ML18087A710

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Slide Presentation Entitled Commission Briefing Re Salem Event on 830225
ML18087A710
Person / Time
Site: 05000000, Salem
Issue date: 03/02/1983
From: Eisenhut D
Office of Nuclear Reactor Regulation
To:
Shared Package
ML18087A711 List:
References
NUDOCS 8303150633
Download: ML18087A710 (35)
v • d • e


Text

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SALEM 'EVENT --..- BRIEF I NG OUTLINE SALEM EVENT b. EVENT *DESCRIPTION.* ~o ISSUES. RELATING TO RESTART . GEHERl.C: CONSIDERATIONS- -** - .~

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'o. SOLID STATE PROTECTION SYSTEM CSSPS) o TRIP BREAKER HISTORY EVENT #1 DESCRIPTION FEBRUARY 22., 1~83 -.

  • EVENT #2 DESCRIPTION

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  • BREAKER CONTROLS FOR C[OSTNG AND OP~N I NG. CVIA SHUNT COi[).

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  • REACTOR TRIP BREAKER ~'OPEW'.

SSPS DISPLAY -. BREAKER -CONTROL PUSHBUTTON 2~ ROD POSITION INDICATORS.

3. ROD BDTTOM LIGHTS
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SECONDARY REACTOR TRIP ALARMS (l:,-NE.GATIVE,RATE TRIP - ...r

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  • AUGUST 20;. 19~

_: *. -.UNll 2 "B" REAC_TOR TRIP BREAKER FAILED SSPS S.URVEILLANCE TEST DUE TO UV COIL BINDING . JANUARY 6., 1983. . UNIT 2 TRIP. ON LOW;_lOW SG LEVEL.*.. -_ "A" TRIP BREAKER FAvLED TO.OPEN FOR ABOUT 25 MINUTES I JANUARY 1983. LER:CONCLUDED 01/06. FAILURE DUE TO. DIRT., CORROSION AND BINDING ~* JANUARY. 13 -*is,, 1983

  • UNIT i u_v TRIP MECHANISMS DISASSEMBLED~ \\i\\\\ "

CLEA.HEU., AND. REASSEr*1BLED* ~\\" FEBRUARY 1983 * * *

  • . FOLLOWING REFUELING OUTAGE.,- OPERABIIITY. -

CONDUCTED BEFO~E UNIT 1 RESTART* FEBRUARY 20., 1983. *. --:- -UNIT *1 *TRf P.-BREAKE-RS."FUNCTIONED* FOl(~--- 2 TRIPs;1-0W:~~ow.. SG LEVEL.;*** H-IGH-. ~' HIGH SG LEVEL * ..,* t' ~ .. -- _. * *_ *.... FEBRUARY 22., ~~g3*... -. .o. UNIT i TR.I PS O~ LOW-LOW $.G LEVEL.. * . * ~-

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' REACTOR* TRIP BREA~ER tOYER. * * ..*... ;,~: *-~*.. :. PLATE.~ROBLEM*

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~;~IGNALs oN LoW-Low sG LEVEL : * *

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  • 2200:.HOURS: *.':.-.,:. : :. *:,;CONCURRENT" WITH MANUAL. TRIP. TRIP. BREAKER~~.

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  • ~:,.:.,.*;...... :*.FEBRUARY 25,,: 1983'::.,*:_, __ -*.REACTOR TRIP ON LOW-LOW-SG*LEVEt*. NO.. -.*:.:'*,.,

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  • FEBRUARY 22_ EVENT SEQUENCE..

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.*TIME 2155. '* /. . - REACTOR BUS TRANSFER *FROM OFF~SITE TO'

  • - -*_*-- -ON-SIT.E. IN PROGRESS 'AT 2'0% POWER*.*_ DURING

. TRANSFER LOSS OF #13 RCP AND #12 MAIN FEED PUMP CMFP) OCCURS DUE TO 'LOSS *oF CONTROL POWER* (#12 MFP ONLY OPERATING MFP) * . 2156 :54'

  • - REACTOR TRIP SIGNAL FROM LQW LOW LEVEL
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- AUXILIARY FEEDWATER CAFW) PUMPS START ... 2156 :58.: - MANUAL REACTOR TRlP DUE-TO DEGRADING -CONDITIONS*. -!"" TURBINE TRIP: REACTOR TRIP BREAKERS. OPEN ' ' 2204 . -*SAFETY INJECTION. csn DUE-TO -100 PSI DP

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LINES - ~ ~ ~. : ' : ' _;_*~*.::'., *.. : <;{ -~- :... ,. "";.. \\-.. -

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  • *100~ PS I -'DEVELOPED BECAUSE #13 SS SUPPLY I NG~'TURB rNE=-AFW -PUMP *- -

_:.. -. *.. AND* #13. RCP-NOT RUNNING.

