ML18038A128

Forwards Response to IE Bulletin 79-27 Re Electrical Buses Powering safety-related & nonsafety-related Instrumentation & Control Circuitry.Info Suppls Util 851104 Response

ML18038A128
Person / Time
Site:	Nine Mile Point
Issue date:	01/17/1986
From:	MANGAN C V NIAGARA MOHAWK POWER CORP.
To:	ADENSAM E G Office of Nuclear Reactor Regulation
Shared Package
ML17055B229	List: ML17055B228 ML18038A128
References
CON-IIT07-450-91, CON-IIT7-450-91 (NMP2L-0588), (NMP2L-588), IEB-79-27, NUREG-1455, NUDOCS 8602100282
Download: ML18038A128 (213)

Text

IREGULATO~INFORM*TIONDISTRIBUTIONTEM(RIDS)ACCESSIONNBR:8602100282DOC.DATE:'86/01/17NOTARIZED:NODOCKET0F'SCIL:50-410NineMilePointNuclearStationeUnit2iNiagaraMoha05000410AUTH.NAMEAUTHORAFFILIATIONM*NGAN>C.V.NiagaraMohawk.PowerCorp.RECIP.NAMERECIPIENTAFFILIATIONADENSAMiE.G.BWRProspectDirectorate3A(s

SUBJECT:

ForwardsresponsetoIEBulletin79-27reelectricalbusespoweringsafety-related8cnonsafet'-relatedinstrumentation8ccontrolcircuitrg.Infosupp1sutil851104response.~gp/cr/i0DISTRIBUTIONCODE:B001DCOPIESRECEIVED:LTR/NCL1ZE:TITLE:LicensingSubmittal:PSAR/FSARAmdts5RelatedCorrespondenceNOTES:RECIPIENTIDCODE/NAMEBWRADTSBWREBBWRFOBHAUGHEYeM01BWRRSBINTERNAL:ACRS41ELD/HDS3IE/DEPER/EPB36NRRBWRADTSNRRPWR-BADTSNRR/DHFT/HFIBNIRGFILE04IBEXTERNAL:24XDMB/DSS(AMDTS)NRCPDR02PNLGRUEL>RCOPIESLTTRENCL11+11<1lo2'2+1lcR1loI1loj1loRECIPIENTIDCODE/NAMEBWRPD3PDBWREICSBBIJRPD3LABWRPSBADM/LFMBIEFILEIE/DGAVT/GAB21NRRPWR-AADTSNRRROE'.LNRR/DHFT/MTBNRR/DSRO/RRABRGNiBNL(AMDTSONLY)LPDR03NSIC05COPIESLTTRENCLlo1ia11o1lo1colaTOTALNUNBEROFCOPIEBREQUIRED:LTTR,PfENCL MRg*'RI,llM*IMR*4hf"4

'7MIIASAIRAQPgQOQQgNIAGARAMOHAWKPOWERCORPORATION/300ERIEBOULEVARDWEST,SYRACUSE.N.Y.13202/TELEPHONE(315)474-1511January17,1986(NMP2L0588)Ms.ElinorG.Adensam,DirectorBWRProjectDirectorateNo.3U.S.NuclearRegulatoryCommission7920NorfolkAvenueWashington,DC20555

DearMs.Adensam:

Re:NineMilePointUnit2DocketNo.50-410EnclosedistheNineMilePointUnit2responsetoI.EDBulletin79-27requestedbyyourstaffduringtheInstrumentandControlSystemsBranchAudit.ThisinformationsupplementsourpreviousresponsedatedNovember4,1985.tencopiesareprovidedforyouruseandinformation.Verytrulyyours,C.V.MangSeniorVicePresidentNLR:jaEnclosure1233Gxc:R.A.Gramm,NRCResidentInspectorProjectFile(2)'l'IZz~//se~Pr"~"l~'suies~peca/s>/~~*~d'rldSe/bleL8602i00282860ii7PDRADOCK050004i08PDR

-ANO---C~44'+VgQ$>Wl'g~vg%-'ŽhSERD,DOCUMBNTTO';Q',QEHETE~WRIDSSHEETai@FIL'HjPDR~~.'~~",g-'~+;.+'V'.+N''";>~NEW~X'XDCO'Wow><W~gLta~~Mlcr$1DE.mDw-..OTHER~+.Žp~~YES~i~",RICK",jREP<ETgO>>FOR@aDOt;U~~HT."-."(~ITHDLI3'"'L'AB~I"-~~'TO='TOP-";A~Tc,...1;.-',-~(NO-.""--.':-:-'":-::-'::.'"'"-..=;'.;-:'.-,ANO,=."~'.-".-"---"-"-'"--:=.==.'.-'-..----'=:'(t0SUPPLEMENTCREkTED.i~rr>a~,w.t+PQ.'~4Il%P'it,.stj+)$4il'g,~~i~'g,"ii~I,~PIADYi".-'

lt VNIAGARAUMOHAWKaq-0071'3202+IPINF0RMAT(pMNIAGARAMOHAWKPOWERCORPORATION/300ERIEBOULEVARDWEST.SYRACUSEN.Y,13202/TELEPHONE(315)474~1511January17,1986(NMP2L0588)Ms.ElinorG.Adensam,DirectorBHRProjectDirectorateNo.3U.S.NuclearRegulatoryCommission7920NorfolkAvenueHashington,DC20555

DearMs.Adensam:

Re:NineMilePointUnit2DocketNo.50-410EnclosedistheNineMilePointUnit2responsetoI.E.Bulletin79-27requestedbyyourstaffduringtheInstrumentandControlSystemsBranchAudit.ThisinformationsupplementsourpreviousresponsedatedNovember4,1985.Tencopiesareprovidedforyouruseandinformation.Verytrulyyours,-)ij((lLIWLtl,C.V.ManganjSeniorVicePresidentNLR:jaEnclosure1233Gxc:R.A.Gramm,NRCResidentInspectorProjectFile(2) 1J 2VBB-UPSlCTESTSUMMARYpage1Purpose:ToprovethattheDClogicpowerfortheExideUPSispoweredfromtheB-phasemaintenancesupplyandthatifatransientoccursonthemaintenancesupplyitcaneffecttheDClogicsuchthatitwilltriptheunit.Thistestisdonewiththeoldinternallogicbatteriesandthenrepeatedwithnewones.EachoftheinvertertripswillbetestedtoverifythateachcircuitisstillintactexceptDCOV.AnACinputtransienttoUPSwillbesimulatedtoverifythattheunitcan"rideout"anormalACinputtransientwithouttripping.TheK-5relaypickupanddropoutvoltagesandtheDCtrip-pointoftheDClogicwillberecorded.ResultsSummary:1.)XtwasverifiedthattheDClogicpowersuppliesarefedfromtheB-phasemaintenancesupply.2.)ArapidopenandclosingoftheupstreamnormalACinputbreakertotheUPSwasdoneandtheunitdidnottriporgoonbattery.NonoticeableeffectwasseenontheUPSoutput.3.)EachinvertertripcircuitexceptDCOVwastestedandeachfunctionedasdesigned.4.)Fasttransienttests:Withtheoldbatteriesstillinstalledavoltageinterruptionof100-150msecdurationwasgiventotheACinputtotheDClogicofUPS1C.TheDClogicwasinitiallyat19.86VDC.Theunittripped3outof4times.ThiswasdonefirstwiththeloadsonmaintenancesupplyandthenalsowiththeloadsonUPSpower.Withthenewbatteriesinstalledtherewasnotripwhenthefasttransienttestwasperformed25successivetimes.TherewerenotripsbutarepeatedSCRshortalarmoccurredwhichisindicativeofnoisespikeswithintheunit.

page25.)TheK-5relaydropoutwasrecordedandwasfoundtobebelowthetrippointoftheDClogicpower.6.)Normaltransfersweredone,UPStomaintenanceandmaintenancetoUPS,withdeadbatteriesandtherewerenotripsoftheUPS.ThemaintenancesupplywasopenedwiththeUPSfeedingtheloadsandnoUPStripsoccurred.CONCLUSIONThistest.provesthattheDClogicpowerisfedbytheBphasemaintenancepower,andthatitissusceptibletovoltagetransientsonthemaintenancesupply.Itmaybesusceptibletoothertransientsaswellbecauseitisdirectlytiedtomaintenancesupply.ThetestDOESNOTprovethelevelofsusceptibility,thatis,itdoesnotprovethatthetransientwasofanysetvoltageorduration.Thetestimpliesthatthebatteriesmayhavemitigatedthetripbutisnotconclusive.Eachtripcircuitwastestedsuccessfullysonofailuretoanyoftheseoccurredthatcausedthetrip.Thefastopen/closeofthenormalACinputbreakerprovesthattheunit.wouldwithstandanACinputtransientwithoutfailureorwithoutgoingonbatterypower.

