ML17333B020

Responds to 970724 RAI Re 960711 5% Thermal Power Uprate Submittal AEP:NRC:1223

ML17333B020
Person / Time
Site:	Cook
Issue date:	08/27/1997
From:	FITZPATRICK E INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
AEP:NRC:1223F, NUDOCS 9709040278
Download: ML17333B020 (8)

Text

cZCATEGORY1REGULATCINFORNATIONDISTRIBUTION+TEM(RIDE)ACCESSION'NBR:9709040278DOC.DATE:97/08/27NOTARIZED:YESDOCKETIFACIL:50-316DonaldC.CookNuclearPowerPlant,Unit2,IndianaM05000316AUTH.NAMEAUTHORAFFILIATIONFITZPATRICK,E.IndianaMichiganPowerCo.(formerlyIndiana6MichiganEleRECIP.NAMERECIPIENTAFFILIATIONDocumentControlBranch(DocumentControlDesk)

SUBJECT:

Respondsto970724RAIre9607115%thermalpowerupratesubmittalAEP:NRC:1223.DISTRIBUTIONCODE:AOOZDCOPIESRECEIVED:LTR/ENCL/SIZE:TITLE:ORSubmittal:GeneralDistributionNOTES:RECIPIENTIDCODE/NAMEPD3-3LAHICKMAN,JCOPIESLTTRENCL1111RECIPIENTIDCODE/NAMEPD3-3PDICOPIESLTTRENCL11E0INTERN,ILgCENTE1NRR/DE/EMCBNRR/DSSA/SPLBNUDOCS-ABSTRACTEXTERNAL:NOAC1111111111NRR/DE/ECGB/ANRR/DRCH/HICBNRR/DSSA/SRXBOGC/HDS2NRCPDR1111111011D,ENNOTETOALL"RZDS"RECIPIENTS:PLEASEHELPUSTOREDUCEWASTE.TOHAVEYOURNAMEORORGANIZATIONREMOVEDFROMDZSTRIBUTIONLISTSORREDUCETHENUMBEROFCOPIESRECEIVEDBYYOUORYOURORGANIZATION,CONTACTTHEDOCUMENTCONTROLDESK(DCD)ONEXTENSION415-2083TOTALNUMBEROFCOPIESREQUIRED:LTTR13ENCL12 E%IltItII IndianaMichiganPowerCompany500CircleDriveBuchanan,Mi491071395ÃINDMMANICHl6AMPQMfJFRAugust27,1997tlDocketNo.:50-316U.S.NuclearRegulatoryCommissionATTN:DocumentControlDeskWashington,D.C.20555Gentlemen:AEP:NRC:1223FDonaldC.CookNuclearPlantUnit2RESPONSETOREQUESTFORADDITIONALINFORMATIONREGARDINGPOWERUPRATEANDRELATEDCHANGESThisletteranditsattachmentconstitutearesponsetotheJuly24,1997,NRCrequestforadditionalinformationregardingourJuly11,1996,5%thermalpowerupratesubmittalAEP:NRC:1223.Therequestforadditionalinformationprimarilyinvolvestheimpactoftheupratingontheinstrumentsetpoints.Thisletterissubmittedpursuantto10CFR50.30(b)and,assuch,includesanoathstatement.Sincerely,E.E.FitzpatrickVicePresidentSWORNANDSUBSCRIBEDBEFOREMEHIS27thOFAUGUST1997JANETK.OYTRANotaryublicMYCommissionExpires07I701SSjANEi'.OYKSlRANOTARYPUBUC-BERRlENCOUN1Y,MlNCOMMSQONEXPiRES07/Ol/00vlbAttachmentA.A.BlindA.B.BeachMDEQ"DW&RPDNRCResidentInspectorJ.R.Padgett970'F040278970827PDRADQCK050003l6PPDR~n,wqQBllllllllllllllllllllllllllllllllllllllll ATTACHMENTTOAEP:NRC:1223FREQUESTFORADDITIONALINFORMATIONREGARDINGPOWERUPRATEANDRELATEDCHANGESRESPONSE AttachmenttoAEP:NRC:1223FPage1NRCuestion"Inordertoassurethattherevisedinstrumentsetpointsarewellwithinthesafetylimits,pleaseprovidethefollowinginformationforeachchangedinstrumentsetpoint:Part1"Changeinthesetpoint;"ResonsetoPart1FourinstrumentsetpointchangeswereproposedintheCookNuclearPlantunit2upratesubmittal.TheseareOTDT,safetyinjectiononpressurizerpressurelow,safetyinjectiononsteamlinepressurelow,andsteamlineisolationonsteamlinepressurelow.ThesubmittalalsoincludesaproposaltochangetheOPBTsetpointallowablevalue.Thechangeforeachsetpointisindicatedinthefollowinglistasanorderedpair,withthecurrentvaluefirstandtheproposedvaluesecondforeachsetpoint,orinthecaseofOTbT,foreachchangedparameterorcoefficient.MaximumT'aximumP'au1KlK2K3LowhIBreakpointLowAIPenaltySlopeHighhIPenaltySlopeSIonpressurizerpressurelowSIonsteamlinepressurelowSteamlineisolationonsteamlinepressurelowIPart2576.0oF~5813oF2235psig,2235psig,or2085psig28secs,22secs1.09,1.170.01331,0.02680.00058,0.00111-33~o,-16%35%/%',05+o/+o1.0%'/%',2.7~a/%'900psig,1815psig600psig,500psig600psig,500psig"Calculatedworstcasedriftandpagereferencetothecalculationthatcoversthedriftincludinguncertaintycalculationwhereapplicable;"ResonsetoPart2Whenperforminguncertaintycalculationsforsetpoints,2drifttermsareutilized:adrifttermassociatedwiththeinstrumentsensor(transmitter,resistancetemperaturedetector,etc.),andadrifttermassociatedwiththeinstrumentrack.Fortransmittersensors,thedrifttermutilizedintheuncertaintycalculationsis1%ofspanandisconsideredaboundingvalueforthetransmittersinstalledatCookNuclearPlant.Thisisthevaluethatwasusedintheuncertaintycalculationsperformedforthesafetyinjection(SI)onpressurizerpressurelow,SIonsteamlinepressurelow,andsteamlineisolationonsteam,linepressurelowsetpoints.

