ML20086C004

Interim Deficiency Rept Re Fan Coil Unit Motor 15 Failure to Meet Test Requirements.Initially Reported on 760611.Fan Coil Unit Motor from Unit 1 Installed in Place of Motor 15.Faulty Motor Returned to Westinghouse for Repair

ML20086C004
Person / Time
Site:	Salem
Issue date:	07/01/1976
From:	Schwalje E Public Service Enterprise Group
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20086C002	List: ML20086C004
References
10CFR-050.55E, 10CFR-50.55E, NUDOCS 8311220532
Download: ML20086C004 (4)

Text

l '.

-  ?

OPmG o

~

Public Servico Electric and Gas Company 80 Park Place Newark, N.J. 07101 Phono 201/622-7000 i l

July 1, 1976  ;

Mr. Jame s P. O 'Reilly, Dire ctor U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. O 'Reilly:

FAN COIL UNIT MOTOR NO. 15 NO. 1 AND 2 UNITS SALEM NUCLEAR GENERATING STATION On June 11, 1976 a verbal report was made to Region 1, Office of Inspection and Enforcement advising that a Fan Coil Unit Motor on No. 1 Unit, Salem failed to meet the test requirements in starting reliably at low speed. This report was in accordance with the provisions of 10CFR50.55(e).

The following is a detailed analysis and report on the subject:

DESCRIPTION OF DEFICIENCY The Fan Coi:1 Unit Motors used at Salem. are rated loo /300HP, .

460V. During the initial test procedure, the No. 15 Motor failed to start on the low speed setting. The motor was removed and sent to the Westinghouse Repair Facility in l

Philadelphia to diagnose the problem and effect repair.

At the repair shop, the unit was disassembled and a thorough inspection of the motor stater and rotor revealed no deficiencies. The motor was reassembled and successfully passed tests, both loaded and unloaded, at the repair shop.

The motor was returned to and reinstalled at the site.

l Af te r several successful starts, the motor exhibited inter-

! mittent starting problems identical to the initial difficulties.

Following the second series of starting problems, the motor was returned to the Westinghouse factory at Buffalo for a more comprehensive evaluation. This investigation is currently in progress and a resolution of the problem is expected shortly.

~

8311220532 760713 PDR ADOCK 05000272 6 PDR b6 5 h The Energy People .

v.-... -

c-o o I l

. l l

• l Mr. James P. O'Reilly 7/1/76 i

l l

SAFETY IMPLICATION I

The problem was discovered during the initial testing phase as part of the planned startup program and, therefore, the health l and safety of the public were not affected by the' test failure, j CORRECTIVE ACTION A fan coil unit motor from the Salem No.-2 Unit has been trans-ferred to No. 1 Unit and installed in place of the No. 15 Fan

, Coil Unit Motor. It was tested on June 18, 1976 and performed satisfactorily to date. The faulty motor returned to Westinghouce will be corrected and fully tested to meet the specified' require-ments in the No. 2 Unit, Fan Coil Units.

The results of the Westinghouse correcti.e action will be at the site for future review following completion of work. No further reporting of this item is contemplated.

(

Should you require additional information our engineers will be-available to discuss the details with you. .

Very truly your',s l .

. d b ";

E.N. Schwalde Manager of Quality Assurance Engineering and Construction

, Department l

CC: Dr. Ernest Volgenau ,

Bethesda, Md.

9 1

6 e

, , -- /, -

-a,- , , -4

w E-jo ;)2 P' -V/

=

O O = = mer E pLJ L_Jw&CU E

i Pubhc Service Electric andGas Compbny 80 Park Place Newark, N.J. 07101 Phone 201/622-7000

[ *

_- July 1, 1976 E jp.g f r

= A,  ::4 0. E gj . . . -~ , . '

F-Mr. Janes P. O'Reilly, Direetor Ni5f :L;-l ,.

F U. S. Nuclear Regulatory Commission g g.'f ,.t ,(.

h 3 *V. 6,3;, g Gy,.

Office of Inspection and Enforcement .

$$ $d ':..

5 Region 1 rk 8,J .A.s. [

h E. j $ .f *..

E- 631 Park Avenue # % 4.CrDI..D King of Prussia, Pennsylvania 19406 > Dgf%%'*Tg .g .

M s;.tt 7 I ..

