ML17332A879

Monthly Operating Rept for Jul 1995 for DC Cook Nuclear Plant Unit 1

ML17332A879
Person / Time
Site:	Cook
Issue date:	07/31/1995
From:	Blind A, Doreen Turner INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9508150067
Download: ML17332A879 (11)

Text

PRIORITY (ACCELERATED RZDS PROCESSZNG)

REGULATORY INFORMATION DISTRIBUTXON SYSTEM (RIDS)

ACCESSION NBR:9508150067 DOC.DATE: 95/07/31 NOTARIZED: NO DOCKET FACIL:50-315 Donald C.

Cook Nuclear Power Plant, Unit 1, Indiana M

05000315 p

AUTH.NAME AUTHOR AFFILIATION TURNER,D.G.

Indiana Michigan Power Co. (formerly Indiana S Michigan Ele BLIND,A.A.

Indiana Michigan Power Co.

(formerly Indiana

& Michigan, Ele R

RECIP.NAME RECIPIENT AFFILIATXON

SUBJECT:

Monthly operating rept for Jul 1995 for DC Cook Nuclear Plant Unit 1.W/950808 ltr.

DISTRIBUTION CODE:

IE24D COPIES RECEIVED:LTR ENCL SIZE:

TITLE: Monthly Operating Report (per Tech Specs NOTES RECIPIENT ID CODE/NAME PD3-1 PD INTERNAL: AEOD/SPD/RRAB NRR/DISP/PIPB RGN3 EXTERNAL: LITCO BRYCE,J H

NRC PDR COPIES LTTR ENCL 1

1 1

1 1

1 1

1 1

1 1

1 RECXPIENT ID CODE/NAME HICKMAN,J NRR/DRPM/PECB NOAC COPIES LTTR ENCL 1

1 1

1 1

1 1

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N NOTE TO ALL "RZDS" RECZPZENTS:

PLEASE HELP US TO REDUCE WASTE!

CONTACT THE DOCUMENT CONTROL

DESK, ROOM OWFN 5D8 (415-2083)

TO ELZMZNATE YOUR NAME FROM DZSTRZBUTZON LZSTS FOR DOCUMENTS YOU DON'T NEED' TOTAL NUMBER OF COPIES REQUIRED:

LTTR 10 ENCL 10

indiana Michigan Power Company Cook Nuclear Plant One Cook Place Bridgman, Ml 49106 616 465 5901 August 8,

1995 U.S. Nuclear Regulatory Commission ATTN:

Document Control Desk Washington, D.C.

20555 Gentlemen:

Pursuant to the requirements of Donald C.

Cook Nuclear Plant Unit 1 Technical Specification 6.9.1.10, the attached Monthly Operating Report for the month of July 1995 is submitted.

Respectfully, A.A. Blind Plant Manager Attachment c:

NRC Region III D.R.

Hahn R.C. Callen S.

Hamming J.G.

Keppler INPO Records Center ANI Nuclear Engineering Department E.E. Fitzpatrick W.G. Smith, Jr.

S.J.

Brewer D.W. Paul S.H. Steinhart J.L. Leichner J.A.

Isom D.G. Turner E.A. Smarrella M.E. Russo 9508l50067 950731 PDR ADQCK 050003i5 R

PDR

~ /

N.R.CD OPERATING DATA REPORT DOCKET NO.

50-315 DATE 02/Aug/95 COMPLETED BY DG Turner TELEPHONE 616-465-5901 OPERATING STATUS

1. Unit Name D.

C.

Cook Unit 1

2. Reporting Period July 1995 notes

3. Licensed Thermal Power (MWt) 3250 4., Name Plate Rating (Gross MWe) 1152

5. Design Electrical Rating (Net MWe) 1020 6.

Maximum Dependable Capacity (GROSS MWe) 1056 7.

Maximum Dependable Capacity (Net MWe) 1000

8. If Changes Occur in Capacity Ratings (Items no.

3 through

7) Since Last Report Give Reasons 9.

Power Level To Which Restricted. If Any (Net MWe) 10'.

Reasons For Restrictions. If Any:

11. Hours in Reporting Period 12.

No. 'of Hrs. Reactor Was Critical

13. Reactor Reserve Shutdown Hours

14. Hours Generator on Line

15. Unit Reserve Shutdown Hours

16. Gross Therm.

Energy Gen.

(MWH) 17.

Gross Elect.

Energy Gen.

(MWH)

18. Net Elect.

Energy Gen.

(MWH)

19. Unit Service Factor

20. Unit Availability Factor

21. Unit Capacity Factor (MDC Net)

22. Unit Capacity Factor (DER Net) 23, Unit Forced Outage Rate 24 'hutdowns Scheduled over Next Six None This Mo.

Yr. to Date 744.0 5088.0 338.0 4682.0 0.0 0.0 315.4 4659.4 0.0 0.0 727724 14279008 226520 4645030 215173 4476987 42.4 91.6 42.4 91.6 28.9 88.0 28.4

'86.3 57.6 8.4 Months (Type, Date,and Cumm.

