Application and Selection Guide Courtesy of NationalSwitchgearGE-Multilin GE-Multilin GE-Multilin GE-Multilin DRIVES — Salem,VA DRIVES — Salem,VA GEA-10639 CR122B,CR122BT,Series

Limitamp® Medium VoltageMotor Control

2400-7200 Volts

Application andSelection Guide

www.nationalswitchgear.com

Courtesy of NationalSwitchgear.com

GE Medium VoltageMotor Control Contents

The General Electric Limitamp motor control centerprovides an economical means of centralizing motorstarters and related control equipment. It permits motorcontrol starters, feeders, isolator switches, distributiontransformers, interlocking relays, programmable control,metering and other miscellaneous devices to be obtainedin a single floor-mounted structural assembly fed from acommon enclosed main bus.Limitamp motor control centers are constructed ofstandardized heavy gauge vertical sections housingvertical and horizontal buses and compartmentedstarters. Sections are bolted together to form a singleline-up assembly. The entire center may be powered byincoming line connection at a single point. Whenpossible, Limitamp motor control centers bear ULsection and unit labels.

AGeneral

Controllers

c5kV Load-Break Switches

Incoming Line

EEnclosures

FProtection & Control

GComponents

Application Data

iElementary Diagrams

jGuideform Specifications, Basic Starter Features



GE Medium VoltageMotor Control General

GE manufactures and provides full support for thefollowing types of medium voltage controllers:

Table A.1 Product Scope

•Limitamp lineup consisting of a fused isolating switchahead of four NEMA Class E2 Limitamp controllers,the first three being used as motor controllers and thelast as a transformer feeder.

AControllers Design Layout Construction

1-High 3-High Bolted2-High Welded

CR 194 StationaryVacuum 400 amp

X X


X X


X X

•Limitamp lineup similar to last three units in the pre-ceding description.The transformer, 480-volt motorcontrollers, and lighting transformer are included in anintegrated Limitamp design.

CR 194 DrawoutVacuum 400 amp

X X

CR 7160 DrawoutAir-Break 400 amp

X X X X

CR 7160 DrawoutAir-Break 700 amp

X X

480V

• *) *) \4 t iLimitamp Control is designed to meet NEMA ICS 3, Part2 and UL 347 requirements. Various enclosure types andconstructions are available and there is a broad selectionof modifications for complete control and protection ofmotors used on modern power-utilization systems withhigh available short-circuit currents.Our preferred design is the CR194 two-high boltedframe for our CR193B 400 ampere vacuum contactor. Inaddition to vacuum technology, we continue to offer ourCR7160 air-break drawout contactor, originally designedin 1966. For detailed information on each of thesedesigns, please see the “Controllers” section.

O OLIGHTING

•Limitamp lineup consisting of a reversing isolatingswitch ahead of a NEMA Class E2 Limitamp motorcontroller.

J iAPPLICATIONSLimitamp controllers are primarily designed for therequirements of motor controllers applied to distribu-tion systems rated 2400, 4160 or 4800 volts. 7200-voltstarters are available in limited applications.Because of its flexibility, other uses for Limitamp equip-ment have become common. Some of these uses are:

<§>o

•Limitamp lineup consisting of two NEMA Class ElLimitamp motor controllers, each having interruptingratings per Table B.l.

® 0o o

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COMPARISON OF CONTROLLER TYPES These functions are basic only and are not intended tobe comprehensive. Ground fault, differential, fault pres-sure, undervoltage, etc., are often required and may alsobe added to a given control. In addition, a transformercontroller must allow for transformer inrush current andnot cause a nuisance trip-out from a momentary line-voltage dip.Transformers must be protected from primary and sec-ondary (winding or downstream) faults. In Limitampcontrollers, current-limiting fuses are applied to protectthe transformer from a primary winding fault, as well asfaults in the conductors from the controller to the trans-former. The fuses are selected to clear high-magnitudefault currents at the first fault half-cycle and allow thecontactor to energize a transformer without operatingon inrush currents. (Inrush currents occur when trans-former is energized, typically 8-12 times rated amperesfor 0.1 seconds) . GE Type EJ-2 current-limiting fuses maybe applied when used with an overcurrent relay that ischosen to coordinate with the EJ-2 fuse and protect thetransformer from damage as a result of a fault in its sec-ondary circuit.PROTECTIONTo determine a basis for protection, refer to ANSI trans-former short-circuit ratings, which define the magnitudeand duration of downstream faults that a transformercan withstand without damage. A relay would have to beset to operate before the damage point is reached. Baseratings, impedance and the connection of the primaryand secondary windings of the transformer must be sup-plied in order to arrive at the relay setting. The relay forthis purpose can be an electronic overload relay.A common problem with single-phased transformers is aphenomenon known as ferroresonance, which can occurwhen an unloaded or lightly loaded transformer sustainsan open conductor in its primary circuit.Ferroresonance causes system overvoltage as a result ofthe transformer core inductance forming a “tuned” cir-cuit with the system distributed capacitance. To avoid fer-roresonance, all three lines must be switched simultane-ously as with a medium-voltage contactor. However, ifone line fuse blows, then single-phasing will occur. Toprevent this, the medium-voltage contactor may be sup-plied with a contactor tripping mechanism that operatesfrom a striker pin located in the fuse. When the fuse ele-ment burns in two, the spring-loaded striker pin isreleased. It projects upward and operates a contact thattrips the contactor. This feature, known as blown fusetrip, would provide positive transformer protection fromsingle-phasing due to blown fuses.

A FULL VOLTAGEThe Limitamp Control across-the-line (FVNR) controlleris the most popular type of controller. In general, high-voltage systems have fewer power restrictions than low-voltage systems; therefore, full-voltage controllers may beapplied to a greater number of applications. Full-voltagecontrollers provide lowest cost, simplicity, minimummaintenance and highest starting torque.REDUCED VOLTAGEPrimary reactor (closed-transition) Limitamp controllersare the most popular of the reduced-voltage type startersbecause they provide a simple, low-cost means of obtain-ing reduced-voltage starts. The starting time is easilyadjustable in the field.Limitamp closed-transition auto-transformer controllersprovide higher starting torque efficiency and a morefavorable power factor during starting than a primaryreactor starter. The transition time can be easily adjustedin the field. NEMA medium-duty reactors and autotrans-formers with 50-, 65- and 80-percent taps are provided asstandard.

REDUCED INRUSHLimitamp wye (star)-delta (closed-transition) startersprovide a means of reducing the starting inrush wherethe starting duty is not limited by the controller. Thistype of controller can be used where extremely longacceleration times are required. Wye-delta starters have avery high torque efficiency. This starter is applicable onlyto six lead motors and no field correction is possible forstarting characteristics. See Table A.2.

TRANSFORMER FEEDERSLimitamp controllers are generally considered motorstarting equipment; however, they are not strictly limitedto motors and can provide very good protection for loadssuch as transformers.Transformers that can be controlled by Limitamp con-trollers must have a primary rated in the 2400- to 7200-volt range.To adequately protect a transformer, it is necessary todefine specific protection requirements. The followingareas will be considered:

1, Transformer winding fault (primary and secondary)

% Single-phasing, resulting in a phenomenon known as“ferroresonance”

3.Transformer overload

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Transformer feeders typically are applied on criticalprocess applications where it is important to maintaincontinuity of operation through a system voltagedisturbance. Mechanically latched contactors allow thecontactor to remain closed during a disturbance. Likecircuit breakers, latched contactors are opened eithermanually or by means of a shunt trip solenoid.

The purchase of factory-prepared space provides aspace unit equipped with vertical power bus, completeinterlocking and isolating mechanisms, operating handleand high-voltage door. It does not include electrical com-ponents.When parts are purchased to fill a future starter, theseconsist of a contactor, power fuses, control power trans-former, CPT fuses and fuse supports, current transform-ers, and low-voltage panel and devices.Table A.2 Comparison of Starting Characteristics

A

CAPACITOR FEEDERSLimitamp 400 amp contactors are ideally suited forcapacitor switching applications. (Note: 800 Amp is notrated for capacitor switching.)

Capacitors may be switched with the motor, but maxi-mum rating for this function must be determined bymotor design.When the capacitors are provided in Limitamp control,they are normally mounted in an auxiliary enclosurebeside the Limitamp controller. A capacitor rated up to200 KVAR can be mounted in the top of a two-highCR194 enclosure with the controller in the bottom.(See Table B.7 for capacitor switching capacities.)

Starting Characteristics Expressedin Percent Rated Value

Starter

Voltageof Motor

Type MotorCurrent

Line TorqueEfficiencyCurrent Torque

100 100 100Full Voltage 100 100

Autotransformer80 percent tap65 percent tap50 percent tap

80 10080 64 (D 6465 10065 42 0 42

10050 50 25 © 25

Primary-Reactor80 percent tap65 percent tap50 percent tap

FUTURE STARTERSFuture squirrel-cage, full-voltage non-reversing starterscan be installed in two-high and three-high construction

i only when factory-prepared space has been purchasedwith the original Limitamp equipment.

80 80 80 64 8065 6565 65 4250 5050 50 25

100Wye-Delta 33 33 10033i

0 Autotransformer magnetizing current is not included in listed values.Magnetizing current is usually less than 25 percent motor full-load current.

Figure A.1 Medium Voitage Compartments inCR194 two-high design

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i

Table A.3 Limitamp® UL-Listed Equipment (as of December 1995)

A OverloadRelays <D

PotentialTransformers

PowerFuseTypes

Max. CurrentRating (Amps)

MainMax.Product/Application Enclosure Sizes <2>BusFault

Rating ®Rating

CR324C1000A <S>2000A

360A vented320A non-vented

One HighCR194 400A ®Vacuum StationaryController (FVNR)(induction motor ortransformer loads)

50 kAGEType1-high

26W x 90H x 30D(34W optional)

RMSMuitilin N/ARBsymm.

4.80 kV(fused)

269+Bolted

CR324C1000A ® ®2000A(1950A

non-vented)

TOP: 360A vented320A non-vented

BOTTOM: 400A vented320A non-vented

Two HighCR194 400AVacuum Stationaryor Drawout (FVNR)

50 kAGE Type2-high

36W x 90H x 30D(40W optional)epoxy coated

RMSMuitilin N/ARBsymm.

4.80 kV(fused)

269+Bolted

CR324CCarboneFerraz

Type RBBolted

CR194 800AVacuum Stationary(FVNR)(induction motor ortransformer loads)

50 kA1000A ®& 2000A

1-high48W x 90H x 30D

RMS 760A vented640A non-vented Muitilin N/Asymm.

4.80 kV(fused)

269+

CR324C1-high34W x 90H x 30D

(42W optional)2-high & 3-high

44W x 90H x 30D

320A 1-high non-vented360A 1-high vented310A 2-high vented250A 3-high vented310A 3-high, with only

2 contactors

50 kACR7160 400A @

Air-Break Drawout(FVNR)(Induction motor ortransformer loads)

GE1000A& 2000A

RMSMuitilin N/AType RAsymm.

4.80 kV(fused)

or RB 269+

1200A vented w/o fuse1000A non-vented w/o fuse

960A vented with fuse840A non-vented with fuse

IC1074 1200A ®Load Break Switch(stationary)(main, feeder, or tie)

50 kAITICarbone

Ferraz1000A

& 2000ARMS

stationaryN/A38W x 90H x 30Dsymm.4.76 kV(fused)

only

Auxiliary Sections ®(incoming line,metering auxiliary)

38 kAITI90Hx 30D

any width available(22” minimum)

1000A& 2000A

RMSN/A stationaryN/APer devices installedsymm.

4.76 kV only

d> Surge arresters available: GE #9111XPB Polymer series.<9 Epoxy-coated.® Refer to factory for 1200A main bus application.® Obsolete design-for replacement only

© High-voltage power cable is MV-90 Dry.® Includes power supply. Use RB bolted fuses.© Mechanical latch available. Capacitor trip device also

available with latched contactor.© A switch may be used for isolation only.

NOTES:(D Copper only, silver or tin plating, insulation available.© NEMA 1 only; gasketing available.© CR324 is ambient-compensated.© With primary and secondary fuses.

Remote control power available.

Other UL-listed components are:•Switches: GE SBM, SB-1, SB-9, SB-16, HEA, HFA,

HMA, HGA States Co. 401-410•Fused pullout switches: Cooper Industries #15149-2, -3•Control Circuit Plugs: Amp-LOK, Mate-N-Lok•Terminal Blocks: GE EB 1, 2, 4, 25, 26, 27; CR151 A, B, C, K•Time-Delay Relay: F5-143, 152, 162 (Flasher)•Control Relays: Potter/Brumfield R10T SSAC•Protective Relays: GE IAC, PJC, NGA, NGV, US,

IJD, ICW, ICR, IAV, IFC, CFD, IJC

Standard UL-listed components are:•GE CR104P switches, push buttons•CR151B terminal boards•American Solenoid Selector Switches•CR120B control relays

•Voltage Sensing Relays: Wilmar Models D100,•D100x, D101, D101X, D1014X, 6X, 10X•Meters: GE DS-63 through 67, 69; Yokogawa•Synchroscope, PF, VM, AM, WM, VAR•Transducers: WodexFunction Monitors: Crompton

Inst. Model 256-TWM, TXM, TYM•Strip Heaters: Wellman Type SS•Suppressors (Coil): CKE/Electronic RC-1313EFR-N

NOTE:ANY UL-LISTED LOW-VOLTAGECOMPONENT IS ACCEPTABLE.

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Table A.4 Publication References for Umitamp Equipment AGroundFault

WiringType ©

Blown Stocking LocationPowerTransformers ©

Publication DescriptionFuse

CR194 Vacuum DesignTrip ©BloomingtonBloomingtonBloomingtonBloomington

MebaneBloomington

GEH-6263 2-high Maintenance InstructionsGEH-5305 1-high Maintenance InstructionsDET-064GEH-5396GEF-8016GEH-5306 Contactor Maintenance Instructions

MTWITIAvailableGE THW

Advertising Brochure800 Amp 1-high MaintenanceContactor Renewal Parts

#GFMSIS with2 or 3indicationkVA XHHW

CR7160 Air-Break DesignMTWITIAvailableGE THW Bloomington

BloomingtonBloomington

GET-3140 Selection & ApplicationGEH-3091 InstructionsGEH-3102 Contactor Maintenance Instructions

#GFMSIS with2 or 3XHHW indicationkVA

Fuses/CurvesMTW BloomingtonGES-5000 Power Fuse CurvesAvailable ITIGE THW

#GFMwithSIS2 or 3 General Purpose ControlsindicationXHHWkVA BloomingtonGEP-1260 Control Catalog — Covers Full

Line of ProductsMTW

Pilot DevicesITITHW AvailableGE#GFMSIS with2 or 3 GEA-10877 CR104P Push Buttons and Pilot Lights Bloomington

XHHW indicationkVARelays and Timers

BloomingtonBloomingtonBloomingtonBloomingtonBloomingtonBloomingtonBloomingtonBloomingtonGE-MultilinGE-MultilinGE-MultilinGE-Multilin

DRIVES —Salem, VADRIVES —Salem, VA

GEA-10639 CR122B, CR122BT, Series A RelaysGEH-4115 CR120B AC RelaysGEH-4120 CR120B Latched RelaysGEH-4147 CR122B Time-Delay RelaysGEH-4139 CR122BP Time-Delay RelaysGEH-969GEH-5475 C-2000 Mini-Contactors Control RelaysGEH-5201 CR192 riSPM for Synchronous Starters1601-0057 Multilin 4691601-0025 Multilin 2691601-0013 Multilin 269+1601-0060 Multilin 239GEA-10618 LoadTrakiVGEH-5600 Load Trak IV

N/ASIS only N/AN/A

CR7 Control and Timing Relay

15 kVAN/A N/ASIS onlymax.

(stationary)

Metering

GEH-6302 Power Leader EPM, User’s GuideGEH-5892 Power Leader, User’s Guide

BloomingtonBloomington

CSA-certified Umitamp Controllers: Refer to GE sales office for applications requiring compliance with CSA and CSA labels.

A5



GE Medium VoltageMotor Control Controllers

•Quick-make quick-break non load-break disconnect —Disconnection of the starter from the main bus isaccompanied by a quick-make quick-break non load-break disconnect switch. This switch improves theoverall control integrity by eliminating the need to rackout the contactor to isolate the load from the power bus.

•Viewing window — The switch is equipped with aviewing window for visual assurance that the disconnectcontacts are open, and a full barrier for personnel safety.When the plunger on the handle is depressed, the CPTsecondary is (isolated) disconnected, Which drops outthe contactor coil. Then, when the handle is thrown tothe “off’ position, the CPT primary and the high volt-age compartment are isolated from line power.

•Dependable performance — Vacuum Limitampcontrol is coordinated to provide the required motorprotection functions and offer reliable overcurrentprotection against the damaging effects of overloadsand short circuits.

CR194 VACUUM STATIONARY& DRAWOUT*f

INTRODUCTIONCR194 Vacuum Limitamp Control is a high-interrupting-capacity, high-voltage control used throughout industryto control and protect squirrel-cage, wound-rotor andsynchronous motors. It can also be used to feed trans-formers and other power-utilization circuits.Typical applications are in paper, steel, cement, rubber,mining, petroleum, chemical and utility-type industries.Limitamp control is also used in water and sewage plantsand public buildings for air conditioning, pumps andcompressors.

aFEATURES•Easily removable contactor — The stationary or

drawout contactors can be easily removed by looseningeasily accessible bolts. Front access to the coil and tipwear checks will substantially reduce the need toremove the contactor in normal circumstances.

•400 or 800 Ampere Contactor — Vacuum Limitampcontrol meets the varying needs of industry includingtoday’s higher horsepower requirements.

•NEMA rated — Vacuum Limitamp control is fully ratedand designed to meet the requirements of NEMA ICS3, Part 2 Class E2 controllers.

•UL rated — Vacuum Limitamp control is fully ratedand designed to meet the requirements of UL 347.

•Self-contained power bus — Vertical power bus is astandard feature of Vacuum Limitamp control.Horizontal power bus is available within the standard90-inch height and lines up with that of previousLimitamp designs. The power bus ratings have capacityfor extended lineups and larger starter requirements.

•Installation ease — Provision for cable runs from thetop and bottom; easily accessible terminals and smalloverall size make installation fast and easy.

•Proven reliability — Vacuum Limitamp control utilizesthe latest vacuum interrupter technology for long,reliable service.

•Simplified construction — The operating mechanismsinside Vacuum Limitamp control have been simplifiedfor further improvements in reliability and ease ofmaintenance.

•Cooler operation — The reduced power losses ofvacuum interrupters, coupled with other designimprovements, provide a controller that is cooleroperating to further enhance service life.

INTERRUPTING RATINGSThe interrupting ratings of the controllers vary with thevalue of the utilization voltage. The following tabledepicts typical NEMA El (unfused) interrupting ratingsfor Class El controllers.

Table B.1 NEMA Class E1 Interrupting Ratings

Interrupting Rating rms symmetrical (mVA)

5000 72002400 4200Contactor Typeand Rating VoltsVolts VoltsVolts

50 75CR193B 400 AmpCR193D 400 AmpCR193C 800 Amp

25 4343 502565 7537

In addition to normal motor protective relays, NEMAClass El Limitamp control must include instantaneousovercurrent relays to signal the contactor to open onfault current. NEMA Class El Limitamp control may beemployed on systems having available short-circuitcurrents up to the interrupting rating of the contactor.Relaying, metering, ground fault protection andlightning arresters are typical of available modifications.NEMA Class E2 Limitamp control incorporates thehigh-interrupting capacity of fast-acting fuses. Thesecurrent-limiting fuses protect both the connected equip-ment and control against the high short-circuit currentavailable from modern power systems. (See Table B.2.)

*Drawout available in two-high construction only

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CR194 control is designed for operation on the followingpower systems.Table B.2

$Maximum Motor Hp©

SystemDistribution

Voltage

Induction,Wound-rotorSynchronous

(0.8PF)

Synchronous(1.0 PF)

InterruptingRating (mVA)

Symmetrical 3-phase 50 or 60 Hz

l 5 >*

= ^ - -5L.-# .

i

CR194 400 Ampere stationary and drawoutV.

1.2400 1600©2800©3200 ©4800©

2000©3500©4000©6000©

2004200 3504800 4007200 600

CR194 800 Ampere stationary

2400 3200 ©5600 ©6400 ©

4000 ®7000 ©8000 ®

2004200 3504800 400

© Based on 400 amperes RMS maximum, enclosed, NEMA 1, vented one-high© Based on 800 amperes RMS maximum, enclosed, NEMA 1, vented one-high© For non-vented enclosures, apply a factor of 0.8 to the maximum horsepower Figure B.1 CR194 two-high construction

There are three basic constructions available utilizingthe vacuum contactor:•CR194 two-high 400 Amp•CR194 one-high 400 Amp•CR194 one-high 800 Amp

The enclosure will accommodate outgoing cable sizes asshown in Table B.4 when both top and bottom compart-ments house contactors. There is also an option to usethe top compartment as an incoming line section withlimited cable sizes. Refer to the factory for details.Otherwise, an auxiliary section will be required.It is not necessary to de-energize one controller toservice or install the second controller. The enclosureis designed to safely permit termination of one set ofmotor leads while the other controller is energized.Main horizontal power bus is available in 1000/1200amperes and 2000 amperes. Both the main and verticalbus is epoxy-insulated and accessible from front andrear. The horizontal power bus will match with existingLimitamp lineups, including air-break units.The current ratings are shown in Table B.3.Table B.3 Ratings and Horsepower Limitations in CR194 Two-high

CR194 TWO-HIGH 400 AMPThe two-high construction has basic dimensions of 36”wide, 90” high and 30” deep, making it the industry’ssmallest. An optional 40-inch-wide enclosure is alsoavailable when additional cabling space is required.Bolted rigid frame construction provides an accurate andsimple building platform, giving greater structuralstrength and flexibility. Full top and bottom compart-ment isolation is provided for greater safety, and the two-high construction is UL/CSA approved.A door-in-door construction provides roomy low-voltagecompartments, which offer flexibility, safety and highdensity. Large low-voltage door mounting surface per-mits multiple relays and metering packages, includingdrawout relays. The interior of the low-voltage compart-ment features a white mounting panel, which is easilyaccessible and provides ample space for numerous con-trol options.

ContactorLocation

HorsepowerMaximumCurrent

2400 Volts 4000-4800 Volts

Non-Vented

Non-Vented Vented Vented Non-VentedVented

TOP 320360 1600 1200 2800 2500BOTTOM 320 1200400 1800 3100 2500

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Table B.4 Cable Size Limits (approximate) in CR194 Vacuum Control

With Shielded Cableand Hand- wrapped

Stress Relief

With Shielded Cable andPrefabricated Stress Cones

With Non-shielded CableConstruction

Per phase Per phasePer phase

LoadIncoming Load IncomingLoad400-Ampere Incoming

1-250 kcmilpreferred

1-500 kcmilpossible

1-500 kcmil 1-500 kcmil 1-500 kcmilOne-high 26”-wide Case 1-500 kcmil 1-500 kcmil

2-500 kcmil 2-500 kcmil 2-500 kcmil 2-500 kcmilOne-high 34”-wide Case 2-500 kcmil2-500 kcmil

1-250 kcmilpreferred

1-500 kcmilpossible

ContactFactory

1-#3/0preferred1-#4/0

possible

1-500 kcmil ContactFactory

Two-high 36”-wide Case ContactFactory

ContactFactory

1-250 kcmil1-500 kcmil ContactFactory

1-500 kcmilTwo-high 40”-wide Case ContactFactory

800-Ampere

2-750 kcmil 2-750 kcmil 2-750 kcmil 2-750 kcmilOne-high 48”-wide Case 2-750 kcmil2-750 kcmil

2,Up to 10 kVA extra capacity CPT (34” wide only). 3KVA max on two-high design.

3, Up to approximately 10 control relays for inductionmotor starters.

4,Two size SI drawout relay cases.A 34-inch-wide, one-high enclosure is available as anoption, where more cable room or multiple cable con-nections are required. Power factor correction capacitorscan also be supplied and will be mounted in an auxiliaryenclosure.

CR194 ONE-HIGH 400-AMPThe one-high packaging (one contactor per enclosure)for the 400-ampere vacuum contactor has basic dimen-sions of 26 inches wide, 90 inches high, and 30 inchesdeep, including power bus. It is constructed from awelded enclosure to house a single vacuum contactor inthe high-voltage compartment located at floor level. Theentire upper compartment is available for low-voltageequipment and includes a swing-out panel for ease ofcomponent mounting and accessibility.This enclosure will accommodate cable sizes as shownin Table B.4. Cable runs may enter from top or bottomwithout modification. Top or bottom cable entrance intothe enclosure does not need to be specified.The one-high design will accommodate the followingcombination of components:1. One three-phase potential transformer used

for metering.

CR194 ONE-HIGH 800-AMPThe one-high enclosure for the 800-ampere vacuumcontactor has basic dimensions of 48” wide, 90” high and30” deep in a welded frame. Maximum cable sizes areshown in Table B.4. Protected raceways isolate the motorand power leads from one another. Cable runs may enterfrom the top or bottom and are straight runs.

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VACUUM CONTACTORSThe vacuum contactors supplied with Vacuum Limitampare of the magnetically held type. They are fully rated at400 or 800 amperes in accordance with NEMA and ULstandards. The contactors differ in size, weight andmethod of termination. The vacuum interrupters arealso different among the various models and are notinterchangeable due to their different current ratings,and variations in interlock and wire harness mounting.The contactor may be easily removed for service in eachof the designs available, providing easy access for normalmaintenance, such as vacuum interrupter wear checksand replacement of the operating coil, without removingthe contactor. The only time the contactor needs to beremoved is to replace a vacuum interrupter at the end ofits service life or to adjust the vacuum interrupter forwear on the interrupter tips.The standard contactors for industrial motor startersare closed by a single magnet and are held closed by thesame magnet. This contributes to simplicity of mechani-cal design and increases the mechanical life of thecontactor. Standard contactors may not need adjustmentor mechanical repair for many years, primarily due tomechanical simplicity and sturdiness. However, preven-tive maintenance checks at least once per year arerecommended.Low voltage on the contactor operating coil of an electri-cally held contactor will cause the contactor to open. Formost motor applications, it is desirable to disconnect themotor from the line when the system voltage is lost orlowered appreciably; therefore, the electrically held con-tactor is appropriate. The DC operating coil of the con-tactor is designed to be used with a holding circuit tolimit coil current. The contactor coil is designed for useon 115 volts rectified AC or 125 volts DC.For all NEMA Class El controllers, the contactor mustbe capable of interrupting the available short-circuitcurrent. For these applications, instantaneous overcur-rent relays must be used to interrupt the contactor coilcurrent. See Table B.5 for additional technical specifica-tions on the vacuum contactor.

Figure B.2 400-Ampere Vacuum Contactor

LATCHED CONTACTORSThere are some applications where it is not desirable todisconnect the motor from the line during voltagedepression. These applications are generally those associ-ated with a critical drive where the continued rotation ofthe drive may be more important than possible damageto the motor from low voltage.The mechanical latch maintains contactor closure underthe most severe undervoltage conditions, including com-plete loss of voltage. Latched contactors may be specifiedif required by the application. The standard close andtrip coils are designed for use on 120 volts rectified ACor 125 volts DC. Trip coils are also available in 24V, 48Vand 220V. A manual release feature is provided as stan-dard. Capacitor trip devices can also be used for releaseon the trip coils.The Limitamp latched contactors are identical to theunlatched versions, with the exception of a small latchattachment mounted on the contactor, which slightlyincreases the depth of the contactor.Latched contactors are interchangeable mechanicallywith the standard non-latched versions, both fromlatched to non-latched, and vice versa. However, in eachcase, it is necessary to change the wiring in the controlcircuit to the contactor coil or coils and to change theenclosure door to accommodate the manual latchrelease knob.

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APPLICATION NOTES — VACUUM CONTACTORS ing the zero-crossing, leaving in its place a very highdielectric vacuum space. Chopping occurs just beforethe current zero crossing because the arc becomes unsta-ble under the light current conditions and prematurelyinterrupts the current. The instantaneous level of cur-rent when this interruption occurs is called the “chop”current. The magnitude of the resulting voltage tran-sients is the product of the “chop current” and the loadsurge impedance.GE employs special metallurgy in its tip design to mini-mize chopping. The tip material consists of a sinteredtungsten-carbide material that is impregnated with silver.The tungsten provides long life in hot arcing conditions,and the silver provides for low chop currents. In chopcurrent tests performed on GE’s 400 ampere vacuumcontactors, it was found that the load surge impedancehad significant effect on the average chop current. Forexample, tests with a surge impedance of 1000 ohmsyielded average chop currents of 1.2 amperes but only0.28 amperes with 4500 ohms surge impedance. Theselevels of chop currents cause little concern for motorinsulation systems.

If motors are expected to be “jogged” or frequentlyswitched-off while accelerating up to speed, surge sup-pressing devices discussed earlier should be seriouslyconsidered to minimize the effects of long term motorwinding insulation degradation due to multiple re-igni-tion transients that can occur while interrupting motorinrush currents. Multiple re-ignitions are surges of arc-ing current across an opening vacuum interrupter tipthat occur in the first few micro-seconds after the tipspart. Multiple re-ignitions are virtually non-existentwhile interrupting normal motor running currents.

Switching Transients and Vacuum ContactorsVoltage transients when transmitted downstream canbe harmful to motor insulation systems. The transientsoccur in most electrical systems and are usually due toswitching surges or lightning strikes. Vacuum contactorswitching is only one source of voltage transients. Forthese reasons GE recommends that customers installsurge capacitors and arresters at the motor terminals forvacuum as well as airbreak contactor applications. Thesurge capacitors reduce the steepness of the voltage tran-sient wavefront, thus reducing the stress on the motorinsulation.Vacuum contactors have proven their suitability as a reli-able and safe means of controlling motors, transformers,and capacitor loads. This has been demonstrated by avery good track record over a period of more than 10years in Vacuum Limitamp equipment and much longerin GE Power-Vac switchgear equipment.

Also, an independent EPRI study, investigating the relia-bility of vacuum switching devices a number of years ago,concluded “... motors switched by vacuum devices hadfailure rates which are no higher than those for motorsswitched by air or air-magnetic devices.”

