ML031110414
| ML031110414 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 04/15/2003 |
| From: | Mallen F South Texas |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| G02, NOC-AE-03001515, STI:31590245 | |
| Download: ML031110414 (14) | |
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b T=Z 77433 April 15, 2003 NOC-AE-03001515 File No.: G02 10CFR50.71 STI: 31590245 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 March 2003 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 March 2003. If you should have any questions on this matter, please contact R.L. Hill at (361) 972-7667.
F.H. Mallen Manager, Financial Controls Attachments: 1)
STPEGS Unit 1 Monthly Operating Report - March 2003
- 2)
STPEGS Unit 2 Monthly Operating Report - March 2003
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: MN1 16 Wadsworth, TX 77483 A. H. Gutterman, Esquire Morgan, Lewis & Bockius LLP L. D. Blaylock City Public Service Mohan C. Thadani U. S. Nuclear Regulatory Commission R. L. Balcom Texas Genco, LP A. Ramirez City of Austin C. A. Johnson 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 MARCH 2003 STP NUCLEAR OPERATING COMPANY NRC DOCKET NO. 50-498 LICENSE NO. NPF-76 Approved By:
/
oJ E.D.
IN Date
MONTHLY
SUMMARY
South Texas Project Unit 1 began the reporting period operating at full power. On March 1, at 0154 the unit was manually tripped in response to a loss of condensate flow caused by a failed power supply. The power supply was replaced, the unit returned to service on March 3, at 0610 and full power was achieved on March 6, at 0112.
On March 14, the unit began a reactor power coastdown due to fuel burnup. Coastdown operations were successfully completed and the unit was removed from service on March 26, at 0001 for refueling.
OPERATING DATA REPORT DOCKET NO.
50-498 UNIT I
DATE Apr. 8. 2003 COMPLETED BY R L. Hill TELEPHONE 361.972.7667 OPERATING STATUS
- 1.
REPORTING PERIOD: 3/1/03-3/31/03 GROSS HOURS IN REPORTING PERIOD:
744
- 2.
CURRENTLY AUTHORIZED POWER LEVEL (Mwt): 3,853 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
- 5.
NUMBER OF HOURS REACTOR CRITICAL
- 6.
REACTOR RESERVE SHUTDOWN HOURS
- 7.
HOURS GENERATOR ON LINE
- 8.
UNIT RESERVE SHUTDOWN HOURS
- 9.
GROSS THERMAL ENERGY GENERATED (MWH)
- 10.
NET ELECTRICAL ENERGY GENERATED (MWH)
- 11.
REACTOR SERVICE FACTOR (%)
- 12.
REACTOR AVAILABILITY FACTOR (%)
- 13.
UNIT SERVICE FACTOR (%/)
- 14.
UNIT AVAILABILITY FACTOR (%)
- 15.
UNIT CAPACITY FACTOR - Using MDC (%)
- 16.
UNIT CAPACITY FACTOR - Using DER (%)
- 17.
UNIT FORCED OUTAGE RATE (%)
THIS MONTH 555 0 0
547.7 0
1,943.922 647,291 74.6 74.6 73.6 73.6 69.6 69.6 8.7 YR TO DATE 197L0 0
1.963.7 0
7,348.061 2,463,746 91.2 91.2 90 9 90.9 91.2 91.2 2.6 CUMULATIVE 100,500 1 0
98,856.9 0
369,298,524 120,679,801 78.5 78.5 77.3 77.3 75.4 75.4 13.2
- 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: 4/20/03
AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.
50-498 UNIT 1
DATE Apr. 8. 2003 COMPLETED BY R.L Hill TELEPHONE 361.972 7667 MONTH MARCH DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 1 55 2
0 3
383 4
1209 5
1242 6
1274 7
1271 8
1272 9
1286 10 1283 11 1271 12 1254 13 1225 14 1226 15 1229 16 1156 DAY 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 AVERAGE DAILY POWER LEVEL (MWe-Net) 1169 1187 1193 1179 1175 1163 1153 1142 974 0
0 0
0 0
0
UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.
50-498 UNIT 1
DATE Apr. 8. 2003 COMPLETED BY R.L. Hill TELEPHONE 361.972 7667 REPORT MONTH MARCH 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 03-01 030301 F
52.3 A
2 01-03-002 SD JX Manual reactor trip in response to a loss of condensate flow caused by a failed power supply. The power supply was replaced 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
On March 12, with Unit 1 at 100 percent reactor power, pressurizer PORV PCV-0656A momentarily opened and then closed during the performance of an analog channel operational test. The surveillance test procedure (OPSP02-RC-0455) was suspended after the PORV lifted.