180408.0 136592.9 463.0 134483.0 321.0 396399585 128650470 123758302 75.4 75.4 68.4 66.6

5.9 Duration)

25. If Shut Down At End of Report Period, Estimated Date of Startup:

Se tember 23, 1995

26. Units in Test Status (Prior to Commercial Operation):

Forecast INITIALCRITICALITY INITIALELECTRICITY COMMERCIAL OPERATION Achieved

0

AVERAGE DAILY POWER LEVEL (MWe-Net)

DOCKET NO.

50-315 UNIT ONE DATE 02/Aug/95 COMPLETED BY DG Turner TELEPHONE 616-465-5901 DAY 95/07/01 95/07/02 95/07/03 95/07/04 95/07/05 95/07/06 95/07/07 95/07/08 95/07/09 95/07/10 95/07/11 95/07/12 95/07/13 95/07/14 95/07/15 95/07/16 July 1995 545 544 539 540 543 538 538 539 577 922 1002 1001 999 139 0

0 MONTH AVERAGE DAILY POWER LEVEL DAY 95/07/17 95/07/18 95/07/19 95/07/20 95/07/21 95/07/22 95/07/23 95/07/24 95/07/25 95/07/26 95/07/27 95/07/28 95/07/29 95/07/30 95/07/31 AVERAGE DAILY POWER LEVEL 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

~

~

(s YI

DOCKET NO:

UNIT NAME:

COMPLETED BY:

TELEPHONE'ATE'AGE:

50-315 D.C.

Cook Unit 1

G.F.

Bussone 616-465-5901 August '8, 1995 Page 1 of 2 MONTHLY OPERATING ACTIVITIES JULY 1995 HIGHLIGHTS The unit entered this reporting period in Mode.

1 at 57%

RTP with the West Main Feed Pump removed from service to perform planned maintenance activities.

Reactor power was increased on July 9, 1995 at 1430 as the West Main Feed Pump was returned to service.

Reactor power reached 100%

RTP on July 10, 1995 at 1126.

A low condenser vacuum turbine trip, and subsequent reactor trip, occurred on July 14, 1995 at 0426.

Reactor power was increased to 88 RTP and Mode 1 was entered July 16, 1995 at 1010.

Reactor power was subsequently reduced and the unit entered Mode 3 on July 16, 1995 at 2149 due to Main Transformer problems.

The unit exited this reporting period in Mode 5 at 0% RTP.

There were no challenges to the pressurizer safety valves or power operated relief valv'es.

Gross electrical generation for the month of June was 226520 MWH.

DETAILS 07-09-95 1430 07-10-95 1126 07-14-95 0426 Commenced Reactor power increase.

Reactor power stabilized at 100% RTP.

Reactor trip occurred, generated by low condenser vacuum turbine trip.

Entered Reactor Mode 3.

07-15-95 2314 07-16-95 1010 07-16-95 1233 Reactor taken critical.

Entered Reactor Mode 1.

Tripped Main Turbine.

DOCKET NO:

UNIT NAME:

COMPLETED BY:

TELEPHONE:

DATE:

PAGE:

50-315 D.C.

Cook Unit 1

G.F.

Bussone 616-465-5901 August 8, 1995 Page 2 of 2 MONTHLY OPERATING ACTIVITIES JULY 1995 07-16-95 07-29-95 07-30-95 07-31-95 2149 0057 1117 0437 Entered Reactor Mode 3.

Commenced RCS cooldown.

Entered Reactor Mode 4.

Entered Reactor Mode 5.

UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH: JULY 1995 UNIT NAME:

DATE:

COMPLETED BY:

TELEPHONE:

PAGE:

D.C.

COOK UNIT 1 August 8, 1995 G.F.

Bussone 616-465-5901

~

Page 1'of 1 DURATION NO.

DATE TYPE HOURS METHOD OF SHUTTING LICENSEE DOWN EVENT SYSTEM COMPONENT CAUSE AND CORRECTIVE ACTION REASON REACTOR REPORT NO.

CODE CODE TO PREVENT RECURRENCE 317 950714 F

56. 1 95-003 N/A N/A At 0426 Unit 1 received a reacto trip signal as a result of a turbine trip due to low condenser vacuum.

The cause of the loss of condenser vacuum was a cracked socket weld connecting the drain trap to the condenser A steam dump control valve.

318 950716 F

371.5 N/A N/A N/A At 1153 while attempting to parallel the main generator to the grid excessive field voltage was applied.

This resulted in damage to the transformer core and the accumulation of hydrogen in the transformer.

1 F:

Forced S:

Scheduled 2

Reason:

A:

Equipment Failure (Explain)

B:

Maintenance or Test C:

Refueling D:

Regulatory Restriction E:

Operator Training and License Examination F:

Administrative G:

Operational Error (Explain)

H:

Other (Explain) 3 Method:

1:

Manual 2:

Manual Scram 3:

Automatic Scram 4:

Other (Explain) 4Exhibit G Instructions for preparation of data entry sheets for Licensee Event Report (LER) File (NUREG 0161) 5Exhibit I:

Same Source

e V

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