Chopping Transients in Vacuum LimitampThe vacuum switching device is among the best switchingdevice available because it most frequently interruptsload currents in an “ideal” fashion — that is, when theload current is at a current zero. However, there is aprobability that some switching operations may producevoltage transients due to chopping. Chopping is a phe-nomenon that occasionally occurs as the currentthrough a contactor pole is interrupted during a contac-tor opening operation.To understand the nature of chopping, a little under-standing of what occurs as a vacuum contactor interruptscurrent is necessary. When the operating coil of a vacu-um contactor is de-energized, kick-out springs in thecontactor cause the armature to open and force the vac-uum interrupter tips to part. Any current that is flowingthrough the tips at the instant of parting continues to arcacross the open tips. This arcing continues until thesinusoidally varying current approaches zero. As thepolarity reverses across the open tips, current ceases toflow because all charge carriers in the arc disappear dur-

Vacuum Interrupter IntegrityThe loss of interrupter integrity due to loss of vacuum isa potential concern because the vacuum interrupterceases to act as an interrupter if vacuum is lost. VacuumLimitamp interrupters are tested three times during themanufacturing process for vacuum integrity. Historically,this process has reliably eliminated loss of vacuum dur-ing normal product operation. To maintain integrity,annual hipot checks are recommended as part of a user’snormal preventative maintenance practice. The recom-mended hipot test voltage is 20 kV AC RMS for the 400ampere and 800 ampere contactors. The hipot proceduresare described in equipment instructions GEH-5305.

B5




Table B.5 Vacuum Contactor Technical SpecificationsAC vs.DC HipotThe AC hipot is recommended for vacuum interruptersbecause DC hipot may indicate problems with a goodinterrupter. The reason for this is complex, but inessence there may be microscopic gap broaching “anom-alies” across the open interrupter tips that the DC hipotcannot distinguish from real problems such as a loss ofvacuum. AC hipot systems, on the other hand are ableto “burn-off’ these anomalies, allowing the good inter-rupter to recover (Normal contactor load currents willalso burn-off these anomalies) .

If it is desired to use a DC hipot on a vacuum contactor,it is important to recognize that the results may falselyindicate a bad bottle. Also, DC voltage levels should notbe greater than 1.4 times the recommended AC RMSvalue in order to maintain a safe margin of voltage to X-ray emission. At 35kV small amounts of X-ray radiationmay be emitted. The level of emission is well below theallowable levels established in ANSI 37.85-1972. UsingDC hipot at 28 kV (1.4 x 20 kV AC RMS) does maintaina safe margin to X-ray emission.

CR193BCR193D

CR193CRatings

Rated voltage (Volts) 5000 7200 (D 5000Rated current (Amperes) 400 800Short circuit interruptingcurrent (kA) symmetrical

9.06.0 6.0

Class E1 mVA 50 75 75

E2 mVA 2400 volts3600 volts4160 volts4800 volts7200 volts

200 200300 300

350350400 400600 ©

Short-time current(amperes) 30 seconds

1 second2400 48006000 12.000

Impulse withstand (kV) 60 60Dielectric strength1 minute (kV) 18.2 13.2513.25

Vacuum integrity test(AC RMS)

20 kV 20 kV

Switching frequency(Operations/hour)

1200 600

Mechanical life (Operations) 2 x 106 1 x 1 0 6

Electrical life (Operations) 1 x 106 0.25 x 106Closing time (Maximum MS) 270350

Opening time (Maximum MS)(Switched on DC side of rectifier) 50 55

85% maxPick-up voltage (% of rated) 85% maxDrop-out voltage (% of rated) 10 - 65% 10 - 65%

Control voltage (Volts) 115 rect. AC 115 rect. AC

Control circuit burden (VA)ClosingHold-in

55017530 110

Auxiliary contacts 20 © maximum(N.O. or N.C.)

20 maximum(N.O. or N.C.)

Ratings Current (amperes)Voltage (volts)

10 10600 600

Switching AC 6 amperes at600 volts

1 ampere at240 volts

6 amperes at600 volts


DC

Contactor weight lb (kg) 77 (35) 114 (52)

Standards applicable UL 347NEMA ICS 3,

UL 347NEMA ICS 3,

Part 2 Part 2

© CR193Bonly.© Limited to 10 in two-high starter.

B6




TRANSFORMER & CAPACITOR FEEDERSTable B.7 is a listing of switching capacities for bothtransformer and capacitor loads. A more detailed discus-sion of these two applications is in the Section A.Table B.7 CR194 Vacuum Switching Capacities (One-high)

Table B.6 Contactor Dimensions in (mm)

CR193D CR193CCR193BKey

18.90 (480)16.93 (450)17.52 (445)12.99 (330)17.00 (432)11.02 (280)1.38 (35)

14.88 (378)13.50 (343)14.65 (372)10.24 (260)12.99 (330)8.46 (215)1.18 (30)1.93 (49)

A 14.88 (378)13.50 (343)14.65 (372)10.24 (260)12.99 (330)8.48 (215)1.18 (30)

6C

3-PhaseCapacitors

(kVAr)

System Voltage 3-PhaseTransformers

(kVA)

8-hour OpenRating (Amperes)

DEFG 12001600400 2400H 210028004160

2400320048004800 36007200

3200 N/A24008005600416064004800

mi WEIGHTS AND DIMENSIONSVacuum Limitamp control varies in weight by controllertype and construction. The approximate weight forestimating purposes is included in Table B.8.All Limitamp controllers have a common depth of SOinches and height of 90 inches. Overall width of con-trollers vary according to type of controller as shown inTable B.8.Main horizontal power bus for electrically connectingsections of Limitamp control does not add to the stan-dard 90-inch height.

oo

o

VIEW FROM INTERRUPTER SIDE

Figure B.3

c

o HO p1—fur/rpo

o oo ©

3 <§>o o 1•©oCRI93D DRAWOUTCONTACTOR 0Nlv5 /

/MECHANICALLATCH ASSEMB.Y —'

d © o © y d/« F

o Q o o Q o >O O

E T

A

G

VIEW FROM COiL S ‘0E D

SIDE VIEW

Figure BA

B7




Table B.8 Estimated Weights and Dimensions — CR194 Vacuum Controllers,NEMA1 Vented Enclosure <D

7200 Volts4000*4800 Volts <§)ContactorAmpere

Rating ®

2400 VoltsController Type <2>One High (One Starter)®

Approx,weightin Lbs

Width In inches®(90 high x30 deep)

Approx,weightin Lbs

Width in inches ®(90 highx30 deep)

Max Hp3-phase

Width in inches ®(90 highx30 deep)

Max Hp3-phase

Max Hp3-Phase

Approx,weightin Lbs 50/6050/6050/60

Squirrel-Cage InductionFull-Voltage Nonreversing 1200 3426 480026 2800 1200400 1600 1200

1450 4848 5600800 3200 1400

Squirrel-Cage InductionFull-Voltage Reversing 2800 1500 581600 1500 58400

Reduced-Voltage NonreversingPrimary Reactor Type 1000 2800 58400 1000 2800 58

2800 4800 981600 4800 98400

Reduced-Voltage NonreversingAutotransformer Type(Closed Transition)

1000 3000 581000 3000 58400902800 50001600 5000 90400

5600 5200 1123200 5200 112800

Two-Step Part-WindingNonreversing 2800 1400 581600 1400 58400

Two-Speed One-WindingFVNR 682800 16001600 1600 68400

Two-Speed Two-WindingFVNR 582800 16001600 1400 58400

0.8 1.01.00.8Induction/SynchronousFVNR

0.8 1.0PF PFPF PFPF PF

344800 5500 14002500 3500 1400 342000 1400 34Synchronous Induction FVNRBrush Type & Brushless

400 1600485600 7000 26004000 2600 48800 3200

Synchronous Motor, RVNRPrimary Reactor 681000 30001000 3000 68400

902800 50001600 5000 90400

1.01.0 0.8Synchronous Motor, RVNRAutotransformer

0.8PF PFPFPF

1000 1250 3200 761250 3200 76400 10001082800 3500 52001600 2000 5200 108400

0.8 1.0Induction/SynchronousMotor, RVNR PF PF

5500 684800Neutral Reactor 400

® Two-high Starters are available in bolted-frame construction, available only for 400ampere, squirrel-cage FVNR applications.Dimensions are 36” wide x 90” high x 30”deep. Weight is 2000 lbs.

® Dimensions shown are approximate, based on standard motor designs.

(D See Enclosure & Bus Ratings Section E for NEMA 3R enclosures.<2> For wound-rotor motor starter consult factory.® Derate'by 0.8 for non-vented enclosures.<3> Maximum horsepower at 4160 volts AC in one-high NEMA 1 enclosure.

B8




and maintenance. The drawout contactor swings openfor rapid contact tip and shunt inspection and maxi-mum access when maintenance is required.

CR7160 AIR-BREAK DRAWOUTINTRODUCTIONAir-break Limitamp control is high-interrupting capacityhigh-voltage control used throughout industry to controland protect squirrel-cage, wound-rotor and synchronousmotors. It can also be used to feed transformers andother power-utilization circuits.Typical applications are in paper, steel, cement, rubber,mining, petroleum, chemical, and utility-type industries.Limitamp control is also typically used in water andsewage plants and public buildings for air conditioning,pumps and compressors.

INTERRUPTING RATINGSLimitamp control is designed to meet NEMA ICS 3, Part2 and UL 347 requirements with a 60-kV BIL rating. Itemploys fast-acting current-limiting power fuses, a draw-out air-break contactor rated either 400 amperes open(360 amperes, enclosed, NEMA 1, vented, one-highenclosure) or 700 amperes open (630 amperes,enclosed, NEMA 1, vented, one-high enclosure) , andambient-compensated overload relays for complete con-trol and protection of motors used on modern power uti-lization systems with high available short-circuit currents.The 400-ampere unfused contactors have an interrupt-ing rating of 50 mVA; the 700-ampere unfused contactor,75 mVA.In addition to normal motor protective relays, NEMAClass El Limitamp control includes instantaneous over-current relays to signal the contactor to open on faultcurrent, NEMA Class El Limitamp control may beemployed on systems having available short-circuit cur-rents up to the interrupting rating of the contactor.Relaying, metering, ground fault protection, and light-ning arresters are typical of available modifications.

NEMA class E2 Limitamp control incorporates the high-interrupting capacity of fast-acting fuses. These current-limiting fuses protect both the connected equipmentand control against the high short-circuit current avail-able from modern power systems.CR7160 control is designed for operation on the follow-ing power systems.

FEATURES•Drawout construction — Contactor and power fuses

form a single drawout assembly. No cables to disconnect.•Unique swing-open contactor design — The contactor

is compact and has unique swing-open feature, provid-ing quick inspection and maintenance.

•400- or 700-ampere contactor — Limitamp controlmeets the varying needs of industry including today’shigher horsepower requirements.

•One-, two- or three-high selectivity — Limitamp controlis available in either one-, two- or three-high enclosuresto meet the needs of the application.

•NEMA rated — Limitamp control is fully rated anddesigned to meet the requirements of NEMA ICS 3,Part 2, for E2 controllers.

•UL rated — Limitamp control is fully rated anddesigned to meet the requirements of UL 347.

•Built-in power bus — Vertical power bus is a standardfeature of Limitamp control. Horizontal power bus isavailable within standard 90-inch height and lines upwith that of previous designs.

•Installation ease — Drawout construction; straightcable runs from top or bottom. Ample room to enterenclosure makes installation fast and easy

•Safe, simple operation — A unique mechanical inter-locking system is tied in with the ON-OFF positionoperating handle to provide sure and simple operation.

•Dependable performance — Limitamp control is coor-dinated to provide the required motor functions andoffer reliable overcurrent protection against the dam-aging effects of overloads and short circuits.

•Fast, easy maintenance — Every component is accessi-ble and removable from the front for simple inspection

Table B.9Maximum Motor HP ®

SystemDistribution

Voltage

InductionWound-rotorSynchronous

(0.8 PF)

Synchronous(1.0 PF)

InterruptingRating (mVA)

Symmetrical 3-phase 50 or 60 Hz

CR7160 400 amp

1500®2500®

1750®3000®

20024004004800

CR7160 700 amp

2750®5000®

2602400 2500®4500® 5204800

<D Based on 360 amperes maximum, enclosed, NEMA 1, vented, one-high enclosure.<2> Based on 630 amperes maximum, enclosed, NEMA 1, vented, one-high enclosure.

B9




The CR7160 400 ampere one-high design will accommo-date the following combination of components:

1.Synchronous static exciter up to 9 kW.2.Two single-phase or one three-phase potential trans-

formers.3.Up to 10 kVA extra capacity CPT.4.Up to approximately 20 control relays for induction

starters.5.Up to six size SI drawout relay cases.Power-factor-correction capacitors can be supplied andwill be normally mounted in an auxiliary enclosure.

Table B.10 Horsepower Limitations in Multi-high Construction

2400 Volts 4000-4800 Volts

Induction Amperes Hp(per starter) (per starter)

Amperes Hp(per starter) (per starter)

Three-high

Vented 250 1000 250 1750

Non-vented 150 625 150 1000

Two-high

Vented 1250 310310 2500

Non-vented 210 875 210 2000

With one common design drawout contactor, CR7160400 amp control is available in either one-, two- or three-high construction.CR7160 700 amp control is available in one-high con-struction only.

CR7160 TWO-HIGH 400 AMPTwo-high packaging accommodates two contactors in theenclosure, with basic dimensions of 44 inches wide, 90inches high, and 30 inches deep. It is constructed in ver-tical sections of two space units each. Two FVNR induc-tion starters may be housed in a vertical section.Cable sizes which may be accommodated in a two-highdesign are reduced slightly from that which may be con-nected in the one-high design. (Refer to Table B.ll forcable size limitations.)The enclosure is designed to safely permit terminationof one set of motor leads while the other controller isenergized. The two sets of motor cables are isolatedfrom one another. Incoming power cable raceway is alsoisolated. All sets of cables may be brought into the starterfrom the top or the bottom.Control relay space is available in a separate compart-ment with its own door and barriers. Approximatelythree extra control relays in addition to a ground faultrelay and time-delay undervoltage protection can bemounted in the low-voltage compartment. One ammeterand switch, four push buttons, and four lights can bemounted on the low-voltage door. If no extra controlrelays are used, a watt hour meter can be mounted onthe door.

BASIC CONSTRUCTIONLimitamp starters may be stacked multi-high (two- orthree-high), where horsepower rating and need formetering and relaying is limited to allow stacking. SeeTable B.10 for horsepower and ampere limitations inmulti-high construction. Non-stack design (one-high) isnormally used for synchronous-motor starters, wound-rotor starters, and squirrel-cage induction starters, whichhave a considerable number of extra control functions,protective relays, and/or metering. All enclosures havethe same bus location and may be connected together bybus splicing plates.

CR7160 ONE-HIGH 400 AMPThe one-high packaging (one 400 amp contactor perenclosure) has basic dimensions of 34 inches wide, 90inches high and 30 inches deep, including power bus. Itis constructed to house a single drawout contactor in thehigh-voltage compartment located at floor level. Theentire upper compartment is available for low-voltageequipment and includes a swing-out panel for ease ofmounting and accessibility.This enclosure will accommodate cable sizes as shown inTable B.ll. Cable may enter from top or bottom withoutmodification. Top or bottom cable entrance in the enclo-sure need not be specified.

CR7160 THREE-HIGH 400 AMPThree-high packaging (up to three FVNR starters perenclosure) sharply reduces floor space requirements. Itis constructed in vertical sections of three space unitseach. Each space unit is capable of housing one full-volt-age, nonreversing squirrel-cage motor starter. You canpurchase one or two starters per vertical section and addothers later in factory-prepared space units. Althoughthe enclosure is only 44 inches wide x 90 inches high x30 inches deep (including power bus), an isolatedmotor-cabling compartment and an isolated incomingpower-cabling compartment is included.

B10




The 42-inch wide one-high enclosure is available as anoption on the CR7160 400-ampere where more cableroom or multiple cable connections are required.

All starters must be de-energized to connect motor cableto any one starter.Cable sizes are limited for motor connection.Each starter unit has a low-voltage control compartmentwith separate access door located to the left of the high-voltage compartment.One extra control relay, time-delay undervoltage protec-tion and the ground fault relay can be mounted in thelow-voltage compartment. Two push buttons, two lights,and one ammeter and switch can be mounted on thelow-voltage door.Note: Two-high and three-high constructions requirepower bus.

CR7160 ONE-HIGH 700 AMPThe one-high enclosure for CR7160 700-ampere controlhas basic dimensions of 42 inches wide, 90 inches highand 30 inches deep. This 42-inch enclosure has sufficientspace to permit termination of two (2) 750 kcmil cablesper phase with stress cones for power and motor leads.(See Fig. B.4.) Protected raceways isolate the motor andpower leads from one another. Cable runs may enterfrom the top or bottom and are straight runs. Figure B.5 CR7160 700 amp control with (2) 750 kcmil motor

cables per phase, entering from bottom

Table B.11 Cable Size Limits (Approx.) in CR7160 Air-break Control

With Shielded Cable andHand-wrappedStress Relief

With Shielded Cable andPrefabricated Stress Cones

Construction With Non-shielded Cable

Per Phase Per Phase Per Phase

Incoming LoadIncoming Load Incoming Load400-Ampere

1-500 kcmil 1-250 kcmilPreferred

1-500 kcmilPossible

One-high 34” wide Case 2-500 kcmil 1-500 kcmil 1-500 kcmil 1-500 kcmil

1-#3/0 Preferred1-#4/0 Possible

1-500 kcmil 1-250 kcmilPreferred

1-500 kcmilPossible

1-500 kcmilTwo-high 44” wide Case 2-500 kcmil 1-500 kcmil

1-#2/0 Preferred1-#4/0 Possible

Three-high 44”wide Case 1-500 kcmif 1-#3/0 Preferred1-250 kcmil

Possible

1-500 kcmil2-500 kcmil 1-500 kcmil

700-Ampere

2-750 kcmil2-750 kcmil 2-750 kcmilOne-high 42” wide Case CD 2-750 kcmil 2-750 kcmil 2-750 kcmil

© Can be supplied as option on 400-ampere Limitamp control when more cable space is required

B11




The standard contactors for industrial motor starters areclosed by a single magnet and are held closed by thesame magnet. This contributes to simplicity of mechani-cal design and increases the mechanical life of the con-tactor. Mechanical latch contactors are available as anoption and are explained on page B4.See Table B.14 for additional technical specifications onthe air magnetic contactors.

WEIGHTS AND DIMENSIONSLimitamp control varies in weight by starter type andconstruction. The approximate weight for estimatingpurposes is included in the Table B.12.All Limitamp control has a common height of 90 inchesand a common depth of 30 inches. However, the overallwidth varies with type of Limitamp and is included inTable B.12.For convenience in handling and installation, Limitampcontrol is equipped with removable lifting angles or lugs.Power bus for electrically connecting sections ofLimitamp control does not add to the standard 90-inchheight.

Figure B.6 CR7160 400-ampere air-break contactor is fuiiy ratedand compietely roll out or drawout

DRAW OUT AIR-BREAK CONTACTORSThe air-break contactor normally furnished on Limitampcontrol is of the magnetically held-in type. It is drawoutand fully rated at 400 or 700 amperes (eight-hour openrating) in accordance with NEMA and UL standards.Both the 400- and 700-ampere contactors have the samebasic design but with current-carrying parts of differentcapacity. This uniquely constructed contactor can actual-ly be swung open, exposing all integral parts for rapidinspection and maintenance. Power fuses are combinedwith the contactor to form a single assembly which iscompletely drawout without disconnecting cables.

r iV .I i f

In one-high Limitamp control, the drawout contactor,which may be rated 400 or 700 amperes, is mounted onwheels and can be easily rolled out of or into the floor-level high-voltage compartment. The contactor can beswung open after simple removal from the enclosure.The DC operating coil of the contactor is designed to beused with a holding impedance that is inserted after thecontactor is fully closed to limit coil current. The con-tactor coil is designed for use on 120 volts AC (rectified)or 125 volts DC control source.Two- and three-high Limitamp control uses the 400-ampere contactor only. It is mounted on slide rails foreasy removal and can be swung open within the enclo-sure from its drawout inspection position. Normalinspection and maintenance is done with the contactorin the enclosure. A contactor lifting table is available forcontactor removal during installation.

Figure B.7CR7160 two-high construction

B12




Table 8.12 Estimated weights and Dimensions — CR7160 Air-break Controllers, NEMA1 Vented Enclosures

ContactorAmpere Rating

Max HP3-phase 50/60

2400 Volts 4800 VoltsController Type

Width in inches(90 high x30 deep)

Approx.weight

Width in inches(90 high x30 deep)

Approx.weight

(lb.)(lb.)

Three-high sectionsSquirrel-cageFull-voltagenon-reversing

2600 441000 2600 444002600 441750

Two-high sections

2400 441250 2400 34400442500

One-high sections

1600 341500 1600 344001600 3425002400 424500 2400 42700

2200 341500 2200 66Squirrel-cageFull-voltageReversing

4002000 3425003200 744500 3200 74700

2700 66100 2700 66Squirrel-cageReduced-voltageNon-reversingPrimary Reactor

4002900 66400 2900 663400 661000 3400 664800 981500 4800 665400 9825008400 1184500 8400 118700

2900 98100 2900 98Squirrel-cageReduced-voltageNon-reversingAutotransformer

4003100 98400 3100 983600 981000 3600 985000 1301500 5000 1305600 13025009200 1404500 9200 140700

2200 66150 2200 66Wound-rotorNon-reversing

4002600 98400 2600 982800 98700 2800 98

1621000 3600 36001624000 1941500 4000 1944400 22617504700 25822505200 29025007900 2941750 6100 2307007900 2944500 7000 262

1.0pfSynchronousFull-voltageNon-reversing

0.8pf

2000 341500 1750 2000 344002000 3430002500

2800 424500 5000 2800 42700

B13




TRANSFORMER & CAPACITOR FEEDERSTable B.13 is a listing of switching capacities for bothtransformer and capacitor loads. A more detaileddiscussion of these two applications is in Section A.

Table B.14 Air-break Contactor Technical Specifications

IC 302Air Magnetic

IC 302Air Magnetic

Ratings

Rated Current (Amperes)(open rating)

400 700Table B.13 CR7160 Air-break Switching Capacities (One-high)

Rated voltage (Volts) 5000SystemVoltage

3-PhaseTransformers (kVA)

3-PhaseCapacitors (kVAr)

5000

Short circuit interruptingcurrent (kA)

6.0 9.0400 amp contactor

Class E1 mVA 502400 1500 CD2500 ©

1100 754800 1800 Class E2 mVA 2400 V

4200 V4800 V

200 2003505500 3000 2250 350

6000 3000 2250 400 4006600 3750 2800 Short-time current

(amperes) 30 seconds1 second

6900 4000 3000 2160 37807200 4000 3000 5400 9450

700 amp contactor Impulse withstand (kV) 60 602400 2500 ©

4500 ®1800

Dielectric strength 1 minute (kV) 13.25 13.254800 3375

Switching frequency(Operations/hour)

600 600© Based on 360 amperes maximum, NEMA 1, vented, one-high enclosure.<D Based on 630 amperes maximum, enclosed, NEMA 1, vented, one-high enclosure.

Mechanical life (Operations) 1 x 1061 x 106

MULTI-HIGH COHSTRUCTIONUse the HP and current rating of Table B.10 for trans-former kVA.

Use 0.75 times the transformer rating for capacitorfeeder rating.

Electrical life (Operations) 2.5 x 1052.5 x 105

Closing time (Maximum MS) 120 120

Opening time (Maximum MS)(Switched on DC side of rectifier)

100 100

85% maxPick-up voltage (% of rated) 85% max

10-65%Drop-out voltage (% of rated) 10-65%

115 rect. AC 115 rect. ACControl voltage (Volts)

Control circuit burden (VA)ClosingHold-in

2000 2000150 150

12 maximum(N.O.or N.C.)

Auxiliary contacts Quantity 12 maximum(N.O. or N.C.)

Ratings Current (amperes)Voltage (volts)

10 10600 600

Switching AC 6 amperes at600 volts


6 amperes at600 volts


DC

300(136)Contactor weight Lb(kg) 275(125)

Figure B.9Outline dimensions drawing Figure B.8

UL 347NEMA ICS 3,Part 2

Standards applicable UL 347NEMA ICS 3, Part 2

B14




15.50*—f— 500*

«— 7 75*— 5oo‘—n

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2384* J !17.37* \rStOM —j-300*-*

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1250*830* l - t50cf««•> 859T

J imotor i1823“15.00* » AA «

10.80*17.53* 280* * 332%23.85*27.13*

1385*

Figure B.8 Standard contactor 400 amperes, with wheels, fuse clips, and stab connections.(No (uses included). Weight 275 pounds applicable to one-high controllers

•— 15.50*—f— 500* J— 7 75*

r— ioo*—nt

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lH-500*

8.30*•250*50C{CiO- T l - t4591*u087« \ 1823* I•0.87*1500*

- *7 53* «080*i250* «- 332%2365*

27 13- 1365*

Figure B.9 700-amperes contactor with bolted fuses, stab connections and wheels. Weight 300 pounds

B15



GE Medium VoltageMotor Control 5kV Load-Break Switches

lineup. For the 1200-ampere switch, fuses are availableup to 960 amperes continuous. These large fuses must beapplied as line protectors for short circuit only, relyingupon branch circuits or backup overload protection byother means.Drawout switches must be applied as feeders only. Thefixed mounted switches may be used as incoming switch-es or feeder switches.These switches are designed specifically for use withLimitamp control. They are available with 1000- or 2000-ampere AC main power bus within the enclosure for easylineup with Limitamp starters.Other features of these switches are:

•Viewing window to see condition and position of switchblades.

•Blown-fuse indicator that can be seen throughview window.

•Bolted fuses available for maximum reliability.•High reliability interruption.•Available with key-type interlocks. Maximum of three

keys per position (lock open or lock closed).•Outside door interlocked directly to shaft to prevent

opening with switch energized.•Externally operated handle that activates spring-

charged quick-make/quick-break mechanism.•Easy inspection.•High mechanical life.

INTRODUCTIONIC1074 load-break switches are manually operatedtriple-pole, single-throw disconnecting switches with anintegral interrupter and stored-energy spring that hasthe capability of interrupting magnetizing and loadcurrent within the ratings shown in Table C.l. They aredesigned and tested to comply with the performancerequirements of ANSI Specification G37.57 and C37.58.The IC1074 600-ampere drawout switch is designed forstab connection at line and load terminals. This switchmust be fused. Current-limiting fuses are available up toa continuous rating of 630 amperes for installation inthe switch.

c

Figure C.1600-ampere drawout load-break switch

The switch is designed to accommodate the bolt-onversion of the current-limiting fuse, but clip mountingis available. Construction may be either one- or two-high,with one-high in a rollout design instead of drawout.Either two switches or a combination switch and 5kV air-break starter can be mounted in a two-high enclosure.

The IC1074 stationary switch (600- or 1200-ampere) isdesigned for mounting in one-high construction only. Itcontains line- and load-terminal pads for bolting incom-ing and outgoing conductors directly to the switch. Itmay be supplied fused or unfused. If supplied as anunfused switch, an upstream circuit breaker with instan-taneous trips must be available to coordinate with switchcapabilities — or the switch must be supplied with keylock capabilities — for all of the Limitamp starters in the

Cl



GE Medium VoltageMotor Control 5kV Load-Break Switches

Table C.1 IC1074 Load-break Switch Technical Specifications

1200-Ampere Stationary Switch(Fused or Unfused)

600-Ampere Stationary Switch(Fused or Unfused)

600-Ampere Drawout Switch (Fuse)Type

Ratings4760 volts4760 volts4760 voltsMaximum nominal rating

Unfused ratingVented enclosureNon-vented enclosure

Fused ratingVented enclosureNon-vented enclosure

Make/Break rating

Fault-closing rating (asym)FusedUnfused

Momentary rating (asym)Unfused

Basic impulse level (BIL)

Short-circuitinterrupting capacity (fused)

2400 volts4800 volts

1200 amperes1020 amperes


N/Ac N/A


1200 amperes


600 amperes


600 amperes

61,000 amperes61,000 amperes

61,000 amperes61,000 amperes

61,000 amperesN/A

61,000 amperes61,000 amperesN/A60 kV60 kV60 kV

200 mVA (sym)400 mVA (sym)



DimensionsDimensions in inches

(WxHxD)Dimensions in inches

(W x H x D)Dimensions in inches

(WxHxD)

38 x 90 x 3038 x 90 x 3034 x 90 x 3042 x 90 x 3044 x 90 x 30

One-high constructionOne-high construction (option)Two-high construction

N/AN/AN/AN/A

Cable space2-500 kcmil per phase with or

without stress cones

2-500 kcmil per phase with orwithout stress cones



N/AIncoming 38”-wide case

N/AOutgoing 38”-wide case

Incoming (for bus only)34”-wide case N/AN/A2-500 kcmil per phase

without stress cones1-500 kcmil per phase

with stress cones2-750 kcmil per phase with or

without stress cones1-500 kcmil per phase with or


N/AN/A42”-wide case


Outgoing34”-wide case N/A1-500 kcmil per phase with or




N/A



C2



GE Medium VoltageMotor Control Incoming Line

CABLE-ENTRANCE COMPARTMENTWhen incoming cable exceeds limits shown in the cablesize limits tables, an optional cable-entrance compart-ment is required.

TRANSITION COMPARTMENTLimitamp control can be close-coupled to transformersand switchgear by a transition compartment to make acontinuous lineup. The transition compartment isnormally 22 inches wide; however, this can vary. SeeTable D.l.

BUS ENTRANCE COMPARTMENTBus entrance compartments are required in all caseswhere power is fed to the controller lineup by means ofbus. See Table D.l.

CABLE TERMINALSTerminal lugs for both line and load cables are notsupplied unless specified.

Clamp-type lugs or NEMA 2-hole compression-type lugscan be supplied as options.The customer must specify the number and size cablewhen lugs are to be supplied by GE.Where aluminum cable is to be used, special attentionmust be given to terminal selection.

