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{{#Wiki_filter:ACCESSIONwBH:FACIL:5025050-251bv-335AUTllNATEUHRIlJgk~E~kFCIP~AAilEEISE~nur,O,G.aEuuLATyI"iFOkiiA1IONurSTerSUTIOlSTE~CRrOS)d002150a65OOC,OATF.:FJO/02/11"(UTAHIlgwu:filJTurKeyPointPlantiUnit3<FloridaPowerandLjqhtCTurkeyPointPlant<minit4~Flori@aPo~erandLiattCSt,Lur.iePlantiUnit1IFlorio~Power4LightGo.AUTHORAFF1LIAT1<fi<FIoriaaPower>C~D~wEGIPlE"TAFFILI~1iliesOfficeof"uclearreactorRegulationOQCKi=T05000250n251
{{#Wiki_filter:ACCESSION wBH:FACIL:5025050-251bv-335AUTllNATEUHRIlJgk~E~kFCIP~AAilEEISE~nur,O,G.
aEuuLATyI"iFOkiiA1ION urSTerSUTIOlSTE~CRrOS)d002150a65 OOC,OATF.:FJO/02/11
"(UTAHIlgwu:filJTurKeyPointPlantiUnit3<FloridaPowerandLjqhtCTurkeyPointPlant<minit4~Flori@aPo~erandLiattCSt,Lur.iePlantiUnit1IFlorio~Power4LightGo.AUTHORAFF1LIAT1<fi<FIoriaaPower>C~D~wEGIPlE"TAFFILI~1iliesOfficeof"uclearreactorRegulation OQCKi=T05000250n251


==SUBJECT:==
==SUBJECT:==
ForwarfsresoonsetoI'G7910nl41017re(>uestsforinforelossofoffs>teoozier.,events.Descriptionofsi.>nif>cantsys<<wivei~orove~entshinfore+gloro.ffs~teeventsencl.(w~<o45'u&~~/~Rrx~/~wDISTRIBvlIO~couE:Au155GOPIBSktGEIvsO:LTk~F<<GL~Slit..TITl.E:OnsiteEmergencyVowerSystemsREGIVIEtrI0GOOE/'cA4EAGTION:05BC~P~~C)Ft~~~INTERNAL0-~FTL13c16~iP418I~CSYS~R21REACSFTYBR23AOVREACdR25CHIRASSAI827HGOONAIOr0AEOOSTSGROUPLEAOi<COPIESLTIRE'~GL11121111111111111111RF.GIPIEf4TIOCUOE/WA~E""CRIB+toz<W%i~'f15OELO17AUXIL5Y5~3k20F!iGHbk22PLANTSYSBk20P'v'HSYSUR26TONOIp050EEUSrtABAUERGoprt,sLlTRElCL1011111111111111111EXTERNAL:03LPOR31ACRS11161604BASIC11"~880)g@PS'VTOTALi~UMHE,HUFCOPIESREVUI,REO;ITTk~e,i~>CL OfficeofNuclearReactorRegulationAttention:Mr.DarrellG.Eisenhut,ActingDirectorDivisionofOperatingReactorsU.S.NuclearRegulatoryCommissionWashington,D.C.20555
ForwarfsresoonsetoI'G7910nl41017re(>uests forinforelossofoffs>teoozier.,events.Description ofsi.>nif>cantsys<<wivei~orove~ents hinfore+gloro.ffs~teeventsencl.(w~<o45'u
&~~/~Rrx~/~wDISTRIBvlIO~couE:Au155GOPIBSktGEIvsO:LTk~F<<GL~Slit..TITl.E:OnsiteEmergency VowerSystemsREGIVIEtrI0GOOE/'cA4EAGTION:05BC~P~~C)Ft~~~INTERNAL0-~FTL13c16~iP418I~CSYS~R21REACSFTYBR23AOVREACdR25CHIRASSAI827HGOONAIOr0AEOOSTSGROUPLEAOi<COPIESLTIRE'~GL11121111111111111111RF.GIPIEf4TIOCUOE/WA~E
""CRIB+toz<W%i~'f 15OELO17AUXIL5Y5~3k20F!iGHbk22PLANTSYSBk20P'v'HSYSUR26TONOIp050EEUSrtABAUERGoprt,sLlTRElCL1011111111111111111EXTERNAL:
03LPOR31ACRS11161604BASIC11"~880)g@PS'VTOTALi~UMHE,HUFCOPIESREVUI,REO; ITTk~e,i~>CL OfficeofNuclearReactorRegulationAttention:
Mr.DarrellG.Eisenhut, ActingDirectorDivisionofOperating ReactorsU.S.NuclearRegulatory Commission Washington, D.C.20555


