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Monthly Operating Repts for Mar 1981
	ML20008F735
Person / Time
Site:	North Anna
Issue date:	04/06/1981
From:	Rogers L; VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	;
Shared Package
ML20008F734	List: ML20008F733; ML20008F735; ML20008F736; ML20008F737;
References
	NUDOCS 8104210560
	Download: ML20008F735 (11)
	v • d • e

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                              ,                                                MONTHLY OPERATING REPORT MONTH March                     YEAR _g]_

APPROVED:

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OPERATING DATA REPORT DOCKET NO. 50-338 DATE 04-06-81 COMPLETED BY L.L. Rogers TELEPHONE (703) 894-5151 X2510 OPERATING STATUS Notes

1. Unit Name: North Anna 1

2. Reporting Period: March 1981

3. Licensed Thermal Power (MWt): 2775

4. Nameplate Rating (Gross MWe): 947

5. Design Electrical Rating (Net HWe): 907

6. Maximum Dependable Capacity (Gross MWe): 898

7. Maximum Dependable Capacity (Net MWe): 850

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 744 2,160 24,721

12. Number of Hours Reactor Was Critical 0 0 17,973.1

13. Reactor Reserve Shutdown Hours 0 0 213.1

14. Hours Generator On-Line 0 0 17,648.1

15. Unit Reserve Shutdown Hours 0 0 0

16. Gross Thermal Energy Generated (MWH) 0 0 44,832,142

17. Gross Electrical Ener3y Generated (MWH) 0 0 14,316,912

18. Net Electrical Energy Generated (MWH) 0 0 13,485,003

19. Unit Service Factor 0 0 71.4

20. Unit Availability Factor 0 0 71.4

21. Unit Capacity Factor (Using MDC Net) 0 0 64.2

22. Unit Capacity Factor (Using DER Net) 0 0 60.1

23. Unit Forced Outage Rate 0 0 5.9

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

N/A

25. If Shut Down At End Of Report Period, Estimated Date of Startup: April 7, 1981

26. Units 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 NA-1 DATE 04-06-81 COMPLETED BY L.L. Rogers TELEPHONE 703-894-5151X2510 MONTH March 4 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY- P0hTR LEVEL (MWe-Net) (MWe-Net) 1 0 17 0 2 0 18 0 4 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 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.

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-338 UNIT NAME North Anna.1 DATE 04-06-81 REPORT MONTH HARCH COMPLETED BY L. L. RODGERS TELEPHONE (703) 894-5151 X2510 l 2 No. Date Type Duration Reason Method of Licensee System Component Cause & Corrective (Hours) Shutting 3 Event Code 4 Code 5 ACli " ' Down Reactor Report # Prevent Recurrence Shutdown 80-28 Continues through March. Duration 744 hours. i J i 1 2 3 4 F: Forced Reason: Method: Exhibit G - 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-Other (Explain) (NUREG-0161) E-Operator Training & License Examination F-Administrative _ 5 G-Operational Error (Explain) H-Other (Explain) Exhibit 1 - Same Source

OPERATING DATA REPORT DOCKET NO. 50-339 DATE 04-06-81 COMPLETED BY L.L. Rogers TELEPHONE (703) 894-5151 X2510 OPERATING STATUS Notes

1. Unit Name: North Anna 2

2. Reporting Period: March 1981

3. Licensed Thermal Power (MWt): 2775

4. Nameplate Rating (Gross MWe): 947

5. Design Electrical Rating (Net MWe): 907

6. Maximum Dependable Capacity-(Gross M7e): 917

7. Maximum Dependable Capacity (Net MWe): 870

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 744 2,160 2,592

12. Number of Hours Reactor Was. Critical 732.4 2,136 2,564.9

13. Reactor Reserve Shutdown Hours 11.6 34 314

14. Hours Generator On-Line 729.7 2,088.4 2,501.1

15. Unit Reserve Shutdown Hours 0 0 0

16. Gross Thermal Energy Generated (MWH) 1,938,261 5,520,448 6,642,961

17. Gross Electrical Energy Generated (MWH) 628,350 1,801,901 2,170,332

18. Net Electrical Energy Generated (MWH) 593,299 1,701,900 2,051,544

19. Unit Service Factor 98.1 96.7 96.5

20. Unit Availability Factor 98.1 96.7 96.5

21. Unit Capacity Factor (Using MDC Net) 91.7 90.6 91.

22. Unit Capacity Factor (Using DER Net) 87.9 86.9 87.3

23. Unit Forced Outage Rate 1.9 3.3 3.5

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

Maintenance Outage May 1, through May 11, 1981

25. If Shut Down At End Of Report Period Estimated Date of Startup: N/A

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

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

2 AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-339 UNIT NA-2 DATE 04-06-81 COMPLETED BY L.L. Rogers TELEPHONE 703-894-5151X2510 MONTH March DAY AVERAGE DAILY POWER LEVEL DAi AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 859 17 857 2 805 18 860 3 852 19 854 4 851 20 855 5 853 21 849 6 95 22 852 7 509 23 852 8 848 24 856 9 851 25 852 10 847 26 853 11 846 27 852 I 12 854 28 395 13 862 29 788 14 855 30 795 15 853 31 __ 847 16 862 INSTRUCTIONS On this format, list the average daily unit power level in NWe-Net for each day in the reporting month. Compute to the nearest whole megawatt.

