ML20155B702
| ML20155B702 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 05/31/1988 |
| From: | Haltiwanger J, Nauman D SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| NUDOCS 8806130300 | |
| Download: ML20155B702 (5) | |
Text
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Document Control Desk
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May Monthly Operating Report Page 1 ATTACHMENT I AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.:
50/395 UNIT:
V. C. SUMMER I DATE: 06/02/88 COMPLETED BY:
J. W. HALTIWANGER TELEPHONE:
(803) 345-4297 MAY 1988 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Net) 1.
891 17, 885 2.
890 18.
886 3.
890 19.
885 4.
890 20, 885 5.
890 21.
886 6.
890 22.
886 7.
882 23.
886 8.
890 24.
886 9.
890 25.
885 10, 890 26.
885 11.
891 27, 735 12.-
150 28, 293 13.
197 29, 416 14.
282 30.
855 15.
737 31.
566 16.
885 d
PDR8806130300 880531 Vdi
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ADOCK 05000395 R
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Document Control Desk May Monthly Operating Report Page 2
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ATTACHMENT II OPERATING DATA REPORT DOCKET NO.:
50/395 UNIT:
V. C. SUMMER I DATE: 06/02/88 COMPLETED 8Y:
J. W. HALTIWANGER TELEPHONE:
(803) 345-4297 OPERATING STATUS
- 1. Reporting Period:
May 1988 Gross 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:
N/A THIS MONTH YR TO DATE CUMULATIVE
- 6. Reactor Reserve Shutdown Hours 0.0 0.0
~~30264.7
- 5. Number of Hours Reactor Critical 727.7 3595.8 0.0
- 7. Hours Generator on Line 723.7 3583.6 297!1.7
- 8. Unit Reserve Shutdown Hours 0.0 0.0 0.0
- 9. Gross Thermal Energy Generated (MWH) 1810598 9711256 78494936 597000 3238660' 26068109 1
- 10. Gross Electrical Energy (MWH) _
570111 3104669 24839843
- 11. Het Electrical Energy Generated (MWH)
- 12. Reactor Service Factor 97.8 98.6 78.2
- 13. Reactor Availability Factor 97.8 98.6 78.2
- 14. Unit Service Factor 97.3 98.3 76.8 l-
- 15. Unit Availability Factor 97.3 98.3 76.8
- 16. Unit Capacity Factor (Using MDC) 86.6 96.2 72.5
- 17. Unit Capacity Factor (Design MWe) 85.1 94.6 71.3 l
- 18. Unit Forced Outage Rate 2.7 1.7 6.0
- 19. Shutdowns Scheduled Over Hext 6 Months (Type, Date & Duration of Each):
REFUELING. SEPTEMBER 16, 1988. 85 OAYS.
- 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 l
Document Control Desk May Monthly Operating Report Page 3 ATTACHMENT III UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.:
50/395 UNIT:
V. C. SUMMER I DATE:
06/02/88 COMPLETED BY:
J. W. HALTIWANGER TELEPHONE:
(803) 345-4297 MAY 1988 q _.
Method of TYPE Shutting F or S Duration Down the Corrective Actions /
No.
Date Reason Forced or (Hours)
Reactor or Comments Scheduled Reducing Power 2
880512 F
20.3 A
3 Repair Switch for MSIV 3
880527 F
0.0 8
5 Repair Condenser Tube Leaks 4
880531 F
0.0 H
5 Secondary Chemistry Out of Spec
Document Control Desk May Monthly Operating Report Page 4 ATTACHMENT IV NARRATIVE
SUMMARY
OF OPERATING EXPERIENCE DOCKET N0.:
50/395 UNIT:
V. C. SUMMER I DATE:
06/02/88 COMPLETED BY:
J. W. HALTIWANGER TELEPHONE:
(803) 345-4297 MAY 1988 V. C. Summer Nuclear Station, Unit 1, operated at approximately 100 percent power
.until May 12, 1988.
On May 12, 1988, at 0446 hours0.00516 days <br />0.124 hours <br />7.374339e-4 weeks <br />1.69703e-4 months <br />, the plant tripped, and a Safety Injection (SI) occurred. As a result of the SI, a Pressurizer PORV was challenged (open) for two seconds. The cause of the trip appears to be a defective test switch which caused the main steam isolation valve under test to close fully instead of the required 10 percent closet. The plant was tiack on line at 0105 hours0.00122 days <br />0.0292 hours <br />1.736111e-4 weeks <br />3.99525e-5 months <br /> on May 13.
On May 27 at 1200 hours0.0139 days <br />0.333 hours <br />0.00198 weeks <br />4.566e-4 months <br />, power was reduced to approximately 40 percent to allow condenser tube repairs.
Plant returned to 100 percent ]ower at 0600 on May 30.
On May 31 power was reduced to approximately 40 percent due to secondary water chemistry being out of specification.
Power was being held at approximately 40 percent at the end of May 1988.
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t Ca lina Electric & Gas Company D n A. Na n
Jenkinsville, SC 29065 Nuclear Operations SCE&G (8" "
June 9, 1988 Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555 ATTN: Mr. Learned W. Barry
SUBJECT:
Virgil C. Summer Nuclear Station Docket No. 50/395 Operating License No. NPF-12 May Monthly Operating Report Gentlemen:
Please find enclosed the May 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, ery truiy yours.
.A Nauman CJM:JWH: DAN /lcd Attachments pc:
J. G. Connelly, Jr./0. W. Dixon, Jr./T. C. Nichols, Jr.
E. C. Roberts
- 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 C. A. Price R. E. Rainear R. B. Clary J. W. Flitter W. R. Higgins Marsh & McLennan K. E. Hodland NSRC R. M. Campbell, Jr.
NPCF J. C. Snelson RTS (RG 880002)
G. O. Percival File (818.03-1) m L