CATALOGO NX PLUS C.pdf

Power Transmission and Distribution

! "#$#%Medium-Voltage Switchgear

Catalog HA 35.41 2007

Fixed-Mounted Circuit-Breaker Switchgear Type NXPLUS C up to 24 kV, Gas-Insulated Siemens HA 35.41 20072

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#Types

Siemens AG 2007

Page

Fixed-mounted circuit-breaker switchgearNXPLUS C is a factory-assembled, type-tested,metal-enclosed, metal-clad,SF6-insulated switchgearfor single-busbar anddouble-busbar applicationsfor indoor installation.

Circuit-breaker panel (example)

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The products and systems described in this catalogare manufactured and sold according to a certifiedquality and environmental management system(acc. to ISO 9001 and ISO 14001).(DQS Certificate Reg. No. DQS 003473 QM UM).The certificate is accepted in all IQNet countries.

Application

Types, typical uses,ratings 2 to 4

Requirements

Features, safety, technology 4 and 5

Technical Data

Electrical data 6 and 7Room planning 8Shipping data, classification 9

Dimensions

Front views, sections,floor openings, fixing points 10 to 17

Product Range

Single-busbar panels 18 to 20Double-busbar panels 21

Design

Basic panel design 22

Components

Vacuum circuit-breaker 23 and 24Three-position switch 25 and 26HV HRC fuse assembly 27 and 28Vacuum contactor, motor protection 29Busbars 30Current and voltage transformers 31 to 33Panel connection 34 to 39Indicating and measuring equipment 40 to 43

Standards

Standards, specifications, guidelines 44 and 45

Notes

46

Invalid: Catalog HA 35.41 2005

Fixed-Mounted Circuit-Breaker Switchgear Type NXPLUS C up to 24 kV, Gas-Insulated Siemens HA 35.41 2007 3

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Application:Public power supply system

NXPLUS C switchgear20 kV (example)

Application:Industry

Application:Industry and offshore

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fTypical uses

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Environmental independence

Hermetically tight, weldedswitchgear vessels made ofstainless steel make NXPLUS Cswitchgear

Insensitive to aggressiveambient conditions, such as

Salt water Air humidity Dust Temperature

Tight to ingress of foreignbodies, such as

Dust Pollution Small animals

Independent of site altitude

Compact design

Thanks to the SF6 insulation,compact dimensions arepossible

Thus,

Existing switchgear roomscan be used effectively

New constructions cost little

Costly city-area space is saved

Maintenance-free design

Switchgear vessels designedas sealed pressure systems,maintenance-free switchingdevices and enclosed cableplugs ensure

Maximized power supplyreliability

Personnel safety

Sealed-for-life design accord-ing to IEC 62 271-200 (sealedpressure system)

Installation, operation, exten-sion and replacement with-out SF6 gas work

Reduced operating costs

Cost-efficient investment

No maintenance cycles

Innovations

The use of digital second-ary systems and com-bined protection andcontrol devices ensures

Clear integration in proc-ess control systems

Flexible and highly sim-plified adaptation to newsystem conditions andthus to cost-efficientoperation

Fixed-mounted circuit-breaker switchgearNXPLUS C is used in transformerand switching substations, e.g., in:

Power supply companies Power stations Cement industry Automobile industry Iron and steel works Rolling mills Mining industry Textile, paper and food industries Chemical industry Petroleum industry Pipeline installations Offshore installations Electrochemical plants Petrochemical plants Shipbuilding industry Diesel power plants Emergency power supply installations Lignite open-cast mines Traction power supply systems

1) 42 kV/75 kV according to somenational requirements

2) 1200 mm for rated normalfeeder currents of 2000 A,2300 A and 2500 A

Electrical data (maximum values) and dimensions

Rated voltage kV 7.2 12 15 17.5 24

Rated frequency Hz 50/60 50/60 50/60 50/60 50/60

Rated short-duration power-frequency withstand voltage

kV 20 28 1) 36 38 50

Rated lightning impulsewithstand voltage

kV 60 75 1) 95 95 125

Rated peak withstand current kA 80 80 80 63 63

Rated short-circuit makingcurrent

kA 80 80 80 63 63

Rated short-timewithstand current 3 s

kA 31.5 31.5 31.5 25 25

Rated short-circuit breakingcurrent

kA 31.5 31.5 31.5 25 25

Rated normal current of busbar A 2500 2500 2500 2500 2500

Rated normal current offeeders

A 2500 2500 2500 2000 2000

Width mm 600 2) 600 2) 600 2) 600 2) 600 2)

Depth without pressurerelief duct at the rear

with pressurerelief duct at the rear

mm

mm

1100

1225

1100

1225

1100

1225

1100

1225

1100

1225

Height mm 2250 2250 2250 2250 2250

Typical uses, ratings Features

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Personal safety

Safe-to-touch and hermetical-ly sealed primary enclosure

Cable terminations, busbarsand voltage transformers aresurrounded by earthed layers

All high-voltage parts includ-ing the cable terminations,busbars and voltage trans-formers are metal enclosed

Capacitive voltage detectingsystem to verify safe isolationfrom supply

Operating mechanisms andauxiliary switches safely ac-cessible outside the primaryenclosure (switchgear vessel)

Due to the system design,operation is only possiblewith closed switchgear enclo-sure

Standard degree of protec-tion IP 65 for all high-voltageparts of the primary circuit,IP 3XD for the switchgearenclosure according toIEC 60 529 and VDE 0470-1

High resistance to internalarcs by logical mechanicalinterlocks and testedswitchgear enclosure

Panels tested for resistance tointernal faults up to 31.5 kA

Logical mechanical interlocksprevent maloperation

Make-proof earthing bymeans of the vacuum circuit-breaker

Security of operation

Hermetically sealed primaryenclosure independent ofenvironmental effects (pollu-tion, humidity and smallanimals)

Maintenance-free inan indoor environment(IEC 62 271-1 andVDE 0671-1)

Operating mechanisms ofswitching devices accessibleoutside the primary enclo-sure (switchgear vessel)

Metal-coated, plug-in induc-tive voltage transformersmounted outside the SF6switchgear vessel

Current transformers asring-core current transfor-mers mounted outside theSF6 switchgear vessel

Complete logical mechanicalinterlocking system

Welded switchgear vessels,sealed for life

Minimum fire load

Type and routine-tested

Standardized, NC productionprocesses

Quality assurance in accord-ance with DIN EN ISO 9001

More than 500,000switchgear panels of Siemensin operation worldwide formany years

Option: Aseismic design

Reliability

Type and routine-tested

Standardized, NC productionprocesses

Quality assurance in accord-ance with DIN EN ISO 9001

More than 500,000switchgear panels of Siemensin operation worldwide formany years

General

Three-pole enclosure of theprimary part consisting of aswitchgear vessel made ofstainless steel

Insulating gas SF6 Three-position switch as

busbar disconnector andfeeder earthing switch

Make-proof earthing bymeans of the vacuum circuit-breaker

Compact dimensions due toSF6 insulation

Hermetically tight, weldedswitchgear vessel made ofstainless steel

Single-pole, solid-insulated,screened busbars, plug-intype

Cable connection with out-side-cone plug-in system, orfor connection of solid-insu-lated bars

Wall-standing or free-stand-ing arrangement

Cable connection access fromfront

Option: Cable connectionaccess from rear (only circuit-breaker panel 1250 A)

Installation and extension ofexisting switchgear on bothsides without gas work andwithout modification of exist-ing panels

Interlocks

According to IEC 62 271-200and VDE 0671-200

Logical mechanical interlocksprevent maloperation

Three-position disconnectorcan only be operated with cir-cuit-breaker in OPEN position

Circuit-breaker or contactorcan only be operated withthree-position switch in endposition and operating leverremoved

Switch-disconnector, contac-tor, ring-main and meteringpanels are not interlockeddue to their own switchingcapacity

Three-position disconnectorinterlocked against the cir-cuit-breaker in circuit-breakerpanels and in bus sectionali-zers with one panel width

Locking device for feeder

Locking device for three-position switch

Cable compartment cover(access to HV HRC fuses)always interlocked againstthe three-position switch-disconnector in panels withHV HRC fuses (switch-discon-nector panel, metering paneland contactor panel withfuses)

Option: Cable compartmentcover interlocked against thethree-position switch (circuit-breaker panel, disconnectorpanel, contactor panel with-out fuses, ring-main panel)

Option: Electromagneticinterlocks

Option: Actuating openingscan be locked with padlocks

Option: Locking device forfeeder earthed

Modular design

Panel replacement possiblewithout SF6 gas work

Low-voltage compartmentcan be removed, plug-in buswires

Transformers

Current transformers notsubjected to dielectric stress

Easy replacement of ring-corecurrent transformers

Metal-coated, plug-in anddisconnectable voltage trans-formers

Vacuum circuit-breaker

Maintenance-free undernormal ambient conditionsaccording to IEC 62 271-1and VDE 0671-1

