Operation and Maintenance of Switchgear

Effective June 2011Supersedes IB02102001E 3/06Instruction Booklet IB02102001E

Instructions for Installation, Operation, and Maintenance of Type MVS, MEB, and MSB Metal Enclosed Switchgear Assemblies: 4.76 kV or 15.0 kV class

ContentsDescription Page

1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . 22. Receiving,Handling,andStorage. . . . . . . . . . 43. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 InspectionBeforeStart-up...............115. Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 126. Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . 127. DuplexConfiguration. . . . . . . . . . . . . . . . . . . 138. MSBandMEBSwitchgear. . . . . . . . . . . . . . 149. HardwareTightnessInformation. . . . . . . . . . 1510.RenewalPartsInformation . . . . . . . . . . . . . . 15

IndoorMVSSwitchgearAssembly

OutdoorMVSSwitchgearAssembly

2InstructionBookletIB02102001EEffective June 2011

Instructions for Installation, Operation, and Maintenance of Type MVS, MEB, and MSB Metal Enclosed Switchgear

Assemblies: 4.76 kV or 15.0 kV class

EATON CORPORATION www.eaton.com

Section 1: IntroductionReadandunderstandtheseinstructionsbeforeattemptinganyinstallation,operation,ormaintenanceofthisswitchgear.

1.1Purpose

Thisinstructionbookisexpresslyintendedtocovertheinstallation,operation,andmaintenanceofMediumVoltageSwitch(typeMVS)metalenclosedswitchgear,MetalEnclosedSwitchandBreaker(typeMSB)metalenclosedswitchgear,andMetalEnclosedBreaker(typeMEB)metalencloseswitchgear.Itdoesnotpurporttocoverallpossiblecontingencies,variations,anddetailsthatmayarisedur-inginstallation,operation,ormaintenanceofthisequipment.

Iffurtherinformationisdesiredbythepurchaserregardingthispar-ticularinstallationorapplicationinformation,contactthelocalEatonElectrical,Inc.salesoffice,seetheappropriatesectionofEatonElectrical,Inc.ConsultingApplicationGuide,andreviewtheappropri-ateindustrystandards.

1.2DescriptionandApplication

ThetypeMVSmetalenclosedswitchgearassembliesconsistsofoneormoreverticalsectionsofmetalenclosedswitchgearasdefinedinindustrystandardAmericanNationalStandardsInstitute/InstituteofElectricalandElectronicEngineers(ANSI/IEEE)C37.20.3.Typically,eachverticalsectioncontainsanairinsulated,three-pole,gang-operated,quick-make,quick-break,loadinterrupterswitch.Itcanbeappliedincombinationwithpowerfusesoravacuumcircuitbreaker(typeMSBswitchgear)andmanyotherprotectivedevicestoprovidesafe,economicalswitchingandovercurrentprotectionwhereinfrequentdisconnectingmeansisrequired.Also,adrawout-mountedcircuitbreakercanbeprovidedwithouttheloadinterrupterswitchintheverticalsection(MEBtypeswitchgear).

1.3RevisionLevel

Revisionlevelis2.

1.4DocumentationReferences

Forfurtherinformationoninstallationandapplication,refertotheapplicabledescriptivebulletins,publications,and/orindustrystan-dards.

DownloadEatonElectrical,Inc.informationfromwww.eatonelectri-cal.com.

1.5EatonElectrical,Inc.ContactInformation

ForthelocationofthenearestEatonElectrical,Inc.salesofficeordistributor,calltollfree1-800-525-2000orlogontowww.eatonelec-trical.com.

EatonElectrical,Inc.ElectricalServicesandSystems(EESS)canbereachedat1-800-498-2678.

1.6Terminology

MetalEnclosedLoadInterrupterSwitchgear:ThisisanassemblyofmetalverticalsectionsasdefinedinindustrystandardAmericanNationalStandardsInstitute/InstituteofElectricalandElectronicEngineers(ANSI/IEEE)C37.20.3.

LoadInterrupterSwitch:Thebasicswitchingandfault-closingdeviceusedinmetalenclosedloadinterrupterswitchgear.

Fuse:Adeviceusedinconjunctionwithaloadinterrupterswitchtoprovideovercurrentandshort-circuitprotection.

CircuitBreaker:Adeviceusedinmetal-enclosedswitchgearassem-bliestoprovideswitchingandovercurrentprotectioninconjunctionwithassociatedprotectiveandcontroldevices.

1.7SafetyPrecautions

WARNINGONLY QUALIFIED ELECTRICAL WORKERS WITH TRAINING AND EXPERI-ENCE ON HIGH VOLTAGE CIRCUITS SHOULD BE PERMITTED TO WORK ON THIS EQUIPMENT. THEY SHOULD BE FAMILIAR WITH THE WORK TO BE PERFORMED, THE SAFETY EQUIPMENT REQUIRED, AND HAZARDS INVOLVED.

1. Readandunderstandtheseinstructionsbeforeattemptinganyassembly,operation,ormaintenanceofaMVS,MSB,orMEBswitchgearassembly.

2. DisconnectalllowvoltageandmediumvoltagepowersourcesbeforeworkingontheequipmentperOccupationalSafetyandHealthAct(OSHA)andlocallockoutandtagoutprocedures.Verifyvoltageshavebeenremoved,bothgroundloadandlinesideconnections.ObservetheNationalFireProtectionAssociations(NFPA)Publication#70thatiscommonlyknownastheNationalElectricalCode(NEC),OSHA,andlocalproceduresandstandards.Thisincludesvisualinspectionswhiletheverticalsectiondoorisopen,makinganyadjustmentsinsideoroutsidetheswitchgearverticalsection,performingmaintenance,orinstallingreplacementparts.

3. TheverticalsectiondoorcannotbeopenedwiththeswitchintheCLOSEDposition.Inaddition,theswitchcannotbeclosedwiththeverticalsectiondooropen.

4. Beforeopeningthedooroftheverticalsection,lookthroughthewindowonthedoortoensurethatallthreemainbladesandflickerbladesareOPEN.Ifnecessary,useanadditionalsuitablelightsource.

WARNINGDEFEATING OR DISENGAGING SAFETY INTERLOCKS ON A MVS OR MVS2 SWITCH THAT IS PROPERLY INSTALLED IN A MVS SWITCHGEAR ASSEMBLY AND CONNECTED TO A POWER SOURCE MAY RESULT IN PROPERTY DAMAGE, BODILY INJURY, OR DEATH. DO NOT DEFEAT OR DISENGAGE ANY SAFETY INTERLOCKS WHEN THE SWITCHGEAR IS IN SERVICE.

Beforeenergizingtheswitchgearassembly:

5. MakesuretheMVSswitchgearassemblyissecurelyfastenedtoasurfacethatislevelwithin0.0125in.in36in.(0.318mmin914.4mm)fronttorear,lefttoright,anddiagonally.

6. Alwaysbesurethatallhardwareisinplaceandsecuredbytight-eningorusingsafetyfastenersbeforeputtinganMVS2switchintooperation.SeeSection7.

7. Confirmthatallarcchutesandbarriersareinstalled.

8. Confirmthatnotoolsorotherobjectsareleftinsidetheverticalsection.

9. Confirmthatalldevices,doors,andcoversareinplace.




1.8SwitchgearIdentification

AnameplateislocatedinsidethesmallaccessdoorofeachtypeMVSswitchgearverticalsection(seeFigure1).ContainedonthisnameplatearetheEatonElectrical,Inc.masterpartslistnumberandallthenecessaryswitchgearratings.ThisinformationshouldbegiventotheEatonElectrical,Inc.salesofficeifaquestionshouldariseconcerningtheswitchgearorifrenewalpartsarerequired.ThisinformationissufficientforEatonElectrical,Inc.tofindthemanufacturinginformationfortheswitchgear.

