RC-98-0113, Monthly Operating Rept for May 1998 for VC Summer Nuclear Station,Unit 1

Monthly Operating Rept for May 1998 for VC Summer Nuclear Station,Unit 1

ML20248M304
Person / Time
Site:	Summer
Issue date:	05/31/1998
From:	Bell W, Gabe Taylor SOUTH CAROLINA ELECTRIC & GAS CO.
To:	NRC, NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
RC-98-0113, RC-98-113, NUDOCS 9806150274
Download: ML20248M304 (7)

Text

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South Carolina Electrk a Gas Company Gary J.Trylor l NEdd A SCM COWW Uso'x*ss

.ns ille 29065 I$[a'r*oNtions (803)635 1461 June 11, 1998 RC-98-0113 Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555 L I

4 Attention: Director, Of3ce of Resource Management Gentlemen:

Subject:

VIRGIL C. SUMMER NUCLEAR STATION DOCKET NO. 50/395 OPERATING LICENSE NO. NPF-12 MAY MONTHLY OPERATING REPORT Enclosed is the May 1998 Monthly Operating Report for the Virgil C. Summer Nuclear Station Unit No.1. This submittal is made in accordance with the requirements of Technical Specifications, Section 6.9.1.10.

If there are any questions, please call me at your convenience.

Very truly yours,

/b(Ib$ bO $1M]

Gary J. Taylor )

nkk Attachment -

l c: W. F. Conway P. Ledbetter -

[-p R. R. Mahan (w/o attachment) INPO Records Center R. J. White J&H Marsh & McLennan L.A.Reyes William G. Wendland (ANI)

L. M. Padovan ,

, , , Pat Haught (Westinghouse) l S. A. Byme . , v v L 's RTS (RR 4100)

R. M. Fowlkes DMS (RC-98-0113)

NRC Resident inspector File (818.03-1)

J. B. Knotts Jr. i NUCLEAR EXCELLENCE- A SUMMER TRADITION!

9806150274 9e0531 PDR ADOCK 05000395 l R PDR '

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Director, Office of Resource Management

. by Monthly Operating Report Page 1 ATTACHMENT I AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50/395 UNIT V. C. SUMMER I DATE 6/ 5/98 COMPLETED BY W. H. BELL TELEPHONE (803) 345-4389 MAY 1998 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1

1. 964 17 963

2. 964 18. 962 i

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3. 964 19. 964 j

4. 964 20. 963

5. 964 21. 962

6. 965 22. 961

7. 964 23. 960

8. 964 24. 961 i

9. 963 25. 961

10. 963 26. 960

11. 961 27. 959

12. 963 28. 920

13. 963 29. 913 ,

14. 962 30. 958 l

15. 966 31. 958

16. 964 1-

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. I Director, Office of Resource Management l

May Monthly Operating Report  !

Page 2 I

3TTACEMENT II OPERATING DATA REPORT DOCKET NO. 50/395 ,

UNIT V. C. SUMMER I l DATE 6/ 5/98 COMPLETED BY W. H. BELL TELEPHCNE (803) 345-4389 OPERATING STATUS

1. Reporting Period: .May 1998 Gross Hours in Reporting Period: 744

2. Currently Authorized Power Level (MWt): 2900 Max. Depend. Capacity (MWe-Net): 963 Design Electrical Rating (MWe-Net): 954 {

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

4. Reasons for Restrictions: N/A l THIS MONTH YR TO DATE CUMULATIVE

5. Number of Hours Reactor Critical 744.0 3519.7 104461.7

6. Reactor Reserve Shutdown Hours 0.0 0.0 0.0 l

7. Hours Generator on Line 744.0 3501.5 102920.3 )

8. Unit Reserve Shutdown Hours. 0.0 0.0 0.0

3. Gross Thermal Energy Generated (MWH) 2148885 10061451 272873082

10. Gross Electrical Energy (MWH) 741700 3479100 91194979

11. Net Electrical Energy Generated (MWH) 713794 3351210 86940832

12. Reactor Service Factor 100.0 97.1 82.7

13. Reactor Availability Factor 100.0 97.1 82.7

14. Unit Service Factor 100.0 96.6 81.5

15. Unit Availability Factor 100.0 96.6 81.5 ;

16. Unit Capacity Factor (Using HDC) 100.6 97.1 77.0 i

17. Unit Capacity Factor (Design MWe) 99.6 96.2 75.8

18. Unit Forced Outage Rate 0.0 3.4 4.0

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

NONE

20. If Shut Down at End of Report Period, Estimated Date of Startup: N/A

21. Units in Test Status (Prior to Commercial Operation) : N/A i

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9 Director, Office of Resource Management