No relubrication or readjust-ment

Up to 10,000 operatingcycles

Vacuum-tight for life

Secondary systems

Numerical protection,measuring and controlequipment

Option: Customary multi-function protection relay withintegrated protection, con-trol, communication, operat-ing and monitoring functions

Can be integrated in processcontrol systems

Safety Technology

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Commonelectrical data,filling pressureandtemperature

Rated insulation level Rated voltage Ur kV 7.2 12 15 17.5 24Rated short-duration power-freq. withstand voltage Ud: phase-to-phase, phase-to-earth, open contact gap kV across the isolating distance kV

2023

28 1)32 1)

3639

3845

5060

Rated lightning impulse withstand voltage Up: phase-to-phase, phase-to-earth, open contact gap kV across the isolating distance kV

6070

75 1)85 1)

95110

95110

125145

Rated frequency fr 50/60 HzRated normal current Ir 2) for the busbar up to A 2500 2500 2500 2500 2500Rated filling level pre 3) 150 kPa (absolute) at 20 CMinimum functional level pme 3) 130 kPa (absolute) at 20 CAmbient air temperature 5 C to +55 C

Panel dataCircuit-breakerpanel630 A

Rated normal current Ir 2) A 630 630 630 630 630Rated short-timewithstand current Ik

for switchgear with tk = 1 s up to kA 20 25 20 25 20 25 20 25 20 25for switchgear with tk = 3 s up to kA 20 20 20 20 20

Rated peak withstand current Ip up to kA 50 63 50 63 50 63 50 63 50 63Rated short-circuit making current Ima up to kA 50 63 50 63 50 63 50 63 50 63Rated short-circuit breaking current Isc up to kA 20 25 20 25 20 25 20 25 20 25

Electrical endurance ofvacuum circuit-breakers

at rated normal current 10,000 operating cyclesat rated short-circuit breaking current 50 breaking operations

Circuit-breakerpanel and bussectionalizer1000 A 4)1250 A 5)2000 A2300 A2500 A

Rated normal current Ir 2) AAAAA

10001250200023002500

10001250200023002500

10001250200023002500

100012502000

100012502000

Rated short-timewithstand current Ik

for switchgear with tk = 1 s up to kA 31.5 31.5 31.5 25 25for switchgear with tk = 3 s up to kA 31.5 31.5 31.5 25 25

Rated peak withstand current Ip up to kA 80 80 80 63 63Rated short-circuit making current Ima up to kA 80 80 80 63 63Rated short-circuit breaking current Isc up to kA 31.5 31.5 31.5 25 25



Switch-disconnectorpanel(with HV HRCfuses)

Rated normal current Ir 2) for feeder 6) A 200 200 200 200 200Rated short-timewithstand current Ik


Rated peak withstand current Ip 6) up to kA 80 80 80 63 63Rated short-circuit making current Ima 6) up to kA 80 80 80 63 63Dimension e of HV HRC fuse links mm 292 7) 292 7) 442 442 442

Ring-mainpanel(switch-disconnectorpanel withoutHV HRC fuses)

Rated normal current Ir 2) for feeder A 630 630 630 630 630Rated short-timewithstand current Ik

for switchgear with tk = 1 s up to kA 20 25 20 25 20 25 20 25 20for switchgear with tk = 3 s up to kA 20 20 20 20 20

Rated peak withstand current Ip up to kA 50 63 50 63 50 63 50 63 50Rated short-circuit making current Ima up to kA 50 63 50 63 50 63 50 63 50

Disconnectorpanel1000 A 4)1250 A2000 A2300 A2500 A

Rated normal current Ir 2) AAAAA

10001250200023002500

10001250200023002500

10001250200023002500

100012502000

100012502000



Rated peak withstand current Ip up to kA 80 80 80 63 63

Contactorpanel(with HV HRCfuses)

Rated normal current Ir 2) for feeder 6) A 450 450 450 450 450Rated short-timewithstand current Ik

for switchgear with tk = 1 s up to kA 31.5 8) 31.5 8) 31.5 8) 25 8) 25 8)

for switchgear with tk = 3 s up to kA 31.5 8) 31.5 8) 31.5 8) 25 8) 25 8)

Rated peak withstand current Ip 6) up to kA 80 80 80 63 63Rated short-circuit making current Ima 6) up to kA 80 80 80 63 63Electrical endurance at rated normal current 100,000 or 500,000 operating cyclesDimension e of HV HRC fuse links mm 292 7) 292 7) 442 442 442

Metering panel(with HV HRCfuses)



Rated peak withstand current Ip 6) up to kA 80 80 80 63 63Dimension e of HV HRC fuse links mm 292 7) 292 7) 442 442 442

Electrical data, filling pressure, temperature for single-busbar switchgear

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Footnotes for pages 6 and 7

1) Higher values of the rated short-duration power-frequencywithstand voltage available with: 42 kV for phase-to-phase,

phase-to-earth, open contactgap as well as

48 kV across the isolatingdistance

Higher values of the rated lightningimpulse withstand voltage: 95 kV for phase-to-phase, phase-to-

earth, open contact gap as well as 110 kV across the isolating distance

2) The rated normal currents applyto ambient air temperatures ofmax. 40 C. The 24-hour meanvalue is max. 35 C(acc. to IEC 62 271-1/ VDE 0671-1)2300 A with natural ventilation2500 A with forced ventilation

3) Pressure values for SF6 insulatedswitchgear vessels

4) Bus sectionalizer panel 1000 A anddisconnector panel 1000 A only possiblewith rated short-time withstand current Ik25 kA, 1 s and 3 s, rated peak with-stand current Ip 63 kA and rated short-circuit breaking current ISC 25 kA

5) Bus sectionalizer panel 1250 A in2 panel widths only possible with ratedshort-time withstand current Ik 25 kA,1 s and 3 s, rated peak withstand current Ip63 kA and rated short-circuit breakingcurrent ISC 25 kA

6) Depending on the HV HRC fuselink, observe max. permissible let-throughcurrent ID of HV HRC fuse links

7) Extension tube (150 mm long)required additionally

8) Applies to combination of vacuumcontactor with HV HRC fuses:Vacuum contactor without HV HRC fusereaches rated short-time withstandcurrent Ik 8 kA, 1 s, and rated peakwithstand current Ip 20 kA (applies tothe complete switchgear)

9) Bus coupler 1250 A on request

Commonelectrical data,filling pressureandtemperature

Rated insulation level Rated voltage Ur kV 7.2 12 15 17.5 24Rated short-duration power-freq. withstand voltage Ud: phase-to-phase, phase-to-earth, open contact gap kV across the isolating distance kV

2023

28 1)32 1)

3639

3845

5060

Rated lightning impulse withstand voltage Up: phase-to-phase, phase-to-earth, open contact gap kV across the isolating distance kV

6070

75 1)85 1)

95110

95110

125145

Rated frequency fr 50/60 HzRated normal current Ir 2) for the busbar up to A 2500 2500 2500 2500 2500Rated filling level pre 3) 150 kPa (absolute) at 20 CMinimum functional level pme 3) 130 kPa (absolute) at 20 CAmbient air temperature 5 C to +55 C

Panel dataCircuit-breakerpanel, buscoupler 9)1000 A


for switchgear with tk = 1 s up to kA 25 25 25 25 25for switchgear with tk = 3 s up to kA 25 25 25 25 25

Rated peak withstand current Ip up to kA 63 63 63 63 63Rated short-circuit making current Ima up to kA 63 63 63 63 63Rated short-circuit breaking current Isc up to kA 25 25 25 25 25



Incomingsectionalizer1250 A


for switchgear with tk = 1 s up to kA 25 25 25 25 25for switchgear with tk = 3 s up to kA 25 25 25 25 25

Rated peak withstand current Ip up to kA 63 63 63 63 63Rated short-circuit making current Ima up to kA 63 63 63 63 63Rated short-circuit breaking current Isc up to kA 25 25 25 25 25



Furtherpanel types

The above-mentioned panel types can on request be combinedwith panel types of the single-busbar range.

Electrical data, filling pressure, temperature for double-busbar switchgear

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** For panel replacement:

Control aisle W 1400 mmnecessary

*** Lateral wall distanceW 50 mm optionallypossible on the left or right

Room planning for double-busbar switchgear Free-standing arrangement (top view)

* 125-mm-deep pressure reliefduct at the rear

** Depending on national require-ments; for extension/panelreplacement:Control aisle 1400 mmrecommended

*** Lateral wall distances:On the left or right W 500 mmrecommended

**** For panel width, see dimensionson pages 10 to 17

Room height 2800 mm

Switchgear arrangement

For single-busbar applica-tions:

Wall-standing arrangementor

Free-standing arrangement Face-to-face arrangement

accordingly

For double-busbar applica-tions:

Back-to-back arrangement(free-standing arrangement)

Room dimensions

See opposite dimensiondrawings

Door dimensions

The door dimensions dependon the dimensions of theindividual panels (see pages10 to 17)

Switchgear fastening

For floor openings and fixingpoints of the switchgear,see pages 10 to 17

Foundations: Steel structure Steel-reinforced concrete

with foundation rails,welded or bolted on

Panel dimensions

See pages 10 to 17

Weights

Single-busbar panels

Panels for 1250 A:Approx. 800 kg

Panels for > 1250 A:Approx. 1400 kg

Double-busbar panels

Panels for 1250 A:Approx. 1600 kg

Wall-standing arrangement (top view)Panels without pressure relief duct

Room planning for single-busbar switchgear

Wall-standing arrangement(same as left side), but panelswith pressure relief duct

Free-standing arrangement (top view)Panels with pressure relief duct

Room height 2800 mm

Room height 2800 mm

Room planning

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Transport

NXPLUS C switchgear is deliver-ed in form of individual panels.