HIGH-RESISTANCE GROUNDING EQUIPMENTIC9181 high-resistance grounding equipment can bemounted in an enclosure which will match and line upwith Limitamp dimensions and bus location.For description of high-resistance grounding equipment,refer to GE publication GEP-345.Note: Order GEP-345 from:

General Electric CompanyDrive Systems Department1501 Roanoke Blvd.Salem, VA 24153

D1



GE Medium VoltageMotor Control Incoming Line

Table D.1 General Guidelines for Incoming Line

Enclosure Width Typical Device DevicesThat Can Be Included

MaximumCable Size per Phase

Incoming Line

Top Entry4-500 kcmil

Cable CompartmentVM, VMS, 2 stationary PTs,

lightning arresters and surgecapacitors

22”

All of the above plus 3 CTs, AMand AMS

4-750 kcmil 32”Cable Compartment

All of the above plus D/0 PTs canreplace the stationary PTs.

1 D/0 CPT can be mounted.

4-750 kcmil 38”Cable Compartment

Cable Compartment Bottom EntrySame as top entry except a D/O

CPT cannot be mountedin the enclosure

Same as 32”-wide cablecompartment

Bus Entrance Compartment N/A 32”

VM, VMS,2 stationary PTs:

lightning arresters and asurge capacitor

Transition to GE Switchgear N/A 22”

Accessories cannot be mounted intransformer transition.

Additional auxiliary enclosureis required.

22”Transition to GE Transformer N/A

AM, AMS, 3-CTs,2-stationary

PTs, VM, VMS

38”Load-break SwitchFused or Unfused

2-500 kcmil top or bottom

Same as 38” switch pluslightning arresters,surge

capacitors and switchgear relaycan be mounted in the 22" wide

enclosure

Load-break SwitchFused or Unfused

2-500 kcmil top or bottom 38" and22” auxiliary enclosure

Same as 38” switch exceptD/O PTs can

be mounted in the auxiliaryenclosure plus switchgear relays

Load-break SwitchFused or Unfused

2-500 kcmil top or bottom 38” and38” auxiliary enclosure

D2



GE Medium VoltageMotor Control Enclosures

ENCLOSURES foot. Exterior finish is applied by an electro-static powdercoat process (polyester based).NEMA TYPE 1 — GENERAL PURPOSE

The NEMA Type 1 is the standard Limitamp enclosuredesigned primarily to prevent accidental contact withcontrol apparatus. This enclosure is suitable for generalpurpose indoor applications with normal atmospheres.For CR194 two-high design with vented enclosures, add2Vi” to the height.

NEMA TYPE 4 — WATERTIGHTThis enclosure must withstand the hose test as describedin NEMA standards and must preclude the entry of waterunder such test. It is intended for use in installationssuch as dairies or paper mills where cleaning is donewith hoses.

Strip heaters are furnished.NEMA TYPE 1A — GASKETEDThe NEMA Type 1A rubber-gasketed enclosure is a dust-resistant enclosure (not dust-tight), designed to giveprotection against dust, and when control devices areproperly selected, to give proper operation in a dustyatmosphere. It is recommended for all moderately dustyatmospheres, especially in those industries whose dustare abrasive, conductive, or form high-resistance contacts.NEMA Type 1A rubber-gasketed enclosures are not pro-vided with steel bottoms. It is expected that the case willsit on concrete, effectively sealing the bottom against dust.

NEMA TYPE 12 — DUSTTIGHTThese cases are designed to meet the requirements ofindustrial locations where protection is required againstentrance of fibers and flying lint, dust, dirt, light splash-ings, seepage dripping and external condensation ofnon-corrosive liquids.Typical requirements for NEMA 12 are:

•A gasketed cover that is hinged to swing horizontally,and held in place with screws, bolts or other suitablefasteners.

•No open holes through the enclosure. All openings aresealed with gasketed cover plates.

•No conduit knockouts or knockout openings.•Steel bottom.

E

NEMA TYPE 2 — DRIPTIGHTThis enclosure is made to protect control apparatusagainst falling moisture or dirt. All openings are rubber-gasketed and provided with doors or covers. It is intend-ed for use in atmospheres where condensation is heavyor where quantities of water are used in a process or forcleaning. (For applications where a hose is to be directedon the equipment from any direction except above, useNEMA Type 4.) Normal instruments, meters and devicesare mounted on the door as in NEMA Type 1. Stripheaters are used only as the application requires them.

INDOOR ENCLOSURE CONSTRUCTIONLimitamp indoor enclosures are manufactured from 12-gauge steel throughout, except for 13-gauge on the rearcovers. For surface preparation, see the Application Datasection.

NEMA TYPE 3R — WEATHER-RESISTANTThese enclosures must be suitable for outdoor installationand offer protection against driving rain and snowstorms, as well as against dust. Limitamp NEMA 3Renclosures are provided with solid-steel bottoms andtops, an overhanging sloping roof and strip heaters,with provisions for future extension.The following types of NEMA 3R enclosures are available:

•NEMA Type 3R, weather-resistant, full-height coverdoor, non-walk-in (42 inches deep by 101 inches high).(Use when a number of devices are on the door.)

•NEMA Type 3R, weather-resistant walk-in (92 inchesdeep by 111K inches high).

Walk-in enclosures allow ample space for inspection andmaintenance of starters within the enclosure.Standard construction is suitable for wind velocities of130 mph and roof loading up to 30 pounds per square

CHOICE OF MOUNTING — INDOORYou may select either back-to-back (60 inches deep)or back-to-wall (30-inches deep) mounting, letting youarrange control lineups to your own floor space andapplication requirements.

ffffljFP ?JBack-to-back mounting

MU:»

IJFDFJI-'JBack-to-wall mounting

r[•

E1




Table E.2 Enclosure featuresTable E.1Enclosure dimensions

NEMA 3R Walk-in92” deep

Description NEMA 3R Non-walk-in42” deep

Type PageDescription

CR194 Vacuum Stationary and Drawout,Bolted Construction Strip heater Standard (D Standard <D

Option StandardThermostat400A, 2-high, 36” wide E4

StandardReceptacle Option400A, 2-high, 40” wide E5

StandardCR194 Vacuum Stationary, Welded Construction Incandescent light StandardNEMA 1motor

startersStandardUndercoat Standard400A, 1-high, 26” wide E6

OptionDoor stops Standard400A, 1-high, 34” wide E7

StandardFloor sills Standard800A,1-high, 48” wide E8

E © In starter only

© One in starter, one in aisle

LIMITAMP BUS SYSTEMSAC power bus is used for conducting power throughouta group of starters joined together in a lineup. Incomingpower cable can be terminated at one or more points inthe lineup and the power bus employed to distributepower throughout the length of the group.

This bus is available in ratings of 1000 and 2000 amperesand may be tin-plated copper, silver-plated copper orbare copper. For higher ratings refer to factory. Deratingis necessary in certain applications. The horizontal buscompartment is located within the standard 90-inch-highenclosure in the same position as in current andprevious air-break designs, dating back to 1960, makingall compatible. Limitamp horizontal bus is rated 60kVbasic impulse level (1.2 x 50 p sec wave) . Mechanicalstrength under short-circuit currents is 50 kA RMSsymmetrical.

CR7160 Air-break Drawout, Welded Construction

400A,1-high, 34” wide E9

400A, 2-high, 44” wide E10

400A, 3-high, 44” wide E11

700A, 1-high, 42” wide E12

CR194 400A and 800A,1-high, non-walk-in E13

CR194 400A, 1-high, walk-in E14

NEMA 3Rmotor

starters

CR194 800A, 1-high, walk-in E15

CR7160 4001-and 2-high, non-walk-in E16

CR7160 400A 1- and 2-high, walk- in E17

CR7160 700A, 1 high, walk-in E18

E19Estimated widths

IC1074load breakswitches

E20NEMA 1, 38” wide

NEMA 3R, 42” deep, non-walk-in E21

GROUND BUSGround bus in a Limitamp lineup provides a low-resis-tance path between ground connection points in anygroup of controllers. This low-resistance path is a bus barand is for the purpose of decreasing to a low value a pos-sibly hazardous voltage difference between groundingpoints in the starter group. These voltage differenceswould occur under ground fault conditions if a low-resis-tance ground path were not provided.The ground bus is normally located near the AC powerbus on the inside rear of the enclosure. The bus providesa common termination point for all ground connectionswithin each controller, including the enclosing case, andoffers a convenient terminal for incoming ground cables.It should be noted that the customer must make a suit-

NEMA 3R, 92” deep, walk-in E22

NAMEPLATESEnclosure nameplates are provided for identification onfront panels and internally for identifying units and devices.

Standard unit nameplates are 1” x 3” 2-ply thermoplastic,black letters on white background or white letters onblack background.Front panel device nameplates are x/t x IV2”thermoplastic.Internal device nameplates are fabric type with adhesivebacking.Thermoplastic nameplates are fastened with corrosion-resistant steel screws.

E2




suitable ground connection to the bus in order to makeit effective. When ground bus is not provided, theground connection may be made to the ground studprovided.Extensions to the ground bus are located in the incom-ing line cable compartment and near the load termina-tion points in the high-voltage compartment to makegrounding cable shield terminations easy to accomplish.

Table E.3 Bus cross section

Bus type Rating Cross section

1000A®Main bus K” x 3” copper

2000A (2) V” x 3” copper

Vertical bus 400A Y” x Y copper

700A W ' x V copper

800A Z" x 3” copperCONTROL BUSControl bus is a convenient means of conducting controlpower throughout a group of controllers joined togetherin a lineup. Conductors from a single control powersource may be terminated in one unit in the lineup andthe control bus employed to distribute the power to eachunit of the grouped lineup. Control bus may also be usedto distribute the power from a single control transformerlocated in the lineup.Control bus normally consists of properly sized insulatedwire conductors run between terminal boards.Standard voltage for control bus is 120 or 240 volts ACand maximum current rating is determined by applica-tion, such as total present and anticipated future load.

Ground bus 400A %" x 2” copper

Z” x 2” copper600A

E© Refer to factory for 1200A applications.

POTENTIAL BUSPotential bus is a means of distributing a common sourceof low voltage throughout the lineup for metering andinstrumentation. Potential bus consists of properly sizedwire connected between terminal boards typicallymounted on the top inside of enclosure. Maximumvoltage is 600 volts.

INSULATED POWER BUSInsulating the AC power bus reduces the possibility ofbus faults from causes such as surge voltages, ionizedvapors, falling objects ( tools, etc. ) , ground tapes, etc. Italso prevents corrosion and oxidation of the bus and itshardware.The standard power bus consists of bar conductors oninsulator supports. Insulation for the conductors can beprovided, and it may consist of various types of insulat-ing material, such as 130°C HV rubber splicing tape orother material dictated by availability and individual jobrequirements.The CR194 two-high Vacuum Equipment design usesepoxy-insulated main and vertical bus as standard.

E3




ENCLOSURE OUTLINE DIMENSIONS2400-4160 VOLTSCR194 400-ampere Vacuum Stationary or Drawout (Two-high)Standard 36” Wide

8.0

i®VLOWER UNITUPPER UNITi t

i®]2.5 2.3] 1

t FRONT T4.0 1TOP VIEW

uM-

6.84.0*

E X k2.3-WC4.5X

D 6.5Eftm 4T3J

+ U-10.6-#

X5.9-tf ,. u D) UPPER1-TUNITLI 5.4

6.5 +T2L2 436.5L3 +

7FT 6- 1/4n31.3 LOWER6.54- ^Tl

T2 |7 I+ »7.3«

U-10.6-*

11.752+T210.9

121.2 lI

2-HI30 36

FRONT VIEWL.H. SIDE VIEW

A - 2000 «

jUh5.03.2-»Notes:

UPPER UNIT *

LOWER UNIT1B1 — AC Power BusL IT:® : 2C — Control Lead Terminal Board

6.5i 3.0(TYP)<3>lD — Motor Lead Terminal ConnectionT F!°NTT 3.0-I

CTYP]t1E — Ground Bus Terminal Connection 10.2 4.0

4.0 FLOOR PLANG — Space Required to Open Doors 90°

H — Four-foot Aisle for Contactor Removal

J — Mounting Holes for W Diameter Anchor Bolts

M — Recommended Position for Incoming Motor Conduit

N — Recommended Position for Incoming Control Conduit

* — Indicates Terminal Location — Approximate for Cable Length

A — Approximate Weight

E4




ENCLOSURE OUTLINE DIMENSIONS2400-4160 VOLTSCR194 400-ampere Vacuum Stationary or Drawout (Two-high)Optional 40” Wide

?uh10.02.3-*1 LOWER UNIT

UPPER UNITi it

l®! 2.5172.31 ®--a4 I

T FRONT T4.0 1

TOP VIEW6.64-.0-W

EX6.3-ejr

, »4.5

% +T3;iKii+ U-10.6-*

6.55.9-* f

E XL £) UPPER1-T:UNITLI 5.4

6.5 +T2L2 436.5L3 «1-

7FT 6-1/4

-- +T1n3[

3 .3 LOWER6.5 UNIT

T2 \ y .+> 1*7.3«L-10.6-*

11.752+T216.9

I21.2 I

i I2-HI

30 40FRONT VIEWL.H. SIDE VIEW

A - 2000 *H-trNotes: 3.2-*

UPPER UNIT *

LOWER UNITB1 — AC Power Bus j ®K

L.._JfC — Control Lead Terminal Board

I® I 2176.5 rft 3.0CTYP)ID — Motor Lead Terminal Connection (N> ^CU i

T FRONT|3i0 J ( *CTYP)iyE — Ground Bus Terminal Connection 10.2 8

4.0-»G — Space Required to Open Doors 90° FLOOR PLAN


J — Mounting Holes for %” Diameter Anchor Bolts





E5




ENCLOSURE OUTLINE DIMENSIONS2400-4160 VOLTSCR194 400-ampere Vacuum Stationary (One-high)Standard 26» Wide 5-1/4

1-1/42

f'K4-1/2-*!0:; ; 27- 1/2

13- 1/211-1/4

7-1/24 tFRONT

1-1/4TOP VIEW

E A3-1/2-5

TX

5-5/8- 34LI

\[L1•>L2=-VL3

6-1/2L2 +

6-1/2L3

4-1/4—j U-5 7FT 6-1/4

68-13/16 zo S-l/2 9-1/2cnu.52 -1/2 i |«— -7-3/16 9-1/2t-r+

T 9-1/818-1/4 17“* [— 2-11/1614-1/2 r251Notes: ±

30 26+B1— AC Power Bus (if ordered) L.H. SIDE VIEW FRONT VIEW

1-1/21-1/2 —| 23C — Control Lead Terminal Board A- 1000 * 2-1/42-3/16D — Motor Lead Terminal Connection H* 13—E — Ground Bus Terminal Connection 4

F — Ground Terminal Connection (if ordered)

G — Space Required to Open Doors 90°25-5/8 30®:i2 5k*1-1/2—

H — Four-foot Aisle for Contactor Removal 6

5M_| T »T 73/i6J — Mounting Holes for A” Diameter Anchor Bolts

K — Space Available for Incoming Conduit FLOOR PLAN



P — Recommended Position for Incoming Power Conduit



E6




ENCLOSURE OUTLINE DIMENSIONS2400-4160 VOLTS5-1/4CM94 400-ampere Vacuum Stationary (One-high)

Optional 34» Wide 1-1/4i

27-1/211-1/4 :^3- l /2:®i ii ~

7-1/2 • t

* t TFRONT1-1/4

TOP VIEWZ

3-1/2-*5

T5-5/8-* 34LI >fL1

6-1/2r^L2L2

6-1/2L3 '- -H- 13

W-5 7FT 6-1/4K“B60-13/16 z *o S- l /2 s- 1/2ccu_

*9-1/2 9- J/27-3/16

f9-1/810-1/4 17- 1—2-11/16i i33

Notes: 34L.H. SIDE VIEW FRONT VIEWB1 — AC Power Bus

1-1/2-W •31 1-1/22-3/16

*C — Control Lead Terminal Board A- 1300 * 2-1/4

h12~il3-*D — Motor Lead Terminal Connection, »

E — Ground Bus Terminal Connection ® i , 7k iF — Ground Terminal Connection (if ordered)

G — Space Required to Open Doors 90°25-5/0 30<en1- 1/2-* ,- 12 ^•1 *H — Four-foot Aisle for Contactor Removal

k.3HT N7-3/,6J — Mounting Holes for 1A" Diameter Anchor BoltsFLOOR PLANK — Space Available for Incoming Conduit




* — Indicates Terminal Location —- Approximate for Cable Length


E7




ENCLOSURE OUTLINE DIMENSIONS2400-4160 VOLTSCR194 800-ampere Vacuum Stationary (One-high)Standard 48» Wide 2-» 13-3/8

1-3/16A

r

13-3/8©VJEi 4-13/16

5-3/8m] 4

TL JHP 1-3/16TOP VIEW

FRONT

E «-4-3/16 i1 3-1/2 225-5/0 iI.J 4-1/8

fl-3/16LI rr

®\^\L3

4-3/16-»

6-1/2L2 + 21-I •-5-1/26-1/2 uL3 +

L._j 7FT 6

15T2 74 T268 4/5

52 T 1.T31 T3

17-»27-3/4

1Notes:

4830FRONT VIEWB1 — AC Power Bus (if ordered) L.H'SIDE VIEW

A - 1500 «C — Control Lead Terminal Board -H h- 1-5/89-3/16 yH h-r y

> -»-r-T rv~A>«-»<s> ili © ilL i-L

D — Motor Lead Terminal Connection2-3/16

E — Ground Bus Terminal Connection


G — Space Required to Open Doors 90°4-5/16

< T30 25-5/8 14-1/211 3H — Four-foot Aisle for Contactor Removal 1-5/164-3/8J — Mounting Holes for Jf Diameter Anchor Bolts T FRONT

12-5/8T

2-3/16K — Space Available for Incoming Conduit





1-1/2451-1/2-»FLOOR PLAN


E8




ENCLOSURE OUTLINE DIMENSIONS 2400-4160 VOLTSCR7160 400-ampere Air-break Drawout (One-high)Standard 34” Wide

u5-1/4 1-1/42 i

rw-‘

4

m1 4-1/24-1/2 t' 7-1/2

!©|3-l/2M-*- 1IT t FRONT

1-1/4TOP VIEW

C EX

3-1/25

Tr

5-5/8 X34 i

LI i «6-1/2 II '+L2 + ii6-1/2 iL3 + L J+'.j

-H 4-1/47FT 6-1/46 F

T1•-4-5/8 9

T2+52 9Eu

_T3+ +

TNotes: 21i rIB1 — AC Power Bus (if ordered)3430C — Control Lead Terminal Board 6

FRONT VIEWL.H. SIDE VIEWD — Motor Lead Terminal Connection



G — Space Required to Open Doors 90°A- 1300 #

2-1/2H — Four-foot Aisle for Contactor Removal 21-3/4

2-1/2J — Mounting Holes for 1A” Diameter Anchor Bolts4-J/4K — Space Available for Incoming Conduit





FRONT TU1-5/0 FLOOR PLAN

A —- Approximate Weight

E9




ENCLOSURE OUTLINE DIMENSIONS 2400-4160 VOLTSCR7160 400-ampere Air-break Drawout (Two-high)Standard 44” Wide

7-1/22-» 1

tl-i/i-14-1/2 i

iVfc/J LOWER

L i®i± mI\foVi/z 17-1/1

1-1/2

\ 1-1 /2t fFRONT tN UPPERTOP VIEW UNIT

% 2-1/8-*CE r ~,

65-5/0 E4-1/2-*L ’2-1/2

6^,6^ * H-i-i/iDLi6-1/2

+L2 Te6-1/2 6-1/2L3 + +H h : +2-1/2- 7FT 6-1/4r*

IU.D+

*1+i.J52 50 4-1/254 W Ei i32

6^ 11%23i 4h-I 16Notes: i 1 i TG ixB1 — AC Power Bus 30 44

FRONT VIEWC — Control Lead Terminal Board L.H. SIDE VIEWA- 2000 * JD — Motor Lead Terminal Connection

6-1/4E — Ground Bus Terminal Connection 2-1/2K) 2-7/8 11F — Ground Terminal Connection (if ordered) /©IF 1-11/16

4-1/26

G — Space Required to Open Doors 90° LOWERUNIT * rt: ® iV2 £

< 1 iA14-3/0H — Aisle for Contactor Removal

l m 6-1/2a li P yT i—1J — Mounting Holes for %” Diameter Anchor Bolts

K — Space Available for Incoming Conduit


i..J t\FR0NT f® 2-1/2

TT 5-3/01-1/27-5/0 UPPER

UNITN — Recommended Position for Incoming Control Conduit FLOOR PLAN




E10




ENCLOSURE OUTLINE DIMENSIONS2400-4160 VOLTSCR7160 400-ampere Air-break Drawout (Three-high)Standard 44” Wide

10- 1/27 l-l/4

2 i! ©i ?6-3/4

14-3/0

Ti m

4-^/ST4-5/8

j®?Kg) 1 2-3/4i

10-1/84-3/9 T

^g) T FRONTTOP VIEW

6-1/29-5/8

E4- 1/2-H

XE9-1/4mX

— uvp-*LI6-V5 22

29L2 +6-^ h 4-1/4L3 o

O' +HIL n 7-1/211 • (+ + H 7FT 6• i« HiCJ5-5/8

1852 />Notes:

29 7-1/22U,B1 — AC Power Busm I

C — Control Lead Terminal Board 19-1/411I6-1/2M Li I u.l iD — Motor Lead Terminal Connection j 2-1/8 k 5- 1/2 3-HI30 TE — Ground Bus Terminal Connection 44L.H. SIDE VIEW

A- 2400 «FRONT VIEWF — Ground Terminal Connection (if ordered)

G — Space Required to Open Doors 90° U—*-8-3/4 Q>

1 :®LJTi (3)!14-3/8t 2-1/2

T •1/2 0

H — Aisle for Contactor Removal7

J — Mounting Holes for A” Diameter Anchor Bolts



2-1/2I 4-5/8

4-5/8 ft

i.N — Recommended Position for Incoming Control Conduit TFRONTT • 4-5/8

*-2-1/410-1/8

dP — Recommended Position for Incoming Power Conduit

* — Indicates Terminal Location— Approximate for Cable Length


E11




ENCLOSURE OUTLINE DIMENSIONS 2400-4160 VOLTSCR7160 700-ampere Air-break Drawout (One-high)Standard 42” Wide

13 . l-l/^2 i] f f

® ®!14-3/4

-1/2

-1/24t FRONT

1-1/4TOP VIEW

Ecr 1-12u Li

•T10-1/2LI

6-1/2L2 o6-1/2 ccL3 * u.

7FT 6-1/4+T1.3+T3T

16 RTZj,52

10 »Notes:

25 HB1 — AC Power Bus (if ordered) ixC — Control Lead Terminal Board

30 42L.H.SIDE VIEW

A - 1500 *FRONT VIEWD — Motor Lead Terminal Connection

E — Ground Bus Terminal Connection KF — Ground Terminal Connection (if ordered)

G — Space Required to Open Doors 90°H5 10-1/4 X

4-1/2 O TeH* SEX© I

t o2-1/2H — Four-foot Aisle for Contactor Removal t i

J — Mounting Holes for Diameter Anchor Bolts



13-1/2 1 7-1/4 2-1/2

43=3 % iT \ TFRONT

1-1/25-1/2 K-0-1/4

FLOOR PLANN — Recommended Position for Incoming Control Conduit


* — indicates Terminal Location— Approximate for Cable Length


E12




ENCLOSURE OUTLINE DIMENSIONS 2400-4160 VOLTSCR194 Vacuum 400-ampere and 800-ampere Vacuum Stationary (One-high)NEMA 3R 42” Deep

1 H1-400A-26W

42DSIDE3-1/2 —»5

T/5-5/9- 3»

LIU6-1/2

+ 4 '* L2126- 1/2 '•' •La

k-5- K6

L34-1/4 -«| 7FT 0* 6-1/2

6-1/269-13/16+FRONTF R O N T 7-3/16 9-1/2 9-1/20FT 6-3/*APPROX

OF O F t1N51KHim 3 52 iu. 9-1/2 9-i/2CNCL

‘9-t*VACUUM I-HI

-9-1/0.25,-14- 1/252 1 P1 E26—HFRONT VIEW

30L.H. SIDE VIEW

i-i/2-i »-1-1/2A- 1000 «2-3/16jj | I 1 /0J*1-3/4

•k—4»k 21-5/9 -44 »3-* 13/4-

11-1/2

^ r /o:.~~rj 25-5/0

Qy « 4

4230* H sioe VIEW 1 42

- 2-3/ 16 9"i/2 12i1H1GH-800A-48W TFRONT

2- 1/2/ -j~* j 9-^/?6 FLOOR PLAN1 H1GH-400A-34W

*-4-3/16w1 223-1/2- »5-5/9- r *v ':y°-5-1/2

5

T3-1/2-Ll

*1

/.!<S>—C.

•si6-1/2 1L26- 1/2

L3 + 5-5/0L.- 344-3/16- 7FT 5 LI 1 LIH— - 11- 1 /2!T2 74 16-1/2S-l/2

L2 *L2

iu.10-1/2 L3 •+L3W-4 1/4

+4-1/4 —|52 3 7FT 66 k* k-6

40- 59- J 3/16 :r1 *-"\r:17- 7-3/16 9-1/2 g- j / j

1 t52 ps.i 9- 1/29-1/249

L.H.SIDE VIEW k— -9-1/0TFRONT VIEW10-1/4 ,714-1/2 k-2-11/16

VACUUM 1-HIA 1 r9-3/0-H H-1-7/16—j [*- I

i"

© IT f cBT'j —7i A i'4-,/2 2V J a?r®.J! -J - 1-5.• 4-3/0 4

A - 1500 • i2-7/162-3/16 30—HL.H. SIDE VIEW

1 K—34FRONT VIEW

4-1/4 1- 1/2-H 1-1 /22-3/16A- 1300 « 4- J /430 25-5/0 HH13-‘Ml 1-3/4- <2>— r

\ 1TT 2- 1/2 Q2-3/16 12 25-5/0 30* [ FRONT 4212-9/16

1-1/2451-1/2 T F t2-3/16 9-i/2 '2Notes: FLOOR PLAN

1TFRONT

2-1/2B1 — AC Power Bus (if ordered) FLOOR PLAN



C — Control Lead Terminal Board

D — Motor Lead Terminal Connection

N — Recommended Position for Incoming Control ConduitE — Ground Bus Terminal Connection

P — Recommended Position for Incoming Power ConduitF — Ground Terminal Connection (if ordered)

G — Space Required to Open Doors 90° W — Lifting Angle

* — Indicates Terminal Location — Approximate for Cable LengthH — Four-foot Aisle for Contactor Removal

A — Approximate WeightJ *— Mounting Holes for W Diameter Anchor Bolts

E13




ENCLOSURE OUTLINE DIMENSIONS2400-4160 VOLTSCR194 400-ampere Vacuum Stationary (One-high)NEMA 3R 92” Deep Walk-in

1 H1-400A-26W1H1-400A-34W ££,7 3- 1/23

T34

/13-1/2-*77 5

TI tefir5-5/0-*I LI5-5/9-

L3————6-1 /2i

* * +

34

1L2I + +L26- 1 /2L3 *'+L3.4

' rh U-5-11-1/2L> « 7FT 6+ f*-6

iu.H

•-4-1/4 60-13/ 165 — 7FT 6 9-1 /2 g-i/26 F7

iri 52•-4-5/0 M/2-* H*7*3'16 9‘1/2 9-1/27r £j9.,/910-1 /4 J 7 -* k-i/2

25 I | - h-2-11/161 1 VACUUM I—Hi

959-1/2 + T252E 3

TT314-1/240 121 16X 41 1 FRONT VIEW1 HI L.H. SIDE VIEW

34

L.H. SIDE VIEWA- 2300 •

A- 1300 • Stl- / ZTFRONT VIEH 2-1/4

2-3/16 Tii fa7-1/2-T4r 1-1/2-* 30;<8^ -» V£Utr g>j 1230

21-3/4

kJTj

I

L i T4

01-5/0-6- t 7FT 0

7FT 0

i -j* * Z>i

92-3/16 \ TT^ fos lNotes: TFRONT

FLOOR PLAN2-3/16SIDET FRONT

FLOOR PLANB1 — AC Power Bus (if ordered)i.


D — Motor Lead Terminal Connection 2-H I-2



G — Space Required to Open Doors 90°9FT 3-1/4

0FT 5-1/4 7FT 6


J — Mounting Holes for %” Diameter Anchor Bolts


7 Hh-2 - 41-2 -Hl~y 31 +—— 31 +*-25-5/0-4I/16-* b- -4 *-2-3/16


N — Recommended Position for Incoming Control Conduit 30 —•7FT 0

R.H. SIDE VIEWSPACE REO’D TO OPEN DOORS 90 DEGREES

P — Recommended Position for incoming Power Conduit

Q — Recommended Position for Incoming Feeder Conduit

W — Lifting Angle



E14




ENCLOSURE OUTLINE DIMENSIONS 2400-4160 VOLTSCR194 800-ampere Vacuum Stationary (One-high),NEMA 3R 92” Deep Walk-in

six 1H1-800A-48W

f IF* il a10 // ly/ie •-4-3/16 I3-1/2-••11 225-5/9-* 1•>42-H •-9h“2 LI T6- 3 /2

L2 21

1«-5-!/26- 1 /2 \L3 El.. 7PT ]d4-3/16-« 7FT 6

11-1 /2749FT 3-1/4

0FT 5-1/4 67FT 6

40

..J

4030FRONT VIEWi.H.sioe VIEW

A - 1500 «J 1i 6-3/96T- 4K2 Hfr -2

3,—^2,-ve-J^4-3/4

4-1/162-3/162-3/16

30 fjBTJr <ET' “

7FT 0R.H. SIX VIEW

SPACE REQ'D TO OPEN DOORS 90 XGREES

f r •<-»i ®30

Jl-V- l/2 3: ® : iJJU •-1-5/16i

12-5/0

Notes:

B1 — AC Power Bus (it ordered)

C — Control Lead Terminal Board M — Recommended Position for Incoming Motor Conduit

N — Recommended Position for Incoming Control ConduitD — Motor Lead Terminal Connection

P — Recommended Position for Incoming Power ConduitE — Ground Bus Terminal Connection


G — Space Required to Open Doors 90°

W — Lifting Angle


H — Four-foot Aisle for Contactor Removal A— Approximate Weight

J — Mounting Holes for 1A” Diameter Anchor Bolts


E15




ENCLOSURE OUTLINE DIMENSIONS2400-4160 VOLTSCR7160 400-ampere Air-break Drawout (One- & Two-high)NEMA 3R 42” Deep

1H1-400A-34Wi

l42DSIDE lit 3-1/2£

3-3/8-Outline Drawing34

M8LJ

L3^-L5-5/8

_L+

- 11- 1/2-M •-4-1 /4r 7FT 6sF+ T1* -H •-4-5/88- 1/2

8-1/2959-1/2 ++ 52FRONTFRONT i8FT 6-3/4

APPROX9OF OF

NEm 3 INSloe T3CNCL

21 16r 4 1II-Ht52 • 30 • -«!

