ML022380249
| ML022380249 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 08/19/2002 |
| From: | Mallen F South Texas |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| G02, NOC-AE-02001385, STI: 31481030 | |
| Download: ML022380249 (14) | |
Text
Nuclear Operating Company kh T= ftclea" ud e tr n, Chp PO 8a 219 W&*d2J Tew lW3 August 19, 2002 NOC-AE-02001385 File No.: G02 10CFR50.71 STI: 31481030 U. S. Nuclear Regulatory Commission Attention: Document Control Desk One White Flint North 11555 Rockville Pike Rockville, MD 20852 South Texas Project Units 1 and 2 Docket Nos. STN 50-498, STN 50-499 Monthly Operating Reports for July 2002 Pursuant to 10CFR50.71(a) and South Texas Project Electric Generating Station (STPEGS) Technical Specification 6.9.1.5, attached are the Monthly Operating Reports for July 2002. If you should have any questions on this matter, please contact R.L. Hill at (361) 972-7667.
F.H. Mallen Manager, Planning &
Controls Attachments: 1)
STPEGS Unit 1 Monthly Operating Report - July 2002
- 2)
STPEGS Unit 2 Monthly Operating Report - July 2002
cc:
(paper copy)
(electronic copy)
Ellis W. Merschoff Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, Texas 76011-8064 U. S. Nuclear Regulatory Commission Attention: Document Control Desk One White Flint North 11555 Rockville Pike Rockville, MD 20852 Richard A. Ratliff Bureau of Radiation Control Texas Department of Health 1100 West 49th Street Austin, TX 78756-3189 Cornelius F. O'Keefe U. S. Nuclear Regulatory Commission P. 0. Box 289, Mail Code: MN116 Wadsworth, TX 77483 A. H. Gutterman, Esquire Morgan, Lewis & Bockius LLP M. T. Hardt/W. C. Gunst City Public Service Mohan C. Thadani U. S. Nuclear Regulatory Commission R. L. Balcom/D. G. Tees Reliant Energy, Inc.
A. Ramirez City of Austin C. A. Johnson/A. C. Bakken III AEP - Central Power and Light Company Jon C. Wood Matthews & Branscomb C. M. Canady City of Austin Electric Utility Department 721 Barton Springs Road Austin, TX 78704
SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION UNIT 1 MONTHLY OPERATING REPORT JULY 2002 STP NUCLEAR OPERATING COMPANY NRC DOCKET NO. 50-498 LICENSE NO. NPF-76 Approved By:
Date E.D.Y*PIN
MONTHLY
SUMMARY
South Texas Project Unit 1 operated during the reporting period at full power with no unit shutdowns or significant power reductions.
OPERATING DATA REPORT DOCKET NO.
50-498 UNIT 1
DATE Aug. 12, 2002 COMPLETED BY R.L. Hill TELEPHONE 361.972.7667 OPERATING STATUS
- 1.
REPORTING PERIOD: 07/1/02-07/31/02 GROSS HOURS IN REPORTING PERIOD: 744
- 2.
CURRENTLY AUTHORIZED POWER LEVEL (Mwt): 3853 MAXIMUM DEPENDABLE CAPACITY (MWe-Net): 1268 DESIGN ELECTRICAL RATING (MWe-Net): 1268
- 3.
POWER LEVEL TO WHICH RESTRICTED (IF ANY) (MWe-Net): None
- 4.
REASONS FOR RESTRICTION (IF ANY): N/A
- 5.
- 6.
- 7.
- 8.
- 9.
- 10.
- 11.
- 12.
- 13.
- 14.
- 15.
- 16.
- 17.
- 18.
19.
THIS MONTH YR TO DATE CUMULATIVE NUMBER OF HOURS REACTOR CRITICAL 744.0 5,087.