The following must be noted:

Transport facilities on site

Transport dimensions andweights

Size of door openings inbuilding

In case of double-busbar panelsthe A and B sides are suppliedseparately.

Packing

Place of destination insideGermany or other Europeancountries

Means of transport:Rail and truck

Type of packing: Panels on open pallets Open packing with PE

protective foil

Place of destination overseas

Means of transport:Ship

Type of packing: Panels on open pallets In closed crates with sealed

upper and lower PEprotective foil

With desiccant bags With sealed wooden base Max. storage time: 6 months

1) Average values depending onthe degree to which panels areequipped

2) The loss of service continuity cate-gory is referred to the completeswitchgear, i.e. the panel with thelowest category determines theloss of service continuity categoryof the complete switchgear.

Transport dimensions, transport weights 1)

Panel width

mm

Transport dimensionsWidth x Height x Depth

mm x mm x mm

Transport weightwith packing without packing

approx. kg approx. kg

Single-busbar switchgearTransport inside Germany or to other European countries

1 x 600 1100 x 2470 x 1450 900 800

1 x 1200 1450 x 2470 x 1450 1500 1400

1 x 600 (cable connection top rear) 1100 x 2470 x 2100 900 800

Transport overseas

1 x 600 1130 x 2650 x 1450 900 800

1 x 1200 1480 x 2650 x 1450 1500 1400

1 x 600 (cable connection top rear) 1130 x 2650 x 2100 900 800

Double-busbar switchgearTransport inside Germany or to other European countries

1 x 600 1100 x 2470 x 1450 900 800

Transport overseas

1 x 600 1130 x 2650 x 1450 900 800

Classification of the NXPLUS C switchgear according to IEC 62 271-200

Design and construction

Partition class PM (metallic partition)

Loss of service continuity category 2)

Panels with HV HRC fuses without HV HRC fuses

LSC 2ALSC 2B

Accessibility to compartments (enclosure) Busbar compartment Switching-device compartment Low-voltage compartment Cable compartment

without HV HRC fuses with HV HRC fuses

Tool-basedNon-accessibleTool-based

Tool-basedInterlock-controlled and tool-based

Internal arc classification

Designation of internal arc classification IACIAC for

Wall-standing arrangement Free-standing arrangement

7.2 kV, 12 kV, 15 kVIAC A FL 31.5 kA, 1 sIAC A FLR 31.5 kA, 1 s

17.5 kV, 24 kVIAC A FL 25 kA, 1 sIAC A FLR 25 kA, 1 s

Type of accessibility A

F L R

Switchgear in closed electrical service location,access for authorized personnel only (according to IEC 62 271-200)FrontLateralRear (for free-standing arrangement)

Arc test current 25 kA, 31.5 kA

Test duration 1 s

Shipping data, classification

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Front views, sections, floor openings, fixing points for single-busbar switchgear

*)##

Circuit-breaker panels

630 A 1000 A 1250 A

2000 A, 2300 Aand 2500 A

Legend and footnotes forpages 10 and 11

1 Floor opening forcontrol cables

2 Option: Pressurerelief duct

3 Mounting holefor M8 / M10

4 Mounting holefor M8 / M10 (foraseismic version only)

5 Floor opening forhigh-voltage cables

6 Cable compartment /pressure relief duct

1) 2650 mm for higherlow-voltage compartment

2) 752 mm for deepercable compartment cover



5) When only one cable isconnected, the dimensionis reduced by 275 mm



*)##

Circuit-breaker panels (for top-rear cable connection)

For legend and foot-notes, see page 10

1250 A



*)##

Disconnector panels

1000 A 1250 A

2000 A, 2300 Aand 2500 A

Legend and footnotes forpages 12 and 13




4 Mounting holefor M8 / M10(for aseismic version only)







( p )


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Bus sectionalizers with disconnector

on the left on the left and on the rightof the circuit-breaker

1000 A 1250 A

1 panel width 1 panel width

1250 A

2 panel widths

2000 A, 2300 Aand 2500 A

1 panel width




*)##

Switch-disconnector panel with HV HRC fuses

Ring-main panel(switch-disconnector panel without HV HRC fuses)

Vacuum contactor panel with HV HRC fuses Metering panel



Front views, sections, floor openings, fixing points for double-busbar switchgear

*)##


Legend and footnotesfor pages 14 and 15






7 Option:HV HRC fuses






1000 A

Side A Side B Side B Side A


Incoming sectionalizer

Side A Side B

1250 A

*)##Front views, sections, floor openings, fixing points for double-busbar switchgear

Legend and footnotesfor pages 16 and 17


2 Pressure relief duct









Side B Side A


Bus coupler

1000 A

Side A Side B

*)##Front views, sections, floor openings, fixing points for double-busbar switchgear


Side B Side A


Vacuumcircuit-breaker

Three-positiondisconnector

Capacitive voltagedetecting system

Disconnectable andplug-in voltage trans-former

Forced ventilationat 2500 A

Busbar earthingswitch

Plug-in voltagetransformer

Current transformer

Surge arresteror limiter

Cable connection withoutside-cone plugs(not included in thescope of supply)


HA35

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1) Only for 1250 A

2000 A, 2300 A and 2500 A630 A

1250 A, top-rear cable connection1000 A and 1250 A





Forced ventilationat 2500 A



Current transformer




HA35

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1bep

s


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Disconnector panels

1000 A and 1250 A

Bus sectionalizers

1250 A, 2 panel widths

1250 A, 1 panel width

2000 A, 2300 A and 2500 A

1) Only for 1250 A

2000 A, 2300 A and 2500 A, 1 panel width



Vacuum contactor

HV HRC fuses

Three-positionswitch-disconnector





Current transformer

2nd earthingswitch for fuses

HA35

-254

1bep

s


'

Switch-disconnector panel

1) Only possible when vacuum contactor panelis designed without fuse

Ring-main panel

Vacuum contactor panel Metering panel

2)





Plug-in voltagetransformer,mounted separately

Current transformer




Panel bars


HA35

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1bep

s

Double-busbar panels

'

Circuit-breaker panels Incoming sectionalizer

Bus coupler

1250 A

1000 A

1000 A

Abbreviations

SS1 = Busbar 1SS2 = Busbar 2


Insulating system

Switchgear vessel filled with SF6 gas

Features of SF6 gas: Non-toxic Odourless and colourless Non-inflammable Inert Heavier than air Electronegative (high-quality

insulator)

Pressure of SF6 gas in theswitchgear vessel (absolute values):

Rated filling level: 150 kPa Design pressure: 180 kPa Design temperature

of SF6-gas: 80 C Operating pressure of bursting

disk: 300 kPa Bursting pressure: 550 kPa Gas leakage rate: < 0.1 % per year

Panel design

Factory-assembled, type-tested

Metal-enclosed, metal-clad

Hermetically tight, weldedswitchgear vessel made ofstainless steel

Single-pole, solid-insulated,screened busbars, plug-in type

Maintenance-free

Degree of protection IP 65 for all high-voltage parts

of the primary circuit IP 3XD for the switchgear enclosure

Vacuum circuit-breaker orvacuum contactor

Three-position disconnector fordisconnecting and earthing bymeans of the circuit-breaker

Make-proof earthing by meansof the vacuum circuit-breaker

Three-position switch-disconnector

Cable connection withoutside-cone plug-in systemaccording to DIN EN 50 181

Wall-standing or free-standingarrangement

Installation and possible later exten-sion of existing panels without gaswork

Replacement of switchgear vesselwithout gas work

Replacement of instrument trans-formers without gas work, as theyare located outside the gascompartments

Enclosure made of galvanized sheet-steel, front cover, rear cover and endwalls painted in colour light basic(SN 700)

Low-voltage compartment remov-able, plug-in bus wires

Circuit-breaker panel (example)

Front view

Detail Z:

Sectional view (cable connection from the front)

