ML17309A154: Difference between revisions

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{{#Wiki_filter:LER81-007/3L-0LICENSEEEVENTREPORTCAR13001)3)4)7)8)10)ControlBlock:LicenseType:I4',1'1,',1',1',DocketNumber:I0I50002EventDate'IOI11II11EventDescriptionandProba2)LicenseeCode'.'N'Y',R',E',G0I0'0I-I0I0',5Cat:II/6)ReportSource9ReportDate'0'5'1111811IbleConsequences:~ILI~IIeIDurinsteadystateoperationalossofthe34.5KVsupplytofINo.12transformseroccuredcreatingalossofoffsitepower/,toannatation.iscreatedalossofpowerto1Iussesand1andsaeguarbussesan11.EmergencyD/G's1Aand1BstartedonundervoltagesignalIIandsuppliedpowertotheOVsafeguardbusses.ThetemporaryIIinterruptiontotheowersupplyforthe1Binstrumentbus11)14)17)18)21)23)25)27)SystemCode'EAI12)CauseCode:',E',13)CauseSubcode:IAIComp.Code:/,~C/K/T/BIRIKI15)Subcode;/X/16)ValveCode:jZ/~'-''7'/'ctionTaken:IX'19)FutureAction:',Z',20EffectonPlant:',B',ShutdownMethod:IZI22)Houls'0I010I5IPrimeComponentSupplier:ILI26)Manufacturer:',J',1'I~2,0',CauseDescriptionandCorrectiveActions:',Thecausewasidentifiedtoafaultinthe"B"Phasevacuumf',breakerswitchwhichsuppliesthe12Bsparetransformer.,The12transformerwasisolatedfromthe3.5KVbusandpower>',wasrestoredtotheNo.12transformer.Thesafeuardbusses',,weretransferredbactoteirnormalsupplyandtheemerpency',',DieselGeneratorssecured.28)30)31)32)33)35)36)37)39)40)41)42)43)44)45)FacilityStatus:',E',OtherStatus:1N/A1MethodofDiscovery:IAIDiscoveryDescription~IOperatorObActivityReleased:IZI3ContentAmountof'ctivity:,I/AILocationofRelease:/N/AlPersonnelExposuresNumber:100I0IDescription:',N/AIPersonnelInjuriesNumber:',0',0',0',Description:IN/AILossoforDamagetoFacility:IZIDescription:IN/AIPublicityIssued:INIDescription:/N/AlIOI9I5IservationiofRelease:IZI38)ExposuresType:',Z',NRCUSEONLYNameofPreparer:ClairEdgarPhone:315-524-4446x248
{{#Wiki_filter:LER81-007/3L-0 LICENSEEEVENTREPORTCAR13001)3)4)7)8)10)ControlBlock:LicenseType:I4',1'1,',1',1',DocketNumber:I0I50002EventDate'IOI11II11EventDescription andProba2)LicenseeCode'.'N'Y',R',E',G 0I0'0I-I0I0',5Cat:II/6)ReportSource9ReportDate'0'5'1111811 IbleConsequences:
~ILI~IIeIDurinsteadystateoperation alossofthe34.5KVsupplytofINo.12transformser occuredcreatingalossofoffsitepower/,toannatation.iscreatedalossofpowerto1Iussesand1andsaeguarbussesan11.Emergency D/G's1Aand1Bstartedonundervoltage signalIIandsuppliedpowertotheOVsafeguard busses.Thetemporary IIinterruption totheowersupplyforthe1Binstrument bus11)14)17)18)21)23)25)27)SystemCode'EAI12)CauseCode:',E',13)CauseSubcode:IAIComp.Code:/,~C/K/T/BIRIKI 15)Subcode;/X/16)ValveCode:jZ/~'-''7'/'ction Taken:IX'19)FutureAction:',Z',20EffectonPlant:',B',ShutdownMethod:IZI22)Houls'0I010I5IPrimeComponent Supplier:
ILI26)Manufacturer:
',J',1'I~2,0',
CauseDescription andCorrective Actions:',Thecausewasidentified toafaultinthe"B"Phasevacuumf',breaker switchwhichsuppliesthe12Bsparetransformer.
,The12transformer wasisolatedfromthe3.5KVbusandpower>',wasrestoredtotheNo.12transformer.
Thesafeuardbusses',,weretransferred bactoteirnormalsupplyandtheemerpency',
',DieselGenerators secured.28)30)31)32)33)35)36)37)39)40)41)42)43)44)45)FacilityStatus:',E',OtherStatus:1N/A1MethodofDiscovery:
IAIDiscovery Description~IOperator ObActivityReleased:
IZI3ContentAmountof'ctivity:,I/A ILocationofRelease:/N/AlPersonnel Exposures Number:100I0IDescription:
',N/AIPersonnel InjuriesNumber:',0',0',0',


