ML20138R730
| ML20138R730 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 08/31/1985 |
| From: | Dixon O, Loignon G SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | Barry L NRC OFFICE OF RESOURCE MANAGEMENT (ORM) |
| References | |
| NUDOCS 8511180813 | |
| Download: ML20138R730 (5) | |
Text
.
r Director, Office of Resource Management August Monthly Operating Report September 13, 1985 ATTACH ME NT I AVERAGE DAILY UNIT POWER LEVE L DOCKET No.
50/395 UNIT V.
C.
SUMMER I DATE 09/13/85 COMPLETED BY G.
A.
Loignon TELEPHONE (803T 345-5209 MONTH AUGUST 1985 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Ne t) 1.
886 17.
886 2.
887 18, 886 3.
888 19.
885 4.
889 20.
789 5.
890 21.
-32 6.
890 22.
-31 7.
890 23.
-33 8.
890 24.
-29 9.
889 25.
267 10.
887 26.
832 11.
888 27.
886 12.
887 28.
885 13.
882 29.
887 14.
882 30.
886 15.
886 31.
886 16.
886 h
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esitieosia esosaig
- m eacnosoogas
i Director, Office of Resource Management August Monthly Operating Report Page 2 September 13, 1985 i
i ATTACHMENT II OPERATING DATA REPORT DOCKET NO.
50/395 i
UNIT V. C. SUMMER I i
DATE 09/13/85 I
COMPLETED BY G. A. Loignon TELE PHONE (803) 345-5209 f
OPERATING STATUS j
- 1. Reporting Period:
AUGUST 1985 Cross Hours in Reporting Period:
744
- 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 i
TilIS MONTH YR TO DATE CUMULATIVE j
- 5. Number of Hours Reactor Was Critical 655.8 5,255.1 10,808.5
- 6. Reactor Reserve Shutdown Hours 0
0 0
- 7. Hours Generator on Line 640.2 5,167.1 10,532.8
- 8. Unit Reserve Shutdown llours 0
0 0
I
- 9. Cross Thermal Energy Generated (MWH) 1,742,390 13,714,125 27,046,711
- 10. Gross Electrical Energy Generated (MWH) 579,960 4,578,180 9,010,329
- 11. Net Electrical Energy Generated (MWH) 553,349 4,372,715 8,564,811 i
- 12. Reactor Service Factor 88.1 90.1 74.0 i
- 13. Reactor Availability Factor 88.1 90.1 74.0
- 14. Unit Service Factor 86.0 88.6 72.1
- 15. Unit Availability Factor 86.0 88.6 72.1
- 16. Unit Capacity Factor (Using MDC) 84.0 84.7 66.2
- 17. Unit Capacity Factor (Using Des ign MWe) 82.6 83.3 65.1
- 18. Unit Forced Outage Rate 14.0 6.2 8.6
- 19. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
Refueling Outage presently scheduled for October 4, 1985 (64 Days).
- 20. If Shut Down at End of Report Period, Estimated Date of Startup:
N/A
)
- 21. Units in Test Status (Prior to Commerical Operation):
j FORECAST ACillEVED Initial Criticality N/A 10-22-82 Initial Electricity N/A 11-16-82 Commercial Operation N/A 01-01-84 l
Director, Office of Resource Management August Monthly Operating Report Page 3 September 13, 1985 ATTACHMENT III UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.
50/395 UNIT V.
C.
SUMMER I DATE 09/13/85 COMPLETED BY G.
A.
Loignon TELEPHONE T803) 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 9
850820 F
93.3 B
3
- 9) Reactor Trip, Lo RCS Flow 10 850824 F
10.5 H
3
- 10) Reactor Trip, Lo/Lo Steam Generator Level /Feedwater Isolation on low Temperature and Flow l
l l
s Director, Office o f Resource Management August Monthly Operating Report Page 4 September 13, 1985
)
ATTACHMENT IV NARRATIVE
SUMMARY
OF OPERATING EXPERIENCE
(,.
4 i
On August 1,
1985 the Virgil C.
Summer Nuclear Station, Unit No. I was operating at approximately 100% power.
Od August 20, 1985 at 2130 hours0.0247 days <br />0.592 hours <br />0.00352 weeks <br />8.10465e-4 months <br />, the plant tripped from 100% power due to a low Reactor Coolant System flow indication on one loop.
Instrument and Control technicians were repairing a flow transmitter and inadvertently caused a transient on the remaining transmitters for that loop.
On August 24, 1985 at 0526 hours0.00609 days <br />0.146 hours <br />8.69709e-4 weeks <br />2.00143e-4 months <br />, the reactor tripped from approximately 10% power during startup.
Con s e rva t iv e Intermediate Range (IR) high f lu x limits had been set due to the installation of a new IR detector.
A high flux trip subsequently occurred during
~
power escalation when the c ons e rva t iv e limits were not readjusted.
j On August 24, 1985 at 1922 hours0.0222 days <br />0.534 hours <br />0.00318 weeks <br />7.31321e-4 months <br />, the reactor tripped from 25%
power due tosa Lo/Lo level in one steam generator.
This trip was I
a t t r ib u t e d to feedwater isolation on low feedwater temperature and flow during power; ascension.
The plant was r e tu rne d to service on i
August 25, 1985.
j On August 31, 1985 the plant was o pe r a t in g at fu l l power.
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, 7-SOUTH CAROL!NA ELECTRIC & GAS COMPANY PO$f OFFICE 764 COLuweiA. south CanouNA 29218 l
O. W. o8:04 JR.
Vict Pats *0$ Pet i
NuCLean oramariOnes September 13, 1985 i
Director, Office of Resource Management U.S.
Nuclear Regulatory Commission MNBB 7602 Washington, DC 20555 ATTN:
Mr. Learned W.
Barry
SUBJECT:
Virgil C. S u mme r Nuclear Station Docket No. 50/395 Operating License No. N P F-12 August Monthly Operating Report
Dear Mr. Barry:
Enclosed is the August 1985 Monthly Operating Report for the Virgil C.
Summer Nuclear Station Unit No.
1.
This submittal is m ad e in accordance with the requirements of Technical Specification 6.9.1.10.
If there are any questions, please call at your convenience.
Very trul
- yours, fV
/
g 0.
W.
xody 'Jr.
CJM: CAL:0WD/ led /csw Attachment cc:
V.
C.
S u mme r K.
E.
Nodland T.
C.
Nichols, Jr./0.
W.
Dixon, Jr.
R.
A.
Stough E.
H.
Crews, Jr.
G.
Pe r c iv a l E.
C.
Roberts C.
W.
Hehl W.
A.
Williams, Jr.
J.
B.
Knotts, Jr.
H.
R.
Denton S.
D.
Hogge J.
Nels on Grace INPO Records Center Group Managers ANI L ib ra r y D.
A..Nauman L.
N.
Carter O.
S.
Bradham R.
E.
Rainear C.
A.
Price NPCF
.C.
L. Ligon (NSRC)
FILE L.
D.
Shealy 1