1 Low-voltagecompartment

2 Multifunction protectionrelay SIPROTEC 4 (example)

3 Position indicatorfor circuit-breaker

4 Actuating opening forcharging the circuit-breaker springs

5 ON pushbutton forcircuit-breaker

6 Spring chargedindicator

7 Operations counterfor circuit-breaker

8 Position indicatorfor disconnectingfunction of three-positionswitch

9 Ready-for-serviceindicator

10 Position indicatorfor ready-to-earthfunction of three-position switch

11 Control gate andlocking device fordisconnecting/earthingfunctions of three-position switch

12 Interrogation lever

13 Actuating openingfor disconnectingfunction of three-positionswitch

14 Actuating openingfor ready-to-earthfunction of three-positionswitch

15 Option: Busbar voltagetransformer, plug-in type

16 Busbars, single-pole,fully-insulated, plug-intype, earthed on theoutside

17 Option: Busbar currenttransformer

18 Switchgear vessel,hermetically welded,filled with SF6 gas

19 Three-positiondisconnector

20 OFF pushbutton forcircuit-breaker

21 Vacuum interrupter ofcircuit-breaker

22 Pressure relief(bursting disk)

23 Capacitive voltagedetecting system

24 Locking device for feeder(suitable for padlocking)

25 Disconnecting facility forfeeder voltage transformer

26 Bushing for feeder voltagetransformer

27 Option: Feeder voltagetransformer

28 Option: Pressure relief duct

29 Cable compartment

30 Operating mechanism forthree-position switch

31 Operating mechanism forcircuit-breaker

32 Feeder current transformer

33 Cable connection withoutside-cone T-plug

34 Operation of disconnectingfacility of the feeder voltagetransformer

35 Earthing busbar withearthing connection

36 Air guides for cableconnection

Basic panel design

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8

9

10

11

6

5

4

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Features

According to IEC 62 271-100and VDE 0671-100 (forstandards refer to page 44)

Application in hermeticallywelded switchgear vesselin conformity with the sys-tem

Climate-independentvacuum interrupter polesin the SF6-filled switch-gear vessel

Maintenance-free forindoor installation accord-ing to IEC 62 271-1 andVDE 0671-1

Individual secondary equip-ment

A metal bellows is used forgasketless separation ofthe SF6 insulation and theoperating mechanism asalready used with successfor over 1 million vacuuminterrupters

Trip-freemechanism

The vacuum circuit-breakeris fitted with a trip-freemechanism according toIEC 62 271 and VDE 0671.

Switching duties andoperatingmechanisms

The switching duties of thevacuum circuit-breaker are

dependent, among otherfactors, on its type ofoperating mechanism.

Motor operatingmechanism

Motor operating stored-energy mechanism

For auto-reclosing (K) For synchronization and

rapid load transfer (U)

Further operatingmechanism features

Located outside the switch-gear vessel in the operatingmechanism box and be-hind the control board

Stored-energy springmechanism for 10,000operating cycles

Operatingmechanismfunctions

Motor operatingmechanism 1) (M1 *)

In the case of motor opera-ting mechanism, the closingspring is charged by meansof a motor and latchedin the charged position(spring charged indicationis visible). Closing is effectedeither by means of an ONpushbutton or a closing so-lenoid. The closing spring isrecharged automatically (forauto-reclosing).

Abbreviations for switching dutiesand applications:

U = Synchronization andrapid load transfer(make time 90 ms)

K = Auto-reclosing

1) Motor rating at24 V to 220 V DC: 350 W110 V and 220 V AC: 400 VA

* Item designation

For further technical data and description of typical applications,please refer also to Catalog HG 11.05 3AH5 Vacuum Circuit-Breakers

12 Fixed terminal

13 Pole support

14 Vacuum interrupter

15 Moving terminal

16 Metal bellows

17 Switchgear vessel,SF6-insulated, with vacuuminterrupter

18 Operating mechanism box(see figure above)

19 Operating kinematics

Section through the vacuum circuit-breaker

Vacuum circuit-breaker(operating mechanism open)

1 Gear with motor (M1 *)2 Position switch (S4 *)3 Closing spring

4 Closing spring chargedindicator

5 Closing solenoid (Y9 *)6 Operations counter

7 Auxiliary switch 6NO+6NC (S1 *),option: 12NO+12NC

8 Position indicatorCLOSED/OPEN for circuit-breaker

9 Option: 2nd release (Y2 *)10 1st release (Y1 *)11 Locking device for feeder

Endurance class of circuit-breaker

Function Class Standard Propery of NXPLUS C

BREAKING M2 IEC 62 271-100 10,000 times mechanicallywithout maintenance

E2 IEC 62 271-100 10,000 times rated normalcurrent without maintenance50 times rated short-circuitbreaking current without main-tenance

C2 IEC 62 271-100 Very low probability of restrikes

Operating times

Closing time Closing solenoid < 75 ms

Opening time 1st release2nd release

< 65 ms< 50 ms

Arcing time at 50 Hz < 15 ms

Break time 1st release2nd release

< 80 ms< 65 ms

Dead time 300 ms

Total charging time < 15 s


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Rated operating sequences

Rapid load transfer (U): O-t-CO-t'-CO (t, t' 3 min)Auto-reclosing (K): O-t-CO-t'-CO (t 0.3 s, t' 3 min)Multiple-shot reclosing: O-t-CO-t'-CO-t'-CO-t'-CO (t 0.3 s, t' 15 s)

5 combination possibilities of the releases

Release Release combination

1 2 3 4 5

1st shunt release type 3AY15 10

2nd shunt release type 3AX11 01

Current-transformer operated release type3AX11 02, 0.5 A or type 3AX11 04, 0.1 Ws

Undervoltage release type 3AX11 03

1 unit of each release; max. 2 releases can be combined

and OPEN commands arepresent at the vacuum circuit-breaker, the vacuum circuit-breaker will return to theOPEN position after closing.It remains in this position untila new CLOSE command isgiven. In this manner continu-ous closing and opening(= pumping) is avoided.

Circuit-breaker tripping signal

For electrical signalling(as pulse > 10 ms), e.g. to re-mote control systems, in thecase of automatic tripping(e.g. protection)

Via limit switch (S6 *) andcut-out switch (S7 *)

Varistor module

To limit overvoltages toapprox. 500 V for protectiondevices (when inductivedevices are mounted in thevacuum circuit-breaker)

For auxiliary voltagesW 60 V DC

Auxiliary switch

Type 3SV9 (S1 *)

Standard: 6NO+6NC, of which3NO+4NC contacts are free 1)

Option: 12NO+12NC, of which9NO+6NC contacts are free 1)

Position switch

Type 3SE4 (S4 *)

For signalling closing springcharged

Mechanical interlocking

Mechanical interlockingto the three-positiondisconnector

During operation of thethree-position switch, thevacuum circuit-breakercannot be operated

Secondary equipment

The scope of the secondaryequipment of the vacuumcircuit-breaker depends on thetype of application and offers awide range of variations, thusallowing even the highestrequirements to be satisfied:

Closing solenoid

Type 3AY15 10 (Y9 *)

For electrical closing

Shunt releases

Types: Standard: 3AY15 10 (Y1 *) Option: 3AX11 01 (Y2 *),

with energy store

Tripping by protection deviceor electrical actuation

Current-transformer operatedrelease

Type 3AX11 02 (Y4*), 0.5 A

Type 3AX11 04 (Y6 *) fortripping pulse W 0.1 Ws inconjunction with suitable pro-tection systems

Used where no externalauxiliary voltage is available,tripping by protection device

Undervoltage release

Type 3AX11 03 (Y7 *)

Comprising: Energy store and unlatching

mechanism Electromagnetic system,

which is permanentlyconnected to voltage whilethe vacuum circuit-breaker isclosed; tripping is initiatedwhen this voltage drops

Connection to voltage trans-formers possible

Anti-pumping(mechanical and electrical)

Function: If constant CLOSE

1) For utilizationby thecustomer

Abbreviations:NO = normally-open contactNC = normally-closed contact

* Itemdesignation

Switching rate of the vacuum interrupter

Electrical data

Rated voltage 24 kVRated short-circuit breaking current 25 kARated normal current 2000 A

Breaking current (r.m.s. value)

Perm

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atin

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Breaking current (r.m.s. value)Electrical data

Rated voltage 15 kVRated short-circuit breaking current 31.5 kARated normal current 2500 A

O = OPEN operation

CO = CLOSE operation with subsequent OPENoperation at the shortest internal close-open time of the vacuum circuit-breaker


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7

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9

Common features

According toIEC 62 271-102 andVDE 0671-102 (forstandards refer to page 44)

Application in hermeti-cally welded switchgearvessel in conformity withthe system

Climate-independentcontacts in the SF6 filledswitchgear vessel

Maintenance-free forindoor installationaccording to IEC 62 271-1and VDE 0671-1

Individual secondaryequipment

A metal bellows is usedfor gasketless separationof the SF6 insulation andthe operating mecha-nism as already usedwith success for over1 million vacuum inter-rupters

Compact design due toshort contact gaps inSF6 gas

Operation via gas-tightwelded-in metal bellowsat the front of the switch-gear vessel

Reliable switch positionup to the operating frontof the panel


Application in Circuit-breaker panel from

1000 A to 2500 A (withinterlock against thecircuit-breaker)

Disconnector panel from1000 A to 2500 A

Bus sectionalizer from1000 A to 2500 A

1000 mechanical operat-ing cycles for CLOSED /OPEN / READY-TO-EARTH


Application in Circuit-breaker panel 630 A

(as disconnector withinterlock against thecircuit-breaker)

