NOC-AE-03001451, December 2002 Monthly Operating Report for South Texas Project

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December 2002 Monthly Operating Report for South Texas Project
ML030280519
Person / Time
Site: South Texas  STP Nuclear Operating Company icon.png
Issue date: 01/15/2002
From: Mallen F
South Texas
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
G02, NOC-AE-03001451, STI: 31541410
Download: ML030280519 (14)
v • d • e


Text

Nuclear Opverating wCompany SoidhkwPa~Ak rqrVqCcffM POIAF3 0&wt akw77433 January 15, 2002 NOC-AE-03001451 File No.: G02 10CFR50.71 STI: 31541410 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 December 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 December 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 - December 2002

2) STPEGS Unit 2 Monthly Operating Report - December 2002

cc:

(paper copy) (electronic copy)

Ellis W. Merschoff A. H. Gutterman, Esquire Regional Administrator, Region IV Morgan, Lewis & Bockius LLP U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 M. T. Hardt/W. C. Gunst Arlington, Texas 76011-8064 City Public Service U. S. Nuclear Regulatory Commission Mohan C. Thadani Attention: Document Control Desk U. S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike R. L. Balcom/D. G. Tees Rockville, MD 20852 Texas Genco, LP Richard A. Ratliff A. Ramirez Bureau of Radiation Control City of Austin Texas Department of Health 1100 West 49th Street C. A. Johnson/A. C. Bakken III Austin, TX 78756-3189 AEP - Central Power and Light Company Cornelius F. O'Keefe Jon C. Wood U. S. Nuclear Regulatory Commission Matthews & Branscomb P. 0. Box 289, Mail Code: MN116 Wadsworth, TX 77483 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 DECEMBER 2002 STP NUCLEAR OPERATING COMPANY NRC DOCKET NO. 50-498 LICENSE NO. NPF-76 Approved By:

E.D. WCLPIN fate

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 I DATE Jan. 8, 2003 COMPLETED BY R.L. Hill TELEPHONE 361.972.7667 OPERATING STATUS I. REPORTING PERIOD: 12/1102-12/31/02 GROSS HOURS IN REPORTING PERIOD: 744

2. CURRENTLY AUTHORIZED POWER LEVEL (Mwt): 3,853 MAXIMUM DEPENDABLE CAPACITY (MWe-Net): 1,5.

DESIGN ELECTRICAL RATING (MWe-Net): 1,250.6

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 744.0 98,529.1
6. REACTOR RESERVE SHUTDOWN HOURS 0 0 0
7. HOURS GENERATOR ON LINE 744.0 8,573.4 96,893.1
8. UNIT RESERVE SHUTDOWN HOURS 0 0 0 2,839,848 32,652,123 361,950,463
9. GROSS THERMAL ENERGY GENERATED (MWH) 953,549 10,867,941 118,216,055
10. NET ELECTRICAL ENERGY GENERATED (MWH)
11. REACTOR SERVICE FACTOR (%) 1000 97.9 78.3 100.0 97.9 78.3
12. REACTOR AVAILABILITY FACTOR (%)

100.0 97.__99 77.0

13. UNIT SERVICE FACTOR (%)

97.9

14. UNIT AVAILABILITY FACTOR (%) 100 0 77.0
15. UNIT CAPACITY FACTOR - Using MDC (%) 102.5 99.2 75.1
16. UNIT CAPACITY FACTOR - Using DER (%) 102.5 99.2 75.1
17. UNIT FORCED OUTAGE RATE (%) 0.0 2.1 13.4
18. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE, & DURATION OF EACH):

Scheduled 22-day outage to allow scheduled refueling to begin on March 26, 2003.

19. IF SHUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: N/A

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-498 UNIT I DATE Jan 8, 2003 COMPLETED BY R.L. Hill TELEPHONE 361.972.7667 MONTH DECEMBER DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL LEVEL (MWe-Net) (MWe-Net) 1274 17 1284 1273 18 1284 1272 19 1272 1272 20 1287 1262 21 1286 1270 22 1285 1286 23 1283 1284 24 1284 1283 25 1286 1285 26 1286 1286 27 1285 1283 28 1286 1286 29 1285 1286 30 1284 1285 31 1285 16 1284

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-498 UNIT 1 DATE Jan. 8, 2003 COMPLETED BY R.L. Hill TELEPHONE 361.972.7667 REPORT MONTH DECEMBER 1 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 THERE WERE NO UNIT SHUTDOWNS OR SIGNIFICANT POWER REDUCTIONS DURING THE REPORTING PERIOD II_ I I III 1 2 3 4 5 F: Forced Reason: Method: IEEE 805-1983 IEEE 803-1983 S: Scheduled A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Scram C-Refueling 3-Automatic Scram D-Regulatory Restriction 4-Cont. of Existing E-Operator Training & License Exam Outage F-Administrative 5-Reduction G-Operational Error (Explain) 9-Other H-Other (Explain)

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 DECEMBER 2002 STP NUCLEAR OPERATING COMPANY NRC DOCKET NO. 50-499 LICENSE NO. NPF-80 Approved By: -r t- /4 - / "' e E.D. VLPIN Date

MONTHLY

SUMMARY

South Texas Project Unit 2 began the reporting period shutdown for scheduled refueling and steam generator replacement. The unit was returned to service on December 6, at 0509 and full power was achieved on December 13, at 1114.

