ML20065T103

Monthly Operating Repts for Aug 1982

ML20065T103
Person / Time
Site:	North Anna
Issue date:	09/01/1982
From:	Schmitendorf G VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML20065T090	List: ML20065T088 ML20065T103
References
NUDOCS 8211020216
Download: ML20065T103 (8)

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• VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION MONTHLY OPERATING REPORT MONTH August YEAR 1982 APPROVED:

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STATION MANAWER 8211020216 820913 DR ADOCK 05000338 PDR

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-338 UNIT NA-1

. DATE 09-01-82 COMPLETED BY G. Schmitendorf TELEPHONE 703-894-5151X2502 MONTH August 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

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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 0 ,_

14 0 30 0 15 0 31 0 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.

OPERATING DATA REPORT DOCKET NO. 50-338 DATE 09-01-82 COMPLETED BY G. D. Schmitendorf '

TELEPHONE (703) 894-5151 X2502 OPERATING STATUS Notes

1. Unit Name: North Anna 1

2. Reporting Period: August 1982

3. Licensed Thermal Power (NWt): 2775

4. Nameplate Rating (Gross NWe): 947

5. Design Electrical Rating (Net MWe): 907

6. Maximum Dependable Capacity (Gross NWe): 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:

NA

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

10. Reasons For Restrictions, If Any: N/A 4

This Month Yr.-to-Date Cumulative

11. Hours In Reporting Period 744 5,831 37,152

12. Number of Hours Reactor Was Critical 0 3,129.9 26,958.2

13. Reactor Reserve Shutdown Hours 0 21.5 256.4

14. Hours Generator On-Line 0 3,022.9 26,375.9 1

15. Unit Reserve Shutdown Hours 0 0 0

16. Gross Thermal Energy Generated (MWH) 0 7,941,328 68,255,580

17. Gross Electrical Energy Generated (NWH) 0 2,537,888 21,783,410

18. Net Electrical Energy Generated (NWH) 0 2,396,973 20,519,889 c 19. Unit Service Factor 0 51.8 71.0 l 20. Unit Availability Factor 0 51.8 71.0 l

21. Unit Capacity Factor (Using MDC Net) 0 47.5 63.9 l

22. Unit Capacity Factor (Using DER Net) 0 45.3 60.9

, 23. Unit Forced Outage Rate 0 7.3 5.1 l 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: 10-21-82

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

Forecast Achieved l INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-338 UNIT NAME North Anna 1 DATE 09-01-82 REPORT MONTH August COMPLETED BY G. D. Schmitendorf TELEPHONE (703) 894-5151 X2502 l

No. Date Type Duration Reason Method of Licensee System Component Cause & Corrective (Hours) Shutting Code Code 3 .F vent Down Reactor Report #

4 5 Action to Prevent Recurrence 82-10 S 744 The scheduled refueling outage continues 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 5 G-Operational Error (Explain)

H-Other (Explain) Exhibit H - Same Source

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-339 UNIT NA-2 DATE 09-01-82 COMPLETED BY G. Schmitendorf I

TELEPHONE 703-894-5151X2502 MONTH August 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 92.5 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 0 14 0 30 93.7 _,

15 0 31 206.6 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. 50-339 DATE 09-01-82 COMPLETED BY G. D. Schmitendorf 4 TELEFHONE (703) 894-5151 X2502 4

OPERATING STATUS

Notes

1. Unit Name: North Anna 2

2. Reporting Period: August 1982

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 (het NWe): 890 i 8. If Changes Occur in Capacity Ratings.(Items No. 3 thru 7) Since Last Report, Give Reasons:

NA

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

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

11. Hours In Reporting Period 744 5,831 15,023

12. Number of Hours Reactor Was Critical 49.9 2,192.6 9,607.4

13. Reactor Reserve Shutdown Hours 185.1 358.8 1,992

14. Hours Generator On-Line 46.8 2,108.5 9,567.9

15. Unit Reserve Shutdown Hours 0 0 0

16. Gross Thermal Energy Generated (MWH) 40,396 5,112,986 23,895,827

17. Gross Electrical Energy Generated (MWH) 11,230 1,687,590 8,002,822

18. Net Electrical Energy Generated (MWH) 9,413 1,595,412 7,597,828

19. Unit Service Factor 6.3 36.2 63.7

20. Unit Availability Factor 6.3 36.2 63.7

[ 21. Unit Capacity Factor (Using MDC Net) 1.4 30.7 56.8

22. Unit Capacity Factor (Using DER Net) 1.4 30.2 55.8

23. Unit Forced Outage Rate 93.7 40.0 24.2 h 24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

a

25. If Shut Down At End Of Report Period, Estimated Date of Startup:

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

Forecast Achieved L INITIAL CRITICALITY

! INITIAL ELECTRICITY COMMERCIAL OPERATION

1

.g UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-339 UNIT NAME North Anna 2 DATE 09-01-82 REPORT MONTH August COMPLETED BY G. D. Schmitendorf TELEPHONE (703) 894-5151 X2502 No. Date Type Duration Reason Method of Licensee System Component Cause & Corrective (Hours) Shutting 3

4 *5 Action to Down Reactor Report # Prevent Recurrence 82-13 820708 F 512.1 Continued from Previous Month Repair work necessary following thermal. sleeves inspection in progress.

82-14 820822 F 185.1 A 3 NA NA NA "B" Phase Main Transformer Failure.

I 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-Reguiatory Restriction 4-Continuations (NUREG-0161)

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

H-Other (Explain) Exhibit H - Same Source

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Page 1 of 1 UNIT SHUTDOWN AND POWER REDUCTIONS EXPLANATION SHEET DOCKET NO. 50-338 a

REPORT MONTH August UNIT NAME NA-2 YEAR 1982 DATE 09-01-82

COMPLETED BY G. D. Schmitendorf 82-14 (A) (3) At 1931 on August 22, 1982 with the unit at approximately 30% power the unit was stable and maintaining a power level below 30% for secondary chemistry to come within allowable specification for power escalation. A "B" Main Transformer Differential Trip Alarm was received. This was immediately followed by a turbine trip and a reactor trip. Initial investigation indicated that an internal explosion had occurred on "B" Main Transformer. The unit was taken to Mode.3 and stabilized there. The reason for the transformer failure is still under investigation. The transformer was

, replaced with a spare and the unit returned to~ power one week after the unit trip.

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