Switch-disconnector panel Ring-main panel Contactor panel Metering panel

1000 mechanical operat-ing cycles for CLOSED /OPEN / EARTHED

Switching functions asgeneral-purpose switch-disconnector according to

IEC 60 265-1 VDE 0670-301 IEC 62 271-102 VDE 0671-102

(for standards refer topage 44)

Designed as a multi-cham-ber switch incorporatingthe functions

Switch-disconnector and Make-proof earthing

switch

Switch positions of the three-position switches

Three-position disconnector(in OPEN position)with vacuum circuit-breaker arranged below(view into the switchgear vessel opened at the rear)

1 Fixed contact at the busbar

2 Swivel-mounted contact blade

3 Fixed contact for feeder EARTHED

4 Operating shaft

CLOSED

OPEN

FeederEARTHED

Switch positions

Three-position switch-disconnector(exploded view)

5 Fixed contacts to earth

6 Rotary contact blade

7 Operating shaft

8 Fixed contact to the feeder

9 Fixed contact to the busbar

CLOSED

OPEN

FeederEARTHED

Switch positions

Three-position switch

)#


1) By closing the circuit-breaker

Interlocks

Selection of permissibleswitching operations bymeans of a control gatewith mechanically inter-locked vacuum circuit-breaker

Corresponding operatingshafts are not releasedat the operating frontuntil they have been pre-selected with the controlgate

Operating lever cannotbe removed until switch-ing operation has beencompleted

Circuit-breaker cannot beclosed until control gate isin neutral position again

Switchgear interlockingsystem also possible withelectromechanical inter-locks if switchgear isequipped with motoroperating mechanisms(mechanical interlockingfor manual operation re-mains)

Switch positions

CLOSED, OPEN,EARTHED orREADY-TO-EARTH

In circuit-breaker panels,the cable connection isearthed and short-circuited by closing thevacuum circuit-breaker

Operatingmechanism

Spring-operated mecha-nism operated via operat-ing lever at the operatingfront of the panel

Separate operating shaftsfor the functionsDISCONNECTING andEARTHING or READY-TO-EARTH

Option: Motor operatingmechanism for the func-tions DISCONNECTING andEARTHING or READY-TO-EARTH

Spring-operated/stored-energy mechanism for theswitch-disconnector func-tion with fuses:Opening spring pre-charged (after closing)

Maintenance-free due tonon-rusting design ofparts subjected tomechanical stress

Bearings which require nolubrication

Transmission principle foroperatingmechanisms(see opposite drawings)

Transmission of operatingpower from outside intothe gas-filled switchgearvessel by means of a metalbellows

Gas-tight

Maintenance-free

Transmission principle for operatingmechanisms


1 Gas-filled switchgear vessel

2 Gas-tight welded-in metal bellows


1 Gas-filled switchgear vessel

2 Gas-tight welded-in metal bellows

Endurance class of three-position disconnector

Function Class Standard Property of NXPLUS C

DISCONNECTING M0 IEC 62 271-102

1000 times mechanicallywithout maintenance

READY-TO-EARTH


EARTHING E2 1) IEC 62 271-102

50 times rated short-circuitmaking current Imawithout maintenance

Endurance class of three-position switch-disconnector

Function Class Standard Porperty of NXPLUS C

DISCONNECTING M0 IEC 62 271-102


LOADBREAKING

M1

E3

IEC 60 265-1

IEC 60 265-1

1000 times mechanicallywithout maintenance100 times rated mainly ac-tive load breaking current I1without maintenance


EARTHING E2 IEC 62 271-102


Three-position switch

)#


Features

Application in Switch-disconnector

panel Contactor panel Metering panel

HV HRC fuse linksaccording to DIN 43 625(main dimensions) withstriker in mediumversion acc. to IEC 60 282 /VDE 0670-4

As short-circuit protectionbefore transformers inthe switch-disconnectorpanel

As short-circuit protectionbefore motors in thecontactor panel

As short-circuit protectionbefore voltage trans-formers in the meteringpanel

With selectivity(depending on correctselection) to upstreamand downstreamconnected equipment

Single-phase insulated

Requirements accordingto IEC 62 271-105 andVDE 0671-105 fulfilledby combination of HVHRC fuses with thethree-position switch-disconnector

Climate-independent andmaintenance-free, withfuse boxes made of castresin

Fuse assembly connectedto the three-positionswitch-disconnector viawelded bushings andconnecting bars

Arrangement of fuse as-sembly below the switch-gear vessel

Fuse can only be replacedif feeder is earthed

Option:Fuse tripped indicationfor remote electrical indi-cation with one normally-open contact (1NO)

Mode of operation

In the event that an HV HRCfuse link has tripped, theswitch is tripped via an arti-culation which is integratedinto the cover of the fusebox (see figure).

In the event that the fusetripping fails, e.g. if the fusehas been inserted incorrect-ly, the fuse box is protectedby thermal protection. Theoverpressure generated byoverheating trips the switchvia the diaphragm in thecover of the fuse box and viaan articulation. This breaksthe current before the fusebox incurs irreparabledamage.

The above thermal protec-tion works independently ofthe type and design of theHV HRC fuse used. Like thefuse itself, it is maintenance-free and independent of anyoutside climatic effects.

Furthermore, the SiemensHV HRC fuses release thestriker independently of thetemperature and trip thethree-position switch-dis-connector as early as in thefuse overload range. Imper-missible heating of the fusebox can be avoided in thisway.

Replacementof HV HRC fuse links

Isolating and earthing thetransformer feeder

Subsequent manual re-placement of the HV HRCfuse link after removingthe cable compartmentcover

HV HRC fuse assembly

Basic design

1 Bushing

2 Switchgear vessel

3 Sealing cover with seal

4 Tripping pin for spring-operated/stored-energy mechanism

5 Fuse box

6 HV HRC fuse link

7 Striker of the HV HRC fuse link andarticulation for tripping of thespring-operated/stored-energy mechanism

Schematic sketchesfor fuse tripping

Fuse linkin service condition

Fuse trippedby striker

Fuse tripped by overpressure,e.g. if HV HRC fuse linkhas been inserted incorrectly

HV HRC fuse assembly

)#


The opposite table shows therecommended HV HRC fuselinks 3GD (electrical data validfor ambient air temperatures ofup to 40 C) for fuse protectionof transformers.

Recommendation

The three-position switch-dis-connector in the transformerfeeder (transformer switch)was combined with SiemensHV HRC fuse links of type 3GDand tested in accordance withIEC 62 271-105.

Higher transformer ratings onrequest.

Standards

HV HRC fuse links mediumversion with strikeraccording to

IEC 60 282

VDE 0670-4 and 402

DIN 43 625main dimensions

Operatingvoltage

kV

Transformer Rated normal current of the HV HRC fuse

Rating SN

kVA

Relative impedancevoltage uk%

Ratedcurrent I1A

LowestvalueA

HighestvalueA

6.0 to 7.2 5075

100

444

4.87.29.6

161620

162025

125160200

444

12.015.419.2

253240

324050

250315400

444

24.030.338.4

505063

6380

100

500630

44

48.061.0

63100

100100

10 to 12 5075

100

444

2.94.35.8

101016

101016

125160200

444

7.29.3

11.5

162025

202532

250315400

444

14.518.323.1

253240

405063

500630800

1000

445 to 65 to 6

29.036.446.258.0

50636380

80100100100

13.2/13.8 5075

100

444

2.13.24.2

61010

61010

125160200

444

5.36.78.4

161616

162025

250315400

444

10.513.216.8

202532

253250

500630800

445 to 6

21.026.433.5

405050

506363

10001250

5 to 65 to 6

41.952.4

6380

80100

15 to 17.5 5075

100

444

1.92.93.9

61010

61010

125160200

444

4.86.27.7

101616

101625

250315400

444

9.712.215.5

202532

253240

500630800

445 to 6

19.324.330.9

324050

506350

10001250

5 to 65 to 6

38.548.2

6363

80100

22 to 24 5075

100

444

1.52.22.9

66

10

66

10

125160200

444

3.64.75.8

101016

101016

250315400

444

7.39.2

11.6

162020

202532

500630800

445 to 6

14.518.223.1

253232

405040

1000125016002000

5 to 65 to 65 to 65 to 6

29.036.046.558.0

405063

100

5063

100100

Allocation of three-position switch-disconnector with HV HRC fuses, transformer ratings

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Features

According to IEC 60 470 andVDE 0670-501 (for standardsrefer to page 44)

Application in hermeticallywelded switchgear vessel inconformity with the system

Climate-independent vacuuminterrupter poles in theSF6-filled switchgear vessel

Maintenance-free for indoorinstallation according toIEC 62 271-1 andVDE 0671-1

Individual secondary equip-ment

A metal bellows is used forgasketless separation of theSF6 insulation and the oper-ating mechanism as al-ready used with success forover 1 million vacuum inter-rupters

Magnet coil for operationlocated outside the switch-gear vessel

100,000 or 500,000 operat-ing cycles at rated normalcurrent

Short-circuit and overloadprotection in connection withmotors

In circuits subjected to short-circuit currents, HV HRC fuselinks protect switching deviceswithout short-circuit breakingcapacity (e.g. vacuum contac-tors).

