ML20150C357

Monthly Operating Rept for Feb 1988

ML20150C357
Person / Time
Site:	Summer
Issue date:	02/29/1988
From:	Haltiwanger J, Nauman D SOUTH CAROLINA ELECTRIC & GAS CO.
To:	Barry L NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
NUDOCS 8803180186
Download: ML20150C357 (5)

Text

Document Control Desk February Monthly Operating Report Page 1 ATTACHMENT I AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50/395 UNIT V. C. SUMMER I DATE 03/01/88 COMPLETED BY J. W. HALTIWANGER TELEPHONE (803) 345-4297 FEBRUARY 1988 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1.

892 17.

-34 2.

893 18.

25 3.

888 19.

617 4.

882 20.

886 5.

890 21, 890 6.

888 22.

890 7.-

891 23.

890 8.

891 24.

889 9.

890 25.

889 10.

890 26.

888 11.

890 27.

899 12.

890 28.

889 13.

891 29.

888 14.

892 15.

891 16.

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o Documant Control Desk February Monthly Operating Report Page 2 ATTACHMENT II OPERATING DATA REPORT DOCKET N0.

50/395 UNIT V. C. SUMMER I DATE 03/01/88 COMPLETED BY J. W. HALTIWANGER TELEPHONE (803) 345-4297 OPERATING STATUS

1. Reporting Period:

February 1988 Gross Hours in Reporting Period:

696

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 661.1 1405.1 28,074.0

6. Reactor Reserve Shutdown Hours 0.0 0.0 0.0

7. Hours Generator on Line 652.9 1396.9 27,525.0

8. Unit Reserve Shutdown Hours 0.0 0.0 0.0

9. Gross Thermal Energy Generated (MWH) 1,781,887 3,844,461 72,628,141

10. Gross Electrical Energy (MWH) 594,940 1,285,300 24,114,749

11. Net Electrical Energy Generated (MWH) 569,199 1,231,958 22,967,132

12. Reactor Service Factor 95.0 97.6 76.9

13. Reactor Availability Factor 95.0 97.6 76.9

14. Unit Service Factor 93.8 97.0 75.4

15. Unit Availability Factor 93.8 97.0 75.4

16. Unit Capacity Factor (Using HDC) 92.4 96.7 71.1

17. Unit Capacity Factor (Design MWe) 90.9 95.1 69.9 t

18. Unit Forced Outage Rate 6.2 3.0 6.3

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 l

21. Units in Test Status (Prior to Commercial Operation):

N/A l

i I

e Document Control Desk February Monthly Operating Report Page 3 ATTACHMENT III UNIT SHUTDOWNS AND POWER REOUCTIONS DOCKET NO.

50/395 UNIT V. C. SUMMER I DATE 03/01/88 COMPLETED BY J. W. HALTIWANGER TELEPHONE (803) 345-4237 February 1988 Method of TYPE Shutting F or S Duration Down the Corrective Actions /

No.

Date Reason Forced or (Hours)

Reactor or Comments Scheduled Reducing Power 1

880216 F

43.1 A

3 Tighten loose connections on meter test card of power range nuclear instrument channel.

l s.

1 l

Document Control Desk

. February Monthly Operating Report Page 4 ATTACHMENT IV j

NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE DOCKET N0.

50/395 b3/

8 COMPLETED BY J. W. HALTIWANGER l

TELEPHONE (803) 345-4297 FEBRUARY 1988 V. C. Summer Nuclear Station, Unit 1, operated at approximately 100 percent power for the first 15 days of February 1988.

On February 14, 1988, a problem with the pressurizer master pressure controller i

caused a pressurizer power operated relief valve (PORV) and pressurizer spray valve to open resulting in a brief system pressure drop. The magnitude of the pressure drop was impacted only by the actuation of-the pressurizer spray valve since the associated block valve for the affected PORV had been previously closed.

On February 16, at 2331, a reactor trip occurred from 100% power. One excore power range channel nuclear instrument channel had been removed from service due to a failed surveillance test. As required by Technical Specifications, the remaining three channels were being read to verify that the Quadrant Power Tilt Ratio was within its limit.

A loose connection on the meter test card on one of these channels caused a momentary loss of signal to that channel resulting in a negative rate reactor trip signal being initiated. The plant was back on line February 18 at 1835 and 100% power was obtained at 2030 on February 19.

On February 29, 1988, Summer Station was operating at approximately 100% power.

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March 11, 1988 Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555 ATTH: Mr. Learned W. Barry

SUBJECT:

Virgil C. Summer Nuclear Station Docket No. 50/395 Operating License No. NPF-12 February Monthly Operating Report Gentlemen:

Please find enclosed the February 1988 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, h

• ~

D. A. Nauman AMM:JWH: DAN / led Attachments pc:

J. G. Connelly, Jr./0. W. Dixon, Jr./T. C. Nichols, Jr.

E. C. Roberts G. O. Percival

0. S. bradham R. L. Prevatte W. A. Williams, Jr.

J. B. Knotts, Jr.

T. E. Murley INP0 Records Center J. Nelson Grace ANI Library General Managers L. N. Carter l

C. A. Price R. E. Rainear R. B. Clary Marsh & McLennan W. R. Higgins NSRC K. E. Nodland RTS R. M. Campbell, Jr.

NPCF J. C. Snelson File dN 4

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