NumericalResults:1.)FastTransientTests-a.)Withexistinbatteries-page32.)Withloadsonmaintenance:At19.86VDC(90.0VAC)-~vari(150msec.)At19.86VDC(120VAC)-~tri(150msec.)WithloadsonUPSpower:2Tries,1~tri(200msec.)b.)Withnewbatteries-1.)Approx.20.0VDC-25times,~notri.(100msec.)2.)TheDClogictripsat<16.9VDC.(with84.59VAConinput).3.)K-5relaydropout-45VACK-5relaypickup-**notrecorded4.)Thefollowingtripstestsweredone:a.)OV/UVb.)ACUVc.)ACOVd.)DCUVe.)Frequencyfailf.)LogicFailureg.)Powersupplyfailureh.)Clockfailure5.)Theinternalbatteryvoltagewasmeasured:Positive-+0.6Negative-+0.04

5.)Xndividualcellvoltages:page41.)2.)3.)4.)5.)6.)OldBatter,Voltae1.192.482.240'70.791.78NewBatterVoltae6.106.076.106.096.106.12 lg1 3.OG%RA45~RF6VK%K:,>>~8r>>QiQsMECHANIC%.MAINTENANCEpRQEINSTRUMENTATION&.CONTROLQLQsCOMPUTERQi4SlP.QsSECURITYI&CQil$FIREQiQsMETER&TESTQiQsOTHEROFNORII'".SEMEN&ENCEtgNECESSARY{(7DAYS)QsASTIMEPERMITS(>7DAYS)QINEXTUNITOUTAGENEXTREFUELINGOUTAGEIsv.CSOF.-Q1Q1DSfTEZ."COIIiIPONENTNVh&ER/>>>>16.SAFETYCLASSQSRQ0QNSR18.EQE3YES20&hSlHECOMPONENTQYES@NO21CLEANNESSCLASS9.EQUIPMENTTITLEMPSF2mu'C~~~10.FAILUREDESCRIPTIONANDLOCATION11.NPRDS.SYMPTOMCODEEfDESCRIPTIONJEs>12.ORIGINATOR13.APPROVEDAF/'ocCr/&'Jn4~vaC./'/emESSC.~WC.vo.JvCATE~/~r/~+DATE~M/~~/~C14.W.FLRECEIVEi~>>16.QOANOTIFIEDBYSUPV.DATE'/DATE//~/TINS'"'"OA'NAME/AIQZ&EQUIREQ17.ACCOUNT22.QAREVIEW~PpQYrr"~III'I'IO'ATE/~4~23.INSPECTION'REOU>>IREOOYES~rrIFIITSTAGEDBYO'AT~~/~~/QPAMSRQdSDUes&UORWGDMARKUPQRNPQNA~~~.ASSIGNEDTO29.NOTIFICATION&QCCATE'-/'IME"/T>>rir./~/~TIMC5~C22.CORRECTIVEACTION29.NPROSCORIIEeriv&IET'PEN'C"-"-'bus'CriiPTNEIS-"-"WQm>v4rrEST>>29.CAUSEOFFAILURE30.NPRO&"EKkSESCRIPTICr(AUIII'f>>~>>34.SUPERVISORREVIEWBY36.WORKACCEPTEDBYOA31.ATTACHMENTS0MATISSUES.5PR8CEOURECHECKLfSTSQINSPECTS@.DLASQ32.MARKUPNO'S/PRWP'HAS'/~~/QCfRNQ'.Q'I>>SCRSNO'3.CORRECTIVEACTIONCOMPLETEDEY+~Ur+I--':OATFE~/~n-NADATE~36.PMTREVIEWBYPMTPROCEDURENO'S.48.PMTCOMPLETEVERIFIEDBY39.ACCEPTEDBYQASSS/SSS:0:4U&k"'-'/042sSTTESTREPORT0NQTREOUIRE00NADATE0SSS0SUPV.DATE/40.NPRDS0NASYSTEMCQOE41.INDEXEDBYDOC.CONT.INfT.rSTMSOI.kVMIKIISS~32OSSA044S I~

~~1ATTACHHENT1PULNtse44a.rrs.aeopace1of2SyahmComponentssbetnspecurd2,t/'p~/S-wPf/c-~Section1~WontRequestNumb<<~P/9o5'gWilthesystemrccmponentbe'operable'erTechnicalSpeciicaticnsduringtroubfeshootingeEYesQNoBriefdeacnpthnofboubleshootingwork5beperformedindudingprecautions,Imitationsorboundaryrestrictionsimposed.t//oCr/~0Sc/tcore.o8IMca~>>5~uo)ACtorov~uu/tgl~Cizo>>.opJ>vhC/rrPJr'C5)~~c/>>l/Qretgut.goo3'tPj~k'Woor~tCr/$-3ot-V/7~~~5/pq/n/oowrier~Sv/CTo~ro~lovrrv.~/mnt4i<~rrn/z~r7Cw~~S'I'Co~S~//C<5'c.AC.MO~c~2id'4oorsZ&27Z.r~r/a,P~~74//a/o~wcr')hc>>~r4loirr&Mi>/rz~/re9o///s/srindependentVerN<<Sgnare(.~cDaceDaceZr~Page8AP-S.I.2'ev02

~~)I ATTACHHENT1<Cont)~~has%DrN)~SeCtlon2~P2ot2ROxxdofMansTaken(SetaredmatingtramPtemredTroubleshootingnadySSS.)~Peu~r"-6-o~>o'$8-XO/FMMPP~r-i$~uSJ4w4'~-iu'MCow~cim/~~cWLv4/3/59=@Weir.e>/r~)rt~i.DA~c~/ayJg/.ClSystemaComponentwas'htt'AsFound'age9At-5.4.2Rev02 h

On8/15/91,troubleshootingwasdoneon2VBB-UPS1Casfollows:a.)b.)WiththeunitonnormalACwithDCandmaintenanceavailableanOV/UVsignalwasgeneratedbyopeningtheCB-3toggleswitch.Theunittransferredtomaintenancewithoutgeneratingatripsignal.ThisverifiesthatanoutputOV/UVwillnotcauseatripsignaltobegenerated.WithUPS1ConmaintenanceA27-S1wasopenedwithA27-CB1closed.ThelogicpowerfortheUPSwentdeadanditshouldn'thave.ThisisevidencethattheUPSinternalbatteriesaredead.WhentheUPSisdowntheinternallogicisfedbyarinternalpowersupplywithinternalbatterybackup.WhentheisUPSonlineanauctioneeringcircuitshouldpowerthelogic.Thisauctioneeringcircuitwasverifiedtobeworkingbyde-energizingthemaintenancesupplywiththeUPSrunning.Whenthiswasdonethelogicremainedpoweredup.Althoughthisisadeficiencyitwouldnothavecontributedtotheincidentbecausetheauctioneeringcircuitisworking.(WR'sarewrittentoreplaceallUPSinternalbatteries).c.)d.)WithallpowersourcesavailablethemaintenancesupplyfeedwasopenedtoverifythesyncmonitorcircuittotheUPS.Whenthebreakerwasopenedthevoltagedifferencealarmcameinandtheunitsyncindicationwentout.Onreclosingthemaintenancefeedittook10-15secondsfortheUPStore-synctothemaintenancesupply.WiththeloadonUPSwiththeUPSrunningonnormalACandtheDCbreakerclosedthemaintenancesupplyfeedwasde-energized.ThenormalACwasfeedwasopened.TheunitranatfullloadoffDC(500amps)for10-15minuteswithnoalarmsandnotrips.e.)PutunitonmaintenancesupplywithUPSrunningoffnormalACandCB-2(DC)open.OpenedthelogicpowerandverifiedthatCB-1willtrip.g)h.)Putoutputonmaintenancesupply.WithunitonnormalACandwithDCbreakeravailable,theACoutputwasloweredontheUPS.TheACundervoltage(ACUV)alarmsignalwasgeneratedat182vacandafterapproximately10secondstheunittripped.RestoredunittonormalACwithDCavailable,loadonmaintenance.Raisedoutputvoltageto220vacandtheACovervoltage(ACOV)tripoccurred.UnitwasagainrestoredwithunitonnormalACandDCavailable,loadonmaintenancesupply.LoweredtheDCundervoltage(DCUV)causedatripat93vdc.

i.)DuetothepossibilityofdamagetotheunittheDCOV(DCovervoltagewasnotverified.Itwasdeterminedalsothatthisconditionwasveryunlikelytohaveoccurred.j.)TheUPSwasinitsnormalconfigurationonnormalACwithDCandmaintenanceavailable.TheupstreamACinputbreakerwasopenedandclosedthreetimesasrapidly'spossible.Thiscausedanaudible"bump"totheinputtransformeroninrushcurrentbuttheunitdidnottransfertoDCnordidittransfertomaintenance.Thisverifiesthatunitcanmaintaintheloadunderinputtransients.Thisdoesnotnecessarilysimulatetheactualtransienttheunithadseen.

Pfrel/1IWRf190938,troubleshootingplanresults,p~51.)2.)UPS1Cvisuallyinspected.WiththeunitrunningonnormalpowertheK-5(logicpowersupplyinput)relayisenergized.3.)OpenedthemaintenancesupplyfeedtoUPS1C(CB-1,2VBB-XD501).K-5relayde-energized.ThiswasverifiedbyopeningandclosingCB-1on2VBB-XD501whilewatchingtheK-5relay.ReadtheoutputparamaterswithUPS1Cmaintenancesupplyopen:Voltage:Phase1toGND:118.5vacPhase2toGND:119.5vacPhase3toGND:121.4vacFrequency:DCLinkVoltage:59.91cycles140.08vdc4.)ReclosedthemaintenancesupplyandtheK-5relayre-energized.ThisisverificationthatK-5preferstobepoweredfromthemaintenancesupplyfeedanytimethatpowersourceisavailabletotheunit.TheSCRshortlightilluminatedwhenthemaintenancefeedwasrestoredtoUPS1C.5.)Afterashortdurationwiththeunitrunningnormallyandnotestevolutionsbeingdonetheunittripped(CB-1trip,CB-2trip,CB-3opened)andtheunittransferredtomaintenance.Thefollowingalarmswereindicated:1.)FREQUENCYFAIL(onA13A21)2.)MODULETRIP3.)INVERTEROVERTEMP4.)INVERTERLOGIC5.)SCRSHORTNOTE:Thistrip,though,notpurposelyinitiatedatthistime,isindicationthatatripsignaltotheA13A21cardwillinitiatealogictripandtransfertheunittomaintenancesuccessfully.6.)PushedtheresetontheA13A21card,SCRshortclearedbutnootheralarms.7.)OpenedtheP6plugonCB-48.)TurnedoffA27-CB1andA27-Slkillinglogicpower.9.)TurnedonA27-CB1andA27-S1(Thiswasdonetoattempttoresetthelogic.)10.)Thefollowingalarmscamebackin:1.)FREQUENCYFAIL(A13A21)2.)MODULETRIP3.)INVERTEROVERTEMP4.)INVERTERLOGICNOTE:Thefactthatthealarmswerereinitiatedwhenthelogicwasre-energizedisindicationthetripstayslatchedineveniflogicpowerislost.11.)UnlatchedthemotoroperatoroffCB-$.12.)Re-installedtheP6plugtoCB-4.Theoperatordidnot

repositionit'.self.13.)Resetthemotoroperator~f50of/7/~gbackonCB-4y~a~n~~u8/~8/~rO/q/~

