ML20072E817

Monthly Operating Rept for Jul 1994 for Wolf Creek Nuclear Generating Station

ML20072E817
Person / Time
Site:	Wolf Creek
Issue date:	07/31/1994
From:	Jahannes R WOLF CREEK NUCLEAR OPERATING CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
CO-94-0019, CO-94-19, NUDOCS 9408230103
Download: ML20072E817 (7)

Text

-- . .. .

W$LF CREEK NUCLEAR OPERATING CORPORATION Richard N. Johannes Chief Admernstraftve Offcer August 15, 1994 CO 94-0019 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station P1-137 Washington, D. C. 20555

Subject:

Docket No. 50-482: July, 1994, Monthly Operating Report Gentlemen:

Attached is the July, 1994, Monthly Operating Report for Wolf Creek Generating Station. This submittal is being made in accordance with the requirements of Technical Specification 6.9.1.8.

Very truly yours,

/ ,

. th//Wh Richard N. J nnes RNJ/jad Attachment cc: L. J, Callan (NRC), w/a D. Graves (NRC), w/a M. A. Miller (NRC), w/a W. D. Reckley (NRC) , w/a J. F. Ringwald (NRC) , w/a r n r. n n g, s' 4 d L i. * .

9408230103 940731 PDR ADOCK 05000482 R PDR PO. Box 411/ Burhngton. KS 66839 / Phone. (316) 364-8831 L ,

An Equal Opportunity Employer MT/HC/ VET / '

l a

, , = . . . . . . . .- . . .- . . .-

l

. 1 i . ,

WOLF CREEK NUCLEAR OPERATING CORPORATION WOLF CREEK GENERATING STATION I

MONTHLY OPERATING REPORT MONTH: JULY YEAR: 1994 Docket No.9 50-482 Facility Operating License No.: NPF-42 Report No. 113 r

l p -v- 4 +.-.e

.. - _ _ _ _ - .m_ _ _ _ _ _ _ . - _ . ________m. _ . _ _ . _ . _ _ _ .. __.

Attaghment 1 to CO 94-0019

SUMMARY

l The following report highlights the operating experience of Wolf Creek Generating

-Station for the month of July 1994. This report is being provided pursuant to Technical Specification 6.9.1.8.

- I.

SUMMARY

OF OPERATING EXPERIENCE The. unit operated at about 96% power from July 1 through July 17 due to main condenser tube fouling. On July 17, when a switchyard breaker opened, power was reduced to 80%.

The breaker was reclosed after 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and power was restored to approximately 96%, where it remained until July 19. Condenser tube cleaning on July 19 and July 20 allowed the unit to return to full power for the remainder of the month of July.

II. MAJOR SAFETY RELATED MAINTENANCE ACTIVITIES No major safety related maintenance was performed during the month of July, t

i J

4 i

1 l

l l

l Wolf Creek Generating Station i Monthly Operating Report l July 1994 l Page 1 of 5

- =, , -- _ . . - - . . - .. - , , , . . . _ - _ . - - - - , . . - . - _ . . ,,-_- _ - , -

~

j

)

Attaghment 1 to CO 94-0019 OPERATING DATA REPORT DOCKET NO. 50-482 WOLF CREEK GENERATING STATION WOLF CREEK NUCLEAR OPERATING CORPORATION DATE 08-01-94 TELEPHONE 316-364-8831 OPERATING STATUS

1. Reporting Period: July, 1994 Gross Hours in Reporting Period: 744

2. Currently Authorized Power Level (MWt): 3565 Max. Depend. Capacity (MWe-Net)> 1160 Design Electrical Rating (MWo-Met) 1170

.3. Power Level to Which Restricted (If Any) (MWe-Net) . N/A

4. Reasons for Restriction (If Any) N/A This Month Yr. to Date Cumulative

5. Number of Hours Reactor was Critical 744.0 5,006.2 63,368.6

6. Reactor Reserve Shutdown Hourc 0.0 0.0 339.8

7. Hours Generator on Line 744.0 4,969.7 62,623.1

8. Unit Reserve Shutdown Hours 0.0 0.0 0.0

9. Gross Thermal Energy Generated (MWH) 2,573,456 17,147,776 206,412,187

10. Gross Electrical Energy Generated (MWH) 880,689 5,943,779 71,797,328

11. Net Electrical Energy Genetated (MWH) 845,865 5,708,279 68,553,951

12. Reactor Service Factor 100.0 98.4 81.1

13. Reactor Availability Factor 100.0 98.4 81.6

14. Unit Service Factor 100.0 97.7 80.2

15. Unit Availability Factor 100.0 97.7 80.2

16. Unit Capacity Factor (Using MDC) 98.0 98.3 77.5

17. Unit Capacity Factor (Using Design MWe) 97.2 95.9 75.0

18. Unit Forced Outage Rate 0.0 1.2 5.3

19. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of each): i Refueling outage scheduled to begin September 15, 1994, lasting 58 days l

