05000366/LER-1980-016-03, /03L-0:on 800130,w/reactor in Run Mode,Auxiliary Oil Pump Feeder Breaker Tripped While HPCI Auxiliary Oil Pump Was Running to Obtain Oil Sample.Caused by Failure of Coil of Time Delay Relay.Coil Was Replaced

/03L-0:on 800130,w/reactor in Run Mode,Auxiliary Oil Pump Feeder Breaker Tripped While HPCI Auxiliary Oil Pump Was Running to Obtain Oil Sample.Caused by Failure of Coil of Time Delay Relay.Coil Was Replaced

ML19294B018
Person / Time
Site:	Hatch
Issue date:	02/19/1980
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19294B010	List: 05000366/LER-1980-016, Forwards LER 80-016/03L-0 05000366/LER-1980-016-03, /03L-0:on 800130,w/reactor in Run Mode,Auxiliary Oil Pump Feeder Breaker Tripped While HPCI Auxiliary Oil Pump Was Running to Obtain Oil Sample.Caused by Failure of Coil of Time Delay Relay.Coil Was Replaced
References
LER-80-016-03L-01, NUDOCS 8002260591
Download: ML19294B018 (1)

LER-1980-016, /03L-0:on 800130,w/reactor in Run Mode,Auxiliary Oil Pump Feeder Breaker Tripped While HPCI Auxiliary Oil Pump Was Running to Obtain Oil Sample.Caused by Failure of Coil of Time Delay Relay.Coil Was Replaced

Event date:
Report date:
3661980016R03 - NRC Website

text

(J. S. NUCLEAR REGULATORY COMMISSION 8RC FORIA 366 LICENSEE EVENT REPORT CONTROL BLOCK: l l

l l

l l

lh (PLEASE PRINT OR TYPE ALL REOUIRED INFORMATION) 1 6

l C l Al E l I l H l 2 l@l 0 l 0 l 0 \\ 0 l 0 0l010l0l0l0l@ll.l1l1l1l1l@l l

l@

o i

9 LICENSEE CODE to 15 LICENSE NvYWEH JS 2G LaCENSE TvrE JG 51 wAT58 CON 7

[,"c' l L j@l 0 l 5 l 0 l 0 l 0 l 3 l 6 l 6 !@l 0 l 1131018 l 0 l@l 01 21 11 ol ?! Ol@

o i

8 60 61 DOCKET NLVUER 64 6J EVENT DATE 74 75 REPORT DATE 80 EVENT OESCRIPTION AND PROB ABLE CONSECUENCES h o

l With the reactor in the run mode, while runnine the HPCI Auxiliary 011 I

o a l Pump to obtain an oil seaple as required by the Oil Sampline Progran I

o 4

l Procedure, the Auxiliary 011 Pump Feeder Breaker tripped.

Personnel l

o s I immediately reset the breaker and successfully started the pump.

This

(

o e I event was not of a repetitive nature nor was public health and safety I

l o

7 l effected.

[

0 8

l 80

$YSTEM C AUS E

CAUSE

COMP.

VALVE CODE COCE SUCCODE COUFONENT CODE

$U8COCE SU8 CODE fo7Tl I c I r l@ [lj@ l A_J @ IP. IE lL l.\\ lY lx l@ LIJ@ l z I @

7 8

9 10 11 12 f2 td IW 20

$EQUENTI AL 7,CURRENCE REPCRT REVl510N EVENT YE AR RE PORT NO.

CODf TYPE NO.

LER RO O sgg,ar 18 lo l l-l 10 11 16 I [f_j i 01 31 l1 l-l O !.

a

_ 21 22 2J 24

G 21 2d 29 JO JI 32

.E AC ON O PLA?7 MET HOUas 5"

i D

pr 8.

5 PPLIE MANUFACTUREH i

l A l@LZ_lO I z l@

I z l@

lo lo lo lo I l_YJ @

l Yl@

W@

l cl ol 81 ol@

JJ 34 Ja J6 o

40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTICNS h

[~i o l An investigation into the cause of the breaker trip revealed that the I

coil, of a time delay relay, located in the rotor control center had I

gjij[

,, j,j l failed. This relay is used to series resistance in the motor armature.

I [T m l The coil was replaced and the pump was run successfully.

l 6

l 8

1 4

l So s 9 I

's*T AIEs*

C' s.

DISCOVERY QESCRIPTION s Pcv;ER oTHER STATUS NA l

Bl@l Ooerator Observation l

ITITl (,C j@ l0 l 2 l9 l@l AcouNT OF ACTivlTY @ l LOCATION Or nELEASE @

ACTIVITY CONTENT t

RETE AsEo Os RELEASE l

NA l

i 6

lZ l l

NA 7

3 3 10 It 44 45 80 PERSONNEL EXPOSURES NUUSER TYPE CESCRIPTION NA l

lOl0 0l@lZlhl i

7 PERsONNE't mJUd'Es r

oEsCRiPricN@

i NuunER NA l

y l0l0l0l@l 87 7

8 9 11 12 t

LOS: OF OR DAV ACE To FACILITY l

TYPE D ESCRIPTICN 8 () GQ [Zj@l NA l

r i

o T

u,

10 s0 U.l.o.J L1f@DE!CRIPTION l

na i

1111litifIilli ISSUE 68 69 80 ;

7 8 9 10 NAME OF PREPARER PHONE 4 s.

i' P

t f

NARRATIVE

REPORT i

t Georgia Power Company Plant E. I. Hatch Baxley, Georgia 31513

/

l Reportable Occurrence Report No. 50-366/1980-016.

I 1

On January 30, 1980, at 29% power, with the reactor in the run mode whfie running the HPCI Auxiliary 011 Pump to obtain an oil sample as required by the oil sampling program procedure, the auxiliary oil pump feeder breaker tripped. Personnel immediately reset the breaker and successfully restarted

}

the pump. An investigation into the cause of the breaker trip revealed i

that the coil of a time delay relay, located in the motor control center, l

had failed. This relay is used to series resistance in the motor armature.

[

l The coil was replaced and the pump was successfully run.

This is not a repetitive event. This event is not applicable to Unit I due to the utilization of different components for the llPCI Auxiliary 011 Pump.

l r

t:

1 t

l f

l l

Ii

}

I, e

e i.