L.H. SIDE VIEWA - 1000 •

34E &FRONT VIEW

A-*n==fnT•44 N- .®i l

!®;Ur•It- 1/83/4-*

11-1/22-1/2

21-3/44k 21-5/8 3042 2-1/2 42

P H SIDE VIEW 4- /4

'-5/9ET3 121

TFRONT1H1-700A-42W 2- J /2FLOOR PLAN

r* 2 H1-400A-44W

i 2-1/8—£ >3r *.+ -45KLl' : 610-1/2 5-5/8-«6-1/2

5-5/8

4*H22.L2 4-1/2 —\ J2- 1 /2- W.:I +J- >" nU®

V 4-1/4 GLl

* fjg^®7FT 6 6- 1/2L2

6- 1/2 6-1/2L3 +i-2- 1 /2- 7FT 6

s LOWER10 wii i48

i

fi52 50

16

32. ' '23 6% 11%42 i•— 30 —• iFRONT VIEWL.H.SIDE VIEW i - - J i

1 2-HIIA - 1800 • 10-1/43 44ii4-172 FRONT VIEW

®o T L.H. SIDE VIEWA - 2300 «

T8 îEt."'Ty-2-1/2

TT 30 <£X 2-^87® }13-1/2 1 2-1/2 421 m i -4 •-1- 11/ 1 S

4-1/2t M IT n1-1/2—5- 1/2-8-1/4 - —1 h-: ® ; V2 t LJSJJT l 2^2;®tfij Tr*— 7-5/0 T

12 14-3/8 30142^6-1/2T FRONT I2-1/2

FLOOR PLAN r5-3/8 12Notes: 1-1/2-» 1 i

TFRONT2-1/2

FLOOR PLANUPPERUNITB1 — AC Power Bus (if ordered)




D — Motor Lead Terminal Connection

N — Recommended Position for Incoming Control ConduitE — Ground Bus Terminal Connection

P — Recommended Position for Incoming Power ConduitF — Ground Terminal Connection (if ordered)

W — Lifting Angle




A — Approximate WeightJ — Mounting Holes for JT Diameter Anchor Bolts

E16




ENCLOSURE OUTLINE DIMENSIONS 2400-4160 VOLTSCR7160 700-ampere Air-break Drawout (One-high)NEMA 3R 92” Deep Walk-in

sioe 1H1-700A-42W

1L

I$4- 122-H 11— 2

» 1

*10- 1/26-1/2

L2$-1/213 +

7FT 65-5/0

9FT 3-1/4 E59-1/28FT 5-1/«* 7FT 61048

i

42 -30L.H.SIDE VIEW

A -1500 - FRONT VIEW

10-1/45l ikJl 6-3/064-1/2- iH-2 Hf -2 T

31 4— 25-5/0 —f-4 -2-3/

f T8 2-3/16ft2-3/16 T30 30

13-1/2 . 7

1 hr7FT 9R.H. SIDE VIEW

SPACE REO'D TO OPEN DOORS 90 DEGREES T5-1/2- •9-1/4-

1-1/2- 7FT 8N

Notes:

B1 — AC Power Bus (if ordered)

-i4C — Control Lead Terminal Board5*"-®9-3/16D — Motor Lead Terminal Connection *T FRONT

2-3/ 16E — Ground Bus Terminal ConnectionFLOOR PLAN




J — Mounting Holes for Diameter Anchor Bolts





W — Lifting Angle

* — Indicates Terminal Location— Approximate for Cable Length


E17




ENCLOSURE OUTLINE DIMENSIONSLimitamp Non-walk-in & Walk-inNEMA 3R

4 REMOVABLE LIFTING ANGLE

I 4 REMOVABLE LIFTING ANGLE2

2

J 2

•FT.5

•FT 5

4242

NEMA 3R non-walk-in enclosure 42” deepNEMA 3R non-walk-in enclosure 42” deep

4/—4' REMOVABLE LIFTING ANGLE

s 22*1

•FT 3 »•FT.J* 7FT.S•FT. 5%

A“T **-CKTiStd-21>‘

n!r2 -iV*-|p±_ w -jts- w I•2S«-h-v 7FT.S —R H SIDC VICW•RACE RCQ'O TO OPEN DOORS BO OEGREESc

FRONT VICW

NEMA 3R non-walk-in enclosure 92” deep

E18




ENCLOSURE OUTLINE DIMENSIONS2400-4160 VOLTSIC1074 Bolted Load Break SwitchNEMA 1 Standard 38” Wide

T<gi121 *

1 l!®i6- 1/4

T N-lFRONT4

TOP VIEW

•7-1/27-1/27-7/0*<Q>— +

+ * 3-?

rBOLTEDSWITCH

7FT 6-1/4FUSESIF USED

6FT 3-1/2

7V ..u4 lM

7-1/2 '3 8

FRONT VIEWA- 1000 *

1

I 2-1/2t30

2-1/29Notes: o

T FRONTFLOOR PLAN** 6 ^

•-1-1/2J — Mounting Holes for 'A” Diameter Anchor Bolts




T — Switch Feeder Terminal Connection

U — Switch Incoming Power Terminal Connection



E19




ENCLOSURE OUTLINE DIMENSIONS2400-4160 VOLTSIC1074 Bolted Load Break SwitchNEMA 3R Standard 38» Wide, 42» Deep

+6-1/26-1/2

+FRONT FRONTE 8FT 6-3/4APPROX

OF OFNEMA 3 INSIDE

ENCL

52

7-1/27-1/2

7-7/8*/-N<B> +T4T%

1/83/4-*11-1/2- 1-3/4 r4k 21-5/8 BOLTED

SWITCH42IR.H. SIDE VIEW

7FT 6FUSESIF USED

6FT 3-1/21/ -1

Notes: _Ly\ - ++ t iB1 — AC Power Bus (if ordered) T 4

T7-1/2E — Ground Bus Terminal Connection38F — Ground Terminal Connection (if ordered)

J — Mounting Holes for W Diameter Anchor Bolts FRONT VIEWA- 1300 *

K — Space Available for Incoming Conduit A¥P — Recommended Position for Incoming Power Conduit

2-1/2

mQ — Recommended Position for Incoming Feeder Conduit c 1030

ft-2-1/242T — Switch Feeder Terminal Connection i 4U — Switch Incoming Power Terminal Connection T

32iW — 4 Inch Removable Lifting Angle TFRONT

2-1/2* — Indicates Terminal Location — Approximate for Cable LengthFLOOR PLAN


E20




ENCLOSURE OUTLINE DIMENSIONS 2400-4160 VOLTSIC1074 Bolted Load Break SwitchNEMA 3R Standard 38” Wide, 92” Deep Walk-in

<

-1/27-

*17-7/0*<S> +TJ2-* *-2T

rBOLTEDSWITCH

E9FT 3-1A 7FT 6FUSESIF USED8FT 5-1/4 7FT 6

6FT 3-1/2

7-1/2 T

38r

] FRONT VIEWA- 2300 *

6-3/8-4}-2 T

•-2-3/16

6T "t2

1/16—• K - — 25-5/8—*2

2-3/1631 311

30 T i i7FT 0R.H. SIDE VIEW

SPACE REQ'D TO OPEN DOORS 90 DEGREES

37 4 30% 10

1-1/2

7FT 8 i

9-3/161 * *Notes:J — Mounting Holes tor Diameter Anchor Bolts




T — Switch Feeder Terminal Connection

U — Switch Incoming Power Terminal Connection* — Indicates Terminal Location — Approximate for Cable Length


FRONT2-3/16

FLOOR PLAN

E21



GE Medium VoltageMotor Control Protection& Control

FUSESIKTRODUCTIONTo protect the motor branch circuit against the damag-ing effects of short circuits, current-limiting power fusesare used in Limitamp control. They interrupt all overcur-rents of magnitude greater than intended for contactorinterruption. On full fault, these fuses start limiting cur-rent within the first lA cycle and interrupt within the firstA cycle. Because they are fast acting, these fuses are easilycoordinated with system protective relaying to give selec-tivity in short-circuit protection.

Standard fuses supplied with Limitamp CR194 Controlare bolt-in type. Clip-in fuses may be supplied in applica-tions where motor full-load current plus service factordoes not exceed 320 amperes, but they must be specifiedby the customer. The blown fuse indicator and the anti-single-phase trip are available with bolt-in fuses only.Motor-starting fuses are current-limiting as indicated inFigure F.l. They melt before the current in the firstmajor loop can reach its peak value when subjected tomelting currents within the current-limiting range.Consequently, the total “let-through” energy involved islow because the fuses operate with such great speed. Thecontactor, current transformers, and overload relays of aLimitamp controller are coordinated with the fuses togive full protection to the system.

A design feature of motor-starting fuses inherently limitsrecovery voltage to safe values, thus protecting controlinsulation.Controller fuses must have sufficient capacity to carrystarting and full-load currents, and yet must interruptfault currents at a desirable low value. They are thereforemade in a number of ratings or sizes so that maximumprotection can be obtained over a range of motor horse-powers.For a given set of motor characteristics, it is usuallypossible to use one of several fuses. The smallest fuseswill normally be furnished. If the load is a fluctuatingone, involving swings of current above full-load, the factshould be noted in specifying a controller so that a fuseone size larger than minimum will be furnished.Transient conditions do not generally affect motor-start-ing fuses since the sand in the fuse conducts heat awayrapidly. If transient currents do not come within 25percent of the minimum melting curve on a time basis,melting will not occur. For example, if the melting curvefor a given size fuse shows melting in 10 seconds at 1000amperes, transient peaks of 1000 amperes would be with-stood repeatedly up to 7.5 seconds duration.

PEAK OF 96,000 AM-PERES WITHOUT FUSE —\

1Ii

4 9R FUSE LIMITS' PEAK CURRENT TO

21,000 AMPERES.'LET-THROUGH; APPROX 1/5THE PEAK CURRENT- WITHOUT THE FUSEÔR 1/25 THE MECHAN-- ICAI STRESS ONPOWER SYSTEM COM-- PONENTS.

iIf ;*\f

i

iiiF 9 T

V 17\

Figure F.1 Current-limiting action of typical fuse.

Motor-starting fuses can be applied on 25-Hertz systemsbut with lower interrupting capacity than for 50- and 60-Hertz systems. Fuse selection is based on full-load andlocked-rotor current.For a lineup of controllers it may be desirable to usefuses larger than minimum size to reduce the variety ofspares required. Such standardization must be specified,however.

BLOWN FUSE TRIP AND BLOWN FUSE INDICATIONThe possibility of having one fuse melt, thereby causing alarge motor to single phase, has inhibited considerationof fuse-contactor-type starters. Although such a conditionis in reality quite unlikely, GE Limitamp Control can beequipped with an optional special mechanism which willdetect a blown fuse and cause the contactor to open.Bolt-on fuses contain button indicators to show a blownfuse. This button indicator can be coupled with ananti-single-phase trip mechanism containing a controlcontact, which, when used in contactor control circuit,can open the contactor to prevent single phasing and/orprovide a blown fuse indication on the front door. Blownfuse indication on the front door is available for CR194equipment only.

F1




SURGE PROTECTIONThe economics of rotating-machine insulation dictatesthat the machines be protected from voltage stressesabove the operating level insofar as is reasonably possi-ble. Overvoltage damages reduce the insulation life.There are many causes of accidental over-voltage whoseeffects may be reduced by protective means. The mostprominent causes are:

1. Lightning.2. Physical contact with higher voltage system.3. Repetitive restrike (intermittent grounds).4. Switching surges.5. Resonance effects in series inductive

capacitance circuits.Switching transients occur in every electrical system. Awell-known phenomenon associated with vacuum inter-rupters is current chop. GE utilizes vacuum interruptersconstructed with widely accepted contact tip materials toprovide low chopping currents.Additional protection against surges for rotatingmachines may be economically attractive for system volt-age installations of 2300 volts and above. This consists ofa surge capacitor and lightning arresters.Lightning arresters reduce the amplitude of the voltageimpulse wave. The surge capacitor further reduces theamplitude — but in addition, reduces the steepness ofthe wave front. It is important to reduce the steepness ofthe surge wave front to keep the turn-to-turn voltagestress in the machine winding to a minimum.To prevent overvoltage in current transformer secondarycircuits during switching, CTs should be provided withThyrite protectors when surge capacitors are installed atmotor terminals.Surge capacitors and arresters should be installed asclose to the machine terminals as possible. Capacitorsand arresters require a 22-inch wide auxiliary enclosureif installed in the controller.

i *

Figure F.2 Anti-single-phase trip mechanism

Blown fuse indicator

F-

s£.f t

Figure F.3 Blown fuse indicator on door

With this feature, fuses are always bolted in place for cor-rect orientation and alignment. In addition to providingmaximum reliability, this feature makes it impossible tomount the fuse in an upside down position which wouldnullify the trip bar operation.

COORDINATION WITH OTHER PROTECTIVEDEVICESWhen Limitamp starters are installed on a given powersystem, it is necessary to coordinate the time-currentcharacteristics of system protective devices with those ofthe starters. Use the time-current curves included in GETime Current Curve No. GES-5000 for this purpose. Itincludes overload-relay tripping curves, fuse-meltingcurves and fuse-clearing time curves.

F2




OVERLOAD RELAYS MULTIFUNCTION SOLID-STATE RELAYSLarge motors on vital drives need accurate protectionagainst overloads, phase unbalance or ground faults.Multifunction solid-state relays are available from GEthat offer total motor protection in one compact pack-age. Basic protective functions such as overtemperature,overload, instantaneous overcurrent, open-phase, phasereversal, phase unbalance, ground-fault, load jam, loadloss and bearing overtemperature protection can beprovided.

Several types of overload relays are used in LimitampControl. Limitamp controllers use thermal-overloadrelays, unless other types are specified.

THERMAL-OVERLOAD RELAYSOverload relays provided in Limitamp control haveinverse-time characteristics and are ambient compensat-ed. Limitamp control utilizes either a thermal-type relayor the solid-state protective relay. These relays, operatingfrom current transformers in the control equipment,carry current proportional to the motor-circuit current.When motor overloads occur, the relay operates to openthe main power contactor. The time required for opera-tion varies inversely with the magnitude of the overload.The standard thermal relay should only be used onmotors with starting times up to 10 seconds.

OVERTEMPERATURE RELAYSSome motors have RTDs placed in the stator slots. Thepurpose is to obtain an indication of winding tempera-ture by measuring the RTD resistance and its changewith temperature. Difficulty arises in obtaining a contin-uously accurate indication of temperatures, however,because of the time lag of heat transfer from the statorconductors to the RTD caused by the insulating materialsurrounding the conductors. Temperature changes inthe conductor will not be reflected in RTD resistancechange until heat is transferred through the thermalresistance and capacitance of the insulating material.

F EXTERNAL-RESET OVERLOADSSome industrial plants do not permit a machine opera-tor to open the doors of control equipment enclosures,this being reserved for electricians. To make possibleoverload-relay reset by operators, it is therefore necessaryto provide some means to do so outside the enclosingcase. This is accomplished by providing a mechanical-linkage reset mechanism between the relay and door-mounted reset button.Where external reset is not absolutely necessary, greatersimplification of relay mounting results, and this is ofbenefit to the user because it simplifies maintenance.Inasmuch as the tripping of an overload device is indica-tive of too much strain on the motor, it is preferable thatonly experienced and reliable personnel be allowed toreset overloads. Such personnel should be capable ofrealizing whether it was an unintentional overload onthe part of the machine operator or whether there is anelectrical and/or mechanical defect. The customershould consider this factor, however, before electing toprovide externally reset overloads.

0 20 40 60 80 100 120 140Time in Seconds

Figure FA Approximate temperature of RTD in iarge motorduring locked rotor.

If the copper temperature is changing very rapidly, suchas during locked rotor, the RTD will lag far behind thecopper temperature as shown in Figure F.4.Consequently, monitoring the RTD temperature is inad-equate for thermal protection during rapid-transientconditions. However, for steady-state indication of tem-perature, the RTD is very accurate.A relay which responds to changes in resistance of RTDs,providing steady-state indication of motor-winding tem-perature, used in conjunction with a bimetallic overloadrelay will provide reasonably precise over-temperatureprotection for the motor.Available solid-state relays contain a device which willmore accurately compute hot-spot temperature by utiliz-ing RTD amperes and line amperes. This relay accurately

SOLID-STATE OVERLOAD RELAYSSolid-state overcurrent protection is available as anoptional feature in place of standard thermal overloadrelays. The inverse-time characteristics can be adjusted toprotect motors of various characteristics, such as longacceleration time or short allowable-stall times.Characteristics are accurate and have a smaller errorband compared to bimetal relays. The solid-state over-load relay is recommended for hermetically sealed air-conditioning motors, and is well suited as a stall-protec-tion relay.

F3




fault is located at a point of high impedance inside themotor winding, and this is the reason why straight over-current relays alone do not always give adequate protection.The cost of this type of relaying is justified by the size ofthe investment to be protected. Large motors (usuallyabove 1500 hp) that are expensive to repair or replaceoften employ differential relays.Specifically, differential relays accomplish the following:

1. Provide for power interruption to a motor in theevent of a phase-to-phase insulation failure in themotor windings.

2. Provide for power interruption to a motor in theevent of a phase-to-ground fault in the motor winding.

The primary use of differential relays in LimitampControllers is to give fast, sensitive protection for faultsin the end turn outside the stator punchings. Such faultsare relatively rare compared with ground faults. However,when they do occur, the presence of differential relayswould probably mean the difference between minor andextensive damage.Two methods of differential protection are available.One uses six identical current transformers: three locat-ed in the motor leads and three located in the wye pointsof the motor windings, usually at the motor. In conjunc-tion with these six current transformers, a Type IJD orCFD relay is used to detect the difference in current inthe current transformer (CTs). The other method,known as self-balancing, uses three donut-type CTs. Boththe motor leads and the wye connections are broughtback through the holes in the donut CTs. For this system,an instantaneous relay of the hand-reset type is used.

tracks motor heating and is recommended in preferenceto the separate bimetal relay and RTD relay.

OPEN-PHASE AND PHASE-UNBALANCEPROTECTIONA three-phase motor may be damaged when subjected tounbalanced line currents. Usually, the damage occurs inthe rotor from overheating, caused by reverse sequencecomponents of currents not detected by normal overloaddevices. The rate of motor heating will be a function ofthe degree of phase unbalance, the most extreme ofwhich is the open-phase condition. For that reason,open-phase relays should operate instantaneously toavoid serious motor damage. Likewise, a motor maybe damaged over a period of time with as little as 10%unbalance, where unbalance is a transient conditionwhich would not justify instantaneous shutdown.Consequently, the time to trip should be delayed inproportion to the percentage of unbalance.More comprehensive open-phase or single-phase protec-tion can be obtained by applying a solid-state motor-protective relay, which will trip the contactor in theevent of an open phase, regardless of the cause, evenif external to the vacuum Limitamp control.A possible concern that may arise when applying a medi-um-volt contactor to a transformer feeder is what hap-pens to the contactor when a voltage dip occurs. In thepast, the contactor would drop out — removing powerfrom the primary of the transformer when the contactorcoil power is reduced to 60 to 80 percent of full voltage.To prevent dropout during loss of control voltage, latch-ing contactors should be applied. In these cases, thecontactor is latched by a closing coil and unlatched by atrip coil. A capacitor trip device can be applied to tripthe contactor in the event of total loss of control power.(See Latched Contactors, page B4.)

F

GROUND-FAULT RELAYSGround fault relays are justified economically for allmotors rated 2300 to 7200 volts, 150 horsepower andabove. The purpose is to provide interruption of powerto the motor as rapidly as is practical after positive indi-cation that a ground fault has occurred.The time of interruption of ground-fault current isdependent on several factors:

1. Sensitivity of the ground-fault relay.(a) Instantaneous type

(b) Time-delay type

2. Magnitude of ground current.3. Clearing time of the power interrupter.

The importance of clearing ground-fault current rapidlycannot be overstressed. Ground current inside rotating

CURRENT DIFFERENTIAL PROTECTIONThe term differential, as applied to a type of protectiverelaying, designates the principle on which the schemeoperates — that is, a difference in current. The relaysused are connected in such a way as to detect a percent-age differential in current between ends of a motor wind-ing. Ordinarily, in a machine operating without a wind-ing fault, the current into one end of a phase winding isequal to the current out the other end of the same wind-ing. When a fault occurs, however, the current into oneend of the winding is short circuited inside the machine(to another phase or to ground) at the place of fault, sothat a differential occurs between current “in” and cur-rent “out.” This causes the relay to operate. The percent-age differential may at times be quite small when the

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tactor clearing times are such that ground-fault currentsup to and including the fuse rating will be cleared with-out damage to the controller.Standard ground-fault relay used in Vacuum LimitampControl is a solid-state relay which operates on approxi-mately 4 to 12 amperes ground-fault current. If greatersensitivity is required, other solid-state ground-faultrelays may be furnished which can be adjusted to trip aslow as 1 ampere. However, extreme care must be exer-cised in applying ground-fault relays of such low pick up.They could trip falsely on system-charging current. Amagnetic ground-fault relay can be provided on request.

machines causes damage to the lamination which, if notinterrupted rapidly, necessitates complete disassemblyand repair of the motor.Although most ground-fault relays are now of the instan-taneous type, few applications do require inverse-timecurrent relays for coordination and selectivity reasons.The use of instantaneous-type relays is made possiblethrough the employment of a zero-sequence “donut” orwindow-type current transformer installed in the starterin such a way as to permit all three conductors of thethree-phase line to be used as the current-transformerprimary.

Phase currents add to algebraic zero, regardless of mag-nitude, and no secondary current flows except thatinduced by the primary current going to ground. Thissystem gives positive indication of ground current, elimi-nates false tripping and permits instantaneous relaying.

If time coordination with other ground-fault relays isnecessary, time overcurrent relays may be used in thecurrent-transformer arrangement.For certain sized motors where the power system per-mits, ground-fault relays may be used as a less expensivealternative to differential relays. Most phase-to-phasewinding faults detected by differential relays result in asimultaneous phase-to-ground fault, thereby operatingthe ground fault relay. For that reason, ground faultrelays may be used as a less expensive alternative todifferential relays.Another method of detecting ground currents in a three-phase system employs three separate line-current trans-formers, one in each phase, with the secondaries fedthrough a single current relay. In this system, the sec-ondary currents should sum to zero just as they do in theprimary of the “donut” current transformer. And, withno ground current flowing, the three secondary currentsdo add and cancel each other out. Ground current onlywill cause the relay to operate. For currents of large mag-nitude, however, such as motor locked-rotor current, cur-rent-transformer saturation becomes a problem, causingresidual current to flow in the relay coil...resulting infalse tripping. To prevent false tripping with the residualconnection, time-delay relays are necessary to permit rid-ing over the starting period of the motor. This fact makesinstantaneous relays impractical in the residual system.

Instantaneous ground-fault relays may be applied toLimitamp (NEMA Class E2) controllers without limita-tion on available ground current. The fuse and relay-con-

UNDERVOLTAGE PROTECTIONNEMA defines undervoltage protection as a devicewhose principal objective is to prevent automatic restart-ing of equipment.Instantaneous undervoltage protection is inherent to thestandard 3-wire control circuits, since the contactor willdrop out and stay out on loss of voltage.

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TIME-DELAYTime delay undervoltage protection (TDUV) for aLimitamp controller can be provided to prevent shut-down of a motor on adjustable duration voltage dipsbelow the adjustable dropout voltage. With either time-delay or the standard instantaneous undervoltageprotection, the motor remains disconnected until theoperator restarts the motor.

TDUV-AUTOMATIC RESTARTIn the event of voltage dips of short duration, conven-tional TDUV circuits provide an automatic restart ofLimitamp contactor without operator intervention. (Atime delay of approximately 1.5 seconds is usually provid-ed.) However, in motor applications, automatic restart-ing can cause serious damage to windings and mechani-cal loads connected to the motor due to out-of-phasereclosing. In worst cases this out-of-phase reclosing couldapply up to two times the normal voltage to motor wind-ings. TDUV auto-restart scheme is not recommended forsynchronous, wound-rotor or large horsepower high-speed squirrel-cage motor controllers without additionalcircuitry to delay reclosing after a UV condition.The TDUV automatic restart scheme in LimitampControl permits instantaneous shutdown by connectionof the STOP button into the UV relay circuit. Careshould be taken not to connect a maintained-contactdevice into this circuit.

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SYNCHRONOUS-MOTOR CONTROLAND EXCITATION

CR192(iSPM module signals the SFC to apply DC to themotor field, the SFC switches the field discharge resistoroff and causes the SCRs in the rectifier bridge to turnon, resulting in DC being applied to the motor field. Thebridge SCRs are gated “full on” so that they emulate adiode rectifier bridge. The voltage of this DC field supplyis determined by the tap connection of the customizedtransformer that feeds AC power to the rectifier bridge.This transformer has secondary taps arranged so that theDC voltage can be adjusted in 5% increments from 70%to 130% of the transformer nominal secondary voltageby changing connections at the transformer tap.

SYNCHRONOUS MOTOR CONTROLGE Limitamp synchronous-motor controllers are offeredfor both brush-type and brushless synchronous motors.As a standard, both brush-type and brushless synchrnousmotor controllers are equipped with the CR192 pSPMsolid-state field application and protection module. Thismicroprocessor-based module provides basic synchro-nous motor control and protection functions includingsquirrel-cage starting protection, power factor and pull-out running protection, and field application control tomaximize pull-in torque (for brush-type machines only).Digital displays of motor running line current and powerfactor are featured along with a keypad for entering set-point parameters. Available options are field loss protec-tion, exciter voltage check protection, field amps display,exciter volts display, incomplete sequence protection,and power factor regulation (when used with compatibleSCR type variable field exciters).

VARIABLE EXCITATIONAnother exciter offering is the electronic variable fieldcontactor (VFC). The VFC is available in single- or three-phase versions. Three phase VFC exciters are recom-mended for sizes 20 kW and above (125 VDC fields), and25 kW and above (250 VDC fields) . Like the SFC(above) , the VFC controls the switching of the field dis-charge resistor and DC to the field depending on inputsfrom the CR192 pSPM. The difference is that the gatingof the rectifier bridge SCRs can be controlled by varyingan analog voltage at its control input. This allows on-linecontrol of the DC exciter voltage by any of severalmeans:

1) Manual control via a door-mounted potentiometer.2) Automatic control via the field current regulation

module.3) Automatic control via the CR192 pSPM equipped with

power factor regulation.

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EXCITERS FOR BRUSH TYPE MOTORSFor synchronous motors equipped with slip-rings andbrushes, Limitamp is offered with a variety of excitationoptions. Single-phase solid-state exciters can be integratedin the controller NEMA 1 ventilated enclosure upto 9 kW (exciters must be derated for non-ventilatedenclosures). Larger exciters require auxiliary enclosuresthat can be placed in the common bussed line-up withthe Limitamp controllers. Two basic types of exciters areavailable:

•SFC (fixed excitation with adjustable tappedtransformer)

•VFC (on-line adjustable excitation by manual orautomatic means)

FIXED EXCITATIONThe basic exciter offering is a single-phase, tapped-trans-former, static field contactor (SFC). The SFC is a solid-state switching device consisting of silicon controlledrectifiers (SCRs) in a bridge circuit for rectification ofAC power to DC. Additional SCRs are provided to switchthe field discharge resistor. During starting, the SFCswitches the field discharge resistor on so that theinduced field current from the motor field is passedthrough the discharge resistor. The field discharge resis-tor is also switched on to discharge the field currentwhen DC is removed at motor shutdown and if, duringnormal motor operation, the motor field generates ahigh voltage surge above approximately 600 volts, suchas would occur if the motor “slips” a pole. When themotor has accelerated to near synchronous speed, the

ON-LINE FIELD ADJUSTMENTThe manual potentiometer is normally mounted on thedoor and allows an operator to adjust the motor fieldcurrent while the motor is running. This provides theconvenience over the SFC type exciter of not having toshut down the motor and physically move cables betweenseveral taps on the exciter transformer.

FIELD CURRENT REGULATIONThe field current regulator module also employs a man-ual potentiometer for adjustment of the field current.However, the regulator provides a closed loop control sothat the VFC DC output is automatically adjusted tomaintain the set-point field current as set by the manualpotentiometer. This feature allows the operator to set thefield one time at a desired field current. The field cur-rent will then be regulated to compensate for field resis-tance changes due to field winding heating or systemvoltage fluctuations. The leading reactive power contri-bution of a synchronous motor is related to the level of

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field current. If it is desired to maximize the contribu-tion of leading reactive power from the synchronousmotor at all shaft loading conditions, set the field cur-rent as high as possible without exceeding its nameplaterating. Field current regulation is the ideal choice formaximizing the leading reactive power because it allowsthe operator to set the field current very close to ratedand not worry about the current “creeping” higher orlower from the potentiometer setting.

panel, is mounted on top and is connected directly inseries with the synchronous-motor field as a means ofadjusting field current. The resistor is continuously ratedwith taps to adjust field current 10-percent above andbelow rated full-load field current for rated power factorsin approximately 2 -percent steps.

