05000269/LER-1981-009-03, /03L-0:on 810622,during Normal Operations,Startup Transformer CT-1 Locked Out.Cause Not stated.CT-1 Transformer & Bus Work Checked & Protective Relaying Checked for Malfunction Prior to Return to Svc

/03L-0:on 810622,during Normal Operations,Startup Transformer CT-1 Locked Out.Cause Not stated.CT-1 Transformer & Bus Work Checked & Protective Relaying Checked for Malfunction Prior to Return to Svc

ML20009G471
Person / Time
Site:	Oconee
Issue date:	07/22/1981
From:	Jackie Jones DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009G465	List: 05000269/LER-1981-009, Forwards LER 81-009/03L-0.Detailed Analysis Encl 05000269/LER-1981-009-03, /03L-0:on 810622,during Normal Operations,Startup Transformer CT-1 Locked Out.Cause Not stated.CT-1 Transformer & Bus Work Checked & Protective Relaying Checked for Malfunction Prior to Return to Svc
References
LER-81-009-03L-02, LER-81-9-3L-2, NUDOCS 8108040296
Download: ML20009G471 (1)

LER-1981-009, /03L-0:on 810622,during Normal Operations,Startup Transformer CT-1 Locked Out.Cause Not stated.CT-1 Transformer & Bus Work Checked & Protective Relaying Checked for Malfunction Prior to Return to Svc

Event date:
Report date:
2691981009R03 - NRC Website

text

e Macroatesee U. S. NUCLEAA REGULATORY Commeessacos LICENSEE EVENT REPORT EXHlBIT A ecurncLstociei l

l l

1 I e@

l tetaAss raiwr on rvre ALL ascusano inconuanom i

[7ITI l S IC ! N l E l El 1 l@3 01Ol-l0l0lol01nl-lOIOld4Il 11l1l11@nclrl@

. e oceases caos i.

wee

.~-na a

s wco.a n,e a i

a cow r I, o I i l C l L @ l0l 51 01 010 l2l 6l'9 @ln 16 I?l? I R I 1 @l0 I 7 I ?! 9 l A 11 l@

.e ooc.,

sen a se av:=r sare 2.

s aeraar oar.

svanT esscairnoN AMO eMoSASL3 CoMs40USMC15 h ion June 22, 1981, startup transformer CT-1 locked out for unknnun reasons.

I a

m i uring the time period that CT-1 was locked out. back-un nower was ve ri fi ed I D

i, i. i ; available from Keowee-l.

Thus, the health and safety of the pubif e were f

,,,,,,not affected by this incident.

I lo le 1 I f

10 i r l !

I s a is i i I

N s E $e l El Bl@ l Xl@ l Z l@ l TIR I Al NI S I Fi@ NoeIZl@ y @

su"E!e ccce consposeawr:cos su i o,,i e

ie i,

a u

,e is a

noue n eccuan=ca e.ent

= evises.

EveferveAa mePoste ssCL Coon TV e ge1.

6,,u nreo 18 11I l-l I O ! Ol 91 l/l 10 l 31 LL_I L-l 10 l agr

._2i a

a a.

a 2

n a

o a

n EE' ".cd"J o!!A*.*u*r W aune s

'U.'.'i"t"rIf oEe. 's"SSI inaav"Iac"E.Iem IX gl Xlg I Zig LZjg I O I O! 0; l gg lN Ig l L lg

[ G l 0 l 810 lg

a 2

s a

u

.i

<a cAuss cascaimcm Amo ccanaenvs Acnoss @

i, ; a, lThe reason for CT-1 locking out is not known.

The CT-1 transformer and buss !

l g ] work were checked for faults, and the protective relavine was checked for i

g l malfunction prior to returning control to Operations.

A more complete check I

,,,,, gwill be performed on the CT-1 transformer and switchgear during the current I t'6 1 I t'n i t I re fueline outace.

I ar=amerArus @ oiscow a5 osecoveav oescaianom @

• r nE scomen W W@ l 01910 l@l NA l~ W @l Operator Observation l

r a

g is u

=

=

se msount os acnverv @ l tocAnom er metaAss @

.etauso en=etsase l

li is j lZ l @ l Z!@l NA l

NA I

l e >,,,,,,,,,;,,,,,gl,,,

a

=

o.ca no @

1 u se, r,n l

li 171 10 l 0 l 0)@l Z l@l NA l

l r

a e u

e

,,,,,,,,,i,i,,,,ty,,

anc,vio @

- e.

lTlTl l0 l 0 l Ol@l Z NA l

oe go4=a eacury g Q Ql NA l

. e is g

"veue Nac use enty l2 i ol lN l@l NA I

IffIIIIIIIIIl e e is se se se

3. t. yones (704) 373-8197 l

I mAansoneneranen

,wons:

8108040296 810722 PDR ADOCK 05000269 S

PDR.