Figure1.TypicalNameplate.

WARNINGEXCEEDING NAMEPLATE RATINGS OF MVS SWITCHGEAR COULD CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH. MVS SWITCHGEAR MUST BE OPERATED WITHIN ITS NAMEPLATE RAT-INGS.

1.9SafetyFeatures

TypeMVSloadinterrupterswitchgearhasseveralbuilt-infeaturestoreducehazardsandtoprovideproperoperatingsequences.

1. Adoorinterlockpreventsopeningtheenclosuresfrontdoorwhiletheloadinterrupterswitchisintheclosedposition.

2. Aswitchinterlockpreventsmanualoperationoftheswitchsoperatingmechanismwiththedooropen.

3. Aviewingwindowisprovidedtovisuallyverifytheswitchcon-tactposition.

4. Facilitiesareprovidedforpadlockingtheswitchintheopenorclosedposition.

5. Facilitiesareprovidedforpadlockingthedoorhandlesclosed.

6. Mechanicalindicatorsshowwhethertheswitchmechanismisopenorclosed.

7. Keyinterlocks,whenprovided,forceasequenceofoperation.

symmetrical amperes; volts maximum.

ratings when fuses are mounted in this vertical section.

See separate label inside for fuse continuous current

capable of delivering not more than RMS

This switchgear vertical section is suitable for use on a circuit

of industry standards IEEE C37.20.3 and ANSI C37.57

Type Switchgear Assemblies meet the requirements

Short Time (2 Sec., Sym)

Momentary RMS Asym

Continuous:

Maximum Continuous

Master P.L.:

GO & It:

Section No. Of

Date:

3 Phase 60 Hz.

kV BIL:Operating Volts:

Mfd. At:

Encl. Category:

Enclosure Type:

1A33788H01

Type:

Instructions

WARNINGOPERATING A MVS OR MVS2 SWITCH WITH A KEY INTERLOCK BOLT EXTENDED WILL RESULT IN EQUIPMENT DAMAGE AND MAY ALSO EXPOSE A PERSON TO BODILY INJURY OR DEATH. THE KEY MUST BE INSERTED INTO THE INTERLOCK AND ROTATED TO RETRACT THE LOCKING BOLT BEFORE OPERATING A MVS OR MVS2 SWITCH.

1.10RatingsandStandards

Table1. MVS/MSB/MEBSwitchgearVoltageandFrequencyRatings,RMSValues.Description 4.76 kV Class 15 kV Class

Rated Maximum Design Voltage 4.76 kV 15 kV

Impulse Withstand Voltage, BIL* 60 kV 95 kV

Low Frequency Withstand Voltage 19 kV 36 kV

Rated Frequency 60 Hz 60 Hz

*Basic Impulse Level (BIL)

Table2. MVS/MSB/MEBSwitchgearMainBusCurrentRatingforShort-circuitCapabilityof63.8kAPeakfor10Cycles.For the Main Bus Continuous Current Rating 800 A 1200 A

Related Capability Rating Rating

Momentary Current Rating, kA Peak 63.8 63.8

Short Time Current rating, 2 Seconds, kA Symmetrical 25 25

Table3. MVS/MSB/MEBSwitchgearMainBusCurrentRatingforShort-circuitCapabilityof97kAPeakfor10Cycles.For the Main Bus Continuous Current Rating 800 A 1200 A


Momentary Current Rating, kA Peak 97 97


Table4. MVS/MSB/MEBSwitchgearMainBusCurrentRatingforShort-circuitCapabilityof127.5kAPeakfor10Cycles.For the Main Bus Continuous Current Rating 800 A 1200 A


Momentary Current Rating, kA Peak 127.5 127.5


Table5. MVS/MSB/MEBSwitchgearMainBusCurrentRatingforShort-circuitCapabilityof160.6kAPeakfor10Cycles.For the Main Bus Continuous Current Rating 1200 A

Related Capability Rating

Momentary Current Rating, kA Peak 160.6

Short Time Current rating, 2 Seconds, kA Symmetrical 63

Table6. MVS2SwitchStandards.Standards Document

Underwriters Laboratory (UL) or Canadian Standards Association (CSA) Listing to:

ANSI/IEEE C37.20.3ANSI C37.57

CSA Listing Only to: CAN/CSA C22.2 No 31





Section 2: Receiving, Handling, and Storage2.1Receiving

Avisualinspection-insideandout-shouldbeperformedimmedi-atelyuponreceiptoftheswitchgearassemblybeforeremovingitfromthetruck.Shippingpapersshouldbecheckedtobesureallboxesorotheraccompanyingpieceshavebeenreceived.Ifanydamageorshortagesareevident,aclaimshouldbefiledatoncewiththecarrierandthenearestEatonElectrical,Inc.officenotified.

Thedatanameplateforeachswitchgearassemblyislocatedinsidethemechanismaccessdoor.ThemasterpartslistnumberislocatedonthisnameplateandshouldbegiventotheEatonElectrical,Inc.representativewheneveridentificationoftheassemblyisrequired.

2.2Handling

RemovableliftinglugsareprovidedonthetopoftheMVSstructureforinsertionofhookstoliftthecompletestructure.ThisistheonlyrecommendedmethodofmovingtheMVSstructure.Extremecareshouldbeusednottodamageordeformtheswitchgearifothermovingmethodsareemployed.

2.3Storage

Ifitisnecessarytostoretheequipmentbeforeinstallation,keepitinaclean,drylocationwithampleaircirculationandheattopreventcondensation.Likeallelectricalapparatus,theseunitscontaininsu-lationthatmustbeprotectedagainstdirtandmoisture.

Outdoorassembliesmaybestoredoutsideonlyiftheroofcapsareinstalled,thespaceheatersenergized,andanyopeningsareenclosed.

Section 3: InstallationRefertoshippinglistforlocationofthebus,hardware,andallotherjoiningandinstallationmaterial.

3.1JoiningTypeMVSEnclosures

3.1.1 Access to MVS Switchgear Vertical Sections Containing Switches

EachMVS2switchisshippedfromthefactoryintheclosedpositiontomaintainalignmentduringshippingandhandling.Thesafetyinter-lockingpreventsopeningofthedooroftheverticalsectionwhentheswitchisclosed.

Inordertogainaccesstotheinterior,besuretheswitchgearisonatrueandlevelsurface(definedas0.0125in.in36in.[0.318mmin914.4mm]fronttorear,lefttoright,anddiagonallybeneaththesup-portingframeworkoftheswitchgearassembly).ToopenamanuallyoperatedMVS2switchinserttheoperatinghandleandpushdown.Whentheswitchopensthedoormaybeopened.

WhenhandlingMVSswitchgear,besuretheswitchesareintheclosedposition.DonotoperateMVS2switchesunlesstheswitch-gearassemblyissettingonatrueandlevelsurface.Trueandlevelisdefinedaslevelwithin0.0125in.in36in.(0.318mmin914.4mm)fronttorear,lefttoright,anddiagonally,measuredatanypointbeneaththesupportingframeworkoftheMVSswitchgear.

3.1.2 Identification of Shipping Splits

Refertothefrontviewontheswitchgearassemblydrawingsuppliedwiththeswitchgear.Beneaththisview,shippingsplitswillbeidenti-fiedinrelationtogroupnumbersforeachverticalsection.Normally,shippingsectionswillnotexceed92in.(2336.8mm)inwidth.

