U-601824, Monthly Operating Rept for Mar 1991 for Clinton Power Station Unit 1

Monthly Operating Rept for Mar 1991 for Clinton Power Station Unit 1

ML20084U416
Person / Time
Site:	Clinton
Issue date:	03/31/1991
From:	Spangenberg F ILLINOIS POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
U-601824, NUDOCS 9104170255
Download: ML20084U416 (5)

Text

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U.601824 o u o 92 e ' i n t."

. Idlll0IS POWER

h00 SOllTil 2Till 5!!tt'l.T. l' O. IlOX 511. Ill.CA I Uit ll.i.lNOIS (>252N IN05 April 11, 1991 i

l 10CFR50.36 Docket No. 50 461 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555

Subject:

Clinton Power Station, Unit 1 linrch 1991 Monthly Or. erat ing Report NPF-62 Dear Sir; Please find in Attachment 1 the Monthly Operating Report for Clinton Power Station, Unit 1, for the period ending March 31, 1991.

Sincerely yours, F. A. S ange g, 11 Manager 1.icensing and Safety TSA/alh i

Attachment l

cc: NRC Region III Regional Administrator NRC Resident Office Illinois Department of Nuclent Safety

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' ' Attachment 1 l to U.601824 ,

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a CHALLENGES TO MAIN STEAM SAFETY / RELIEF VALVES i

n Month March 1991 i

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. Attachment I to U.

i AVERACE DAILY UNIT POWER LEVEL DOCKET NO. 50 461 .

UNIT Clinton 1 DATE 03/31/91 COMPLETED BY P. A. Sonntenberc. III TELEPHONE (217) 935-8881 X3400

, MONTH March 1991 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL

- (MWo. Net) (MWe. Net) 1 0 17 763 2 0- 18 914 3 0 19 931 4 0 20 919 5 0 21 937 6___ 0 22 935 7 __ ,_, 0 23 ___ 939 8 0 ,, 24 930 l 9 16 25 937 10 157 26 937 11 224 27 937 12: 296 _ 28 936 13 294 29 937 14 363 30 937 15- 602 31 907 16 -725

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'. Attachment I to U-OPERATING DATA REPORT DOCKET NO. 50 461 UNIT Clinton 1 DATE 03/31/91 COMPLETED BY F. A. S o n n r enbe r r_ . Q1 TELEPHONE (217) 935 8881 X3400 OPERATING STATUS

1. REPORTING PERIOD: March 1991 GROSS HOURS IN REPORTING PERIOD: 744

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

(MWe Net): 930 DESIGN ELECTRICAL RATING (MWe Net): 211

'3. POWER LEVEL TO VHICH RESTRICTED (IF ANY) (MWe Net): E2ne 4 REASONS FOR RESTRICTION (IT ANY): N/A THIS MONTH YR TO DATE CUMULATIVE

5. NUMBER OF HOURS REACTOR WAS CRITICAL. . . 659 659 18.027.8

6. REACTOR RESERVE SHUTDOWN HOURS......... 0.0 0.0 0.0

7. HOURS GENERATOR ON LINE................ 538.8 538.8 17.239.0 l

8. UNIT RESERVE SHUTDOWN HOURS............__ 0.0 0.0 0.0

9. GROSS THERMAL ENERGY GENERATED (MWH)... 1.273.880 1.273.880 42.870.789

10. CROSS ELECTRICAL ENERGY GENERATED (MWH) 414.347 414.347 14.160.431

11. NZT ELECTRICAL ENERGY GENERATED (MWH).. 391.464 391.464 13.394.835

12. REACTOR SERVICL FACTOR................. 88.64 30.5% 61 61

'13. REACTOR AVAIIABILITY FACTOR. . . . . . . . . . . . 88.6% 30.5% 61.4%

14. UNIT SERVICE FACTOR.................... 72.4% 24.9% 58.7%

15. UNIT AVAI LABILITY FACTOR . . . . . . . . . . . . . . , 72.4% 24.9% $8.7%

16. UNIT CAPACITY FACTOR (Using MDC)....... 56.6% 19.5% 49.1%

17. UNIT CAPACITY FACTOR (Using Design MWe) 56.4% 19.4% 48 31 18 .- UNIT FORCED OUTAGE RATE. . : . . . . . . . . . . . . . 18.1% 28.1% 17.4%

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:

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UNIT SHUTDOWS AND FOWER LEDUCTIONS DOCKET NO. 50-461 UNIT Clinton 1 DATE 03/31/91 COMFLETED BY F. A. Spanrenberr. III TELEPHONE (217) 935-8881 X3400 REPORT MONTH March 1991' METHOD OF TYPE SHUITING DOW F: FORCED DURATION THE REACTOR OR CORRECTIVE ACTIONS NO. DATE S: SCHEDULED fHOURS) REASON (1) REDUCING FOVER(2) / COMMENTS 90-08 901014' F 194 B: Forced extension of the 4: Continued shutdown 90-08 second refueling outage to correct deficiencies, including 120 hours0.00139 days <br />0.0333 hours <br />1.984127e-4 weeks <br />4.566e-5 months <br /> to make repairs to misaligned and damaged Residual Heat Removal system suction line pipe hangers, identified during the second refueling outage (RF-2) not related to work originally in the RF-2 scope.

91-01 910309 F 16.8 A: Due to problems experienced 1: Operators Manually Tripped the while transferring loads Turbine. Reactor power was to the generator bus, operators maintained at approximately 15%.

manually tripped the. turbine. Investigation determined that a transducer was not reinstalled in the Unit Auxiliary Transformer during maintenance performed during RF-2.

(1) Reason A-Equipment Failure (explain), B-Maintenance or Test, C-Refueling, D-Regulatory Restriction, E-Operator Training & License Examination, F-Administrative, G-Operational Error (explain),

H-Other

.(2) Method 1-Manual, 2-Manual Scram. 3-Auto' Scram, 4-Continued

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