95,036.9 REACTOR RESERVE SHUTDOWN HOURS 0
0 0
HOURS GENERATOR ON LINE 744.0 5,087.0 93406.8 UNIT RESERVE SHUTDOWN HOURS 0
0 0
GROSS THERMAL ENERGY GENERATED (MWH) 2,839,756 19,383,703 348,682,043 NET ELECTRICAL ENERGY GENERATED (MWH) 944,979 6,438,579 113,786,693 REACTOR SERVICE FACTOR (%)
100.0 100.0 77.8 REACTOR AVAILABILITY FACTOR (%)
100.0 100.0 77.8 UNIT SERVICE FACTOR (%)
100.0 100.0 76.5 UNIT AVAILABILITY FACTOR (%)
100.0 100.0 76.5 UNIT CAPACITY FACTOR - Using MDC (%)
100.2 101.2 74.5 UNIT CAPACITY FACTOR - Using DER (%)
100.2 101.2 74.5 UNIT FORCED OUTAGE RATE (%)
0.0 0.0 13.6 SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE, & DURATION OF EACH): N/A IF SHUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: N/A
AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.
50-498 UNIT 1
DATE Aug. 12, 2002 COMPLETED BY R.L. Hill TELEPHONE 361.972.7667 MONTH JULY DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 1 1271 2
1272 3
1274 4
1274 5
1273 6
1274 7
1272 8
1266 9
1264 10 1273 11 1272 12 1271 13 1268 14 1270 15 1269 16 1272 DAY 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 AVERAGE DAILY POWER LEVEL (MWe-Net) 1274 1273 1272 1270 1269 1268 1269 1266 1265 1266 1268 1269 1270 1270 1270
UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.
50-498 UNIT 1
DATE Aug. 12, 2002 COMPLETED BY R.L. Hill TELEPHONE 361.972.7667 REPORT MONTH JULY 12 3
4 5
No.
Date Type Duration Reason Method of Licensee System Component Cause & Corrective Action to Prevent Recurrence (Hours)
Shutting Event Code Code Down Report #
Reactor THERE WERE NO UNIT SHUTDOWNS OR SIGNIFICANT POWER REDUCTIONS DURING THE REPORTING PERIOD I_
IIIII I
I 1
F: Forced S: Scheduled 2
Reason:
A-Equipment Failure (Explain)
B-Maintenance or Test C-Refueling D-Regulatory Restriction E-Operator Training & License Exam F-Administrative G-Operational Error (Explain)
H-Other (Explain) 3 Method:
1-Manual 2-Manual Scram 3-Automatic Scram 4-Cont. of Existing Outage 5-Reduction 9-Other 4
PORVS AND SAFETY VALVE
SUMMARY
There were no PORV or Safety Valves challenged during the reporting period.
SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION UNIT 2 MONTHLY OPERATING REPORT JULY 2002 STP NUCLEAR OPERATING COMPANY NRC DOCKET NO. 50-499 LICENSE NO. NPF-80 Approved By:
E.D. HA Da /71c Date
MONTHLY
SUMMARY
South Texas Project Unit 2 began the reporting period operating at full power. On July 7, at 2312 an automatic reactor trip occurred due to the failure of an inverter that caused the distribution panel to lose power. The loss of the distribution panel caused the main feed water regulating valves to fully open.
This resulted in the water level in the steam generators to increase, which caused the turbine and subsequently the reactor to trip. The inverter failure was caused by a fuse failure that resulted from a voltage spike in the electrical system that provides power to the distribution panel. The fuse was replaced and the unit was returned to service on July 9, at 1414. Full power was achieved on July 10, at 1130.
OPERATING DATA REPORT DOCKETNO.
50-499 UNIT 2
DATE Aug. 12, 2002 COMPLETED BY R.L. Hill TELEPHONE 361.972.7667 OPERATING STATUS
- 1.
REPORTING PERIOD: 07/1/02-07/31/02 GROSS HOURS IN REPORTING PERIOD: 744
- 2.
