ML20138J012

Monthly Operating Rept for Apr 1997 for Big Rock Point

ML20138J012
Person / Time
Site:	Big Rock Point File:Consumers Energy icon.png
Issue date:	04/30/1997
From:	Jeanne Johnston, Shields K CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9705070362
Download: ML20138J012 (6)

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Consumers Power PERMERING MKHNEAN's PGt@GRE55 I

',i May 1,1997 i

Nuclear Regulatory Commission Document Control Des.k Washington,DC 20555 l j

Dear Sir:

Enclosed please find the ' statistical data for the Big Rock Point Nuclear Plant covering the period of

? April 1,1997 through Apit 30,1997.

Sincerely, O

K J Shields Reactor Engineer Enclosures cc: Administrator Region lit, Nuclear Regulatory Commission DRHahn, Department of Enviromental Quality JRPadgett, Michigan Public Service Commission RAben, Michigan Department of Labor MPCass, American Nuclearinsures FYost, Research Services Utility Data lrtstitute ri SMMcIntyre, P26-201 KP Powers, Big Rock Point Ug L I GCWithrow, Big Rock Point NRC Resident inspector, Big Rock Point Document Control, Big Rock Point,740*22*35*10 File

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NUCLEAR OPERATIONS DEPARTMENT -

Unit Shutdown and Power Reductions .- ,

Docket Number Unit Date Completed by Telephone Report Month April,1997 55-150 Big Rock Point Plant May 1,1997 JR Johnston (616)547 4223 .

Method of Shutting Duration Down t.icensee Event Systery C 2

Reactor3 g

Number Date Type (Hours) Reason Report Number Code Code Cause and Corrective Action To Prevent Recurrence 5741 03/02/97 F 719 Hrs A 1, 2 On 03/02/96 at 22:32; The unit was removed from sernce to Thru investigate and repair leakage from MOJ071 and/or VPI-303 on 04/30/97 the post incident system. After the unit was removed from service, the reactor was rnanually scrarmned to fully insert the remaining withdrawn control rod dr=ves. After repairs were complete, the reactor was taken critical on 04/20/97 and ready to place the unit on line when the #2 Reector recirc pump inner seal failed. The turbine was peaced on turning gear and the reactor was manually scrammed (planned) to fully insert the remaining withdrawn cortrol rod drives. On 04/28/97 at 06:26; the 116 OCB tripped while trying to place the unit on line.

During investigation, the unit was keep at 3600 RPMs until 04/29/97 at 10:53 when the turbme wm placed on turning gear and at 17:14 the reactor was manuelly scrammed (planned) to fully insert the remainmg withdrarwn control rod drives. When all repairs are completed the unit will retum to normal service.

(Total outage hours: 1,416.5) r 4Exhibit G = Instructions for '

1 2 Reason: Method:

F = Forced S o Scheduled A = Equipment Failure (Explain) 1 = Manual Preparation of Data Entry Sheets B = Maintenance of Test 2 = Manual Scram ForIJcensee Event Report (LER)

C = Refuehng 3 = Automatic Scram File (NUREG -0161)

D = Regulatory Restriction 4 = Other (Explain)

E = Regulatory Restriction 5 Exhibit 1 = Same Source F = Administrative G = Operational Error (Explain)

H = Other (Explain)

Perse 99SS 247

1 STATS VERSION 97.001: EA-B-STATS-97-01 0?/06/97 RLETIM2-05/02/97 06:20:12 P49e 4 of 9 -

GREYB00K OPERATING D/ zPORT DOCKET h0. 50-155 DATE: 5/ 1 / 97 BY: JR JOHNSTON .

OPERATING STATUS PHONE: 616-547-8223 NOTES: e

1. UNIT MAME: BIG ROCK POINT NUCLEAR PLANT

2. REPORTING PERIOD: 4 / 97 '#

3. LICENSED THERMAL POWER (MWT): 240

4. NAMEPLATE RATING (GROSS MWE): 75

5. DESIGN ELECTRICAL RATING (NET MWE): 72

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE): 71.0

7. MAXIMUM DEPLLDABLE CAFACITY (NET MWE): 67.0

8. IF CHAhGES OCCUR IN CAPACITY RATINGS (ITEMS 3 THRU 7) SINCE LAST REPORT. GIVE REASONS:

9. POWER LEVEL TO WHICH RJ ,TRICTED.IF ANY (NET MWE):

10. RE ASONS FOR RESTRICTIOc, IF ANY:

THIS MONTH YEAR-TO-DATE CUMULATIVE

11. HOURS IN REPORTING FERIOD 719.0 2879.0 298842.0

12. NUMBER OF HOURS REACTOR WAS CRITICAL 56.5 754.0 216457.6

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

14. HOURS GENERATOR ON-LINE 0.0 681.0 213058.2

15. UNIT RESERVE SHUlDOWN HOURS 0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED (MVH) 1164.0 133920.0 41308181.0

