ML20086F949

From kanterella
Jump to navigation Jump to search
Telecopy AO 75-67:on 751021,diesel Generator Breaker E-4 Inoperable.Caused by Inoperative Charging Motor Failing Due to Brush Wear.Breaker Replaced
ML20086F949
Person / Time
Site: Peach Bottom Constellation icon.png
Issue date: 10/21/1975
From: Ullrich W
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
AO-75-67, NUDOCS 8401090717
Download: ML20086F949 (1)


Text

P s

f i

n

c U

- ~ _

m-

..a.

1

_a..

_.,- ~

l PIIILADELPHIA ELECTRIC COMPANY /

Peach Botton Atomic Po.ver Station k

I

(

Delta. Pennsylvania

\\

17314 October 21. 1975 Mr. James P.

O'Reilly, Director Office of Inspection and Enforcenent, Region 1 United States Euclear Regulatory Commission pg hdig/y/t2.C.

631 Park Avenue 4

King of Prussia, Pennsylvania 19hD6

_Su bj e ct :

Abnormal Occurrence PL-Hour Noti fication Confirming R.

S. Fleischmannfs' phone conversation with Mr. Walt Baunack, Region 1 United' States Euclear Reguintory Concission on October 21, 1975.t

Reference:

License Rumber DPR LL

\\

Technical Specification

Reference:

3 5.F.1

^

Report No.:

50-277-75-67 Report Date:

October 21 1975 Occurrence Date:

October 21, 1975 Facility:

Peach Botton Atomic Power Station R.D. 1. Delta, Pennsylvania 17314 Identification of Occurrence:

j

.E'-L diesel generacor breaker (E L2) inoperable.

Conditions Prior to Occurrence:

4 About 555 power.

Description of Occurrence:

While running E-b diesel generator for weekly surveillance failed to close.

test, breaker j

Designation of Apparent Cause of Occurrence:

The breaker charging spring was not charged following previous cpening.

It was determined that this was due to an which failed due to brush year.

inoperative charging motor i

1 Analysis of Occurrence:

T The diesel generator was l'ncapable of supporting the E-h2 LEY bus.

However, the' plant is designed to accept this failure.

C'"

1.. Corrective Action:

.c*

The breaker was replaced with a spare at the time o-f the occurrence.

The failed breaker vill be repaired. All other si=ilar breakers in r

both units,were checked to be charged.

g.

Failure Data:

None previous.

t Very trui

yours, r -

W.

T.

Ullrich. Superintendent

  • g Peach Botton Atomic Power Station I

9 4

S n.

. y-i s,

I e

e s.

-sww--

O e

m

-r--

+