ML17263A275

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Rev 7 to EOP FR-S.1, Response to Reactor Restart/Atws.
ML17263A275
Person / Time
Site: Ginna Constellation icon.png
Issue date: 04/14/1993
From: MARLOW T A
ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17263A269 List:
References
FR-S.1, NUDOCS 9305140056
Download: ML17263A275 (26)


Text

EOP:FR-S.1TITLE:RESPONSETOREACTORRESTART/ATWS REV:7PAGE1of11ROCHESTER GASANDELECTRICCORPORATION GINNASTATIONCONTROLLED COPYNUMBERTECHNICAL REVIEWPORCREVIEWDATEPLANTSUPERINTENDENT EFFECTIVE DATECATEGORY1.0REVIEWEDBY:930514005b 930505'PDRADOCK05000244FPDR

.L1 EOP:FR-S.1RESPONSETOREACTORRESTART/ATWS REV!7PAGE2of11A.PURPOSE-Thisprocedure providesactionstoaddnegativereactivity toacorewhichisobservedtobecriticalwhenexpectedtobeshutdown.B.ENTRYCONDITIONS/SYMPTOMS 1.ENTRYCONDITIONS

-Thisprocedure isenteredfrom:a.E-O,REACTORTRIPORSAFETYINJECTION, whenreactortripisnotverifiedandmanualtripisnoteffective.

b.F-0.1,SUBCRITICALITY CriticalSafetyFunctionStatusTreeoneitheraREDorORANGEcondition.

EOP:FR-S.1RESPONSETOREACTORRESTART/ATWS REV:7PAGE3of11STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINEDNOTE:oSteps1through4areIMMEDIATE ACTIONsteps.oAdverseCNMTvaluesshouldbeusedwheneverCNMTpressureisgreaterthan4psigorCNMTradiation isgreaterthan10+05R/hr.oAtleastonetrainofreactortripbreakers-OPENoNeutronflux-DECREASING oMRPIindicates

-ALLCONTROLANDSHUTDOWNRODSONBOTTOMManuallytripreactor.IFreactortripbreakersNOTopen,THENmanuallyinsertcontrolrods.O2VerifyTurbineStopValves-CLOSEDManuallytripturbine.IFturbinetripcanNOTbeverified, THENclosebothMSIVs.3CheckAFWPumpsRunning:a.MDAFWpumps-RUNNINGb.TDAFWpump-RUNNINGIFNECESSARY a.ManuallystartMDAFWpumps.b.Manuallyopensteamsupplyvalves.~MOV-3505A

~MOV-3504A

EOP:FR-S.1TITLE:RESPONSETOREACTORRESTART/ATWS REV:7PAGE4-of11STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED*****************************************CAUTIONACTIONSTAKENTOINITIATERCSBORATIONSHALLNOTBEREVERSEDWHENPERFORMING IMMEDIATE ACTIONSOFE-O,REACTORTRIPORSAFETYINJECTION.

NOTE:Ifoffsitepowerislostcoincident withSI,thenMCCCandMCCDlockoutrelaysmustberesettorestoreBAandRMWpumps.O4InitiateEmergency BorationOfRCS:a.CheckSIstatus:oAllSIannunciators EXTINGUISHED oAllSIpumps-OFFINAUTOb.Verifyatleastonechargingpump-RUNNINGc,Alignborationpath:1)StarttwoBAtransferpumps2)OpenMOV-3503)VerifyBAflowd.Verifychargingflowpath:oChargingvalvetoloopBcoldleg(AOV-294)

-OPENoChargingflowcontrolvalve(HCV-142)

-DEMANDAT0'5a.Performthefollowing:

1)Completetheimmediate actionsofE-O,REACTORTRIPORSAFETYINJECTION, whilecontinuing withthisprocedure 2)IFSIflowindicated, THENgotoStep5.IFNOT,THENgotoStep4b.b.Performthefollowing:

1)ResetSIifnecessary.