==DearMr.Eisenhut:==
==DearMr.Eisenhut:==
February11,.1980L-49-80Re:TurkeyPointandSt.LuciePlantsDocketNos.50-250,50-251,and50-335OffsitePowerThisletterisforwardedinresponsetolettersdatedOctober1andOctober17,1979fromMr.A.SchwencerandMr.R.W.Reidofyourstaff.TheNRCletterswereonthegeneralsubjectofoffsitepowerandrequestedconsiderableinformationspecifictolossofoffsitepowereventsexperiencedbyFloridaPowertLightCompany(FPL).Thedetailedcompilationoftherequestedinformationrepresentsanextensiveefforttosegregatedataonoffsitepowerevents,muchofwhichalreadyexistsinotherFPLreports.Atthispoint,wehavedeterminedthatitwouldbelesstimeconsuming(animportantconsiderationgiventhemanpowerconstraintscausedbyNUREG-0578)andpossiblymoreusefulforustodescribethemanysignificantsystem-wideimprovementswehavemadesinceourfirstnuclearunitbecameoperationalin1972.ThisdescriptionisprovidedinAttachment1andshowsthedegreeofchangeexperiencedbytheFPLtransmissionsystemovertheinterveningyears.Thus,forthepurposeofevaluatinganelectricaltransmissionsystem,thevalueofcompilingdetailedinformationonoffsitepowereventsfromseveralyearspastwouldappeartobemuchlessfortheFPLsystemthanforasystemthathadnotbeenchanged.AlistingofmajorFPLoffsitepowereventsispresentedinAttachment2.Eacheventwasanalyzedtodetermineitscauseandtodeveloprecommendationstohelppreventrecurrence.Alargenumberofsuchreccmmendationshavebeenimplemented,withaconsequentincreaseinthestabilityandreliabilityoftheFPLsystem.Ingeneraltheimprovementscanbecategorizedasfollows:(1)anincreaseinthenumberandcapacityoftransmissionlines,withplansforfurtherexpansionofthe500kVportionofthesystem,,(2)improvedcontrolbymeansofanadvancedelectroniccontrolsystem,simulatortraining,andimprovedswitchingproceduresandemergencycontrolprocedures,(3)improvedsystemrelayprotection,ando~(4)revisedsystemoperatingpolicies.~3 Hr.OarrellG.Eisenhut,ActingDirectorPage2Inanattempttosupplyasmuchinformationaspossiblewhileminimizingourstaffworkload,wehavecompiledalistofreferencesrelatedtotheeventslistedinAttachment2.ThereferencesarepresentedinAttachment3.Wehopethattheattachedinformationwillsatisfyyourstaff'srequest.However,ifadditionalinformationisneededtoresolveanyremainingconcerns,pleaseletmeknow.FPLismorethanwillingtorespondtoyourstaff'sconcerns,butwewouldliketodosoinamannerthatminimizestheimpactonourlimitedresources.Verytrulyyours,/~-iRobertE.UhrigVicePresidentAdvancedSystems5(TechnologyREU/tSS/cphAttachments(3)cc:'1r.J.P.O'Reilly,RegionIIHaroldReis,Esquire}}
 