V1, Reprintofpages7-13ofTroubleshootingPlan-WR8190938~18,1991l.OpenP6Block.2.OpenlogicpowertoUPS1C.3.Resetovertempswitch.(NOTE:ITISNOTDEFINITETHATITWASTRIPPED.)ResetovertempswitchonLEGk4.4.PutA13A20onextenderboard.5.Restorelogicpowerandtracefreq.failsignalthroughA13A20.Replacechipsasrequired.Whenlogicwasrestored-alllightswererestored.6.Restorecardinslot.7.Restorelogicpower.Attemptedtorestartunit-closedCB1,pushedmoduleonandmoduletripped-freq,failedalarm,overtemp,moduletrip,Inverterlogicalarms.Noovertempswitchespickedup(testeachwithfluke).SeeStep4a(nextpage) 1I WR8190938TROUBLESHOOTSHEETPage8August19,19914a.Turnofflogic.,4b.PutA13A20onextender.4c.Resetlogicpower-moduleonlighton4d.PINS16and46onA13A20okayStoppedtestingtorepairA13A20board.16-low46-high

WR¹190938TROUBLESHOOTSHEETPage9August19,1991Chips¹1and¹4(UlandU4)ReplacedonA13A20.1~OpenP6block.2.OpenlogicpowertoUPS1C.3.PutA13A20onextenderboard.5.Restorelogicpower.NoalarmfoundA13A20chipsUlandU4coldtotouch6.Ifalarmsreset,closeCB1,verifynoalarms.CB1closed,noalarmsfoundModuleonpushed,noalarmswithunitrunningCB2closed-unitrunningnormalUnitturnedoff,lockturnedoffPutA13A20intoslot-normal7.InstallvariaconB-phaseACinputtologicpowersupply.InstallGNDtoinputofA27-F3(term¹1)HottoinputofA27-F4(term¹1)RemoveA27-F4putVARIACoutputonA27-F4output(term¹2)installoscilloscopeACinput-Lead¹243DC(+)LogicPower-¹2007a.Turnlogicpoweronrestartunit:ClosedA27-Slcontrolbatt.discharge,logictripcameon.ClosedA27-CB1alarmsclearClosedCB1Pushedmoduleon-unitrunning;noalarmsClosedCB2

WR8190938TROUBLESHOOTSHEETPage10August19,1991SteadyState-118.13VACtopowersupplies19.86VDC(+)DClogicLoweredVACtoDCP.S.-at96VAC,DCvoltsstartstodrop-at84.59VAC,DCvoltswentto16.9VDCunittripped.Alarms-Powersupply,failedinverterlogicmoduletrip(recorded(alarms)2hourslaterfrommemory)At84.59VACunittrippedDCwentto16.9VDCAlarms-powersupplyfail,logictrip,moduletrip12.13.14.13a.WithunittrippedopenA27-CB1(BatteryBreaker)loweredACinputtopowersuppliesAt45.0AC,K-5dropped-seenbylogic(DC)powerdropping-itdroppedtoapproximatelyzero(K-5relaydropsoutat45VAC)

WR@190938TROUBLESHOOTSHEETPage11August19,199114.Resetlogic(off)-A27-CBlandA27-Slopen.15.Resetvariacto120vac.16.Turnedlogicoff.17,CloseCB1.18.Turneduniton.19.ClosedCB2.20.Unitrunning-noalarms(loadonMaint.)21.Openswitchonvariacwithvoltageat-90.00vac-openedandclosedfor150msec(Trace7)22.UnittrippedAlarms-powersupplyfailedlogictripmoduletripSCRshort23.Resetlogicandresetunit-CBlclosedCB2closedUnitrunningVariacresetto120VAC.Openswitchonvariacfor100msec.-openandclosedUnittripped,CB1openCB2openModuletripLogictrip(Trace8)24.RestartedunitCB1closedCB2closedlogicreset-noalarmsPutoutputonUPSPowerAttemptedtotransfertoUPSpower-P6Blockwasopen-wouldnottransfer25.TurnunitOff,resetlogic,turnlogiconPutCB-4Operator(screwmotor)toonPutP6blockbackin

WR¹190938TROUBLESHOOTSHEETPage12August19,199126.OpenCB1on2VBB-XD501.Nologictrip.1.Maintenanceoutoflimits(clears)2.Voltagedifference(locks)-K-5relayswappedtoUPSpower27.TurnMaint.backon.Allalarmclearaftertimedelay.28.Openswitchonvariac-sustained.Notrip,hornsounded,K-5relaytransfers.29.Flippedswitchonvariac(offandon)ACvoltagedownto58VACTurnedswitchoff-unittripped-nolights-fuseinVariacisstillgood(foundlooseleadonfluke-notsecureinplug)30.Restartedunit-legfuseblown,alarm,impulsetrip,Inverterfuseleg¹5fusebad31.Logicoff,CB1openedCB2opened32.ReplacedLeg¹5,fuseunitrestarted,transferredtoUPSpower,allalarmsclear.

WR¹190938TROUBLESHOOTSHEETPage13August19,199133.Open/Closevariacswitch-notripSCRshortalarm(200msec)Open/Closevariacswitch-unittrip,powersupplyfail,logic(inverter)moduletrip-possibly200msec(-tracecannotberead)34.RestoreAClogicasfollows:RemoveleadfromA27-F3(team¹1)-variacleadRemoveleadfromA27-F4(team¹1)-variacleadRemoveleadfromA27-F4(team¹2)-variacleadRe-installA27-F4fuse3S.Unitleftoff,loadonmaintenance

WR¹190938TROUBLESHOOTSHEETPage14%gust20,19911.)MeasureeachbatterypriortoinstallinginUPS1C:1.)6.102.)6.073.)6.104.)6.095.)6.106.)6.122.)UsingaleadsliftedlogreplacethecontrolbatteriesinUPSlC.3.)MeasurebatteryvoltageoneachbatteryremovedfromUPS1C:1.)1.192.)2.483.)4.)0.175.)0.796.)1.784.)InstallavariaconB-phase,ACinputtologicpowersupplyasfollows:a.)AttachvariacinputgroundleadtoinputsideofA27-F3(term¹1).b.)AttachvariacinputhotleadtoinputsideofA27-F4(term¹1).c.)RemoveFuseA27-F4.d.)AttachvariacoutputleadontheoutputsideofA27-F4(term¹2).5.)InstallOscilloscopeleadsasfollows:a.)oneinputtoscopeonA27,lead¹243b.)otherinputtoscopeonA27,lead¹200(+ofDClogic)

WR@190938TROUBLESHOOTSHEETPage15August20,19916.)Setvariacforapproximately120vac.7.)RestartUPS1CandputloadonUPSpower,CB-3closed.8.)SlowlydecreaseACvoltagetotheDClogicpowersupplies.At91.95VAC,DClogicpowerdroppedto19.15VDCAtapprox.42.94,DClogicrecoveryto18.10VDC(K-5transferredtoUPS,Notrip,Hornsounded)9.)VerifyK-5relaytransferstoUPSpower.At42.94DCdroppedtoapproximately17.8or17.9.TurnVACto24.0VAC(K-5pulledinfull)logicwentto19.76VDC10.)RestartUPS1C,asrequired,andputloadonUPSpower.N/APutvariacto120VAC-peroscilloscopeK-5energized-powersupplyonmaint.11.)Flipswitchonvariacrapidlyoffthenon.12.)Performtheoperationinstep11multipletimesandrecordwhethertripsofunitoccur.(Seepage15a)13.)ShuttingdownunitopenedCB2openedCBlAlarms-powersynctripUV/OVtransferInverterlogicNomoduletripa.)OpenedA27-S1andA27-CBlClosedA27-SlandA27-CB1-alarmsstillinOpenedA27-S1andA27-CBl

WR¹190938TROUBLESHOOTSHEETPage15aAugust20,1991SEQUENCENO.35678910ll1213141516171819202122232425TIME150-200msecTRIPnononononononononononononononononononononononononoREMARKSSCRshortcameinSCRshortSCRshortSCRshortSCRshortACVoltdipto81VACSCRSCRSCRNoAlarmSCRshortSCRshortSCRSCRSCRSCRSCRSCRSCRSCRSCRSCR I>>4 WR¹190938TROUBLESHOOTSHEETPage16~pet20,199114.)Shutdownunitandremovevariacandoscilliscopeasfollows:a.)RemovevariacinputgroundleadtoinputsideofA27-F3(term¹1).b.)RemovevariacinputhotleadtoinputsideofA27-F4(term¹1).c.)RemovevariacoutputleadontheoutputsideofA27-F4(term¹2).d.)RemoveFuseA27-F4.e.)RemoveoscilliscopeleadonA27,lead¹243.f.)RemoveoscilliscopeleadonA27,lead¹200(+ofDClogic).g.)InstalltheA13A21circuitcardontheextendercard.NOTED:FuseA27-F4leftout-reinstalled.

WR@190938TROUBLESHOOTSHEETPage17August21,1991

WR8190938'ROUBLESHOOTSHEETPage18August21,19911.)RepairtheA13A21boardinUPS1C.2.)ReinstallA13A21boardinUPS1Contheextenderboard.3.)AttacharecordingdeviceontheoutputoftheUPSandthemaintenanceoutputandpreparetorecordtransfer.4.)TurnlogicpowerontoUPS1C.5.)MeasurevoltageonA27-F4,term.81referencedtophaseA,B,andCofthemaintenancesupply:A27-F4toPhaseA:212VACA27-F4toPhaseB;0.2VACA27-F4toPhaseC:211VAC(ThisverifiesDCpowersuppliesfedbyB-Phase)6.)LiftmotoroperatoronCB-4.6a.)InstallP-6block.7.)ResetmotoroperatoronCB-4.8.)RestartUPS1CandputloadonUPSpower,CB-3closed.9.)VerifynoalarmsarepresentinUPS1C.