The max. stress for HV HRCfuses arises during motorstarting (starting currents,starting times and startingfrequency).

Fuses must not operate or bepre-damaged during motorstarting.

The opposite table shows thepermissible motor starting cur-rents according to the startingtime and starting frequencyof downstream connected HVmotors with the associatedHV HRC fuses.

Vacuum contactor

Vacuum contactor(operating mechanism open)

1 Metal bellows

2 Pole support


4 Operating mechanism box with magnet coil

5 Base plate (welded into the switchgear vessel)

Section through the vacuum contactor

Motor protection table

Numberof startsper hour

Maximum permissible motor starting current in A

at rated normal current of fuse

40 A 63 A 100 A 125 A 160 A 250 A

HV motorswith starting timesup to 5 s

2 90 135 255 360 480 740

4 80 120 235 330 440 675

8 75 110 215 300 400 615

16 65 100 190 270 360 550


2 85 120 225 310 430 635

4 75 110 205 285 400 580

8 70 100 185 260 360 530

16 60 90 165 235 325 475


2 80 120 215 300 420 600

4 70 105 190 265 370 530

8 65 90 165 230 320 460

16 55 80 145 200 280 400

6 Fixed terminal

7 Pole support


9 Moving terminal

10 Switchgear vessel,SF6-insulated, with vacuuminterrupter

11 Metal bellows

12 Operating mechanism box(see figure above)

13 Operating kinematics

Vacuum contactor, motor protection

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Features

Single-pole, plug-in andbolted design

Consisting of round-barcopper, insulated by meansof silicone rubber

Busbar joints with cross andend adapters, insulated bymeans of silicone rubber

Field control by means ofelectrically conductive layerson the silicone-rubber insula-tion (both inside and outside)

Safe-to-touch by earthingthe external layers with theswitchgear vessel

Insensitive to pollution andcondensation

Safe-to-touch as a result ofuse of metallic covers

Switchgear extension or pa-nel replacement is possiblewithout gas work

Possible fittings

Current transformers

Voltage transformers

Surge arresters

Cables with Straight plug or T-plug

Fully-insulated bars(e.g. make Duresca)

Legend

1 Cap

2 Busbar insulation made ofsilicone rubber

3 Clamps

4 Busbar (round-bar copper)

5 End adapter or coupling endadapter

6 Connection bolt

7 Switchgear vessel

8 Metal cover of busbars

9 Cross adapter or coupling crossadapter

10 Bushing

11 Earthing connection

Section of busbar 1250 A (basic design)(panel width 600 mm)

Busbars (example)

Busbars 1250 A, plug-in type, fully insulated(as front view of three panels, without low-voltage compartments)

Busbars

)#

Section of busbar 1600 A, 2000 A or 2500 A (basic design)(panel width 600 mm)


Features

According to IEC 60 044-1and VDE 0414-1

Designed as ring-core currenttransformers, single-pole

Free of dielectrically stressedcast-resin parts (due todesign)

Insulation class E

Inductive type

Certifiable

Climate-independent

Secondary connection bymeans of a terminal strip inthe low-voltage compart-ment of the panel

Installation

Arranged outside the primaryenclosure (switchgear vessel)

Mounting locations

At the busbar (1)

At the panel connection (2)

Around the cable (3)

Current transformer types

Busbar current transformer (1): Inside diameter of

transformer56 mm / 1250 A and56 x 300 mm / > 1250 A

Max. usable height 170 mm

Feeder current transformer (2): Inside diameter of

transformer106 mm / 1250 A and106 x 240 mm / > 1250 A


Cable-type current trans-former (3) for shielded cables:

Inside diameter oftransformer 55 mm


Bus-type current transformer(4) underneath the panels(included in the scope ofsupply); on-site installation

1 Busbar current transformer

2 Feeder current transformerat the panel connection

3 Cable-type current transformer

4 Bus-type current transformer


Busbar current transformersExample 1250 A

Designation Type 4MC

Multiratio (secondary) 200 100 A to2500 1250 A

Core data according torated primary current:Measuring Ratingcore Class

Overcurrentfactor

max. 3 cores

2.5 VA to 30 VA0.2 to 1

FS 5, FS 10

Protection Ratingcore Class

Overcurrentfactor

2.5 VA to 30 VA5 P or 10 P

10 to 30

Permissible ambient airtemperature

max. 60 C

Insulation class E

Electrical data

Designation Type 4MC

Operating voltage max. 0.8 kV

Rated short-durationpower-frequency withstandvoltage (winding test)

3 kV

Rated frequency 50/60 Hz

Rated continuous thermalcurrent

max. 1.2 xrated current(primary)

Rated thermalshort-time withstand current,max. 3 s

max. 31.5 kA

Rated current dynamicprimary

secondary

unlimited40 A to2500 A1 A and 5 A

Front views:

Panel with busbar1250 A

630 A, 1000 A 2000 A, 2300 A and 2500 A Panel with busbarand 1250 A 2500 A

Current transformer installation (basic design)

Side views:


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Feeder voltage transformer (metal-coated)

Features

According to IEC 60 044-2 andVDE 0414-2

Single-pole, plug-in design

Connection system withplug-in contact

Inductive type

Safe-to-touch as a result ofuse of metallic covers

Certifiable

Climate-independent

Secondary connection bymeans of plugs inside thepanel

Cast-resin insulated

Arranged outside the primaryenclosure (switchgear vessel)

Mounting locations: At the busbar At the panel connection

Voltage transformer types

Busbar voltage transformer4MT2:

Pluggable in the cross adap-ters of the busbar 1250 Ausing additional adapters(> 1250 A on request)

No separate metering panelrequired

Suitable for 80 % of therated short-duration power-frequency withstand voltageat rated frequency

Repeat test at 80 % of therated short-duration power-frequency withstand voltagepossible with mountedvoltage transformer (also validfor higher insulation ratingsaccording to GOST and GBstandards)

Feeder voltage transformer4MT3 at the panel connec-tion:

Switchable through anSF6-insulated disconnectingfacility in the switchgearvessel

Switch positions: CLOSEDand Transformer bushingEARTHED

Operation of the disconnect-ing facility from outsidethrough a metal bellowswelded in the switchgearvessel

Voltage testing of switchgearand cables possible withmounted and earthed voltagetransformer


)#

Voltage transformer installation (basic design)

Front view: Side view:

Disconnecting facilityfor feeder voltage transformer(details Z)

OPEN and EARTHED

CLOSED

1 Busbar voltage transformer

2 Feeder voltage transformerat the panel connection

3 Operating lever fordisconnecting facility

4 Panel connection

5 Switchgear vessel wall(earthed)


Electrical data

Primary data

For types 4MT3 and 4MT2For operating voltages from 3.3 to 23 kV, rated voltage factor Un/8h = 1.9 ; Un /continuous = 1.2

Rated voltage

kV

Rated short-durationpower-frequencywithstand voltage

kV

Rated lightning impulsewithstand voltage

kV

Standard Operating voltage

kV

3.6 10 20 IEC 3.3/ 3

7.2 20 60 IEC 3.6/ 3; 4.8/ 3; 5.0/ 3;6.0/ 3; 6.3 / 3; 6.6/ 3

32 60 GOST 6.0/ 3; 6.3/ 3; 6.6/ 3

12 28 75 IEC 7.2/ 3; 10/ 3; 11/ 3

42 75 GOST 10/ 3; 11/ 3

42 75 GB 10/ 3; 11/ 3

17.5 38 95 IEC 13.2/ 3; 13.8/ 3; 15/ 3

24 50 125 IEC 17,5/ 3; 20/ 3; 23/ 3

Secondary data

Fortype

Operatingvoltage

V

Auxiliarywinding

V

Thermal limitcurrent (meas-uring winding)

A

Rated long-timecurrent,8 h

A

Rating at accuracy class

0.2 0.5 1 3

VA VA VA VA

4MT3 100/ 3;110/ 3;120/ 3

100/3;110/3;120/3

6 4 IEC

10,15, 20, 25,30

10, 15, 20, 25,30, 45, 50, 60,75, 90

10, 15, 20, 25,30, 45, 50, 60,75, 90, 100,120, 150, 180

10, 15, 20, 25,30, 45, 50, 60,75, 90, 100,120, 150, 180

GOST 32/60 kV

10, 15, 20, 25,30

10, 15, 20, 25,30, 45, 50, 60,75, 90

10, 15, 20, 25,30, 45, 50, 60,75, 90, 100,120, 150, 180

10, 15, 20, 25,30, 45, 50, 60,75, 90, 100,120, 150, 180

GOST 42/75 kV, GB 42/75 kV

10, 15, 20, 25 10, 15, 20, 25,30, 45, 50, 60,75

10, 15, 20, 25,30, 45, 50, 60,75, 90, 100,120, 150

10, 15, 20, 25,30, 45, 50, 60,75, 90, 100,120, 150

4MT2 100/ 3;110/ 3;120/ 3

100/3;110/3;120/3

8 6 IEC

5, 10,15, 20,25

10, 15, 20, 25,30, 45

10, 15, 20, 25,30, 45, 50, 60,75

10, 15, 20, 25,30, 45, 50, 60,75

GOST 32/60 kV

5 10, 15 10, 15, 20, 25,30

10, 15, 20, 25,30

GOST 42/75 kV, GB 42/75 kV

5, 10 10, 15, 20, 25,30

10, 15, 20, 25,30, 45, 50, 60

10, 15, 20, 25,30, 45, 50, 60

GOST: Russian standardGB: Chinese standard


)#


Features

Bushings with outside cone

With bolted contact (M16) asinterface type C accordingto EN 50 180 / EN 50 181

Cable connection height:702 mm (for switch-discon-nector panels and contactorpanels with HV HRC fuses:450 mm)

