ML17266A214: Difference between revisions

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{{#Wiki_filter:U.S.NUCLEARREGULATORY COAIMISSION NRCFORM)OIIT.TTI9UCKNSKSCOQSI4~5'CSiISCNVMSSR35'5UCz:aISCTYPS3051Aa540,14LlCEINSEE EVENTREPORT'0tPLEASEPRINTORTYPeALLRECIUIRED INFORhIATIONI I[oaijP!LIIiLi0iIIi0Ol-OlOlOI0lp-00aItlIIQ.~QaCON'T~O13'"",,'~0IIO~l'OIIII050dlOOCHrUIVMSKA44ddKVKNTQATK1415RKPQRTQATK30EVENYOESCRIPTION ANOPROSASLECONSECUEiVCES QIODuringnormalsurvei'llance andpost-maintenance testing(T.S.4.8.1.1.2.
{{#Wiki_filter:U.S.NUCLEAR REGULATORY COAIMISSION NRC FORM)OI IT.TTI 9 UCKNSKS COQS I4~5'CSiISC NVMSSR 35'5 UCz:aISC TYPS 30 51 Aa 54 0, 1 4 LlCEINSEE EVENT REPORT'0 tPLEASE PRINT OR TYPe ALL RECIUIRED INFORhIATIONI I[oaij P!L I I i Li0 i II i 0 Ol-Ol Ol OI0lp-0 0 a I tl I I Q.~Qa CON'T~O 1 3'"",,'~0 I I O~l'O I I I I 0 50 dl OOCHrU IVMSKA 44 dd KVKNT QATK 14 15 RKPQRT QATK 30 EVENYOESCRIPTION ANO PROSASLE CONSECUEiVCES QIO During normal survei'llance and post-maintenance testing (T.S.4.8.1.1.2.
azamissiverelayK-49wasdiscovered tobesetincorrectly.
aza missive relay K-49 was discovered to be set incorrectly.
Thisresultedintheinability tolclosethe1ADGBKRbymanualremotemeans.Itdidnotpreventautomatic cacaos'ing ofBKRonadeadbussincethishadbeendemonstrated twiceafterthemainteriance hadbeencornleted.T~oafirstoccurrenc 13930SYSTKYICAUS!CAVSKCOMPvALYKCOOKCQOKSV5CQOKCCMPONKNT
This resulted in the inability tol close the 1A DG BKR by manual remote means.It did not prevent automatic cacaos'ing of BKR on a dead bus since this had been demonstrated twice after the mainteriance had been corn leted.T~o a first occurrenc 1 3 9 30 SYSTKYI CAUS!CAVSK COMP vALYK COOK CQOK SV5CQOK CCMPONKNT'008 suscoos susc as~S LJS EBS~1'*'""0>>JS>>0S 1 4 9 I0 I I l3 IS'IS I 9 SKOVKNTIAL QCCVRRKNCK AKPOAT, RKVISION'KRIRO KVKNT YSAR R!pQRT uo, COOK TYPS.'Q.Q>><<zaaz'80~~02 1"~m~03.~L~~0 l)34 38 31 5 35 0 sl 33 ACTION FVTVRS KFPKC 5HVTOOwu ATTACIaMKNT NARY PRIM8 COMP.COMP ON Kal T TARKN ACTIQN CN PLANT MKTHQQ HOURS LP SV8MITTKO FQRMSVS.5LlPPUKR MANVFACTVAKR LJSMS L'JS i>>S~LJS LJO MIS~S 34 38 all~40 41 43 44 41 CAUS'E DESCRIPTION ANO CORA!Ca IVE ACTIONS Q33 Electrical sources were verifzed in accordance with (T.S.4.8.1.1.2.A.4.
