ML20073E926

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Monthly Operating Repts for Feb 1983
ML20073E926
Person / Time
Site: North Anna  Dominion icon.png
Issue date: 03/01/1983
From: Schmitendorf G
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML20073E921 List:
References
NUDOCS 8304150391
Download: ML20073E926 (9)
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VIRGINIA ELECTRIC AND POWER COMPANY i

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NORTH ANNA POWER STATION MONTHLY OPERATING REPORT i MONTH February YEAR 1983 APPROVED:

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, 8304150391 830315 PDR ADDCK 05000338 R PDR

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-338 UNIT NA-1 DATE 03-01-83 COMPLETED BY G. Schmitendorf TELEPHONE 703-894-5151X2502 MONTH February DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 0 17 0 2 0 18 0 3 0 19 0 4 0 20 0 5 0 21 0 6 0 22 0 7 0 23 0 8 0 24 0 9 0 25 0 10 0 26 0 11 0 27 0 12 0 28 0 13 0 29 14 0 30 15 0 31 16 0 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.

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OPERATING DATA REPORT DOCKET NO. 50-338

, DATE 03-01-83 ELE ONE ( b3 84 5 . 02:

OPERATING STATUS Notes

1. Unit Name: North Anna 1
2. Reporting Period: February 1983
3. Licensed Thermal Power (MWt): 2775
4. Nameplate Rating (Gross MWe): 947
5. Design Electrical Rating (Net NWe): 907
6. Maximum Dependable Capacity (Gross MWe): 918
7. Maximum Dependable Capacity (Net MWe): 865
8. If Changes occur in Capacity Ratings (Items No. 3 thru 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 Yr.-to-Date Cumulative
11. Hours In Reporting Period 672 _

1,416 ,

41,497

12. Number of Hours Reactor Was Critical 0 0 27,123
13. Reactor Reserve Shutdown Hours 0 0 1,998.1
14. Hours Generator On-Line 0 ___ 0 26,382.2
15. Unit Reserve Shutdown Hours 0 0 0
16. Gross Thermal Energy Generated (MWH) 0 0 68,259,35a
17. Gross Electrical Energy Generated (MWH) 0 0 21,784,532
18. Net Electrical Energy Generat,ed (MWH) 0 0 20,520,733
19. Unit Service Factor 0 0 63.6

! 20. Unit Availability Factor 0 0 63.6

, 21. Unit Capacity Factor (Using MDC Net) 0 0 57.2

22. Unit Capacity Factor (Using DER Net) 0 0 54.5
23. Unit Forced Outage Rate 100.0 100.0 100.0
24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

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25. If Shut Down At End Of Report Period, Estimated Date of Startup: 03-07-83
26. Units In Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION 4

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i UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-338 UNIT NAME North Anna 1 DATE 03-01-83 REPORT MONTH February COMPLETED BY G. D. Schmitendorf TELEPHONE (703) 894-5151 X25Q2 Type Duration Reason2 l

No. Date Method of Licensee System Component cause & Corrective (Hours) Shutting 3

vent de 4

Code 5

Action to .

Down Reactor Report # Prevent Recurrence 82-12 821205 F 672 A 3 82-85 SF INSTRU Replacement main generator has been installed. The main trans-formers are being replaced. ,

a 1 2 3 4 F: Forced Reason: Method: Exhibit F - Instructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram. Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Restriction 4-Continuations (NUREG-0161)

E-Operator Training & License Examination 5-Load Reduction F-Administrative 9-Other G-Operational Error (Explain)

H-Other (Explain) Exhibit H - Same Source

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P Page 1 of 1 UNIT SHUTDOWN AND POWER REDUCTIONS EXPLANATION SHEET DOCKET NO. 50-338 REPORT MONTH February UNIT NAME NA-1 YEAR 1983 DATE 03-01-83 COMPLETED BY G. D. Schmitendorf 2

NO ENTRIES THIS MONTH i

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-339 UNIT NA-2 DATE 03-01-83 COMPLETED BY G. Schmitendor TELEPHONE 703-894-5151X2502 MONTH February t

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER IIVEL (MWe-Net) (MWe-Net) 1 867 17 866 2 868 18 869 3 868 19 864 4 868 20 868 5 865 21 864 6 855 22 864

! 7 865 23 866 8 867 24 868 9 866 25 863 10 866 26 863 11 867 27 533 12 864 28 0 13 857 29 14 865 30 15 862 31 16 859 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.