POWER FACTOR REGULATIONPower factor regulation is an excellent choice for appli-cations requiring field forcing, which is applying DCexcitation above its rating for a short time. Many drives,such as chippers, are subject to transient impact over-loads many times the motor rating for short time inter-vals. By forcing the field, the synchronous motor can beenabled to deliver shaft torques above the rating without“pulling-out” of synchronism and shutting down. GEtests on chipper drives have demonstrated that thepower factor regulation option can provide the rapidfield forcing feature to prevent disruptive motor “pull-out.” Power factor regulation operates on the principlethat the motor running power factor is a good predictorof motor pull out. Before a motor pulls out of step (as aresult of high shaft loading from a hard or oversized logentering a chipper) , the power factor dips in the laggingdirection drastically. By setting the regulator such that itboosts excitation as the power factor dips more laggingthan the regulator set point, the motor running powerfactor is held to a “healthy” level and motor “pull-out” isavoided. Power factor regulation also allows the fieldexcitation power to be conserved when the motor is run-ning lighdy loaded or unloaded. This not only allowsenergy conservation but also deeper no-load cooling ofthe motor windings, so the motor runs cooler for a givenlevel of RMS loading. Power factor regulation can helpregulate the power system voltage by minimizing reactivepower swings over a wide range of motor loads.

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BRUSHLESS SYNCHRONOUS CONTROLThe CR192 (XSPM is also designed for use with brushlesssynchronous motors. It provides timed field exciterapplication, power factor and pull-out protection andstarting/stall protection. Included with the standardbrushless synchronous motor Limitamp controller isa variable exciter field supply consisting of a doormounted variable autotransformer and rectifier foron-line exciter voltage control.

FIXED-TAP FIELD RESISTORA fixed-tap field resistor may be used for separate DCsource. This resistor, when supplied with the Limitamp

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CONTROL CIRCUITS JOGGINGDrives requiring ‘jogging” (or inching) must have thecontrol circuit arranged for repeatedly closing the linecontactor at short intervals to effect small movements ofthe driven machine. The line contactor is held closedonly as long as theJOG button is held depressed.An anti-kiss circuit is provided with theJOG push button,including a jog relay. The jog relay closes when theJOGbutton is depressed, energizes the line contactor coil,seals itself in around theJOG button and is dropped outonly after the line contactor has closed and wiped in.This makes possible repeated opening and closing of theline contactor, but also assures that the tips wipe closedeach time.

CONTROL POWER TRANSFORMERControl power transformers used in Limitamp startersare single-phase, air-cooled, core-and-coil constructionwith high-voltage windings covered to prevent contami-nation by dust and dirt. Those furnished in standardpanels have a 25-kV Basic Impulse Level (BIL) rating.When specified, 60-kV BIL rated control transformerscan be furnished, but will require special space consider-ation. Two kVA is standard in a basic controller.Transformers above 2 kVA are optional, and above 3 kVAmay require an auxiliary enclosure for mounting.

OMISSION OF CONTROL POWER TRANSFORMERA lineup of starters can use a common control powertransformer or other source of control power. In eithercase, the power source and control circuit must be pro-vided with interlocking relays so the loss of either willshut down all operating motors. Control bus is requiredin all controllers if a common source of control power isused.A single source of control power results in some disad-vantages: (1) Unless each panel is provided with a fusedcontrol switch, troubleshooting must be done with livewires in the panel; (2) a single controller, if relocatedindependent of the lineup, will require modification toadd a control transformer and fuses; and (3) the loss ofcontrol power will cause shutdown of all machines.

CURRENT INTERLOCKINGCurrent-operated relays indicate when the arc is com-pletely extinguished after the line contactor opens.These relays then permit closure of a reversing contac-tor. A short circuit may occur if a reversing contactorcloses after the forward contactor opens but before thearc has been extinguished. This circuit is necessary incontrollers with “plug stop” or where pressing oneinstantaneous contact picks up reversing contactor whilerunning forward. Current interlocking is not normallyused on overhauling loads such as mine hoists, since dur-ing the lowering cycle enough current may not be drawnto operate the interlocking relays.This circuit is not supplied on standard Limitamp revers-ing controllers, as the operator is expected to turn theselector switch to reverse only after pressing the STOPbutton.

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TIMING RELAYSPneumatic-type timing relays close or open a circuit aftera definite elapsed time on either energization or de-energization.Motor-driven timing relays close or open a circuit withtime delay on either energization or de-energization.They provide a wide range of time, however, and are notaffected by ambient temperatures. Solid-state timingrelays with high accuracy and repeatability can be fur-nished.

POTENTIAL INTERLOCKINGPotential interlocking is used for the same reason as incurrent interlocking. Potential transformers and inter-locking relays are added to prevent closure of one prima-ry contactor before complete interruption of the arcs atthe tips of the other (reverse) contactor. Operation isbased on the principle that by the time the disconnectedmotor’s generated EMF has decayed to the point wherethe interlocking relays have dropped out, the arc in thedisconnected contactor has extinguished, and closingthe reversing contactor is permissible.Potential interlocking is used on hoists and other appli-cations having possible overhauling loads.

INCOMPLETE-SEQUENCE RELAYAn incomplete-sequence relay is used to shut down themotor (squirrel-cage induction or synchronous) onreduced-voltage starting if the control fails to transfer tofull voltage. It protects the starting reactor or autotrans-former from energization longer than rated time. Therelay can be furnished for other sequencing functionsalso.

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INSTRUMENTATION VARMETERThe varmeter indicates lagging or leading reactivepower. It requires the addition of two potential trans-formers. In totaling reactive power on a bus feedingseveral loads, individual vars for each load can bemeasured by means of individual varmeters on eachmotor and added directly.

AMMETERAn ammeter (panel-type or switchboard-type) is used toindicate either motor amperes or total incomingamperes. It can either be hardwired to the current trans-former of one phase or all three phases can be moni-tored by the use of a selector switch. One current trans-former is required for single-phase reading; two arerequired for open delta three-phase reading; three arerequired in a wye circuit. Three window-type currenttransformers are provided as standard on LimitampControllers.

ELAPSED TIME METERAn elapsed time meter is used to indicate hours ofoperation or shutdown time of a particular motor or drivefor the purpose of production records, maintenancescheduling, or engineering records.

VOLTMETERThe voltmeter (panel-type or switchboard-type) is usedto indicate phase-to-phase potential. One potential trans-former is required if only one phase-to-phase potential ismonitored. Two potential transformers, connected in anopen-delta configuration, are required along with aselector switch to monitor any one of the three phases.Three potential transformers mounted in an auxiliaryenclosure and a selector switch are required to read bothphase-to-phase and phase-to-neutral potentials.

TRANSDUCERSTransducers are used to transmit electrical properties toremote devices, while maintaining a high accuracy whenthe cabling distance or resistance may be high. Thestandard output is 4 - 20 mA DC. Current transducersrequire (1) CT; voltage transducers require (1) PT; wattstransducers require (2) CTs and (2) PTs.

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TEST BLOCKSCurrent and potential test blocks provide a plug-infeature for portable meters, to obtain readings orrecords without shutting down the machine.POWER FACTOR METER

A power factor meter is used to indicate power factorlead or lag. It is useful in adjusting power factor in syn-chronous motor drives and in determining the powerfactor of a given drive. The addition of a power factormeter requires the addition of potential transformers, orof some other potential source with correct phase andaccuracy. When a synchronous starter is supplied, theCR192 pSPM has a digital power factor meter built intothe device.

WATT-HOUR METERA watt-hour meter is used basically to measure workdone. Specifically, it registers total watt-hours used by themotor or other load on the controller. It is useful inassigning power charges in plant accounting or forrecord keeping of power consumed per unit of manufac-turing. It requires the addition of two potential trans-formers connected in open delta.A demand register indicates maximum demand. It is use-ful in determining peak loads for particular machineswhere demand must be controlled to keep power costs ata minimum.

WATTMETERA wattmeter is used to indicate loading or useful powerbeing delivered to a drive at any instant. The instrumentis typically calibrated in kilowatts. Two potential trans-formers connected in open delta are required for operation.

OPERATION COUNTERThe operation counter is electrically operated from acontrol interlock on the line contactor. It totals thenumber of times the contactor has closed and opened,and thus provides data for the establishment of mainte-nance schedules, a record of the number of batchprocesses initiated over a given period of time, or anyother purpose where the number of line contactorclosures may be significant.

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GE Medium VoltageMotor Control Components

Below are typical push buttons, selector switches and control wiring used in standard Limitamp. The followingpages depict cut-sheets showing details of typical components. For more detail, refer to Table A.4,which showspublication reference.

Table G.1Typical push buttons

ApplicationFunction Device used

FVNR starters with 3-wire controlStart-Stop CR104P momentary type

Starters with 3-wire controlStarters with 2-, 3-wire control

CR104P momentary typeCR104P maintained type

Options:Mushroom head

Provisions for locking open

Stop

FVR startersCR104P momentary typeForward-Reverse-Stop

2-speed startersCR104P momentary typeFast-Slow-Stop

Table G.2 Typical selector switches

ApplicationFunction Device used

Permissive start with 2-, 3-wire controlCR104P maintained typeOn-Off

Auto or manual start with 2-wire controlCR104P maintained typeHand-Off-Auto

2-speed startersFast-Slow-Off-Auto CR104P momentary type

Table G.3 Control wiring details

Standard OptionItem

SIS (vulkene)Control wiring type MTW, thermoplastic600V, 90° C

AWG #12AWG #14Control wire size

Insulated ring typeUninsulated spade typeControl wire terminals

Heat-shrinkabie labelsPlastic sleeve typeWiremarkers

Power-BlackControl-Red

Neutral-WhiteGround-Green

Wire color code

EB-25, 50A, 600VConnectron Type KUX

CR151B, 30A, 600VTerminal blocks

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CR120B MACHINE TOOL ANDINDUSTRIAL RELAYSThe CR120B and CR120BL Series A, multi-circuit industri-al relays are designed to meet most panel applicationrequirements. They are available as standard, latched ortime-delay relays.All forms of the relay mount on the same base and in thesame small panel-mounting area. Relays may be arrangedin any configuration or modified on a panel withoutaltering the mounting area.

FEATURES•Bifurcated contacts assure positive make — unique

bifurcated contacts assure positive make at all voltagesand give excellent fidelity, even in harsh environments.

•Transparent Lexan® contact cartridges — allow inspec-tion of contacts.

•Convertible contacts — allow conversion from normallyopen to normally closed, or vice versa.Just change theterminal screws and invert the contact module.

•Quick-change coil — can be changed without removingany screws.

LATCH ATTACHMENTThe latch attachment mounts on any standard CR120Brelay in the same manner as a deck adder.

CR120B standard AC relay

Table G.5 Coil dataTable G.4 Coil data

Inrush VA Sealed VA Sealed watts Volts

115-120, 230, 46024, 48, 125

AC relay coilAC unlatch coilDC relay coil

120 15 7 60 HzDC31 15 9.2

235 2.8 2.8

Table G.6 Contact ratings

Maximum ACvolt-ampere rating

Maximum ACrating amperes

Maximum DCrating amperes

Maximum DCvolt-ampere rating

Max.Type Max. Continuous

ratingamperes

ACof125V 250V 300V or lessvoltage Make Break Make Breakcontacts

60 6 1.1 0.55 138Inst.® 600 10 7200 72030 3 0.5Delay 600 5 3600 360

<D Use for CR120B contact rating.

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ACCESSORIESC-2000 MINI-CONTACTORS (MCR4)Surge SuppressorUsed to protect control circuitsfrom voltage transients. Plugs intofront of contactor, no externalwiring required.

While the standard line of DC-operated relays requiresonly three-watt coil holding current, some PLC applica-tions require lower wattage coils to efficientiy interfacewith the PLC. Special relays are available with 24-volts DCcoils, which only require 1.2 or 2 watts for pull-in andholding. These relays are available in three different ter-minal configurations — 4NO, 3NO-1NC and 2NO-2NC.

FEATURES AND BENEFITS•Modular design — Various configurations can be

created with the wide selection of available accessories.•Compact size — The contactor/relay mounting profile

is approximately 1%” x 1%”.•Long life — This family of relays offers superior

performance. Mechanical life is rated at 10 millionoperations.

•Reliable operation — These products are manufac-tured with the latest advancements in materials technol-ogy and designed to ensure long, dependable opera-tion. (Coils are designed for protection against burnoutduring demanding brownout conditions.)

•Flexible mounting — Mounting is not restricted forcontactor and relay applications; contactors may behorizontal-, tabletop- or ceiling-mounted.

•International acceptance — Devices are listed and certi-fied to IEC 947.4, VDE0660 and North American stan-dards, and they provide dual markings.

Table G.7 Main contacts data

Control relays

Rated insulation voltage (IEC 947.1) 660 volts

10 amperesRated thermal current (UL 508)

A600, Q600Contact rating

25-400 HzFrequency limits

Impedance per pole 2.4 mft

No overlap between NO and NC contactsSpaceTime

1.1 mm>2 msec

Table G.8 Main contacts data

Carrycontinuousamperes

Makemomentary

amperesRating

amperesBreak

amperesTime

AC 6A600 10 60DC 0.55Q600 2.5 0.55

Table G.9 Pickup/Dropout percentage coil voltage

DropoutType coil Pickup

35%-55%AC controlled 80%-t10%

20%-40%DC controlled 80%-110%

PLC interface (1.2W) 80%-125% 20%-30%

PLC interface (2W) 20%-35%70%-125%

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CR104P PILOT DEVICES Standard Push-to-test Bulb ColorType

Full voltage(120 Volts AC)

Red#120PSBX X GreenAmber

Transformer(6 Volts ACSecondary)

BlueX X #755 White

Clear

RedWhiteAmberClear

Neon X N/A Neon

LED RedLED Green(Transformertype only) X X (6 volt) Blue

Amber

DESCRIPTIONNewly designed nameplates with chrome-plated octagonalrings project an attractive, quality appearance. Positive-feel selector switches give a quality touch in all illuminated,solid-color, spring-return and maintained units.Standard and illuminated push buttons and selectorswitches are available with key or conventional operation.The CR104P push button line also includes press-to-testand standard indicating lights, mushroom-head, joystick,push-pull and push-push operators.

CONTACT RATINGS

Table G.10 AC ratings, NEMA A600 heavy pilot duty

Maximum AC Continuous currentamperes

AC voltamperes 50/60 Hz©

Make Break

600 10 7200 720

<D CR104PTP units are suitable for Type 1, 12 and 13 applications only.© Maximum make and break currents are 60 and 6 amperes, respectively, for voltages of

120 and below.

APPLICATIONThese pilot devices are specially adapted to machine-toolservice or any application where oil or coolant is present.The convenient one-hole mounting makes this line suit-able for general purpose use in equipment of all kindswhere panel mounting is possible. This line is ideal forapplications where oil tightness, watertightness and longlife are essential.All units are suitable for use in Type 1, 3, 3R, 4, 12 and13 environments when mounted in enclosures rated forthose same applications. (See © under Table G.10.)

Table G.11 DC ratings, NEMA P600

Maximum make or break amperes

125 volts 250 volts 600 volts

1.1 0.55 0.2

CR104P PILOT LIGHTSPilot lights match appearance of switches above. Standardapplications use full-voltage or transformer-type lights.Optional nameplates match those used with switches;neon lights are available (with limited lens colors).

Table G.12 Typical pilot lightsFEATURES•Ease of assembly — One-screw contact block mount-

ing. Octagonal ring provides ease in front panel mount-ing and enclosure applications.

•Greater torque — Due to the eight-sided ring design,greater torque can be developed during assembly andinstallation to provide oil tightness.

•Stocking inventories reduced — Forms may be fur-nished as complete units or as components, allowingbuilding-block construction from a minimum of stock.

•Color convertible — Colored knobs and caps are avail-able in kit form for easy field conversion.

Function Device used

CR104P with 120-volt, 10,000-hour lampFull voltage

Transformer CR104P with 6-volt, 20,000-hour lamp

Push-to-test CR104P, full-voltage or transformer-type

Red On, Fast, Forward, UpDown, Reverse, Slow

Stopped, ReadyColors available Amber

Green

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CR7R INDUSTRIAL TIMINGCONTROL RELAY

Table G.13 Instantaneous relay contacts

Contact arrangementAC controlled

Contact arrangementDC controlled

4 NO 4 NO3 NO,1 NC2 NO, 2 NC

3 NO, 1 NC2 NO, 2 NC

Min. 85% rated voltage50T or less rated voltageIn excess of 10 million operationsIn excess of 1 million operations

•Pull-in volts•Drop-out volts•Mechanical life•Contact life

Table G.14 AC coll ratings

AC coil rating

24V/60 Hz48V/60 Hz

120V/60 Hz208V/60 Hz240V/60 Hz

24V/50 Hz48V/50 Hz

110V/50 Hz190V/50 Hz220V/50 Hz

277V/60 Hz 240V/50 Hz380V/50 Hz415V/50 Hz440V/50 Hz550V/50 Hz

The CR7R industrial control timing relay is a compactrelay designed for heavy-duty industrial control applica-tions where reliability and versatility are required.•Compact mounting dimensions•Mounted on vertical plane•Straight-through wiring•Easy coil replacement•Long contact life•High operating speed•Silver alloy contacts•Captive terminals•Rated 600 volts•UL listed

Auxiliary components convert basic four-pole relay to afour-pole relay with two pneumatic time delay contacts.

480V/60 Hz600V/60 Hz

GAC inrush DC inrushHolding Holding

VA VA W W

55 9 8.5 8.5

Table G.15 DC coil ratings

DC coil rating

24 volts DC 125 volts DC

48 volts DC 250 volts DC

Table G.16 Pneumatic time-delay attachments —1NO,1NC timedelay contacts 0

Time-delay (convertible) Time range (seconds)

TDAE 0.3-30

TDAE 10.0-180

TDAD 0.3-30

TDAD 10.0-180

(D Contacts are in addition to base relay contacts.

Table G.17 Contact ratings — for relay contacts and timer contacts

Maximum DC amperes — break or makeMaximum ACVolt-amperes

Maximum ACamperesMax. Max. Relay TimerAC continuous

amperesvoltage Make Break Make Break 24V 125V 250V 24V 125V 250V

600 10 7200 720 60 6 5.0 1.1 0.55 2.5 .55 .27

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CR324 BLOCK OVERLOAD RELAYS FORPANEL MOUNTING

FEATURES•+10/-10% adjustment of trip current to allow fine tun-

ing and eliminate nuisance tripping•Bright yellow visual trip indicator tells you at a glance if

the relay has tripped•Manual weld check — Check for welded contacts by

depressing the arm to trip the relay and doing a simplecontinuity check across the terminals

•Dual bimetal current monitoring — Additional bimet-al strip “anticipates” the rate of temperature rise in themotor winding, effectively reducing trip time in lockedrotor conditions. It prevents dangerous temperatureovershoot in the motor windings.

•Flexibility of operation — The trip rating can be easilychanged by replacing the front-accessible heaters

•Isolated NO contact — Can be used for input to a pro-grammable controller, an alarm bell, or a signal light

•Safe reset — Operates on upstroke only

3-POLE 600 VOLTS AC/250 VOLTS DC, 135 MAXI-MUM AMPERES CONTINUOUS, UL FILE 2403

APPLICATIONThe panel-mount block overload relay with ambientcompensation provides overload protection for motorshaving full-load currents up to 135 amperes. The relaysare furnished complete for use on control panels. Whenan overload condition occurs in any of the three legs inwhich heaters are inserted, it will cause the relay to trip,opening a normally closed contact, and closing a nor-mally open contact.A normally open circuit may be connected to a signal light,an alarm bell or input circuit of a programmable con-troller, e.g., to provide indication of an overload relay trip.

Table G.18 Manual reset only

Control circuitarrangement

Maximum full-loadcurrent in amperesG Size Catalog Number

1 NO, 1 NC CR324C660A27 1

Table G.19 Contact ratings

Recommended maximum interrupting capacity, amperesContinuous

rating amperesMake

amperes DC circuits AC circuits

230V 460V 575VAC or DC 125V 250V 115V

0.75 0.630 0.35 0.17 3 1.510

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Multilin269 Plus Motor Management Relay OPTIONS•Remote Mounted MTM Meter and Transducer Module

communicates volts, KW, KVAR, PF and Hz to 269 Plusscreen.

EASE OF USESimple operationThe 269 Plus relay will normally be shipped programmedfor most application, and only minor field programchanges will be necessary to suit the particular motor.

PRODUCT DESCRIPTIONThe Multilin 269 Plus Motor Management Relay isdesigned to allow the user to safely maintain maximum-rated motor output without risk of downtime. To achievethis, the 269 Plus system has the following portfolio ofMotor Management tools:

•A complete protection package including the uniqueMultilin features FlexCurve and MotorMatch .

•StatTrac operation monitoring for effective maintenance.•RelayCom option for motor monitoring by computer.•Flexibility of control with prior alarms to alert the need

for action to maintain operation.•Diagnostic data gathering and retrieval to determine

the exact cause of shutdown.•Exponential running cooldown.•Optional metering module with 4 isolated analog outputs.The 269 Plus relay is housed in a compact, rugged enclo-sure compatible with all types of motor starters.

Use HELP key at any timefor operational assistance.

To facilitate this, the model 269 Plus has the followingfeatures:

•Keypad programming•Tamperproof setpoints•Backlit, 48-character alphanumeric display•Question and answer messages•Request for HELP messages•Recall of setpoints•Actual values upon demand•Output relay status indication

GFEATURES•Rugged, corrosion and flame retardant case.•Durable polycarbonate front panel.•48 character backlit alphanumeric display.•Red LED on steady when output relay activated.•Indicator and remote alarm output when self-check

detects internal hardware failure.•Press to display actual motor values of current, temper-

ature, thermal capacity and learned parameters.•Provides user with application information and pro-

gramming assistance.•Allows user to set, alter and examine all alarm, trip and

other setpoints.•Allows user to increment or decrement currently

entered setpoint.•Allows user to scan the next or previous line on the cur-

rently selected page.•Allows user to scan the next or previous page of actual

values or setpoints.•Press to store displayed setpoint in memory when in

access mode.•Use to return from altered setpoint or help message to

previous display.•Permits user to reset latched output relays.

ACTUAL SETVALUES I POINTS HOP

UNEPAGE VALUE

VALUEPAGE UNE

^71^71^7RESET STORECLEAR

The microcomputer design communicates informationto the user through the 48 character alphanumeric dis-play.Just like reading a book, the keypad page and lineselection system guides the user through the requiredsetpoint values for optimum motor protection and per-formance. To aid the user, the HELP key can be pressedat any time to provide additional information and pro-gramming assistance. Access for programming is gainedby placing a jumper across the access terminals. Whenprogramming is complete, the jumper is removed, thus

G7




making the program secure and tamperproof.Alternatively, these terminals can be wired to a separatekey-operated shorting switch available as an accessory.A software access code can also be programmed foradded security.

Functional specificationsMotor Management and protection shall be provided bythe 269 Plus Protection Relay.Protective functions must include: Phase overload stan-dard curves (51), overload by custom programmablecurve (51), Pt modeling (49), StatorOvertemperature/Bearing Overtemperature with 10independent RTD inputs (49) , negative sequence unbal-ance/single phase (46), phase reversal (47) , starts perhour and time between starts (48) , short circuit (50),ground fault (50G, 50N, 51G, 51N), undercurrent (37)and mechanical jam/stall.

Management functions include:

•Statistical data•Pre-trip data•Ability to learn, display and integrate critical parame-

ters to maximize motor protection•Communication with external devices

The relay shall be capable of displaying important meter-ing functions. As a minimum phase voltages, kilowatt,kilovar, power factor, frequency and MWHr shall be avail-able. In addition, undervoltage (27) and low power fac-tor alarm and trip levels shall be field programmable. Itis required that the metering option be a separate boxthat communicates with the 269 Plus relay and may befield installed without modification to the 269 Plus relay.The metering option can be used with any 269 Plus relaywhere diagnosis or load measurements are required andshall also provide isolated analog outputs for averageRMS amps, kilowatts, kilovars and power factor.

/\i 400»p

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Legend

Device No. Function

Speed DeviceUndercurrent/Minimum LoadMotor/Load Bearing OvertemperatureUnbalance — Negative SequencePhase ReversalMultiple Start/Locked RotorStator Winding OvertemperatureOverload Curves/FlexCurveShort CircuitMechanical Jam/Rapid TripZero Sequence Ground FaultBreakerAlarm RelayMain Trip Latched RelayAuxiliary Relay No. 1Auxiliary Relay No. 2Differential Relay Contact OutputStarts Per HourUndervoltage (Meter Option)Frequency (Meter Option)Power Factor (Meter Option)

14373846474849

49/5150

50G/51G527486

6627

55

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MDP 3-PHASE OVERCURRENT RELAYDESCRIPTIONThe MDP relay is a digital, microprocessor-based non-directional time overcurrent relay that protects againstphase-to-phase and phase-to-ground faults. The MDPseries relay includes four measuring units, including onefor each of the three phases in addition to ground. Eachmeasuring unit contains a time overcurrent unit and aninstantaneous unit.

FEATURES•Information— Last trip current— Last trip time— Trip indication— Pickup indication— Breaker status

•Eight selectable curves— Inverse (51)— Very inverse (53)— Extremely inverse (77)— Long-time inverse (66)— Four definite times

•Enhanced selectivity— Block instantaneous— Block ground— Instantaneous delay— Breaker status

•Configurable outputs— 5 output relay contacts

•Communications— Field upgradeable communications— Interfaces with POWER LEADER distributionsoftware

MDP Relay

MDP * * 0000Ai GNo communications or digital inputs

Digital inputs* and communication socketCommnet communications card installedRS232 communications option**

012A

5A, 1.5 to 13.125A phase, 0.5 to 4.375 ground5A, 1.5 to 13.125A phase, 1.5 to 13.125 ground5A, 1.5 to 13.125A phase, 0.1 to 0.875 ground1A, 0.3 to 2.625A phase, 0.1 to 0.875 ground1A, 0.3 to 2.625A phase, 0.3 to 2.625 ground1A, 0.3 to 2.625A phase, 0.05 to 0.4375 ground

123456

24-48 volts DC48-125 volts DC125-250 volts DC

123

* Digital inputs include block ground, block IOC and breaker status* * RS232 communications is not field upgradeable; breaker status not available

MDPCMN upgrade communications card•Other ***— Meets ANSI C37.90, BS142 and IEC 255— Drawout construction (S2 case)— External reset leverSemi-FlushMountingDimensions

it

7> DODO)

10 312 iri261 mm

DODOV

6 107 in.1$7 mm0 025 in

100 mm — H1 125 m29 mm

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HFC INSTANTANEOUS OVERCURRENTThe HFC relay is a hinged armature instantaneousdevice with two electrically separate contacts, assembledin a Cl single end drawout case. Each unit contains atarget, which is raised into view and latched when therelay is picked up. The targets are manually reset by abutton on the front of the relay cover.The HFC is generally applied where a direct trip instan-taneous overcurrent function is required.The relay can be used to provide differential protectionof a motor usually by means of self balanced primarycurrent scheme with the current transformers mountedat the machine terminals.

Table G.20 Selection guide

Current rangeNumberof units

Modelnumber

Case Weight lbs (kg)Minimum Maximum size NET

0.5 4.0 12HFC23C1A12HFC23C2A

3 C1 8 (3.6)G 2.0 50

Table G.21 Tapped coil ratings

Continuous1-second(amps)

Instantaneous unit (amps) RangeLink position

Rating(amps) Rating K

0.5-4 L 0.5-2 0.75 94 8,836H 2-4 1.5

2-50 L 2-10 3.7 130 16,900H 10-50 7.5

Table G.22 Burden 60 Hz unit

Burden at minimumpickup (ohms)

Burden timespickup (ohms)Instantaneous unit (amps) Link

Xposition R Z 3 10 20

0.5-4 L 10.63 9.77 14.44 9.81 8.56 7.8H 5.13 3.49 6.21 4.66 4.26 4.18

2-50 L 0.750 0.650 0.992 0.634 0.480 0.457H 0.070 0.024 0.074 0.072 0.071 0.070

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IJD PERCENTAGE-DIFFERENTIALDESCRIPTIONThe type IJD relays are induction disk units used to pro-tect AC rotating machines, two winding transformers,and wye winding of power transformers. IJD relays pro-tect against phase-to-phase faults within the AC machineand the lead in the differential zone, provided the faultcurrent is above the minimum pickup value.

Min. Min.Continuous

rating(amperes)

operatingSlope

(percent)

operatingCurrent

(amperes)FrequencyModel number

Type IJD52A — 2 NO contacts,$1case construction

2512IJD52A12A 60 5 0.5

G

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THREE-PHASE VOLTAGE MONITORSMODEL LPVRULrlisted File number E103039 3

21

2

PHASE VOLTAGE RELAY~n—VT ITTTTT k0 no I e I ae

4

GENERALThe model LPVR is a three-phase voltage monitor thatuses negative phase sequence monitoring to protectagainst phase loss, phase reversal and undervoltage onthe power system. Electromechanical diagnostic indica-tors (manually reset) show trip conditions due to phaseunbalance, phase loss and undervoltage. A green LEDindicates that the power system has no faults present andthat the phases are in sequence.Model LPVR specifications:•Provides prestart and running protection•Fully rated 600 volt contacts•Diagnostic indicators continue to show cause of

operation after voltage is removed•Adjustable undervoltage trip point settable to 75% of

nominal•Adjustable trip delay from 50 milliseconds to

10 seconds•Adjustable reset delay from 1 second to 5 minutes•Operates at 6% phase unbalance•Maintains operation with a 12.5% phase voltage loss•Automatic or manual reset, local or remote•Operational green LED indicator•Fail-safe — will not operate if fault is present•Isolated Form “C” output contacts•Terminal screws are #6-32 nickel-plated brass

(D GREEN LED INDICATOR:•Powersystem condition

© ELECTROMECHANICAL DIAGNOSTIC INDICATORS:•Phase unbalance•Phase loss•Undervoltage

<D ADJUSTABLE SYSTEM DELAYS:•Undervoltage trip point•.05-10 second trip delay•0-5 minute reset delay

© TERMINAL BLOCK:•Automatic or manual reset•Input voltage — 120-575 volts•Output contacts — Form “C,” 1 NO & 1 NC

Table G.23 Three-phase voltages available with Model LPVR

Voltage rangeCatalog Number Nominal rating

90-125LPVR 120 120

240 180-250LPVR 240

480 360-500LPVR 480

430-600LPVR 575 575

•3.1« 4.450.25 -*i

o o O O O o o4.25

3.03 3.62

J E0.44T iij ^ --0.25

5.1«

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MODEL APVRULrlisted File number E10S039

4.25r 1.175-24 TPI

illuminatedgreen indicator Erlha E

2.75

GENERALThe model APVR phase-sensing relay performs similarlyto the model LPVR, except that the relay requires noadjustments. It will fit in the push button bracket, andthus does not increase the required unit spacing.Model APVR specifications:•Fail-safe — will not operate if a fault is present•Manual or automatic reset•Fixed undervoltage trip point: Approximately 90%

pickup, 80% dropout•Operates at 6% phase unbalance•Maintains operation with a 6% phase voltage loss•3-second dropout delay to avoid nuisance tripping•Operational green LED indicator•Isolated Form “C” output contacts•Output contact rating: 250 volts AC, 5 amperes (gener-

al use); 30 volts AC, 5 amperes (resistive)

G

Table G.24 Three-phase voltages available with Model APVR

Catalog number Nominal rating Voltage range Frequency

60 Hz95-135APVR 120 120

190-270 60 HzAPVR 240 240

380-530 60 HzAPVR 480 480

455-600 60 HzAPVR 575 575

300-425 50 HzAPVR380 380

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INPUTSThe PL-EPM requires CT inputs with a 5-ampere sec-ondary current. The meter can accept direct input volt-ages up to 600 volts and is self-powered from the voltageinputs. Three CTs are required for four wire wye-systemsand two CTs are required for three wire delta-system.