Max. connection depth:584 mm or 732 mm withstandard cable compartmentcover, 752 mm with deepercable compartment cover

With cable bracket, e.g. typeC40 accord. to DIN EN 50 024

Option: Access to the cablecompartment only if thefeeder has been isolated andearthed

For thermoplastic-insulatedcables

For cable T-plugs or cableelbow plugs with bolted con-tact

For connection cross-sectionsup to 630 mm2

Cable routing downwards,cable connection from thefront

Option: Cable routing to thetop at the rear, cable connec-tion from the rear (only forcircuit-breaker panel 1250 A)

For rated normal currentsup to 2500 A

Cable plugs, cable sealingends and cable clamps arenot included in the scope ofsupply

Surge arresters

Can be plugged into thecable T-plug

Surge arresters are recom-mended if, at the same time,

The cable system is directlyconnected to the overheadline,

The protective range of thearrester at the terminal towerof the overhead line does notcover the switchgear

Surge limiters

Can be plugged into thecable T-plug

Surge limiters are recom-mended if motors withstarting currents < 600 A areconnected

Legend

1 Cable T-plug

2 Coupling T-plug

3 Screwed couplinginsert

* Cable connection height of450 mm for switch-discon-nector panels and contactorpanels with HV HRC fuses

Panel connection

)#

Panel width 600 mm Panel width 1200 mm

Connection with 2 cables per phaseconnection with 4 cables per phase

Connection with 3 cables per phaseconnection with 6 cables per phase

Cable compartment

Connectable cables

Connection with 1 cable per phaseconnection with 2 cables per phase


Installation possibilities for cable connections and surge arresters

Number ofcables perpanel andphase

Make Conductorcross-section 1)

mm2

Insulation Cable T-plugs

bolted12 kV24 kV

Coupling inserts/couplingplugs

bolted12 kV24 kV

Surgearresterswith coupling insertsArresters Coupling inserts

additionally

Circuit-breaker panel 630 A, 1000 A Switch-disconnector panel 630 A Disconnector panel 1000 A Ring-main panel 630 A Contactor panel Circuit-breaker panel with top-rear cable connection 1250 A 2)

1 Euromold 35 to 300 EPDM 1x 400TB/G1x K400TB/G

400PB-5(10)-SA-xxx

35 to 300 EPDM 1x 430TB-630A1x K430TB-630A

300SA-5(10)SA

400 to 630 EPDM 1x 440TB/G1x K440TB/G

400PB-5(10)-SA-xxx

Sdkabel 50 to 30025 to 240

Silicone 1x SET 121x SET 24

MUT 23

400 to 500300 to 500

Silicone 1x SEHDT 131x SEHDT 23

MUT 23

nkt cables 25 to300 Silicone 1x CB 12-6301x CB 24-630

CSA 12-xCSA 24-x

400 to 630 Silicone 1x CB 36-630(1250)1x CB 36-630(1250)

CSA 12-xCSA 24-x

Tyco Electronics 25 to 300 Silicone 1x RSTI-L56xx1x RSTI-L56xx

RSTI-CC-L56SAxxxxRSTI-CC-66SAxxxx

25 to 300 Silicone 1x RSTI-58xx1x RSTI-58xx

RSTI-CC-58SAxxxx

400 to 630 Silicone 1x RSTI-36Lxx1x RSTI-56Lxx

RSTI-L56SAxxxxRSTI-66SAxxxx

RSTI-66CP-M16RSTI-66CP-M16

2 3) Euromold 35 to 300 EPDM 2x 400TB/G2x K400TB/G

1x 400CP1x K400CP


1x 300PB-630A1x K300PB-630A


1x 440CP1x K440CP



1x SEHDK 13.11x SEHDK 23.1

50 to 30025 to 240


1x KU 23.21x KU 23.2

400 to 500300 to 500


1x KU 231x KU 23

nkt cables 25 to 300 Silicone 1x CB 12-6301x CB 24-630

1x CC 12-6301x CC 24-630

CSA 12-xCSA 24-x

25 to 300 Silicone 2x CB 12-6302x CB 24-630

1x CP 630-C1x CP 630-C

CSA 12-xCSA 24-x


1x CC 36-630(1250)1x CC 36-630(1250)

CSA 12-xCSA 24-x


1x RSTI-CC-L56xx1x RSTI-CC-L56xx



1x RSTI-CC-58xx1x RSTI-CC-58xx

RSTI-CC-58SAxxxx


1x RSTI-66CP-M161x RSTI-66CP-M16



)#

1) Observe the actual current and short-circuit current carrying capacity of the cables and sealing ends.

2) For the 1250 A version, only sealing ends with silver-plated or nickel-plated cable lugs are permissible.

3) The use of arresters is not possible for cable connection panels 1250 A with top-rear cable connection.



)#



mm2


bolted12 kV24 kV


bolted12 kV24 kV


additionally

Circuit-breaker panel 1250 A 2) Disconnector panel 1250 A 2)

1 Same combination options as in the previous table


1x 400CP1x K400CP

400PB-5(10)-SA-xxx


1x 300PB-630A1x K300PB-630A

300SA-5(10)SA


1x 440CP1x K440CP

400PB-5(10)-SA-xxx




50 to 30025 to 240


1x KU 23.21x KU 23.2

400 to 500300 to 500


1x KU 231x KU 23


1x CC 12-6301x CC 24-630

CSA 12-xCSA 24-x


1x CP 630-C1x CP 630-C

CSA 12-xCSA 24-x


1x CC 36-630(1250)1x CC 36-630(1250)

CSA 12-xCSA 24-x






RSTI-CC-58SAxxxx





3 Euromold 35 to 300 3) EPDM 3x 400TB/G3x K400TB/G

2x 400CP2x K400CP


2x 300PB-630A2x K300PB-630A

400 to 630 3) EPDM 3x 440TB/G3x K440TB/G

2x 440CP2x K440CP


2x CC 12-6302x CC 24-630

CSA 12-xCSA 24-x


2x CC 36-630(1250)2x CC 36-630(1250)

CSA 12-xCSA 24-x






RSTI-CC-58SAxxxx






2) For the 1250 A version, only sealing ends with silver-plated or nickel-plated cable lugs are permissible.

3) Only possible with deeper cable compartment cover.



)#



mm2


bolted12 kV24 kV


bolted12 kV24 kV

Surge arresters with coupling insertsArresters Coupling inserts

additionally

Circuit-breaker panel and disconnector panel 2000 A, 2300 A, 2500 A 2)


400PB-5(10)-SA-xxx


300SA-5(10)SA


400PB-5(10)-SA-xxx



MUT 23

400 to 500300 to 500


MUT 23


CSA 12-xCSA 24-x


CSA 12-xCSA 24-x




RSTI-CC-58SAxxxx





2x 400CP2x K400CP

400PB-5(10)-SA-xxx


2x 300PB-630A2x K300PB-630A

300SA-5(10)SA


2x 440CP2x K440CP

400PB-5(10)-SA-xxx




MUT 23

50 to 30025 to 240


2x KU 23.22x KU 23.2

MUT 23

400 to 500300 to 500


2x KU 232x KU 23

MUT 23


2x CC 12-6302x CC 24-630

CSA 12-xCSA 24-x


2x CP 630-C2x CP 630-C

CSA 12-xCSA 24-x


2x CC 36-630(1250)2x CC 36-630(1250)

CSA 12-xCSA 24-x






RSTI-CC-58SAxxxx






2) For the 2000 A, 2300 A and 2500 A versions, only sealing ends with silver-plated or nickel-plated cable lugs are permissible.



)#



mm2


bolted12 kV24 kV


bolted12 kV24 kV


additionally

Circuit-breaker panel and disconnector panel 2000 A, 2300 A, 2500 A 2)

6 Euromold 35 to 300 3) EPDM 6x 400TB/G6x K400TB/G

4x 400CP4x K400CP


4x 300PB-630A4x K300PB-630A

400 to 630 3) EPDM 6x 440TB/G6x K440TB/G

4x 440CP4x K440CP


4x CC 12-6304x CC 24-630

CSA 12-xCSA 24-x


4x CC 36-630(1250)4x CC 36-630(1250)

CSA 12-xCSA 24-x






RSTI-CC-58SAxxxx






2) For the 2000 A, 2300 A and 2500 A versions, only sealing ends with silver-plated or nickel-plated cable lugs are permissible.