OPERATING DATA REPORT

, DOCKET NO. 50-339 DATE 03-01-83 COMPLETED BY G. D. Schmitendorf TELEPHONE (703) 894-5151 X2502 OPERATING STATUS Notes

1. Unit Name: North Anna 2
2. Reporting Period: February 1983
3. Licensed Thermal Power (MWt): 2775
4. Nameplate Rating (Gross MWe): 947
5. Design Electrical Rating (Net MWe): 907
6. Maximum Dependable Capacity (Gross MWe): 939
7. Maximum Dependable Capacity (Net MWe): 890
8. If Changes Occur in Capacity Ratings (Items No. 3 thru 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 Yr.-to-Date Cumulative
11. Hours In Reporting Period 672 1,416 19,368
12. Number of Hours Reactor Was Critical 638. 8 1,332.1 13,835.2
13. Reactor Reserve Shutdown Hours 33.2 129.1 2,150.9
14. Hours Generator On-Line 638.8 1,286.9 13,739.6
15. Unit Reserve Shutdown Hours 0 0 0
16. Gross Thermal Energy Generated (MWH) 1,773,633 3,321,345 35,047,365
17. Gross Electrical Energy Generated (MWH) 581,595 1,089,616 11,678,912
18. Net Electrical Energy Generated (MWH) 552,561 1,031,959 11,081,577
19. Unit Service Factor 95.1 90.9 ~~

70.9

20. Unit Availability Factor 95.1 90.9 70.9
21. Unit Capacity Factor (Using MDC Net) 92.4 81.9 64.3
22. Unit Capacity Factor (Using DER Net) 90.7 80.4 63.1
23. Unit Forced Outage Rate 4.9 9.1 19.1
24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

Refueling Outage 04-01-83 thru 05-13-83

25. If Shut Down At End Of Report Period, Estimated Date of Startup: 03-01-83
26. Units In Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-339

.i UNIT NAME North Anna 2 DATE 03-01-83 REPORT MONTH February COMPLETED BY G. D. Schmitendorf

j TELEPHONE (703) 894-5151 X2502 Type Duration Reason 2 l

No. Date Method of Licensee System Component Cause & Corrective (Hours) Shutting 3

  • 4 Code 5

Action to a Down Reactor Report # Prevent Recurrence 83-05 830227 F 33.2 A 3 NA NA NA Automatic Reactor Trip due to i

Steam Flow-Feed Flow Mismatch coincident with Low Level "B" S/G. Control Air Line to "B" ..

Main Feedwater Regulating Valve sheared causing the trip condit-ions to occur.

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1 2 3 4 F: Forced Reason: Method: Exhibit F - Instructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data 1 L-Maintenance or Test 2-Manual Scram. Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Restriction 4-Continuations (NUREG-0161)

E-Operator Training & License Examination 5-Load Reduction F-Administrative 9-Other

, G-Operational Error (Explain)

H-Other (Explain) Exhibit H - Same Source ,

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Page 1 of 1 UNIT SHUTDOWN AND POWER REDUCTIONS l

EXPLANATION SHEET DOCKET NO. 50-339 REPORT MONTH February UNIT NAME NA-2 YEAR 1983 DATE 03-01-83 COMPLETED BY G. D. Schmitendorf I

l 83-05 (A) (3) At 1444 on February 27, 1983 with the unit at 100% an Automatic Reactor Trip occurred. The trip signal was Steam Flow-Feed Flow mismatch coincident with Low Steam Generator Level. The cause for the secondary coolant oscillation and subsequent reactor trip was due to the closing of "B" Main Feedwater Regulating Valve upon loss of air to the valve when the air supply line sheared. Subsequent to this event the air supply tubing to each feed regulating valve was replaced. The "B" Main Feedwater Regulating Valve air supply line sheared at the Gyrolock fitting.

It is suspected that fatigue failure of the tubing caused the shear. As of 2400 February 28, 1983 the unit was stable in Mode 3 (Hot Standby) with a reactor start-up ready to commence.

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