ML20093H299

Monthly Operating Rept for Sept 1995 for Wolf Creek Generating Station

ML20093H299
Person / Time
Site:	Wolf Creek
Issue date:	09/30/1995
From:	Maynard O WOLF CREEK NUCLEAR OPERATING CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
WO-95-0152, WO-95-152, NUDOCS 9510200060
Download: ML20093H299 (7)

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WQLF CREEK NUCLEAR OPERATING CORPORATION 4

Otto L Maynard Vice President Plant Operations October 16, 1995 WO 95-0152 U. S. Nuclear Regulatory Commission 4

ATTN: Document Control Desk Mail Station P1-137 Washington, D. C. 20555

Subject:

Docket No. 50-482: September, 1995, Monthly

Operating Report Gentlemen

Attached is the September, 1995, 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,

/tf/lJ'l Otto L. Maynard OLM/jad Attachment cc: L. J. Callan (NRC), w/a D. F. Kirsch (NRC), w/a J. F. Ringwald (NRC) , w/a J. C. Stone (NRC), w/a O r ;? r , <<, ,

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9510200060 950930 PDR ADOCK 05000482 R PDR PO. Box 411/ Burlington, KS 66839 / Phone. (316) 364-8831 F#

An Equal Opportunity Employer M.F/HC/ VET l

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/ Attarchraent to WO 95-0152-page.1 of'.6 ,

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] WOLF-CREEK NUCLEAR OPERATING CORPORATION i

WOLF CREEK GENERATING STATION 4

i- MONTHLY OPERATING REPORT c MONTH ' ..

September YEAR: 1995 i' Docket No.: 50-482~

i j ' Facility ~ Operating License No.'s NPF-42 j Report No. 127 I'

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Attachment to UO 95-0152

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SUMMARY

The following report highlights the operating experience of Wolf Creek Generating Station for the month of September, 1995. This report is being provided pursuant to Technical Specification 6.9.1.8.

I. SUMM RY OF OPERATING EXPERIENCE i

The unit operated at or near 100% power, Mode 1, from September 1, 1995, through j September 17, 1995, at 1200 when power was reduced at approximately 1.3% per hour  !

for the scheduled outage of the Benton Line. On September 18, 1995, at 0405, the unit stabilized at 78% power, 948 MWe. On Septenber l'O, 1995, at 1329, the Benton Line was restored to service, and at 1427, the unit co nmenced power increase at 3%

per hour from 947 MWe. The unit experienced load loss caused by Turbine control irregularities during power increase, and at 1543, the unit stabilized at 760 MWe, Following unit maintenance on Turbine Controls, at 2030 power was I_

j increased at 3% per hour. On September 21, 1995, at 1800, the unit stabilized at 100% power. On September 27 1995, at 2003, the unit began power reduction at 3% per hour for additional Turbine control maintenance. On September 23, 1995, a'.

0558, the unit stabilized at 75% power. Maintenance was completed, and on Septen$er 23, at 1108, power was increased at 3% per hour. On Septemb9r 23, 1995, at 2222, the unit stabilized at 100% power, and maintained power through the remainder of September.

II. MMOR SAFETY RELATED MAINTENANCE ACTIVITIES NONE y

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, Wolf Creek Generating Station i 2

Monthly Operating Report September, 1995 Page 2 of 6

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Attachmtnt to WO 95-0152 OPERATING DATA REPORT

. DOCKET NO. 50-492

• WOLF CREEK GENERATING STATION

- WOLF CREEK NUCLEAR OPERATING CORPORATION l DATE 10-5-95 TELEPHONE 316-364-8931 OPERATING STATUS

1. Reporting Period: September, 1995 Gross Hours in Reporting Period: 720

2. Currently Authorized Power Level (MWt) : 3565 Max. Depend. Capacity (NWe-Net): 1167 i 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 720 6,439.7 72,407.8

6. Reactor Reserve Shutdown Hours 0.0 0.0 339.8

7. Hours Generator on Line 720 6,416.1 71,570.7

8. Unit Reserve Shutdown Hours 0.0 0.0 0.0

9. Gross Thermal Energy Generated (MWh) 2,468,895 22,482,190 237,514,508

10. Gross Electrical Energy Generated (FGih) 851,618 7,770,637 82,534,852

11. Net Electrical Energy Generated (MWh) 813,208 7,443,769 78,818,443

12. Reactor Service Factor 100.0% 98.3% 82.0%

13. Reactor Availability Factor 100.0% 98.3% 82.4%

t4. Unit Service Factor 100.0% 97.9% 81.0%

35. Unit Availability Factor 100.0% 97.9% 81.0%

16. Unit Capacity Factor (Using MDC) 96.8% 97.7% 78.6%

17. Unit Capacity Factor (Using Design MWe) 96.5% 97.1% 76.3%

l 1 11 . Urit Forced Outage Rate 0.0% 2.1% 4.9%

10. f . iowns Scheduled Over Next 6 Months (Type, Date, and Duration of each)- .