1 WR8190938TROUBLESHOOTSHEETPage19August21,199110.)Initiateeachofthefollowingtripsandrecordthealarmsfound.Recordatleastonetrip-transfertomaintenance.a.)Frequencyfailure-nottestednow-whenA13A20chipfailed(earlier)fedfrequencyfailuretoA13A21verifyinglogicb.)Logicfailure-tookpinlow-unitdidnottrip-possibleprobenotonground-secondtimetookpin6low-unittripped-logicfail,fanfail,moduletrip,invertedlogicalarmTookboardA13A21offcardcageextender-troubleshootcircuit.Alarmclearedbyreinsertingcard.Unitrestarting,loadonUPS.c.)Clockfailed-tookpin¹32low,unittripped-logic(inverter)alarmclockfailed,moduletrip16.)RestoreA13A21tothecardcageslot.17.)RestartunitandputloadsonUPSpower.

2VBB-UPS1DTESTSUMMARYpage1Purpose:ToprovethattheDClogicpowerfortheExideUPSispoweredfromtheB-phasemaintenancesupplyandthatifatransientoccursonthemaintenancesupplyitcaneffecttheDClogicsuchthatitwilltriptheunit.Thistestisdonewiththeoldinternallogicbatteriesandthenrepeatedwithnewones.TheK-5pickupanddropoutvoltagesandtheDCtrip-pointoftheDClogicwillberecorded.ResultsSummary:1.)ItwasverifiedthattheDClogicpowersuppliesarefedfromtheB-phasemaintenancesupply.2.)Fasttransienttests:Withtheoldbatteriesstillinstalledavoltageinterruptionof100-150msecdurationwasgiventotheACinputtotheDClogicofUPS1D.TheDClogicwasat,20.9VDC.Theunitwouldnottrip.TheACinputvoltagetotheDClogicwasthenreducedsuchthattheDClogicwasat20.0volts.WhenthetestwasperformedwiththeDClogicpowerat20.0VDCtheunittripped.ThiswasdonefirstwiththeloadsonmaintenancesupplyandthenalsowiththeloadsonUPSpower.WiththenewbatteriesinstalledtherewasnotripwhenthefasttransienttestwasperformedthoughtherewassignificanthitsshownontheDC.logicpowerbusasseenbytheoscilloscope.3.)TheK-5relaydropoutandpickupvoltageswererecordedandtheywerefoundtobebelowthetrippointoftheDClogicpower..4.)Normaltransfersweredone,UPStomaintenanceandmaintenancetoUPS,withdeadbatteriesandtherewerenotripsoftheUPS.ThemaintenancesupplywasopenedwiththeUPSfeedingtheloadsandnoUPStripsoccurred.

page2CONCLUSIONThistestprovesthattheDClogicpowerisfedbytheBphasemaintenancepowerandthatitissusceptibletovoltagetransientsonthemaintenancesupply.Itmaybesusceptibletoothertransientsaswellbecauseitisdirectlytiedtomaintenancesupply.ThetestDOESNOTprovethelevelofsusceptibility,thatis,itdoesnotprovethatthetransientwasofanysetvoltageorduration.Thetestimpliesthatthebatteriesmayhavemitigatedthetripbutthatisnotconclusive.

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NumericalResults:1.)FastTransientTestsa.)Withexistinbatteries-page3Withloadsonmaintenance:At20e9VDC-fivetries,notrips.At20.7VDC-onetry,one~tri.(150msec.)2.)WithloadsonUPSpower:At20.06VDC-one~tri.(100msec.)Ib.)Withnewbatteries1.)At20.05VDC-Fivetries,~notris.-noticeableDChitoneachtransient.J2.)TheDClogictripsat<17.3VDC.(with84.5VAConinput).3.)K-5relaydropout-42VDCK-5relaypickup-55VDC4.)Theinternalbatteryvoltagewasmeasured:Positive-+0.6Negative-+0.14(thenegativebatterysetwasactuallyslightlypositive).5.)Individualcellvoltages:OldBatterVoltaeNewBatterVoltae2.)3.).254.5701.03.076.106.066.106.105.)1.176.13

6.)1.396.09

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WR¹190945TROUBLESHOOTINGPLANPage3August21,19911.)PlacetheloadsoffUPS1Donmaintenancepower.Whenunitputtomaintenance,CB-4failedtoclose.Liftedoperator-Bkr.closed(partialfalsesignaltoCB-4).(LaterfoundtobeadjustmentofCB-4operator.)2.)OpenCB-2,CB-1,A27-S1.3.)MeasureandrecordDClogicpower-(thisisbatteryvoltage)(+20)=+.06V(-20)=+.14V(*verified+.14volts)4.)OpenA27-CBl.5.)MeasurevoltageonA27-F4,term.¹1referencedtophaseA,BandCofthemaintenancesupply:A27-F4toPhaseA:A27-F4toPhaseB:A27-F4toPhaseC:203.1VAC0.0VAC(PhaseBtoDCpowersupplies)202.4VAC6.)InstallavariaconB-phaseACinputtologicpowersupplyasfollows:a.)AttachvariacoutputgroundleadtoinputsideofA27-F3(term¹1).b.)AttachvariacinputhotleadtoinputsideofA27-F4(term¹1).c.)RemoveFuseA27-F4.d.)AttachvariacoutputleadontheoutputsideofA27-F4(term¹2).7.)InstallOscilloscopeleadsasfollows:a.)oneinputtoscopeonA27,lead¹243b.)otherinputtoscopeonA27,lead¹200(+ofDClogic) 4 WR8190945TROUBLESHOOTINGPLANPage4August21,19918.)Setvariacforapproximately120VAC.9.)LiftmotoroperatoronCB-4.10.)TurnlogicpowerontoUPSlD.11.)ResetmotoroperatoronCB-4.12.)RestartUPS1DandputloadonUPSpower,CB-3closed.13.)SlowlydecreaseACvoltagetotheDClogicpowersupplies.Start20.88VDCat98.13VACDC,powersupplywentdown20.59VDC14.)RecordwhenDCvoltagestartstodrop-98.13VAC20.59VDC15.)Ifunittrips,recordvoltageattrippoint-84.5VAC17.3VDCUnittripped.CB-4failedtoclose-gotCB-4"ON"flag.Alarms-vo!tagedifference,maint.outoflimitsmoduletrip,inverterlogicalarm.Powersupplyfailed.16.)Ifunittrips,lowerACinputtoK-5relayuntilrelaydropsout.At56VACrelaychattered,8VDConlogicAt42VACrelayswapped-droppedPutresetbackup-At55relaystartedtopickupAt75VACpulledin17.)Restartunit,asrequired,andputtheloadonUPSpower.18.)Setvariacat120VAC.

WR45190945TROUBLESHOOTINGPLANPage5August21,199119.)Openandclosevariacswitchquickly.Recordiftripoccurs.~~,~r'-/.~i)iLippedonce-notrip,SCRshortalarm-150msec'(TraceO9)20.)Iftripdoesnotoccurattemptagain.2ndtry-ACdropsto119.5VAC,notrip(Trace@1)3rdtry-ACdropsto84.5vaconfluke,notrip(100msec)onoscilloscope-ACdropped136VAC,ACdropped2,3volts(from20.9VDCatstart)(see20aonnextpage)20a.)4thtry-notrip5thtry-setvariacto95.0VAC,VDCat18.6-unittripped.Powersupplyfailed(Priortoswitchingvariac)Putunitonmaintenance.Triedfasttripat20.00VDC-unittripped.21.)22.)23.)24.)25.)26.)27.)28.)MeasureeachnewbatterypriortoinstallinginUPS1D.1.)2.)3.)4)5.)6.)6.10VDC6.06VDC6.10VDC6.10VDC6.13VDC6.09VDC29.)Shutlogicpoweroff.Removeoscilloscopeleads.Removevariacleads.30.)InstallfuseF-4.31.)PutloadsonUPSpower.

WR8190945TROUBLESHOOTINGPLANPage6August21,1991*ANNOUNCELOSSOFLIGHTS1.)PlacetheloadsoffUPSlDonmaintenancepower.2.)OpentheP-6blockblockonCB-4.3.)OpenCB-2,CB-1,A27-S1,A27-CBl.4.)InstallavariaconB-phaseACinputtologicpowersupplyasfollows:a.)AttachvariacoutputgroundleadtoinputsideofA27-F3(term@1).b.)AttachvariacinputhotleadtoinputsideofA27-F4(term81).c.)RemoveFuseA27-F4.d.)AttachvariacoutputleadontheoutputsideofA27-F4(termk2).5.)InstallOscilloscopeleadsasfollows:a.)oneinputtoscopeonA27,lead8243b.)otherinputtoscopeonA27,lead@200(+ofDClogic)6.)Setvariacforapproximately120vac.7.)LiftmotoroperatoronCB-4.

WR8190945TROUBLESHOOTINGPLANPage7August21,19918.)ReinserttheP-6blockonCB-4.9.)TurnlogicpowerontoUPSlD.10.)ResetmotoroperatoronCB-4.11.)RestartUPSlDleavingloadsonmaintenancesupply.12.)Openandclosevariacswitchquickly.Recordiftripoccurs.AdjustvariacsuchthatDClogicpowerisat20.00VDCACat91.28VDCat20.07VSwitchtime-150msecAtunittripthefollowingalarmsobserved:nmCEeS)1.trip2.Inverterlogic3.SCRshort4.Powersupplyfailed21.)Restartunit,asrequiredandputloadsonUPS.*BreakerCB-2failedtoreset.BreakerreplacedperWR@177123.22.)OpenCB-1on2VBB-XD600andverifythatunitdoesnottrip.Unitdidnottrip.Thefollowingalarmswereobserved:1.VoltageDifference2.Maintenanceoutoflimits22.)WhileonUPSpowerwithoutmaintenanceavailablerecordthefollowing:'PSoutputvoltage:PhaseA;121.0VACPhaseB;120.0VACPhaseC:121.5VACDCLinkvoltage:140.7VDCUPSoutputFrequency:59.93HZACoutput24.)CloseCB-1on2VBB-XD600.