    • NRC WAS* INFORMED THAT THE* SG LOW LOW.LEVEL TRIPPED THE Rx AND -

THAT THE.MANUAL TRIP INITIATED NEARLY SIMULTANEOUSLY .*.,~~.~~~~"~~,,,-....... ~,,,..........,u-:-~::................ ~-*:_.... ~,,.~~~~*~~-.-..>n,.........,..,...,,.._...,..:-:~ ... ~~~==*...,....,~~~---=~==----... ~ .. :* *::.. * :~ ~-

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?*~':'~l; TIME*

FEBRUARY 23 0628 '._.. '.. ;.-~ _,;;._**-- :. .~-.r::.->; --~, BLOCK VALVE FOR PORV PR-2 CLOSED BECAUSE OF PORV SEAT LEAKAGE I

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INITIAL CONDICTIONS - REACTOR POWER.12% TURBINE ON LINE .. AND GENERATOR SYNCHRONIZED WITH GRID: FEEDWATER SYSTEM IN MANUAL CONTROL

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. 0021.

    • .:~-{OW LOW WATER LEVEL #12.STEAM GENERATOR.

.;. RE~CTOR TRIP SIGNAL. GENERATO_R_ :6Y.. SSPS Mll INOICATED IN CONTROL. ROOM ~- ~LANT PARAMETERS NOT CONSISTENT WITH

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  • 0021. : 30 (APPROX)

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~" ALERT DECLARED_.*.* /

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',-"'1 -*..,.,,_-~ -"- -~.-,---. \\ - "'"~"**.. -:~-,._~. ISSUES RELATED TO SALEM RESTART AGENDA

1.

PESCRIPTION OF BREAKER

2.

LICENSEE' CORRECTIVE ACTIONS

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ISSUES

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MAINTENANCE PROCEDURES FOR THE UV-TRIP-DEVICES Will* . BE DEVELOPED BASED ON NSD 74-0Z AND NCD-ELEC-18.

3.

W WI LL INSTALL NEW UNIT 1 UV ATIACHMENTS ~, .

  • 4-.: 'PROPER OPERATION OF THE BREAKERS WILL B~ VERIFIED BY PSE&G AND rl-PROGRAM BEING 'DEVELOPED *.

5 *. W.* WILL VERIFY THAT THE UV ATTACHMENTS MEET SAFETY,. , ~ CLASSI:FICATION SPECIFICATIONS-FOR THE OR_IGl.NAL: RX

  • * - SWITCHGEAR...

6 ! SURVEILLANCE OF BREAKE;R -OPERATI*ON

  • WI-Ll--=-BE.JNCREASED *
  • TO MONTHLY INTERVAL.,.

- -- ---* -*.* --=*--** . " _*. - '. 7 I ,:, PROCEDURES WI LL. BE: REVISED TO.REQUIRE THE OPERATOR.

  • _: * -*. -~* : :.

.:*. :: JO.ACTUATE THE REACTOR MANUAL TRIP SWITCH.FOLLOWING

  • .~ *:.__. :,:

AN AUTOML\\Trc.* REACTOfrTRIP *... : .. ; *~ -.. I

  • ~:*,

"~*,_... a~'*-_ DEVE~O:P A FORMA_LI_z;.n POST_ TRIP REVI~ PRO~ED_URE.*..

  • ' :>.i,,)';;N'wi'Ll.SENfi!:C!J~ii:A~t6~.oF*AL~lEtH BULLETINS, MANUALS.\\.'