POWER LEADER EPMGENERALThe POWER LEADER EPM is a microprocessor-baseddevice that displays a full range of over 50 metered val-ues with revenue class accuracy of 0.5%. The PL-EPM isavailable with a communication option that is factory- orfield-installable so that all data can be transmitted to aremote host computer.

.«

FEATURESThe PL-EPM comes in the standard SI case as thepresent DS-63 and DS-65 electromechanical watt-hourmeters. This provides the user the ability to retrofit theelectromechanical meters with the PLrEPM. Metered val-ues cover a full range of parameters:•Revenue Class accuracy of 0.5%•Optional communications provide connectivity to

POWER LEADER network (Commnet)•Pulse initiation option with programmable outputs

(kWh, kVArh, kVAh, kQh)

3-phase and neutral (0.25% accuracy)

LrL and LrN (0.25% accuracy)

per phase, 3-phase total, peak watts, wattdemand, and watts at maximum kVA

kwh, kVAh, kVArh lag and lead, and kQh

per phase, 3-phase total, peak kVA andkVA demand

G AmperesVolts

Watts

SU16Energy

Volt-amperes2U.—2^ 77 32a

4 HOLES IOKVARs per phase, 3-phase total, peak kVAr,

peak kVAr lead, kVAr demand, kVArdemand lead

i 13zh I 43216

eii* 16Power factor per phase, 3-phase total, average, powerfactor at previous interval, power factorat maximum kVA

60 Hzcheck factory for 50 Hz availabiltiy

216 4*32ooFrequency

FttNEL 0R 1LLING FOR SEMt-FLUSH MOUNTING(FRONT VIEW )

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GROUND FAULT SYSTEM SENSORS

Model number Trip current Window sizeMODEL GFMUL-listed File number El10395 GFM 250

GFM 4623.5 to 11A t o 1 2

2.5”4.62”

3.75 3 84—3.10—0 75-H r-- j3.25 0.50

3.05

J-jg! \^\ W I1

1"W1 !40 585.20* A 5 64 i cH!

3.27 j 3.50 i!I

1 h nL -itil n n :&i

i_

i

0.25 -^ —- - (4) # 5-32 ^ nse-tsScrews ir- ciuded

0.30

•Self powered.•Temperature range: -30° C to 75° C.•Positive “ON” (green) and “OFF” (red) condition

indication, manual reset.•Instantaneous only (GFM-353) standard.•Optional time delay from instantaneous to 36 cycles

(GFM-363).

G

GENERALThese Class1model GFM ground fault protectionsystems are designed to minimize damage or. loss toequipment caused by destructive arcing ground faults.This GFM system is designed for all polyphase applica-tions and is ideally suited for motor control, motor con-trol centers and high-voltage starters. Systems can be wyeor delta, grounded or resistance grounded. When theground fault current exceeds a preselected condition(current only, or current and time settings) , the relaytrips. The relay contacts can be connected in the controlcircuit of a motor starter, to the shunt trip of a circuitbreaker or similar disconnecting or alarm devices. Thesystem has an inverse time characteristic to prevent nui-sance tripping. The relay tripping current value is fieldadjustable over the trip current range of the sensor. Theadjustable trip time delay relay, when specified, is fieldsettable up to 36 cycles.

3 67

2 4*

J 5l—— TO CURRENT SENSOR X1 AND X2

All contacts shown with therelay in the tripped position.

* 101MainAuxiliary

MODEL GFM 353Main contact rated 30 amperes, 277 volts AC.Auxiliary contacts rated 10 amperes continuous,23 amperes inrush, 120 volts AC.

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AC ROTATING-MACHINE PROTECTION2.75" 4.62"(69,9mm)(117

^3mm)DIELEKTROL* PROTECTIVE CAPACITORS

0-18,000-ft. altitude *DIELEKTROL is the GE non-PCB power capacitordielectric system, developed to provide an environmen-tally acceptable product with superior performance andreliability. The DIELEKTROL insulating liquid is a ClassIIIB combustible fluid.Protective capacitors contain a film dielectric and her-metically sealed bushings, which permit mounting ofcapacitors in an upright position or on the side.

0.500* (12.7mm)*138-20* a, 8.20* ^J (208.3mm)T(208.3mm)|^ ±0.50 A ±0.50

thd

I16.31"

(414.3mm)

6 75”(171.5mm)

I h 0.500* x 0.625*(12.7mm) (15.9mm)I slots (2)

Three-pole capacitor, 4160 volts

I 13.50* (342.9mm)-H Ik—15.62' (396.8mm)—H\m -16.58* (421.1mm)—

Table G.25 DIELEKTROL non-PCB dielectric protective capacitors with internal discharge resistors — indoor and outdoor mounting

Approximatenet weightPolesVoltage rating

RMSvolts L-L

Maximumvoltage

RMS volts L-LG Microfaradsper pole

Catalognumber

perKgLbunit

15.83518L15UJ 3 1.52400 or 4160 4576

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TRANQUELL® XEPm—STATION ARRESTERSPOLYMER HIGH-VOLTAGE

DESCRIPTIONTranquell XEP polymer station arresters provide bothexcellent protective characteristics and temporary over-voltage capability. Gapless construction results in adesign that is simple, reliable and economical whileoffering excellent pressure relief capability to meet the

most demanding service conditions. The GE arrester is basedon the field-proven Zenox — metal oxide disks known formaintaining stable characteristics. Tranquell station arrestersare designed and manufactured in accordance withANSI/IEEE C62.ll.

1.75—I

11.754.00 o o T 1. u2.86NAMEPLATES5*

GROUND TERMINAL5.00 R-j2 5*u5.00Ld ^ .,x« 2.68

I2 5P

GALL LINE AND GROUNDTERMINALS ACCOMMODATE

CONDUCTOR SIZESFROM #2 AWG TO 350 MCM

1.75

LINE TERMINALFOR 9L11XPBc»

9L11XPA WITH4-HOLE “NlMA PAD

Table G.26 Polymer arrester (station-class) ratings

Normally used on systemvoltage class (L-L)Arrester

rating (D(kV RMS)

Maximum continuousoperating voltagecapability© (L-N)

(kV RMS)

Single-pole arresterCatalog number

Gray polymer housing with eyebolt(small diameter)

Delta or impedancegrnd. neutral sys.

(kV RMS)

Solidly grnd.neutral sys.(kV RMS)

3 2.55 2.4 4.16 9L11XPB0039L11XPB0066 5.10 4.8

<D TRANQUELL arresters are designed to be operated at voltages equal to or less than their continuous capability. Note: For ratings above 360kV, contact factory.@ Application of specified rating is permissible for ungrounded or resistance grounded system where a single phase ground may be tolerated for a substantial period of time not to exceed

the TRANQUELL arrester’s overvoltage capability as described in GET-6951.Note: Contact factory or GE Sales Office for Design Test data.

Table G.27 Polymer station arrester weights and dimensions

Min. Mounting Spacing on Center

Catalog Number Height (X) Creep Weight Min. Phase to Phase Phase toGroundClearance

ArresterRating

(kV rms) In In lb kg In In Inmm mm mm mm mm

9L11XPB0039L11XPB006

3 7.9 200.7 17.2 436.9 7.9 3.6 2.0 50.8 12.3 312.4 7.7 195.66 7.9 200.7 17.2 436.9 8.1 3.7 3.0 76.2 12.3 312.4 7.7 195.6

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GE Medium VoltageMotor Control Application Data

STANDARD SERVICE CONDITIONS mates are based upon a single full-voltage non-reversing400 ampere induction motor controller with basic paneloptions.Limitamp equipment is designed for the following stan-

dard conditions: Operating ambient temperature -20° Cto 40° C. Storage ambient temperatures -40° C to 70° C;strip heaters with thermostat control are recommendedat 0° C. One heater per enclosure. Thermostats may con-trol up to 14 heaters.

— Altitude to 3,300 feet above sea level

— Humidity 0 to 90 percent (non-condensing)

— CR194 Vacuum - 370 watts per contactor

— CR7160 Air break - 670 watts per contactor

STANDARDS AND CODESLimitamp controllers are designed to meet NEMAStandard ICS 3, Part 2 for Class E2 Controllers, and ULStandard 347 for high-voltage industrial controlequipment under UL File E57411.When specified, Limitamp control may be built to complywith the City of Chicago Code and the California Code.

Each ULrlisted section includes a UL section nameplateand each ULrlisted motor controller includes a UL con-troller label.Additional information can be found in Table A.3.

SEISMIC CAPABILITYVacuum Limitamp Controllers can be used in variousapplications subject to shock and/or vibration. Certaincontrollers will withstand forces generated by a Zone 4earthquake as defined in 1985 uniform building code fornon-essential equipment when properly anchored atground level.For Limitamp control with seismic capability, or othervibration-type applications, refer your application detailsto the factory. GE UL-LISTED VACUUM CONTROLLERS

A. Full-voltage non-reversing induction motor starters,2400-4800 volts, up to 400 amperes rating.

B. CR194 one-high NEMA 1 enclosure, 26W or 34W x90H x 30D, with stationary mounted vacuum contac-tor and DC operating coil.CR194 two-high NEMA1 enclosure, 36W or 40W x90H x 30D, with stationary or drawout mountedvacuum contactor and DC operating coil.

C. GE Type RA or RB current limiting power fuses.D. Ambient compensated thermal overload relays

(CR324C).E. Solid state overload (CR324CX).F 1000 or 2000 amp copper main bus. (Refer to factory

for 1200 amp main bus application)

G. Phase and ground current transformers.H. Control power transformer with primary and

secondary fuse protection.

ALTITUDE DERATINGVacuum Limitamp Controllers, including power fuses,require the following derating for use at high altitudes:

For current — No derating required up to 6,000 feetabove sea level.

— Above 6,000 feet, derate by 0.9 percentfor every 1,000 feet above sea level.

For voltage — No derating required up to 3,300 feetabove sea level.

— Above 3,300 feet, derate by 2 percent forevery 1,000 feet above sea level. BILrating is also derated by the samepercentage.

H

TEMPERATURE DERATINGVacuum Limitamp Controllers require the following cur-rent derating for ambient temperature. Use only bolt-onfuses.

— Up to 40° C — No derating

— 40-45° C

— 45-50° C

GE UL-LISTED AIR MAGNETIC CONTROLLERSA. Full-voltage non-reversing induction motor starters,

2400-4800 volts, up to 400 ampere rating.B. CR7160 one- high construction in 34W x 90H x 30D

or two- and three- high construction in 44W x 90H x30D, in NEMA1 enclosures.

C. Same as listed above for C, D, F, G.D. 1000 or 2000 amp copper main bus, silverplated.

— Derate 10 percent

— Derate 20 percent

— Above 50° C — Consult factory on the application

ESTIMATED HEAT LOSSThe following data can be used for estimating heat lossof Limitamp controllers at rated load amps. The esti-

H1




APPROVED COMPONENTS FOR GE CONTROLLERSA. Any ULrlisted low-voltage component

B. Current transformers

C. Control wire, Type MTW, THW, SIS, XHHN

D. Power wire — MV-90 DryE. Control power transformers

See Table A.3 for details.

STANDARD PAINT SYSTEM — INDOOR&OUTDOOR EQUIPMENTThe standard Limitamp paint system consists of thefollowing two processes:Phase I — Cleaning

In a seven-stage spray washer, steel parts are cleaned andsprayed in controlled cleaning solutions.Cleaned steel parts enter a drying oven at 300-350° F.The preceding operating parameters have been deter-

Chemical Solution(s)Stage Temperature

115-120° Rldoline1 — Cleaning

105-118° Bonderite2 — Rinse

Bonderite, Soda Ash90-105°3 — Iron Phosphate

None4 — Rinse Ambient

Ambient Parcolene5 — Acidated Rinse

Ambient None6 — Rinse

7 — Deionized Rinse Ambient None

mined to produce an Iron Phosphate coating of a mini-mum of 150 milligrams per square foot to meet MILSpec. TT-C-490.Phase II — Painting by electro-static powder process

670-011 ANSI-61 Polyester Finish Paint (Light Gray)Metal parts will enter a drying oven at 375-400° F andremain for 20 minutes. The standard color finish isANSI-61 light gray with a gloss of 60 plus or minus fiveand a thickness of 2.5 mils. This system will withstand aminimum of 1000 hours salt spray test.

H2




STANDARD COMMERCIAL TESTSAND INSPECTIONS

circuit-breaker-door interlocks, operating handles, tripmechanisms, solenoid armature travels, contact wipes,electro-mechanical interlocks, physical clearances formechanical and electrical isolation including any addi-tional mechanically related operating functions shall beverified.

GENERALThe following summary description defines the standardfactory tests and inspections performed during manufac-ture of Limitamp Control. All Limitamp equipment istested and inspected for conformance with NEMA ICS 3part 2 and UL347.Production tests and inspections encompass the verifica-tion of physical configuration of assembly and workman-ship, the mechanical adjustments of parts and compo-nents, and the sequencing and functional operations ofthe control systems. These tests and inspections are per-formed on manufactured products to verify confor-mance of the equipment to a previously qualified design.The tests do not include type testing or other destructivetests on equipment to be shipped to a customer.Any additional factory tests beyond those listed in the fol-lowing paragraphs must be referred to the factory to veri-fy availability of test facilities and qualified manpower.Additional testing beyond the scope of the followingstandard commercial tests will affect normal shipmentschedules.

CONTINUITY TESTS — CONTROL WIRING ANDPOWER CABLESThe correctness of the individual circuit wiring con-tained in each assembly and the assembly wiring inter-faces shall be verified as in accordance with the connec-tion diagram, wiring table, or elementary drawing. Thecontinuity of each circuit shall be checked.

OPERATIONS TESTAll equipment shall be subjected to an operational test.The test shall verify the functional operation of the con-trol and power circuits and related components, devicesand subassembly-modules under simulated operatingconditions (excluding loading of the power circuits).a. Devices

All devices, including subassembly-modules, shall beoperated, set and checked for their functional character-istics in accordance with the instructions for each andany additional characteristic peculiar to the device:

• Pick-up

• Drop-out

• Contact wipe

• Amperes

• In-rush current

• Time-delay

Contactors must pick-up and hold-in at or below thefollowing percentage of rated coil voltage:

PRODUCTION TESTSThe following list of inspection activities shall be per-formed to assure proper and correct materials, workman-ship and for any damage conditions in accordance withthe manufacturing documentation and drawings:

• Components, parts and material• Physical condition of components, parts, wire

insulation• Location and orientation of components and parts• Finish — plating — painting• Wire/cable type, size, insulating and clamping sup-

port• Wire terminations, insulation removal and crimping

of terminals• Tightness of electrical connections and torque of bus

bar bolts• Wire markers and terminal markers (where specified)• Labeling of components, parts, etc.• Tightness torque of assembly bolts and hardware• Welds (spot only)• Mechanical clearance• Electrical clearance (potential hazards)

Pick-up(Percentage)

Device VoltageSourceType

DC 65DC

AC AC 850

AC with rectifier 70 with holding resistorDC

AC with rectifier 70 with holdingand pick-up resistor

DC

MECHANICAL OPERATION TESTSMechanical operating tests shall be performed to ensureproper functioning of operating mechanisms and inter-locks. The operation of shutters, mechanical interlocks,

O If a CPT is used, apply 90% voltage to transformer primary.

H3




b. For equipment rated over 600 volts RMS or DC:

Two-and-a-fourth times rated plus 2000 (60 secondsonly).The frequency of the test voltage shall not be less thanthe rated frequency of the equipment tested and shall beessentially sinusoidal in wave shape.Note: Consideration shall be made for low-voltagedevices, semiconductors, meters, instruments, transform-ers, grounding circuits, etc., in preparation for thedielectric tests.

b. Sequence and timing circuits

Assemblies and systems involving sequential operation ofdevices and time delays shall be tested to assure that thedevices in the sequence function properly and in theorder intended.c. Polarity — phase-sensitive circuits

The polarity of direct-current circuits and phase connec-tions of alternating-current circuits shall be verified byapplication of power and measurement of the relativepolarities and phase sequence.d. GroundingThe grounding circuits and buses shall be certified.

INSULATION RESISTANCE (MEGGER) TESTSInsulation resistance tests measure the amount of circuitresistance to current leakage. This test is performedwhen this resistance measurement is desired and sospecified.The test voltage and minimum insulation resistance shallbe selected as specified. Examples of test values are:

a. 500 volts DC with 10 megohms minimumb. 1000 volts DC with 1 megohm minimumc. 1000 volts DC with 25 megohms minimum

Desired values must be specified by the customer, as noNEMA standard defines Megger values for motor controls.

HIGH POTENTIAL — INSULATION TESTSa. Control wiring insulation tests

A dielectric test (hi-pot) shall be performed on circuitwiring to confirm the insulation resistance to withstandbreakdown to a selected test voltage. The test voltage —amplitude and waveshape, method of application andduration of time applied — shall be specified in UL347.b. Power cable insulation and isolation test

Power cables and buses shall be tested, phase-to-phaseand phase-to-ground for insulation breakdown resistanceand circuit isolation as specified in UL347.Note: These test conditions are as specified for newlyconstructed equipment and performed in a clean, tem-perature and humidity controlled factory environment.

Rated Circuit VoltageAC or DC

High PotentialTest Voltage

Duration of Test

1 second120 1500

1 second140 1800

1 second480/600 2700

60 seconds2300 7200

60 seconds5000 13,250

18200 60 seconds7200

These test voltages include the standard test voltages:

a. For equipment rated under 600 volts RMS or DC:

Two times rated plus 1000, times 120 percent (for one-second application).

H4




ANSI STANDARD DEVICE FUNCTION NUMBERS

AC Time Overcurrent Relay51Dev.No. FunctionAC Circuit Breaker52Master Element1Exciter or DC Generator RelayTime-Delay Starting or Closing Relay 532(Reserved for future application)54Checking or Interlocking Relay3Power Factor RelayMaster Contactor 554Field Application Relay56Stopping Device5Short-Circuiting or Ground DeviceStarting Circuit Breaker 576Rectification Failure Relay58Anode Circuit Breaker7Overvoltage Relay59Control Power Disconnecting Device8Voltage or Current Balance Relay60Reversing Device9(Reserved for future application)61Unit Sequence Switch10Time-Delay Stopping or Opening Relay62(Reserved for future application)11Pressure Switch63Over-Speed Device12Ground Protective Relay64Synchronous-Speed Device13Governor65Under-Speed Device14Notching or Jogging Device66Speed or Frequency Matching Device15AC Directional Overcurrent Relay6716 (Reserved for future application)Blocking RelayShunting or Discharge Switch 6817Permissive Control Device69Accelerating or Decelerating Device18

70 RheostatStarting-to-Running Transition Contactor1971 Level SwitchElectrically Operated Value2072 DC Circuit Breaker21 Distance Relay

Load-Resistor Contactor73Equalizer Circuit Breaker2274 Alarm RelayTemperature Control Device23

Position Changing Mechanism(Reserved for future application) 752476 DC Reclosing RelaySynchronizing or Synchronism-Check Device25

Pulse TransmitterApparatus Thermal Device 7726Phase-Angle Measuring or Out-of-Step Protective Relay7827 Undervoltage RelayAC Reclosing Relay7928 Flame DetectorFlow SwitchIsolating Contactor 8029Frequency Relay81Annunciator Relay30

82 DC Overcurrent Relay31 Separate Excitation DeviceAutomatic Selective Control or Transfer Relay8332 Directional Power RelayOperating Mechanism8433 Position SwitchCarrier or Pilot-Wire Receiver RelayMaster Sequence Device 8534

86 Locking-Out RelayBrush-Operating or Slip-Ring Short-Circuiting Device35Differential Protective Relay87Polarity or Polarizing Voltage Device36Auxiliary Motor or Motor Generator88Undercurrent or Underpower Relay37Line Switch8938 Bearing Protective DeviceRegulating Device90Mechanical Condition Monitor39Voltage Directional Relay9140 Field RelayVoltage and Power Directional Relay9241 Field Circuit BreakerField-Changing Contactor93Running Circuit Breaker42

94 Tripping or Trip-Free RelayManual Transfer or Selector Device4395Unit Sequence Starting Relay44

Used only for specific applications in individualinstallations where none of the assigned numberedfunctions from 1 to 94 are suitable.

Atmospheric Condition Monitor 9645Reverse-Phase or Phase-Balance Current Relay 9746

98Phase-Sequence Voltage Relay47Incomplete Sequence Relay 9948Machine or Transformer Thermal Relay49Instantaneous Overcurrent or Rate-of-Rise Relay50

H5




Table H.3 Fuse Selection Based On Full Load CurrentTable H.1 Motor Current Limiting Fuse And Current Transformer RatioSelection (For Estimating Only) Based Upon 600% Locked Rotor Cuirent

FUSE SELECTIONS (Assumes 600% locked rotor)Motor

HorsepowerCT EJ2 Typical CT EJ2Typical

3RRatio Rating Ratio Rating 0- 44AFLA FLA

4R4160 volts 45-62A2400 volts

6R3R 3R 63-94A150 35 50/5 20 25/5

9R200 4R 40/5 3R 95-140A46 75/5 25

12R250 4R 50/5 3R 141-184A75/5 3357

185-276A 18R300 6R 75/5 3R69 100/5 41

24R6R 75/5 4R 277-360A350 81 150/5 47

P4256R 4R 361-408A400 92 150/5 54 75/5

P5509R 75/5 4R 409-510A450 105 150/5 60

P630500 9R 100/5 6R 511-630A113 150/5 66

631-800A P8009R 100/5 6R550 123 200/5 73

600 9R 100/5 6R135 200/5 80Table H.4 Fuse Ratings For Transformer Feeders(For Estimating Only)12R 6R650 145 200/5 87 150/5

6R700 155 200/5 12R 93 150/5 2400 volts 4160 volts9R750 300/5 12R 100 150/5166 Three- Phase

TransformerFull LoadCurrent

Full LoadCurrent

FuseFuse9R800 176 300/5 12R 106 150/5

12R 9R 2.16 7E 1.25 5E850 186 300/5 113 150/5 9

9R 3.6 10E 2.08 7E900 300/5 18R 120 150/5 15197

7.2 4.2950 300/5 18R 126 200/5 9R 30 20E 15E207

10.8 6.218R 200/5 9R 45 25E 15E1000 218 300/5 133

10.41200 18R 200/5 12R 18 30E 25E266 400/5 152 75

27 15.61250 400/5 18R 200/5 12R 112.5 40E 30E279 158

36 20.81500 300/5 12R 150 50E 40E187

31.31750 300/5 18R 225 54 65E 50E217

18R 300 72 100E 41.6 50E2000 246 400/5

500 120 150E 69.4 80ETable H.2 CT Ratio Based on Rated Load Current

750 180 200E 104 125ECurrentCurrent CT Ratio CT Ratio 1391000 240 250E 150E

10-14A 121-160A 200/520/5 2081500 361 400E 250E161-255A 300/515-24A 30/5 2000 278 300E256-355A 400/525-40A 50/5 2500 347 400E356-480A 600/541-60A 75/5

61-80A 481-670A 800/5100/5

81-120A 150/5

H6




ESTIMATING POWER FACTOR CORRECTION CAPACITOR RATINGS

Table H.5 2400-Volt and 4160-Volt Motors, Enclosure Open — Including Drip-proof and Splash-proof, GE Type K (NEMA Design “B”),Normal Starting Torque and Current

Nominal Motor Speed in RPMNumber of Poles

6007201200 9001800InductionMotor HPRating

360012106 842

kVAr %kVAr % kVAr %kVAr %kVAr % kVAr %ARARAR ARAR AR

14 25 2050 24 2525 1225 111002014 5012 25 13 2525 9 251252050 14 7525 12 50 1325 9150 25 9

14 100 2050 13 759 50 129 50200 252014 10012 75 13 7525 8 5025 9250

125 2013 100 1412 1009 50 8 75300 5019100 14 12512 100 1250 8 75350 75 9

14 150 1912 125100 12 1009 50 8400 751914 150125 11 1258 100 12100 9 75450

200 1911 150 14125 12 1259 100 8500 10014 200 17150 11 150175 12125 9 125 8600

200 1510 200 1411 150150 8 200700 150 815225 13 250175 10175 10175 8 150 7800

Table H.6 2400-Volt and 4160-Volt Motors,Totally Enclosed, Fan-cooled, GE Type K (NEMA design “B”), Normal Starting Torque and Current

Nominal Motor Speed in RPMNumber of Poles

6007201200 9001800InductionMotor HPRating

3600128 1062 4

kVAr %kVAr %% kVAr %kVAr % kVArkVAr %AR ARARARAR AR12 50 1550 22 251725100

50 1517 25 1225 15 5050 1712512 75 1550 17 5012 50 1525 6 25150

100 1517 50 1215 506 50 12 75200 251512 10017 7511 75 15 7525 6 50250

125 15125 17 100 12136 50 11 75300 5015125 12 15013 125 1760 11 75350 50 6

200 15150 17 150 12125 136 125 11400 75200 12 225 1513 175 1710 150450 6 12575

225 1517 225 12175 13 2256 125 8500 75

H7




Table H.7 2400-Volt and 4160-Volt Motors, Enclosure Open —Including Drip-proof And Splash-proof, GE Type KG (NEMA design“C”),High-starting Torque,Normal Starting Current

Nominal Motor Speed In RPMNumber of Poles

InductionMotor HP

Rating

1800 1200 900 7204 6 8 10

kVAr % AR kVAr % AR kVAr % AR kVAr % AR

25 14100

125 25 10 25 11 25 13 25 14

150 25 8 25 9 50 13 50 14

200 25 7 50 12 50 13 75 14

250 25 8 50 12 75 13 75 14

300 50 8 75 12 100 13 100 14

350 50 8 75 12 100 12 100 14

Table H.8 2400-Volt and 4160-Volt Motors, Totally Enclosed, Fan-cooled, GE Type KG (NEMA Design “C”), High-starting Torque,Normal Starting Current

Nominal Motor Speed In RPMNumber of Poles

1200InductionMotor HP

Rating

900 720 6006 8 10 12

kVAr % AR kVAr % AR kVAr % AR kVAr % AR

75

100 25 12 50 15

125 25 10 50 17 25 12 50 15

150 50 17 50 12 75 15

200 15 50 17 50 12 100 1575

H8




ESTIMATED TYPICAL KW RATINGS OF EXCITERS FOR 60-HERTZ SYNCHRONOUS MOTORSWhen synchronous motors have individual exciters, the kilowatt ratings in Table H.7 represent typical kilowatt ratingsfor such exciters.