February11,.1980L-49-80Re:TurkeyPointandSt.LuciePlantsDocketNos.50-250,50-251,and50-335OffsitePowerThisletterisforwarded inresponsetolettersdatedOctober1andOctober17,1979fromMr.A.Schwencer andMr.R.W.Reidofyourstaff.TheNRCletterswereonthegeneralsubjectofoffsitepowerandrequested considerable information specifictolossofoffsitepowereventsexperienced byFloridaPowertLightCompany(FPL).Thedetailedcompilation oftherequested information represents anextensive efforttosegregate dataonoffsitepowerevents,muchofwhichalreadyexistsinotherFPLreports.Atthispoint,wehavedetermined thatitwouldbelesstimeconsuming (animportant consideration giventhemanpowerconstraints causedbyNUREG-0578) andpossiblymoreusefulforustodescribethemanysignificant system-wide improvements wehavemadesinceourfirstnuclearunitbecameoperational in1972.Thisdescription isprovidedinAttachment 1andshowsthedegreeofchangeexperienced bytheFPLtransmission systemovertheintervening years.Thus,forthepurposeofevaluating anelectrical transmission system,thevalueofcompiling detailedinformation onoffsitepowereventsfromseveralyearspastwouldappeartobemuchlessfortheFPLsystemthanforasystemthathadnotbeenchanged.AlistingofmajorFPLoffsitepowereventsispresented inAttachment 2.Eacheventwasanalyzedtodetermine itscauseandtodeveloprecommendations tohelppreventrecurrence.
Alargenumberofsuchreccmmendations havebeenimplemented, withaconsequent increaseinthestability andreliability oftheFPLsystem.Ingeneraltheimprovements canbecategorized asfollows:(1)anincreaseinthenumberandcapacityoftransmission lines,withplansforfurtherexpansion ofthe500kVportionofthesystem,,(2)improvedcontrolbymeansofanadvancedelectronic controlsystem,simulator
: training, andimprovedswitching procedures andemergency controlprocedures, (3)improvedsystemrelayprotection, ando~(4)revisedsystemoperating policies.~3 Hr.OarrellG.Eisenhut, ActingDirectorPage2Inanattempttosupplyasmuchinformation aspossiblewhileminimizing ourstaffworkload, wehavecompiledalistofreferences relatedtotheeventslistedinAttachment 2.Thereferences arepresented inAttachment 3.Wehopethattheattachedinformation willsatisfyyourstaff'srequest.However,ifadditional information isneededtoresolveanyremaining
: concerns, pleaseletmeknow.FPLismorethanwillingtorespondtoyourstaff'sconcerns, butwewouldliketodosoinamannerthatminimizes theimpactonourlimitedresources.
Verytrulyyours,/~-iRobertE.UhrigVicePresident AdvancedSystems5(Technology REU/tSS/cph Attachments (3)cc:'1r.J.P.O'Reilly, RegionIIHaroldReis,Esquire}}

Revision as of 17:24, 29 June 2018

Forwards Response to NRC 791001 & 17 Requests for Info Re Loss of Offsite Power Events.Description of Significant sys-wide Improvements & Info Re Major Offsite Events Encl
ML17207A818
Person / Time
Site: Saint Lucie, Turkey Point  NextEra Energy icon.png
Issue date: 02/11/1980
From: UHRIG R E
FLORIDA POWER & LIGHT CO.
To: EISENHUT D G
Office of Nuclear Reactor Regulation
Shared Package
ML17207A819 List:
References
L-49-80, NUDOCS 8002150465
Download: ML17207A818 (3)
v • d • e


Text

ACCESSION wBH:FACIL:5025050-251bv-335AUTllNATEUHRIlJgk~E~kFCIP~AAilEEISE~nur,O,G.

aEuuLATyI"iFOkiiA1ION urSTerSUTIOlSTE~CRrOS)d002150a65 OOC,OATF.:FJO/02/11

"(UTAHIlgwu:filJTurKeyPointPlantiUnit3<FloridaPowerandLjqhtCTurkeyPointPlant<minit4~Flori@aPo~erandLiattCSt,Lur.iePlantiUnit1IFlorio~Power4LightGo.AUTHORAFF1LIAT1<fi<FIoriaaPower>C~D~wEGIPlE"TAFFILI~1iliesOfficeof"uclearreactorRegulation OQCKi=T05000250n251

SUBJECT:

ForwarfsresoonsetoI'G7910nl41017re(>uests forinforelossofoffs>teoozier.,events.Description ofsi.>nif>cantsys<<wivei~orove~ents hinfore+gloro.ffs~teeventsencl.(w~<o45'u

