RC-97-0008, Monthly Operating Rept for Dec 1997 for Virgil C Summer Nuclear Station

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Monthly Operating Rept for Dec 1997 for Virgil C Summer Nuclear Station
ML20198T321
Person / Time
Site: Summer South Carolina Electric & Gas Company icon.png
Issue date: 12/31/1997
From: Bell W, Gabe Taylor
SOUTH CAROLINA ELECTRIC & GAS CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
RC-97-0008, RC-97-8, NUDOCS 9801270029
Download: ML20198T321 (7)


Text

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. I a l6ne tioctric & Gee Ct.mpany J.T or i Jenkinsvitie. Sc 29065 Nuc%ar Operations (803) 345-4344 t

'A M AMICr est  !

January 15, 1998 i Re-98-0008 i Document Control Desk .

U. S. Nuclear Regulatory Commission L Washington, DC 20555 Attention: Director, Office of Resource Management Gentlemen:

Subject:

VIRGIL C. SUMMER NUCLEAR STATION DOCKET NO. 50/395 OPERATING LICENSE NO. NPF 12 DECEMBER MONTHLY OPERATING REPORT ,

Enclosed is the December 1997 Monthly Operating Report for the Virgil C. Summer Nuclear Station Unit No.1. This submittalis 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 Ga ylor nkk Attachment c: W. F. Conway P. Ledbetter R. R. Mahan (w/o attachment) INPO Records Center R. J. White Marsh & McLennan L. A. Reyes William G. Wendland (ANI)

L. M. Padovan Pat Haught (Westinghouse)

S. A. Byrne RTS (MON 2000)

R. M. Fowlkes . DMS (RC 98 0008)

NRC Resident inspector ' File (818.031)

J. B. Knotts Jr.

35  !!! ,! ,l !!!!l0lll lll NUCLEAR EXCELLENCE A SUMMER TRADITIONI l'

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Director, Office of Resource Management l

. December Monthly Operating Report j Page 1 I

ATTACHMENT I AVERAGE DAILY UNIT POWER LEVEL DOCKET HO. 50/395 UNIT V. C. SUMMER I  ;

DATE 1/ 8/98 COMPLETED BY W. H. BELL ,

TELEPHONE (803) 345-4309 ,

DECEMBER 1997 i

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL 1

-(MWe-Het) (MWe-Net)

1. 967 17, 968
2. 968 18. 968  !

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3. 918 19. 968 4, 863 20. 968 i
5. 728 21. 969
6. 387 22. 969 i
7. 774 23. 964  ;
8. 952 24. 968
9. 966 25. 969  ;

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10. 969 26. 969
11. - 969 27. 968
12. 968 28, 968
13. 969 29. 967
14. 969- 30, 968 l 15, 968 31. 969
16. 969 t

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Director,>0ffice of Resource Management December Monthly Operating Report-Page 2 ATTACRMENT II OPERATING DATA REPORT DOCKET NO. 50/395 UNIT V. C. SUMMER 1 l DATE 1/ 8/98 '

COMPLETED BY W 11. BELL '

TELEPfl0NE (803) 345-4389 OPERATING STATUS

1. Reporting Period: December 1997 ,

Gross llours in Reporting Period: 744 i

2. Currently Authorized Power Level (MWt): 2900 i Max. Depend. Capacity (MWe-Net): 954 Design Electrical Rating (MWe-Nat): 963
3. Power Level to Which Restricty d? Any)(MWe-Net): N/A
4. Reasons for Restrictions: N/A r t

T!!I3 WONTil YR TO DATE CUMULATIVE

5. Number of flours Reactor Critical 744.0 7870.4 100942.0  !
6. Reactor Reserve Shutdown flours 0.0 0.0 0.0
7. Ilours Generator on Line 744.0 7806.7 99418.8
8. Unit Reserve Shutdown flours 0.0 0.0 0.0
9. Gross Thernal Energy Generated (MWH) 2079577 22100112 262811631
10. Gross Electrical Energy (MWil) 710450 7560230 87715879
11. Het Electrical Energy Generated (MWil) 691755 7267910 81589622
12. Reactor Service ? actor 100.0 89.8 82.2
13. Reactor Availability Factor 100.0 89.8 82.2
14. Unit Service Factor 100.0 89.1 81.0
15. Unit Availability Factor 100.0 89.1 81.0
16. Unit Capacity Factor (Using MDC) 97.5 87.5 76.3
17. Unit Capacity Factor (Design MWe) 96.6 86.7 75.1
18. Unit Forced Outage Rate 0.0 1.7 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 wn -

Director, Office of Resource Management

. December Monthly Operating Report  !

