ML041000173
| ML041000173 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 04/07/2004 |
| From: | Sumner H Southern Nuclear Operating Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| NL-04-0541 | |
| Download: ML041000173 (8) | |
Text
H. L Sumner, Jr.
Vice President Hatch Project Southern Nuclear Operating Company, Inc.
Post Office Box 1295 Birmingham, Alabama 35201 Tel 205.992.7279 SOUTHERNAWhuk COMPANY Energy to Serve YourWorld' NL-04-0541 April 7, 2004 Docket Nos.:
50-321 50-366 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001 Edwin 1. Hatch Nuclear Plant Monthly Operating Reports Ladies and Gentlemen:
Enclosed are the March 2004 Monthly Operating Reports as required by section 5.6.4 of the Technical Specifications.
If you have any questions, please advise.
Sincerely, H. L. Sumner, Jr.
HLS/IL/daj
Enclosures:
El - HNP Unit I Monthly Operating Report E2 - HNP Unit 2 Monthly Operating Report cc:
Southern Nuclear Onerating Company Mr. J. B. Beasley, Jr., Executive Vice President Mr. G. R. Frederick, General Manager - Plant Hatch RTYPE: CHAO2.004 U. S. Nuclear Regulatory Commission Mr. L. A. Reyes, Regional Administrator Mr. C. Gratton, NRR Project Manager - Hatch Mr. D. S. Simpkins, Senior Resident Inspector - Hatch
.-2N
Enclosure I Plant Hatch Unit I Monthly Operating Report March 2004 Table of Contents Page Operating Data Report El-I Unit Shutdowns El-2a & El-2b
OPERATING DATA REPORT Docket No.:
50-321 Unit Name:
E. l. Hatch Unit 1 Date:
April 1, 2004 Completed By:
S. B. Rogers Telephone:
(912) 366-2000 x2279 Operatina Status
- 1. Reporting Period:
- 2. Design Electrical Rating (Net MWe):
- 3. Maximum Dependable Capacity (Net MWe):
MARCH 2004 870 856 This Month
- 4. Number of Hours Reactor Was Critical:
- 5. Hours Generator On Line:
- 6. Unit Reserve Shutdown Hours:
- 7. Net Electrical Energy Generated:
462.6 390.4 0.0 260,187 Year To Date 1,519.1 1,446.4 0.0 1,110,826 Cumulative 200,392.0 194,357.2 0.0 142,788,995 CHALLENGES TO MAIN STEAM SAFETY I RELIEF VALVES Date Tag No.
Event Description (YYMMDD) I I
No challenges this month.
El-1
UNIT SHUTDOWNS Docket No.:
Unit Name:
Date:
Completed By:
Telephone:
50-321 E. l. Hatch Unit I April 1,2004 S. B. Rogers (912) 366-2000 x2279 Reporting Period:
MARCH 2004 Type Method of Date F: Forced Duration Shutting Cause/Corrective Actions No.
l(YMMOD)
S: Schedded (Hours)
Reason (1)
Down (2)
Comments04-001 040214 S
329.8 C
4 The 21st Refueling Outage continued.04-002 040314 F
7.5 H
5 Shift manually tripped the main turbine. (see below)04-003 040315 F
7.7 H
5 Shift manually tripped the main turbine. (see below)04-004 040317 F
8.6 H
5 Shift manually tripped the main turbine. (see below)
(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:
Events Both low pressure turbine rotors along with new seals and packings were replaced during the refueling 04-002 outage. These were of a different design than the ones removed. The turbine required a "break-in"04-003 period after tying the unit to the grid. The unit was tied to the grid and the turbine was manually tripped 04-004 three times due to increasing vibration during this "break-in" period. The unit was re-tied to the grid following the third manual trip and was slowly increased to maximum operating power.
NARRATIVE REPORT Activities associated with the 21st Refueling Outage continued Into the month of March. Shift began fuel shuffle on March 1 and the shuffle was completed on March 5. Shift began withdrawing control rods for unit startup on March 12 and brought the reactor critical later the same day. Shift tied the main generator to the grid on March 14, then manually tripped the main turbine twenty five minutes later due to increasing vibration, (see description of event 04-002 above for details). Shift tied the main generator to the grid on March 15 and manually tripped the main turbine later the same day due to increasing vibration, (see description of event 04-003 above for details). Shift re-tied the main generator to the grid on March 15 and began a slow power ascension. The unit attained approximately 260 GMWe
(-935 CMWV) on March 17. Shift later reduced load on March 17 due to increasing turbine vibration and manually tripped the main turbine at approximately 100 GMWe, (see description of event 04-004 above for details). Shift continued to reduce reactor power to approximately 440 CMWT following the turbine trip.