It was determined that the surveillance test included a recently revised procedural step that was technically incorrect. All other scheduled surveillance tests were reviewed to evaluate if any recent revisions would have a similar impact.
SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION UNIT 2 MONTHLY OPERATING REPORT MARCH 2003 STP NUCLEAR OPERATING COMPANY NRC DOCKET NO. 50499 LICENSE NO. NPF-80 Approved By:
CRUX 7',
od E.D. I&LPIN Date
MONTHLY
SUMMARY
South Texas Project Unit 2 began the reporting period shutdown for repairs on the main turbine/generator rotor train. Following repairs the unit was returned to service on March 13, at 1819 and achieved full power on March 15, at 0200.
OPERATING DATA REPORT DOCKETNO.
50-499 UNIT 2
DATE Apr. 8.2003 COMPLETED BY R.L. Hill TELEPHONE 361.972.7667 OPERATING STATUS
- 1.
REPORTING PERIOD: 3/1103-3/31/03 GROSS HOURS IN REPORTING PERIOD:
744
- 2.
CURRENTLY AUTHORIZED POWER LEVEL (MWt): 3,853 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
- 5.
NUMBER OF HOURS REACTOR CRITICAL
- 6.
REACTOR RESERVE SHUTDOWN HOURS
- 7.
HOURS GENERATOR ON LINE
- 8.
UNIT RESERVE SHUTDOWN HOURS
- 9.
GROSS THERMAL ENERGY GENERATED (MWH)
- 10.
NET ELECTRICAL ENERGY GENERATED (MWH)
- 11.
REACTOR SERVICE FACTOR (%)
- 12.
REACTOR AVAILABILITY FACTOR (%)
- 13.
UNIT SERVICE FACTOR (%)
- 14.
UNIT AVAILABILITY FACTOR (%)
- 15.
UNIT CAPACITY FACTOR - Using MDC (%)
- 16.
UNIT CAPACITY FACTOR - Using DER (%)
- 17.
UNIT FORCED OUTAGE RATE (%)
THIS MONTH 466.5 0
447.8 0
1,618.988 532.988 62.7 62.7 60.2 602 57.3 57.3 39.8 YR TO DATE 546.7 0
513.1 0
1,773.989 579.365 25.3 25.3 23.8 23.8 21.4 21.4 762 CUMULATIVE 95,104.4 0
92.805.5 0
346,187.640 112.757.332 '
78.7 78.7 76 8 76 8 74 6 74.6 14.8
- 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: N/A
AVERAGE DAILY UNIT POWER LEVEL DOCKETNO.
50-499 UNIT 2
DATE Apr. 8, 2003 COMPLETED BY R.L. Hill TELEPHONE 361.972.7667 MONTH MARCH DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 0
10 0
11 0
12 0
13 27 14 543 DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1273 1275 1275 1275 1279 1278 1278 1278 1276 1260 1269 1263 1263 1270 1272 15 1277 1278 31 16
UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.
50-499 UNIT 2
DATE Apr. 8. 2003 COMPLETED BY R L Hill TELEPHONE 361 972 7667 REPORT MONTH MARCH 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 03-01 030124 F
296.2 A
4 N/A TA TRB Main turbine/generator removed from service due to excessive vibration.
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
On March 9, Unit 2 was transitioning Reactor Coolant System (RCS) temperature control from Main Steam (MS) Power Operated Relief Valve (PORV) 2C to MS PORV 2B, when an unexpected MS Low Compensated Pressure Safety Injection signal was initiated. The plant was stable in Mode 3 at normal operating pressure (2235 psig) and temperature (567 degrees Fahrenheit). All four (4) MS Isolation valves were closed for ongoing work on turbine train. MS PORV 2C had been in service for temperature control for approximately three and one-half days.
Temperature control was being transferred to MS PORV 2B to support the work schedule.
During recovery from the safety injection event, RCS Pressurizer PORV 0655A unexpectedly opened due to increasing pressurizer pressure. This resulted when the spray valves closed due to the instrument air isolation with the pressurizer heaters in manual. The pressurizer heaters were secured and the RCS pressure stabilized.