-
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
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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.
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3InstructionBookletIB02102001EEffective 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
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
Related Capability Rating Rating
Momentary Current Rating, kA Peak 97 97
Short Time Current rating, 2 Seconds, kA Symmetrical 38 38
Table4.
MVS/MSB/MEBSwitchgearMainBusCurrentRatingforShort-circuitCapabilityof127.5kAPeakfor10Cycles.For
the Main Bus Continuous Current Rating 800 A 1200 A
Related Capability Rating Rating
Momentary Current Rating, kA Peak 127.5 127.5
Short Time Current rating, 2 Seconds, kA Symmetrical 50 50
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
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4InstructionBookletIB02102001EEffective 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 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
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5InstructionBookletIB02102001EEffective 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
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.
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6InstructionBookletIB02102001EEffective 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
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
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7InstructionBookletIB02102001EEffective 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
Figure5.BottomCableEntrance(EnergySource),RearAccess.
Figure6.TopCableEntrance(EnergySource),RearAccess.
Figure7.UnfusedBottomCableExit(toLoad),RearAccess.
Figure8.UnfusedTopCableExit(toLoad),RearAccess.
Figure9.TopCableEntrance(EnergySource),FrontAccess.
Figure10.BottomCableEntrance(EnergySource),FrontAccess.
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8InstructionBookletIB02102001EEffective 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
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
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9InstructionBookletIB02102001EEffective 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
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
Step1:
Cleantheareaofdirtandforeignmatter.Useaclean,dryclothor,ifnecessary,dampenslightlywithdistilledwater.Donotuseanyabrasivesorsolvents.
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
Step1:
Cleantheareaofdirtandforeignmatter.Useaclean,dryclothor,ifnecessary,dampenslightlywithdistilledwater.Donotuseanyabrasivesorsolvents.
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
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
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
InstructionBookletIB02102001EEffective 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
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.
CAUTIONISOPROPYL ALCOHOL IS FLAMMABLE. PROVIDE ADEQUATE
VENTILATION AND KEEP AWAY FROM FLAMES AND OTHER IGNITION SOURCES.
CONSULT YOUR SAFETY DEPARTMENT BEFORE USING.
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
InstructionBookletIB02102001EEffective 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 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.
CAUTIONISOPROPYL ALCOHOL IS FLAMMABLE. PROVIDE ADEQUATE
VENTILATION AND KEEP AWAY FROM FLAMES AND OTHER IGNITION SOURCES.
CONSULT YOUR SAFETY DEPARTMENT BEFORE USING.
Aftertheliveparts,insulators,anddriverodlinkshavebeendustedandwipedclean,takeMEGGERreadingsagainbetweenthelivepartsandbetweenphases.Keeparecordofthesereadingsforfuturereferenceindeterminingwhentrendsoccurthatwouldindi-catealoweringoftheinsulationresistance.
-
13
InstructionBookletIB02102001EEffective 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
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.
CAUTIONISOPROPYL ALCOHOL IS FLAMMABLE. PROVIDE ADEQUATE
VENTILATION AND KEEP AWAY FROM FLAMES AND OTHER IGNITION SOURCES.
CONSULT YOUR SAFETY DEPARTMENT BEFORE USING.
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.
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14
InstructionBookletIB02102001EEffective 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 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
InstructionBookletIB02102001EEffective 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 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
Bus Brace, 2 Conductor Polyester/Nylon, 8 in. Centers
260C005H03
Bus Brace, 2 Conductor Polyester/Epoxy, 8 in. Centers
260C266H03
Bus Brace, 3 Conductor Polyester/Nylon, 8 in. Centers
260C005H01
Bus Brace, 3 Conductor Polyester/Epoxy, 8 in. Centers
260C266H01
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
Fuse Live Parts Kit, RBA400 4.76 kV 98A1125G24
Fuse Live Parts Kit, RBA400 15 kV 98A1125G25
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, RBA800 4.76 kV 98A1125G26
Fuse Live Parts Kit, RBA800 15 kV 98A1125G27
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
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EatonCorporationElectricalSector1111SuperiorAve.Cleveland,OH44114UnitedStates877-ETN-CARE(877-386-2273)Eaton.com
2011EatonCorporationAllRightsReservedPrintedinUSAPublicationNo.IB02102001E/TBG000602June2011
EatonisaregisteredtrademarkofEatonCorporation.
Allothertrademarksarepropertyoftheirrespectiveowners.
InstructionBookletIB02102001EEffective 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
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.