Table H.9 Exciter ratings for synchronous motors, 60 Hz,1.0 power factor

Exciter Ratings, kW

200 180360 300 240514 450 4001200 900 720 600HP RPM 1800

6.5 6.54.5 6.5 6.54.5 4.5 4.53.0 3.0 3.0 4.5200 2.0

9.0 9.06.5 6.5 6.54.5 4.5 6.53.0 3.0 4.5 4.5250 2.0

9.0 9.06.5 6.5 9.04.5 6.5 6.53.0 4.5 4.5 4.5300 2.0

9.0 9.06.5 9.06.5 6.5 6.54.5 4.5 6.5350 3.0 3.0 4.5

139.0 9.0 9.06.5 6.5 6.54.5 4.5 6.5 6.5400 3.0 3.0

13 139.0 9.0 9.06.5 9.04.5 4.5 6.5 6.5450 3.0 4.5

13 139.0 9.0 9.06.5 6.5 9.04.5 4.5 6.5500 3.0 4.5

13 139.0 9.0 139.0 9.06.5 6.5 6.5 6.5600 3.0 4.5

13 1313 139.0 9.0 9.06.5 6.5 9.0700 4.5 4.5 6.5

1313 139.0 13 13 139.0 9.0800 4.5 6.5 6.5 6.5

1713 13 1713 139.0 9.0 9.0 9.0900 4.5 6.5 6.5

1713 13 1712 13 139.0 9.0 9.01000 4.5 6.5 9.0

1713 17 1712 13 139.0 9.0 13 131250 6.5 6.5

2117 17 2112 17 1713 13 131500 6.5 9.0 9.0

2121 2117 17 17 1713 13 131750 9.0 9.0 13

2521 2117 17 2113 13 17 172000 9.0 13 13

2521 21 2517 21 2113 17 172250 9.0 13 13

25 2521 21 2521 2113 17 17 172500 13 13

33 3321 25 2521 21 2113 17 17 173000 13

33 3325 25 3321 25 2517 21 213500 13 17

33 4033 33 3325 25 3321 21 214000 17 17

40 4033 33 3333 3321 25 254500 17 21 21

40 4033 33 4033 33 3321 25 25 335000 17

40 4033 33 33 4033 33 3321 25 25 255500

40 50 5040 40 4033 33 3321 25 33 336000

H9




Table H.10 Exciter ratings for synchronous motors, 60 Hz,0.8 power factor

Exciter Ratings, kW

HP RPM 1800 1200 900 720 600 514 450 400 360 300 240 200 180

13200 3.0 4.5 4.5 4.5 6.5 6.5 6.5 9.0 9.0 9.0 13 13

250 3.0 4.5 6.5 6.5 6.5 6.5 9.0 9.0 9.0 9.0 13 13 13

300 3.0 4.5 6.5 6.5 6.5 9.0 9.0 9.0 9.0 13 13 13 13

350 4.5 4.5 6.5 6.5 9.0 9.0 9.0 9.0 9.0 13 13 13 17

400 4.5 6.5 6.5 6.5 9.0 9.0 13 13 13 13 13 13 17

450 4.5 6.5 6.5 9.0 9.0 9.0 13 13 13 13 17 17 17

500 4.5 6.5 6.5 9.0 9.0 9.0 13 13 13 13 17 17 17

600 6.5 6.5 9.0 9.0 13 13 13 13 13 17 17 17 21

700 6.5 9.0 9.0 9.0 13 13 13 13 13 17 17 17 21

800 6.5 9.0 9.0 13 13 13 17 17 17 17 21 21 21

900 6.5 9.0 13 13 13 13 17 17 17 17 21 21 25

1000 9.0 9.0 13 13 13 17 17 17 17 21 21 21 25

1250 9.0 13 13 13 17 17 21 21 21 21 25 25 33

1500 13 13 17 17 17 17 21 21 21 25 25 25 33

131750 13 17 17 21 21 25 25 25 25 33 33 33

2000 13 17 17 21 21 21 25 25 25 33 33 33 40

2250 13 17 21 21 25 25 33 33 33 33 33 33 40

2500 17 17 21 21 25 25 33 33 33 33 40 40 40

3000 17 21 25 25 33 33 33 33 33 40 40 40 50

3500 21 25 25 33 33 33 40 40 40 40 50 50 50

4000 21 25 33 33 33 40 40 40 40 50 50 50 65

4500 25 33 33 33 40 40 50 50 50 50 50 50 65

5000 33 33 40 40 40 40 50 50 50 50 65 65 65

5500 33 33 40 40 50 50 50 50 50 6565 65 65

6000 33 40 40 50 50 50 65 65 65 65 65 65 85

H10



GE Medium VoltageMotor Control Elementary Diagrams

UMITAMP CONTROL STANDARD NOMENCLATUREGROUND FAULT RELAYAUX. RELAY TO GFGREEN INDICATING LIGHTGROUNDGROUND BUSGROUNO SENSOROUTGOING TERMINALS TO TRANSFORMERHEATER AMMETERISOLATING SWITCHINCOMPLETE SEQUENCE RELAYANTI-KISS RELAYLATE OPENINGINCOMING TERMINALS OR AC BUSLIGHTNING ARRESTORLIGHTLOCKOUT RELAYLIGHT SWITCHLODTRAK 4 MOTOR PROTECTION RELAYLODTRAKAUX.RELAYMULTILIN MOTOR PROTECTION RELAYMULTILIN MOTOR MANAGEMENT RELAYMULTILIN MOTOR MANAGEMENT &

COMMUNICATION RELAYMAIN CONTACTORDIGITAL TIME OVERCURRENT RELAY SYSTEMMOTORMETAL OXIDE VARISTORMULTILIN MOTOR PROTECTION RELAYCONTACTOR HOLDING RESISTOR RELAYMAIN DISCONNECT SWITCHMULTILIN METERING & TRANSDUCER MODULEMULTILIN METERING & TRANSDUCER MODULEAUX. RELAY TOMNEUTRAL CONTACTORAUX. RELAY TONOPERATIONS COUNTEROVERCURRENT RELAYOVERLOAD RELAYOVERTEMPERATURE RELAYAUX.RELAY TO OTPOLARITY MARKPUSH BUTTONPOWER FACTOR CAPACITORPOWER FACTOR METER

RS RESISTORRESISTANCE TEMPERATURE DETECTORAUX.RELAY TORSTART CONTACTORSURGE CAPACITORSTATIC FIELD CONTACTORSUP-GUARD RELAYSHUNTSPACE HEATER AMMETERSPACE HEATERSTALL PROTECTIVE RELAYSTARTING REACTORMULTILIN FEEDER RELAYMULTILIN FEEDER RELAYSLOW SPEED CONTACTORSLOW SPEED SHORTING CONTACTORSELECTOR SWITCHAUX. RELAY TO SS

liSPM MICROPROCESSOR BASED STARTING &PROTECTION MODULE

AC AMMETERDC AMMETERACCELERATING CONTACTORAMBER INDICATING LIGHTAMMETERAMMETER SWITCHAUTOTRANSFORMERACCELERATION TIMING RELAYBLOWN FUSE INDICATORBLOWN FUSE INDICATOR POWER SUPPLYBLOWN FUSE TRIPBLUE INDICATING LIGHTCAPACITORCLOSING COILCIRCUIT BREAKERCALIFORNIA DISCONNECTCHOKEFIELD CURRENT CALIBRATION MODULECAPACITOR TRIP DEVICECONTROL POWER INTERLOCKAUX. RELAY TO CPICONTACTOR POSITION SWITCHCONTROL RELAYCURRENT TRANSFORMERCURRENT TEST BLOCKCURRENT TRANSDUCERCONTACTOR TIMING MODULEDIODEDC CURRENT TRANSFORMERDIGITAL MOTOR PROTECTION AND

CONTROL SYSTEMDIFFERENTIAL RELAYDISCONNECT TERMINAL BOARDDISCONNECT SWITCHEXCITER FIELD RELAYELECTRONIC POWER METERELAPSED TIME METEREXCITEREXCITER THEOSTATSYNC. MOTOR FIELD LEADSFIELD CONTACTORAUX. FIELD RELAYAUX. FIELD RELAYFIELD DISCHARGE RESISTORFIELD GROUND RESISTORSYNC.MOTOR FIELDFIELD LOSS RELAYFILTERFIELD RECTIFIER PANELFAST SPEED CONTACTORFAST SPEED SHORTING CONTACTORAUX. RELAY TO FSFEEDER SWITCHFIXED TAP RESISTOR

GFRTDGFX

1AM RXGIL2AM SGNDA SCGRBAIL SFCGSAM S-GRH1.H2.H3AMS SHHAMAT SHAM

SP HTRISW

AX IXRBFI SPRKXBFIPS SRL.O.BFT SR735

SR737L1.L2.L3

BIL LAC SSLITCC SS1LORCB SSWLSWCD SSXLT-IVCH ST STABLTARCM STB SHORTING TERMINAL BOARD

AUX. RELAY TO STRANSFORMERAUX. RELAY TO TIMING MODULETIME CLOSINGTIME DELAY AFTER DE-ENERGIZATIONTIME DELAY AFTER DE-ENERGIZATIONTIME OPENINGOUTGOING TERMINALS TO MOTORTERMINAL BOARDTHERMOSTATTHYRITETIE SWITCHTIMING MODULETEST POWER INTERLOCKAUX. RELAY TO TPITEST POWER SWITCHTIMING RELAYTRIP RELAYTHERMOSTAT ON AT OR SRTEST-NORMAL SELECTOR SWITCHUNLATCH COIL OR CONTACTUNLATCH RELAYUNDERVOLTAGE RELAYUNDERVOLTAGE TIMING RELAYVOLTAGE CHECK RELAYVOLTAGE DIVIDER NETWORKELECTRONIC VARIABLE FIELD CONTACTORVARIABLE FIELD SUPPLY MODULEVOLTMETERVOLTMETER SWITCHVARMETERVAR TRANSDUCERVARIABLE AUTOTRANSFORMERVOLTAGE TRANSDUCERWATTHOUR DEMAND METERWATTHOUR METERWATTMETERWATTS TRANSDUCER

M139CPD SXM269CPI TM269+CPIX TACPS M TCCR MDP200 TDADCT MOT TDAE

MOVCTB TOCTD MP4A T1.T2.T3CTM MR TBD MSW THDCCT MTM THYDMP MTM+ TIE

MX TMDR N TPIDSTB NX TPIXDSW OC TPSWEFR OCR TREPM OL TRPETM OT TSTD EXC OTX TSWEXC RHEO PM UCF1.F2 PB ULFC PFC UVFCX PFM UVTRFCY PLUGPG VCRFDRS PHA.PHB.PHC INCOMING LINE TERMINALS

OPEN PHASE & PHASE SEQUENCE RELAYPOWER LOSS RELAYCT PROTECTOR (THYRITE)PHASE SHIFTING TRANSFORMERPOTENTIAL TRANSFORMERPOTENTIAL TEST BLOCKRUN OR REVERSE CONTACTORRECTIFIER & VOLTAGE DROPPING CAPACITORRECTIFIERRECEPTACLEREVERSE CONTACTORRED INDICATING LIGHTRECTIFIER CONTACTOR

VDNFGRS PHF VFCFLD PLR VFSMFLR PRO VMFLTR PST VMSFRP PT VRMFS PTB VRTDFS1 R VTFSX RC VTDFSW REC WHDMFTRS RECP WHMFU FUSE REV WMGCT GROUND CURRENT TRANSFORMER RIL WTD

RM

This diagram shows starter with the isolating switch in the disconnect position and the test power interlock in the test position.To test:Handle must be in the disconnect (OFF) position, and test-normal selector switch (located in the low voltage compart-ment) must be in the TEST position. Purchaser is to connect his test power to the proper terminals and note that the controlcircuit is not grounded when disconnects are open. Be sure to turn the test-normal switch to NORMAL before moving thedisconnect handle to the ON position.CPI — Opens only when CPI release on isolating switch handle is pushed in. Can not be opened when main line contactor is

closed.A — Start and stop push buttons are wired through terminal at “TB” in order that remote START-STOP buttons can be

readily connected into the circuit when required.— At a terminal on "TB”, a loop in the CT secondary circuit wire permits insertion of a hook on ammeter for measuring

line current.— Device furnished by others — mounted remote.— Terminal board point.

1 1




FVNR INDUCTIONCR194 400-ampere Vacuum Stationary (Two-high)

OL(D/vlZ)

ci C2 AMS AMSSTANOARO OVERLOADS HAVEBEEN SELECTED FOR A MAXIMUMACCELERATING TIME OF.10.SECONDS. FOR SPECIrt.REQUIREMENTS CONTACT FACTORY.

I P(2) Jil

> < (31/Y MlC3 . C4

i0) i2ti i l ln

C20C6C5 IS) 16) (8) P’LI

AM12 U20«2L3

C0ISW

ii

opo-n~nii

oS>0

febP -GS

*%ffiKJ3XID (X2)3CTI

I febP-© K12K2 2CTI i> K J 1K ] 1CT

26 GND

GND(7)°

SET 6F PICK-UP4 AMPS PRIMARYTO GROUND- 2FU ^ TGND

6RB

ALL CONTROL 6NDSARE CONNECTEDVIA TB TO 6ND BUS

(HI) (H2)

T TSWTSW 1rn “iNORMAL TESTCPITPICPI NORMAL TEST 8) :*“| PM (22) (22)M(21)(28) 'H(IS) (28) ^xnoSt fSTow] ' T 17H21H22H20H15 H19

GND

TPI mPURCHASER’S TEST POWER115V.(16)(2)1 (23)() )

0 b-id zrlLI l \jLZ-fLCfCP'-J ie16H23 > <3FU

(2)

MX MXCTM (13)(33) ov) mh(SCAP 27M 20M16> < TA (2)

< 44 REC 17MX O)03)1 (m) o TM A (IPI9)

]—01f>MFLTRF^

13M4 CIPJ )on <6 1P191P1

TDAE 1 SEC.TATA

O—FLTR

M(IP*) , , (IPS)

174

M GIL(1PI8) , r (JP)l) _

174

LINK A START MXASTOP Ar2PB 1

GF OL (A2)(5) (7) m- 12)08)1 o o1PB233D4

M (1P3)(1P2)

<H l-» 32

1 2




FVNR INDUCTIONCR194 400-ampere Vacuum Drawout (Two-high)

OLUW (2)

CJ -r caSTANDARD OVERLOADS NAVEBEEN SELECTED FOR A MAXIMUMACCELERATING TIME OF _10_ AMS AMS

m_| |K)|KH| p3 J

> < (3)/-y- (4)C3 , C4

I0)I12)| ill1)

C20C5 C6

(6) (B) 17)LI

L2 AM

mQiZ)L3 C0

ISM 1ST M 3ST

t

i

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ofxCDii

oKxrn ^3K13 WJ)i3CT

*IN0.MOTOR,%l K12 2CTt

i

cNofT I-iKI KII 1CT26 6ND

6ND6F °(6)(71°

SET 6F PICK-UP4 AMPS PRIMARYTO GROUND- 2FU

^ fGND

GRB

ALL CONTROL GNDSARE CONNECTEDVIA TB TO 6ND BUS(HI) (H2)

TTSW TSN“1 r nCPI NORMAL TESTITPINORMAL TEST CPIUS)M(20) 3) : 120) 122) (22)M(21) *m| pq IffinxSt fuSTOn' fiHJ5 H19 H20 H22 H21 17

GND

TPII (2)U)

L I P*jtaSHflTTJ M(23) (16) PURCHASER’S TEST POMER115V. (5)1*33FU bgsggrrdH23 16 10 > <

(2)

MX MXCTM(34) (44)(33) (43)CAP (& 27M 28MlTA

(2)REC o

MX CPS 17(1)(14XD(13)i (2)TM4 4M J 3M UPi ) Jt«T~O-TNFLTRM

(IP) 9)(4)

1P1 1P19TDAE 1 SEC.

TA TA

O—FLTR

MJIP4) - , UPS) _

MUPJ0) , ,UPll)^yb r,

4 17PB

GIL

4 17PB

A LINK STARTOLGF MXA

2PB 1(10) 1 (5) (7) firO(A2)(7) m- t?)o o33D 24 JPB

MUP2) UPS)

<H h>2 3

13




FVNR INDUCTIONCR194 400-ampere Vacuum Stationary (One-high)

STANDARD OVERLOADS HAVEBEEN SELECTED FOR A MAXIMUMACCELERATING TIME OF _J.0_SECONDS. FOR SPECIALREQUIREMENTS CONTACT FACTORY.

OLI1W (2)

Cl Y C2 AMS AMSF I I P(2). . 1«)P

) < (3)/y (4)

YDTC3I0) :i2ii ITJ 11

SSLyJ&L C20C5 CG

SMI(61 (6) (71LI

L2 AML3

C0isw M (XI^ (X2)GS<r IFU—oôQ K3 (EbK]3Xl )"^ ^3(X2)

i3CT1I

oô-Oii

o^ cKO}

© *1ND.MOTORK2 K12

2CTII

Om I

K11CT

26 GND

6ND6FP^(71°SET GF PICK-UP4 AMPS PRIMARYTO GROUND- 2FU eTGND

GRB

ALL CONTROL GNDSARE CONNECTEDVIA TB TO GND BUS(HJ1 (H2)

TTSW TSWrCPI TPI CPINORMAL TEST• ru M >3) ; NORMAL TEST(13)M (20) (22) (22)(20) M(21) F (*Mffi) 0<2)| JoGHxCj * TIHIS Hid H20 H22 H21 17 DGNDTPI

CD

tx-lLCgr_ j M(23) (16) PURCHASER'S TEST POWER115V. (5)1*S L I r^Ttsssirrd

3FU H23 16 18 > <(2)

MX MXCTM03) 04) my, (63)CAP 1» 27M 20M 1P19

TA(2)

REC oMX J 70)(13)1 1(1«)

7 J 3M , dpi) A^ «r-0-r

(IP19)(4)O

1P1 1P19TDAE 1 SEC.

TA TAO-FLTR

P6 t4) (,«) H c,ps) P6I5)

<Hh><«7 8 17RUN

P6 (J0) (JPIOIAIPIJ) GILPG(ll)» FF27 6 17OFF

A LINK A STARTGF OL A MX

3^0*2PB 1(5) (7)(10) 1 M 33

(0) (A2)(1) Ill1PB7 33D 2

PSO) C1P2) |M,(1P3)<Hh>

P6(3)

»3

1 4




FVNR INDUCTIONCR7160 400- and 700-ampere Air-break (One-high)

STANDARD OVERLOADS HAVEMEN SELECTED FOR A MAXIMUMACCELERATIN6 TIME OF -10-SECONDS. FOR SPECIALREQUIREMENTS CONTACT FACTORY.

OL1IWI?)

Cl "T C2 AMSAMS

> < 14)(3) /-y- I

C3 . C*4 10) 112)

C20C5 C6 15) 161 (6) (7)LI

AML2mQmL3

C0

tkf -1ST 1FU>HQ

M 3ST ss1X2) K13 3CTI

I W->MHD K12K2 2CT1I »)HQ KJ Kll 1CT

26 6ND

6ND6F °16)(7)°

SET 6F PICK-UP4 AMPS PRIMARYTO GROUND

“ 2FU ^GND

GRB

ALL CONTROL 6NDSARE CONNECTEDVIA TB TO GND BUS

(HI)“V-A-A-A-A-A-A»\/

(H2)

T TSWTSW r ~irCPICPI NORMAL TEST! p$(20) TPI NORMAL TEST

4122) p>_LP6I17)P6C19)n (20) (22) (22)—1422 * ' 21M 3) (21)( IS) (19) 4YYV\* */-YVY>.Ixi) (X2)| |(X3) (X4)»> <4 J 7N 1715 19 20

GNDVP6U5)

P6(I9) TPI PC(1$)(I9ft)| /»16) I (5)1(2)1 PURCHASER'S TEST POWER

115V. >»>« 18lei) 1610AISSSSTIT-- 3FU > <(2)

MX MXCTM (33)1 (34) (44) (43)(SCAP 227M 28M > <(2)

> < OMX

() )(13) 04) o JL IB)1713M P6 (1)(4) (A)

O17

M R1LP6(7) PG(8)

«H h» ft- 1787

M GILP6(S) P6C6)

ft- 1767

A LINK A START—£ 1—til“32 ^ 3

A MX

^_(A1^^(A2)-OLGF

IS) (7)00) 0 0 —1PB 47 • 33D 2PBM

P6(3) P6(4)

<H K>3 «1

1 5




FVNR INDUCTIONCR7160 400-ampere Air-break (Two-high)

OL(l)/-y 121

Cl "vc2STANDARD OVERLOADS HAVEBEEN SELECTED FOR A MAXIMUMACCELERATING TIME OF.10.SECONDS. FOR SPECIALREQUIREMENTS CONTACT FACTORY.

AMS AMS

rH I P(2 ) . IHI

> {t3)obtl>)C3 C4:

(10) [ )2) t ill ] 1Id)

C20C5 C6

(SI 16) (8)LI

L2 AMm£)(2)

L3C0

I)*, (XUH .8bP-

1ST 1FU M 3ST 6S

IM» &(XI) 1X2)K3 K13 i3CTII febP - *IND.

MOTOR)Ha 1 %K2 K12 2CTII fefcP i>Hn IF—^K 1 Kll 1CT

2STU^y 28 6ND

GND GTCt7 J°

SET GF PICK-UP4 AMPS PRIMARYTO GROUND

“ 2FU

^GND

GRB

ALL CONTROL GNDSARE CONNECTEDVIA TB TO GND BUS

(HI) (H?)

TTSW TSWr - r - nCPI TPI CPINORMAL TEST NORMAL TEST

3) !M M A15 * ' 19

(20) (22 ) 8) :(19) P F (22 )M 21(21) fESBt f(X3?(Xd] -t— i20 22 17N 17:: GND

:> <TPI

I N-p P*T-cc«nr— M(16A) (16) (5)PURCHASER’S TEST POWER115V.*( l ) . 18A 16 180 TMIflBHr3FU > <

(2)

MX MXCTM (33)1 o*) m) (43)CAP (S 227M 28MlTA(2)

' 44 REC o17MX

(1)(13) (I d )TM7 13M (1) (A) (B) (2)

p*-«—O—' ~tsri ono

TDAE 1 SEC.TA TA

O—FLTR

M RIL(7) (6) (1^(2)7*87 17

M GIL(S^S) (^(2)+7 6 17

A LINK ^ START

'°3 2 > 3^

OL 6F A MXg (H11Q(A2)STOP ,L r i . n l(8) (10)1 (5)(7) ( i ) (2) (2)O O1PB 47 3333D 2PB

M(3)| W)

3 4

1 6




FVNR INDUCTIONCR7160 400-ampere Air-break (Three-high)

STANDARD OVERLOADS HAVEBEEN SELECTED FOR A MAXIMUMACCELERATING TIME OF «10.SECONDS. FOR SPECIALREQUIREMENTS CONTACT FACTORY.

OL(I)~ 12)

Cl T C2

DjfAMS AMS

tn| |(2)j teij | I3>C3)/~y «)

os C4\ J0) J 2) i ,111)

£lsyJS± C20C5 CSIS) • 116) (6)LI (7)

L2 AML3 C0

1ST JFUO

M 3ST GS

K3 I F y^xi ) C3CT

1X2)lI

I txn ix2 )1\ h^ %K2 K12 2CTI

I tX2r4»-o i-0- -' llK1 K ) 1 1CT28 GND

GNDGFIS)n r


- 2FU

j ("6ND

GRB

ALL CONTROL GNDSARE CONNECTEDVIA TB TO GND BUS

(HI) (H2)

TTSW TSWrCPI TPI NORMAL TEST INORMAL TEST CPIJiMA

15 * r ) 93) : 120)1121 OOI (22) H „(21) B)J(22)* Û)«2)|20 22 17N 175

GND j:> < \TPII (2)1 M()6A) (16) PURCHASER’S TEST POWER115V. I F“*j(5)¥(J) bsgggf —J ISA 16 1033FU

) <(2)

MX MXCTM(33)1 (30 (M)l (13)CAP eft 27M 26M 2TA

(2)41 REC oMX 17(1)CIN)(13) 1 TM7 13M (1) (A) JL7 ~~« Q (B) (2)COo

2TDAE 1 SEC.

TA TAO—FLTR

M ngs.(7) (B)

7 e 17

M

7 6 17

A LINK A START-fc J£-SA£O^&.

3? ' 3 1PB

GF OLA MX

rÔIIStie) (5) (7)ms ,(A2)(1) (2)7 33D 2PB

M(3) 1 on

3 1

17




RVNR PRIMARY REACTOR INDUCTIONCR194 400-ampere Vacuum Stationary (One-high)

STANDARD OVERLOADS HAVEBEEN SELECTED FOR A MAXIMUMACCELERATING TIME OF _10_SECONDS. FOR SPECIALREQUIREMENTS CONTACT FACTORY.

OLCl )OCJ22

AMS I AMSnil U224JHJ U2L.CJ C2

:C3) /yC1)

C3 . C4 191 j |C19)J|I2I| jlll)C20

C 6C5 isi lei ceii F1LIAML2 IJ2Q01

C0L3ISM R

©2CT

- VA

M

©GS

(XI) ,(XZ)K23K3 K13l

-oj o-Q11

o oJTH

©© K22K2 K12II ,VH tX24- .6bP -

I I©© ATK21K 1 K11 1CTTAPS 50-65-00XSET AT 657. 26 GND

SR GNDGF

I (ZA)

e(S)171°


K2J,C*fXYXÎ (2B)

K22

I (X)32FU 'GND(OC

GRBK23

ALL CONTROL 6NDSARE CONNECTEDVIA TB TO GND BUS

(HI ) (HZ)

T J£W _NORMAL TEST-4 1 pf

TSH I—rCPICPI NORMAL TEST

-4^ PfTPI

(29) CZ2) (ZZ)M(21)M(IS) (20)17H20 H21H22H15 H19

GND:

TPI I 8ILL1(23)M(16) PURCHASER’S TEST POMERJ J5V .

(2)Cl ) >4B” leH23 16 A

MX MX(Z) CTM (33) C3H) C »m) l «3)

1$CAP IP1920M27M16TA; r REC 171TR JTR MX (1)(13) 1 ()•»)(13) (m) (33) (30 TM7B A UPI9)7A !3M7 dPl)

H>INST.INST.IPIS1P 1

TDAE 1 SEC.TATAO—FLTR

© MXo(Al (AZ)17

RXRX1CTM (33)| M3)C3X) W)

ISCAP 27R 28R 2R16TA-M1)

REC 17RX1TR 03) 1 do)(67) (661 TM13R0 9B (IP1) A (IPI9)

I ESP"tgri 00

1RTDAE 1 SEC.

R TACIP2) (IP3) TA<HF> O—0 SB FLTR

RXO(Al CA2)

37SB

«») UPH) 1 UPS)

y®—(H H»-P6(3)

170 RUN

T# GILP6CII)») »-P6 (10) IPII)

T* 17OFF

STARTUioô l

2PB ‘

1TRAOLTST GF3^0(AZ)M2^(2) (10) (5) (7)mATI 33C TDAE1PB33D7

0.1-30 SEC.SET J0 SEC.P6(?> (IPZ) ,M,(IP3) FGC3)

-f .—«6-1 f-»—»5-

18




RVAT INDUCTIONCR194 400-ampere Vacuum Stationary (One-high)

RVAT INDUCTION

^00A CR194- Stationary Vacuum Cl HiahDtn~ (2)

Cl ^ C2STANDARD OVERLOADS HAVEBEEN SELECTED FOR A MAXIMUMACCELERATING TIME OP „10SECONDS. FOR SPECIALREQUIREMENTS CONTACT FACTORY.

AMS AMSUL| C21 IK) 13)> <NOTE - DO NOT ENERGIZE AUTOTRANSFORMER

WITHOUT MOTOR LOAD CONNECTED. :C3 C4

]0) i?)i iinifLI «2^11 C20

C5 C6L2 151 16) (3)

AMTAPS 50-65-90KSET AT 65X13 iilQB)

C0

rOTTfc—©—i1(2C)

—©—n

1(20]

is/XYXlfc—©—|(2fl)

ISH

Cfe—^-©(FC) (Xl^ (X2)GS<r 1FU

0 1 ° OK31J

13K23 (XI ) (X2) l3CT

© ©K12 K22 2CTCX2)

© © 1

T7&K ] ] K21 JCTGND

26GF °(6) GND

C7)°SET GF PICK-UP4 AMPS PRIMARYTO GROUND=12FU

(HI ) (M2)%

_A_

A_

AWA_A_

A_A_T

TTSM TSW«TGNDCPI TPI CPINORMAL TEST

«wi E22_L NORMAL TESTwC7JI K9) :M(15) (28) (203 (22) (22)H(21)

^xmj(2)t JuaMiwl 1 T GRBHIS HJ9 H20 H22 H21 17

B GNDALL CONTROL

GNDS ARE CONNECTEDVIA TB TO GND BUS

TPIJ (2)1 tilij. J (5)1 1(6)1hsasnidMhi )

P3fU

(23

(23) (16) PURCHASER'S TEST POWER115V.TT* *~1BH23 > <

t7

T17

(Continued on next page)

19




177

AMX MXA CTM (33)1 (34) (44)! (43)CAP 7$ JP1927M 2BMKTA

(2)

' 44 REC ) 7JTR MX1TR (1)(34) (13) (14)(13) (14) (33)O TMM50 M51 13M UP))> «T O-tMFLTRM

OP19)(4)INST. INST. »-*o1P19JP1

TDAE 1 SEC.TA TAo-FLTR

MXo(PI (ft?)

17M51

RX RX1CTM (33) 1 (34) (44) (43)

7&CAP 27R 20R 2RTA

(2)

' 44 REC o2TR (3P12) ,N, (3P14) , 17M RX1TRP6 (4) (,M) PG(5)(IPS) (1)(14)(67) [66) O TM«OvOTCJ> R13R6 R24 d p i ) ()P)9)(4) <«O

2R1RR0P6) (IPS) TDAE 1 SEC.

R25 TA TA

O—FLTR

RX

O(61 (62)

17R51

2TR 2TR(14) (33) (34)03)

N29(3)\ N27 N28INST. INST.3REC

R1TR1TR I1PI2) OPI4) MOV,(1) (2)«-44-»(56) (43) (44) 0(55)ort5TOX 17N25N23e N24INST.

N(4)' (3PI ) (3PI9)o N29N26FLTR

ms (2)

2TRO(61 (62)

17TDADN250.1-30 SEC.SET 0.5SEC.

RIL(1^(2)

17e

M GIL APG (6) (1P9) t \ (1P9) P®195«4f-»—» 1767

A LINK A START A 1TROLTST GF _ .STOP f«. .CL2A . ntt)2PB *

(62)41(2) (5) (10) (7) (?)( i ) U*o oTDAE 1733D 2 1PB33C70.1-30 SEC.SET 10 SEC.MP6 (2) (JP2)-« «- PG(3)0P3)-» »3

MO




RVAT INDUCTIONCR194 800-ampere Vacuum Stationary (One-high)

OLCl >/-v- (2)

Cl X C2

onC3 , cT

(6)

C5 ^ C6

AMS I AMSU) j |(2)j l»)| j (3)

STANDARD OVERLOADS HAVEBEEN SELECTED FOR A MAXIMUMACCELERATING TIME OF -48SECONDS. FOR SPECIALREQUIREMENTS CONTACT FACTORY.

> <NOTE - DO NOT ENERGIZE AUTOTRANSFORMERWITHOUT MOTOR LOAD CONNECTED.

10)£) 2I| |UIJ=HfLI C20LZ

TAPS 50-65-00ZSET AT 65XL3 ii)QmC0AT N

ireOCYXlfcr-©—i

^ c?c »

—©—"|1281

?/XpCV-©—

^ tao

ISW M R

© GS m > vm-oYo-in ©

J

-ofo-Os-l ©I

- HOHI ©

19K13 K23 (XII i ilx?1. i3CTiii,W©KJ2 K22

2CT

© I

7T*K ] 1 K2I TBl (GND)1CT

26 GND11 (GND)

26N6TC GND[71®

SET 6F PICK-UP1 AMPS PRIMARYTO GROUND3 D2FU

(HI) CK?)