....... *... _'. *~:.;:_,.. _PERTAHHN6.:'Tb w. EQUIPMENT AT SALEM ~- SALEM WI LL REVIEW..... *.. -~(~~

. * *:*.: '>,.> *.::",*AND---INCORPORATE AS: NECESSARY. INTO STATION DOCUMENTS.
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.. ***.* <.* a !jo~ ;, tf jS: c0NiltiCtl ~G.. J\\NJ NTERNAL REl/IDI OF. THEIR PROCEDURES,,.. ._.,.:*:~:*:::~:_;:.'::.--.}:;~-('t'.;{_~:r.':F,6.~;'..:.*'IS.SEMlNAJI_ON:O.fc:T~CHNJC.AL::INF-O_RMA!IO!_;TO UTILlTIE~~--. --;*-~-~-

    • , -*!..-.. _*.::.. pSE&G HAS* IDENTIFIED THE.: DESIRED DIS-TRlBUTION OF THIS-

.,:, -INFORMATION. AS.--PART OF RECErtT. IMPROVEM~T.*1N._ TIIElR _..... :,***'.. HANDLHIG OF TECHNICAL DOCUMENTS' ~ ' -~-

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'-~ - . --:- 2...; A REVIEW IS IN PROGRESS AT SALEM OF PAST EQOlPMENT FAILURES. D9CUMENTEJl. IN LER's., DEFICIENCY REPORT~ .. A PREVENTIVE, MAINTENANCE PROGRAM.WILL BE IMPLEMENTED BASED UPON RESULTS OF REVIEW. . **=* '. ~ -.. ;... ' ~ '-. . _. ~ ---~

  • . --~.. '

' '-~ ~- : ._~ ... ~ ~'!'i:D~~3~i~~j~;';;~.. Asl!:l.'t_.___,;:!'}*.""tl.,,.,._,.,,,..~!..:_. *.,;,,.,.,,*.~.* ~

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  • -~ --
-------~.-~ - -

SAFETY CLASSIFICATION OF-BREAKERS IDENTIFICATION OF CAUSE OF FAILURE / I VERIFICATION TESTI-NG .REVISED SURVEILLANCE & MAINTENANCE PROCEDURES OPERATING PROCEDURES 1 AUTOMATIC/MANUAL stRAM i ATWS-EMERGENCY PROCEDURES---.. -. -~. -... __ . 1. OPERATOR-RESPONSE MANAGEMENT ISSUES ._ o: PROCEDURES *F01r POST~TRlP REVIEWS.: ...

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  • Q.UALlTY ASSURANCE_. *1*

1 -.,ENFORCEMENT -* . i /.

    • ~.:-- *: LICENSEE, UPDATING WESTINGHO.USE MAINTENANCE.**

.,,_,.. _., __. *:*. ; INFORMATION *

    • OTHER EQUIPMENT MAINTENANCE *.PROCEDURES

~

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~ :*. "\\ *. ~* ~.:..... :,.. '-:'.- ~-: *- *,. ~.. * -

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/-- -~-:.* NRE-, BULLETir~ OF 02/25/8~,,-

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- IE. ruUET1N 83-01; FAIWRE a= REACTOR TRIP BREAKERS <WEsrr~HrusE:* nB-so> __. *.TO OPEN ON PLJTCWffIC TRIP SIGNAL --= 'REOOESTED ACTION**JTEMS* ~All" ~S. 0 TEST UNDERVOLTAGE TRIP FUNCTION WITHIN 24 HOJRs* IF NOT TtsTFJ) WITHIN

  • 5 DAYS
  • o RB'IEW MAINTENn.NCE PROSIW1 AND CONFCRM TOW PRaJRAM CR AL1ERNATE..