3.1.3ProceduresforJoiningMVSEnclosuresatShippingSplits

Duringthefollowingsteps,pleaserefertoFigure2.

Figure2.JoiningtheMVSEnclosures.

Cutout

MountingBolts

Vertical Section to Left Vertical Section to Right

L ofBus BarC




Step1: Removetheeight(8)0.375-16in.boltsfromeachsidesheet.

Step2: Positiontheshippingsectionsnexttoeachother.Thefour(4)holeswillmatchholesinadjacentsidesheets.Insomecases,itmaybenecessarytouseofanaligningtoolsuchasapunchtomovethestructuresintoalignment.

Step3: Boltthesidesheetstogetherusingtheeight(8)boltsremovedfromonesidesheetinStep1.

Step4: Makethemainandgroundbusconnectionsusingthelinksandhardwarefurnished.Thebusbaristinorsilver-plated.Toinsureaproperelectricalconnection,careshouldbetakentoprotecttheplatingfromdamage.DONOTusejointcompound.

CAUTIONCLEANING BUS JOINTS WITH ABRASIVE OR CHEMICAL CLEANSERS MAY REMOVE PLATING, WHICH MAY CAUSE JOINT OVERHEATING. TO CLEAN THE SURFACES, WIPE THEM WITH CLEAN, DRY CLOTH.

Step5: Boltedconnectionsshouldbetightenedtothetorqueval-uesgiveninSection9.

3.2InstallationofRoofCapsonOutdoorUnits.

RoofcapsarenecessarytocompletetheroofofalloutdoorMVSswitchgearassemblies.Thosenotfactoryinstalledareshippedontheswitchgearinashippingpositionorcartonsthatareshippedseparately.

Thefollowingprocedureandaccompanyingfiguresdetailtheworktobedonetoinstalleachcap.

Step1: RemovetheboltssecuringtheliftinglugstotheMVSswitchgearassembly.Removetheliftinglugsandreinstallthebolts.

Step2: Placearoofcap(intermediateorend)inposition.Installthehardwareonverticalendsurfacestoholdtheroofcapinplace.

Figure3.InstallationofRoofCapsonOutdoorUnits.

Step3: Continuethisprocedureuntilallroofcapshavebeeninstalled.

3.3ConnectionofTypeMVSSwitchgeartotheTransformer

3.3.1 Physical Connection

3.3.1.1 Indoor Assemblies, Dry Type, Cast Coil Type, or Liquid Filled Type Transformers

HolesarepredrilledinthesideoftheMVSstructuretomatchtheholesprovidedinthetransformercase.HardwareisprovidedintheMVSswitchgearwhereitwillbeconnectedtothetransformer.Removethishardwareandretainitforfasteningtheswitchgeartothetransformer.

MovetheMVSswitchgeartomatchtheholesonthesidethatwillfacethetransformertothematchingholesinthetransformercase.Minormisalignmentmaybecorrectedwithataperedguidingrodofsomekind.Insertthehardwareandtighten.UseextremecautioninmovingtheMVSswitchgeartopreventdamage.

3.3.1.2 Outdoor Throat Connection, Liquid Filled Transformers

Duringthefollowingsteps,pleaserefertoFigure4.

Step1: RemovethesealingringflangefromMVSswitchgearthroatandsetitaside.

Step2: Theswitchgearandtransformershouldbebroughttogeth-ertogiveaspacingofapproximately0.5in.(12.7mm)betweenthroatflanges.

Step3: ApplythedoubleadhesivetapesuppliedwithMVSswitch-geartooutsidesurfacesofbothflanges.

Step4: PressfeltsuppliedwithMVSswitchgearintoplaceonadhesivetape.

Step5: ReinstallsealingringremovedinStep1.

3.3.2MediumVoltageElectricalConnections

3.3.2.1 Connection by Cables Supplied with Type MVS Switchgear or Transformer

ThesuppliedcablesareNOTfactorypre-cuttotheproperlength.TheinstallerMUSTcutthecablestofit.

Factorycablesareunshielded.For15kVapplications,theymustbeproperlyseparatedfromeachother,fromallgroundedmetalparts,andfromthetransformerbushings/terminalsofotherphas-es.For4.76kVapplications,itisonlynecessarytoinstallcablessotheywillnotbedamagedfromsharpedges,points,etc.

Figure4.TransformerConnectiontoMVSSwitchgear.

PhasingofmainconductorsintypeMVSswitchgearconformstoindustrystandards,whichis1,2,3,fronttorear,toptobottom,andlefttorightatconnectionpointsunlessotherwisenotedonthedrawings.Theinstallerisresponsibleformaintainingcontinu-ityofphasingthroughoutthesystem.

Lugsareprovidedwiththeswitchgearforterminatingthecablestothetransformerbushings/terminalsortotheMVSswitchgearterminals.





3.3.2.2 Connection by Bus Bar

SpliceplatesandhardwarearefurnishedwiththeMVSswitch-gear.Thetransformermanufacturersuppliesaflexibleconnectorifthetransformerisadrytypeorcastcoil.Ifthetransformerisliquidfilledtype,MVSprovidestheflexibleconnector.

Busbaristinorsilver-plated.Toinsureaproperelectricalcon-nection,careshouldbetakentoprotecttheplatingfromdamage.RefertoSection3.1.3,Step4.

AllboltsshouldbetightenedaccordingtothespecificationsgiveninSection9.

3.4ConnectionstoAMPGARDMediumVoltageMotorControlCenter(MCC)

Step1: Holesarepre-drilledinthesideoftheMVSswitchgearstructuretomatchholesprovidedintheAMPGARDMCC.BolttheunitstogetherusinghardwarefurnishedwiththeMVSswitchgear.

Step2: MakethebusconnectionsasdetailedinSection3.3.2.2.

3.5ConnectionstoaMVAMetalCladSwitchgearAssembly

3.5.1 Indoor Switchgear

FollowthesameprocedureasgiveninSection3.4.

3.5.2 Outdoor Switchgear

Step1: Positiontheunitssidebyside.TheholesinMVSsidesheetaroundbuscutoutwillmatchtheholesinmetalcladswitchgearflange.

Step2: PressthespongeneoprenegasketingtapesuppliedwithMVSswitchgearontoflangetoformaweather-tightseal.

Step3: JointheenclosuresusingtheboltssuppliedwithMVSswitchgear.Theoppositesideofthemetalcladswitchgearflangehasnutsweldedinplaceforeaseofconnection.

Step4: MakethebusconnectionsasdetailedinSection3.3.2.2.

3.6ConnectionofCustomerPowerCables

Figures5through14showthesuggestedmeansforconnectionoftheincomingorexitingcables(maximumoftwoperphase,500kcmil)inMVSswitchgear.Thelettersineachfigureapplytotheitemizedsubjectsfollowing.Allnecessarymaterialstoperformthecableinstallationaretobeprovidedbyothersunlessspecificallynotedotherwiseinthedetailedinstructionsbelow,orwherespecifi-callypurchasedwiththeswitchgearassembly.Toinstalltheincom-ingandexitingcables,followtheseinstructions.

A. TheSwitchgearTerminalsForincomingpower,theterminalsareusuallylocatedatthetopoftheswitchinaverticalsection.Foroutgoingcircuits,theter-minalsarebeneaththeswitchifunfused,oronthefusemount-ingiffused.Eachterminalpadhasa2-holepatternsuitableforeitherasingle-holeterminaloraterminalwitha2-holeNationalElectricalManufacturersAssociation(NEMA)drillingpattern.Theterminallugsforthecable,ifpurchasedwiththeswitchgear,willbeboltedtotheswitchgearterminals.Iftheterminallugsarenotthere,thentheyaretobeprovidedbyothers.Theterminalsoftheswitchgeararenotsuitabletosupporttheweightofthecable.ItwillbenecessarytosupporttheweightofthecablewiththecablesupportanglediscussedinCbelow.

