ML17037B596

Nine Mile Point Unit 1 - Letter Regarding Enclosed Report of Operating Statistics and Shutdown Experience for February 1978 and Refueling Information Request

ML17037B596
Person / Time
Site:	Nine Mile Point
Issue date:	03/07/1978
From:	Lempges T E, Schneider R R Niagara Mohawk Power Corp
To:	Office of Nuclear Reactor Regulation
References
Download: ML17037B596 (16)

Text

REGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)DISTRIBUTIONFORINCOMINGMATERIAL50-220REC:NRCORG:LEMPGESTENIAGARAMOHAWKPWRDOCDATE:03/07/78DATERCVD:03/13/78DOCTYPE:LETTERNOTARIZED:NOCOPIESRECEIVED

SUBJECT:

LTR1ENCL1REPORTOFOPERATINGSTATISTICSANDSHUTDOWNEXPERIENCEFORTHEMONTHOFFEBRUARY1978.PLANTNAME:NINEMILEPT-UNIT1REVIEWERINITIAL:XRSDISTRIBUTORINITIAL:0@IDISTRIBUTIONOFTHISMATERIALISASFOLLOWSMONTHLYOPERATINGREPORTFORGRAYBOOKPREPARATION.(DISTRIBUTIONCODEA003)FORACTION:INTERNAL:EXTERNAL:BRCHIEF~4+W/2ENCLPMIRACTION+4IJ/2ENCLLPDRSOSWEGONY++W/ENCLTICI~~W/ENCLNSIC~~~W/ENCLBNL<NATLAB)~~~IJ/ENCLACRSCAT8++W/0ENCLNRCPDR++W/ENCLDISTRIBUTION:LTR10ENCL10SIZE:iP+hPTHEENDCONTRNBR:780740159

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((Hl()Nt()III6K((HK.E(loPINMP-01ggMa/hach7,1978NIAGARAMOHAWKPOWERCORPORATION/300ERIEBOULEVARDWEST,SYRACUSE,N.Y.13202/TELEPHONE(3IG)474.ISIIOMecto/L0$(Lceo)Managementln(otuII~onandP/Log/LamCont1LOLUnitedS~eeNucLea/LReguLato/LyCommQamnNcukingkon,'0.C.20555RE:SocketNo.50-220PPR-b9qfifP~.1gt8~~~/>ss~~C~)~/~CyGentLemen:Submittedhe/LeuLth~CheRepoMo(Ope/~ngS~WMandSh&-doRInExpetu.encetIo/LFebtuIa/Ly1978Jo/LSheN~ehkLePok<NucLeaIL~onUi~<l.ALeo~cLudedman~at~ve/LepoMo)opetuLt~gexpel.ence(o/LShemonth.ALeo,pLeaee)handencLoaedRe(ueDngInfo/onationRequu.t,Ivtu'.cheMtbe.dub~edaep~o(ChemonthLy/LepoM.Ve/Ly~gyouhA,1c~~T.E.empguGeneJmLSupe/u,1LtendmtNucL~.GenercatianFORR.R.Schn~e/LV~cePcukfent-ELe~cP/I.oductLonEncLoau/Luxc:Mtcecto/L,0(pceo]78E(10cop~u)NRCReginlOII(me(1copy)

AVERAGEDAILYUNITPOWERLEVELDOCKETNO.9NilePt.DATECOMPLETEDIIYTJPerkinsFebruary1978DAYAVERAGEDAILYPOWERLEVEL(hfWe-Net)598DAYAVERAGEDAILYPOWERLEVEL(h1We-Net)608171012131415165995645945931615525846046076056046061819202122232425262728293031609610610610609609610591609607608INSTRUCTIONSOnthisformat,listtheavcragcdailyunitpowerlevelinh1~Ve.Netforeachdayinthcreportingmonth.Computetothenearestwholemegawatt.(9/77)

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UNITSIIUI'I)O'lV)(SANDPO>VEI(,REDUCTIONSI)OCI'ErNO.sI)AIF.nit81BEUIIKJ978ext.1312Xo.l)J!ecolIC/)LiccnsccEvcnlRcport-(.auseB.('))rrcctivcAclli)nli)Pfcvcf)IRci:1)frc)1cc002/3/782/6/782/25/78S20.54.4Reducedloadtochangecondensatedemineralizers.TryingtolatchupT.S.V.BypassValve.AllT.S.V.sclosedcausingturbinetripandreactor'cram.Reducedloadtochangecondensatedemineralizers.I.:I'i)feedS:Sehed<<lcilRcison:A-I'Jluipn)cntFail<<rc(Explain)13.M:)if)tcf):)nccorfest(Rcl'uclingD-Rcgulati)ryRestrictionli-OperJlofTfJiningk.LiccnscFxafninalionF-AdfninistrativcG-Oper:)lionalErr))r(I'.xplain)II.Other(Explain)3)iicthod:!-hlaf)ual2).hlanualScrafn.3Auton1JtlcSi;ran1.4-Other(Explain)IExhibitG~Instructionsfl)rPfcpllfJllilni)lD:It:IEntrySheetslorI.icenseeEventRcport(LL'R)I'ile(NUREG-OI6I)ExhibitI-San)eSource