0 -*~ NOTIFY All LICENSED OPERATffiS OF lliE SALEM.EVENT., AND.REVIEW.81ERGENCY PROCEDURES FOR.FAIWR&.TO-TRIP-WITH EACH* OPERATOR-lJN,HlS MRIVAk ON.. SHIFT -"7.. ___

  • REPORT TO NRC WITHIN l DAYS I

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~-: ~.. PLANTS* WITH DB BREAKERS* IN RPS - 0 . ALL}'.!_ OPERATING PLANTS EXCEPT FMLEY / MCGUIRE AND SIJM\\1ER. 0 NO B&W, ~ OR GE PU\\NTS USE DB ll'PE BREAKERS WITH UV TRIP . PRO/ISIONS IN RPS 0

  • OTHER SPFEfY RELATED APPLICATIONS Cf DB ~S.ARE BEINS. REVIBiJED. __
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IEB 83-01 TEST RESULTS-"'*-- 0 TESTING CCT-1PLEfED ftS RBllESTEJ Fffi ALL W PLANfS WITH DB TYPE BREMRS 0 . NO FAIWRES FOOND 0

  • PLAITTs* SHU1DaiJN WI LL -lEST BS:ORE REllJRN TO POiiER

. \\ ..-. \\' \\. -;. *-.. ~* . *:.~.. . *'-;;*~!:***:-*-~.;.::;;~. i

GENERIC IMPLICATIOtfrOLLOW-UP ~.

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  • .:., GENERIC IMPLlCATION FULUJW-UP.

-*---~-- -~~-:~ ~ ..... i: -WESTINGHOUSE.ACTI.ONS j o INTERCOMPANV TASK FORCE ""'. CONDUCTING 'AN °JNTERNAL.

  • -* REVIEW OF THEIR PROCEDURES.FOR DISSEMINATION -

OF TECHNICAL. INFORMATION To-UTILITIES -. o *EVALUATION.AND. TESTING.PROGRAM FOR.MODEL DB-50 'BREAKER UV core. - o DEVELOPING* PROCEDURES FOR INDEPENDENT TESTING OF UV AND SHUNT COIL TESTING -2.

  • OWNERS.GROUP/RRG*- {WESTINGHOUSE PLANTS>

'. --: *.. (j A LISTING _OF CURRENT W. TECHNICAL *DATA LETTERS- - --* -

  • TO. BE DISTRIBUTED _
    • o EVALUATE THE.EFFE~TIVENESS.OF--MANUAL_SC.RAM FOLLOWING*"-_:_ __ _

_ -.. AUTOMATIC SCRAM- ~**..

  • -' -o. REVIEW. OF.-TRIP.AND* ATws* EMERGENCY -PROCEDURES.,,

.:*... o -- ADEQUACY OF STS,* SU.RVEILLANCE INTERVAL,. TEST METHOD~ ... *.. >. : AND-TESTING OF SHUNT COIL. -.. -. ':. ~ ' - ~ - i. ---~~:_->* .-:~*- ~. *.':o, :* NOTlFY-~1EMBERS. :To CON-DUCT A REVIEW._ FOR SIMILAR..... :..<:

  • .*.*. -_:-'.,/ "'~~'~:j~~,:~~~.I~ ~~HER SYSTEMS

-~:.,,,:;.~1~-3-i'~j:.:MEEIINGS:_-.WITH>CEIB&W/GE RRGs - ~. :.*:* J _,~*. __ !,*.*~~~**._ -;~~.. -. .:*~:,_;~-?*;~>.:*'- ~:*~-:-_ *.>*~.:-.*,-*<.:. - -:~_.,:_ -*;... : ) ~'... --.-*** -4 i *.';,:.; PER}trib' :.MEr*10*: *oF 02128/83* *_ _ *

  • :. : :. _>.. ~:* ::*:a*"'nETAILEn:EvENT.. REPORT BY MARCH g (REGION o

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BACKUP* SLIDES HISTORY OF PWR SCRAM* BREAKER FAILURES. STATUS* *qF* PAST. ACTIVITlES.

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  • prnF~'.i973THERfH~VE llEEN ilPPRoxIMATELY 340 PWR REACTOR YEARS OF OPERATION:. ' <

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    • _ 220 WESTINGHOUSE.*.**.. :.

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  • \\.',~.. :.:\\.
"10 B&.W
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  • 0

'. nu~i~~ 'TH I ~r~ERIQD OF n ME JilE~~HAVE BEEN 35. KNOWN SCRAM BREAKER FA I LURES : .. '

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  • o THE:AVERAGE*NUMBER':oFSCRAM.BREAKER FAILURES PER REAcro*R.YEAR BY VENDOR 1s*:

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  • 11.*.

