05000293/LER-1981-011-03, /03L-0:on 810402,recirculation Pump B Motor Generator Set Tripped Resulting in Drive Motor Trip & Generator Lockout Alarms Sounding.Cause Not Determined.Set Returned to Svc

From kanterella
(Redirected from ML20003J322)
Jump to navigation Jump to search
/03L-0:on 810402,recirculation Pump B Motor Generator Set Tripped Resulting in Drive Motor Trip & Generator Lockout Alarms Sounding.Cause Not Determined.Set Returned to Svc
ML20003J322
Person / Time
Site: Pilgrim
Issue date: 05/01/1981
From: Mcloughlin M
BOSTON EDISON CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20003J321 List:
References
LER-81-011-03L, LER-81-11-3L, NUDOCS 8105110265
Download: ML20003J322 (1)


LER-1981-011, /03L-0:on 810402,recirculation Pump B Motor Generator Set Tripped Resulting in Drive Motor Trip & Generator Lockout Alarms Sounding.Cause Not Determined.Set Returned to Svc
Event date:
Report date:
2931981011R03 - NRC Website

text

.

N j s4 U. S. NUCLEAR REGULATC3Y CCMMIS$3CN Nrc po:

mm

'g LICENSEE EVENT REPORT ID.

V OONr4GL 5 LOC <: l l

l i

I l lh (PLEASE PRINr C A TYPE ALL AEcutREC INFC AMATICN) t 5

t o l i l l MI Al Pl P! Si ll@i O 10 l-1010101010 l-1010 l@l 4 l 11 II il 1l@lu;-ru@

l j

r s e L::sssaa ::ca is is ucessa savsea

s a

ucassa rves a CON r fol'l

"C/y lL @l01510 l- ( 012 l 913 Ql 01410121811 @l O f S I 01 11 81 1l@

3:

i e

sa si Occ<stsuves.

+4 sa svast:4:s 4

s av:ar 04:s as EV ENT 3E50R6*TICN ANO 78CS ABLE 00,NSECUENCES h l

Ioi2II At approximately 1102 hours0.0128 days <br />0.306 hours <br />0.00182 weeks <br />4.19311e-4 months <br /> on April 2, 1981

'3' RecirculatiCn Pu=p M.G. Set tripped.

,a,3i l

" Drive Motor Trip and Generator Lockout" alar =s were received in the Control Room. r 13 i 4 l l An im:.ediate investigation was initiated, the NRC operatl'5ns center contai:ted, andi ~

iaisjl a controlled shutdown initiated. Follewing the inveslisation. the Lockout was lE

{ a is l I reset, the

'3' Recirculation otro restarted. and a never ascensien co enced.

1 '"

ic i7! f f

~

i a ia l i I

50 7

sa SYSit u AuS E CALS!

M*.

VALvt

t
t Sut:::t C v8CNEN*:::4 SLS ::E 368:006 l313l lC 13 l@ lX l@ lZ l@ l ZI Zl Z: Zl Zl Zl@ [ Zl@ (Z l@

7 4

9 13 in 12 13 14

'4 2a SE ut%'1AL 000'424 ENC 1 ags:g7 agvisrCN

- ga l's tN? v t a a REPCarN:.
t Tv8E NC.

@l,y,aC I 8 l 1I l-1 10 11111 I/l 10 13 I IL I l-l iOI g _a 2:

2 2

a

7
s a
a 2

o

v,

..,vt.v::e..

u.~...esnr.

E.

s,.u :em 2: 2: on s,.:

ierie~.ura.

~,.5:

mf va c:

- ecas
.B oirs:

.c..ui.

u

r.ae run.:ri:~

IZ1@lZi@

l 3 !@

l Al@

l 01 01 01 si IN i@

IN l@

lZi@

lZl919191@

22 24 a

s si ao ai 42 42 u

7 OAusE OESCRIP' CN ANO 00 A AECrlVE A0rtCNS

{ij3i i Panel control relav tarzets and the iKV breaker tareets orovided ne clue to the I

tiit i I cause o f the tri'.

Examination of the arrreer**t= "**a*=

      • *', M. C. Se t and a f

iii2i i double check of the oossible trio causitive devices vielded no acoarent exolanation. I i a j l The M.G. Set was returned to service and no further sourious tries have been l

i I

m I e merienced.

i se sT

% 80wE4 CD.EA SrAr.S

$ c, ay Ois;;vg.y gs;p:,ricy iiisIIEl@ l11010J@l N.A.

I i Al@l Operational Event l

a w

2!nvir, estnr 8

l i n i i Zi @: : ijj@l

.ucu~re,ic,viv @ l Lec2r cs :,...r m @

.iLi m l

N.A.

l N.A.

7

$ 9 10

i 44 45 30 8185CNNEL DPOSua gs Nuv114

'v't Ots:S t * ?:0N l i ! 7 ! l Oi 01 0 @l Z!@i N.A.

I

=

,5., s,a. a.,

isc,,,,~@

suo...

j e n t 101010!@l N.A.

l 7

n u

,a L:53 Cs Om cava;g ?3.a;;g*v

  • vpf E SO M'e C N N.A.

i

- l r I a i I Z l@l 7

4 i to gg

; 8 U Ci fv sp;(gg ;ggy issue-

ss:=im:s I: IollN[hl N.A.

I i i i liIil If I! Ij M. Thonas McLoughlin 61Y/6-7900 "l

1LEs$d 8105 Ca> E m sa

- cN =:

i