HL-6306, September 2002 Monthly Operating Report for Edwin I. Hatch
| ML022880461 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 10/08/2002 |
| From: | Sumner H Southern Nuclear Operating Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| HL-6306 | |
| Download: ML022880461 (8) | |
Text
Lewis Sumner Vice President Hatch Project Support Southern Nuclear Operating Company, Inc.
40 Inverness Parkway Post Office Box 1295 Birmingham, Alabama 35201 Tel 205 992 7279 Fax 205 992 0341 October 8, 2002 Docket Nos. 50-321 50-366 SOUTHERN Ar...
COMPANY Energy to Serve Your World '
HL-6306 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555 Edwin I. Hatch Nuclear Plant Monthly Operating Reports Ladies and Gentlemen:
Enclosed are the September 2002 Monthly Operating Reports for Edwin I. Hatch Nuclear Plant Unit 1, Docket No. 50-321, and Unit 2, Docket No. 50-366. These reports are submitted in accordance with Technical Specifications 5.6.4.
Respectfully submitted, H. L. Sumner, Jr.
IFL/eb
Enclosures:
- 1. September Monthly Operating Report for Plant Hatch Unit 1
- 2.
September Monthly Operating Report for Plant Hatch Unit 2 cc: Southern Nuclear Operating Company Mr. P. H. Wells, Nuclear Plant General Manager SNC Document Management (R-Type A02.001)
U. S. Nuclear Regulatory Commission, Washington D. C.
Mr. Joseph Colaccino, Project Manager - Hatch U. S. Nuclear Regulatory Commission, Region II Mr. L. A. Reyes, Regional Administrator Mr. J. T. Munday, Senior Resident Inspector - Hatch Utility Data Institute, Inc.
Ms. Barbara Lewis - McGraw-Hill Companies 7>
Plant Hatch Unit 1 Monthly Operating Report September 2002 Table of Contents Page Operating Data Report El-1 Unit Shutdowns and Power Reductions El-2
OPERATING DATA REPORT Docket No.:
50-321 Unit Name:
E. I. Hatch Unit 1 Date:
October 2, 2002 Completed By:
S. B. Rogers Telephone:
(912) 366-2000 x2279 Operating Status
- 1. Reporting Period:
- 2. Design Electrical Rating (Net MWe):
- 3. Maximum Dependable Capacity (Net MWe):
SEPTEMBER 2002 870 856 This Month Number of Hours Reactor Was Critical:
Hours Generator On Line:
Unit Reserve Shutdown Hours:
Net Electrical Energy Generated:
720.0 720.0 0.0 612,821 Year To Date 5,777.8 5,687.6 0.0 4,828,804 Cumulative 188,292.2 182,381.2 0.0 132,732,941 CHALLENGES TO MAIN STEAM SAFETY / RELIEF VALVES El-1
- 4.
- 5.
- 6.
7.
Date Tag No.
Event Description (YYMMDD)
No challenges this month.
UNIT SHUTDOWNS Docket No.:
50-321 Unit Name:
E. I. Hatch Unit 1 Date:
October 2, 2002 Completed By: S. B. Rogers Telephone:
(912) 366-2000 x2279 Reporting Period:
SEPTEMBER 2002 Type Method of Date F Forced Duration Shutting Cause/Corrective Actions No.
(YYMMDD)
S Scheduled (Hours)
Reason (1) Down (2)
Comments No unit shutdowns occurred this month.
(1) Reason:
(2) METHOD A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Trip/Scram C-Refueling 3-Automatic Trip/Scram D-Regulatory Restriction 4-Continuation E-Operator Training/License Examination 5-Other (Explain)
F-Administrative G-Operational Error (Explain)
H-Other (Explain)
CAUSE/CORRECTIVE ACTION/COMMENTS:
NARRATIVE REPORT El -2 Unit 1 began the month of September with a power ascension in progress. The unit was operating at approximately 96% of rated thermal power following a load reduction on August 31 for control rod drive exercises and main turbine valve testing. The unit attained rated thermal power later on September 1. Shift reduced load to approximately 825 GMWe (-2540 CMWT) on September 7 to perform control rod drive exercises. The unit was returned to rated thermal power on September 8. Shift reduced load to approximately 850 GMWe (-2650 CMWT) on September 15 to perform control rod drive exercises. The unit was returned to rated therma.l power on September 16. Shift reduced load to approximately 850 GMWe (-2650 CMWT) on September 21 to perform control rod drive exercises. The unit was returned to rated thermal power on September 22. Shift reduced load to approximately 515 GMWe (-1770 CMWT) on September 27 to perform a control rod sequence exchange, main turbine valve testing, and control rod drive exercises. Inspection and maintenance activities were also performed in the condenser bay while at reduced load. Shift began power ascension on September 28 and the unit attained rated thermal power on September 29. Shift reduced load to approximately 840 GMWe (-2590 CMWT) on September 30 to perform a rod pattern adjustment. The unit was returned to rated thermal power later the same day. Shift maintained unit operation at rated thermal power for the remainder of the month.
