U-601245, Monthly Operating Rept for Jul 1988 for Clinton Station Unit 1

Monthly Operating Rept for Jul 1988 for Clinton Station Unit 1

ML20207D571
Person / Time
Site:	Clinton
Issue date:	07/31/1988
From:	Holtzscher D ILLINOIS POWER CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
U-601245, NUDOCS 8808150388
Download: ML20207D571 (7)

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.Attachmsnt to U-601245-CHALLENGES TO MAIN STEAM SAFETY / RELIEF VALVES Month July 1988 The following. Safety / Relief Valves (S/RVs) were used for pressure control following a Reactor Scram on 7/12/88. The valves were cycled in the following order 1B21F047F, 41F, 51B, 41B, 47B, 51D, 47D, 41D, 47A, 41A, 51G,'41L. Only one valve was open at a time. The valves were cycled for vessel pressure control between 0545 7/12/88 and 0745 7/12/88 af ter a group 1 isolation (MSIV's Shut) . The valves were reseated between 800-900 psig.

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. MONTHLY OPERATING REPORT FORMAT AND' INSTRUCTIONS 1 AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-461 UNIT Clinton 1 DATE 07/31/88 COMPLETED BY D. L~. Holtzscher-TELEPHONE (217) 935-8881- X3400 MONTH July 1988 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 905 17 809 2 911 18 751 _

3 886 19 776 _

4 908 20 821 5 907 21 838 6 904 22 839 __

7 903 23 841 8' 892 -24 821-

. 9 ~886 25 832

- 10 876- 26 840 11 883 -27 850 12 164 28 763 13 31 29 819 14 522 30 801 15 615 31 801 16- 863

-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 will 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 sheet should be footnoted to explain the apparent anomaly.

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• Paga.3 of 6 Attachmsnt to U-601245 OPERATING DATA REPORT DOCKET NO. 50-461 UNIT. Clinton 1 DATE- 07/31/88 COMPLETED BY D. L. Holtzscher TELEPHONE (217) 935-8881 X3400 OPERATING STATUS

1. REPORTING PERIOD: July 1988 GROSS HOURS IN REPORTING. PERIOD: 744

2. CURRENTLY AUTHORIZED POWER LEVEL (MWt): 2894 MAX DEPEN!'. CAPACITY (MDC)

(MWe-Net): 930 DESIGN ELECTRICAL RATING (MWe-Net): 933

3. POWER LEVEL TO WHICH RESTRICTED (IF ANY) (MWe-Net): None

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

5. -NUMBER OF HOURS. REACTOR WAS CRITICAL... 716.5 3999.0 4897.3

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

7. H07RS GENERATOR ON LINE................ 710.2 3897.7 4796'.0

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

9. GROSS THERMAL ENERGY GENERATED (MWH)... 1,879,592 10,414,795 12,560,295

10. GROSS ELECTRICAL ENERGY GENERATED (MWH) 611,611 3,450,858 4,167,508

11. NET. ELECTRICAL ENERGY GENERATED (MWH).. 582,150 3,290,230 3,974,333

12. REACTOR SERVICE FACTOR................. 96.3% 78.2% 81.5%

13. REACTOR AVAILABILITY FACTOR............ 96.3% ,_

78.2% 81.5%

14. UNIT SERVICE FACT 0R.................... 95.5% 76.3% 79.8%

15. UNIT AVAILABILITY FACTOR............... 95.5% 76.3% 79.8%

16. UNIT CAPACITY FACTOR (Using MDC)....... 84.1% 69.27 71.1%

17. UNIT CAPACITY FACTOR (Using Design MWe) 83.9% ,

69.0% 70.9%

18. UNIT FORCED OUTAGE RATE................ 4.5% 4.4% 3.6%

19.. SHUTDOWNS SCHEDULED OVER NEXT SIX MONTHS (TYPE, DATE, AND DURATION OF EACH): Refuel Outage. 01/03/89, 69 days

20. IF SHUT DOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: N/A

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

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U-601245 -

UNIT SHUTDOWNS AND POWER REDUCTIONS ,

DOCKET NO. 50-461 UNIT Clinton 1 -

DATE 06/30/88 COMPLETED BY- D. L. Holtzscher TELEPHONE (217) 935-8881 X3400 REPORT MONTH July 1988 METHOD OF TYPE SHUTTING DOWN F: FORCED DURATION THE REACTOR OR NO. DATE S: SCHEDULED (HOURS) REASON REDUCING POWER CORRECTIVE ACTIONS / COMMENTS 17 880712 F 33.8 A: A failure of electri- 2: Manual Scram Reason tal components in the condenser pit high A-Equipment Failure water level pump trip . (explain) circuit caused all B-Maintenance or Test three circulating water C-Refueling pumps to trip even D-Regulatory Restriction though no high level E-Operator Training &

