05000368/LER-1981-018-03, /03L-0:on 810506,during Mode 6 Operation,Emergency Diesel Generator 2 Received Lockout During Load Rejection Test.Caused by Antimotoring Relay Holding Coil Adjustment Intolerance.Adjustments Made.Procedures Revised

From kanterella
(Redirected from ML20004C355)
Jump to navigation Jump to search
/03L-0:on 810506,during Mode 6 Operation,Emergency Diesel Generator 2 Received Lockout During Load Rejection Test.Caused by Antimotoring Relay Holding Coil Adjustment Intolerance.Adjustments Made.Procedures Revised
ML20004C355
Person / Time
Site: Arkansas Nuclear Entergy icon.png
Issue date: 05/27/1981
From: Shively C
ARKANSAS POWER & LIGHT CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20004C354 List:
References
LER-81-018-03L, LER-81-18-3L, NUDOCS 8106030239
Download: ML20004C355 (1)


LER-1981-018, /03L-0:on 810506,during Mode 6 Operation,Emergency Diesel Generator 2 Received Lockout During Load Rejection Test.Caused by Antimotoring Relay Holding Coil Adjustment Intolerance.Adjustments Made.Procedures Revised
Event date:
Report date:
3681981018R03 - NRC Website

text

r-j

,~

(J) wnC r on u ses u. s. Nueta A A REGUL AfoFiY CORAheesseON LICENSEE EVENT REPORT EXHIBli A c0NTmot stock: l l l 1-I l l

trLEASe rn NT on Tyre ALL neouinto sNeonuAtioN p8 I AIR l A l Nl 0 l2 lgl90l0l-l0l0l0l0l0l-l00lgl4l1l1l1l1l g

1 9

LsC*a, Sit cQOs le 1

LICtN5% NUMelm 25 J6 Lockt. t e vet Je 67 A te CON'T -

po O pts !O I 5 l0 l01013 l 618 l@l 0151016 l 8 l 11@l 015 l 217 I 8 l 11@

i 60 DoCatT Nunseen 88 85 EVENT DATE 34

'l 8't,oniontt 80 EVENT DESCRieflON AND PROSAsLE CONSEQUENCES h rasi i During Mode 6 operation, Emergency Diesel Generator (EDG) #2 received a r

o i generator luckout during a load rejection test.

EDG #2 was out of service o.

i for preventative maintenance and the 18 month surveillance testing was [gg i eing conducted prior to declaring it operable.

This is a non-valid j

b I failure as defined by Reg. Guide 1.108 Rev.1, Position C.2.e(7). There i o.

I has been one failure in the last 100 valid tests. The redundant EDG and i o,

I offsite power was available meeting requirements of T.S. 3.8.1.1.

Similag

. eotoLtRby-MB/Ul-pp.

ggprtable per I.5. 4.6.1.1.3 pursuay to 1.5. b.W1.9.b.

i

(

cool (cot SveCoot COMPONENT Cout

%unte>ut nuecoot 8

lE ! El@ LE_J@ la_.JG LRI El L i AlY I XI@ LDj@ @_J @

IAI''

"I

@,a,',g..o

- vtar aa 1 8111 L-J 1011'18i a

10:3 1 Ll-J L--J u

25 22 23 24 26 23 2a 79 Jo 31 3J T&E AC ta i uit MovR$ ??

$8 IT

,o vet

$v t MAN,

En LfJ@LZ.J@ IZ-.J@

L.7J@

10101 01 o I LNJ@

LYJO LAJ@ IG l 018 l 0 l@

33 34 JS 36 3'

40 el 42 e3 as op CAUSE DESCRIPTION AND CORRECflVE ACTIONS h i The anti-motorino relav holdina coil ad.iustment was found to be out of I

i o [g-] I tolerance. This adjustment is normally considered to be a " factory setting."

1 Adjustments were made & EDG #2 load rejection test was successfully com-i i

Lpleted.

Procedure was revised to include relay checks. Similar relays on

(_E_DG #1 and Main Generator are being checked utilizing revised procedure. i i.

'd*.'D7 o,tatvius @ "e M,17 o,,co,t,one,,,,no,,@

sroota LHj@ loI of a l@l NA I LBJ@l Surveillance Testing I

  • .!mit, canor

'.8 a

a a

vou,,1 o,,c m,1, @ l toc.,,o,,,,,,t a ut @

atuut@oo,atuutIZ_.J@l NA Lz.J l

NA i c l

,,vo.o '* n,on",

a a

,t..

t otu..1,. @

a.

n,,

10101 Ol@LZ J@l NA i i l

' ' t son ~ti'.,v','in a

onc.,,1o-@

ou..Ia

- E. 8 101 010 l@l NA l

' 'os,s,o, oa,oj.,ct"o.cian g a

(J.j@l NA l

')

'"'"*d'?c

.,,,o @

NaC usE oNLv

,I.,NI@l NA 1 llllllltigggl ut

= a Chris N. Shively SkMGM

~

NAwforenEPAnen

,s y,;

8106030fJ1