ML20079J148

Monthly Operating Rept for Sept 1991 for VC Summer Nuclear Station

ML20079J148
Person / Time
Site:	Summer
Issue date:	09/30/1991
From:	Haltiwanger J, Skolds J SOUTH CAROLINA ELECTRIC & GAS CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9110150272
Download: ML20079J148 (5)

Text

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. South Carolina Electric & Gas Comptny tn 6

-* P.O. Box 88 Vice President Jenkir.sville. SC 29065 Nuclear Operations (803) 3454040 SCE&G

~~~

OCT 10 891 Document Control Desk U. S. Nuclear Regulatory Commission 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 SEPTEMBER MONTHLY OPERATING REPORT Enclosed is the September 1991 Monthly Opercting 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 questinns, please call me at yo'ir convenience.

Very truly yours, 7&a John L. Skolds

/

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NRC Resident Inspector File (818.03-1)

J. B. Knotts Jr.

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Director, Office of Resource Management September Monthly Operating Report Page 1 ATTACHMENT I AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50/395 UNIT V. C. SUMMER I DATE 10/01/91 COMPLETED BY J. W. HALTIWANGER TELEPHONE (803) 345-4297 SEPTEMBER 1991 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

1. 878 17, 807

2. 879 18, 783

3. 880 19. 792

4. 879 20. 739

5. 880 21. -33

6. 879 22. -28

7. 876 23. -18

8. 878 24. -12

9. 880 25. -9

10. 881 26. -8

11. 878 27. -9

12. 866 28. -8

13. 859 29. -8

14. 852 30. -8 I 3 i

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Director Office of Resource Management September Monthly Operat'ng Report Page 2 ATTACHMENT II OPERATING DATA REPORT DOCKET NO. 50/395 UNIT V. C. SUMMER 1 DATE 10/01/91 COMPLETED BY J. W. HALTlWANGER TELEPHONE (803) 345-4297 OPERATING STATUS

1. Reporting Period: September 1991 Gross Hours in Reporting Period: 720

2. Currently Authorized Power Level (MWt): 2775 Max. Depend. Capacity (MWe-Net): 885 Design Electrical Rating (MWe-Net): 900

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

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

5. Number of Hours Reactor Critical 482.2 6147.1 53506.2

6. Reactor Reserve Shutdown Hours 0.0 0.0 0.0

7. Hours Generator on Line 481.1 6117.1 52539.1 _

8. Unit Reserve Shutdown Hours 0.0 0.0 0.0

9. Gross Thermal Energy Generated (MWH) 1274200 14576543 136248023

10. Gross Electrical Energy (MVH) 427220 4852110 45108969

11. Net Electrical Energy Generated (MWH) 405753 4618158 42824989

12. Reactor Service factor 67.0 93.8 78.8

13. Reactor Availability Factor 67.0 93.8 78.8

14. Unit Service Factor 66.8 93.4 77.4

15. Unit Availability Factor 66.8 93.4 77.4

16. Unit Capacity Factor (Using MDC) 63.7 79.7 71.2

17. Unit Capacity Factor (Design MWe) 62.6 78.3 70.1

18. Unit Forced Outage Rate 0.0 0.0 6.8

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

REFUELING, 09/21/91, 60 DAYS

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

11/20/91

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

Director, Office of Resource Munagement September Monthly Operating Report Page 3 ATTACHMENT III UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET N0. .50/395 UNIT V. C. SUMMER I DATE 10/01/91 COMPLETED BY J. W. HALTIWANGER TELEPHONE (803) 345-4297 SEPTEMBER 1991 N0. DATE TYPE DURATION REASON METHOD CORRECTIVE ACTION / COMMENTS 4 910921 S 238.9 C 1 REFUELING OUTAGE FOR 60 DAYS 1.0 REASON A: Equipment Failure B. Maintenance or Test C Refueling D:Reguietory Restriction E: Operator Training and Lxense Examination F: Administrative G: Operational Error H:Other (E mplain) 2.0 METHOD 1; Manual 2: Manual $(ram 3: Automat:( Scram 4: Continuation (Use initial Date)

5. Power Rer.tuction (Duration 0 0) 9 Other(Explairi)

Director, Office of Resource Management September Monthly Operating Report Page 4-ATTACHMENT IV NARRATIVE

SUMMARY

OF 0PERATING EXPERIENCE DOCKET N0. _

50/395 UNIT V. C. SUMMER I DATE 10/01/91 COMPLETED BY J. W. HALTIWANGER TELEPHONE (803) 345-4297 SEPTEMBER 1991 The Virgil C. Summer Nuclear Station operated at approximately 99% power for

!the first-11 days of the month. On September 7, the plant began a power coastdown which continued until shutdown for refueling on September 21.

On .eptember 21, the generator was taken offline at 0103 hours0.00119 days <br />0.0286 hours <br />1.703042e-4 weeks <br />3.91915e-5 months <br /> and the reactor was subcritical (Mode 3)'at 0212 hours0.00245 days <br />0.0589 hours <br />3.505291e-4 weeks <br />8.0666e-5 months <br />.

The refueling shutdown is scheduled for 60 days with -startup planned for November 20, 1991.

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