OPERATINGDATAREPORTDOCKETNO50-220DATECOIIPLETEI)IIY~J.Perkins'PTELEPIIONE~~110OPERATINGSTATUSI.UnitName:ReportingPeriod.02-01-78-02-28-783.LicensedThermalPopover())I')Vt):4.NameplateRating(GrossI)fWc):6405.DesignElectricalRating(NetMIVc):6.MaximumDependableCapacity(Grossf)flVe):7.MaximumDependableCapacity(NctI)IIVe):630610Notes8.IfChangesOccurinCapacityRatings(ItemsNumber3Through7)SinceLastReport,GiveReasons:9.PowerLevelToh'hichRestricted,IfAny(Nct)IIIVe):10.ReasonsForRestrictions,IfAny:ThisI)!OllthYr.-to.Date,367.1343.3,88686718595988711.HoursInReportingPeriod672112.NumberOfHoursReactorWasCritical657.413.ReactorReserveShutdownHours14.HoursGeneratorOn.Line115.UnitReserveShutdownHours-0-16.GrossThermalEnergyGenerated(MNH)~iERSI.18.NetElectricalEnergyGenerated(i)INH)19.UnitServiceFactor9820.UnitAvailabilityFactor22.UnitCapacityFactor(UsingDERNct)23.UnitForcedOutageRate324.ShutdownsScheduledOverNext6ilfonths(Type.Date.andDurationofE:)ch):24Aril1978SnubberInspectionCtlnlulat)ve73,00852,436.050,033.520.280,781,8952657357925,742,10869585725.IfShutDownAfEndOfRcportPeriod,EstimatedDateofStartup:26.UnitslnTestStatus(I'riortoCo)n)ncrcialOper;)tion):Force;)stAchievedlikfITIALCRITICALITYliiiITIALELECTRICITYCORDIERCIAI.Ol'ERATION'))/77I L

NIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINTNUCLEARSTATIONUNIT¹1NARRATIVEOPERATINGREPORTFEBRUARY1978TheStationoperatedat98/availabilityand94%capacityfactorforthemonth.Thedailyoperatinghistoryfollows:Feb.1-Feb.4Feb.5Feb.6Feb.7Feb.8Feb.9Feb.10-Feb.24Fe.b.25Feb.26-Feb.28Operatedat97.5/thermalpower615MWe.Reducedloadto500MWeforcondensatedemineralizerresinchangeandcontrolrodpatternadjustment.Loadincreasedto608MWe,pre-conditioningpowerlevelincreasesafterrodpatternadjustment.Fullloadreachedat0500623MWe.At2230,areactorscramoccurredwhileattemptingtorelatch¹13TSVBypassvalvemechanism.Failureofapneumaticoperatedvalvecausedallstopvalvestoshut.Reactorcriticalat1400andunitsynchronizedtothelineat1900.Continuedloadincreasestoreach500MWe.Heldatthislevelunti12100forXeproduction;reducedloadviarecircflowto400MWeforrodwithdrawalstoobtain100%controlrodpattern.Continuedloadincreasesto600MWeby2200.Operatedcontinuouslyatapproximately1840MWth623MWe.Reducedloadto500MWeforchangeofcondensatedemineralizer.Loadreturnedto623MWeafter6thcondensatedemineralizerwasplacedinservice.Steadystatepoweroperationatapproximately-99/.

REFUELINGINFORMATIONREQUEST1.NameofFacilityNineMilePointUnit812.ScheduledDateforNextRefuelingShutdownThenextrefuelingatNineMilePointUnit81istentativelyscheduledfortheSpringof1979.However,evaluationstobeperformedduringtheSpringof1978mayrevealaFall1978refuelingtobemoredesirable.IfaFall1978refuelingisutilized,aSeptember2,1978shutdowndateisassumed.3.ScheduledDateforRestartFollowingRefuelingTherefuelingoutageisscheduledtotakeapproximatelyeightweeks.4.WillrefuelingorresumptionofoperationthereafterrequireaTechnicalSpecificationchangeorotherlicenseamendment?Ifanswerisyes,what,ingeneralwillthesebe?Itisanticipatedthatpriortoresumptionofoperationfollowingthenextrefuelingoutage,achnagewillberequiredtotheNineMilePointUnittlTechnicalSpecifications.ThenextreloadatUnitb'1will.containredesignedfuelassemblieswhichwillbeincorporatedintotheTechnicalSpecifications(i.e.fuelthermallimits).5.ScheduleDate(s)forsubmittingproposedlicensingactionandsupportinginformation.InanticipationofaFall1978refuleing,NiagaraMohawkisscheduledtosubmitareloadlicensingdocumenttoNRCaroundJune1,1978.ShouldthecyclebeextendedtotheSpring1979period,NiagaraMohawkisscheduledtosubmitareloadlicensingdocumenttoNRCaroundNovember15,1978.6.Importantlicensingconsiderationsassociatedwithrefueling,e.g.,newordifferentfueldesignorsupplier,unrevieweddesignorperformanceanalysismethods,significantchangesinfueldesign,newoperatingprocedures.ThenextreloadatNineMilePoint81willcontainredesignedfuelassembliesassummarizedinGeneralElectric'sGenericReloadFuelApplicationLicensingTopicalReportNEDE24011-PRevision2.7.Thenumberoffuelassemblies(a)inthecoreand(b)inthespentfuelstoragepool.TheNineMilePointUnitPlcorecontains532fuelassemblies,Thespentfuelpoolcontains660fuelassemblies.

rk Page28.Thepresentlicensedspentfuelpoolstoragecapacityandthesizeofanyincreaseinlicensedstoragecapacitythathasbeenrequestedorplannedinnumberoffuelassemblies.TheNineNilePointUnit¹1spentfuelpoolislicensedtocontain1,984fuelassemblies.9.Theprojecteddateofthelastrefuelingthatcanbedischargedtothepresentfuelpoolassumingthepresentlicensedcapacity.Undernormaloperatingconditions,itisestimatedthespentfuelpoolcancontainallfuelassembliesscheduledtobedis-chargedfromUnit¹1untilapproximately1990.

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