ML18087A804
| ML18087A804 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 03/24/1983 |
| From: | Rahe E WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP. |
| To: | Vollmer R Office of Nuclear Reactor Regulation |
| References | |
| NS-EPR-2740, NUDOCS 8304050644 | |
| Download: ML18087A804 (2) | |
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Wesiinghcusa Elecnlc Cciporation
.*e Water Reactor Divlslons
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. R'ichard H. Vo11mer, Di ~ctor Di Yi si on of Engi neeri r:g
\\/, ~ oo!l fi 1-1
/oF L Office cf Nuclear Reactor Regulation U.S.
fj~ciear Reguiator.1 Commission Phi11ips Building 7920 Norfolk Avenue Bet~sda, MD 20014
Dear Hr. Vo11mer:
S0x 355 r:!'.:;..."'.lig'.l!"e.rmf.~i;: 1m1 NS~EPR-2740 Ha rch 24:t 1983 This letter is intended to provide you ~1th the information you
~quest~d on March 23, 1983 cor.-cerning work perfom~d by the Westi~ghouse Field Service Engineer (FSE) at the Salem Unit 1 site fh Jar.wary 1983.
PSE&G contacted the Hillside, N ** J. office of the Westir,gh~use Apparatus Service Division to provide technica1 assistance
_to Sa!e::i ;:;ersonr,el on the disassembly, inspection, maintenancet and r-e as ss-;-~ 1.Y of the type DS-50 b ri: akers.
TTie #estinghouse. engin-eer t,*as at the Sa1em site from January 13, l983t until Jer1t:ary 18, 1983.
During this pericdi he worked with Sah;:n persorire1 on t!~_ 13, i4~ 17, end 18th.
~o work fl'~S -perforr.-ed by the
\\./estir,gtouse engineer overt~ weekend (January 15 and 16th). During this period the West~nghouse FSE assisted in work.on on1y tri'O breakers; one reactcr trip breaker and one rr.otor generator set breaker.*
- In perfoming the reactor trip breaker mai*nter.ance, the Westinghouse FSE c1eaned tr.e moving core of the UV trip attacrmen~ end lubricated the core ar.d 1i nkage with Calf or.ex 78-A.
No other adjustn-:ents or mod1fic~tions 1<rere perforr.ied or recomrn-ended to the Sa1em personne1 for
- the UV ::t tac rnent. ihi s b r'aker was then rei nsta 1i ed.
The can of Ca1forex i8-A was left with the PSE&G personnel.
If you b **e any questi ens, p 1ease contact me.
Ver::/ truly yours,
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~~uc1ear Sarety~partrnent
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- A copy of the FSE's Apparatus Service Report is attacried.
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I CC VER FCU. O'n1N"G POI Ni$ CN EACH Jv""S A.~ NU~~ ?Af!AfiRA ?HS.c:;x..\\CTL 'f AS SHOWN 1)" ~e DB-.SO A~.,.. Clli;uit B=~:-* :!t:r&-it
- 1600, 600 VAJ;~ S-0 #24Y7269B, ?1.u:chssed en :G~o. *#!~5~74-SO #7iS906
.3) ~'?ose ~f ~it ';,R.S ta. ;rr:.."7ida tecfurical assista~e.e ori tha diS.t.asscily, inspection> ::..'3int~ce a::'.'t-i l'.~s-cilj 0£ ths type DB-50 b~~r 4}.B:ree-<.ar ;.-as -:~ad f~ its ~ell. Tn.are ~s a. great ~t of dus~ crv~'t" all co~cp.e::it:s 0£ t:hS breabr aM c.ell.
eus~~-: claitl::.d braaker did iJ.Ot trip *.. "hen Y-olt:;;:;.ge ;.;-as :;:e::;roved fX'cr.:l ~arvclb.gr;. u!:i.it.
Suhs.equ.t-nt test on th~ bre.ake::t "lo.i:i.il~ b~erk"":: w-as en the W"Tk heztc.h shc-w<!::d th.g U:!ldervoltage u:rit; W"Ould l~ng-u?"
at t:kes~ t.t:.at i~ th>i bre,,.!.*,..r \\/.-as mam:ally closed," and should ha";'e tripped.
i~~d.ia.t~ly,s:L!:ce the 1t"!re~olt.sg~ u*1"'it ~+a5 ~ot enargiz~~ h9w~e~. the b=~r r~s.ined clcs~~. A ligh~ ~p on the fr~ of t.ha bte.ake= was* ~i.l.ffi~ient to unl:d.i:d tbe,_'"':'ldervoltaga =it, Sci t1"ip tha bre~r. T::ie ba.ck plate of the t..m:far..-oltag~ unit ~s ::~oved, ~
the ~ng e.o-re was cleaned* *.. C9re s--;d l~g;.e
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- :ic.a:::!!d irlth Call'~~ 78.A.
- O::atlat' ;..-as. e.~t op~-::ated* ::;.ani.iallj!'**An.d ** * *
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t:her~t:.n* witllout a failure..
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The br~e~ ;..*as co::pletely cleaned ~s *-:as tb.~ :res~cti:ve cell. *we ir.specfod the "contacts for heating o:: cu...-fr.g.
They w~:-e cleaned" aci dressed where' necessa-:Y:
~e also checked a.lighm-:e~t~ tra~el, and f ollc-~ through of the ~o~tac~s ~-hile closing the b~e.aker.
The oech..an.is:::i -...-as che~d for loose or worn parts or hard';.,.-are.
A !:rl.cror.:;:i.
~es!.st~~ce.read~ng of eacli ~cle.~rnie ~stake~ and the pr:ina-ry and secondary contacts ware oegge=ed.
3~e.akar was then returned to its*rcspective cell and ~-ithout ~tensicn rails~
took t.;-~ an4 perse.rvere.-=.ce.
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