NRC-05-0001, December 2004 Monthly Operating Report for Fermi 2

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December 2004 Monthly Operating Report for Fermi 2
ML050190204
Person / Time
Site: Fermi DTE Energy icon.png
Issue date: 01/12/2005
From: Peterson N
Detroit Edison
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
GL-97-002, NRC-05-0001
Download: ML050190204 (3)
v • d • e


Text

Fermi 2 6400 North Dixie Hwy., Newport, Ml 48166 Detroit Edison Generic Letter 97-02 January 12, 2005 NRC-05-0001 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington D C 20555

Reference:

Fermi 2 NRC Docket No. 50-341 NRC Operating License No. NPF-43

Subject:

Monthly Operating Status Report for December 2004 Enclosed for your information and use is the Fermi 2 Monthly Operating Status Report for December 2004. This report includes the Operating Data Report and Summary of Unit Shutdowns identified in NRC Generic Letter 97-02 and Fermi 2 Technical Specification 5.6.4.

Should you have any questions or require additional information, please contact me at (734) 586-4258.

Sincerel, Norman K. Peterson Manager - Nuclear Licensing Enclosure cc: R. J. Aben, Jr.

D. P. Beaulieu E. R. Duncan M. V. Yudasz, Jr.

NRC Resident Office Regional Administrator, Region m Region m A DTE Energy Company

OPERATING DATA REPORT DOCKET NO. 50-341 UNIT NAME Fermi 2 DATE Januarv 12. 2005 COMPLETED BY Kevin Burke TELEPHONE (734) 586-5148 REPORTING PERIOD: December 2004

1. Design Electrical Rating (MWe-Net) 1,150.00
2. Maximum Dependable Capacity (MWe-Net) 1,089.00 This Month Year-to-Date Cumulative
3. Number of Hours the Reactor Was Critical 689.65 7,905 115.801
4. Number of Hours Generator On-line 609.80 7,766 111,775
5. Reserve Shutdown Hours 0.00 0.00 0.00
6. Net Electrical Energy Generated (MWH) 639.135 8,453,110 113,076,678 UNIT SHUTDOWNS No. Date Type Duration Reason Method of Cause and Corrective Action Comments F: Forced (Hours) (1) Shutting S: Scheduled Down (2) 04-03 12/1/2004 S 57.8 C 4 Planned shutdown for Refueling Outage (RFO10).

04-04 12/4/2004 F 76.4 A 3 Automatic Main Turbine Trip and Reactor Scram due to Generator Automatic Voltage Regulator (AVR) failure. Electronic module communication errors caused the AVR failure. Modules have been replaced and software changes implemented.

SUMMARY

Following completion of RFO10 (which began on November 5, 2004), the plant achieved criticality at 1944 hours0.0225 days <br />0.54 hours <br />0.00321 weeks <br />7.39692e-4 months <br /> on December 1, 2004 and the Main Turbine Generator was synchronized at 0947 hours0.011 days <br />0.263 hours <br />0.00157 weeks <br />3.603335e-4 months <br /> on December 3, 2004. On December 4, 2004 at 0417 hours0.00483 days <br />0.116 hours <br />6.894841e-4 weeks <br />1.586685e-4 months <br />, during power ascension, the Main Turbine tripped and the reactor subsequently scrammed from approximately 60 percent power due to a Generator Automatic Voltage Regulator (AVR) failure. Following repairs to the AVR, the plant was restarted and achieved criticality at 1454 hours0.0168 days <br />0.404 hours <br />0.0024 weeks <br />5.53247e-4 months <br /> on December 5, 2004 and the Main Turbine Generator was synchronized at 0842 hours0.00975 days <br />0.234 hours <br />0.00139 weeks <br />3.20381e-4 months <br /> on December 7, 2004. The plant was returned to full power on December 9, 2004 at 0355 hours0.00411 days <br />0.0986 hours <br />5.869709e-4 weeks <br />1.350775e-4 months <br />. On December 9, 2004 at 0627 hours0.00726 days <br />0.174 hours <br />0.00104 weeks <br />2.385735e-4 months <br />, power was reduced to 93 percent for investigation of higher than expected reactor pressure, and at 2200 hours0.0255 days <br />0.611 hours <br />0.00364 weeks <br />8.371e-4 months <br />, power was further reduced to 75 percent for Control Rod pattern adjustment. The plant was returned to full power at 0328 hours0.0038 days <br />0.0911 hours <br />5.42328e-4 weeks <br />1.24804e-4 months <br /> on December 10, 2004. On December 15, 2004 at 1310 hours0.0152 days <br />0.364 hours <br />0.00217 weeks <br />4.98455e-4 months <br />, power was reduced to 95 percent for Recirculation System control setup and at 2022 hours0.0234 days <br />0.562 hours <br />0.00334 weeks <br />7.69371e-4 months <br />, the plant was returned to full power. On December 18, 2004 at 0011 hours1.273148e-4 days <br />0.00306 hours <br />1.818783e-5 weeks <br />4.1855e-6 months <br />, power was reduced to 66 percent for Control Rod pattern adjustment and the plant was returned to full power at 1108 hours0.0128 days <br />0.308 hours <br />0.00183 weeks <br />4.21594e-4 months <br />.