Page 3 {

t ATTACHMENT III 1 UNIT SHUTDOWNS AND POWER REDUCTIONS  ;

i DOCKET NO. 50/395 UNIT V. C. SUMMER I DATE 1/ 8/98 COMPLETED BY W. H. BELL TELEPHONE (803) 345-4389 DEFIMBER 1997 ,

NO. DATE TYPE DURATION REASON METHOD CORRECTIVE ACTION / COMMENTS

$ 971205 S 0.0 B 5 REPAIRED MFP "A & B" AND I REPAIRED CONDENSER TUBE LEAKS I

1.0 REASON At Equipment Failure Bt Maintenance or Test C: Refueling Di Regulatory Restriction El Operator Training and License Examination Ft Administrative  ;

G: Operational Error H Other (Explain) 2.0 METil0D 1 Manual 23 Manual Scram  ;

3: Automatic Scram 4: Continuation (Use initial Date) i 5: Power Reduction (Duration 0.0)  !

9. Other (Explain) i

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I Director, Office of Resource Management

. December Monthly Operating Report Page 4 ATTACRMENT IV NARRATIVE SUl44ARY OF OPERATING EXPERIENCE DOCKET NO. 50/395 UNIT V. C. SUl44ER I DATE 1/ 8/98 COMPLETED BY W. H. BELL TELEPHONE (803) 345-4309 DECEMBER 1997 i

A POWER REDUCTION BEGAN OH 12/3 TO PERFORM SEAL REPAIRS TO THE "A" AND "B" t MAIN FEEDWATER PUMPS. POWER WAS REDUCED TO 40% ON 12/6 TO ISOdTE ONE LOOP OF CONDENSER COOLING WATER IN ORDER TO SUPPORT CONDENSER LEAK DETECTION AND REPAIR. ALL REPAIRS WERE COMPLETED AND POWER WAS RESTORED TO 100% ON 12/8. THE PLANT OPERATED AT 100% FOR THE REST OF THE MONTH.

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HONTH DECEMBER 1997  ;

-t HOURS GENERATOR ON LINE 744 j UNIT AVAILABILITY FACTOR: 1004- i

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l V. C. SUMMER, UNIT 1 l t

MONTi!LY OUTV,4 REPORT FOR DECEMBER 1997

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I OUTAGE I START l F.ND - I  !!OURS ITYPE! REASON FOR OUTAGE ! CORRECTIVE ACTION NO. 1 TIME l- TIME IDURATION! l i i


l--------!--------l-------l----l------------------l---------------- i NONE i

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MISCELLANEOUS OPERATING STATISTICS THRU December 1997 VIRGIL C SUMMER NUCLEAR STATION, UNIT 1 OPERATING STATUS '

Currently Authorized Power Level (MWt): 2900 Hax. Depend. Capacity (MWe Net): 954 Design Electrical Rating (MWe-Net): 963 Gross Maximum Capacity (MWe): 992 Gross Dependable Capacity (MWe): 992 i LIFE FISCAL YEAR 12 MONTH 3 MONTH OF PLANT TO DATE TOTALS TOTALS humber of Hours Reactor Critical 108276.8 3631.0 7870.4 1423.0 Reactor Reserve Shutdown Hours 0.0 0.0 Hours Generator on Line 106418.2 3595.1 7806.7 1387.1 Unit Reserve Shutdown Hours 0.0 0.0 Gross Thermal Energy Generated (MWH) 277422166 10034247 22100112 3649861 Gross Electrical Energy (MWH) 92496389 3431990 7560230 1253620 Not Electrical Energy Generated (MWH) 88082348 3299105 7267910 1203068 Reactor Service f actor 81.7 82.2 Reactor Availability Factor #

81.7 82.2 Unit Service Factor 80.3 81.4 Unit Availability Factor 80.3 81.4 89.1 62.8 Unit Capacity Factor (Using MDC) 74.5 78.5 87.5 57.1 Unit Capacity Factor (Design MWe) 73.3 77.8 Unit Forced Outage Rate 4.3 0.0 1.7 Forced Outage Hours 4806.3 0.0 131.4 0.0 Scheduled Outage Hours 21353.5 821.9 821.9 821.9 Equipment Forced Outages: 3 0 Equivalent Unit Derated Hours

  • 244.78 58.60 Equivalent Seasonal Derated Hours
  • 20.15 0.15 Equivalent Availability Factor
  • B6.1 60.1 Equivalent Unit Derated Hours
  • for Month: 25.9 Equivalent Seasonal Derated Hours
  • for Month: 0.0 Equivalent Availability Factor
  • for Month: 96.5 Equivalent Availability Factor
  • for 36 months: 88.4 Year-to-Date Equivalent Availability Factor *: 86.1 Equipment Forced Outages per 1000 Critical Hours: 0.381 Equipment Forced Outages Year-to-Date: 3 Total Forced Outages Year-to-Date: 3
  • Based on IUPO Detailed Descriptions of Overall Performance Indicators and Other Indicators - December 1987

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