WR8190945TROUBLESHOOTINGPLANPage8August21,199125.)AdjustmotoroperatoronCB-4asrequired.Unabletoadjustatthistime.Restartunit,putloadonUPSpower-Lowerreostat(variac)voltsuntilDClogicis20.00voltsVDC-20.06VAC-100.23,Flippedvariacswitchonandoff,unittripped(100msec.)Alarms-moduletripinverterlogicpowersupplyfailed26.)TransferloadstoMaintenance.26.)ShutdownunitincludinglogicpowerandP-6block.27.)OpenAcinputbreaker,2NHS-MCC006,8-A.29.)UsingaleadsliftedlogreplacethecontrolbatteriesinUPS1D.BenchBatteryVoltageReadings-priortoinstallation1.)6.097VDC2.)6.063VDC3.)6.107VDC4.)6.101VDC5.)6.125VDC6.)6.090VDC30.)MeasurebatteryvoltageoneachbatteryremovedfromUPSlD:1.)2.)3.)4.)5.)6.).254VDC.570VDC1.03VDC.07VDC1.17VDC1.39VDC31.)Setvariacforapproximately120vac.32.)RestoreP-6blockonCB-4.33.)LiftmotoroperatoronCBA.

WR¹190945TROUBLESHOOTINGPLANPage9August21,199134.)TurnlogicpowerontoUPSlD.35.)ResetmotoroperatoronCB-4.36.)RestartUPS1DandputloadonUPSpower,CB-3closed.Lowervariacvoltageto99.03VACuntilDClogicvoltageisapproximately20.05VDC37.)Flipswitchonvariacrapidlyoffthenon.38.)Performtheoperationinstep11multipletimesandrecordwhethertripsofunitoccur.1.2.3.4,5.Notrip,100msecNotripNotripNotrip,100msec(noticeableDChit)Notrip,150msec(noticeableDChit)NoalarmsNoalarmsSCRshortalarmNoalarmsSCRshortalarm(Trace¹3)(Trace¹5)39.)Shutdownunitandremovevariacandoscilliscopeasfollows:a.)RemovevariacoutputgroundleadtoinputsideofA27-F3(term¹1).b.)RemovevariacinputhotleadtoinputsideofA27-F4(term¹1).c.)RemovevariacoutputleadontheoutputsideofA27-F4(term¹2).d.)REINSTALLFuseA27-F4.e.)RemoveoscilliscopeleadonA27,lead¹243.f.)RemoveoscilliscopeleadonA27,lead¹200(+ofDClogic).39a.)RestartunitandputloadsonUPSpower.

WR0190945TROUBLESHOOTINGPLANPage10August21,199140.)StaticswithcisoperatingasnotedbyobservationofstaticswitchlightoncontrolmoduleduringUPStomainttransfer.41.)MeasureB-phaseACinputvoltagetoDClogicpowersupplies118.34VACMeasureDClogicpowerwithunitonline(+2ov)(-2ov)20.78VDC-20.86VDC~42.)AdjustmotoroperatoronUPSlDUnabletoadjustCB-4,Maintenancesupplybreaker.CB-4requiresreplacement.Problemdeterminedtobethebreakerorthetransfermotoroperator.WR177124initiatedtoreplacebreakerCB-4.(-Breakerreplaced.)43.)Performtransfer-UPStomaintenanceRecordtransferwithvisicorder*NOTE:UPSoutputbreakerCB-3isstickingandrequiresreplacement.

2VBB-UPS1A1B1GTESTSUMMARYpage1Purpose:ToprovethattheDClogicpowerfortheExideUPSispoweredfromtheB-phasemaintenancesupply.TheK-5pickupanddropoutvoltagesandtheDCtrip-pointoftheDClogicwillberecordedforUPS1A,notforUPS1BandUPS1G.Theinternalbatterieswillbetestedandreplaced.ResultsSummary:1.)OnUPS1A,UPS1BandUPS1G,itwasverifiedthattheDClogicpowersuppliesarefedfromtheB-phasemaintenancesupply.2.)TheK-5relaydropoutandpickupvoltageswererecordedforUPS1AandtheywerefoundtobebelowthetrippointoftheDClogicpower.3.)OnUPS1A,UPS1B,UPS1G,themaintenancesupplywasopenedwiththeUPSfeedingtheloadsandnoUPStripsoccurred.4.)OnUPS1A,UPS1BandUPS1G,thebatterieswerereplaced.CONCLUSIONThistestprovesthattheDClogicpowerisfedbytheBphasemaintenancepower.Itprovesthattheinternalbatterieswereeffectivelydead.ForUPS1AitprovesthatonaslowtransientthattheDClogicpowerwilldropoutbeforetheK-5relaywilltransfertoUPSpower.

I NumericalResults:page21.)TheUPS1ADClogictripsat(16.7VDC.(with.75.6VAConinput).2.)UPS1A:K-5relaydropout-47VDCK-5relaypickup-52VDC4.)Theinternalbatteryvoltagewasmeasured:UPS1A:UPS1B:UPS1G:PositiveNegativePositiveNegativePositiveNegative0.546.218.30.69

WR¹162319TROUBLESHOOTSHEETPage3August23,19911.)PlacetheloadsoffUPSlAonmaintenancepower.2.)PulltheP-6blocktoCB-43.)OpenCB-2,CB-l,A27-S1.4.)MeasureandrecordDClogicpower-(thisisbatteryvoltage)+20VDCBatt.-20VDCBatt.+0.70VDC-1.15VDC5.)OpenA27-CB1.6.)InstallavariaconB-phaseACinputtologicpowersupplyasfollows:a.)AttachvariacoutputgroundleadtoinputsideofA27-F3(term¹1).b.)AttachvariacinputhotleadtoinputsideofA27-F4(term¹1).c.)RemoveFuseA27-F4.d.)AttachvariacoutputleadontheoutputsideofA27-F4(term¹2).7.)MeasurevoltageonA27-F4,term.¹1referencedtophaseA,BandCofthemaintenancesupply:A27-F4toPhaseA:A27-F4toPhaseB:A27-F4toPhaseC:206VAC0VAC208VAC

WR¹162319TROUBLESHOOTSHEETPage4August23,19918.)Setvariacforapproximately120vac.9.)TurnlogicpowerontoUPS1A.10,)SlowlydecreaseACvoltagetotheDClogicpowersupplies.120VAC=21.08VDC11.)RecordwhenDCvoltagestartstodrop-92.42VAC21.05VDCLogictrip75.60VACPwrSupplyfailed16.70VDC12.)LowerACinputtoK-5relayuntilrelaydropsoutandpickup.47VACdropout52VACpickupeDONOTPROCEEDWI'I'HOUTNRCAPPROVALReceived13:158/23/9113.)Shutdownunitandremovevariacasfollows:a.)RemovevariacoutputgroundleadtoinputsideofA27-F3(term¹1).b.)RemovevariacinputhotleadtoinputsideofA27-F4(term¹1).'.)RemovevariacoutputleadontheoutputsideofA27-F4(term¹2).d,)REINSTALLFuseA27-F4.14.)RepairUPS1A.**CHARGERSUPPLYREPAIRONLY**TroubleshotUPSlA-noproblemfound.Suspectweakbreakerir.VBB-PNL301(Bkr¹1)tripsattime-WR¹195051writtentoreplace

WR¹162319TROUBLESHOOTSHEETPage5August23,199115.)Restartunit,asrequired,andputtheloadonUPSpower.16.)OpenCB-1on2VBB-XD500andverifythatunitdoesnottrip.UnitdidnottropVoltagedifferencealarmMaintoutoflimitalarm17.)WhileonUPSpowerwithoutmaintenanceavailablerecordthefollowing:UPSoutputvoltage:PhaseA:PhaseB:PhaseC:DCLinkvoltage:(asfound)135VDC(asleft)140.0VDCUPSoutputFrequency:59.85Hz118.8VAC123.0VAC120.2VACNOTE:WR¹154535writtenon5/10/91previousproblem18.)'loseCB-1on2VBB-XD600.19.)TransferloadstoMaintenance.20.)OpenP-6blockonCB-4.21.)Shutdownunitincludinglogicpower.22.)OpenACinputbreaker,2VBS-PNL301,l.23.)MeasureeachnewbatterypriortoinstallinginUPSlA.1.)2.)3.)4.)5.)6.)6.08VDC6.09VDC6.10VDC6.12VDC6.13VDC6.14VDC

WR8162319TROUBLESHOOTSHEETPage6August23,199124.)UsingaleadsliftedlogreplacethecontrolbatteriesinUPS1A.25.)MeasurebatteryvoltageoneachbatteryremovedfromUPS1A:1.)2.)3.)4.)5.)6.)6.31VDC5.29VDC4.92VDC2.64VDC6.46VDC5.54VDC26.)LiftmotoroperatoronCB-4.27.)ReistallP-6blockonCB-4.28.)TurnlogicpowerontoUPSlA.29.)ResetmotoroperatoronCB-4.30.)RestartUPS1AandputloadonUPSpower,CB-3closed.Supplybreakerdidnottrip.

