ML20129G434
| ML20129G434 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 04/30/1985 |
| From: | Dixon O, Loignon G SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | Barry L NRC OFFICE OF RESOURCE MANAGEMENT (ORM) |
| References | |
| NUDOCS 8507180055 | |
| Download: ML20129G434 (5) | |
Text
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Director, Of fice. of Re s ou r ce Management April Monthly Operating 'eport May 10, 1985 ATTACHMENT I AVERAGE DAILY UNIT POWER LEVEL DOCKET No.
50/395 I
UNIT V.
C.
SUMMER-DATE 05/10/85 COMPLETED BY G.
A.
Loignon TELEPHONE (803) 345-5209 MONTH APRIL 1985 DAY AVERAGE DAILY POWER LEVEL DAY AV ERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Net) 1.
898 17, 897 2.
897 18.
218 3.
898 19, 370 4.
842 20.
870 5.
58 21.
892 6.
708 22.
895 7.
894 23.
887 8.
895 24.
876 9.
896 25.
876 10.
896 26.
880 11.
885 27.
895
. 12.
801 28.
860 13.
847 29.
18 14.
898 30.
-31 15.
897 31.
16.
897
/0 8507180055850g93 P
PDR ADOCA 050 I
PDR i
R f
r Director, Of fice of Resource Managemen; April Monthly Operating Report Page 2 May 10, 1985 ATTACHMENT II OPERATING DATA REPORT DOCKET No.
50/395 UNIT V. C. SUMMER I DATE 05/10/85 COMPLETED BY G. A. Loignon TELEPHONE (803) 345-5209 OPERATING STATUS
- 1. Reporting Period:
APRIL 1985 Cross Hours in Reporting Period: 719
- 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 (If Any): N/A THIS MONTH YR TO DATE CUMULATIVE
- 5. Number of Hours Reactor Was Critical 653.0 2659.2 8212.6
- 6. Reactor Reserve Shutdown Hours 0
0 0
- 7. Hours Generator on Line 636.0 2,594.1 7,959.8
- 8. Unit Reserve Shutdown Hours 3
0 0
- 9. Gross Thermal Energy Generated (MWH) 1,682,110 6,672,337 20,004,923
- 10. Gross Electrical Energy Generated (MRH) 564,340 2,231,680 6,663,829
- 11. Net Electrical Energy Generated (MWH) 539,009 2,127,927 6,320,023
- 12. Reactor Service Factor 90.8 92.4 70.4
- 13. Reactor Availability Factor 90.8 92.4 70.4
- 14. Unit Service Factor 88.5 90.1 68.2
- 15. Unit Availability Factor 86.5 90.1 68.2
- 16. Unit Capacity Factor (Using MDC) 84.7 83.5 61.2
- 17. Unit Capacity Factor (Using Design MWe) 83.3 82.1 60.2
- 18. Unit Forced Outage Rate 5.4 8.4 10.0
- 19. Shutdowns Scheduled Over Nex: 6 Months (Type, Date, and Duration of Each):
Refueling Outage presently scheduled for October 1985.
- 20. If Shut Down at End of Report Period, Estimated Date of Startup: 05/08/85
- 21. Units in Test Status (Prior to Commerical Operation):
FORECAST ACHIEVED Initial Criticality N/A 10-22-82 Initial Electricity N/A 11-16-82 Commercial Operation N/A 01-01-84
's Director, Office of Resocree Management April Monthly Operating Report
.Page 3 May 10, 1985 ATTACHMENT III UNIT SHUTDOWNS'AND POWER REDUCTIONS DOCKET NO.
50/395 UNIT V.
C.
SUMMER I DATE 05/10/85 COMPLETED BY G.
A.
Loignon TELEPHONE (803) 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 6
850404 F
17.2 A
2
- 6) Repair Power Supply for Secondary Sid e Indications.
7 850418 F
19.3 A
3
- 7) Repair Rod Control.
8 850429 S
46.5 A
3
- 8) Shu t d o wn to Repair Steam Generator Tube Leak.
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Director, Office o f Re s ou r c e Management April Monthly Operating Report Page 4 May 10, 1985 ATTACHMENT IV NARRATIVE
SUMMARY
OF OPERATING EXPERIENCE On April 1,
1985, the Virgil C.
Summer Nuclear Station, Unit No.
1, was operating at 100% power.
On Ap ril 4, 1985, at 2234 hours0.0259 days <br />0.621 hours <br />0.00369 weeks <br />8.50037e-4 months <br />, the reactor was tripped manually from 100% power due to a loss of secondary system controls and indicators.
Cause of event was power supply f ailu r e.
The forced outage was 17.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> in duration.
On April 12, 1985, at 015 5 hou r s, a condensate pump failed and power was reduced to 90% while repairs were mad e.
On April 18, 1985, at 0630 hours0.00729 days <br />0.175 hours <br />0.00104 weeks <br />2.39715e-4 months <br />, the reactor tripped on nega t iv e rate from 100% power.
The plant was experiencing problems with rod control prior to the trip.
Repairs were mad e to the rod control system during the outage of 19.3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br />.
On April 29, 1985, at 0130 hours0.0015 days <br />0.0361 hours <br />2.149471e-4 weeks <br />4.9465e-5 months <br />, the reactor tripped on l o w-l o w level in Steam Generator "B" while the plant was being shutdown to repair a steam generator tube leak.
The cause of the trip was attributed to secondary side transients.
On April 30, 1985, the plant remained s hu t d o wn for steam generator tube leak repairs.
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7' SOUTH CAROLINA ELECTRIC & GAS COMPANY POST OFFICE 164 COLuusiA. Souts CAnouNA 29218 O. W. Osm0N. Ja, T
ViCE PRESIDENT uuCtra oceaanoNs May 10, 1985 Director, Office of Resource Management U.S.
Nuclear Regulatory Commission MNBB 7602 Washington, DC 20555 ATTN:
Mr. Learned W.
Barry SU B JE CT:
Virgil C.
Summer Nuclear Station Docket No. 50/395 Operating License No. NP F-12 April Monthly Operating Report
Dear Mr. Barry:
Please find enclosed the April 1985 Monthly Operating Report for the Virgil C.
Summer Nuclear Station Unit No.
1.
This submittal is mad e in accordance with the requirements of Technical Specification 6.9.1.10.
If there are any questions, please call us at you r convenience.
Very truly yours, W. [p r.
O.
w CJM: GAL:OWD/ led Attachment cc:
V.
C.
Summer C.
L.
Ligon (NSRC)
T.
C.
Nichols, Jr./0.
W.
Dixon, Jr.
K.
E.
Nodland E.
H.
Crews, Jr.
R.
A.
S t ou gh E.
C.
Roberts G.
P e r c iva l W.
A.
Williams, Jr.
C.
W.
Hehl H.
R.
Denton J.
B.
Knotts, Jr.
J.
Nelson Grace INPO Records Center Group Managers ANI L ib ra ry D.
A.
Nauman L.
N.
Carter 0.
S.
Bradham C.
S.
Gramling C.
A.
Price NPCF FILE y
.-