ML20235U408

Monthly Operating Rept for Sept 1987

ML20235U408
Person / Time
Site:	Braidwood
Issue date:	09/30/1987
From:	Fitzpatrick E, Peacock B COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
EEF-87-1484, NUDOCS 8710140078
Download: ML20235U408 (8)

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BRAIDHOOD NUCLEAR P0HER STATION- l UNIT 1 MONTHLY PERFORMANCE REPORT COMMONWEALTH EDISON COMPANY NRC DOCKET NO. 050-456-LICENSE NO. NPF-72 l

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B. OPERATING DATA REPORT DOCKET NO.: 50-456 UNIT: Braidwood 1 DATE: 10/09/87 i COMPILED BY: B. M. Peacock TELEPHONE: (815)458-2801 i ext. 2480 '

OPERATING STATUS

1. Reporting Period: September, 1987 Gross Hours: 720.0 1

2. Currently Authorized Power Level (MWt): 3411 Design Electrical Rating (MWe-gross): 1175 Design Electrical Rating (MWe-net): 1120 Max Dependable Capacity (MWe-gross): 1175 Max Dependable Capacity (MWe-net): 1120 Power level to which restricted (If Any): None 3.

4. Reasons for restriction (If Any): None THIS MONTH YR TO DATE CUMULATIVE J

5. Report period Hours: 720.0 1944.0 1944.0 j

6. Hours Reactor Critical: 458.0 1059.9 1059.9 4

7. RX Reserve Shutdown Hours: 0.0 0.0 0.0 1

8. Hours Generator on Line: 351.3 664.8 664.8

9. Unit Reserve Shutdown Hours: 0.0 0.0 0.0

10. Gross Thermal Energy (MWH): 409163 685873 685873

11. Gross Elec. Energy (MWH): 109970 163119 163119

12. Net Elec. Energy (MWH): 84216 106192 106192

13. Reactor Service Factor: N/A N/A N/A

14. Reactor Availability Factor: N/A N/A N/A

15. Unit Service Factor: N/A N/A N/A

16. Unit Availability Factor: N/A N/A N/A

17. Unit Capacity Factor (MDC net): N/A N/A N/A

18. Unit Capacity Factor (DER net): N/A N/A N/A

19. Unit Forced Outage Rate: N/A N/A N/A

20. Unit Forced Outage Hours: 197.5 1084.0 1084.0

21. Shutdowns Scheduled Over Next 6 Months:

November 13. 1987 - Lweek surveillance outage

22. If Shutdown at End of Report Period, Estimated Date of Startup:

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

FORECAST ACHIEVED Initial Criticality 05/23/87 05/29/87 Initial Electricity 07/11/87 07/12/87 Commercial Operation 12/29/87 (4957z)

C. AVERAGE DAILY UNIT NET POWER LEVEL LOG DOCKET NO.: 50-456 UNIT: Braidwood 1 DATE: 10/09/87.-

COMP 7. LED BY: B. M. Peacock TELEPHONE: (815)458-2801 ext. 2480 c

MONTH: September, 1987 I

1. 0 17. _ 170

2. 0 18. 0

3. 0 19 ~. 0 l

4. 0 '20. 196

5. 71 21. 216

6. 201 22. 252-

7. 239 23. 233

8. 241 24. 0

9. 159 25. 0

10. 0 '26. 221

11. 0 -27, 309

12. 0 28. 457

13. 0 29. 486

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14. 0 30. 481

15. 0

16. O INSTRUCTIONS-l On this form list the average daily unit power. level _ in MWe-Net for each l day in the reporting month. . Compute to the nearest whole megawatt.

These figures will be used to plot a graph for each reporting month. 1 Note that when maximum dependable capacity is.used for the net electrical rating of the unit there may be occasions when the daily average power level exceeds.the 100% line (or the restricted power level line). .In  ;

such cases'the' average daily unit power output sheet'should be footnoted  ;

to explain the apparent anomaly.

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.- j F. LICENSEE EVENT REPORTS The following is a tabular summary of all Licensee Event Reports submitted during the reporting period, September 1 through  !

September 30, 1987. This information is provided pursuant to the J reportable occurrence reporting requirements as set forth in 10 CFR 50.73. l l

Licensee Event _ red 0rt s Reoort Number Dati Title of Occurrence '

87-041-00 09/03/87 Technical Specification i Surveillance not performed when i Unit 1 computer was inoperable.

87-042-00 09/03/87 Control Room ventilation engineered safety feature actuation signal due to spurious electrical noise from condensation in detector chambers.

87-043-00 09/07/87 Missed reactor coolant specific activity sample due to miscommunications.  !

87-044-00 09/04/87 Closure of RH discharge isolation valve due to inadequate operating procedure review by the shift foreman.

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C:mmonw:alth Edison BraidwoodNuclear Power St tion Route #1, Box 84 Brdcoville, Illinois 60407 Telephono 815/458-2801 EEF/87-1484 1 4

October 9, 1987 Director, Office of Resource Management United States Nuclear Regulatory Commission Washington, D.C. 20555 ATTN: Document Control Desk l I

Gentlemen:

Enclosed for your information is the Monthly Performance Report covering Braidwood Nuclear Power Station for the period September 1 through September 30, 1987. j Very truly yours, "l9/97 E. E. Fit atrick Station Manager j Braidwood Nuclear Power Station- l EEF/RCB/mjv ')

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Attachments cc: A. B. Davis, NRC, Region III i NRC Resident Inspector Braidwood l Gary Wright, Ill. Dept. of Nuclear Safety T. J. Maiman K. L. Graesser L. D. Butterfield Nuclear Fuel Services, PHR Plant Support

.L. Anastasia, Station Nuclear Engineering INP0 Records Center l Performance Monitoring Group,. Tech Staff.Braidwood Station Nuclear Group, Tech Staff Braidwood Station S. Sands - USNRC P. L. Barnes J

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I. Monthly Report for Braidwood Unit 1 A. Summary of Operatina'Exoerience i 1

The unit entered.the month of September-in a shutdown mode while modifications to the. Auxiliary Feedwater System were.  ;

completed. The turbine was synchronized to the grid on  ;

. September 5 and power was increased to approximately 200_ 1 MHe. On September 9, the unit was shutdown from outside the Control Room in accordance with startup test BwSU "

RC-35. The turbine was again synchronized to the grid on September 16, however,.due to an Electro-Hydraulic Control System fluid leak,.on September 18 the turbine was taken I off line. The unit was re-synchronized'to the grid on l September 19. An unplanned reactor trip took place on September 23 due to an inadvertent unit transformer deluge .i signal. An over excitation of the main power transformer caused a reactor trip on September 24 prior to re-synchronization. On September'26, the unit was ,

synchronized to the grid and power was increased to 40%.  !

Power was increased to 49% on September 27 and remained at that level through the end of the month. l

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