&~~/~Rrx~/~wDISTRIBvlIO~couE:Au155GOPIBSktGEIvsO:LTk~F<<GL~Slit..TITl.E:OnsiteEmergency VowerSystemsREGIVIEtrI0GOOE/'cA4EAGTION:05BC~P~~C)Ft~~~INTERNAL0-~FTL13c16~iP418I~CSYS~R21REACSFTYBR23AOVREACdR25CHIRASSAI827HGOONAIOr0AEOOSTSGROUPLEAOi<COPIESLTIRE'~GL11121111111111111111RF.GIPIEf4TIOCUOE/WA~E

""CRIB+toz<W%i~'f 15OELO17AUXIL5Y5~3k20F!iGHbk22PLANTSYSBk20P'v'HSYSUR26TONOIp050EEUSrtABAUERGoprt,sLlTRElCL1011111111111111111EXTERNAL:

03LPOR31ACRS11161604BASIC11"~880)g@PS'VTOTALi~UMHE,HUFCOPIESREVUI,REO; ITTk~e,i~>CL OfficeofNuclearReactorRegulationAttention:

Mr.DarrellG.Eisenhut, ActingDirectorDivisionofOperating ReactorsU.S.NuclearRegulatory Commission Washington, D.C.20555

DearMr.Eisenhut:

February11,.1980L-49-80Re:TurkeyPointandSt.LuciePlantsDocketNos.50-250,50-251,and50-335OffsitePowerThisletterisforwarded inresponsetolettersdatedOctober1andOctober17,1979fromMr.A.Schwencer andMr.R.W.Reidofyourstaff.TheNRCletterswereonthegeneralsubjectofoffsitepowerandrequested considerable information specifictolossofoffsitepowereventsexperienced byFloridaPowertLightCompany(FPL).Thedetailedcompilation oftherequested information represents anextensive efforttosegregate dataonoffsitepowerevents,muchofwhichalreadyexistsinotherFPLreports.Atthispoint,wehavedetermined thatitwouldbelesstimeconsuming (animportant consideration giventhemanpowerconstraints causedbyNUREG-0578) andpossiblymoreusefulforustodescribethemanysignificant system-wide improvements wehavemadesinceourfirstnuclearunitbecameoperational in1972.Thisdescription isprovidedinAttachment 1andshowsthedegreeofchangeexperienced bytheFPLtransmission systemovertheintervening years.Thus,forthepurposeofevaluating anelectrical transmission system,thevalueofcompiling detailedinformation onoffsitepowereventsfromseveralyearspastwouldappeartobemuchlessfortheFPLsystemthanforasystemthathadnotbeenchanged.AlistingofmajorFPLoffsitepowereventsispresented inAttachment 2.Eacheventwasanalyzedtodetermine itscauseandtodeveloprecommendations tohelppreventrecurrence.

Alargenumberofsuchreccmmendations havebeenimplemented, withaconsequent increaseinthestability andreliability oftheFPLsystem.Ingeneraltheimprovements canbecategorized asfollows:(1)anincreaseinthenumberandcapacityoftransmission lines,withplansforfurtherexpansion ofthe500kVportionofthesystem,,(2)improvedcontrolbymeansofanadvancedelectronic controlsystem,simulator

training, andimprovedswitching procedures andemergency controlprocedures, (3)improvedsystemrelayprotection, ando~(4)revisedsystemoperating policies.~3 Hr.OarrellG.Eisenhut, ActingDirectorPage2Inanattempttosupplyasmuchinformation aspossiblewhileminimizing ourstaffworkload, wehavecompiledalistofreferences relatedtotheeventslistedinAttachment 2.Thereferences arepresented inAttachment 3.Wehopethattheattachedinformation willsatisfyyourstaff'srequest.However,ifadditional information isneededtoresolveanyremaining
concerns, pleaseletmeknow.FPLismorethanwillingtorespondtoyourstaff'sconcerns, butwewouldliketodosoinamannerthatminimizes theimpactonourlimitedresources.

Verytrulyyours,/~-iRobertE.UhrigVicePresident AdvancedSystems5(Technology REU/tSS/cph Attachments (3)cc:'1r.J.P.O'Reilly, RegionIIHaroldReis,Esquire

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