ML18043B088

Forwards Request for Addl Info Re Loss of Offsite Power & Facility Offsite Grid.Requests Response within 90 Days

ML18043B088
Person / Time
Site:	Palisades
Issue date:	09/25/1979
From:	Ziemann D Office of Nuclear Reactor Regulation
To:	Bixel D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
References
TASK-06-07.C1, TASK-07-03, TASK-08-01.A, TASK-6-7.C1, TASK-7-3, TASK-8-1.A, TASK-RR NUDOCS 7910160306
Download: ML18043B088 (3)

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Docket No.

NRR ROG DEiseii-hut RVollmer BGrimes Mr. David Bixel l*JGammi 11 Nuclear Licensing Administrator

, *Consumers Power Co~pa~y JMiller

~Shao TCarter

• DLZi emann RSilver 212 West Michig~n Av~nue

• Jatksori, Michi~an

• 49201

• I

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Dear Mr. Bi-xel :

HSmit~

. RE:

PALISADES PLANT

. REGlllATDRY-DOCKET FllE COPY

~~e are currently reviewirig the adequacy of the offslte power.systems.of nuclear power pl ants and in particular, the 1 oss of off site p"ower ev~nts

.at your facility.

One aspect of this review concerns the.history of experienced *total and.Partial power outages and* attendent.voltage.or frequency conditions.of the grid.

• In our.~eview *of this matte~*\\1e have drai-1n upon t'he information provided to us *vi a Licensee Event Rep.orts and foll owup letters which you have s~nt to us.

Our review of th~se:reporis *indicated the loss of offsite

• power events have occurred at Palisades.Plant on September 2',.1971, October 17, T974,.September 24, 1977;.November 25,-19.77, December-11.,

1977, and May 23, 1978; - To ~6mplete ou~ review o~ loss of offsite,power events He* require.. the additiOnal information concerning the pl ant offsite grid indicat~d-in the enclo~ure to this letter.

I Please pro~ide your response-to the attached que~tions for ~he Palisades Plant within-90.days of receipt of:this letter.

-. Sincerely,

• origin{ll Sigitled b~

... ;. Thomas v. Wamb8:ch.

~nnis L. Ziemann, Chief:

Operating Reactors Branch- #2 i~isidn of Operating Reactors

Enclosure:

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('YA'*

OP'P'ICBtl'-

-Request.for Additional -

.I nformati o'n.

- *79101eo 3G1fi>. n.i~

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MlC POaM 31e (9*76) NR<M. oz40 u *** aova~NMBNT PRINTING OP'P'IC~: I 17D _........ 710

Mr. David Bixel cc M. I. Miller, Esquire Isham, Lincoln & Beale Suite 4200 One First National Plaza Chicago, Illinois 60670 Mr. Paul A. Perry, Se~retary Consumers Power Company 212 West Michigan Avenue Jackson, Michigan 49201 Judd L~ Bacon, Esquire Consumers Power Company 212 West Michigan Avenue Jackson, Michigan 49201 Myron M. Cherry, Esquire Suite 4501 One IBM Plaza Chicago, Illinois 60611 Ms. Mary P. Sinclair Great Lak~~ Energy Alliance 5711 Summerset Drive.

Midland, Michigan 48640 Charles Bechhoefer, Esq., Chair.man Atomic Safety and licensing Board Panel U. S. Nuclear Regulatory Commission Washington, D~ c.

20555 Dr. George C. Anderson Department of Oceanography University of Washington Seattle, Washington 98195 Dr. M. Stanley Livingston 1005 Calle Largo Santa Fe, New Mexito 87501 Kalamaz6o Publii Library 315 South Rose Street Kalamazoo, Michigan 49006 September 25, 1979

~

ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION LOSS OF OFFSITE POWER

• A.

For losses of offsite power where less than all offsite power was lost:

1.

Hm.,r many circuits to the offsite network are normally available and how mariy were lost during the. event?

2.

What was the cause of the event?

3.

Why did the other lines not fail when some did f~il?

4.

Was any voltage increase or decrease experienced just prior to or during th~ outage?

If so, please give details~ voltages reached, affects, etc.

5.

• Was any frequency decay experienced just prior to or during the outage? If so, please give details, lowest frequency reached, decay rate, affects on equipment operation, etc.

6.

How long was power unavailable from the circuit?

7.

Da fe of Event.

~~* For losses.of all offsite power:

1.

2.

3.

4..

5.

6.

How long was the power off?

How. long for partial. recovery?

Please give details.

• If turbine trip occurred, how soon afte~ did loss of offsite power occur?

If power was recovered promptly(lO minutes or less), was it due to automatic or manual actions?

Wa-s any voltage increas.e or decrease experienced just prior to or during the -0utage?

If so, please give detail$, voltages reached, affects, etc.

Was any frequency decay experienced just prior to or during the outage?

If so, please give details, Jo0est f~equency reached, decay rate, affects on etjuipment-oper~tion, etc.

Date of Event.

C.

Were there any other loss of.offsite pciwer. events 6ther than we have liste~? If soi please give details of each event;.