ML20246A810

Monthly Operating Rept for Jul 1989 for Clinton Power Station Unit 1

ML20246A810
Person / Time
Site:	Clinton
Issue date:	07/31/1989
From:	Holtzscher D ILLINOIS POWER CO.
To:
Shared Package
ML20246A800	List: ML20246A796 ML20246A810 ML20246A827 ML20246A877 U-601510, Revised Monthly Operating Rept for June 1989 for Clinton Power Station Unit 1
References
U-601510, NUDOCS 8908230154
Download: ML20246A810 (5)

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Attachment l' P to U-601510

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. CHALLENGES TO MAIN STEAM SAFETY / RELIEF VALVES l

., $ Month Julv'1989 Following a reactor scram on July 14, 1989, the main steam lines were isolated. 'In response to the resulting pressure increase (to approximately 11050 psig), the control room operators opened safety / relief valve 1B21-F051B.

When reactor pressure had been reduced to approximately 800 psig, valve 1B21-F051B was closed. . Later, when reactor pressure had increased to approximately 1010 psig,- operators opened safety / relief valve 1B21-F041A. When reactor 1 pressure had been reduced to approximately 800 psig, valve 1B21-F041A was l closed.  !

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Pabe 2 of 5 Attachment 1 to U-601510 AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-461 UNIT Clinton 1 DATE 07/31/89 COMPLETED BY D. L. Holtzscher TELEPHONE (217) 935-8881 X3400 MONTH July 1989 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 405 17 0 2 673 18 0 3 886 19 0 4 867 20 0 5 887 21 0 6 874 22 0 7 888 23 0 8 896 24 0 9 867 25 0 10 889 26 29 11 892 27 235 12 888 28 474 13 902 29 655 14 283 30 855 15 0 31 828 16 0 INSTRUCTIONS On this form, list the average daily unit power level in MWe-Net for each day in the reporting month. Compute to the nearest whole megawatt. These figures wil'i be used to plot a graph for each reporting month. 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 should be footnoted to explain the apparent anomaly.

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Page 3 of 5 Attachment 1 to U-601510 OPERATING DATA REPORT DOCKET NO. 50-461 UNIT Clinton 1 DATE 07/31/89 COMPLETED BY D. L. Holtzscher TELEPHONE (217) 935-8R81 X3400 OPERATING STATUS

1. REPORTING PERIOD: July 1989 GROSS HOURS IN REPORTING PERIOD: 744

2. CURRENTLY AUTHORIZED POWER LEVEL (MWt): 2894 MAX. DEPEND. CAPCITY (MDC)

(MWe-Net): 930 DESIGN ELECTRICAL RATING (MWe-Net): 2.3).

3. POWER LEVEL TO WHICH RESTRICTED (IF ANY) (MWe-Net): ligne

4. RFASONS FOR RESTRICTION (IF ANY): N/A THIS MONTH YR TO DATE CUMULATIVE

.5. NUMBER OF HOURS REACTOR WAS CRITICAL... 496.6 973.9 9271

6. REACTOR RESERVE SHUTDOWN HOURS......... 0 0 0

7. HOURS GENERATOR ON LINE................ 446.1 738.8 8883.3

8. UNIT RESERVE SHUTDOWN HOURS............ 0 0 0

9. GROSS THERMAL ENERGY GENERATED (MWH).. 1.098.415 1.498.599 22.292.682

10. GROSS ELECTRICAL ENERGY GENERATED (MWH) 358.897 475.980 7.353.039

11. NET ELECTRICAL ENERGY GENEmsTED (MWH).. 336.012 416.191 6.961.036

12. REACTOR SERVICE FACTOR................. 66.7% 19.1% 62.8%

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13. REACTOR AVAILABILITY FACTOR. . . . . . . . . . . . 66.7% 19.1% 62.8%

14. UNIT SERVICE FACTOR.................... 60.0% 14.5% 60.1%

15. UNIT AVAILABILITY FACTOR............... 60.0% 14.5% 60.1%

16. UNIT CAPACITY FACTOR (Using MDC)....... 48.6% 8.8% 50.7%

17. UNIT CAPACITY FACTOR (Using Design MWe) 48.4% 8.81 50.5%

18. UNIT FORCED OUTAGE RATE................ 40.0% 69.2% 19.6%

19. SHUTDOWNS SCHEDULED OVER NEXT SIX MONTHS (TYPE, DATE, DURATION OF EACH):

NONE

20. IF SHUT DOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: 08/06/89

21. UNITS IN TEST STATUS (PRIOR TO COMMERICAL OPERATION): FORECAST ACHIEVED INITIAL CRITICALITY 2/27/87 INITIAL ELECTRICITY (Synchronization) 4/24/87 COMPLETION OF WARRANTY RUN 10/09/87 i

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