ML18044A876

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Submits Corrective Actions for NRC 770329 Generic Ltr Re Status Annunciator Sys for Diesel Generators.Disabling & Nondisabling Conditions,Currently Alarmed at Common Station, Should Be Separately Annunciated
ML18044A876
Person / Time
Site: Palisades 
Issue date: 04/23/1980
From: Ziemann D
Office of Nuclear Reactor Regulation
To: Hoffman D
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
References
TASK-08-02, TASK-8-2, TASK-RR NUDOCS 8005150202
Download: ML18044A876 (4)
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.REGULATORY DOCKET FILE CO~Y r

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[)ocket No. 50-255 Mr. David P. Hoffman Nuclear Licens1tig Administrator Consumers Power Company

.212 West Michigan Avenue Jackson, Michigan 49201

Dear*Mr. Hpffman:

I A~R 2 3 1980 On Marc;h 29, 1977,_a generic letter was.sent.to all licensees requesting that they'*provide information regarding the status annunciator system*

for *the diesel *generators at their facil 1ties. Thi.s request for informa..:

tion was prompted by reports *from_ liCensees, Le;, LE.Rs, on incidents where diesel generators. faHed to respond *to automatic start' signals because

  • coritrol switches or lockout arid shutdown relays.were left in the shutdown condition by operators unaware of their status~*. The principle reasons for
  • this lack of awareness were:

(1) the sharing of annunciator stattons for

  • both disabling and non-disabling alaY'.fTI conditions;. (2) wordfog on annunciator

.windows for disabling conditions whicti did not specifically say a diesel generator eme~ency_start was b~.ocked; and (3) disabling.ccmditions which were not annunciated i.n.the control room.

Your letters dated May i6, 1977 and July 12, 1977, responded.to our generic letter and described the diesel generator.control circuitry and annunciator system at the Palisades Plant. Quring OU}'.'. original review of your.response, several areas of. concern were identified. These are:

1.

The sh~ring of annunciator stations f~r both disablin~ an~~on-disabling alarm.conditions..

2.

Wording on annunciator windows for disabling conditions which.do not specifically state th.at a diesel gen.erator emergency start signal is_blocked. *

3.

Whether-the d.iese.ls ~re provided with manual shutdown-lockout: relay(!Px\\-:*,

.and if so, whet~er an alarm exists whi.ch clearly indicat~s when thef, \\

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relay is 'not reset.

.. ~

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4.

Whethe*r an alarm. is provided which cleariy indicates when the diesel.

.. i generator control switch is not in the automatic position.

5.. Whether: shared ~nnunciators for disabling conditions carinot.be OURNAMll~

DATii~

. NJl.C FORM 318. (9*76) NR~ 0240 u.s. a~ve:RNMBNT *PRINT~NG OPPtCB: t e11

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  • Mr. David P. Hoffm.an. APR 2 3 1980 Sf.nee then~ we have been able to detennine (from additional 'infonnation provided by your letter dated July 7, 1978, *and a telephone conversation of March 25, 1980) "that no manual *shutdown *lockout *relays exis*t in the
  • Palisades Plant-diesel generator control circt.ii'try, an*alann. fs provided which indicates when the diesel generator control switch *is not in the automatic position, and that shared annunciators cannot be cleared until all abnorinal *conditions are corrected. Thus, *we consider items 3,.4. and 5.above to be resolved.

Items 1 and 2,* however;, require corrective actions as de"scri bed be 1 ow.

There are currently six disabling conditions which are aianned at the.

same annunciator point (window labeled "DIESEL GENERATOR TROUBLE") as alarms that only *indicate a warning of abnonnal. but not...cUsabl fog,.

conditions. The-six disabling conditions are:* control fSWtt~t:c:h~*not. fn automatic, overspeed relay,_ overcrank relay,* loss of direct current control relay, jacket water tfamperatu're relay~ and jacket water pressure rel,ay.

~Ji th ~hese df sabling' conditions alanned at the-.S:ame'annuncfator *.

  • point as alanns for various non-disabling conditions, the infonnation availabl.e to the operator indicating the *operational status of *the*
  • diesel generators could be.imprecise *and lead to misinterpretatton'.
  • In addition*, the wording "DIESEL GENERATO.R TROUBLE" for df sab1frig.

conditions does not rgf-,l~gt tl:le.inoperable s*tatus.of the diesel generators\\

To provide the operator with accurate, complete*, a.nd timely information*~

pertinent to the status of the diesel *generators, as required by-IEEE Std. 279~1971, ft is our position that the fol)owing *corrective ~ctfons

  • are required:

\\.

