ML20116M547

Revised Monthly Operating Rept for June 1996 for Wolf Creek) Generating Station

ML20116M547
Person / Time
Site:	Wolf Creek
Issue date:	07/08/1996
From:	WOLF CREEK NUCLEAR OPERATING CORP.
To:
Shared Package
ML20116M519	List: ML20116M513 ML20116M543 ML20116M547
References
NUDOCS 9608200206
Download: ML20116M547 (2)

Text

.

Attachment 2 to WO 96-0120

,Psga 1 of 2 OPERATING DATA REPORT DOCKET NO. 50-482 WOLF CREEK GENERATING STATION

, WOLF CREEK NUCLEAR OPERATING CORPORATION DATE 7-8-96 TELEPHONE 316-364-8831 OPERATING STATUS

1. Reporting Period: June, 1996 Gross Hours in Reporting Period: 720

2. Currently Authorized Power Level (MWt) : 3565 Max. Depend. Capacity (MWe-Net): 1167 Design Electrical Rating (MWe-Net): 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 680.7 2,718.2 77,334.9

6. Reactor Reserve Shutdown Hours 0.0 0.0 339.8

7. Hours Generator on Line 670.9 2,663.2 76,442.9 f

8. Unit Reserve Shutdown Hours 00 0.0 0.0

9. Gross Thermal Energy Generated (MWh) 2,349,911 9,237,833 254,579,503

10. Gross Electrical Energy Generated (MWh) 804,513.0 3,191,319 88,450,239

11. Net Electrical Energy Generated (MWh) 769,603.0 3 M2.,669 84,459,520

12. Reactor Service Factor 94.5% 62.2% 81.5%

13. Reactor Availability Factor 94.5% 62.2% 81.9%

i

14. Unit Service Factor 93.2% 61.0% 80.6%

i

15. Unit Availability Factor 93.2% 61.0% 80.6%

16. Unit Capacity Factor (Using MDC) 91.6% 59.3% 78.2%

17. Unit Capacity Factor (Using Design MWe) 91.4% 59.2% 76.1%

18. Unit Forced Outage Rate 6.8% 5.6% 4.8%

19. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of each) :

None

20. If Shut Down at End of Report Period, Estimate Date of Startup: N/A Wolf Creek Generating Station Monthly Operating Report June, 1996 9608200206 960814 PDR ADOCK 05000482 Page 3 of 6 R PDR

• to WO 95-0120 .

Page 2 of 2 UNIT SHUTDOWN AND POWER REDUCTIONS DOCKI(I' NO. 50-482 WOLF CREEK GENERATING STATION WOLF CREEK NUCLEAR OPERATING CORPORATION DATE 7-8-96 TELEPHONE 316-364-8831 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 6/6/96 F 49.1 A 3 Replacement of failed pins in Main l Faedwater Regulating Valves SU30EARY: The unit operated at or near 100% power, Mode 1, June 1, 1996, until 1320, June 6, 1996, when the Unit experienced a reactor trip caused by a "lo-lo" level in Steam Generator "C" which resulted from the failure of a 3/16" roll pin in the "C" Steam Generator Main Feedwater Regulating Valve (FRV) which allowed the valve plug to separate from the valve stem. After the pin was replaced in the 'C" FRV and pins were replaced in two other FRVs, the unit reached criticality at 0435, June 8, 1996, and the main generator output breakers were closed at 1421, June 8, 1996. The unit remained at or near 100% power, Mode 1, throughout the remainder of June, 1996.

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 l D: REGULATORY RESTRICTION H: OTHER (EXPLAIN) 4. CONTINUED

5. REDUCED LOAD

9. OTHER Wolf Creek Generating Station Monthly Operating Report June, 1996 Page 2 of 6