ML020420268

December 2001 Monthly Operating Report for North Anna Power Station, Units 1 and 2

ML020420268
Person / Time
Site:	North Anna
Issue date:	01/11/2002
From:	Heacock D Virginia Electric & Power Co (VEPCO)
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
02-034, NAPS/JHL
Download: ML020420268 (10)

Text

VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 January 11,2002 United States Nuclear Regulatory Commission Serial No.02-034 Attention: Document Control Desk NAPS/JHL Washington, D. C. 20555 Docket Nos. 50-338 50-339 License Nos. NPF-4 NPF-7 Gentlemen:

VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNIT NOS. I AND 2 MONTHLY OPERATING REPORT Enclosed is the December 2001 Monthly Operating Report for North Anna Power Station Units 1 and 2.

Very truly yours, Dock Site Vice President Enclosure Commitments made in this letter: None.

cc: U. S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta, Georgia 30303 Mr. M. J. Morgan NRC Senior Resident Inspector North Anna Power Station

VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION MONTHLY OPERATING REPORT DECEMBER 2001 Approved:

D-I ate Site Vice President Date 1.17

OPERATING DATA REPORT Docket No.: 50-338 Date: 01/04/02

Contact:

D. A. Heacock Telephone: (540) 894-2101

1. U nit N am e: ............................................................ North Anna Unit 1

2. Reporting Period: .................................................. December 2001

3. Licensed Thermal Power (MWt): .......................... 2,893

4. Nameplate Rating (Gross MW e): .......................... 979.74

5. Design Electrical Rating (Net MW e): .................... 907

6. Maximum Dependable Capacity (Gross MWe): .... 971

7. Maximum Dependable Capacity (Net MWe): ........ 925

8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report, Give Reasons:

N/A

9. Power Level To Which Restricted, If Any (Net MWe): N/A

10. Reasons For Restrictions, If Any: N/A This Month Year-To-Date Cumulative

11. Hours in Reporting Period 744.0 8,760.0 206,244.0

12. Hours Reactor Was Critical 744.0 8,028.4 166,295.8

13. Reactor Reserve Shutdown Hours 0.0 35.7 7,275.2

14. Hours Generator On-Line 744.0 8,011.3 163,029.3

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 2,151,009.2 22,108,164.3 443,430,006.9

17. Gross Electrical Energy Generated (MWH) 732,129.0 7,490,515.0 183,355,231.0

18. Net Electrical Energy Generated (MWH) 697,125.0 7,120,790.0 138,819,567.0

19. Unit Service Factor 100.0% 91.5% 79.0%

20. Unit Availability Factor 100.0% 91.5% 79.0%

21. Unit Capacity Factor (Using MDC Net) 101.3% 87.9% 75.2%

22. Unit Capacity Factor (Using DER Net) 103.3% 89.6% 74.2%

23. Unit Forced Outage Rate 0.0% 0.0% 6.9%

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each): N/A Type and duration of scheduled shutdowns are no longer provided.

(

Reference:

Letter Serial No.00-070, dated February 11, 2000)

25. If Shut Down at End of Report Period, Estimated Date of Start-up: N/A Estimated start-up dates are no longer provided.

(

Reference:

Letter Serial No.00-070, dated February 11, 2000)

26. Unit In Test Status (Prior to Commercial Operation):

FORECAST ACHIEVED INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

AVERAGE DAILY UNIT POWER LEVEL Docket No.: 50-338 Unit Name: North Anna Unit 1 Date: 01/04/02

Contact:

D. A. Heacock Telephone: (540) 894-2101 MONTH: December, 2001 Average Daily Power Level Average Daily Power Level Day (MWe - Net) Day (MWe - Net) 1 939 17 938 2 938 18 938 3 938 19 939 4 937 20 938 5 937 21 937 6 936 22 937 7 937 23 937 8 937 24 930 9 938 25 937 10 939 26 936 11 937 27 937 12 937 28 936 13 937 29 936 14 936 30 936 15 937 31 936 16 937 INSTRUCTIONS On this format, list the average daily unit power level in MWe - Net for each day in the reporting month. Compute to the nearest whole megawatt.