, May Monthly Operating Report Page 3 ATTACHMENT III UNIT' SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50/395 UNIT V. C. SUMMER I DATE 6/ 5/98 COMPLETED BY W. H. BELL TELEPHONE (803) 345-4389 MAY 1998 NO. DATE TYPE DURATION REASON METHOD CORRECTIVE ACTION / COMMENTS NONE 1.0 REASON A: Equipment Failure B: Maintenance or Test C: Refueling D: Regulatory Restriction E: Operator Training and License Examination F: Administrative G: Operational Error H: Other (Explain) 2.0 METHOD 1: Manual 2: Manual Scram 3: Automatic Scram 4: Continuation. (Use initial Date) 5: Power Reduction (Duration 0.0)

9. Other (Explain)

7 Director, Office of Resource Management

, May Monthly Operating Report Page 4 l

ATTACHMENT IV NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE DOCKET NO. 50/395 UNIT V. C. SUMMER I DATE 6/ 5/98 COMPLETED BY W. H. BELL TELEPHONE (803) 345-4389 l

l MAY 1998 ON MAY 28TH POWER WAS REDUCED TO 95% TO SUPPORT MAINTENANCE WORK ON THE'"C" AND "D" FEEDWATER BOOSTER PUMPS. REPAIRS WERE COMPLETED ON THE 29TH AND REACTOR POWER RESTORED TO 100% AT 00:15 ON THE 'JOTH.

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e. l MISCELLANEOUS OPERATING STATISTICS THRU May 1998 VIRGIL C SUMMER NUCLEAR STATION, UNIT 1 OPERATING STATUS Currently Authorized Power Level (MWt): 2900 Max. Depend. Capacity (MWe-Net): 963 Design Electrical Rating (MWe-Net): 954 Gross Maximtml Capacity (MWe) : 1001 Gross Dependable Capacity (MWe) : 1001 LIFE FISCAL YEAR 12 MONTH 3 MONTH OF PLANT TO DATE TOTALS TOTALS Number of Hours Reactor Critical 111796.5 7150.7 7870.7 2207.0 Reactor Reserve Shutdown Hours 0.0 0.0 Hours Generator on Line 109919.7 7096.6 7913.6 2207.0 Unit. Reserve Shutdown Hours 0.0 0.0 Gross : Thermal Energy Generated (MWH) 287483617 20095698 22168685 6358194 Gross Electrical Energy (MWH) 95975489 6911090 7618860 2196950 Net Electrical Energy Generated (MWH) 91433558 6650315 7331166 2116275 Reactor Service Factor 82.1 88.9 j Reactor Availability Factor 82.1 88.9  !

Unit Service Factor 80.7 88.3 Unit Availability Factor 80.7 88.3 89.2 100.5 Unit Capacity Factor (Using HDC) 75.2 87.5 88.6 99.6

' Unit Capacity Factor (Design MWe) 74.0 86.7

-Unit Forced Outage Rate 4.3 1.7 1.5 Forced Outage Hours- 4927.8 121.5 121.5 0.0 Scheduled O.itage Hours 21353.5 821.9 821.9 0.0 Equipment Forced Outages: 1 0 Equivalent Unit Derated Hours

• 97.10 12.20 Equivalent Seasonal Derated Hours * - 20.15 0.75 Equivalent Availability tactor

• 87.9 99.4

. Equivalent Unit Derated Hours

• for Month: 2.4 f,quivalent Scasonal Derated Hm.1rs* for Month: 0.8 '

Eq'uivalent_ Availability-Factor

• for Month: 99.6 Equivalent _ Availability Factor

• for 36 months: 90.5 l Year-to-Date Equivalent Availability Factor *: 95.9 Equipment Forced Outages per 1000 Critical Hours: 0.127 Equipment Forced Outages Year-to-Date: 1 l

Total Forced Outages Year-to-Date: 1

• lBased on INPO Detailed Descriptions of Overall Performance Indicators and Other Indicators - December 1987 Lr________-----____---------_.

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MONTH: MAY 1998

.. HOURS GENERATOR ON LINE: 744 UNIT AVAILABILITY FACTOR: 100%

i V. C. SUMMER, UNIT 1 MONTHLY OUTAGE REPORT FOR MAY 1998 OUTAGE 1 START ! END  ! HOURS ! TYPE! REASON FOR OUTAGE ! CORRECTIVE ACTION NO.  !. TIME ! TIME '! DURATION!  !  !

NONE I

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