ML17333A589

Monthly Operating Rept for Sept 1996 for DC Cook Nuclear Plant Unit 1.W/961002 Ltr

ML17333A589
Person / Time
Site:	Cook
Issue date:	09/30/1996
From:	Minor J, Russo M, Sampson J AMERICAN ELECTRIC POWER CO., INC.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9610100277
Download: ML17333A589 (10)

Text

CATEGORY 1 REGULATOR INFORMATION DISTRIBUTION STEM (RIDE)

ACCESSION NBR:9610100277 DOC.DATE: 96/09/30 NOTARIZED: NO FACIL 50-'315 Donald C. Cook Nuclear Power Plant, Unit 1, Indiana DOCKET I M 05000315 AUTH.NAM( AUTHOR AFFILIATION MINOR,J.'W. -'merican Electric Power Co., Inc.

RUSSOFM.E. American Electric Power Co., Inc.

SAMPSON,J.R. American Electric Power Co., Inc.

RECIP.NAME RECIPIENT AFFILIATION

SUBJECT:

Monthly operating rept for Sept 1996 for DC Cook Nuclear C Plant Unit 1.W/961002 ltr.

DISTRIBUTION CODE: IE24D COPIES RECEIVED:LTR ENCL SIZE:

TITLE: Monthly Operating Report (per Tech Specs)

NOTES: E RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD3-1 PD 1 1 HICKMAN,J 1 1 0 INTERNAL: AEOD/SPD/RRAB 1 1 LE CENTER 1 1 NRR/DRPM/PECB 1 1 1 1 EXTERNAL LITCO BRYCE J F H 1 1 NOAC 1 1 NRC PDR 1 1 D

0 U

E NOTE TO ALL NRIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE. TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRIBUTION LISTS OR REDUCE THE NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION, CONTACT THE DOCUMENT CONTROL DESK (DCD) ON EXTENSION 415-2083 I

TOTAL NUMBER OF COPIES REQUIRED: LTTR 9 ENCL 9 I

4

r I American Electric Cook Nuclear Plant P~

t One Cook Place Bridgman, Ml 49106 616 465 5901 October 2, 1996 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 Gentlemen:

K 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 September 1996 is submitted.

Respectfully, J.R. Sampson Plant Manager Attachment c: NRC D.R. Hahn Region III R.C. Callen S. , Hamming INPO Recor'ds Center ANI Nuclear Engineering Department E.E. Fitzpatrick A.A. Blind P.A. Barrett W.G. Smith, Jr.

S.J. Brewer D.W. Paul S.H. Steinhart D.L. Noble ZOOO3~ W.H. Schalk D.G. Turner B.L. Bartlett M.E. Russo

'PbiOi00277 9b0930 050003i5 PDR ADQCK PDR

C1 N.R.C. OPERATING DATA REPORT DOCKET NO. 50-315 DATE 02/Oct/96 COMPLETED BY JW Minor TELEPHONE 616-465-5901 OPERATING STATUS

1. Unit Name D. C. Cook Unit 1

2. Reporting Period Sept 1996 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:

This Mo. Yr. to Date Cumm.

11. Hours in Reporting Period 720.0 6576.0 190656.0

12. No. of Hrs. Reactor Was Critical 552.9 6387.0 144379.3

13. Reactor Reserve Shutdown Hours 0.0 0.0 463.0

14. Hours Generator on Line 546.7 6366.7 142000.8

15. Unit Reserve Shutdown Hours 0.0 0.0 321.0

16. Gross Therm. Energy Gen. (MWH) 1518785 19825198 419243078

17. Gross Elect. Energy Gen. (MWH) 493540 6517480 136129850

18. Net Elect. Energy Gen. (MWH) 473733 6283431 130961530

19. Unit Service Factor 75.9 96.8 75.3 20 Unit Availability Factor 75.9 96.8 75.3

'1.

Unit Capacity Factor (MDC Net) 65.8 95.6 68.5

22. Unit Capacity Factor (DER Net) 64.5 93.7 66.8

23. Unit Forced Outage Rate 24.1 3.2 6.1

24. Shutdowns Scheduled over Next Six Months (Type, Date,and Duration):

Refuelin outa e to be in Februar 28 1997 for an estimated duration of 48 days.