B. CableElectricalStressReliefDevicesThedesignofMVSswitchgearisbasedupontheuseofpre-formedtypeelectricalstressreliefdevicessuchas3-MQuickterm-II,Raychemheatshrinkterminationsystems,etc.Thestressreliefdevicesaretobeprovidedbyothers.

C. CableSupportChannel(s).ThecablesupportdevicesaresuppliedbytheinstallerunlessspecificallypurchasedwiththeMVSswitchgear.MVScablesup-ports,whensupplied,aremadeofstructuralframingchannel.Thecablesupportsmustbemountedtosuitthegeometryoftheinstallation.Themeanstofastenthecabletothecablesup-portingdevicesaretobeprovidedbyothers.Therearealargenumberofcommerciallyavailablecablesupportdevicesthatcanbefastenedtothestructuralframingchanneltosupportthecablesothecableweightisnothangingontheswitchgearterminals.

WARNINGFAILURE TO INSTALL THE CABLE SUPPORT MAY RESULT IN DAMAGE TO THE SWITCHGEAR TERMINALS, WHICH IN TURN MAY RESULT IN MAJOR EQUIPMENT DAMAGE AND CAUSE SEVERE PERSONAL INJURY OR DEATH. THE CABLE SUPPORT MUST BE INSTALLED AS INSTRUCTED IN THIS DOCUMENT.

D. LacingCordorOtherEquivalentMaterials/MeansThecablesmustbelashedtogethertorestrainthecablesifashortcircuitshouldoccur.Thismaterialistobeprovidedbyoth-ers.Forlargecablesand/orcablereverseloops,itmayalsobenecessarytolashthecablebundle(s)tothesupportchannel.Theviewsshowthissuggestedfasteningofthecablebundles.

WARNINGFAILURE TO LASH THE CABLES TOGETHER MAY RESULT IN DAMAGE TO THE SWITCHGEAR, WHICH IN TURN MAY RESULT IN MAJOR EQUIPMENT DAMAGE AND CAUSE SEVERE PERSONAL INJURY OR DEATH. THE CABLE MUST BE LASHED TOGETHER AS INSTRUCTED IN THIS DOCU-MENT.

E. CurrentTransformer(s)Thecurrenttransformersaretobemountedonthesideofthecablesupportthatwillphysicallysupportthecurrenttransform-erssotheywillnotslidedownontothestressreliefdevices.Thehighvoltagecableistoberoutedthroughthecurrenttrans-former.TheH1sideofeachcurrenttransformeristobetowardsthenormalsourceofelectricpower.Eachcurrenttransformersec-ondarywiringisterminatedataplug.Thisplugistobeplacedintheterminalblockreceptacletomatchthephaseonwhichthecurrenttransformerismounted.Theswitchgearterminalswillhavephaselabeling.Thesecondarywiresaretobefastenedtothesupportchannelsotheycannotfallintohighvoltageparts




Figure5.BottomCableEntrance(EnergySource),RearAccess.

Figure6.TopCableEntrance(EnergySource),RearAccess.

Figure7.UnfusedBottomCableExit(toLoad),RearAccess.

Figure8.UnfusedTopCableExit(toLoad),RearAccess.

Figure9.TopCableEntrance(EnergySource),FrontAccess.

Figure10.BottomCableEntrance(EnergySource),FrontAccess.





Figure11.UnfusedTopCableExit(toLoad),FrontAccess.

Figure12.UnfusedBottomCableExit(toLoad),FrontAccess.

Figure13.Unfusedbottomcableexit(toload),frontaccess.

Figure14.FusedBottomCableExit(toLoad),FrontAccess.

3.7FieldTapingofElectricalConnections

Duringthefollowingprocedures,pleaserefertoFigure15.

Figure15.FieldTapingofElectricalConnections.

3.7.1 Definitions and Eaton Electrical, Inc. Approved Materials for Field Insulation

Filler:NashuaNo.102DuctSealeror3MCo.ScotchfilorNeerDuctSeal.

InsulatingTapeandPad:Either3MCo.Scotch23orScotch130C.

InsulatingBoot:Moldedplasticcoverthatisputoverajointandfastenedinplacewithwireties.

Joint:Anareatobeinsulated.Thisconsistsofthebareconductorand1.5in.(38.1mm)ofanypre-insulationnexttothebareconduc-tor.

Layer:Insulatingtape,1.0-in.(25.4-mm)wide,wrappedfromoneendofthejointtotheother(ortoapad)soeachsucceedingturnlapsthepreviousturnbytheamountspecifiedinthetapingchart.

Overlap:Aspecifieddistancemeasuredalongthepre-insulationstartingfromthepointwherethepre-insulationendsandtheexposedconductorbegins.

Pad:Anyinsulatingtapeappliedwhichiswiderthan1.0in.(25.4mm).Includesabandoftapeconsistingofoneormoreturnswrappeddirectlyontopofeachother.

Pre-Insulation

InsulatingTape

FillerPadLap

1- 1/ 2" (Min.Lap)

TYPICAL INSULATING TAPE AND PAD




Pre-insulation:Anyinsulationcovering(sleevingmaterialssuchasNORYL,Raychem,SCOTCHTITE,andfluidizedepoxycoating)adjacenttoanexposedconductorpriortoinsulating.

WARNINGUSE OF SOLVENTS, OILS, JOINT COMPOUNDS, OR GREASE ON OR NEAR NORYL INSULATION WILL DESTROY IT.

3.7.2 Responsibility of Installer

Forincomingoroutgoingterminations,theseapprovedmaterialsarenotsuppliedbyEatonElectrical,Inc.andmustbeobtainedandinstalledbyothersasidentifiedaboveinthedefinitions.

Forconnectionsinvolvingshippingsplitswithinaswitchgearassembly,orconnectingtoatransformer,ortoanAMPGARDMCC,ortoaMVAswitchgearassembly,ortoamediumvoltagebusrun,insulatingmaterialswillbesuppliedbyEatonElectrical,Inc.onlyifnecessary.Itistheresponsibilityoftheinstallertoinsulatetheconnectionsinaccordancewiththeseinstructions.

Foraswitchgearassemblythatdoesnothavecontinuousinsulat-ingsleevingonthephasebusconductorsandwherethedimen-sionsinthetablebelowarenotmetatcableconnectionsorbusconnectionstootherapparatus,insulationoftheseconnectionsmustbemade.

Table7. MinimumClearanceChart.kV Rating of the MVS Switchgear

Phase-to-Phase*in. (mm)

Phase-to-Groundin. (mm)

5 3.5 (88.9) 3.5 (88.9)

15 6 (152.4) 6 (152.4)

CAUTIONFAILURE TO INSTALL FIELD INSULATION WHERE NECESSARY IN ACCOR-DANCE WITH THESE INSTRUCTIONS WILL COMPROMISE THE ELECTRICAL RATINGS OF THE SWITCHGEAR ASSEMBLY. INSTALL FIELD INSULATION TO MAINTAIN THE ELECTRICAL RATINGS.

3.7.3 Field Insulation Methods

3.7.3.1 Method 1 - Using an Insulating Boot

Step1: Cleantheareaofdirtandforeignmatter.Useaclean,dryclothor,ifnecessary,dampenslightlywithdistilledwater.Donotuseanyabrasivesorsolvents.