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WRg160944,troubleshootingplan,1.)PlacetheloadsoffUPS1Bonmaintenance*Visua1Ip'erify.thatthestaticswitchpage3(8/26/91)poweroperates.2.)PulltheP-6blocktoCB-43.)OpenCB-2,CB-1,A27-S1.4.)MeasureandrecordDClogicpower-(thisisbatteryvoltage)5.)OpenA27-CB1.6.)MeasurevoltageonA27-F4,term.g1referencedtophaseA,BandCofthemaintenancesupply:.A27-F4toPhaseA:A27-F4toPhaseB:A27-F4toPhaseC:vh~00vH~7.)OpenACinputbreaker,2VBS-PNL301,2.8.)MeasureeachnewbatterypriortoinstallinginUPS1B.pic1.)<0)82-)6l<83)C.Ogq4)FOZ~-5~)f~pq)',9.)UsingaleadsliftedlogreplacethecontrolbatteriesinUPS1B.

page410.)MeasurebatteryvoltageoneachbatteryremovedfromUPS1B:11.)LiftmotoroperatoronCB-4.12.)ReinstallP-6blockonCB-4.13.)TurnlogicpowerontoUPS1B.14.)ResetmotoroperatoronCB-4.()<(15.)RestartUPS1BandputloadonUPSpower,CB-3closed.III16~)@X7.)WithloadsonUPSpower,openA27-SlandverifynoCONTROLBATTERYDISCHARGEalarmoccurs.C,~,wNeA~~ca,~k;close$27-s1.,'>>~g)>>ear~18.)19.)WithloadsonUPSpoyeroenCgy1on2VBB-XD601.g(phys4)q(QT~WithloadsonUPSpowerwithoutm5inenanceavailablerecordthefollowing:~1g.lIvAc-ppUPSoutputvoltage:@<Llo,lvPcDCLinkvoltage:<4.3VJo.UPSoutputFrequency:

r 20.)CloseCB-1on2VBB-XD601.p4,l)ggVWcvA~~lqQVApage5

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A~4 WR¹160946TROUBLESHOOTSHEETPage3August24,19911.)PlacetheloadsoffUPS1Gonmaintenancepower."Visuallyverifythatthestaticswitchoperates.2.)PulltheP-6blocktoCB-43.)OpenCB-2,CB-1,A27-S1.Logicon-powersupplyfailed,DCOV,Maint.outoflimits,voltagediffoutputOV/UV,Inverterlogictrip.4.)MeasureandrecordDClogicpower-(thisisbatteryvoltage)-20VDCBatt.+20VDCBatt.+0.69VDC+18.3VDC5.)OpenA27-CB1.6.)MeasurevoltageonA27-F4,term.¹1referencedtophaseA,BandCofthemaintenancesupply:A27-F4toPhaseA:A27-F4toPhaseB:A27-F4toPhaseC:206.7VAC0.0VAC213.3VAC7.)OpenACinputbreaker,2VBS-PNL301,7.8.)MeasureeachnewbatterypriortoinstallinginUPS1G.1.)6.086VDC2.)6.096VDC3.)6.115VDC4.)6.167VDC5.)6.100VDC6.)6.098VDC

WR8160946TROUBLESHOOTSHEETPage4August24,19919.)UsingaleadsliftedlogreplacethecontrolbatteriesinUPS1G.Lead256to+20VDCpowersupplyhadburntlog-screwwasloose;otherscrewsweretight,10.)MeasurebatteryvoltageoneachbatteryremovedfromUPSlG:1.)2.)3.)4.)5,)6.)+6.414VDC+6.370VDC+3.067VDC+6.392VDC+2464VDC+5.518VDC11.)LiftmotoroperatoronCB-4.12.)ReistallP-6blockonCB-4.13.)TurnlogicpowerontoUPS1G.14.)ResetmotoroperatoronCB-4.15.)RestartUPS1GandputloadonUPSpower,CB-3closed.16.)WithloadsonUPSpower,openA27-SlandverynoCONTROLBATTERYDISCHARGEalarmoccurs.Noalarmsorlights.17.)CloseA27-S1.

WR@160946TROUBLESHOOTSHEETPage5August24,199118.)WithloadsonUPSpower,openCB-1on2VBB-XD602.Voltagedifference,Maintenanceoutoflimitsalarms.19.)WithloadsonUPSpowerwithoutmaintenanceavailablerecordthefollowing:UPSoutputvoltage:PhaseA:PhaseB:PhaseC:119.2VAC121,6VAC121.4VACDCLinkvoltage:139.58VDCUPSoutputFrequency:59.91Hz20.)CloseCB-1on2VBB-XD602.

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t VerifyP-6blockopenonCB-4page1Verifylogicpowerisoff:A27-CB1openA27-S1open*CAUTION:RIGHTSIDEBUSCONNECTIONSAREHOTINSTALLRUBBERBLANKETS.UnplugthefollowingplugsonA27:01.)A27P3~2.)A27P4"3.)A27P634.)A27P15.)A27P2~RemoveA27panfromunitModifyA27-K5relaywiringperEDCReinstalltheA27pan.Reinstallfollowingplugs:1.)A27P32.)A27P43.)A27P64.)A27P15.)A27P2CloseA27-S1(LeaveA27-CB1open).Verifymimiclightscomeononthefrontpanel.Alarmhornwillcomein.(Resetasnecessary)

page2PushrelayA27-K5inANDHOLD.Verifythatlightsgoout.ReleaserelayA27-K5andverifylightscomeon.I'4-'l+~-+i-3>~-'-'ILES)IRe-energizetheUPSonACpower,CB-2open,withloadsonmaintenance.Visuallyverifythat,theA27-KSrelayisenergized.OpenA27-CB1.OpentheA27-SlswitchwhilemonitoringA27-K5andverifythattheA27-K5relaydoesnotdropout.RecloseA27-S1andA27-CB1.LifttheCB-4motoroperator.InserttheP-6block.Reinsertthemotoroperator.CloseCB-2.TransferloadstoUPSpowerandverifymimiclightsarestillon.

page3Transferloadstomaintenancepowerandverifythatmimiclightsarestillon.PlacethetransfercontrolswitchintheAUTORESTARTposition.Theunitwillrestart(afteratimedealy)andretransfertoUpSpowers

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VerifyP-6blockopenonCB-4page1Verifylogicpowerisoff:A27-CB1openA27-S1open*CAUTION:RIGHTSIDEBUSCONNECTIONSAREHOTINSTALLRUBBERBLANKETS.UnplugthefollowingplugsonA27:1.)A27P3.2.)A27P4)3~)A27P6v4.)A27P1g5.)A27P2~RemoveA27panfromunit:ModifyA27-K5relaywiringperEDCReinstalltheA27pan.Reinstallfollowingplugs:1.)A27P32.)A27P43.)A27P64'A27P15.)A27P2CloseA27-S1(LeaveA27-CB1open).Verifymimiclightscomeononthefrontpanel.Alarmhornwillcomein.(Resetasnecessary)

page2PushrelayA27-K5inANDHOLD.Verifythatlightsgoout.'~~(ReleaserelayA27-K5andverifylightscomeon.i~Psi~w~c4ac,8~~JC.Mla-W'l'7Ckf/Re-energizetheUPSonACpower,CB-2open,withloadsonmaintenance.2ioas'onVisuallyverifythattheA27-K5relayisenergized.ORenA27-CB1.OpentheA27-S1switchwhilemonitoringA27-K5andverifythattheA27-K5relaydoesnotdropout.RecloseA27-BlandA27-CB1.LifttheCB-4motoroperator.pj)InserttheP-6block.Reinsertthemotoroperator.CloseCB-2.TransferloadstoUPSpowerandverifymimiclightsarestillon.

page3Transferloadstomaintenancepowerandverifythatmimiclights,arestillon.nPlacethetransfercontrolswitchintheAUTORESTARTposition.Theunitvillrestart(afteratimedealy)andretransfertoUPS(Qpower.

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GHuDNoDNoTESTAEatjfAmEVTSPAOCEOVAESStepNo.'sSteNo.'sStepHo.'sStepNo.'sOeferredQHAaVesQHoQMAQYesQHoQHAGYesQHoQHAaxesQHo0SatQSatQSatPerformedSyVerifiedBywGTestTestTEST5AcceptanceCriteriaYi~>/i//~z<~'>'p8Z~Si.r~~!~~i"rrig0Test0GYesHo(ri~~jd~/rcDTestDYesQHoDSatD'test0GYesGHoPreparedby.TechnicalReviewer:Reviewedby:nate:M/M/&~Date:X/W/+<'55S/S55'bate./'..GYesGHoQSat//GShellidSectionhot'dan/DocumentonWARemai'ks:......dwithWA..:..-:.:.:.Nnte:Thibelow.sljriaturi;.whenslined,."-declarestheequipaentoperableafthe'-;..-:::datehndtlmaspectfiid::.:-:.:'::~ji<ept0dOy:......55Sl)ete:'/./=,Time::'I