TTSWI *—[NORMAL TEST1 Tf» »l IILL

TSWr Y6NDCPI NORMAL TESTI4cm K9) I

TPI CPIM(IS) (20) (20) (22) (22)H(21)

Israel:H15 HJ9 H20 H22 GRBH2J 17

GND:ALL CONTROL

CNDS ARE CONNECTEDVIA TB TO GND BUS

: TPI :u)

03FU

(2)

«21 |»3.AbfflMrrJ H(23) (16) tSBPURCHASER'S TEST POWER

1I5V.7i 7?H23

t7 17

Ir


Ml




177 AA MXMXCTM (33) Q») (44 ) (43)

CAP JP1928M27MTA (2)

' M REC ) 7MX1TR JTR ( l )03) (14)(34)03) 04) (33) TM MM50 13MM517 UP)9)UPJ )(4)

INST. INST. <4 1P191P1

TDAE 1 SEC.TA TA

O—FLTR

TR1

ETTRP17TDAD

0.J -30SEC.SET 1 SEC.

J 3M

RX RX1CTM (43)(33) (34) (44)CAP 2R27R 26RlTA (2)

RECM N J 7RX(3PI4)2TR (3P12)

TC>• R24 TCi1TR0P5)0P4) o).03)1 04)«Hh» (67) TM RR51 13R8 0P19)(IP) )(4) ro^r~^NFTTRN<4o

JRR

OPS) OPS) TDAE 1 SEC.<H h» R25 TA TA

O-FLTR

RX17R51

2TR2TR(34)03) (14 ) (33)

N26 N29(3) \ N27INST.3REC INST.

R1TR (1P14)0P12)1TR HOY( i ) (2)

Toi N23(44) 0 17N25N24e

INST. N(4) (3PI9)(3P1) o N29N26FLTR

(2)0)

2TR

MFLTRM TDAD 17N250.1-30 SEC.SET 0.5SEC.

RIL0^2)

17eeiLMOP6) OPS) 0^(2)

<H/H> 17s7

A t-INK A START12*0^ A 1TRMXOL1TST 2TST

JJ2lAkuniA7 r I 33B V \ 33C

6F STOPlo . (V f C r(23) 1 (24) (?)(7)00) (7)

(2) (5) (0) *J 17TDAE2 1PB 33233D 2PB 0.1-30 SEC.SET 10 SEC.TR1 M

TC1 32(S3) 0P2) OP3)

<Hh»3* 2 3CTM MXAMX (31) U32) (02)(01(53) (54)17334A34

112




RVAT INDUCTIONCR7160 400- & 700-ampere Air-break (One-high)

t) )~ (2)

ci -r cFSTANDARD OVERLORDS HAVEBEEN SELECTED FOR A MAXIMUMACCELERATIN6 TIME OP.101SECONDS. POR SPECIALREQUIREMENTS CONTACT FACTORY.

AMS AMS(1) (2) 1*1) < :NOTE - DO NOT ENERGIZE AUTOTRANSFORMER

WITHOUT MOTOR LOAD CONNECTED. (3)~»)HP C4C310) 112) |nn

(S),-y (63C5 C20

C6IS) 169 (6) i (7)U

AMTAPS 50-65-80/1TAP SET 657.L2

0)Q(2)

C0ATL3 2ST *ST S 5ST<<H F -» 6ST N 7ST«HM»|t2C)

1ST K3 R 3ST 6S (XIL. (tt)

99» IS -jK13 (XI)

<,B/XYX\n112»)£ 3CT<<HM»lK2 I m* «?u%Lil 0j-2»-n IM» K12

S/XTXL,|i»)a 2CT<<HM»K1

*-n 1 M» IIK1 J

1CT26 GND

6P(6) 6ND(7)0

SET 6F PICK-UP4 AMPS PRIMARYTO GROUND0 =i2FU

(HI ) (H2)

TTSW TSWCPI P6U9) NORMAL TEST

wW 3l IQ) : CPI«5(2«) TPI NORMAL TESTIILL

P6U7)H(IS) (19) (22) (22)—M22 y r 21(20) (21)« ÛHX2)T fooTliM]

1 _lt_ »15 19 20 17N 17 yGNDyp6tis) 6ND

GRB:P6U0) TPI P6CI6)

(18A) j yf (16) IPURCHASER'S TEST POWER115V. pr-ccosgir—Itsafflszj

» >CD 19A 16 18 ALL CONTROLGNPS ARE CONNECTEDVIA TB TO 6ND BUS(2)

t7 17


113




7 17

Asx sx1CTM

(33)1 [30 (44) (43)CAP 27R 20R 2RlTA

(3)

' 44R R£CSX 17P6(13) P$(14) m(13) cm)TM14 13R S(A) (B)(4) o »o

1R 2R

TDAE 1 SEC.TA TA

O—FLTR

SX

O(A1 (A2)

14 17

RX(AlO(A?)

R30 17

RX RXCTM(33). (34) (44) (43)

CAP 7$ 27M 20M 31TA

(2)REC o

1TR 1TR RXN 171TR 2TR U)03) (14) (33) (34) U. nftfl (frS)rT .-rr(66) (S)| /1162Kt* Rzi TCT^RM KI (13) 04)167) TM7A JL (B) TOt2)137 R30 13M PBd) (MINST INST (4)

O30

> < TDAE 1 SEC.TA TA

C^-FLTR

NX NX2CTM(33)1 (34) (44) (43)

CAP if )"

27S 20S 2STA

(2)R RECS 17NXP6(9) POO0)1TR O)

> 3 I 1^” N28( I I ) (13)! (14)(Sfi) O TMN25 13S N(A) (B)(4) oIS 2S

TDAE 1 SEC.TA TAo—FLTR

NXO(A) (A2)

N25 17

2TRO(A) (A2)

N25 17TDAD0.1-30 SEC.SET 0.5 SEC.

R RILP6(7)> < P6(6)

07 17S

(7) (B)7 0

RS GILPGC5) P6(6)

6 17

A LINK A STARTTST A 1TR6F OL STOP(2) (5) (10) (7)—U2M-7 y * 33C ms (A2)(1) (2) (2)O O1PB 433D TDAE 172PB

0.1-30 SEC.SET 10 SEC.R

P6(3) P6(4)

3 4

S(3) 1 (4)

114




FVNR BRUSHLESS SYNCHRONOUSCR194 400-ampere Vacuum Stationary (One-high)

u£PHSTANDARD OVERLOADS HAVEBEEN SELECTED FOR A MAXIMUMACCELERATING TIME OF _10_SECONDS. FOR SPECIALREQUIREMENTS CONTACT FACTORY.

OL (13S) tl3T)0 O12)

CJ -T C2 AMSl AMS(I )| |C2) j M ) j |131

DOuSPM

> < (12S) (12T)o omsyjll

ClC3 D2 I9) ll 2li ill ) )

Qlr^JSl C20C5C5 IS) 161 (6)| (7)L )

12 AM

O22( I )

C0L3ISW M

©6S

-jK13 CXI ) , iX£)K3 3CTtI

ii

oS>Q

o *%K2 K12 2CTII

© jK 1 K )1 JCT

26 6ND26N 6ND6F °(6)(7)°

SET GF PICK-UP4 AMPS PRIMARYTO GROUND- 2FU

a'GND

6R6

ALL CONTROL GNDSARE CONNECTEDVIA TB TO GNO BUS(HI ) 1«)

T

NORMAL TEST

TSMI 1INORMAL TESTII »(7)1 IB) ! I

rCPI TPI CPI

*“| PM 129) (22) (22)M(IS)M(29) (21) ^fcmx2)T |(X3?Owt t 17HIS H19 K20 H22 H2)

6ND

TPI

[T<S0g5’_J(221 M(16)( I )

ET(23) PURCHASER’S TEST POWER

115V. >*H23 16 ; (

(2)

MXMXCTM (33) ; (3») CNN ) ; (13)(SCAP 1P1927M 26M> < lTA

(DRECMX

113) 1 0«)-ft- TM 1713M „ dPi ) JL«r O-rNFURF7 I P19)•tgri DO

]PI91P1

TDAE 1 SEC.TA TA

O—IIFLTRo

LSPM FCffWTTj-pBgj 176Ae

M PCIS)PGM ) cp,) (IPS)-» » 177 6

FO (6) (IP*) ,M. CP9)-«— GILP6I9)

0^(2)

177

CTDP A LINK /\ STARTii£T0£i£c

2PB J

uSPM MXAGF OL

kl«d.09)1 IS) I?) >*T3333D 1PB7

*(2J ( IP2) ,M . (1P3) P6(3)

<H h> »5tt

7 17


115




i171 A

FLTRC l ) cz\

VT15) 0»)o o

177O)

F3 DC*Cl)7FU (3)

7REC10A.(2) HOYO) (2)0F4 17

Cl)'DC-

FC FC FC FCI5)i C6) (7) (6)(1) (2) (3)i on

F2F5 F6DC * FI

7RS 0RS0) (2) Cl) (2)

F2F7 50 OHMS100W.50 OHMS

J 00W.CM

(XI ) OCM8 (9)

DCCT B(7)(X2) OCM7

tEXC.FLD

^_rrr v~v _^FI F2

uSPMNOTE * READ GEH-5201.SECTION 6.BEFORE ENERGIZINGCONTROLLER.

QCNO Q(N-)DISPLAYLINE AMPSPOWER FACTORFIELD AMPSFIELD VOLTS

(V2)(VI)O o 177

(NXl) (MX2) ( IE) (•IE) (MX) (MX) )

O O O Oo oCMl CM2

X* MX1NXCMGNO

6[5) »>6 pen#) dPuAiPin ttcin

MX MX1(3) ono O 17.7

116




FVNR BRUSHLESS SYNCHRONOUSCR194 800-ampere Vacuum Stationary (One-high)

USPMOL (I3S) (13T )

• o oliw.l?)

C) ' r C2 C7 AMS AMSSTANDARD OVERLOADS HAVEBEEN SELECTED FOR A MAXIMUMACCELERATING TIME OF _10_SECONDS. FOR SPECIALREQUIREMENTS CONTACT FACTORY.

: 131Cg) JillmuSPM0 (12$) ClgT)

0 0isirjjvC3 C4 ce:

lei tgii iiin

: C20C5 C6 IS) 16) (6)| 171L )

AML2C0L3

ISW M

©(XI^ 1X2)6S

& 0iK13 txi ) 1X2)K3 3CTII W-oN>Q

II

oSxn>© 0iK2 KJ 2 2CT

tkf -© I

0iK ) 1K )JCT

26 6ND26N 6NDGF °(6)(71®


- 2FVflCGND

6RB

ALL CONTROL GNDSARE CONNECTEDVIA TB TO GND BUS(HI ) (H2)

T TSWTSW

TPI CPICPI NORMAL TEST4^ f ®4-

NORMAL TESTyP»l KILL (20) (22) H 3,-m A

15 * I 19(22) (21)(19) ffiiuSiT fixanxxfr1 X! ! 20 J 7N J 722

1 GNDTPII (2)1 M PURCHASER’S TEST POWER

115V. . I f* .(S)(16)(I0A) -0 0bssszJ(1) 16 1818A03FU 0(2)

MX MXCTM (33) 1 ox) mn 1X3)CAP 1P1927M 28M

TA> < (2)44 REC 17MX(13) (IX)0 TM13M Mo7 (IPI) (IP19)‘Tgri i5> r-u-r >

Imrad IP19IPI

TDAE 1 SEC.TA TAo—FLTR

TR1O(Al EA2)

TDAD J 713M0.1-30SEC.SET 1 SEC.

M RIL( IPX ) UPS) 1^(2,4« 177 8 RUNUSPM FCIF3RTJ IFAR2r)

8Ae

M GIL(IPS)OPS)

“33®177 OFF

uSPMGF OL MXITRP2rj 123) 1 12X)(S) (7)a/m.Y I 33C

awpiji

3433D 33TR1 Mres) [66)FiW CIP3)(IP2)

T<*CTMTAMX '

(S3) (5X) t7

334 34A17


117




717A A

FLTR(i) (23

VT(5) (43

Oo \_A

_A_A

_A

_A

_A

_A

_A

_T ] 77

03

F3 DC*(137FU 03

7REC10A.(23 MOV.(D (2)

£5F4 17

(4)'DC-

FC FC FC FC[23 03 (53 [S3 (73 (S3(13 (4)

F2F5 F6FIDC *7RS 8RS

(l) (23 (13 U23{ F2F7 50 OHMS100W.50 OHMS

100W.CM

(xn OCM0 (S3 nDCCT

(73(X2) oCM7

fEXC.FLD

0. _rrrwv _0FI F2

uSPMNOTE: READ GEH-5201.SECTION 6.BEFORE ENERGIZINGCONTROLLER.

Q[N* 3 Q (N-3DISPLAYLINE AMPSPOWER FACTORFIELD AMPSFIELD VOLTS

(V23(VI 3 oo 177

(MX!)(NX23 (ilE 3 C-IEJ (MX 3(NX 13O OO o oo

CMl CM2

NXMCM (IPI03 (IPI13SND

(6366t5J MX1MX

(33 (43O O 177

118




FVNR BRUSHLESS SYNCHRONOUSCR7160 400- and 700-ampere Air-break (One-high)

USPMOL (OSHI3T)

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FVNR BRUSH-TYPE SYNCHRONOUSCR194 800-ampere Vacuum Stationary (One-high)

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126




FVNR BRUSH TYPE SYNCHRONOUSCR7160 400-ampere Air-break (One-high)

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128



GE Medium VoltageMotor Control Guideform Specifications

C0NTR0LLERS-CR194 VACUUM STATIONARY & DRAWOUT CONTACTORS,2400 -7200 VOLTS

GENERALThese specifications cover NEMA Class E2 high-voltage control for

Controller #1:

Hertz as follows:volts, phase,

(Squirrel-cage induction)(Wound-rotor induction)(Brush-type synchronous)(Brushless synchronous)

controller for(Non reversing)(Reversing)

(Full voltage)(Reduced voltage)

motor rated at horsepower.Controller #2, etc. (as shown above)

ALL CONTROLLERSController(s) shall be fused type employing current-limiting sand power fuses that give the controller aninterrupting rating of:

200 mVA, 3 phase symmetrical at 2400 Volts, 50/60 Hz350 mVA, 3 phase symmetrical at 4200 Volts, 50/60 Hz400 mVA, 3 phase symmetrical at 4800 Volts, 50/60 Hz600 mVA, 3 phase symmetrical at 7200 Volts, 50/60 Hz

CONTACTORSStarter(s) shall employ magnetically held vacuum contactor(s) rated at:

for welded enclosure:400 amperes at 7200 volts maximum, interrupting rating of 75 mVA, 3 phase symm.800 amperes at 5000 volts maximum, interrupting rating of 75 mVA, 3 phase symm.

for bolted enclosure:400 amperes at 5000 volts maximum, interrupting rating of 50 mVA, 3 phase symm. (2-high only)

Contactor(s) shall be stationary (drawout for 400 amp contactor only) and the coil shall be removable without removingthe contactor from the enclosure. The vacuum interrupter wear checks shall not require removal of thecontactor.Controller(s) shall be in a:

for welded enclosure:One-high line-up of NEMA.amp horizontal AC bus

One-high individual NEMAterminating incoming cable

for bolted enclosure:Two-high line-up of NEMA _horizontal AC power bus

The power bus shall be braced for 80 kA RMS asymmetrical or 50 kA RMS symmetrical.

For safety to personnel, enclosure(s) shall be compartmented into low-voltage control compartment with separate door,high-voltage compartment with separate interlocked door, AC bus compartment with protective barriers and cableentrance compartment.

jenclosure(s) equipped with 3-ph (1000) (2000)

enclosure(s) equipped with provisions for

enclosure(s) equipped with (1000) (2000) amp

J1




The controller shall be isolated by a quick-make quick-break switch operated by an externally mounted operating handle.The isolating device shall disconnect the secondary of the control power transformer before opening the main circuitcontacts.Mechanical interlocks shall be provided to prevent:

1. Closing the isolation switch with the high-voltage door open.2. Operation of the isolation switch while under load.3. Opening of the high-voltage door when isolation switch is on.4. Operation of the contactor when the isolation switch is in an intermediate position.NOTE:For overload protection, one three-pole ambient-compensated thermal-overload relay, manually reset, shall beincluded.

Controllers rated 400 and 800 amperes shall be rated 60 kV Basic Impulse Level (BIL).

OPTIONS:Each controller shall contain protection against single-phasing due to a blown fuse and shall have blown fuse indication.(Solid-state relay protection)(Latched contactors)

Control for Wound-rotor Induction Motors

Secondary control shall be fully magnetic. It shall provide automatic acceleration through starting steps withuniform torque peaks using a NEMA Class resistor.The control shall provide for continuous speed regulation with points of speed reduction with a maximumreduction of % from full-load speed at % full load torque.

Control for Synchronous Motors

DC field control for synchronous motors shall consist of one General Electric CR192 starting and protection moduleequipped with digital displays for power factor, field current and line current, one field starting and discharge resistorand one electronic field contactor. Operation must be fully automatic.Static field supplies shall be:

(tapped transformer static field contactor [SFC])(adjustable silicon controlled rectified variable field contactor [SCR type VFC])(adjustable VFC with power factor regulation)(adjustable VFC with field current regulation)

Additional Functions

Control power at 120 volts shall be provided from a control power transformer in each controller. The transformer shallbe protected by current-limiting fuses.Controller(s) shall provide instantaneous undervoltage protection when momentary contact push button is used,undervoltage release when maintained contact push button is used.

is to be

j

(mounted on door)(remotely located)

(Push button)(Switch)

Finish

Finish shall be:

(ANSI-61 light gray over rust-resistant phosphate undercoat for indoor use.)(ANSI-61 light gray over one or more rust-resistant phosphate undercoats for outdoor use.)

J2




CONTROLLERS - CR7160 VACUUM OR AIR-BREAK DRAW OUT,2400 -7200 Volts

GENERALThese specifications cover NEMA Class E2 high-voltage control for

phase, Hertz motors as follows:

Controller #1:

volts,

( SqM ge induction)rotor induction)

lltajjp-type synchronous)Brumless synchronous)

(Full voltage)(Reduced voltage)

controller for(Non reversing)(Reversing)

motor rated at horsepower.Controller #2, etc. (as shown above)

ALL CONTROLLERSController(s) shall be fused type employing current-limiting pow

200 mVA, 3-phase symmetrical at 2400 volts, 50/60 Hz350 mVA, 3-phase symmetrical at 4200 volts, 50/60 Hz400 mVA, 3-phase symmetrical at 4800 volts, 50/60 Hjz600 mVA, 3-phase symmetrical at 7200 volts, 50/6GN^yj

Starter(s) shall employ (vacuum) (magnetic air-breinterrupting capacity of 50 mVA, 3-phase, symm^MStarter(s) shall employ magnetic air-break liq^coiuftctor(s) rated 700 amperes, 5000 volts and have an interruptingcapacity of 80 mVA, 3-phase symmetrical.Controller(s) shall be in a:

one-high line-up of NEMAfree-standing one-high individualtwo-high construction with NEN||three-high construction with ME|

that give the controller an interrupting rating of:

line contactor(s) rated 400 amperes, 5000 volts and have an

With 3-phase (1000 amp) (2000 amp) AC power bus.enclosure(s) with provision for terminating incoming cable.

enclosure*, and with 3-phase (1000 amp) (2000 amp) AC power bus._ enclosure*, and with 3-phase (1000 amp) (2000 amp) AC power bus.Ihall be compartmented into low-voltage control compartment with separateseparate interlocked door, AC bus compartment with protective barriers and

eno

jFor safety to personnel, enclosedoor, high-voltage compartacable entrance compartmen

Line contactors shall b

The controller shalshall also open thjpoperation of the r!|the starter, an<M3)

ut type.|ated by externally operated drawout stabs with shutter mechanism. The isolating deviceary of the control power transformer. Interlocks shall be provided to prevent (1) inadvertent

jEBbn mechanism underload, (2) opening the high-voltage compartment door without isolatingclosing the isolation switch with door open.d protection, one three-pole ambient-compensated thermal overload relay, hand-reset, shall beNOTE: Fon

included-#*

J3




OPTIONS(Solid-state relay protection)(Anti-single-phase trip bar)(Mechanical latching)

Control for Wound-rotor Induction Motors

Secondary control shall be fully magnetic. It shall provide automatic acceleration through starting steps withuniform torque peaks using a NEMA Class resistor.The control shall provide for continuous speed regulation with point of speed reduction with a maximumreduction of percent from full-load speed at % full-load torque.Control for Synchronous Motors

DC field control for synchronous motors shall consist of one General Electric CR192 starting and protection moduleequipped with digital displays for power factor, field current and line current, one field starting and discharge resistorand one magnetic field contactor. Operation must be fully automatic.Static field supplies shall be:

(tapped transformer SFC - Static Field Contactor)

(adjustable SCR type VFC -Variable Field Contactor)

(adjustable SCR type VFC with power-factor regulation)

(adjustable SCR type VFC with field current regulation)

Additional functions

Control power at 120 volts shall be provided from a control-power transformer in each controller. Transformer shallbe protected by current-limiting fuses.Controller(s) shall provide instantaneous undervoltage protection when momentary-contact push button is used,undervoltage release when maintained-contact switch is used.

(mounted on door).(remotely located).

jis to be(Push button)(Switch)

Finish

Finish shall be:

(ANSI-61 light gray over rust-resistant phosphate undercoat for indoor use.)(ANSI-61 light gray over one or more rust-resistant phosphate undercoats for outdoor use.)

J4

'._.v



GE Medium VoltageMotor Control Basic Starter Features

STARTERS - CR194 VACUUM

Reduced-Voltage Non-Reversing (RVNR) (Primary Reactor)Same as forfull-voltage non-reversing with addition offollowing:

1-Three-pole vacuum contactor used asa RUN contactor

ALL STARTERSEnclosure NEMA Type 1general purpose,

ventilatedConnections

Incoming Line . . Entrance top or bottom. Cablesseparated by barrier from bothlow-and high-voltage compartments.

Motor Cable . . . . Entrance top or bottom. Cablesseparated by barrier from both low-and high-voltage compartments.

Auxiliaryenclosure(1-high) . 1-Reduced-voltage starting reactor with

taps for 50-, 65- and 80-percent linevoltage

Low voltagecompartment . .1-Definite time transfer relaySQUIRREL-CAGE-MOTOR STARTERS

Full-Voltage Non-Reversing (FVNR)High-voltagecompartment . .1-Set of bolt-in current-limiting fuses

and supports1-Externally operated disconnect switch1-Three-pole vacuum contactor1-Set of mechanical interlocks to

prevent opening the disconnect whenthe contactor is on, to prevent opening the door when the disconnect ison, to prevent closing the contactorwhen the disconnect is in an interme-diate position, and to prevent closingof the disconnect when the high-voltage door is open

1-Fused primary control powertransformer (CPT)

3-Current transformers3-Terminals for motor cable connections

Reduced-Voltage Non-Reversing (RVNR)(Autotransformer closed transition)Same as forfull-voltage non-reversing with addition of following:

1-Three-pole vacuum contactor used asa RUN contactor

Auxiliaryenclosure(l-high) . 2-Three-pole vacuum contactor -

neutral, and 80-percent line voltageLow-voltagecompartment . .1-Definite time transfer relay

WOUND-ROTOR-MOTOR STARTERSNon-ReversingSame as for squirrel-cage FVNR with addition of following:Secondaryenclosure 1-Set of intermediate accelerating

contactors1-Final accelerating contactor1-Set of definite time accelerating relays

jLow-voltagecompartment . .1-Three-pole, ambient-compensated

thermal overload relay, hand-reset1-NORMALrTEST selector switch1-Control-circuit fuse1-START-STOP push button, oil-tight,

flush-mounted

Resistorenclosure 1-Set of starting-duty resistors, NEMA

Class 135ReversingSame as for non-reversing with addition of folloxoing:High-voltagecompartment . . 1-Three-pole vacuum contactor used

for reversing1-FORWARD-REVERSE-STOP push

button, oil-tight, flush-mounted(replacing START-STOP push button)

On door

Full-Voltage Reversing (FVR)Same as forfull-voltage non-reversing with addition of following:Auxiliaryenclosure On door2-Three-pole vacuum contactors for

reversing1-FORWARD-REVERSE-STOP push


On door

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BRUSH-TYPE SYNCHRONOUS-MOTOR STARTERSFull-Voltage Non-Reversing (FVNR)Same as for squirrel-cage FVNR with addition of following:Low voltagecompartment . .1-Field application and discharge

contactor

On door 1-CR192 JXSPM solid-state synchronizingdevice for precision-angle field appli-cation, load-angle field removal andsquirrel-cage protection with built-indigital power factor and line ammeter

1-Line amps display - digital readout(part of CR192 module)

1-Field amps display - digital readout(part of CR192 module)

1-Field starting and discharge resistorOn top

Reduced-Voltage Non-Reversing (RVNR)Same as forfull-voltage non-reversing with addition of precedingreduced voltage sections contactor

BRUSHLESS, SYNCHRONOUS-MOTOR STARTERSFull-Voltage Non-Reversing (FVNR)Same as for squirrel-cage FVNR with addition of following:Low voltage . . . 1-Brushless-exciter field supply (7 amps

maximum)Compartment . .1-Variable autotransformer for exciter

field supply1-CR192 pSPM solid-state synchronizing

device for precision time-delay fieldapplication, load-angle field removaland squirrel-cage protection withbuilt-in digital power factor and lineammeter

1-Line amps display - digital readout(part of CR192 module)

1-Field amps display - digital readout(part of CR192 module)

Reduced-Voltage Non-Reversing (RVNR)Same as forfull-voltage non-reversing with addition of precedingreduced voltage sections

NOTE: Drawout contactor available only forFVNR applications.

On doorj

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STARTERS - CR7160 AIR-BREAK Full-Voltage Reversing (FVR)Same as forfull-voltage non-reversing with addition offollowing:Auxiliaryenclosure

ALL STARTERSEnclosure NEMA Type 1 general purpose,

ventilated (one-high) . . . . 1- Drawout three-pole reversing contactorOn doorConnections

Incoming Line . . Entrance top or bottom. Cablesseparated by barrier from both low-and high-voltage compartments.

Motor Cable . . . . Entrance top or bottom. Cablesseparated by barrier from both low-and high-volt age compartments.

1- FORWARD-REVERSE-STOP pushbutton, oil-tight, flush-mounted(replacing START-STOP push button)

Reduced-Voltage Non-Reversing (RVNR)Same as forfull-voltage non-reversing with addition of following:AuxiliaryenclosureSQUIRREL-CAGE-MOTOR STARTERS

Full-Voltage Non-Reversing (FVNR)High-voltagecompartment . .1- Draw out contactor-and-fuse (DC coil)

assembly consisting of :1- Set of current-limiting fuses and

supports1- Isolating mechanism, externally

operated. Mechanism operates insequence to (1) open secondary ofcontrol transformer, (2) withdrawstabs, (3) close shutters over powerconnectors.

1- Three-pole contactor1- Set of mechanical interlocks to

prevent withdrawal of stabs whilecontactor is closed

1- Control-power transformer (115-voltsecondary)

3-Current transformersX-Terminals for motor cable connections1- Set of mechanical door interlocks to

prevent opening door to high-voltagecompartment until panel is isolatedand to prevent energizing panel untildoor to high-voltage compartment isclosed

X-Incoming-line terminals

(one-high) . . . . 1- Three-pole RUN contactor1- Primary starting reactor with taps for

50-, 65- and 80-percent line voltageLow-voltagecompartment . .1- Definite time transfer relay

WOUND-ROTOR-MOTOR STARTERSNon-ReversingSame as for squirrel-cage FVNR with addition offollowing:Secondaryenclosure 1- Set of intermediate accelerating

contactors1- Final accelerating contactor

Resistorenclosure . . . . 1- Set of definite-time accelerating relays

1- Starting-duty resistor, NEMA Class 135

ReversingSame as for non-reversing xvith addition of follotving:Auxiliaryenclosure

j1- Drawout three-pole reversing

contactor1- FORWARD-REVERSE-STOP push


On door

BRUSH-TYPE SYNCHRONOUS-MOTOR STARTERSFull-Voltage Non-Reversing (FVNR)Same as for squirrel-cage FVNR xvith addition of follotving:Low-voltagecompartment . .1- Field application and discharge

contactor1- CR192 pSPM for precision-angle field

application, load-angle removal, andsquirrel-cage protection

1- Line amps display - digital readout(part of CR192 pSPM)

1- Field amps display - digital readout(part of CR192 pSPM)

Low-voltagecompartment . .1- Three-pole, ambient-compensated

thermal overload relay, hand-resetX-Instantaneous undervoltage protection1- Control-circuit fuse

On door 1- START-STOP push button, oil-tight,flush-mounted

On door

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1- Power factor display (part of CR192|XSPM)

1- Field starting and discharge resistorOn top

Reduced-Voltage Non-Reversing (RVNR)Same as forfull-voltage non-reversing with addition offollowing:Auxiliaryenclosure 1- Three-pole run contactor

1- Primary starting reactor with taps for50-, 65-, and 80-percent line voltage

Low-voltagecompartment . .1- Definite time transfer relay

BRUSHLESS SYNCHRONOUS-MOTOR STARTERS

Full-Voltage Non-Reversing (FVNR)Same as for squirrel-cage FVNR with addition of following:Low-voltagecompartment . .1- CR192 pSPM for pullout protection,

timed exciter field application andstall protection

1- Brushless exciter field supply1- Line amps display - digital readout

(part of CR192 pSPM)1- Power factor display (part of CR192

pSPM)1- Field amps display - digital

readout(part of CR192 pSPM)1- Variable autotransformer

On door

Reduced-Voltage Non-Reversing (RVNR)Same as forfull-voltage non-reversing with addition of following:Auxiliaryenclosure j1- Three-pole RUN contactor

1- Primary starting reactor with taps for50-, 65-, and 80-percent line voltage

Low-voltagecompartment . .1- Definite-time transfer relay

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GE Electrical Distribution and Control

General Electric Company41 Woodford AvenuePlainville, CT 06062© 1996 General Electric Company6ET-6840B 0496 BL



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