Docket No.: 50-338 Unit Name: North Anna Unit 1 Date: 01/04/02

Contact:

D. A. Heacock Telephone: (540) 894-2101 NORTH ANNA POWER STATION UNIT NO.: 1 MONTH: December, 2001

SUMMARY

OF OPERATING EXPERIENCE Page 1 of 1 Listed below in chronological sequence is a summary of operating experiences for this month which required load reductions or resulted in significant non-load related incidents.

Date Time Data December 1,2001 0000 Began the month in Mode 1,100% power, 986 MWe.

December 31, 2001 2400 Ended the month in Mode 1,100% power, 982 MWe.

Docket No.: 50-338 Unit Name: North Anna Unit 1 Date: 01/04/02

Contact:

D. A. Heacock Telephone: (540) 894-2101 UNIT SHUTDOWN AND POWER REDUCTION (EQUAL To OR GREATER THAN 20%)

REPORT MONTH: December, 2001 (1) (2) (3) (4) (5)

Method Report Duration of LER No. System Component Cause &

No. Date Type Hours Reason Shutting Code Code Corrective Action Down to Prevent Reactor Recurrence None during the reporting period.

(1) (2) (3)

F: Forced REASON: METHOD:

S: Scheduled A - Equipment Failure (Explain) 1 - Manual B - Maintenance or Test 2 - Manual Scram C - Refueling 3 - Automatic Scram D - Regulatory Restriction 4 - Continuations E - Operator Training & Licensing Examination 5 - Load Reduction F - Administrative 9 - Other G - Operational Error H - Other (Explain)

(4) (5)

Exhibit G - Instructions for Preparation of Data Entry Sheets Exhibit H - Same Source for Licensee Event Report (LER) File (NUREG 0161)

OPERATING DATA REPORT Docket No.: 50-339 Date: 01/04/02

Contact:

D. A. Heacock Telephone: (540) 894-2101

1. U nit N am e: ............................................................ North Anna Unit 2

2. Reporting Period: .................................................. December, 2001

3. Licensed Thermal Power (MWt): .......................... 2,893

4. Nameplate Rating (Gross MWe): .......................... 979

5. Design Electrical Rating (Net MW e): .................... 907

6. Maximum Dependable Capacity (Gross MWe): .... 963

7. Maximum Dependable Capacity (Net MWe): ........ 917

8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report, Give Reasons: N/A

9. Power Level To Which Restricted, If Any (Net MWe): N/A

10. Reasons For Restrictions, If Any: N/A This Month Year-To-Date Cumulative

11. Hours in Reporting Period 744.0 8,760.0 184,512.0

12. Hours Reactor Was Critical 367.3 6,830.7 157,450.0

13. Reactor Reserve Shutdown Hours 67.8 151.1 7,489.7

14. Hours Generator On-Line 349.1 6,778.6 156,116.4

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 982,913.9 18,844,060.8 430,513,024.0

17. Gross Electrical Energy Generated (MWH) 327,915.0 6,289,873.0 141,218,141.0

18. Net Electrical Energy Generated (MWH) 311,717.0 5,975,803.0 134,793,874.0

19. Unit Service Factor 46.9% 77.4% 84.6%

20. Unit Availability Factor 46.9% 77.4% 84.6%

21. Unit Capacity Factor (Using MDC Net) 45.7% 74.4% 81.2%

22. Unit Capacity Factor (Using DER Net) 46.2% 75.2% 80.5%

23. Unit Forced Outage Rate 12.8% 1.2% 4.2%

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each): N/A Type and duration of scheduled shutdowns are no longer provided.

(

Reference:

Letter Serial No.00-070, dated February 11, 2000)

25. If Shut Down at End of Report Period, Estimated Date of Start-up:

Estimated start-up dates are no longer provided.