~lt 5GEE/EbsIVIIE>>/Lff)j/SIfUMOHAWKpO)NTr,8"l~l'195012',3.DEPARTMENTTO00WORK+QsELECTRICALMAINTENANCEQEQsMECHANICALMAINTENANCEQEQsINSTRUMENTATION&CONTROLQEQsCOMPUTERQUQsISIQEQsSECURITYI&CQEQsFIREQsQsMETER&TESTQEQsOTHER4,PRIORITYOFWORKQIEMERGENCYDDURGENT((/DAY)'NECESSARYI(7DAYS)QEASTIMEPERMITSI)7DAYS)QtNEXTUNITOUTAGENEXTREFUELINGOUTAGE5.UNIT:SII~2gt/ITE6.SYSTEMCODET,COMPONENTNUMBEIT~XVFlX-<lSI<r18.SAFETYCLASSQSRQQPf'NSR19.FQGYESPtJVO20.ASMECOMPONENT0YES@4021.CIEANNESSCLASS9.EQUIPMENTTITLE10.FAILUREDESCRIPTIONANDLOCATION\11.NPRDS.SYMPTOMCODE0DESCRIPTION-.-.:-"'..12.ORIGINATOR.""..l3.APPROVED~H.~DATE+/~/DATEM/~+/-Tl-14.W.R:RECEIVED.DATE/~/15.PROCEDURENOR/~~~///~,0REQUIRED.IB.tZOANO11FIEDBYSUPV."'DATE""'I~P""--IN-":O'A'NAME'7.ACCOUNT.7oII'I'II=.o(2ZQAREVIEW.QA2X'NSPECTIONREOUIRED'lYES~;"-e~4~I'I/~IWT-24:.STAGEDBV"-.--.DATE"'/-QPARTSEIPRQCEDUREGJORWGQMARKUPE3RWPONA~ASSIGNEDTO'"'OATEN'/@/Ll:2IE'NOTIRCATIONROCOATS"'~.TIME~CÃfATa>>i/Vi'.g~DATE'rI/~/~TIME/4SPI'.:27CORRECTIVEACTION28:NPRDSCORRECTIVE'ACTIONCOBE'~"DESCRIPTION'cW~~7t%~~Pr>>>>t.-'29.CAUSEOFFAIIURE~30.NPRDSFAILURECODEgK9OESSIIPTIONutQS-::-31.ATTACHMENTS0MATERIALISSUES32.MARKUPNO'S233.CORRECTIVEACTIONCOMPLETEDr34.SUPERVISORREVIEW.BY~o35.WORKACCEPTEDBYQAESPROCEDURECNECRUSTSOINSPECTIONREPORTSIDIASRWPNO'S//'CIRNQ'S~~NCRNO'ATER/~/DATE~/~/ZCQNADATE/7/36.PMTREVIEWBY37.PMTPROCEDURENO'S.~~~/PMTCOMPLETEVERIFIEDBY39.ACCEPTEDBYI/CIASSS/SSggUPV.DATEZ/~/~/0PEATTESTREPORT0NOTREOUIRGO0NADATE~/~/~0SSS0SUPV.DATE///s~r40.NPRDS0NASYSTEMCODEOTS.ISOINIT.wO'YA41.INDEXEDBYDOC.CONT.INIT.INSTSYMSOI.IEIPMIIEIISSS2OSSISO/2~SS l1 VerifyP-6blockopenonCB-4page1Verifylogicpowerisoff:A27-CB1open~gA27-S1open5'CAUTION:RIGHTSIDEBUSCONNECTIONS-AREHOTINSTALLRUBBERBLANKETS'nplugthefollowingplugsonA27:1'A27P32.)A27P43.)A27P64.)A27P5.)A27P2RemoveA27panfromunitModifyA27-K5relaywiringperEDCReinstall1.)2-)3.)4,)5.)followingplugs:~A27P3A27P4A27P6A27P1A27P2CloseA27-Sl(LeaveA27-CB1open).IVerifymimiclightscomeononthefrontpanel.Alarmhornwillcomein.(Resetasnecessary)

page2PushrelayA27-K5inANDHOLD.Verifythatlightsgoout.b.1ReleaserelayA27-K5andverifylightscomeon.LiftmotoroperatoronCB-4'lugP-6blockinonCB-4ReattachmotorertoronCB-4f'NcCIJgC.oC(4'~<4>4>.4(gf.~~aw4P.3~<40W~VwIlf75//PPc+c~,E~~a-egg'~~s/~~7~rh~4/~~"~~~F'e-energizetheUPS4(~M2i~iZ.4i.MCC(Cng.V-lZ~~(p(/u/~r~~(P'(7~)~6J/~-aW4(M~ugfVisuallyverifythattheA27-K5relayisenergized.+/MtfL7~4QIOpentheA27-S1switchwhilemonitoringA27-K5andverifythefollowing:a.)TheA27-K5relaydoesnotdropout.ReclosetheA27-S1switch.~~(o<>'7-~Pieggc4,-Yo/'~r<(ry~8-C@44(4'-4-<getCg-y4(~~(fO~WiththeUPSfeedingtheloadsopenA27-CB1.~~i/o~Transferloadsto'owerandverifymimiclightsarestillon.

f$C/9/page3w~i~~Transferloadsto~poverandverifythatmimiclights'arestillon.-~iy~s~i~C~,rmrL~a~>rau+i~lfkyvf53fl~PlaceA27-CB1on.~

lliL'4

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~os'A)NTNENgp,TFS]g.-TESTBEaUIAENENTS;...::PNTREQUIRED...~sMo~~'.TEST3ESUlTS0NoGNaQNoPROCEDURESStepNo.'sStepNo.'sStepNo.'sStepNo.'sTESTSDefelIedOWOYesONoONhGYesONoQWAGYesONoO~OYesOHoGSetOSatPerformedByYerifledByVTestTestAcceptanceCrtteriaOTestOYesONoOTestOYesGHoGSat0TestGYesGHooII~QYesOHo//Preparedby:~lechnteatRevtewer:fteviewedby:Date:LIBIM~Date:4/~/M~~~ASSS/S5$bale:J/0ShIHodSectionhei'4aelWithWA/t?IcOeOntenWR.flbmalks::-Nbti:fhebelow.atdenature.whensfiroed.:declarestheequtpraantoperableatthe-.daleandlimespactftid::.:..:$>ept0d9y:.'.-..--55890te:I.I.Itic:.:.

SARANINEMILEMOHAWKPOINT3.DEPARTMENTTO00WORKg.QsELECTRICALMAINTENANCEQLQsMECHANICALMAINTENANCE'gQsINSTRUMENTATION&CONTROLQLQsCOMPUTERQLQsISIQLQsSECURITYI&CQLQsFIREQLQsMETER&TESTQLQsOTHER195013ria3i4.PRIORITYOFWORKQ'MERGENCYoWQ2URGENT((IDAY)QINECESSARY((7DAYS)~TEPERMITS{>7DAYS)UNITOUTAGEQsNEXTREFUELINGOUTAGE.5.UNIT:01g206.SYSTEMCODE7.COMPONENTNUMBER6.BIPNUMBER18.SAFETYCLASS0SR00~SR19.EQ0YES@NO20.ASMECOMPONENT0YESNO21.CLEANNESSCLASS*9.EQUIPMENTTITLE:10.FAILUREDESCRIPTIONANDLOCATION11.NPRDS.SYMPTOMCODEDESCRIPTION5Nn~12.ORIGINATOR13.APPROVEDDATE&!/~/DATE+/M/14.W.FLRECEIVED160QANOTIFIEDBYSUPV."DAT~~/'DATE/~'i""TIME"'"'QANAME""'OT~-.-C)REOUIREDT;wJC'7.ACCOUNT-I'III'I/~Wc7.Y4'----"-F4'z~--z-~o.cryo2QAREVIEWQA.DATE'/~cN/~23.INSPECTIONREQUIRED'-YES.~O'"~1'.TAGEDSYA--".'ATE~~'IPARTSC!PRQCEDURECIORWGTIMARRUPCIRWPCINA~.-25.ASSIGNEDTO-""'IEL-'A'E/~/~26.NOTIFICATIONSQC'ATE/'/"'IME'~1EEAo//va/.SSSOAT~4llME~721.CORRECTIVEACTION"'.'26;NPROS.CORREDTIVEACTIONDOOEH"DESCRIPTIONs~ci-~'.I'R.ImK/IgC)4Al'29.CAUSEOFFAILURE3K'NPRDSFAILURECODEK8DESCRIPTIONhV~~,0~~31.ATTACHMENTS0MATERIALISSUES..32:MARKUPNO'S/~33,CORRECTIVEACTIONCOMPLE34.SUPERVISORREVIEWBY35.WORKACCEPTEDBYQA36.PMTREVIEWBYL'MTPROCEDURENO'S.~M/38.PMTCOMPLETEVERIFIEDBY39.ACCEPTEDBY0PROCEDURECHECKUSTS0INSPECTIONREPORTS0LASRWPNO'6/CIRNO'6alw;NCRNO')wA4DATE~/~/DATE/~/~~ADATE8/7/CIASSS/~SUPY.DATE>/>C/0PMTTESTREPORT0NOTREOUIREO0NADATE~/~/~~0SSS0SUPV.DATE//40.NPRDS0NASYSTEMCODESISISBINIT.41.INDEXEDBYDOC.CONT.INIT.SYMBOLhUMBBRSS~0205SA09SS

VerifyP-6blockopenonCB-4page1Verifylogicpowerisoff:A27-CB1open+A27-S1open~*CAUTION:RIGHTSIDEBUSCONNECTIONSAREHOTINSTALLRUBBER~BLANKETS'nplugthefollowingplugsonA27:1'A27P3~2.)A27P4+~3.)A27P64.)A27P15.)A27P2~RemoveA27panfromunitModifyA27-K5relaywiringperEDC~ReinstalltheA27pan.Reinstall1.)2.)3.)4~)5.)followingplugs:~A27P3<A27P4~A27P6~~A27P1~A27P2~CloseA27-S1(LeaveA27-CB1open).Verifymimiclightscomeononthefrontpanel..~Alarmhornwillcomein.(Resetasnecessary)

page2PushrelayA27-K5inANDHOLD.Verifythatlightsgoout.ReleaserelayA27-K5andverifylightscomeon.C,c.~>g<pS'~~~csC<c.fY~m~aC~2g~~q~CglRe-energizetheUPSonACpower,CB-2open,withloadsonmaintenance.VisuallyverifythattheA27-K5relayisenergized.+OpenA27-CB1.OpentheA27-S1switchwhilemonitoringA27-K5andverifythattheA27-K5relaydoesnotdropout.RecloseA27-BlandA27-CB1.~LifttheCB-4motoroperator.inserttheP-6block.Reinsertthemotoroperator.+CloseCB-2.~TransferloadstoUPSpowerandverifymimiclightsarestillon.

t' page3Transferloadstomaintenancepowerandverifythatmimiclightsarestillon.PlacethetransfercontrolswitchineAUTORESTposition.ThenitwillrestartfteratimedeaandretransrtoUPSpower.grJ-3)7+A)ceo5W/c.~