ATTACHMENTTOLERFORM10)EventDescriptionandProbableConsequencescontd:'causednumerousalarmsandanapproximate105runbackto',5nuclearpower.ConditionswerestablizedbyoperationsI<personnelandplantoerationcontinued.
==
Description:==
 
IN/AILossoforDamagetoFacility:
IZIDescription:
IN/AIPublicity Issued:INIDescription:
/N/AlIOI9I5Iservationi ofRelease:IZI38)Exposures Type:',Z',NRCUSEONLYNameofPreparer:
ClairEdgarPhone:315-524-4446 x248
 
ATTACHMENT TOLERFORM10)EventDescription andProbableConsequences contd:'causednumerousalarmsandanapproximate 105runbackto',5nuclearpower.Conditions werestablized byoperationsI
<personnel andplantoerationcontinued.
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Revision as of 11:14, 29 June 2018

LER 81-007/03L-0:on 810418,loss of 34.5-kV Supply to Transformer 12 Occurred,Creating Loss of Offsite Power. Caused by Fault in B Phase Vacuum Breaker Switch Which Supplies Spare Transformer 12B
ML17309A154
Person / Time
Site: Ginna Constellation icon.png
Issue date: 05/11/1981
From: EDGAR C
ROCHESTER GAS & ELECTRIC CORP.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML17258B043 List:
References
LER-81-007-03L, LER-81-7-3L, NUDOCS 8105180308
Download: ML17309A154 (4)
v • d • e


Text

LER81-007/3L-0 LICENSEEEVENTREPORTCAR13001)3)4)7)8)10)ControlBlock:LicenseType:I4',1'1,',1',1',DocketNumber:I0I50002EventDate'IOI11II11EventDescription andProba2)LicenseeCode'.'N'Y',R',E',G 0I0'0I-I0I0',5Cat:II/6)ReportSource9ReportDate'0'5'1111811 IbleConsequences:

~ILI~IIeIDurinsteadystateoperation alossofthe34.5KVsupplytofINo.12transformser occuredcreatingalossofoffsitepower/,toannatation.iscreatedalossofpowerto1Iussesand1andsaeguarbussesan11.Emergency D/G's1Aand1Bstartedonundervoltage signalIIandsuppliedpowertotheOVsafeguard busses.Thetemporary IIinterruption totheowersupplyforthe1Binstrument bus11)14)17)18)21)23)25)27)SystemCode'EAI12)CauseCode:',E',13)CauseSubcode:IAIComp.Code:/,~C/K/T/BIRIKI 15)Subcode;/X/16)ValveCode:jZ/~'-7'/'ction Taken:IX'19)FutureAction:',Z',20EffectonPlant:',B',ShutdownMethod:IZI22)Houls'0I010I5IPrimeComponent Supplier:

ILI26)Manufacturer:

',J',1'I~2,0',

CauseDescription andCorrective Actions:',Thecausewasidentified toafaultinthe"B"Phasevacuumf',breaker switchwhichsuppliesthe12Bsparetransformer.

,The12transformer wasisolatedfromthe3.5KVbusandpower>',wasrestoredtotheNo.12transformer.

Thesafeuardbusses',,weretransferred bactoteirnormalsupplyandtheemerpency',

',DieselGenerators secured.28)30)31)32)33)35)36)37)39)40)41)42)43)44)45)FacilityStatus:',E',OtherStatus:1N/A1MethodofDiscovery:

IAIDiscovery Description~IOperator ObActivityReleased:

IZI3ContentAmountof'ctivity:,I/A ILocationofRelease:/N/AlPersonnel Exposures Number:100I0IDescription:

',N/AIPersonnel InjuriesNumber:',0',0',0',

==

Description:==

IN/AILossoforDamagetoFacility:

IZIDescription:

IN/AIPublicity Issued:INIDescription:

/N/AlIOI9I5Iservationi ofRelease:IZI38)Exposures Type:',Z',NRCUSEONLYNameofPreparer:

ClairEdgarPhone:315-524-4446 x248

ATTACHMENT TOLERFORM10)EventDescription andProbableConsequences contd:'causednumerousalarmsandanapproximate 105runbackto',5nuclearpower.Conditions werestablized byoperationsI

<personnel andplantoerationcontinued.

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