ML20024F067

Monthly Operating Rept for Jul 1983

ML20024F067
Person / Time
Site:	Summer
Issue date:	08/10/1983
From:	Dixon O, Gabe Taylor SOUTH CAROLINA ELECTRIC & GAS CO.
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
NUDOCS 8309080177
Download: ML20024F067 (5)

Text

SOUTH CAROLINA ELECTRIC & GAS COMPANY POST OFFICE 764 COLUMatA south CAROUNA 29218 O. W. D;xoN, JR.

Vics PatstDENT NUCLEAR OpEnATIONS August 10, 1983 Director, Office of Resource Management U.

S. Nuclear Regulatory Commission MNBB 7602 Washington, DC 20555 ATTN:

Mr. Learned W. Barry

SUBJECT:

Virgil C.

Summer Nuclear Station Docket No. 50/395 Operating License No. NPF-12 Monthly Operating Report

Dear Mr. Barry:

Please find enclosed the July 1983 Monthly Operating Report for Virgil C. Summer Nuclear Station Unit No. 1 as required by Technical Specification 6.9.1.10.

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

Very trul yours i

t 0.

W. D xon, r.

i GJT:0WD:mac Attachment cc:

V.

C.

Summer A.

R.

Koon T.

C. Nichols, Jr./0. W. Dixon, Jr.

C. L.

Ligon (NSRC)

E.

C.

Roberts G. J.

Braddick H. N.

Cyrus J. C.

Miller H. R.

Denton J. L.

Skolds J.

P. O'Reilly J.

B.

Knotts, Jr.

Group / General Managers INPO Records Center 0.

S. Bradham NPCF R.

B.

Clary File (Lic./Eng.)

C.

A.

Price 1

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Director, Office of Resource Management Monthly Operating Report Page 2 August 10, 1982 ATTACHMENT I AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50/395 UNIT V. C.

SUMMER I DATE 08/10/83 COMPLETED BY G.J. Taylor TELEPHONE (803) 345-5209 MONTH JULY 1983 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1.

868 17.

871 2.

849 18.

878 3.

809 19 877 4.

0 20.

872 5.

27 21.

853 6.

536 22.

866 7.

844 23.

867 8.

835 24.

885 9.

839 25.

888 10.-

839 26.

886 11.

839 27.

885-12.

831 28.

887 13.

865 29 882 14.

884 30.

882 15.

885 31.

882 16.

877

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- + -

Director, Office'67 Resource Management Monthly Operating Report Page 3 August 10, 1983-ATTACHMENT II OPERATING DATA REPORT DOCKET NO.

50/395 UNIT V. C.

SUMMER I DATE 08/10/83 COMPLETED BY G. J.

Taylor TELEPHONE (803) 345-5209 OPERATING STATUS

1. Reporting Period:

JULY 1983 Gross Hours in Reporting feriod:

744

2. Currently Authorized Power Level (MWt):

2775 Max. Depend. Capacity (MWe-Net):

N/A Design Electrical Rating (MWe-Net):

900

3. Power Level to which restricted (If Any)(MWe-Net):

N/A

4. Reasons for Restrictions (If Any):

THIS MONTH YR TO DATE CUMULATIVE

5. Number of Hours Reactor Was Critical 708.7 3430.6 4737.4

6. Reactor Reserve Shutdown Hours 0

0 0

7. Hours Generator on'Line 704.7 3330.5 4099 6

8. Unit Reserve Shutdown Hours 0

0 0

9.. Gross. Thermal Energy Generated (MWH) 1,863,508 6,188,972 6,984,845

10. Gross Electrical Energy Generated (MWH) 620,350 2,019,162 2,235,399

11. Net Electrical Energy Generated (MWH) 595,915 1,904,409 2,095,605

12. Reactor Service Factor N/A N/A N/A

13. Reactor Availability Factor N/A N/A N/A 14.-Unit Service Factor N/A N/A N/A f

'15. Unit Availability Factor N/A N/A N/A

16. Unit Capacity Factor (Using MDC)

N/A N/A N/A

17. Unit Capacity Factor (Using Design MWe)

N/A N/A N/A

18. Unit Forced Outage Rate N/A N/A N/A

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

Steam Generator Eddy Current, 10/15/83, 10 days.

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

N/A

21. Units in Test Status (Frior to Commerical Operation):

FORECAST ACHIEVED Initial Criticality 10-20-82 10-22-82 Initial Electricity 11-17-62 11-16-62 Commercial Operation

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Director, Office of Resource Management Monthly Operating Report Page 4 August 10, 1983 ATTACHMENT III UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO..

50/395 UNIT V. C.

SUMMER I DATE 06-10-63 COMPLETED BY G.J. Taylor TELEPHONE (603) 345-5209 (1)

METHOD OF (2)

TYPE SHUTTING DOWN F: FORCED DURATION THE REACTOR OR CORRECTIVE ACTIONS /

NO.

DATE S: SCHEDULED (HOURS) REASON REDUCING POWER COMMENTS 12 830703 F

35.3 H

3

12) Lightning surge caused Negative Rate Trip from 95% power.

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Director, Office of Resource Management Monthly Operating Report Page 5 August 10, 1983 ATTACHMENT IV NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE Virgil 0. - Surmner Nuclear Station, Unit No. 1, continued operation at power levels up to 100% power during July 1983.

On July 3,1983, at 2315 hours0.0268 days <br />0.643 hours <br />0.00383 weeks <br />8.808575e-4 months <br />, lightning caused a power surge resulting in a negative rate trip from 95% power.

On July 11, 1983, at approximately 0930 hours0.0108 days <br />0.258 hours <br />0.00154 weeks <br />3.53865e-4 months <br />, a Pressurizer Power Operated Relief Valve (PORV), POV-445A, actuated twice.

Apparent cause was Maintenance performing work on Subcooling Monitor "A",

which inadvertently armed the Cold Overpressure Protection System and actuated the PORV.

The PORV was isolated by closing its associated block valve while cause was determined.

Pressurizer pressure decreased approximately 15 psig at each actuation.

The Nuclear Steam Supply System (NSSS) 100 Hour Acceptance Test, POT-21, was successfully completed on July 28, 1983.

On July 31, 1983, operation was continuing at approximately 100%

power.

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