Plant Hatch Unit 2 Monthly Operating Report September 2002 Table of Contents Page Operating Data Report E2-1 Unit Shutdowns and Power Reductions E2-2 E2-2a, 2b
OPERATING DATA REPORT Docket No.:
Unit Name:
Date:
Completed By:
Telephone:
50-366 E. I. Hatch Unit 2 October 2, 2002 S. B. Rogers (912) 366-2000 x2279 Operating Status
- 1. Reporting Period:
- 2. Design Electrical Rating (Net MWe):
- 3. Maximum Dependable Capacity (Net MWe):
SEPTEMBER 2002 894 870 This Month
- 4. Number of Hours Reactor Was Critical:
- 5. Hours Generator On Line:
- 6. Unit Reserve Shutdown Hours:
- 7. Net Electrical Energy Generated:
720.0 720.0 0.0 607,799 Year To Date 6,355.6 6,335.8 0.0 5,496,054 Cumulative 164,458.2 160,110.9 0.0 118,690,670 CHALLENGES TO MAIN STEAM SAFETY/ RELIEF VALVES E2-1 Date Tag No.
Event Description
"(YYMMDD)
No challenges this month.
UNIT SHUTDOWNS Docket No.:
Unit Name:
Date:
Completed By:
Telephone:
50-366 E. I. Hatch Unit 2 October 2, 2002 S. B. Rogers (912) 366-2000 x2279 SEPTEMBER 2002 Type Method of Date F Forced Duration Shutting Cause/Corrective Actions No.
(YYMMDD)
S Scheduled (Hours)
Reason (1)
Down (2)
Comments No unit shutdowns occurred this month.
(1) Reason:
(2) METHOD A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Trip/Scram C-Refueling 3-Automatic Trip/Scram D-Regulatory Restriction 4-Continuation E-Operator Training/License Examination 5-Other (Explain)
F-Administrative G-Operational Error (Explain)
H-Other (Explain)
CAUSE/CORRECTIVE ACTION/COMMENTS:
NARRATIVE REPORT E2-2a Reporting Period:
Unit 2 began the month of September operating at rated thermal power. Shift reduced load to approximately 870 GMWe (-2650 CMWT) on September 1 to perform control rod drive exercises. The unit was returned to rated thermal power on September 2. Shift reduced load to approximately 560 GMWe (-1795 CMWT) on September 6 to perform a control rod sequence exchange, scram time testing, turbine control valve testing, and control rod drive exercises. Maintenance activities were also performed in the condenser bay while at reduced load. Shift began power ascension on September 7 and the unit attained rated thermal power on September 9.
Shift later reduced load to approximately 875 GMWe (-2650 CMWT) on September 9 to perform a rod pattern adjustment. The unit was returned to rated thermal power on September 10. Shift reduced load to approximately 890 GMWe (-2705 CMWT) on September 14 to perform turbine stop valve testing. Shift further reduced load to approximately 870 GMWe (-2650 CMWT) to perform control rod drive exercises. The unit was returned to rated thermal power on September 15. Shift reduced load to approximately 865 GMWe (-2650 CMWT) on September 22 to perform control rod drive exercises. The unit was returned to rated thermal power on September 23. Shift reduced load to approximately 860 GMWe (-2650 CMWT) on September 29 to perform control rod drive exercises. The unit was returned to rated thermal power on September 30.
(continued on page E2-2b)
UNIT SHUTDOWNS Docket No.:
50-366 Unit Name:
E. I. Hatch Unit 2 Date:
October 2, 2002 Completed By: S. B. Rogers Telephone:
(912) 366-2000 x2279 Reporting Period:
SEPTEMBER 2002 Type Method of Date F Forced Duration Shutting Cause/Corrective Actions No.
(YYMMDD)
S Scheduled (Hours) Reason (1)
Down (2)
Comments No unit shutdowns occurred this month.
(1) Reason:
(2) METHOD A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Trip/Scram C-Refueling 3-Automatic Trip/Scram D-Regulatory Restriction 4-Continuation E-Operator Training/License Examination 5-Other F-Administrative G-Operational Error (Explain)
H-Other (Explain)
CAUSE/CORRECTIVE ACTION/COMMENTS:
NARRATIVE REPORT E2-2b The unit experienced a trip of the "A" Reactor Recirculation Motor Generator (M-G) Set on September 30. Reactor power immediately decreased and stabilized at approximately 70% of rated thermal. Shift further reduced power to approximately 58% of rated thermal, per plant procedure, for operation with only one reactor recirculation pump in service. Investigation revealed the "A" M-G Set tripped on low oil pressure when a filter in the oil system began to clog. The oil filters were replaced. Shift reduced power to approximately 36% of rated thermal and restarted the "A" M-G Set. Plans were subsequently made to change the oil filters on the "B" Reactor Recirculation Motor Generator (M-G) Set. Contingency actions were developed and discussed with involved personnel in anticipation of the "B" M-G Set tripping during replacement of the oil filters. The "B" M-G Set tripped on low oil pressure while valving out one of the oil filters. Reactor power immediately decreased to approximately 33% of rated thermal.
The oil filters were replaced and Shift restarted the "B" M-G Set. Shift began power ascension later on September 30. The unit was operating at approximately 95% of rated thermal power, with the power ascension still in progress, at the end of this reporting period.