(

Reference:

Letter Serial No.00-070, dated February 11, 2000)

26. Unit In Test Status (Prior to Commercial Operation):

FORECAST ACHIEVED INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

AVERAGE DAILY UNIT POWER LEVEL Docket No.: 50-339 Unit Name: North Anna Unit 2 Date: 01/04/02

Contact:

D. A. Heacock Telephone: (540) 894-2101 MONTH: December, 2001 Average Daily Power Level Average Daily Power Level Day (MWe - Net) Day (MWe - Net) 1 000 17 923 2 000 18 925 3 000 19 925 4 000 20 925 5 000 21 925 6 000 22 578 7 000 23 000 8 000 24 081 9 000 25 866 10 000 26 925 11 000 27 924 12 000 28 924 13 000 29 923 14 000 30 924 15 381 31 923 16 917 INSTRUCTIONS On this format, list the average daily unit power level in MWe - Net for each day in the reporting month. Compute to the nearest whole megawatt.

Docket No.: 50-339 Unit Name: North Anna Unit 2 Date: 01/04/02

Contact:

D. A. Heacock Telephone: (540) 894-2101 NORTH ANNA POWER STATION UNIT NO.: 2 MONTH: Debember, 2001

SUMMARY

OF OPERATING EXPERIENCE Page 1 of 1 Listed below in chronological sequence is a summary of operating experiences for the month which required load reductions or resulted in significant non-load related Date Time Data December 1, 2001 0000 Began the month in Mode 6 December 9, 2001 0252 Entered Mode 5.

December 13, 2001 2001 Entered Mode 4.

December 14, 2001 0600 Entered Mode 3.

December 15, 2001 0351 Commenced reactor startup.

December 15, 2001 0358 The Unit 2 reactor is critical.

December 15, 2001 0507 Entered Mode 1.

December 15, 2001 0749 The main generator was placed on-line.

December 15, 2001 0910 Unit 2 is at 30% power, 225 MWe.

December 16, 2001 0405 Unit 2 is at 100% power, 962 MWe.

December 22, 2001 1542 Automatic reactor trip from 100% power due to EHC power supply failure. The pressurizer PORVs lifted monentarily and immediately reseated during the transient which is not unexpected for a loss of load event.

December 24, 2001 0315 Commenced reactor startup.

December 24, 2001 0331 Entered Mode 2.

December 24, 2001 0402 Tne Unit 2 reactor is critical.

December 24, 2001 0508 Entered Mode 1.

December 24, 2001 1849 The main generator was placed on-line.

December 24, 2001 1953 Unit 2 is at 30% power, 240 MWe.

December 25, 2001 0740 Unit 2 is at 100% power, 965 MWe.

December 31, 2001 2400 Ended the month in Mode 1,100% power, 967 MWe.

Docket No.: 50-339 Unit Name: North Anna Unit 2 Date: 01/04/02

Contact:

D. A. Heacock Telephone: (540) 894-2101 UNIT SHUTDOWN AND POWER REDUCTION (EQUAL To OR GREATER THAN 20%)

REPORT MONTH: December, 2001 (1) (2) (3) (4) (5)

Method of Report Duration Shutting LER No. System Component Cause &

No Date Type Hours Reason Down Code Code Corrective Action Reactor to Prevent Recurrence N2-2001-005 S 343.8 H 1 Continuation of scheduled shutdown to inspect the reactor head.

12/22/01 F 51.1 A 3 01-005 TG RECT/IS Automatic N2-2001-006 reactor trip due to EHC power supply failure.

The diode and switch that caused the reactor trip were replaced.

(1) (2) (3)

F: Forced REASON: METHOD:

S: Scheduled A - Equipment Failure (Explain) 1 - Manual B - Maintenance or Test 2 - Manual Scram C - Refueling 3 - Automatic Scram D - Regulatory Restriction 4 - Continuations E - Operator Training &Licensing Examination 5 - Load Reduction F - Administrative 9 - Other G - Operational Error H - Other (explain)

(4) (5)

Exhibit G - Instructions for Preparation of Data Entry Sheets Exhibit H - Same Source for Licensee Event Report (LER) File (NUREG 0161)