(1) Reason: (2) 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 and License Examination S Other (Explain)

F Administration G Operational Error (Explain)

H Other (Explain)

Text

Fermi 2 6400 North Dixie Hwy., Newport, Ml 48166 Detroit Edison Generic Letter 97-02 January 12, 2005 NRC-05-0001 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington D C 20555

Reference:

Fermi 2 NRC Docket No. 50-341 NRC Operating License No. NPF-43

Subject:

Monthly Operating Status Report for December 2004 Enclosed for your information and use is the Fermi 2 Monthly Operating Status Report for December 2004. This report includes the Operating Data Report and Summary of Unit Shutdowns identified in NRC Generic Letter 97-02 and Fermi 2 Technical Specification 5.6.4.

Should you have any questions or require additional information, please contact me at (734) 586-4258.

Sincerel, Norman K. Peterson Manager - Nuclear Licensing Enclosure cc: R. J. Aben, Jr.

D. P. Beaulieu E. R. Duncan M. V. Yudasz, Jr.

NRC Resident Office Regional Administrator, Region m Region m A DTE Energy Company

OPERATING DATA REPORT DOCKET NO. 50-341 UNIT NAME Fermi 2 DATE Januarv 12. 2005 COMPLETED BY Kevin Burke TELEPHONE (734) 586-5148 REPORTING PERIOD: December 2004

1. Design Electrical Rating (MWe-Net) 1,150.00
2. Maximum Dependable Capacity (MWe-Net) 1,089.00 This Month Year-to-Date Cumulative
3. Number of Hours the Reactor Was Critical 689.65 7,905 115.801
4. Number of Hours Generator On-line 609.80 7,766 111,775
5. Reserve Shutdown Hours 0.00 0.00 0.00
6. Net Electrical Energy Generated (MWH) 639.135 8,453,110 113,076,678 UNIT SHUTDOWNS No. Date Type Duration Reason Method of Cause and Corrective Action Comments F: Forced (Hours) (1) Shutting S: Scheduled Down (2) 04-03 12/1/2004 S 57.8 C 4 Planned shutdown for Refueling Outage (RFO10).

04-04 12/4/2004 F 76.4 A 3 Automatic Main Turbine Trip and Reactor Scram due to Generator Automatic Voltage Regulator (AVR) failure. Electronic module communication errors caused the AVR failure. Modules have been replaced and software changes implemented.

SUMMARY

Following completion of RFO10 (which began on November 5, 2004), the plant achieved criticality at 1944 hours0.0225 days <br />0.54 hours <br />0.00321 weeks <br />7.39692e-4 months <br /> on December 1, 2004 and the Main Turbine Generator was synchronized at 0947 hours0.011 days <br />0.263 hours <br />0.00157 weeks <br />3.603335e-4 months <br /> on December 3, 2004. On December 4, 2004 at 0417 hours0.00483 days <br />0.116 hours <br />6.894841e-4 weeks <br />1.586685e-4 months <br />, during power ascension, the Main Turbine tripped and the reactor subsequently scrammed from approximately 60 percent power due to a Generator Automatic Voltage Regulator (AVR) failure. Following repairs to the AVR, the plant was restarted and achieved criticality at 1454 hours0.0168 days <br />0.404 hours <br />0.0024 weeks <br />5.53247e-4 months <br /> on December 5, 2004 and the Main Turbine Generator was synchronized at 0842 hours0.00975 days <br />0.234 hours <br />0.00139 weeks <br />3.20381e-4 months <br /> on December 7, 2004. The plant was returned to full power on December 9, 2004 at 0355 hours0.00411 days <br />0.0986 hours <br />5.869709e-4 weeks <br />1.350775e-4 months <br />. On December 9, 2004 at 0627 hours0.00726 days <br />0.174 hours <br />0.00104 weeks <br />2.385735e-4 months <br />, power was reduced to 93 percent for investigation of higher than expected reactor pressure, and at 2200 hours0.0255 days <br />0.611 hours <br />0.00364 weeks <br />8.371e-4 months <br />, power was further reduced to 75 percent for Control Rod pattern adjustment. The plant was returned to full power at 0328 hours0.0038 days <br />0.0911 hours <br />5.42328e-4 weeks <br />1.24804e-4 months <br /> on December 10, 2004. On December 15, 2004 at 1310 hours0.0152 days <br />0.364 hours <br />0.00217 weeks <br />4.98455e-4 months <br />, power was reduced to 95 percent for Recirculation System control setup and at 2022 hours0.0234 days <br />0.562 hours <br />0.00334 weeks <br />7.69371e-4 months <br />, the plant was returned to full power. On December 18, 2004 at 0011 hours1.273148e-4 days <br />0.00306 hours <br />1.818783e-5 weeks <br />4.1855e-6 months <br />, power was reduced to 66 percent for Control Rod pattern adjustment and the plant was returned to full power at 1108 hours0.0128 days <br />0.308 hours <br />0.00183 weeks <br />4.21594e-4 months <br />.

(1) Reason: (2) 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 and License Examination S Other (Explain)

F Administration G Operational Error (Explain)

H Other (Explain)

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