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~ 0 . 'THE CORRESPONDING EXPECTED NU~ER OF SCRAM BR~AKER FAILURES IN A CALENDAR I* ** I -, I. ,., 11'. ~ ~

YEAR BY "VENDOR IS(

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~ .Q *;:*2s:: DUE-TO UNDERVOLTAGE COIL. MECHANISM FAILURE OR BINDING.

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  • o <.6 D_UE. TO MECHANICAL PROBLEMS WITHIN THE BREAKER OR BREAKER PARTS ~EING
  • -:,, 'our; OF.ADJUSTMENT.

j. 'I '.O.. *<3i* UNKNOWN. ~ -'.. Q1 f DIRT... . i I. I.. I. l' . 'ii' j!. . ) I. 11. I 1 ~. .,I i .I . I .1 ~.... ~.. J ~," {.. :

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  • NOVEMBER 24,. 1981.

. FRN*NOTICE.WITH PROPOSED RULES APRIL 23, 1982 COMMENTS RECEIVED ON FRN. LARGE STUDY BY UTILITY GROUP ON ATWS~ SEPTEMBER -

  • TASK FORCE AND STEERING GROUP

. NOVEMBER,

  • 1982 MET AND DRAFTED RECOMMENDATIONS*.*

NOVEMBER 3 I' 198_?.

  • CRGR BRI.EFED"

~ -.-**-.~:-. - - **-* *. - . NOVEMBER 10,.~1982.. *-* ' CRG R-*.WBMI TS-.. QUESTIONS, TO. STAFF ~ , :r,,': 1, . : -._, DECEMBER,... 1982 ST*AFF SUBMITS A~SWERS TO **CRGR . I.

  • :.. ~~.

.. *. QU.ESTl.ONS ~ ~" -..... ~* J~tii\\Rf.261; 1982 <.* *. *.. ~~GR BR! EFED ON ANSWERS. TO : < *.... * \\

'*. *. *=. ~.**--:_::*'". *:..
.:***..... <;". QUESTIONS. AND SLIGHTLY.REVISED-.*:.:.

~ f . -,... _:* :.. <; -~; -. ~.... .... <.... <... *., *...... :.~.. * * .. VALUE/IMPACT ANALYSIS**

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  • PROPOSED RULE ELEMENTS I
o.-

~

GE. CBWR>.* *~.. *
  • o.

ARI INSTALLED. o.. I NC REASE SLCS TO 86 GPM. o-

  • _AUTOMATICALLY. TRIP RECIRCULATING PUMPS o
  • PROVIDE RELIABLE SCRAM DISCHARGE-VOLUME*

o IMPLEMENT PROCEDURES FOR OPERATOR RESPONSE . *. PWR CALL). * *. * * .. er-INSTALL AMSAC-DIVERSE A.ND INDEPENDENT* AFW INI"fl-AllON AND

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. 0. TURBINE TRIP ~. -. --**-... ;_--;. -~----~ ***_ ..,:.*JO,, PROVIDE A DIVERSE SCRAM. SY.STE.'1~*. INDEPENDENT FROM THE REACTOR PROTECTION-SYSTEM* ~.

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DRAFT REPORT OF TASK-FORCE AND. STEERING GROUP . *-RECOMMENDATIONS.. ISSUED FOR. COMMENT TO. MEMBERS I

2.

DRAFT RULE AND FR NOTICE ISSUED FOR STAFF COMMENT

3. ~COMMENTS FROM STAFF AND CRGil~O-~ VALUE/IMPACT ANALYSES* BEINu-RESOLVEP

-- *-... ;..--. -=-.. -=.-:.:.. *. **- . I 4 *.. IMPLICATIONS OF S1~LEM ATWS UNDER REVIEW (.. ~** ~ -:

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.. /** ~- ~-.. ATWS RULEMAKING SCHED.V_LE 3/9/83 -* -- ATWS TASK FORCE AND STEERING GROUP

  • CONCUR ON REPORT AND PROPOSED RULE I

3/23/83 PRESENTATION OF PROPOSED RULE AND COMMISSION PAPER TO CRGR 4/22/83 *cRGR CONCURRENCE 5/6/83 ACRS REVIEW* 6/6/83 PAPER PRESENTED TO COMMISSION

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