ML20005G767
| ML20005G767 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 12/31/1989 |
| From: | Bradham O, Haltiwanger J SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | Barry L NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9001230052 | |
| Download: ML20005G767 (5) | |
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South Caroline Doctric & Gas Company P.O. Box BB Vice Prmdtnt Jenkin:ville. SC 29X,5 Nucint Oper:tions b
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(803) 345404D SCE&G
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u January 12, 1990 j
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Document Control Desk U. S. Nuclear Regulatory Commission
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Washington, DC 20555
- Attention: Mr. Learned W. Barry
SUBJECT:
Virgil C. Summer Nuclear Station t
Docket No. 50/395
=l Operating License No. NPF-12 December Monthly Operating Report t
Gentlemen:
n Please find enclosed the December 1989 Monthly Operating Report for the Virgil C. Summer Nuclear Station Unit No'. 1.
This submittal is made in accordance with i
the requirements of Technical Specifications, Section 6.9.1.10.
If the.'e are any quettions, please call me at your convenience.
Very truly yours,
[
- 0. S. Bradham DCH/JWH/OSB: led Attachments.
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D. A. Nauman/0. W. Dixon, Jr./T. C. Nichols, Jr.
E. C. Roberts R. V. Tanner J. B. Knotts, Jr.
S. D. Ebneter J. W. Flitter J. J. Hayes, Jr.
INPO Records Center General Managers ANI Library C. A. Price Marsh & McLennan R. B. Clary NPCF K. E. Nodland NSRC J. C. Snelson RTS RG890002)
R. L. Prevatte File 818.03-1) 9001230052 891231
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L PDR ADOCK 05000395 R
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t Document Control Desk i'
December Monthly Operating Report Page 1
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ATTACHMENT I f
AVERAGE DAILY UNIT POWER LEVEL t-DOCKET NO.: 50/395 UNIT:
V. C. SUMMER I DATE: 01/02/90 COMPLETED BY:
J. W. HALTIWANGER TELEPHONE:
(803) 345-4297 DECEMBER 1989 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Net) 1.
881 17.
878 2.
811 18, 879
'3.
-35 19.
879 4.
305 20.
879 5.
862 21.
880 6.
879 22.
878 7.
879 23.
878 8.
879 24.
880 9.
878 25.
881
- 10. -
879 26.
880 11.
G79 27, 880 12.
879 28.
881 13.
879 29.
324 14.
877 30.
150 15, 879 31.
636 16, 878
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Document Control Desk December Monthly Operating Report Page 2 ATTACHMENT II OPCRATING DATA REPORT DOCKET NO.:
50/395 UNIT:
V. C. SUMMER I DATE: 01/02/90 p
COMPLETED BY:
J. W. HALTIWANGER l
e TELEPHONE:
(803) 345-4297
)
OPERATING STATUS r
- 1. Reporting Period:-
December 1989 Gross Hours in Reporting Period:
744 2.CurrentlyAuthorizedPowerLevel(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
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- 5. Number of Hours Reactor Critical 721.5
._7_276.2 30_Q L 8
- 6. Reactor Raserve Shutdown Hours 0.0 0.0
,_ 0 0 2
- 7. Hcurs Generator on Line 698,_1, 7076J
._Ml59.5
- 8. Unit Reserve: Shutdown Hours OJ
_ C.Q 0,0
- 9. Gross Thermal Energy Generated (MWH) 18.69fik 17521709 102370313 l
- 10. Gross Electrical Energy (MWH) 60777J 5714880 33861709 L
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- 11. Net Electrical Energy Generated (MWH) 579624 5412758 32099916
- 12. Reactor Service Factor 96.9
- 83.1 76.1
- 13. Reactor Availaoility Factor 96.9 83.1
_,_ 76.1
- 14. Unit Service Factor 93.8 80,e 74.4
- 15. Unit Availability Factor 93.8 80.8 74.4
- 16. Unit' Capacity Factor (Using MDC) 88.0 69.8 68.9
- 17. Unit Capacity Factor (Design MWe) 96_.6 68.7 67.8
- 18. Unit Forced Outage Rate 6.2 19.2 8.9 l
- 19. Shutdowns Scheduled Over Next 6 Months (Type Date & Duration of Each):
Refuelino. March 23. 1990. 65 Days L
- 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
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Document Control Desk December Monthly Operating Report Page 3 1
ATTACHMENT III UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.:
50/395 UNIT:
V.-C. SUMMER I DATE:
01/02/90 COMPLETED BY:
J. W. HALTIWANGER TELEPHONE:
(803) 345-4297 December 1989 Method of TYPE Shutting F or S Duration Down the Corrective Actions /
No. -
Date Reason Forced or (Hours)
Reactor or Comments Scheduled Reducing Power 14 891202 F
27.1 A
3 Repair Turbine Controls l
' 15 891229 5
18.8 B
9 Rclay Modifications /
Generator Repairs I
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4 Document Control Desk December Monthly Operating Report Page 4 I
ATTACHMENT IV NARRATIVE
SUMMARY
OF OPERATING EXPERIENCE DOCKET NO.:
50/395 6.
UNIT:
V. C. SUMMER I DATE:
01/02/90 COMPLETED BY:
J. W. HALTIWANGER TELEPHONE:
(803) 345-4297 DECEMBER 1989 On December 2, at 2216 hours0.0256 days <br />0.616 hours <br />0.00366 weeks <br />8.43188e-4 months <br />, the Virgil C. Summer Nuclear Station was taken off-line due to a turbine runback. A relay in the turbine control circuit failed closed so that the operator was unable to terminate the runback. The turbine was tripped after the power had decreased below 50 percent. High deaerator level then caused condensate pumps to trip. When feedwater was restored steam generator levels dropped and caused a reactor trip at 2223 hevrt from approximately 5 percent i
reactor pcwer 9(
-0n Dr.cember 3s at 2108 hours0.0244 days <br />0.586 hours <br />0.00349 weeks <br />8.02094e-4 months <br />, the reactor was taken critical. At 0121 hours0.0014 days <br />0.0336 hours <br />2.000661e-4 weeks <br />4.60405e-5 months <br /> on i
Decembe 4, tha generator was placed on-lir.e.
'The plant van 's c approximately 100 percent power until December 29.
Power was reduced and the generator breaker was opened at 1009 hnurs to perf orm a
' A,
- modification to the circuit that failed on December 2.
The reactor was maintained in Mode 2 during the maintenance acitvities and the generator placed back on-line at 0459 hours0.00531 days <br />0.128 hours <br />7.589286e-4 weeks <br />1.746495e-4 months <br /> on December 30.
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