2)Startonechargingpump.c.Initiatenormalborationatmaximumrateusingtheboricacidflowcontrolvalve,FCV-110A.

IFflowcanNOTbeestablished, THENrefertoER-CVCS.1, REACTORMAKEUPCONTROLMALFUNCTION.

d.Manuallyalignvalvesandverifyflow.

EOP:FR-ST1RESPONSETOREACTORRESTART/ATWS REV:7PAGE5of11STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED5CheckIfTheFollowing TripsHaveOccurred:

a.Reactortripa.DispatchAOtolocallytripreactor:oTripMGsetbreakersatbus13andbus15.b.TurbinetripoOpenreactortripbreakerslocally.b.DispatchoperatortolocallytripturbineusingmanualtripleveronwestendofHPturbine.6CheckPRZRPORVStatus:oRCSpressure-LESSTHAN2335PSIGoPORVs-CLOSEDVerifyCNMTventilation isolation.

IFdampersNOTclosed,THENmomentarily deenergize CNMTparticulate monitor,R-ll,toactuateCVI.oAnnunciator F-19,PRZRPORVOUTLETHITEMP-EXTINGUISHED

EOP:FR-S~1TITLE:RESPONSETOREACTORRESTART/ATWS REV'PAGE6of11STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED*****************************************CAUTIONIFCSTLEVELDECREASES TOLESSTHAN5FEET,THENALTERNATE WATERSOURCESFORAFWPUMPSWILLBENECESSARY (REFERTOER-AFW.1, ALTERNATE WATERSUPPLYTOAFWPUMPS).7CheckS/GLevel:a.NarrowrangelevelinatleastoneS/G-GREATERTHAN5%(25%adverseCNMT]b.Controlfeedflowtomaintainnarrowrangelevelbetween17$t25%adverseCNMT]and50%a.Performthefollowing:

1)Verifytotalfeedflowgreaterthan400gpm.IFNOT,THENmanuallystartpumpsandalignvalvesasnecessary.

2)Maintaintotalfeedflowgreaterthan400gpmuntilnarrowrangelevelgreaterthan5$[25%adverseCNMT]inatleastoneS/G.8VerifyDilutionPaths-ISOLATEDManuallyisolatedilutionpaths.oPlaceRMWmodeswitchtoBORATEoVerifyRMWtoblender(HCV-ill)

CLOSEDoVerifyRMWpumps-OFF y't EOP:FR-ST1RESPONSETOREACTORRESTART/ATWS REV:7PAGE7ofllSTEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED9Stabilize RCSTemperature:

a.Controlsteamdumpasnecessary b.Verifythefollowing:

oCoreexitT/Cs-STABLEORINCREASING b.IFRCScooldowncanNOTbecontrolled, THENclosebothMSIVsandgotoStep10.oPressureinbothS/GsSTABLEORINCREASING oPressureinbothS/GsGREATERTHAN100PSIGc.GotoStep1410VerifyMFWIsolation:

a.MFWpumps-TRIPPEDb.MFWflowcontrolvalves-CLOSED~MFWregulating valves~MFWbypassvalvesa.ManuallycloseMFWpumpdischarge valvesandtripMFWpumps.b.PlaceAandBS/GMFWregulating valveandbypassvalvecontrollers toMANUALat0%demand.11IdentifyFaultedS/G:oAnyS/GPressure-DECREASING INANUNCONTROLLED MANNERGotoStep14.-OR-oAnyS/G-COMPLETELY DEPRESSURIZED

EOP:FR-S.1TITLE:RESPONSETOREACTORRESTART/ATWS REV:7PAGE8of11STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED*****************************************CAUTIONoATLEASTONES/GSHALLBEMAINTAINED AVAILABLE FORRCSCOOLDOWN.

oIFBOTHS/GSAREFAULTED,ATLEAST50GPMFEEDFLOWSHOULDBEMAINTAINED TOEACHS/G.12IsolateFeedFlowToFaultedS/G:oClosefaultedS/GMDAFWpumpdischarge valve~S/GA,MOV-4007~S/GB,MOV-4008oPullstopfaultedS/GMDAFWpumpoClosefaultedS/GTDAFWflowcontrolvalveManuallyclosevalves.IFvalvescanNOTbeclosed,THENdispatchAOtolocallyisolateflowpaths asnecessary.

