ML051090346

March 2005 Monthly Operating Report for Nine Mile Point Unit 1 and 2

ML051090346
Person / Time
Site:	Nine Mile Point
Issue date:	04/06/2005
From:	O'Connor T Constellation Energy Group
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NMP1L 1941
Download: ML051090346 (3)

Text

I, .-

O Constellation Energy P.O. Box 63 Lycoming, NY 13093 Nine Mile Point Nuclear Station April 6, 2005 NMPIL 1941 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001

SUBJECT:

Nine Mile Point Unit 1 Nine Mile Point Unit 2 Docket No. 50-220 Docket No. 50-410 License No. DPR-63 License No. NPF-69 Monthly Operating Report for March 2005 Gentlemen:

Submitted herewith are the Operating Data Report, Unit Shutdowns, id a Narrative of Operating Experience for March 2005 for the Nine Mile Point Nu Station Unit 1 and Unit 2.

Very truly yours, fihy J. O'Connor General Manager TJO/RF/sac Attachments cc: Mr. S. J. Collins, NRC Regional Administrator, Region I Mr. G. K. Hunegs, NRC Senior Resident Inspector 0-11

OPERATING DATA REPORT DOCKET NO. 50-220 UNIT NAME Nine Mile Point I DATE April 09, 25 COMPLETED BY Bruce L Eastman TELEPHONE 315-349-2559 REPORTING PERIC March 2005

1. Design Electrical Rating 613.00

2. Maximum Dependable Capacity (MWe-Net) 565.00 This Month Yr-to-Date Cumulative

3. Number of Hours the Reactor was Critical 438.37 1,854.37 223,017.29

4. Number of Hours Generator On-line 425.08 1,841.08 218,339.05

5. Reserve Shutdown Hours 0.00 0.00 20.40

6. Net Electrical Energy Generated (MWHrs) 256,969.00 1,132,187.00 122,417,152.0 UNIT SHUTDOWNS Type Method of F: Forced Duration Shutting Cause & Corrective Action No. Date S: Scheduled (Hours) Reason I Down 2 Comments 1 03/07/2005 F 54.93 A 3 The reactor scrammed due to a turbine trip.

The turbine trip was in response to a spurious high level signal on the Moisture Separator Drain Tank 122 level switch caused by two corroded wires forming a conductive path in a local junction box.

2 03/21/2005 S 263.98 C I1 The unit was shutdown for RFO #18.

SUMMARY

The unit operated during the month of March 2005 with a Net Electrical Design capacity factor of 56.3 percent. On March 7, 2005 at 0437 hours0.00506 days <br />0.121 hours <br />7.225529e-4 weeks <br />1.662785e-4 months <br /> the unit scrammed due to a turbine trip. The turbine trip was in response to a spurious high level signal on the Moisture Separator Drain Tank 122 level switch caused by two corroded wires forming a conductive path in a local junction box. The unit was returned to service on March 9, 2005 at 1133 hours0.0131 days <br />0.315 hours <br />0.00187 weeks <br />4.311065e-4 months <br />.

Power was returned to rated at 2315 hours0.0268 days <br />0.643 hours <br />0.00383 weeks <br />8.808575e-4 months <br /> on the same day. Over the next 26 hours3.009259e-4 days <br />0.00722 hours <br />4.298942e-5 weeks <br />9.893e-6 months <br /> control rod pattern adjustments were required to compensate for the xenon transient. Steady state rated power was reached at 0113 hours0.00131 days <br />0.0314 hours <br />1.868386e-4 weeks <br />4.29965e-5 months <br /> on March 11, 2005. On March 20 2005 the unit commenced a planned shutdown for refuel outage #18. The unit was removed from the grid at 0001 hours1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> on March 21, 2005 with all rods fully inserted at 0310 on the same day.

I 2 Reason: Method:

A Equipment Failure (Explain) I 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 Administration G Operational Error (Explain)

H Other (Explain)

Page 1 of 2

I- .

'7 OPERATING DATA REPORT DOCKET NO. 50-410 UNIT NAME Nine Mile Point 2 DATE April 09,2005 COMPLETED BY T. P. McMahon TELEPHONE 315-349-4045 REPORTING PERIOD: March 2005

1. Design Electrical Rating 1,143.30

2. Maximum Dependable Capacity (MWe-Net) 1,119.80 This Month Yr-to-Date Cumulative

3. Number of Hours the Reactor was Critical 744.00 2,160.00 121,250.72

4. Number of Hours Generator On-line 744.00 2,160.00 118,253.82

5. Reserve Shutdown Hours 0.00 0.00 0.00

6. Net Electrical Energy Generated (MWHrs) 847,429.06 2,481,403.07 125,167,585.7 UNIT SHUTDOWNS Type Method of F: Forced Duration Reason Shutting Cause & Corrective Action No. Date S: Scheduled (Hours) Down 2 Comments

SUMMARY

Nine Mile Point Unit Two operated with a capacity factor (MDC) of 101.72% and an availability factor of 100% for the month of March 2005. On March 19, 2005 at 0700 hours0.0081 days <br />0.194 hours <br />0.00116 weeks <br />2.6635e-4 months <br />, Operations commenced a downpower to approximately 55% power for planned maintenance activities (feed pump swap, control rod SCRAM timing, control rod channel bow testing and control rod sequence exchange). After completion of these activities the unit was returned to full power at 1517 hours0.0176 days <br />0.421 hours <br />0.00251 weeks <br />5.772185e-4 months <br /> on March 20,2005. On March 25 2005 at 1000 hours0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br />, Operations commenced a downpower to approximately 55% power for a planned feed pump swap. After completion of this feed pump swap the unit was returned to full power at 2230 hours0.0258 days <br />0.619 hours <br />0.00369 weeks <br />8.48515e-4 months <br /> the same day. There were no challenges to the safety relief valves during this reporting period.

I 2 Reason: Method:

A Equipment Failure (Explain) I Manual B Maintenance or Test 2 Manual Trip/Scram C Refueling 3 Automatic TriplScram D Regulatory Restriction 4 Continuation E Operator Training & License Examination 5 Other (Explain)

F Administration G Operational Error (Explain)

H Other (Explain)

Page 2 of 2