On December 15, at 1805 the reactor was manually tripped due to a sudden high main turbine vibration. After opening the turbine and condenser, one last row blade on low-pressure (LP) rotor 22 had separated from the rotor causing some collateral damage within LP 22. Numerous last row blade cracks were discovered during visual inspections of the blades on LP 22 and 23.

Additional damage was found on stationary blades in 22, the exhaust flow guide and some condenser tubes. Metallurgical examinations found the cracks as a result of high cycle fatigue.

The unit remained shutdown at the end of the reporting period with repairs ongoing.

OPERATING DATA REPORT DOCKETNO. 50-499 UNIT 2 DATE Jan. 8, 2003 COMPLETED BY R.L. Hill TELEPHONE 361.972.7667 OPERATING STATUS

1. REPORTING PERIOD: 12/1/02-12/31/02 GROSS HOURS IN REPORTING PERIOD: 744
2. CURRENTLY AUTHORIZED POWER LEVEL (MWt): 3853 MAXIMUM DEPENDABLE CAPACITY (MWe-Net): 1,250.6 DESIGN ELECTRICAL RATING (MWe-Net): 1,250.6
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 NUMBER OF HOURS REACTOR CRITICAL 263.4 6,743.7 94,557.7 5.
6. REACTOR RESERVE SHUTDOWN HOURS 0 0 0
7. HOURS GENERATOR ON LINE 237.9 6,664.7 92,292.4
8. UNIT RESERVE SHUTDOWN HOURS 0 0 0 795,432 25,253,119 344,413,651
9. GROSS THERMAL ENERGY GENERATED (MWH)
10. NET ELECTRICAL ENERGY GENERATED (MWH) 257,429 8,219,846 112,177,967
11. REACTOR SERVICE FACTOR (%) 35.4 77.0 79.7
12. REACTOR AVAILABILITY FACTOR (%) 35.4 77.0 79.7
13. UNIT SERVICE FACTOR (%) 32.0 76.1 77.8
14. UNIT AVAILABILITY FACTOR (%) 32.0 76.1. 77.8
15. UNIT CAPACITY FACTOR - Using MDC (%) 27.7 75.0 75.6
16. UNIT CAPACITY FACTOR - Using DER (%) 27.7 75.0 75 6
17. UNIT FORCED OUTAGE RATE (%) 62.1 7.5 13.5
18. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE, & DURATION OF EACH): N/A
19. IF SHUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: 01/18/03

AVERAGE DAILY UNIT POWER LEVEL DOCKETNO. 50-499 UNIT 2 DATE Jan. 8, 2003 COMPLETED BY R.L. Hill TELEPHONE 361.972.7667 MONTH DECEMBER DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL LEVEL (MWe-Net) (MWe-Net) 1 0 17 0 2 0 18 0 3 0 19 0 4 0 20 0 5 2 21 0 6 294 22 0 7 894 23 0 8 1110 24 0 9 1210 25 0 10 1261 26 0 11 1272 27 0 12 1244 28 0 13 1212 29 0 14 1272 30 0 15 954 31 0 16 0

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-499 UNIT 2 DATE Jan. 8, 2003 COMPLETED BY R.L. Hill TELEPHONE 361.972.7667 REPORT MONTH DECEMBER 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 02-03 021002 5 116.3 C 1 N/A N/A N/A Scheduled outage to allow refueling and steam generator replacement.

02-04 021215 F 389.9 A 2 02-02-005 TA TRB Reactor manually tripped due to a sudden high main turbine vibration. After opening the turbine and condenser, one last row blade on low-pressure (LP) rotor 22 had separated from the rotor causing some collateral damage within LP 22. Numerous last row blade cracks were discovered during visual inspections of the blades on LP 22 and 23. Additional damage was found on stationary blades in 22, the exhaust flow guide and some condenser tubes. Metallurgical examinations found the cracks as a result of high cycle fatigue.

1 2 3 4 5 F: Forced Reason: Method: IEEE 805-1983 IEEE 803-1983 S: Scheduled A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Scram C-Refueling 3-Automatic Scram D-Regulatory Restriction 4-Cont. of Existing E-Operator Training & License Exam Outage F-Administrative 5-Reduction G-Operational Error (Explain) 9-Other H-Other (Explain)

PORVS AND SAFETY VALVE

SUMMARY

There were no PORV or Safety Valves challenged during the reporting period.

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