CURRENTLY AUTHORIZED POWER LEVEL (MWt): 3800 MAXIMUM DEPENDABLE CAPACITY (MWe-Net): 1250.6 DESIGN ELECTRICAL RATING (MWe-Net): 1250.6
- 3.
POWER LEVEL TO WHICH RESTRICTED (IF ANY) (MWe-Net): None
- 4.
REASONS FOR RESTRICTION (IF ANY): N/A THIS MONTH YR TO DATE CUMULATIVE
- 5.
NUMBER OF HOURS REACTOR CRITICAL 717.2 4,992.1 92,806.1
- 6.
REACTOR RESERVE SHUTDOWN HOURS 0
0 0
- 7.
HOURS GENERATOR ON LINE 705.0 4,938.8 90,5665
- 8.
UNIT RESERVE SHUTDOWN HOURS 0
0 0
- 9.
GROSS THERMAL ENERGY GENERATED (MWH) 2,665,426 18,790,267 337,950,798
- 10.
NET ELECTRICAL ENERGY GENERATED (MWH) 861,073 6,126,097 110,084,218
- 11.
REACTOR SERVICE FACTOR (%)
96.4 98.1 80.7
- 12.
REACTOR AVAILABILITY FACTOR (%)
964 98.1 80.7
- 13.
UNIT SERVICE FACTOR (%)
94.8 97.1 78.8
- 14.
UNIT AVAILABILITY FACTOR (%)
94.8 97.1 78.8
- 15.
UNIT CAPACITY FACTOR - Using MDC (%)
92.5 96.3 76.6
- 16.
UNIT CAPACITY FACTOR - Using DER (%)
92.5 96.3 76.6
- 17.
UNIT FORCED OUTAGE RATE (%)
5.2 2.9 13.4
- 18. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE, & DURATION OF EACH):
Scheduled 70-day outage to allow refueling and steam generator replacement to begin on October 2, 2002.
- 19. IF SHUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: N/A
AVERAGE DAILY UNIT POWER LEVEL DOCKETNO.
50-499 UNIT 2
DATE Aug. 12, 2002 COMPLETED BY R.L. Hill TELEPHONE 361.972.7667 MONTH JULY DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 1 1242 2
1242 3
1242 4
1241 5
1241 6
1242 7
1198 8
0 9
118 10 1143 11 1239 12 1237 13 1234 14 1237 15 1237 16 1240 DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 17 1241 18 1231 19 1239 20 1238 21 1236 22 1235 23 1235 24 1232 25 1233 26 1234 27 1236 28 1237 29 1239 30 1239 31 1240
UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.
50-499 UNIT 2
DATE Aug. 12,2002 COMPLETED BY R.L. Hill TELEPHONE 361.972.7667 REPORT MONTH JULY 1
F: Forced S: Scheduled 2
Reason:
A-Equipment Failure (Explain)
B-Maintenance or Test C-Refueling D-Regulatory Restriction E-Operator Training & License Exam F-Administrative G-Operational Error (Explain)
H-Other (Explain) 3 Method:
1-Manual 2-Manual Scram 3-Automatic Scram 4-Cont. of Existing Outage 5-Reduction 9-Other 4
2 3
4 5
No.
Date Type Duration Reason Method of Licensee System Component Cause & Corrective Action to Prevent Recurrence (Hours)
Shutting Event Code Code Down Report #
Reactor 02-02 020707 F
39.0 A
3 02-02-003 JB INVT Automatic reactor trip occurred due to the failure of an inverter that caused the distribution panel to lose power. The loss of the distribution panel caused the main feed water regulating valves to fully open. This resulted in the water level in the steam generators to increase, which caused the turbine and subsequently the reactor to trip. The inverter failure was caused by a fuse failure that resulted from a voltage spike in the electrical system that provides power to the distribution panel. The fuse was replaced.
PORVS AND SAFETY VALVE
SUMMARY
There were no PORV or Safety Valves challenged during the reporting period.