Dear Mr. O'Reilly:

N  :

C FAN COI L UNIT MOTO R NO . 15

• $d'P ~ f E-

• . ~+j)ff (~36

, NO. 1 AND 2 UNITS 4,.)c? ; w:.g. .

f SALEM NUCLEAR GEUERATING STATION g g.)f,[. i - ,

k On June ll, 1976 a verbal report was made to Region 1, Office I.' ~J', " .bMH h of Inspect, ion and Enforcement advising that a Fan Coil Unit E

Motor on No. 1 Unit, Salem failed to meet the test requirements A ./ ,

5 E;-

in starting reliably at low speed. This report was in accordance with the provisions of LOCFR50.55(e). [k.Q-4: 4.~) % '

f: >f .

?

" R,?. 8MGi-

?

g The following is a detailed analysis and report on the subject:

.('t..: :. 4 %

DESCRI PTIO N OF DEFICIENCY .

Q.3{J{.v.

=

~

y ;.

% The Fan Coil Unit Motors used at Salem are rated LOO /3OOHP, .

p 460V. During the initial test procedure, the No. 15 Motor jM.  ;; j' h h -c P failed to start on the low speed setting. The motor was " '

.. m , . . ., t .

I removed and sent to the Westi,nghouse Repair Facility in .-g,;;

E E

Phila de lph ia to diagnose the. p rob lem and effect repair.

4~l+#.W 7 :.

. ,-~ , y

'- At the repair shop, the unit was disa s sembled and a thorough inspection of the motor stater and rotor revealed no

_. deficiencies. The motor was reassembled and successfully

. passed tests, both loaded and unloaded, at the repair shop.

The motor was returned to and reinstalled at the site. .

After several successful starts, the motor exhibited inter- .

L mittent starting problems identical to the initial difficulties.

Following the second series of s tarting problems , the motor was returned to the Westinghouse factory at Buffalo for a more -

comprehensive e va lua t i o n . This investigation is currently in progress and a resolution of the problem 'is expected shortly. -

m

-f

(.  ! l

0 0 .

Mr. James P. O ' Reilly 7/1/76 ~

i-SAFETY IMPLICATIOU __

The problem wa s discovered during the initial testing phase as .

part of the planned startup program and, therefore, the health i and safety of the public were not affected by the test failure.

. CORRECTIVE ACTION .

A fan coil unit motor from the Salem No. 2 Unit has been trans- _

ferred to No. 1 Unit and installed in place of the No. 15 Fan Coil Unit Motor. It was tested on June 18, 1976 and performed '

satisfactorily to date. The faulty motor returned to Westinghouse c will be corrected and fully tested to meet the specified require- -

T ments in the No. 2 Unit, Fan Coil Units.

The results of the Westinghouse corrective action will be at the _

site for future review following completion of work. No further -

reporting of this item is contemplated. . .. 4 Should you require additional information our engineers will be available to discuss the details with you.

Very truly yours, _

( .(4..'. ..:;yA, pv3 E. N. Sch lje Wcr.r Manager of Quality A s surance M l Engineering and Construction .. > ;.

Dgpartment  ;.['<.

y.s .

7.  % :, c

. qn. ,i; CC: Dr. Ernest Volgenau . GN Bethesda, Md. pi .

,Q lt ~9

? .,'T f

.kisY , e p f' . i V .

4'

.3

, 7 ..

t L..- ..- .

,A.

~

h. ' ,-

', [r r'

ig

.k

• 6 c ,e .o

%., T j _'

.' ,[ 'nh . -

. . **,.F

..g u , .

.o . -

B;i-a,

' , , - iY, .,( Jj . h '._r, .

Y.'. 3 , i,' -N.I..

.,1., [' - . * 'f ' #%.- Ip d'4 ' ,s#p, *e ..!

9.g,j w' g a., @- [. ,3 e

' , . 'i

. . (( .- [-

'[ .*i$ , ,* .,.g,,

,i f ., ., .= - - -

C.% .4 ~ y :w.? . %:.,.7g u9 w "y% y *."M ' h:; .' i . :.h.? : "- Q i- . ,

@ ."; 1 .

'[ ~' -; - , * .~ '

b ~

. '., ~,

,i

,t

. r r . -~*,-Q

~ ,. .: .. # . J r*

.*f

. h , .., , d .4 .' ,'

i- ,  %. ..l- - % ..- . 'r.- -

'9, [, a

.- w: . - . .