existed. The loss of License Examination circulating water to F-Administrative the condenser caused G-Operational Error condenser vacuum to (explain) decrease rapidly H-Other prompting the reactor operator to manually Method SCRAM the reactor.

1-Manual 2-Manual Scram 3-Auto Scram 4-Continued

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-U-601245' -

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UNIT SHUTDOWNS AND POWER REDUCTIONS .

DOCKET NO. 50-461

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UNIT- Clinton I DATE 07/31/88 COMPLETED BY D.-L. Holtzscher TELEPHONE (217) 935-8881 X3400 EEPORT MONTH July 1988 METHOD OF TYPE SHUTTING DOWN F: FORCED DURATION THE REACTOR OR NO. DATE Sc SCHEDULED (HOURS) REASON REDUCING POWER CORRECTIVE ACTIONS / COMMENTS 18 880728 F 0 G: Lost Feed Water 1: Manual Reason Heaters IA, 2A, 3A, reduction in 4A, 5A, 6A and 6B due recirculation A-Equipment Failure to attempting to flow and (explain) change level control insertion of B-Maintenance or Test of Flash Tank 1A from control rods C-Refueling normal to emergency D-Regulatory Restriction control for Control E-Operator Training &

and Instrumentation License Examination work on the flash tank F-Administrative valve controller. G-Operational Error '

Reduced power to (explain) approximately 70% to H-Other compensate for the reduced feed water Method temperature.

1-Manual 2-Manual Scram 3-Auto Scram 4-Continued

Pags 6 of 6 Atte.chmsnt to U-601245 REFUELING INFORMATION

1) Name of facility Clinton Power Station

2) Scheduled date for next refueling shutdown January 3, 1989

3) Scheduled date for restart following refueling March 12, 1989

4) Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment? Yes If Yes, list in general what th:se will be:

An Operating License and Technical Specification change in response to the Raduced Feedwater Temperature Analysis, and Maximum Extended Operating Domain (MEOD) Analysis.

5) Have the reload fuel design and core configuration been reviewed by the Facility Review Group (FRG) to determine whether any unreviewed s:fety questions are associated with the core reload? No If no su:h review has taken place, when is it scheduled? August, 1988

6) Scheduled date(s) for submitting proposed licensing action and supporting information:

The reload license acendment is scheduled to be submitted on Septenber 2, 1988.

7) List any important licensing considerations associated with refueling e.g., new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, new operating procedures.

MEOD Analysis. 0.2. "Earrier Fuel" will be used to replace discharged fuel.

8) Number of fuel assemblies a) in the core 624 b) in the spent fuel storage pool 0

9) The present licensed spent fuel pool storage capacity 2,522 The size of any requested or planned increase in licensed storage capacity 0 (number of fuel assemblies)

10) The projected date of the last refueling that can be discharged to the spent fuel pool, assuming the present licensed capacity 2010 .

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- L30-88 (08 45 )-LP 1A.120

. /LLINDIS POWER 00MPANY CLINTON PCMER STATION, P.o. BOX 678, CLINTON, ILLINOIS 61727 August 5, 1988 10CFR50.36 RG 1.16 Docket No. 50-461 Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Subject:

Clinton Power Station, Unit 1 July 1988 Monthly Operating Report NPF-62

Dear Sir:

Please find enclosed the Monthly Operating Repcrt for Clinton Power Station, Unit 1,-for the period ending July 31, 1988.

Sincerely yours,

9. 7. /k D. L. Holtzscher Acting Manager Lict.nsing and Safety GSL/krm 2nclosure cc: Regional Administrator, Region III, USNRC fh

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