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

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

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

AVERAGE DAILY POWER LEVEL (MWe-Net)

DOCKET NO. 50-315 UNIT ONE DATE 02/Oct/96 COMPLETED BY JW Minor TELEPHONE 616-465-5901 MONTH Sept 1996 AVERAGE DAILY AVERAGE DAILY DAY POWER LEVEL DAY POWER LEVEL 96/09/01 883 96/09/17 895 96/09/02 880 96/09/18 896 96/09/03 879 96/09/19 896 96/09/04 878 96/09/20 893 96/09/05 877 96/09/21 888 96/09/06 888 96/09/22 0 96/09/07 884 96/09/23 0 96/09/08 879 96/09/24 0 96/09/09 872 96/09/25 0 96/09/10 877 96/09/26 0 96/09/11 870 96/09/27 0 96/09/12 871 96/09/28 0 96/09/13 884 96/09/29 287 96/09/14 895 96/09/30 886 96/09/15 891 96/09/16 891

DOCKET NO" 0-315 UNIT NAME: D.C. Cook Unit 1 COMPLETED BY: M.E. Russo TELEPHONE: 616-697-5100 DATE: October 2, 1996 PAGE: Page 1 of 2 MONTHLY OPERATING ACTIVITIES SEPTEMBER 1996 HIGHLIGHTS*

The unit entered this reporting period in Mode 1 and stable at 86%

RTP.

A Reactor trip occurred September 21, 1996 at 2349 EST as a result of a spurious Main'Transformer Sudden Over-Pressure signal most probably induced by a lightning strike.

A descent to Mode 5 was commenced September 24, 1996 at 0020 EST to facilitate two Source Range Detector replacements. Following the detector maintenance, the unit was placed back on line and Reactor power was stabilized at 88.5% RTP September 30, 1996 at 0257 EST.

The unit exited this reporting period in Mode 1 at 88.5% RTP.

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

Gross electrical generation for the month of September was 493540 MWH.

DETAILS+

09-13-96 1445 Commenced power increase to 88% RTP.

1650 Reactor power stabilized at 88% RTP.

09-21-96 2349 Reactor trip on spurious Main Transformer Sudden Over-Pressure signal.

09-24-96 0020 Entered Mode 4. Commenced mode descent to facilitate Source Range Nuclear Instrumentation detector replacements on channels N-31 and N-32.

1155 Entered Mode 5.

09-26-96 2007 Entered Mode 4 ~

09-27-96 1005 Entered Mode 3.

09-28-96 2159 Entered Mode 2.

2255 Reactor critical.

DOCKET NO'-315 UNIT NAME: D.C. Cook Unit 1 COMPLETED BY: M.E. Russo TELEPHONE: 616-697-5100 DATE: October 2, 1996 PAGE: Page 2 of 2 MONTHLY OPERATING ACTIVITIES SEPTEMBER 1996 DETAILS (cont'd)*

09-29-96 0133 Entered Mode l.

0504 Main Turbine Generator paralleled to the grid.

0607 Commenced Reactor power ascension from 11% RTP to 30% RTP.

0807 Reactor power stabilized at 30% RTP.

1140 Commenced power ascension.

1530 Reactor power stabilized at 49.5% RTP.

1815 Placed East Main Feedpump in service and commenced power ascension.

09-30-96 0257 Reactor power stabilized at 88.5% RTP.

• All time entries above are Eastern Standard Time (EST).

S UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO: 50-315 UNIT NAME: D.C. COOK UNIT 1 REPORT MONTH: SEPTEMBER 1996 DATE: October 2, 1996 COMPLETED BY: M.E. Russo TELEPHONE: 616-697-5100 PAGE: Page 1 of 1 METHOD OF SHUTTING LICENSEE DURATION DOWN EVENT SYSTEM COMPONENT CAUSE AND CORRECTIVE ACTION NO. DATE TYPE HOURS REASON REACTOR REPORT NO. CODE CODE TO PREVENT RECURRENCE 328 092196 F 173.3 96-004 n/a n/a At 2349 EST Unit 1 received a Reactor trip signal as a result of ~

spurious Main Transformer Sudden Over-Pressure signal most probably induced by a lightning strike. An unrelated Source Range Nuclear Instrumentation problem required the replacement of detector N-31.

Detector N-32 was replaced also as an elective conservative measure.

The Main Generator was paralleled to the grid 092996 at 0504 EST.

1 2 3 5 F: Forced Reason: Method: Exhibit G Instructions Exhibit I: Same S: Scheduled A: Equipment Failure (Explain) 1: Manual for preparation of data Source B: Maintenance or Test 2: Manual Scram entry sheets for Licensee C: Refueling 3: Automatic Scram Event Report (LER) File D: Regulatory Restriction 4: Other (Explain) (NUREG 0161)

E: Operator Training and License Examination F: Administrative G: Operational Error (Explain)

H: Other (Explain)

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