Step2: Placethebootoverthejointsoitfitsinplace.Fastentogetherwithplasticwireties.Cutoffexcessendsofplasticwireties.

3.7.3.2 Method 2 - Using Insulating Tape and Filler:

3.7.3.2.1General

Step1: Elongatetheinsulatingtape10to25%duringapplicationtoinsureasmooth,tightfit.Onpads,elongatethecor-nersonly.

Step2: Shouldataperollexpireduringapplication,startthenewrolebyoverlappingthepreviousendby1/2turn.

3.7.3.2.2Joint-NoHardware


Step2: Applyoneturnof1.0in.(25.4mm)tapeso1/2ofthetapeisontheconductorand1/2isonthepre-insulation.Overlapthetapeends1.5in.(38.1mm).

Step3: Applyonelayerofinsulatingtape,lappingasspecifiedinthetapingchartbelow,overlappinganypre-insulationby1.5in.(38.1mm).

3.7.3.2.3Joint-withHardware


Step2: Applythefilleroverthebareconductorandhardwaretocoverandsmoothoutthesurface.Blendthecontourintopre-insulationsurfaces.Covertheconductorsandhard-warewithatleast0.125in.(3.18mm)inchoffiller.

Step3: Applypad(s)ofinsulatingtapeofsufficientwidthtoover-lapthepre-insulationby1.0in.(25.4mm)ormore.

Step4: Applyonelayerofinsulatingtape,lappingasspecifiedinthetapingchart,overlappinganypre-insulationorpadsby1.5in.(38.1mm).

Table8. TapingChart.MVS kV Rating

Pre-insulation or Pad Overlap (Minimum) in. (mm)

Insulating Tape

Lap of Tape No. of Layer No. of Pad

5 1.5 (38.1) 1/2 1 1

Over 5 1.5 (38.1) 2/3 2 2

3.7.4 Factory Installed NORYL Insulation

FactoryinstalledinsulationmaybeNORYL,ahigh-performanceengineeringthermoplastic.Itcanbeirreversiblydamagedifitcomesincontactwithcertainchemicals.SeeSection6.3.2forcleaningprocedures.

WARNINGUSE OF SOLVENTS, OILS, JOINT COMPOUNDS, OR GREASES ON OR NEAR NORYL INSULATION WILL DESTROY IT. CLEAN ONLY WITH WATER OR ISOPROPYL ALCOHOL.

CAUTIONISOPROPYL ALCOHOL IS FLAMMABLE. PROVIDE ADEQUATE VENTILATION AND KEEP AWAY FROM FLAMES AND OTHER IGNITION SOURCES. CONSULT YOUR SAFETY DEPARTMENT BEFORE USING.

3.8SecuringMVS,MSB,andMEBSwitchgearAssembliestoFoundations

AllanchoringhardwareandnecessarydevicesaresuppliedbyEatonElectrical,Inc.Iftheswitchgearassemblywaspurchasedforseis-micapplications,followtheinstructionsonthespecificdrawingsprovidedfortheswitchgearassemblythataddresstheanchoringdetails.Anotherdrawingaddressestheloadbearingrequirements.Indoororoutdoorverticalsectionsaresecuredusingclipsandfoundationbolts.AnchorsandlagscrewsmaybeusedinplaceofJ-boltsifdesired.

10

InstructionBookletIB02102001EEffective June 2011




3.8.1 Typical Floor Plans

Figures16and17showfloorplansforinstallingMVSswitchgearintypicalandseismicapplications.

Figure16.FloorPlanofaTypicalNon-seismicMVS4.76kVand15kVSwitchgearInstallation.

THE FOUNDATION'S SURFACE SHALL BE LEVEL WITHIN

MINIMUM CLEARANCES IN REAR. LOCAL JURISDICTIONS

MINIMUM CLEARANCES IN FRONT IS THE WIDTH OF THE

MINIMUM CLEARANCES ON SIDE. LOCAL JURISDICTIONS

0.0125 INCH IN 36 INCHES [0.318 MM IN 9.14.4 MM]LEFT TO RIGHT, FRONT TO REAR, AND DIAGONALLY, AS MEASURED BY A LASER LEVEL AT ANY POINT BENEATH THE SWITCHGEAR ASSEMBLY.

MAY REQUIRE A LARGER DISTANCE.

JURISDICTIONS MAY REQUIRE A LARGER DISTANCE.

MAY REQUIRE A LARGER CLEARANCE.

DOOR SWING EQUALS UNIT WIDTH AT 90 DEGREES.

LOCATIONS FOR TIE-DOWN CLIPS. PROVISIONS

WIDEST VERTICAL SECTION PLUS ONE INCH. LOCAL

(TYP)

FOR 0.50 INCH [13 MM] ANCHOR BOLTS.

5

6

4

3

2

1

[152]MIN.

.86[22]

3

(TYP)

6.00

[11]

.44

FRONT

TYPICAL ANCHORPLAN FOR UNITS

2

DOOR

MIN.

4

WIDTH2 5

1

30.00MIN.

[25]

1.37(TYP)

[35]

1.00

3

MIN.

[762]

Figure17.FloorPlanofaSeismicMVS4.76kVand15kVSwitchgearInstallation.

MINIMUM CLEARANCES ON SIDE. LOCAL JURISDICTIONS

MINIMUM CLEARANCES IN FRONT IS THE WIDTH OF THE

MINIMUM CLEARANCES IN REAR. LOCAL JURISDICTIONS

FOR 0.50 INCH [13 MM] ANCHOR BOLTS.

(TYP)

WIDEST VERTICAL SECTION PLUS ONE INCH. LOCAL

LOCATIONS FOR TIE-DOWN CLIPS. PROVISIONS

DOOR SWING EQUALS UNIT WIDTH AT 90 DEGREES.

MAY REQUIRE A LARGER CLEARANCE.

JURISDICTIONS MAY REQUIRE A LARGER DISTANCE.

MAY REQUIRE A LARGER DISTANCE.5

6

3

4

2

1

4.50

[152]MIN.

[22].86

3

(TYP)

(TYP)

6.00

[11]

.44

[114]

FRONT

PLAN FOR UNITSTYPICAL ANCHOR

DOOR

2MIN.

4

5MIN.30.00

[25]

[35]

(TYP)1.37

1

1.00MIN.

3

[762]

THE FOUNDATION'S SURFACE SHALL BE LEVEL WITHIN 0.0125 INCH IN 36 INCHES [0.318 MM IN 914.4 MM]LEFT TO RIGHT, FRONT TO REAR, AND DIAGONALLY, AS MEASURED BY A LASER LEVEL AT ANY POINT BENEATH THE SWITCHGEAR ASSEMBLY.

11




4.1InspectionBeforeStartup

EachMVS/MSB/MEBswitchgearassemblyisfunctioningproperlyatthefactorybeforeshipment.However,vibrationandmechani-calstressesimposedbytransitandinstallationcanadverselyaffecttheswitchgearassemblyanditscomponentdevices.Therefore,aninspectionisessentialbeforeenergizing.Ifthisinspectionrevealstheswitchgearassemblyoranycomponentdevicehascomeoutofadjustment,theswitchgearoritscomponentdeviceshouldberead-justedaccordingthisinstructionbulletinandtheassociatedinstruc-tiondocumentsforthecomponent.