3) Only possible with deeper cable compartment cover.


Panel connection (commercially available cable sealing ends)

Cable type Cable sealing ends Comment

Make Type Cross-sectionmm2

Thermoplastic insulated cables 12 kV according to IEC 60502-2 and VDE 0276-620

1-core cable, PE and XLPE-insulated

N2YSY (Cu) and N2XSY (Cu)

or

NA2YSY (AI) and NA2XSY (AI)

Euromold 400 TB/G 35 to 300 EPDM with semi-conductive layer

430TB-630A 35 to 300 EPDM with semi-conductive layer

440 TB/G 400 to 630 EPDM with semi-conductive layer

nkt cables CB 12-630 25 to 300 Silicone with semi-conductive layer(optionally with metal housing)

CB 36-630(1250) 400 to 630 Silicone with semi-conductive layer

Sdkabel SET 12 50 to 300 Silicone with semi-conductive layer(optionally with metal housing)

SEHDT 13 400 to 500 Silicone with semi-conductive layer(optionally with metal housing)

Tyco Electronics RSTI-L56xx 25 to 300 Silicone with semi-conductive layer, with capacitivemeasuring point

RSTI-58xx 25 to 300 Silicone with semi-conductive layer, with capacitivemeasuring point

RSTI-36Lxx 400 to 630 Silicone with semi-conductive layer, with capacitivemeasuring point

Thermoplastic insulated cables 15/17.5/24 kV according to IEC 60502-2 and VDE 0276-620

1-core cable, PE and XLPE-insulated

N2YSY (Cu) and N2XSY (Cu)

or

NA2YSY (AI) and NA2XSY (AI)

Euromold K400TB/G 35 to 300 EPDM with semi-conductive layer

K430TB-630A 35 to 300 EPDM with semi-conductive layer

K440TB/G 400 to 630 EPDM with semi-conductive layer

nkt cables CB 24-630 25 to 300 Silicone with semi-conductive layer(optionally with metal housing)

CB 36-630(1250) 400 to 630 Silicone with semi-conductive layer

Sdkabel SET 24 50 to 300 Silicone with semi-conductive layer(optionally with metal housing)

SEHDT 23 400 to 500 Silicone with semi-conductive layer(optionally with metal housing)

Tyco Electronics RSTI-L56xx 25 to 300 Silicone with semi-conductive layer, with capacitivemeasuring point

RSTI-58xx 25 to 300 Silicone with semi-conductive layer, with capacitivemeasuring point

RSTI-56Lxx 400 to 630 Silicone with semi-conductive layer, with capacitivemeasuring point

)#

Paper-insulated belted cables 12 kV according to GOST 18410-73

3-core cable, paper-insulated

ASB and ASBL

nkt cables CB 24-630 25 to 240 Silicone with semi-conductive layer,in combination with transition sealing end type SEV 10

Tyco Electronics RSTI-58xx 25 to 300 Silicone with semi-conductive layer, with capacitivemeasuring point, in combination with transition sealingend type SMOE

Paper-insulated belted cables 12 kV according to IEC 60055 and VDE 0255

3-core cable, paper-insulated

NKBA (Cu), NKBY (Cu),NKRA (Cu) and NKFA (Cu)

or

NAKBA (AI), NAKBY (AI),NAKRA (AI) and NAKFA (AI)

nkt cables CB 24-630 25 to 240 Silicone with semi-conductive layer,in combination with transition sealing end type SEV 10

Tyco Electronics RSTI-58xx 25 to 300 Silicone with semi-conductive layer, with capacitivemeasuring point, in combination with transition sealingend type SMOE


Voltage detecting systemsacc. to IEC 61243-5 orVDE 0682-415

To verify safe isolation fromsupply

Detecting systems LRM system with plug-in

indicator LRM system with integrated

indicator type VOIS+, VOIS R+ LRM system with integrated

indicator, with integratedrepeat test of the interface,with integrated function testtype CAPDIS-S1+

LRM system with integratedindicator, with integratedrepeat test of the interface,with integrated function test,with integrated signallingrelay type CAPDIS-S2+

LRM system

Verification of safe isolationfrom supply phase by phasethrough insertion in eachsocket pair

Indicator suitable forcontinuous operation

Safe-to-touch

Routine-tested

Measuring system and volt-age indicator can be tested

Voltage indicator flasheswhen high voltage is present

VOIS+, VOIS R+

Integrated display, withoutauxiliary power

With indication A1 to A3,(see legend)

Maintenance-free, repeat testrequired

With integrated three-phasetest socket for phase compa-rison (also suitable for plug-involtage indicator)

Degree of protection IP 67,temperature range -25 C to+55 C

With integrated signallingrelays (only VOIS R+)

M1: Voltage present at onephase L1, L2 or L3 as aminimum

M2: Voltage not presentat L1, L2 and L3

Voltage indicationvia capacitive voltage divider (principle)

C1 Capacity integrated into bushing

C2 Capacity of the connection leads andof the voltage indicator to earth

R-HA

40-1

03ep

sR-

HA40

-102

aep

s

Plug-in voltage indicatorper phase atthe panel front

Integrated voltage detecting systemCAPDIS-S1+, -S2+

Indicators and detecting systems

R-HA

40-1

04ep

s

Integrated voltage indicatorVOIS+, VOIS R+

A0

A1

A2

A3

A4

A5

A6

A0 CAPDIS-S2+: Operating voltagenot present

A1 Operating voltage present

A2 Operating voltage not present For CAPDIS-S2+:

Auxiliary power not present

A3 Failure in phase L1, operating voltageat L2 and L3 (for CAPDIS-Sx+ alsoearth-fault indication)

A4 Voltage (not operating voltage)present

A5 Indication Device-Function-Testpassed

A6 Indication ERROR, e.g. in case ofmissing auxiliary voltage(see: error indication M4)

CAPDIS-Sx+

Common features

Maintenance-free

Integrated display, withoutauxiliary power

Integrated repeat test of theinterfaces (self-monitoring)

With integrated function test(without auxiliary power) bypressing the Device-Func-tion-Test pushbutton

With integrated three-phasetest socket for phase compa-rison (also suitable for plug-involtage indicator)

Degree of protection IP 54,temperature range 25 C to+55 C

With circuit capacity

With ready-for-servicemonitoring (external auxiliarypower required)

With integrated signalling re-lay for signalling M1 to M4(auxiliary power required):

M1: Voltage present atphases L1, L2, L3

M2: Voltage not present atL1, L2 and L3 (= active zeroindication)

M3: Earth fault or voltagefailure, e.g. in one phase

M4: External auxiliarypower missing (operatingvoltage present or not)

Features of CAPDIS-S1+

Without auxiliary power

With indication A1 to A5(see legend)

Without ready-for-servicemonitoring

Without signalling relay (thuswithout auxiliary contacts)

Features of CAPDIS-S2+

With indication A0 to A6(see legend)

Only by pressing theDevice-Function-Testpushbutton: ERROR indica-tion (A6), e.g. in case ofmissing auxiliary voltage

ULE = UN / 3 during rated operationin the three-phase system

U2 = UA= Voltage at the capacitive interfaceof the switchgear or at the voltage indicator

Indicating andmeasuring equipment

)#

Symbols shown

VOIS+,VOISR+ CAPDIS-S1+ CAPDIS-S2+

LRM systemplugged in

CAPDIS/VOISinstalled


Verification of correctterminal-phase connections

Verification of correct termi-nal-phase connections possi-ble by means of a phasecomparison test unit(can be ordered separately)

Safe-to-touch handling of thephase comparison test unitby inserting it into the capaci-tive taps (socket pairs) of theswitchgear

Phase comparison test units

R-HA

40-0

59ep

s

Phase comparison test unitMake: Pfisterer, type EPV

R-HA

40-0

89ep

s

Phase comparison test unitMake: Horstmann, type ORION 3.0as combined test unit for: Phase comparison Interface testing at switchgear Voltage detection for LRM system

Phase comparison test unitMake: Kries, type CAP-Phaseas combined test unit (HR and LRM)for: Voltage detection Repeat test Phase comparison Phase sequence test Self-testThe unit does not require a battery

R-HA

35-1

24.e

ps

or other makes

Indicating andmeasuring equipment

)#


Gasmonitoring

R-HA

35-1

05ep

s

Ready-for-service indicator

Features

Self-monitoring; easy to read

Independent of temperatureand pressure variations

Independent of site altitude

Only responds to changes ingas density

Option: Alarm switch 1NO +1NC for remote electrical in-dication

Mode of operation

For the ready-for-service indi-cator, a gas-tight measurementbox is installed inside theswitchgear vessel.

A coupling magnet, which isfitted to the bottom end of themeasurement box, transmits itsposition to an outside armat

Documents

CATALOGO NX PLUS C.pdf