AttachmenttoAEP:NRC:1223FPage2Toassurethatthetransmittersassociatedwiththepressurizerpressureandsteamlinepressureinstrumentloopsareboundedbythe1%driftterm,astatisticalanalysiswasperformedonas-found/as-leftcalibrationdatathathasbeencollectedsincetheinstallationofthenewFoxboroSpec200ProtectionSystem(Circa1994).Thestatisticalanalysisconfirmedthatthedriftvalueforthesetransmittersisboundedbythe1%valueutilizedintheuncertaintycalculations.FortheRTDsensorsassociatedwiththeOPGTandOTATsetpointuncertaintycalculations,adrifttermof0.73'(or0.72%ofspan)isutilized.ThisvaluehasbeenprovidedbyWestinghouseandisconsideredaboundingvalue.Theboundingvaluefortherackdrifttermis1%ofspan.ThisvaluehasbeensubstantiatedtobeaboundingvaluefortheinstrumentracksinstalledatCookNuclearPlantbyWestinghouse.mareS"Allowablevalue;and"ResonsetoPart3Theproposedchangesinallowablevaluesareindicatedasorderedpairswiththecurrentvaluefirstandtheproposedvaluesecondforeachsetpointinaformatsimilartothatusedtoaddressiteml.OTLTOPLTSIonpressurizerpressurelowSIonsteamlinepressurelowSteamlineisolationonsteamlinepressurelow1.3%span,3.75%span3.0%span,2.59%span1890psig,1805psig585psig,480psig585psig,480psigPart4"Safetylimitandpagereferencetothedocumentthatspecifiesthesafetylimit."ResonsetoPart4Thesafetylimitsarefoundinattachment6toourJuly11,1996,submittal.Attachment6isWCAP-14489.ThepagereferencestothesafetylimitsinWCAP-14489areasfollowsinaformatsimilartothatusedtoaddressitems1and3.

AttachmenttoAEP:NRC:1223FPage3OTATOPBTSIonpressurizerpressurelowSIonsteamlinepressurelowSteamlineisolationonsteamlinepxessurelowK1=1.37,Table3.3-4,page3.3-30K4=1.17,Table3.3-4,page3.3-301715psia,Table3.1-3,page3.1-17forLBLOCA*1715psia,Table3.1-13,page3.1-28forSBLOCA*1700psig,Table3.3-3,page3.3-29344psig,Table3.3-3,page3.3-29344psig,Table3.3-3,page3.3-29***ValuesfromRTSRAnalysisTableswereusedforallanalyses.**Table3.3-3indicates"notapplicable"forthisfunction.ItwasconfirmedwiththeWestinghouseanalystthatthismeanstheLOFTRANmodelusesthesamesetpointforsafetyinjectionandsteamlineisolation.Therefore,344psigisthecorrectvalue.

"f)-~~E