Inspectionproceduresrequireclosingandopeningtheswitchwiththemaindooropen.Thisrequiresoverrideoftheswitchsafetyinterlocks.ThisisdescribedintheswitchinstructionbulletinIB02102002E,Section5.3.1.ForcircuitbreakerinstructionswhentheswitchgearistypeMSB,refertoIB69C3067H06.ForcircuitbreakerinstructionswhentheswitchgearistypeMEB,refertoIB32-255-1. Whenfusemountingsaresupplied,checktoensurethefuse

mountingsaresecurelyfastenedandthefusesaresecurelyclampedinplace.

WhenEatonElectrical,Inc.typeRBAfusesareprovided,checktoensurethedischargefiltersorcondensersonthefuseshavebeensecurelyhandtightened.

PerformtherecommendedproceduresinSection6.3toassuretheinsulationintegrityoftheswitchgearassembly.

Afinal,thoroughinspectionshouldbemadetoensurethatnotoolsorotherobjectsareaccidentallyleftinsidetheenclosure.

Section 4: Switchgear Assembly Inspection Before StartupEachswitchisproperlyadjustedatthefactorybeforeshipment.However,vibrationandmechanicalstressesimposedbytransitandinstallationcanadverselyaffectswitchadjustment.Therefore,afinalinspectionisessentialbeforeenergizing.Ifthisinspectionrevealsanydefectsinadjustment,theyshouldbecorrectedaccordingtoalignmentproceduresinIB02102002E,Section5.3.

Step1: Checktheboltedbusconnectionsforpropertightness,referringtoSection9fortorquevalues.

Step2: Ifnon-disconnecttypemountedfusesaresupplied,checktheplasticknobsthatholdthefusesinplace.Theyshouldbehandtight.

Step3: Ifdisconnectfusesaresupplied,checktoseethattheyarecompletelylatchedclosed.

Step4: Forunitsfittedwithexpulsion-type,boricacidfuses,checkthedischargefiltersonthelowerendofthefusesaresecurelyhandtight.

Step5: Checktoseeifthespaceheaters,ifsupplied,areener-gized.

Step6: Wipeawayanydustordirtthatmayhaveaccumulatedincompartment(s),payingparticularattentiontoinsulatorsandinsulatingmaterial.Ifbusisinsulated,seeSection6.3.2forcleaningprocedures.

WARNINGUSE OF SOLVENTS, OILS, JOINT COMPOUNDS, OR GREASES ON OR NEAR NORYL INSULATION WILL DESTROY IT. CLEAN ONLY WITH WATER OR ISOPROPYL ALCOHOL.

WARNINGNORYL INSULATED EQUIPMENT: ELECTRICAL JOINT COMPOUNDS MUST NOT BE USED ON CONNECTIONS OR TERMINATIONS TO OR FROM THIS EQUIPMENT. DO NOT USE SOLVENTS, OILS, OR GREASES ON OR NEAR THIS EQUIP-MENT. WATER AND ISOPROPYL ARE THE ONLY APPROVED CLEANERS FOR THIS EQUIPMENT.


Step7: Afinalthoroughinspectionshouldbemadetoensurethatnotoolsorotherobjectsareaccidentallyleftinsidetheenclosure.

WARNINGDEFEATING OR DISENGAGING SAFETY INTERLOCKS ON A MVS OR MVS2 SWITCH THAT IS CONNECTED TO A POWER SOURCE MAY RESULT IN PROPERTY DAMAGE, BODILY INJURY OR DEATH. DO NOT DEFEAT OR DISENGAGE ANY SAFETY INTERLOCKS.

12





Section 5: Operation5.1MechanicalSafetyInterlocks

TheMVSorMVS2manuallyoperatedswitchisequippedwithswitchinterlocksanddoorinterlocksaswellasprovisionsforpad-lockingineithertheopenorclosedposition.SeeIB02102002Efordetailsoftheinterlocksandtheirfunctions.

5.2KeyInterlocking

Keyinterlocksaresuppliedwhenspecified,butcertainMVSswitch-gearconfigurationsrequirekeyinterlocksandtheyarethereforeincluded.Standardschemesareavailableforlockingtheswitchintheopenpositionortheclosedposition,aswellaslockingthemaindoorclosed.NumerousotherschemesareavailableforspecialrequirementsthatmustcoordinatewithupstreamordownstreamdevicessuppliedbyEatonElectrical,Inc.orotherequipment.

5.3FuseReplacement

WARNINGFAILURE TO COMPLETELY DISCONNECT THE MVS SWITCHGEAR ASSEM-BLY FROM ALL POWER SOURCES PRIOR TO INSPECTION MAY RESULT IN SEVERE INJURY OR DEATH. THE SWITCHGEAR ASSEMBLY MUST BE COMPLETELY DISCONNECTED FROM ALL POWER SOURCES AND GROUNDED BEFORE PERFORMING ANY INSPECTION.

WARNINGWHEN ACCESSING FUSES, FAILURE TO ASSURE THAT THE FUSES ARE DE-ENERGIZED MAY RESULT IN EQUIPMENT DAMAGE, BODILY INJURY, OR DEATH. MAKE SURE THAT ALL POWER SOURCES ARE DE-ENERGIZED BEFORE ATTEMPTING TO ACCESS THE FUSES.

Step1: Alldevicesthatcouldenergizethefuseshouldbeopened,padlocked,andtaggedsothatinadvertentclosurecannotcreateahazard.

Step2: TheMVSorMVS2switchshouldbeopenedbyrotatingthehandledownward.

Step3: Beforeopeningthedoor,lookthroughawindowtovisuallyverifythatallbladesaredisengagedfromtheirbreakjaws.

Step4: Afteropeningthedoor,anappropriatemediumvoltage-sensingdeviceshouldbeusedtodetermineifvoltageispresent.

Step5: Ifnovoltageispresent,asuitablegroundingdeviceshouldbeattachedtothefuseterminalstodischargeanystaticchargeandassurethatthefuseterminalsremainatgroundpotential.

Fusesareremovedbylooseningtheplastichandknobsandremov-ingthelockingbars.Fusesarethenfreetoberemoved.Whenfusesarere-installed,thehandknobsshouldberetightenedhandtight.

Section 6: Maintenance

WARNINGFAILURE TO COMPLETELY DISCONNECT THE MVS SWITCHGEAR ASSEM-BLY FROM ALL POWER SOURCES PRIOR TO INSPECTION MAY RESULT IN SEVERE INJURY OR DEATH. THE SWITCHGEAR ASSEMBLY MUST BE COMPLETELY DISCONNECTED FROM ALL POWER SOURCES AND GROUNDED BEFORE PERFORMING ANY INSPECTION.

6.1InspectionSchedule

Theswitchgearshouldbeinspectedonaregularperiodicbasistoensureallcomponentsarefunctioningcorrectlyandtheinsulationsystemintegrityisbeingmaintained.Seetheappropriateinstructiondocumentsforthecomponentdevices.

6.2InspectionProcedure

Wipeawayanydustordirtthatmayhaveaccumulatedinsideeachswitchgearverticalsection,payingcloseattentiontoinsulatorsandinsulatingmaterial.Ifthebusisinsulated,seeSection6.3.2forcleaningprocedures.

6.3InsulationandConductorMaintenance

6.3.1 Insulated Bus Coverings Made from NORYL

InsulatedbuscoveringsaremadefromNORYL,ahigh-performanceengineeringthermoplastic.NORYLcanbeirreversiblydamagedifitcomesincontactwithcertainchemicals.Suchpetroleumcontainingproductsassolvents,oils,greases,andelectricaljointcompoundsareespeciallyharmful.Non-metallicmaterials,notspecificallyapprovedbyEatonElectrical,Inc.Engineering,shouldnotcomeincontactwiththeNORYL.Onlyspecifiedtapesandfillersshouldbeusedwheninsulatingbusbarjoints.SeeSection3.7fordetails.