Refuel VIII outage is scheduled to begin approximately March 1, 1996.

20. If Shut Down at End of Report Period, Estimate Date of Startup: N/A Wolf Creek Generating Station Monthly Operating Report September, 1995 Page 3 of 6

Attachmant to WO 95-0152 AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-482 WOLF CREEK GENERATING STATION

• WOLF CREEK NUCLEAR OPERATING CORPORATION DATE 10-5-95 TELEPHONE 316-364-8831 MONTH September, 1995 DAY AVERAGE DAILY POWER LEVEL DAY AVER 7.GE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 1157 17 1130 2 1164 18 901 3 1165 19 899 4 1165 20 849 5 1165 21 1059 6 1168 22 1139 7 1161 23 989 8 1174 24 1176 9 1176 25 1177

. 10 1175 26 1171 11 1175 27 1175 12 1176 28 1162 d

13 1173 29 1170 i 14 1163 30 1183 15 1170 31 N/A 16 1175 Wolf Creek Generating Station

] Monthly Operating Report September, 1995 Page 4 of 6

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Attachment to WO 95-0152 I

UNIT SHUTDOWN AND POWER REDUCTIONS .

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L DOCKET NO. 50-492,- ~

l WOLF CREEK GENERATING STATION WOLF CREEK NUCLEAR OPERATING CORPORATION DATE 10-5-95 TELEPHONE 316-364-8831 Type ' METHOD OF SHUTTING  ;

F: FORCED DURAT' N REASON DOWN THE REACTOR CORRECTIVE ACTIONS / COMMENTS No Date S: SCHEDULED (Hou;u) (1) OR REDUCING POWER (2) 1- 9/18/95 S 64.5 B 5 MAINTENANCE 2 9/22/95 S 16 B 5 MAINTENANCE t

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SUMMARY

The unit operated at or near 100% power, Mode 1, from September 1, 1995, through September 17, 1995, at 1200 when power was reduced at approximately 1.3% per hour for the scheduled outage of the Benton Line. On September 18, 1995, at 0405, the unit stabilized at 78% power, 948 MWe,  ;

On September 20, 1995, at 1329, the Benton Line was restored to service, and at 1427, the unit commenced power increase at 3% per hour from 947.MWe. ,

The unit experienced load loss caused by Turbine control irregularities during power increase, and at 1543, the unit stabilized at 760 MWe, Following ,

unit maintenance on Turbine Controls, at 2030 power was increased at 3% per hour. On September 21, 1995, at 1800, the unit stabilized at 100%

power. On September 22, 1995, at 2003, the unit began power reduction at 34 per hour for additional Turbine control maintenance. On September 23, }

1995, at 0558, the unit stabilized at 75% power. Maintenance was completed,.and on September 23, at 1108, power was increased at 3% per hour. On I September 23, 1995, at 2222,.the unit stabilized at 100% power, and maintained power through the remainder of September.  !

1) REASON: A: EQUIPMENT FAILURE (EXPLAIN) E: OPERATOR TRAINING AND LICENSE EXAMINATION (2) METHOD: 1. MANUAL i i

B: MAINTENANCE OR TEST F: ADMINISTRATIVE 2. MANUAL SCRAM  ;

C: REFUELING G: OPERATIONAL ERROR (EXPLAIN) 3. AUTOMATIC SCRAM l 1 D: REGULATORY RESTRICTION H: OTHER (EXPLAIN) 4. CONTINUED  !

5. REDUCED LOAD

9. OTHER  !

i Wolf Creek Generating Station Monthly Operating Report September, 1995

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.Atta' chm,ent to WO 95-0152 9

WOLF CREEK NUCLEAR OPERATING CORPORATION WOLF CREEK GENERATING STATION UNIT NO. 1.

MONTH September, 1995 1

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 TIME EVENT 9/18/95 0405 Maintenance 9/23/95 0588 Maintenance d

a Wolf Creek Generating Station Monthly Operating Report September, 1995 i

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