'008suscoossuscas~SLJSEBS~1'*'""0>>JS>>0S149I0IIl3IS'ISI9SKOVKNTIAL QCCVRRKNCK AKPOAT,RKVISION'KRIRO KVKNTYSARR!pQRTuo,COOKTYPS.'Q.Q>><<zaaz'80~~021"~m~03.~L~~0l)3438315350sl33ACTIONFVTVRSKFPKC5HVTOOwuATTACIaMKNT NARYPRIM8COMP.COMPONKalTTARKNACTIQNCNPLANTMKTHQQHOURSLPSV8MITTKO FQRMSVS.5LlPPUKRMANVFACTVAKR LJSMSL'JSi>>S~LJSLJOMIS~S3438all~4041434441CAUS'EDESCRIPTION ANOCORA!CaIVEACTIONSQ33Electrical sourceswereverifzedinaccordance with(T.S.4.8.1.1.2.A.4.
and T.S.4.8.1.1.1.A)
andT.S.4.8.1.1.1.A)
.The frequency permissive rela had been incorrectl set'uring routine maintenance the previous week.The MT DG BKR shut suc-cessively on a d rid bus twice after maintenance was complete.The relay OISCOV!Rr OKSCA<PTION QS~NA 30 I I I'3 LCSS OF CR OAMAOK~0 FACIUTY QA))4 sc A I r TI QN~ZQ4''o WSUC:TY ISSV!0 045CAIPT:CN
.Thefrequency permissive relahadbeenincorrectl set'uring routinemaintenance thepreviousweek.TheMTDGBKRshutsuc-cessively onadridbustwiceaftermaintenance wascomplete.
~LN 0~4 30 NRC USE ONLY 44 49 IO 305-552-3802 3 a1 H.A.Schoppman NAME OR PREPARER>OOEKSO~~~.I~ecpoint
TherelayOISCOV!Rr OKSCA<PTION QS~NA30III'3LCSSOFCROAMAOK~0FACIUTYQA))4scAIrTIQN~ZQ4''oWSUC:TYISSV!0045CAIPT:CN
~as corrected and the surveillance was corn leted successfull 9 FACIUTY.~gp MKTHOQ OI 3~*TVS!I POWKA OTHKR STATUS~QlscOVKAY a 0 Qza~00 I 0 Qa IIA~BQaz 1 4 I0 I)44 45 ACTIVITY CONTL'IT RKI.KASKO Ql AKLKSASK AMOUNT QF ACTIVITY Q)S LOCATION aF RKLKAS 4 Q)8~Z Q))~ZQSS NA NA 1 3 IO II 44 PKRSQNN KI.KXPQSVR K 5 1 5 3 II IS Is PKRsoNNKL INIVAIKs lII'MS!A 043CAIPTIONQAI
~LN0~430NRCUSEONLY4449IO305-552-3802 3a1H.A.Schoppman NAMEORPREPARER>OOEKSO~~~.I~ecpoint
~~i~no o Qa NA 0 0 r'}}
~ascorrected andthesurveillance wascornletedsuccessfull 9FACIUTY.~gpMKTHOQOI3~*TVS!IPOWKAOTHKRSTATUS~QlscOVKAY a0Qza~00I0QaIIA~BQaz14I0I)4445ACTIVITYCONTL'ITRKI.KASKO QlAKLKSASKAMOUNTQFACTIVITYQ)SLOCATIONaFRKLKAS4Q)8~ZQ))~ZQSSNANA13IOII44PKRSQNNKI.KXPQSVRK5153IIISIsPKRsoNNKL INIVAIKslII'MS!A043CAIPTIONQAI
~~i~nooQaNA 00r'}}