6.3.2 Electrical Parts and Insulation Check and Cleaning

De-energizeprimarycircuitsbeforeremovinganyenclosureparts.Beforecleaning,takeMEGGERreadingsbetweenlivepartsandtoground.Inspectforsignsofoverheatingorweakenedinsulation.Removedustfromconductors,liveparts,insulators,componentinsulation,liveparts,andenclosuresurfaces.Anindustrialgradevacuumcleanerwouldassistthisprocedure.Wipecleanwithiso-propylalcoholordistilledwateronly,thenwipedry.

WARNINGNORYL INSULATED EQUIPMENT: ELECTRICAL JOINT COMPOUNDS MUST NOT BE USED ON CONNECTIONS OR TERMINATIONS TO OR FROM THIS EQUIPMENT. DO NOT USE SOLVENTS, OILS, OR GREASES ON OR NEAR THIS EQUIP-MENT. WATER AND ISOPROPYL ARE THE ONLY APPROVED CLEANERS FOR THIS EQUIPMENT.


Aftertheliveparts,insulators,anddriverodlinkshavebeendustedandwipedclean,takeMEGGERreadingsagainbetweenthelivepartsandbetweenphases.Keeparecordofthesereadingsforfuturereferenceindeterminingwhentrendsoccurthatwouldindi-catealoweringoftheinsulationresistance.

13




Periodichighpotentialtestsarenotrequiredandarerecommendedonlyafterrepairofhighvoltagelivepartsorinsulation,orwhenthetrendofMEGGERreadingsindicatesittobeadvisable.ThisfieldtestshouldbemadebeforethemaincablesareconnectedandshouldnotexceedthevaluesintheTable9.

Table9. FieldDielectricTestValues.

kV ClassTest Voltage, 60Hz AC,

Applied for One (1) Minute.

5 14.25

15 27

Theintentofthecleaningprocedureistoremoveasmuchdirt,dust,andotherforeignmaterialaspossiblefromtheinsulationwithmini-mumexposuretoanysolvents.Therecommendedcleaningproce-dureistousealint-freecloth.Inmostcasesthiswillbesufficient.

Foraccumulationsthatcannotberemovedbytheaboveprocedure,alint-freecloth,slightlydampenedwithwater,canbeused.Allowtheapparatustodryforatleastfourhoursatroomtemperaturebeforeenergizingortesting.Ifalint-free,waterdampenedclothdoesnotproducesatisfactoryresults,usealint-freeclothdampenedwithisopropylalcohol.Drythesameaswhenusingawater-damp-enedcloth.


6.4Lubrication

Lubricationshouldbedoneduringroutinemaintenance.Allexcesslubricationmustberemovedwithacleanclothtopreventanyaccu-mulationofdustordirt.Avoidanylubricationoninsulation.Caremustbetakentopreventanynon-conductivelubricantfromreachinganycurrentcarryingcontactsurface.Useconductivegrease(EatonElectricalpartnumber7274A48H02)onmovingandslidingcontactsofthevoltagetransformertraysandothersimilarcomponents.Usemechanicallubricatinggrease(EatonElectricalpartnumber53701AI)onmovingpartsthatarenotelectricalcontacts.SeeIB02102002EfortheMVS2switchlubricationrequirements,andseeIB2102003EforMVSselectorswitchlubricationrequirements.Forothercompo-nentsseetheappropriateinstructiondocumentsforthosecompo-nents,fortheirlubricationrequirements.

Section 7: Duplex Switchgear ConfigurationWhensupplied,theduplexconfigurationconsistsoftwoverticalsectionscontainingMVSorMVS2switchesconnectedtogetherbyacommonbusonthehingeterminalsofeachswitch.This,inturn,isconnectedtoonesetoffuseslocatedinoneoftheswitchcom-partments.Thisarrangementallowstheselectionofeitheroftwoincominglines.

Figure18.DuplexSelectiveSwitchOperation.

Thisarrangementisalwayssuppliedwithkeyinterlockingforsafeoperation.Keyinterlockingconsistsofalockoneachswitchtolocktheswitchintheopenpositionandalockoneachdoortolockeachdoorclosed.Eachofthelocksiskeyedalikeandonlyonekeymustbeavailabletooperatingpersonnel.Sincethekeyisretainedinitslockwhenaswitchisclosedorwhenadoorisopened,twothingsareassured: Onlyoneswitchmaybeclosedatatimetopreventparallelingof

incominglines. Bothswitchesmustbelockedintheopenpositiontounlock

eithermaindoor,preventingaccesstoenergizedloadsidebusorfuses.

WARNINGONLY ONE KEY SHOULD BE AVAILABLE TO OPERATING PERSONNEL FOR THIS INTERLOCK SCHEME. WHEN SHIPPED FROM THE FACTORY, EACH LOCK WILL HAVE A SEPARATE KEY. ALL EXTRA KEYS MUST BE DESTROYED OR OTHERWISE MADE INACCES-SIBLE TO OPERATING PERSONNEL. FAILURE TO DO SO COULD RESULT IN SEVERE INJURY OR DEATH.

14





Section 8: MSB and MEB Switchgear Assemblies

ote:N DetailedVCP-WcircuitbreakerinformationisprovidedininstructionbookIB32-255-1.

ote:N DetailedVCP-TRcircuitbreakerinformationisprovidedinIB69C3067H07.

8.1DescriptionandApplication

MSBswitchgearisanintegratedassemblyofavisibleMVSorMVS2disconnectswitch,bus,afixedmountedtypeVCP-TRvacuumcircuitbreaker,andcontroldeviceswhicharecoordinatedelectricallyandmechanicallyforhighvoltagecircuitprotection.TheMSBswitchgearassemblyprovideseconomicandreliablecircuitinterruptionandfaultprotectionforhighvoltagecircuits2.4kVthrough15kV.

MEBswitchgearisanintegratedassemblyofbus,adrawoutmountedtypeVCP-Wvacuumcircuitbreaker,andcontroldevicescoordinatedelectricallyandmechanicallyforhighvoltagecircuitpro-tection.TheMEBswitchgearassemblyprovideseconomicandreli-ablecircuitinterruptionandfaultprotectionforhighvoltagecircuits2.4kVthrough15kV.

8.2Identification

SeeSection1.8ofthisbulletin.

8.3SafetyFeatures

ThesevensafetyfeaturesoutlinedinSection1.9ofthisdocumentalsoapplytoMSBswitchgear.Inaddition,thefollowingfeaturesapplytoreducehazardsandtoprovideproperoperatingsequences.ThefollowingfeaturesalsoapplytoMEBswitchgearassemblies.

1. Forelectricallyoperatedcircuitbreakers,anexternalcontrolswitchisprovidedtoallowcustomertoopenorclosethevacu-umcircuitbreakerwiththefullheightmaindoorclosed.

2. Forelectricallyoperatedcircuitbreakers,redandgreenindicatinglightsareprovidedtogivevisualindicationofcircuitbreakersta-tus(open/closepositions).

3. Semi-flush fixed mounted relay and metering devices are mounted on the front hinged door in a protective relay cabi-net for convenient access.

4. The breaker function indicators and controls are accessible and visible when the full height door is opened.

5. The breaker function indicators are: Breaker-open/close;

Closingspring-charged/discharged;

Closeandtripbuttons;

Operationcounterbreakerlatch;and

Manualspringchargingaccess.