~S/GA,AOV-4297~S/GB,AOV-4298oVerifyfaultedS/GMFWregulating valveandbypassvalve-CLOSED~S/GA,HCV-466andHCV-480~S/GB,HCV-476andHCV-481oVerifyMDAFWpumpcrosstievalves-BOTHCLOSED~MOV-4000A

~MOV-4000B oClosefaultedS/GSAFWpumpdischarge valve~S/GA,MOV-9701A

~S/GB,MOV-9701B

EOP:FR-S.1RESPONSETOREACTORRESTART/ATWS REV:7PAGE9of11STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED13IsolateSteamFlowFromFaultedS/G:oVerifyfaultedS/GARV-CLOSED~S/GA,AOV-3411~S/GB,AOV-3410oClosefaultedS/GTDAFWpumpsteamsupplyvalveandplaceinPULLSTOPManuallyclosevalves.IFvalvescanNOTbeclosed,THENdispatchAOtolocallyisolateflowpaths asnecessary.

~S/GA,MOV-3505A

~S/GB,MOV-3504A oVerifyfaultedS/Gblowdownandsamplevalves-CLOSED~S/GA,AOV-5738andAOV-5735~S/GB,AOV-5737andAOV-5736oDispatchAOtocompletefaultedS/Gisolation (RefertoAttachment FAULTEDS/G)

A EOP:FR-S.1T1TLE:RESPONSETOREACTORRESTART/ATWS REV:7PAGE10of11STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED*****************************************CAUTIONBORATIONSHOULDCONTINUETOOBTAINADEQUATESHUTDOWNMARGINDURINGSUBSEQUENT ACTIONS.NOTE:AdverseCNMTconditions orlossofforcedaircoolingmayresultinfailureofNISdetectors.

14VerifyReactorSubcritical:

oPowerrangechannels-LESSTHAN5%oIntermediate rangechannelsSTABLEORDECREASING oIntermediate rangechannelsstartuprate-NEGATIVEoCoreexitT/Cs-STABLEPerformthefollowing:

a.Stabilize RCStemperature.

b.Continuetoinjectboricacid.c.DirectHPtosampleRCSandPRZRforboronconcentration.

d.Verifyboronconcentration greaterthanFigureSDM.IFadequateshutdownmarginverified, THENreturntoprocedure andstepineffect.IFNOT,THENperformthefollowing:

a.AllowRCStoheatup.b.PerformactionsofotherFRprocedures ineffectwhichdoNOTcooldownorotherwise addpositivereactivity tothecore.cReturntoStep5.

EOP:FR-S.1RESPONSETOREACTORRESTART/ATWS REV:7PAGE11of11STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED15ReturntoProcedure AndStepInEffect-END-

EOP:FR-S.1RESPONSETOREACTORRESTART/ATWS REV:7PAGE1of1FR-S.1APPENDIXLISTTITLEPAGES1)FIGURESDM2)ATTACHMENT FAULTEDS/G

EOP:FR-ST1TITLE:RESPONSETOREACTORRESTART/ATWS REV:7PAGE1of1FIGURESDM1NOTE:oCurveincludesallowance foronestuckrod.Add100ppmforeachadditional stuckrod.oToobtaincoreburnup,usePPCSturnoncodeBURNUP.BORONCONCENTRATION (PPH)18001600BORONINCREMENTS 20PPM140012001000ADEQUATESDM100PPHCONSERVATISHINCLUDED800600400BORA200BURNUPINCREMENTS 100HWD/MTU01000200030004000500060007000800090001000011000CYCLE23BURNUP(HWD/HTU)