ML20093F105

Monthly Operating Rept for Aug 1984

ML20093F105
Person / Time
Site:	Summer
Issue date:	08/31/1984
From:	Dixon O, Loignon G SOUTH CAROLINA ELECTRIC & GAS CO.
To:	Barry L NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
NUDOCS 8410120390
Download: ML20093F105 (5)

Text

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'e, Direc' or, Of fice of Resource Finagement t

August Monthly Operating Report September 13, 1984 ATTACHMENT I AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50/395 UNIT V.

C.

SUMMER I DATE -09/10/84 COMPLETED BY G.

A.

Loignon TELEPHONE (803) 345-5209 MONTH AUGUST 1984 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1.

862 17.

-6 2.

875 18.

321 3.

880 19.

682 4.

881 20.

595 5.

885 21.

821 6.

888 22.

849 7.

882 23.

848 8.

884 24.

848 9.

885 25.

839 10.

884 26, 838 11.

885 27.

836 12, 883 28.

817 13.

882 29.

802 14.

881 30.

799 15.

882 31.

788 16.

604 i

8410120390 840831 PDR ADOCK 05000395 TE 14 R

PDR

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. Director, Office of Resource Managment August 2nthly Operating Report -

Page 2 September 13, 1984 A'IDCIMENE II OPERATING IRTA REPCRT DOCITf NO.

50/395 UNIT V. C. SLMER I DATE 09/10/84 COMPIETED BY G. A. Icignon TELEPHONE (803) 345-5209 OPERATING STA'IUS

1. Reporting Period:

AUGUST 1984 Gross Hours in Reporting Period: 744

2. Currently Authorized Power Ievel (MWt):

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

885 Design Electrical Rating (MWe-Net):

900

3. Power Ievel to which restricted (If Any)(Mie-Net): N/A

4. Reasons for Restrictions (If Any): N/A

'IHIS M)tml YR 'IO DATE CEMJIATIVE

5. Nunber of Hours Reactor Was Critimi 726.4 4,583.6 4,583.6

6. Reactor Reserve Shutdown Hours 0

0 0

7. Hours Generator on Line 718.4 4,425.8 4,425.8

8. Unit Reserve Shutdom Hours 0

0 0

9. Gross 'Ihermal Ehergy Generated (M9H) 1,844,750 11,471,650 11,471,650

10. Gross Electrical Energy Generated (M) 614,320 3,816,889 3,816,889

11. Net Electrical Ehergy Generated (M) 587,932 3,634,532 3,634,532

12. Reactor Service Factor 97.6 78.3 78.3

13. Reactor Availability Factor 97.6 78.3 78.3

14. Unit Service Factor 96.6 75.6 75.6

15. Unit Availability Factor 96.6 75.6 75.6

16. Unit Capacity Factor (Using IOC) 89.3 70.1 70.1

17. Unit Capacity Factor (Using Design MWe) 87.8 69.0 69.0

18. Unit Forced Outage Rate 3.4 12.7 12.7

19. Shutdoms Scheduled Over Next 6 2nths (Type, Date, and Duration of Each):

Refueling, Septaber 28, 1984, 60 Days.

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

21. Units in 'Ibst Status (Prior to Cbenerical Operation):

EDRECAST ACHIEVED j

Initial Criticality N/A 10-22-82 Initial Electricity N/A 11-16-82 Cannercial Operation N/A 01-01-84

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-Director, Office of Resource Management

- August Monthly Operating. Report

..Page.3-

. September 13, 1984

' ATTACHMENT III-UNIT SHUTDOWNS AND-POWER REDUCTIONS DOCKET NO.~

50/395 UNIT V.

C.

SUMMER I DATE 09/10/84 4

~ COMPLETED BY G. A.

Loignon TELEPHONE

'(803) 345-5209 i

(1)

METHOD OF (2)

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

NO.

DATE S: SCHEDULED (HOURS)

REASON REDUCING POWER COMMENTS 9

840816 F

25.6 A

1

9) Replace insulator in isophase bus duct.

10 840819 F

0.0 A

5

10) Isophase bus duct

. heating,' reduced-i power, determined condition accept-able, increased power.

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Director, Of fice of Resource Management August Monthly Operating Report Page 4 September 13, 1984 ATTACHMENT IV NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE The Virgil C.

Summer Nuclear Station, Unit No. 1, operated at approximately 100% power through August 15, 1984.

About August 12, 1984, the first cycle reached the point where 100%

power could not be maintained at normal operating conditions.

The RCS temperature was allowed to drop approximately 5 degrees, as required, to maintain 100% power.

On August 16, 1984, power was reduced and the generator taken off line at 1813 hours0.021 days <br />0.504 hours <br />0.003 weeks <br />6.898465e-4 months <br /> to allow repairs to the generator isophase bus duct.

The plant entered Mode 3 at 1900 hours0.022 days <br />0.528 hours <br />0.00314 weeks <br />7.2295e-4 months <br /> on the August 16.

The Plant entered Mode 2 at 1335 hours0.0155 days <br />0.371 hours <br />0.00221 weeks <br />5.079675e-4 months <br /> and the generator was placed on line at 1951 hours0.0226 days <br />0.542 hours <br />0.00323 weeks <br />7.423555e-4 months <br /> on August 17.

On August 19, 1984, at 0946 hours0.0109 days <br />0.263 hours <br />0.00156 weeks <br />3.59953e-4 months <br />, power was reduced because of high temperatures in the isophase bus duct.

After determining that the temperatures were acceptable, power was increased to approximately 97% on August 21.

Again, Reactor Coolant System (RCS) average temperature was allowed to drop to maintain power at approximately 95%.

On August 24, 1984, RCS average temperature was stabilized and the plant began a power coastdown.

By August 31, the reactor power had decreased to 87%.

On August 31, 1984, the plant was continuing power coastdown.

Initial refueling outage is scheduled to begin September 28, 1984.

l l

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k' SOUTH CAROLINA ELECTRIC & GAS COMPANY POST OFFICE 764.

' COLUMelA, south CAnoWNA 29218 O. W. Demon. Jn.

VICE PassiosNT NUCLEan OremarsoNs September 13, 1984 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 August Monthly Operating Report

Dear Mr. Barry:

Please find enclosed the August 1984 Monthly Operating Report for

'the Virgil C. Summer Nuclear Station Unit No. 1.

This submittal is made in accordance with the requirements of Technical

-Specification 6.9.1.10.

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

Very trul

yours, J

i O. W.

ixon, CJM: GAL:OWD/lcd Attachment cc:

V.

C.

Summer C.

L. Ligon (NSRC)

T.

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

K.

E. Nodland E.

H. Crews, Jr.

R. A.

Stough E.

C.

Roberts G.

Percival W. A. Williams, Jr.

C. W. Hehl H.

R. Denton J.

B.

Knotts, Jr.

i J. P. O' Reilly INPO Records Center Group Managers ANI Library D. A.

Nauman L.

N.

Carter i-O.

S. Bradham NPCF C.

A.

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