(continued on page EI-2b)
El-2a
UNIT SHUTDOWNS Docket No.:
Unit Name:
Date:
Completed By:
Telephone:
50-321 E. l. Hatch Unit 1 April 1, 2004 S. B. Rogers (912) 366-2000 x2279 Reporting Period:
MARCH 2004 Type Method of Date F: Fored Duration Shutting Cause/Corrective Actions No.
(YYMMDD)
S: Sceduled (Hours)
Reason (1) Down (2)
Comments See page El-2a.
(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 U
Shift re-tied the main generator to the grid on March 17 and began power ascension. The unit attained approximately 300 GMWe (-1040 CMWT) on March 19. Shift reduced load to approximately 200 GMWe (-730 CMWM) later the same day and performed a rod pattern adjustment. Shift resumed power ascension and the unit attained approximately 820 GMWe (-2495 CMWT) on March 20. Shift reduced load to approximately 665 GMWe (-2020 CMWT) on March 21 and performed a rod pattern adjustment. Shift resumed power ascension and the unit attained the maximum operating power (MOP) of 2763 CMWT on March 22. Shift reduced load to approximately 770 GMWe (-2325 CMWT) later on March 22 and performed a rod pattern adjustment. The unit was returned to MOP on March 23. Shift reduced load to approximately 870 GMWe (-2635 CMWV) on March 27 to perform control rod drive exercises and main turbine valve testing. The unit was returned to MOP on March 28. Shift reduced load to approximately 845 GMWe (-2545 CMWT) on March 29 after power was lost to the fans on the Helper Cooling Tower. The loss of power resulted from a fire on a power pole outside the protected area. Power was restored to the fans and the unit was returned to MOP later the same day. Shift maintained the unit at maximum operating power for the remainder of the month.
E1-2b Plant Hatch Unit 2 Monthly Operating Report March 2004 Table of Contents Page Operating Data Report E2-1 Unit Shutdowns E2-2
OPERATING DATA REPORT Docket No.:
50-366 Unit Name:
E. l. Hatch Unit 2 Date:
April 1, 2004 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):
MARCH 2004 908 883 This Month Year To Date Cumulative
- 4. Number of Hours Reactor Was Critical:
- 5. Hours Generator On Line:
- 6. Unit Reserve Shutdown Hours:
- 7. Net Electrical Energy Generated:
744.0 744.0 0.0 662,680 2,184.0 2,184.0 0.0 1,941,693 176,944.9 172,556.5 0.0 129,522,105 CHALLENGES TO MAIN STEAM SAFETY I RELIEF VALVES Date Tag No.
Event Description (YYMMDD) I1 No challenges this month.
I I
E2-1
UNIT SHUTDOWNS Docket No.:
Unit Name:
Date:
Completed By:
Telephone:
50-366 E. l. Hatch Unit 2 April 1,2004 S. B. Rogers (912) 366-2000 x2279 Reporting Period:
MARCH 2004 Type Method of Date F: Forced Duration Shutting Cause/Corrective Actions No.
(YMMDD)
S: S cedded (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)
CAUSEICORRECTIVE ACTION/COMMENTS:
NARRATIVE REPORT Unit 2 began the month of March operating at approximately 93.5% of rated thermal power. The unit was at reduced load to facilitate control rod drive exercises and main turbine valve testing. The unit was returned to the maximum operating power (MOP) of 2777 CMWT on March 1. Shift began reducing load to approximately 845 GMWe
(-2495 CMWT) on March 7 to perform control rod drive exercises and a rod pattern adjustment. The unit was returned to MOP on March 8. Shift reduced load to approximately 875 GMWe (-2635 CMWT) on March 14 to perform control rod drive exercises. The unit was returned to MOP on March 15. Shift reduced load to approximately 875 GMWe (-2635 CMWT) on March 21 to perform control rod drive exercises. The unit was returned to MOP on March 22. Shift reduced load to approximately 875 GMWe (-2635 CMWT) on March 28 to perform control rod drive exercises and main turbine valve testing. The unit was returned to MOP on March 29. Shift reduced load to approximately 860 GMWe (-2550 CMWT) on March 29 after power was lost to the fans on the Helper Cooling Tower. The loss of power resulted from a fire on a power pole outside the protected area. Power was restored to the fans and the unit was returned to MOP later the same day. Shift maintained the unit at maximum operating power for the remainder of the month.
E2-2