1. Disabling and non-disabling conditions, currently alanned at a corrmon annunciator.station, should be separ~ted and *annunciated a.t separate :.

annunciator points.

2., The wor:dfng on the annunciator for disabl fng conditions '§hQ.lJ_:lJJ speci-fically state that the diesel' generator is unavaila~le for an automatic I

emergency start.

We bel feve that the above corrective actions a.re ne!,:essar:y to* assure that th.e operators are continually aware of the status of the df.esel generators at the J~Ji~ad~-~ Plant and should be implemented* within 'the next 90. days.*

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NRC FORM ~18 (9*76) NRCM 0240 *

. *U.S. GOVIERNMHNT PRINTING, Of'P'IC~: t 9,71 - ZG 1I

- 719 -

u Mr. David P. Hoffman.

..3, CJ' APR 2 3 1~80 We request *that you* inform us *of your plans to implement o.ur position within 30 days of the date of this letter.

  • cc: *.See next page DISTRIBUTION c

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NRC*PDR

'Lpca 1 PDR.

ORB #2 REad i ng.

NRR Reading

  • DEi sen hut RVollmer OELD

_OI&E (3)

DLZiemann RDSilver HSmith RKenda 11 GLai'nas NSIC TERA ACRS (l6)

DCrutchfield Sincerely,

'. ueci'6~ '

. i:u\\ll s1,:5*

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is1n'1tlnl "c. l, L-1)ef'.n:i"

  • Dennis L. Ziemann, Chief

.Operating Reactors Branch' #2 Division of *Operating Reactors Ol'FICB~ **~~*h:.. -~~*~'.~*;*:*~*~*?......,**************:....... :***..,:.... *............. _............................, *********************

DATO:~ ' 4!"/80 4//,l//80 NRC FORM 318 (9-76) NRCM 0240

  • U.S. GOVERNMENT PRINTING OPFICE: ~971 ':' 2815 e 711

I I r cc 1*'.. I. ~'.~lier, Esquire Jsham, Lincoln & 3eile S'...'i:e-4200 One Fifst National Plaza Chica~o, Illi~ois 60670 l/;r* Paul* A. Perr./, Secretary Consumers Power Company 212 West Michigan Avenue Jackson, Michig~n 49201

  • Judd L *. Bacon, E~quire Cons time rs.Pm*1er Comp any

?12 West Michigan Avenue Jackson,, Michigan 49201 Myron M* Cherry, Esquire

?u i te 4501 Cine IS!*'. Plazc.

Chicago, Illinois.. 60511 Ms. Mary P.* Sinclair Great Lakes* Energy.t.lliance 5711 Su~merset Drive M~dland, Mi~higan 48640 Ka l a ma z o o Pub l i c L i bra ry 315 South Rose Street Kalamazoo, Michigan 49006 Tm,:nshi p Supervisor Covert Tovmshi p Route* l, Box l 0 Van Buren County, Michigan 49043 Office of the Governor (2)

Room l - Capitol Building L a n s i r. g,

~*l i ch i g a n 4 8 91 3 Director, Technical,r,ssess1r.ent

. Division.

Office of Radia~ion Programs (M~-459)

U. S. En*1iron::r::n'tal Drotection Agency

  • Crysta 1 t1'1al l #2 Arlington, Virginia 20450.il 23, 1980 lJ ~ S ! E nv~ :-on;~,;: :-,t: 1 ;:i rot Ect i er:

Agency Federal Activities Branch Region V Office ATTN: *EIS COORDINATOR 230 South Dearborn Stree~

Chicago, Illinois 60604 Charles Bechhoefer, Esq., Chai rr~an Atomic Safety ~nd. Licensing Beard Panel U. S. Nuclear Regulatory Com-nission*

Washington, D. c.. 20555 Dr. George C. Anderson Department of Oceanography Univer~ity of Washington Seattle, Washington 98195 Dr. i*:. Stanley Livingston 1005 Calle Largo Santa Fe,

!~e**1 Mexico 8750-1 Resident Inspector c/o U. S. NRC P. 0. Box 87 South Haven, t~ichig2n 49090 Palisades Plant ATTN :

Mr. J. G. L e\\*li s Plant Manc:ger Covert, Michigan 49043 William J. Scanlon, Esquire 2034 Pauline. Boulevard Ann Arbor, Michigan 48103

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