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'h leak'nLL~Oi~0p¹0Ottier0NotApplicable~.WORKINPR06REsQ.DATASHEET:'rriceduretlo.EstimatedDuration:f'ei~nissibieRev.t~rIIcde.QAllQHolShutdownQRunQColdShutdownQSlart-upQAefuelOIY:QlQ11QIll0MQNotApplicable(EquipmentOutofService)clerk-upRequiredpAqeClNoEQUIPNENfII1PACf(LISTOUTOFSERVICEEQUIPMENT)PLANTIMPACT(REQUIRESOPERATION'SINPUT)REFERENCEDRAWINGS:(LISTBELOW)COI1t1EHTSPreparedByd-AllRlhhkslgate.lech.RevfewerTbslnH/AwithNoPlantImpactReviewedwith'CrewBy:Supv/ChtefOate://>PerialsslonRequestedtoSarty-Date:E/PTtme~iPermissionGrantedtoStartBy:SSSDais.2i@/2T'lima:e/4:>MCSD>'aislolXP"TimeQ'.'<'lsnoliiicallone:CI/SSS/CSDCl/SSS/CONTINl>¹OON8ACK 4

3.DEPARTMENTTOOOWORKQQSELECTRICALMAINTENANCEQiQsMECHANICALMAINTENANCEQiQsINSTRUMENTATION&CONTROLQiQsCOMPUTERQiPsISIQiQsSECURITYI&CQiQsFIREQiQsMETER&TESTQi,QsOTHER9.EQUIPMENTTITLE:4.PRIORITYOFWORKQEMERGENCYQ2URGENTI<1OAY)QINECESSARY(<7DAYS)Qs4@TIMEPERMITS(>7DAYS)+~UNITOUTAGENEXTREFUELINGOUTAGE5.UNIT:01QgT6.SYSTEMCODEV7.COMPONENTNUMBER%~V~(8.BIPNUMBER18.SAFETYCLASSQSR00IK(I)SR19.EQ0YESI)QIO20.ASMECOMPONENT0YES2KNO21.CLEANNESSCLASS10.FAILUREDESCRIPTIONANDLOCATION11.NPROS.SYMPTOMCODECIDESCRIPTION>cZc12.ORIGINATORe':13.APPROVED14.W.R.RECEIVED15.PROCEDURENOS./2~I~4~/16-0QANOTIFIEDBYSUPV.DA1'E'/-'.'~""..11MEDATE2-/2Z/~~3PATEc8/~/FjDATE~/~/~'/CIREQUIRED'QANAME17.ACCOUNTIIIII''III.i+'5.',:.-.'-:g~.-"-':".woo'24426-NECE'27'Y,iOAREVIEWQADATE~'/~~~~+23'NSPECTIONREQUIRED':O:YESAWTIOISl'AGEDBY'""'ATE."/~CTPARTGIDPEQCEDURECIDRWGCIMITRKI/PCTRWPCINA'~ASSIGNEDTOB"~P'r/A"'-"'"'=TCOATE~~-C/~~~YINOTIPICATIONRQC.DATE'~11ME""'"MAaArnrk2$1.DATE~/~2A~-'IE~MECORRECTIVEACTION.28.NPRDSCORRECTWEACT)CACOOE~'ESCRIPTIONP~kZPVCMW/d\~~'.29.CAUSEOFFAILURECCVY30,NPROSFAILURECODECZ3DESCRIPTIONS~rl31.ATTACHMENTS0MATERIALISSUES0'PROCEDURECHCRUSTS0INSPECTIONREPORTS0LAS032.MARKUPNO%/3JMEI/CZRWPNO'S/~4T'CIRNQ'S,NCRNO'3.CORRECTIVEACTIONCOMPLETBYOATW~/~/34.SUPERVISORREVIEWBYDATE~/~/~35.WORKACCEPTEDBYQA0NADATEE/MM/~36.PMTREVIEWBY31PMTPROCEDURENO'S.~/I/P.PMTCOMPLETEVERIFIEOBY39.ACCEPTEDBY0ASSS/SSS~UPV.DATE~I~/~//0PMTTESTREPORT02IOTREQUIRED0NADATE+/~l~I0SSS0SUPV.DATE//INIT40.NPROS0NASYSTEMCODEBIBISBINIT.41.INDEXEDBYDOC.CONT.INIT.SYMBOLIIUMBEASS~220$$409~8$

VerifyP-6blockopenonCB-4page1Verifylogicpowerisoff:lA27-CB1openA27-S1open*CAUTION:RIGHTSIDEBUSCONNECTIONSAREHOTINSTALLRUBBERBLANKETS'nplugthefollowingplugsonA27:1.)A27P32.)A27P43.)A27P64-)A27P15.)A27P2RemoveA27panfromunitModifyA27-K5relaywiringperEDCReinstalltheA27pan.Reinstall1.)2.)3.)4~)5.)followingplugs:A27P3A27P4A27P6A27P1A27P2CloseA27-Si(LeaveA27-CB1open).Verifymimiclightscomeononthefrontpanel.Alarmhornwillcomein.(Resetasnecessary)

page2PushrelayA27-K5inANDHOLD.Verifythatlightsgoout.SitReleaserelayA27-K5andverifylightscomeon.C<~e~g>'aIi'X~M~C-E.AfRy'fc~~=~gaa/Re-energizetheUPSonACpower,CB-2open,withloadsvnmaintenance.VisuallyverifythattheA27-K5relayisenergized.OpenA27-CB1.ppOpentheA27-S1switchwhilemonitoringA27-K5andverifythattheA27-K5relaydoesnotdropout.RecloseA27-SlandA27-CB1.LifttheCB-4motoroperator.InserttheP-6block.Reinsertthemotoroperator.I,CloseCB-2.TransferloadstoUPSpowerandveri'fymimiclightsarestillon.(l~

page3Transferloadstomaintenancepowerandverifythatmimiclights5"p,arestillon.PlacethetransfercontrolswitchintheAUTORESTARTposition.Theunitwillrestart(afteratimedealy)andretransfertoUPS~'<power.

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.-:;:~:::Ihl'ORKIN'PP.9RESQDATA8HEET'-.:fcfWilel.~~i0Other.QNotApplicableWVIE-ePSi(-g)1arkNo.QEPNSeeProcedureNo.E'stimatedDuration:Permi'UleRe,z)or)lode:QA)l.QHotShutdownQRunQColdShutdownQstart-upQRefuelQlQIIQIt)0<AotAppllcable(Equ)ptnentOutofService)Mark-upRequiredpresQHoEQUIPMENr)nPAcr(LISTOUTOFSfRY)CEEau)PMENr)PLANTIMPACT(REQUIRESOPERATION'SINPUT)REFERENCEDRANINGs:(I.isrBE).ow)CoriNEHTSPreparedByDale-ITech.RaviewelDate-/0ftionNIAwithNoPlantImpacReviewedwith'CrewBy:Supv/Chio(PertaisslonRequestedtoStrt8.Dat:PermissionGrantedtoStartBy:SSSDate:hNTfme:~:CSOCennliflcallnna:CI/55S/CSO0/SSS/CSCO)'lTINUEDONBACVOafeA//"Time:Q:~Date:~5/>iT)me:.~~/555/'"CSO

.P08T:l1AlH7FNENGE:.TE8TS:::'.,".:TESTREQUIREMENTS::PAT.REQUIRED."oY<8.@NoTESTRESUlTSQNo.QNoQNoQNoPAOCEOUAESStepNo.'sStepNo.'sStepNo.'sStepNo.'sTESTSDeferredSatQYesGHoDYesGHoONAOYesQHo0SatGYesGHo0SatPerformedSyVerifledBy0lestTestAcceptanceCrtteriaI-IDaGfLdRe0;0Test0Test0Test0YesHoSa'tQYesOHo0SatOYesQHo0SatPreparedby:7echnicatReviewer:Reviewedby:.Date:~/H/M~Date:X/+~/~~.iSSSiSSSbrie'..i.iQYesGHo0SatQShiledsectionhot'4IIBwith1AtRIDoctsmbntonWRRema'res:.'".':-Nnte:Thebelowstgnaturi;:whenslaned,.declarestheeguiptaentoperab1eaf'the..dateandttrriasjeelftid::-:.:-:5~iptedBy:.-.'.-..5SS00te:./=/,-Tfme:-':

I UPS1AEFFICIENCYCALCULATIONS:(8/91)Volts:PhaseA:PhaseB:PhaseC:Input:600600600Output:~120124122Amps:PhaseA:PhaseB:PhaseC:4036361005090KW>=~I~xEx1.73x.f.1000(p.f.~=.89fullload)1000approx1.0)EFF=KWpUTKW~=37.3x600x1.73x.8=30'7KW1000KWpUT100x120+50x124+90x122x1.0=29~18KW1000EFF=29.1830.97~94~2ExpectedEff:82491/2load8449fullload

UPS1BEFFICIENCYCALCULATIONS:(8/91)Volts:PhaseA:PhaseB:PhaseC:Input:620610600Output:120.5122121Amps:PhaseA:PhaseB:PhaseC:484446957590KW~=~I>xEx1.73x.f.1000(p.f.~=.89fullload)tl'000approx1.0)EFF=KW()~KW~=46x610x1.73x.8=38'4KW1000KW()~=95x120.5+75x122+90x121x1.0=3149KW1000EFF=31.4938.8481.11ExpectedEff:82491/2load8449fullload

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UPS1CEFFICIENCYCALCULATIONS:(8/91)Volts:AmpsoPhaseA:PhaseB:PhaseC:PhaseA:PhaseB:PhaseC:Input:605600600908486Output:119120122180160165KW~=~I>xEx1.73x.f.1000(puff~=.89fullload)1000approx1.0)EFFKWKW~=86.6x602x1.73x.8=72~1SKW1000KWpUT'80x119+160x120+165x122x1060~75KW1000EFF=60.7572.1584'9ExpectedEff:82491/2load8449fullload V

UPS1DEFFICIENCYCALCULATIONS:(8/91)Volts:Amps:PhaseA:PhaseB:PhaseC:PhaseA:PhaseB:PhaseC:Input:620610605747070~Output:.121119121135155140KW~=~I>xEx1.73x.f.1000(p.f.>=.89fullload)1000approx1.0)EFFKWKW~=71.3x612x1.73x.8=60~39KW1000KWo~=135x121+155x119+140x121x10=5173KW1000EFF=51.7360.3985.66ExpectedEff:82491/2load8449fullload i\t!{l