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-339 UNIT NAME North Anna 2 DATE 04-06-81 REPORT MONTH MARCH COMPLETED BY L. L. RODGERS TELEPHONE (703) 894-5151 X2510 No. Date l Type Duration Reason 2 Method of Licensee System Component Cause & Corrective (Hours) Shutting vent Code Code Action to 3 4 5

l. Down Reactor Report # Prevent Recurrence i

81-07 810306 F 11.3 A 3 N/A N/A N/A Turbine Trip / Reactor Trip caused by voltage regulator malfunction. 81-08 810328 F 3 A 3 N/A N/A N/A Turbine Trip / Reactor Trip caused by voltage regulator malfunction. 81-09 810329 F 7.1 B 1 N/A N/A N/A Reduced load to 30% to backseat 2-RC-69. I 2 3 4 F: Forced Reason: Method: Exhibit G - 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-Other (Explain) (NUREG-0161) E-Operator Training & License Examination F-Administrative G-Operational Error (Explain) 5 H-Other (Explain) Exhibit 1 - Same Source

Page 1 of 1 UNIT SHUTDOWN AND POWER REDUCTIONS EXPLANATION SHEET DOCKET NO. 50-339 REPORT MONTH MARCH UNIT NAME NA-2 YEAR 1981 DATE 04-06-81 COMPLETED BY L. L. ROGERS 81-07 (A) Turbine trip / reactor trip due to generator lock out relay trip while adjusting the voltage regulator base adjuster manually. 81-08 (A) Turbine trip / reactor trip due to generator loss of field while adjusting the voltage regulator base adjuster manually. 81-09 (B) Reduced load to 30% power to enter loop room to backseat 2-RC-69. Repairs were made and power increased to 100%. i L

Page 1 of 3 VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNIT NO. 2 MONTH March INPUT DATA " BASE LOAD PLANT PERFORMANCE REPORT" FOR NORTH CAROLINA UTILITIES COMMISSION March 1, 1981 This report began with the unit at 100%. March 2, 1981 0900 Reduced power to 850 Mw. Attempting to restore condenser vacuum. Loss of vacv.tm due to leak in "A" waterbox. 1030 Condenser vacuum restored, increased power to 100%. 1320 Placed "A" Waterbox in service, losing vacuum, reducing load. 1440 Unit stable at 88% power. 2243 Increasing power to 100%. 2350 Unit at 100% power. March 6 0003 Turbine trip, reactor trip. Loss of field trip partially unexplained. Operator adjusted regulator with base adjust by mistake. Investigation continuing. 1010 Reactor critical. 1122 Generator on the line. 1200 Holding 30% power for Chemistry. March 7 1115 S/G Cation Conductivity in spec. Commence increasing power.

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Page 2 of 3 1900 Unit at 100% power. March 14 0040 Commenced reducing load for 2-PT-34.3 0130 Completed PT and returned to 100% power. March 21 0100 Reduced power to 880 Mw to run 2-PT-34.3. 0130 Completed test, increasing power to 100%. 0140 Unit at 100% power. March 28 0135 Commenced ramp down for 2-PT-34.3. 3 0300 Completed 2-PT-34.3 and Unit at 100% power. 0400 Reactor trip from turbine trip (Gen loss of field trip). Appears minimum excitation trip may be set incorrectly or instrumentation is incorrect. New Admin. limit set until outage allows for investigation. 0420 Commenced reactor startup. 0454 Reactor critical. 0700 Generator on the line. 0808 30% Chemistry hold. p 1753 Increasing power. ( 2112 Unit at 100 % power. i March 29 2100 Start load reduction to 30% to enter loop room to backseat 2-RC-69. 2112 Stop load reduction; backseat 2-RC-69 and tignten packing on spray valve at this power level ~ 88%. I i i l i l

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4 Page 3 of 3 March 29 (cont.) -2124 Commence lead reduction to 30% for loop room entry. , 2240 Reactor power at 30%. 4 March 30 0050 Commensed power increase after backseating valve. 1 0405 Unit at 100% power. " i i t d 4 I i -{ J i f i I. e t-i t t l. h I l a i i i e 8 I i . I

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ML20008F735

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