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 0.0 42718.0 13128387.0

18. NET ELE TRICAL ENERGY GENERATED (MVH) 0.0 40399.5 124216GO.8

19. UNIT SERVICE FACTOR 0.0% 23.7% 71.3%

20. UNIT AVAILABILITY FACTOR 0.0% 23.7% 71.3%

21. UNIT CAPACITY FACTOR (USING MDC NET) 0.0% 20.9% 61.8%

22. UNIT CAPACITY FACTOR (USING DER NET) 0.0% 19.5% 57.7%

23. UNIT FORCED OUTAGE RATE 100.0% 76.3% 12.0%

24. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE, & DURATION OF EACH): REFUELING; 08/31/9/: 60 DAYS.

25. IF SHUT DOVM AT END OF REPORT PERIOD. ESTIMATED DATE OF STARTUP: 05/10/97

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, Refuelina information Reauest s .

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, ,1. Facility Name:

l Big Rock Point Plant

2. Scheduled date for next refueling shutdown:

} August,1997.

3. Scheduled date for restart following shutdown: i I

60 Day Duration. I

4. Will refueling or resumption of operation thereafter require a technical specification change or I other license amendment?

i No.

I if yes, explain:

l If no, has the reload fuel design and core configuration been reviewed by Plant Safety Review

, Committee to detennine whether any unreviewed safety questions as associated with the core

. reload (Reference 10 CFR, Section 50.59) ? j l

To be performed once core loading determined for cycle 30. '

If no review has taken place, when is it scheduled 7

5. Scheduled date(s) for submittal of proposed licensing action and supporting information:

NIA.

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6. Important licensing considerations associated with refueling, eg. new or different fuel design 1

or supplier, unreviewed design or performance analysis methods, significant changes in fue'; )

design new operat!ng procedures:

]

None.

7. Number of fuel assemblies in:

Cors = 84.

Spent Fuel Pool Storage = 358.

New Fuel Storage = 22. l

8. Present licensed spent fuel pool storage capacity:

441 Size of any incresse in licensed storage capacity that has been requested or pisnned (in number of fuel assemblies):

0

9. Projected date of last refueling that can be discharged to spent fuel pool assuming the present license capacity:

Last total core off load 1996.

Last refueling 1999.

May 1,1M1'

FORM 16.3.H j .~ Operating Status Report - Nuclear Regulatory Commission Prepared by: 9 Date: b N, -/9 77 --

u v y i

Reviewed by:

• Date: 2 )

(Reactorlngineer or Alternate) j Copy to be sent to the following by the seventh day of each month:

i Nuclear Reguietory Commission Robert Aben, Assistant Chief

. Document ControlDesk Bureau of Construction Codes

! Washington, DC 20555 Michigan Department of Labor ,

7150 Harris Drive, Box 30015 l Lansing, MI 48909 Administrator American Nuclearinsurers Region ill- USNRC Att

MP Cass

801 Warrenville Road Town Center, Suite 3008

Lisle,IL 60532 4351 29 South Main Street West Hartford, CT 06107-2445

? DR Hahn Fred Yost Depastrnent of Enviromental Quality Director, Research Services i 3500 North Logan Utility Data institute [

Lansing,MI 48906 1700 K Street, N.W.

Suite 400 i

Washington,DC 20006 JR Padgett Michigan Public Service Commission PO Box 30221 Lansing, MI 48909  ;

l Routing Copy:

SM McIntyre, P26-201 KP Powers, Big Rock Point Plant 1 CC Withrow, Big Rock Point Plant NRC Resident inspector, Big Rock Point Plant Document Control Center, Big Rock Point Plant DCC 740*22*35*10 (740*22*10*04) Cross Reference .

16.3.3-17 l

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