20. If Shut Down at End of Report Period,' Estimate Date of Startup: N/A Wolf' Creek Generating Station Monthly Operating Report July 1994 Page 2 of 5

Attaghment 1 to CO 94-0019 AVERAGE DAILY UNIT POWER LEVEL DOCKET NO, 50-492 WOLF CREEK GENERATING STATION WOLF CREEK NUCLEAR OPERATING CORPORATION DATE 08-01-94 TELEPHONE 316-364-8831 MONTl! July, 1994 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Met) (MWe-Net) 1 1127 17 1091 2 1137 18 1105 3 1124 19 1110 4 1125 20 1157 5 1124 21 1160 6 1123 22 1152 7 1127 23 1157 8 1128 24 1153

)

9 1156 25 1161 10 1147 26 1162 11 1129 27 1165 12 1122 28 1159 1 13 1118 29 1153 14 1117 30 1164 15 1114 31 1164 16 1116 I

Wolf Creek Generating Station Monthly Operating Report July 1994 Page 3 of 5

Attachment-1 to CO 94-0016 UNIT SHUTDOWN AND POWER REDUCTIONS -

DOCKET NO. 50r4E2 WOLF CREEK GENERATING STATION WOLF CREEK NUCLEAR OPERATING CORPORATION DATE 08-01-94 TELEPHOhT 316-364-8931 Type METHOD OF SHUTTING F: FORCED DURATION REASON DOWN THE REACTOR CORRECTIVE ACTIONS / COMMENTS No Date S: SCHEDULED (Hours) (1) OR REDUCING POWER (2)

. 1 7/17/94 F 5 F 5 A switchyard breaker opened and could not be reclosed for 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.

k

SUMMARY

The unit operated at about 96% power from July 1 through July 17 due to condenser tube fouling. On July 17, when a switchyard breaker opened, power was reduced to 80%. The breaker was reclosed after 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and power was restored to approximately 96%, where it remained until July 19. Condenser tube cleaning on July 19 and July 20 allowed the unit to return to full power for the remainder of the month of July.

1) REASON: A :- EQUIPMENT FAILURE (EXPLAIN) E: OPERATOR TRAINING AND LICENSE EXAMINATION (2) METHOD: 1. MANUAL B: MAINTENANCE OR TEST- F: ADMINISTRATIVE 2. MANUAL SCRAM C: REFUELING G: OPERATIONAL ERROR (EXPLAIN) 3. AUTOMATIC SCRAM D: REGULATORY RESTRICTION H: OTHER (EXPLAIN) 4. CONTINUED

5. REDUCED LOAD

9. OTHER Wolf Creek Generating Station Monthly Operating Report July 1994 Page 4 of 5 i

Attaghment l'to CO 94-0019 O

WOLF CREEK NUCLEAR OPERATING CORPORATION WOLF CREEK GENERATING STATION UNIT NO. 1 MONTH July, 1994

SUMMARY

OF OPERATING EXPERIENCE Listed below in chronological sequence is a summary of operating experiences for this:

month which required load reduction or resulted in significant non-load related incidents.

DATE IlfdC EVEILI July 1, 1994 0000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> Unit at 96% power.

July 17, 1994 0712 hours0.00824 days <br />0.198 hours <br />0.00118 weeks <br />2.70916e-4 months <br /> Power reduced to 80% when switchyard breaker opened.

July 17, 1994 1304' hours Unit restored to 96% power.

I

. July 20, 1994 1600 hours0.0185 days <br />0.444 hours <br />0.00265 weeks <br />6.088e-4 months <br /> Unit at 100% power following condenser tube cleaning.

July 31, 1994 2400 hours0.0278 days <br />0.667 hours <br />0.00397 weeks <br />9.132e-4 months <br /> Unit at 100% power.

Wolf Creek Generating Station j Monthly Operating Report July, 1994 Page 5 of 5

, . - , _ .