6. The stored energy mechanism is vertically mounted on the front of the breaker for easy access. It is available for either DC or AC operation. The VCP-TR circuit breaker can also be equipped with integral protective functions that do not require external control power to trip the circuit breaker dur-ing an overcurrent condition.

7. The vacuum interrupter contact wear indicator is clearly vis-ible, and the wear-gap (contact erosion) indicators require only an occasional check.

8.4Receiving,Handling,andStorage

TheVCP-TRbreakercomesinstalledwithintheMSBassembly.SeeSection2ofthisdocumentfortheMSBassembly.TheVCP-Wcir-cuitbreakermaycomeinaseparateshippingcartonandwillhavetobeinstalledoncetheswitchgearassemblyisinstalled.

8.5Installation

RefertoSection3ofthisdocumentforMSBorMEBswitchgearassemblyinstallation.

ForaVCP-WcircuitbreakeroraVCP-TRcircuitbreakerbeforestart-up,refertotheappropriatesectionintheapplicableinstructionbookforthisinformation.

8.5.1 Electromechanical or Solid State Relays and Devices - Before Startup.

WARNINGELECTROMECHANICAL RELAYS ARE MECHANICALLY "BLOCKED" FOR SHIP-MENT PURPOSES. REMOVE ALL SHIPPING BLOCKS PRIOR TO THE SETTING OF RELAYS.

Step1: Setallprotectiverelaysinaccordancewithsystemprotec-tioncoordinationstudydata.Alloperationindicatorsontheprotectiverelaysarefactorysetforthecontrolvoltageutilized.

Step2: Setor"program"allelectronicdevicesinaccordancewithsystemprotectioncoordinationstudydataorotherappli-cabledata.Refertothosedevices'instructionsforspecificprocedures.

8.6Operation

Refertotheapplicablecircuitbreakerinstructionbookforcircuitbreakeroperation.

8.7Maintenance

Refertotheapplicablecircuitbreakerinstructionbookformainte-nanceofthecircuitbreaker.Forswitchgearmaintenance,refertoSection6ofthisdocument.

8.7.1 Breaker Removal, VCP-TR Circuit Breaker

WARNINGFAILURE TO FOLLOW THE STEPS BELOW TO ACCESS OR REMOVE A VCP-TR CIRCUIT BREAKER COULD RESULT IN SEVERE INJURY OR DEATH. FOLLOW THESE STEPS TO SAFELY ACCESS OR REMOVE THE CIRCUIT BREAKER.

Step1: Allupstreamdevicesthatcouldenergizethecircuitbreakershouldbeopened,padlocked,andtaggedsothatinadver-tentclosurecannotcreateahazard.

Step2: TheMVSswitchmustbeopenedbyrotatingthehandledownward.

Step3: Beforeopeningthedoor,lookthroughthewindowtovisu-allyverifythatallbladesaredisengagedfromtheirstation-arycontacts.Useaflashlightifnecessary.

Step4: Afteropeningthedoor,amediumvoltage-sensingdeviceshouldbeusedtodetermineifvoltageispresent.

Step5: Ifnovoltageispresent,asuitablegroundingdeviceshouldbeattachedtothebusconnectionstodischargeanystaticchargeandensurethatthebusconnectionsremainatgroundpotential.

AlthoughtheVCP-TRcircuitbreakerisafixedmounteddeviceinaMSBswitchgearverticalsection,itcanberemovedformaintenancepurposes.

15




Section 9: MVS Switchgear Bolt Tightness for Bus ConnectionsUsethefollowingtorquevaluefortighteningbusjoints.

Table10. BusJointHardwareTightnessValues.Bolt Diameter Decimal Size

in. (mm)

Bolt Diameter Standard

Nominal Torque ft-lb (N-m)

0.250 (6.35) 1/4-20 4 (5.42)

0.312 (7.93) 5/16-18 8 (10.85)

0.375 (9.53) 3/8-16 25 (33.90)

0.500 (12.70) 1/2-13 50 (67.80)

0.625 915.88) 5/8-11 65 (88.13)

Section 10: Renewal Parts

Table11. CommonRenewalParts.Part Description Style

Number

Insulator, Glass Polyester, 4.76 kV 4892A97H01

Insulator, Glass Polyester, 15 kV 4892A97H02

Insulator, epoxy, 4.76 kV 4892A97H07

Insulator, Epoxy, 15 kV 4892A97H08

Bus Support Polyester/Nylon, 8 in. Centers 260C003H01

Bus Support Polyester/Epoxy, 8 in. Centers 260C265H01

Bus Brace, 3 Conductor Polyester/Nylon, 8 in. Centers 260C005H01

Bus Brace, 3 Conductor Polyester/Epoxy, 8 in. Centers 260C266H01







Fuse Live Parts Kit, RBA200 4.76 kV 98A1125G22

Fuse Live Parts Kit, RBA200 15 kV 98A1125G23



Space Heater, 125 V 250 W 3614A50H01

Space Heater, 250 V 250 W 3614A50H02

Set of Fuse Barriers (15 kV Class) 7278A27G43



Fuse Live Parts Kit, CLE, 3 in. Diameter, Ferrule Single Barrel, 4.76 kV 98A1125G03

Fuse Live Parts Kit, CLE, 3 in. Diameter, Ferrule Single Barrel, 15 kV 98A1125G04

Fuse Live Parts Kit, CLE, 3 in. Diameter, Ferrule Double Barrel, 4.76 kV 98A1125G05

Fuse Live Parts Kit, CLE, 3 in. Diameter, Ferrule Double Barrel, 15 kV 98A1125G06

EatonCorporationElectricalSector1111SuperiorAve.Cleveland,OH44114UnitedStates877-ETN-CARE(877-386-2273)Eaton.com

2011EatonCorporationAllRightsReservedPrintedinUSAPublicationNo.IB02102001E/TBG000602June2011

EatonisaregisteredtrademarkofEatonCorporation.

Allothertrademarksarepropertyoftheirrespectiveowners.




Thisinstructionbookletispublishedsolelyforinformationpurposesandshouldnotbeconsideredall-inclusive.Iffurtherinformationisrequired,youshouldconsultanauthorizedEatonsalesrepresenta-tive.

ThesaleoftheproductshowninthisliteratureissubjecttothetermsandconditionsoutlinedinappropriateEatonsellingpoliciesorothercontractualagreementbetweentheparties.Thisliteratureisnotintendedtoanddoesnotenlargeoraddtoanysuchcontract.ThesolesourcegoverningtherightsandremediesofanypurchaserofthisequipmentisthecontractbetweenthepurchaserandEaton.

NOWARRANTIES,EXPRESSEDORIMPLIED,INCLUDINGWARRANTIESOFFITNESSFORAPARTICULARPURPOSEORMERCHANTABILITY,ORWARRANTIESARISINGFROMCOURSEOFDEALINGORUSAGEOFTRADE,AREMADEREGARDINGTHEINFORMATION,RECOMMENDATIONS,ANDDESCRIPTIONSCONTAINEDHEREIN.InnoeventwillEatonberesponsibletothepurchaseroruserincontract,intort(includingnegligence),strictliabilityorotherwiseforanyspecial,indirect,incidentalorconse-quentialdamageorlosswhatsoever,includingbutnotlimitedtodamageorlossofuseofequipment,plantorpowersystem,costofcapital,lossofpower,additionalexpensesintheuseofexistingpowerfacilities,orclaimsagainstthepurchaseroruserbyitscus-tomersresultingfromtheuseoftheinformation,recommendationsanddescriptioncontainedherein.

Documents

Operation and Maintenance of Switchgear