Revision as of 12:26, 7 July 2018

LER 80-021/03L-0:on 800507,during Normal Surveillance & post-maint testing,1A Diesel Generator Failed to Synchronize to Emergency Bus.Caused by Frequency Permissive Relay Being Set Incorrectly.Relay Setpoint Corrected
ML17266A214
Person / Time
Site: Saint Lucie NextEra Energy icon.png
Issue date: 06/06/1980
From: SCHOPPMAN M A
FLORIDA POWER & LIGHT CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML17208A705 List:
References
LER-80-021-03L, LER-80-21-3L, NUDOCS 8006170551
Download: ML17266A214 (2)
v • d • e


Text

U.S.NUCLEAR REGULATORY COAIMISSION NRC FORM)OI IT.TTI 9 UCKNSKS COQS I4~5'CSiISC NVMSSR 35'5 UCz:aISC TYPS 30 51 Aa 54 0, 1 4 LlCEINSEE EVENT REPORT'0 tPLEASE PRINT OR TYPe ALL RECIUIRED INFORhIATIONI I[oaij P!L I I i Li0 i II i 0 Ol-Ol Ol OI0lp-0 0 a I tl I I Q.~Qa CON'T~O 1 3'"",,'~0 I I O~l'O I I I I 0 50 dl OOCHrU IVMSKA 44 dd KVKNT QATK 14 15 RKPQRT QATK 30 EVENYOESCRIPTION ANO PROSASLE CONSECUEiVCES QIO During normal survei'llance and post-maintenance testing (T.S.4.8.1.1.2.

aza missive relay K-49 was discovered to be set incorrectly.

This resulted in the inability tol close the 1A DG BKR by manual remote means.It did not prevent automatic cacaos'ing of BKR on a dead bus since this had been demonstrated twice after the mainteriance had been corn leted.T~o a first occurrenc 1 3 9 30 SYSTKYI CAUS!CAVSK COMP vALYK COOK CQOK SV5CQOK CCMPONKNT'008 suscoos susc as~S LJS EBS~1'*'""0>>JS>>0S 1 4 9 I0 I I l3 IS'IS I 9 SKOVKNTIAL QCCVRRKNCK AKPOAT, RKVISION'KRIRO KVKNT YSAR R!pQRT uo, COOK TYPS.'Q.Q>><<zaaz'80~~02 1"~m~03.~L~~0 l)34 38 31 5 35 0 sl 33 ACTION FVTVRS KFPKC 5HVTOOwu ATTACIaMKNT NARY PRIM8 COMP.COMP ON Kal T TARKN ACTIQN CN PLANT MKTHQQ HOURS LP SV8MITTKO FQRMSVS.5LlPPUKR MANVFACTVAKR LJSMS L'JS i>>S~LJS LJO MIS~S 34 38 all~40 41 43 44 41 CAUS'E DESCRIPTION ANO CORA!Ca IVE ACTIONS Q33 Electrical sources were verifzed in accordance with (T.S.4.8.1.1.2.A.4.

and T.S.4.8.1.1.1.A)

.The frequency permissive rela had been incorrectl set'uring routine maintenance the previous week.The MT DG BKR shut suc-cessively on a d rid bus twice after maintenance was complete.The relay OISCOV!Rr OKSCA<PTION QS~NA 30 I I I'3 LCSS OF CR OAMAOK~0 FACIUTY QA))4 sc A I r TI QN~ZQ4o WSUC:TY ISSV!0 045CAIPT:CN

~LN 0~4 30 NRC USE ONLY 44 49 IO 305-552-3802 3 a1 H.A.Schoppman NAME OR PREPARER>OOEKSO~~~.I~ecpoint

~as corrected and the surveillance was corn leted successfull 9 FACIUTY.~gp MKTHOQ OI 3~*TVS!I POWKA OTHKR STATUS~QlscOVKAY a 0 Qza~00 I 0 Qa IIA~BQaz 1 4 I0 I)44 45 ACTIVITY CONTL'IT RKI.KASKO Ql AKLKSASK AMOUNT QF ACTIVITY Q)S LOCATION aF RKLKAS 4 Q)8~Z Q))~ZQSS NA NA 1 3 IO II 44 PKRSQNN KI.KXPQSVR K 5 1 5 3 II IS Is PKRsoNNKL INIVAIKs lII'MS!A 043CAIPTIONQAI

~~i~no o Qa NA 0 0 r'

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