ML20079M959

Monthly Operating Repts for Dec 1983

ML20079M959
Person / Time
Site:	North Anna
Issue date:	12/31/1983
From:	Jun Lee VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Haller N NRC
References
013, 13, NUDOCS 8401270484
Download: ML20079M959 (14)

Text

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VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION MONTHLY OPERATING REPORT MONTH December YEAR 1983 APPROVED:

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OPERATING DATA REPORT DOCKET NO. 50-338 DATE 01-04-84 COMPLETED BY Joan N. Lee TELEPHONE (703) 894-5151 X2527 OPERATING STATUS Notes:

1. Unit Name: North Anna 1

2. Reporting Period: December 1983

3. Licensed Thermal Power (MWt)- 9775

4. Nameplate Rating (Gross MWe): 947

5. Design Electrical Rating (Net MWe): 907

6. Maximum Dependable Capacity (Gross MWe): 930

7. Maximum Dependable Capacity (Net MWe): 877

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 8,760 48,441

12. Number of Hours Reactor Was Critical 744 6,463.5 33,586.5

13. Reactor Reserve Shutdown Hours 0 1,767.4 3,021.5

14. Hours Generator On-Line 744 6,279.4 32,661.6

15. Unit Reserve Shutdown Hours 0 0 0

16. Gross Thermal Energy Generated (MWH) 2,059,548 16,851,419 85,051,773

17. Gross Electrical Energy Generated (MWH) 695,355 5,599,655 27,384,187

18. Net Electrical Energy Generated (MWH) 661,274 5,310,441 25,831,174

19. Unit Service Factor 100 71.7 67.4

20. Unit Availability Factor 100 71.7 67.4

21. Unit Capacity Factor (Using MDC Net) 98.7 69.1 60.8 l

22. Unit Capacity Factor (Using DER Net) 98.0 66.8 58.8 l 23. Unit Forced Outage Rate 0 26.0 11.1

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

Scheduled Refueling Outage 05-25-84

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

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

! Forecast Achieved INITIAL CRITICALITY i- INITIAL ELECTRICITY COMMERCIAL OPERATION 1

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

DATE 01-04-84 COMPLETED BY Joan N. Lee TELEPHGE 703-894-5151X2527 MONTH December DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 891 17 890 2 889 18 878 3 879 It 890 4 891 20 889 5 890 21 890 6 890 22 889 7 890 23 887 8 890 24 885 9 890 25 892 10 886 26 892 11 881 27 892 12 891 28 893 13 891 29 892 14 891 30 892 15 891 31 882 16 891 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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Page 1 of 1 UNIT SHUTDOWN AND POWER REDUCTIONS EXPLANATION SHEET DOCKET NO. 50-338 REPORT ff0 NTH December UNIT NAME NA-1 l YEAR 1983 DATE 01-04-84 COMPLETED BY Joan Lee No entries this month.

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l l UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-338 UNIT NAME North Anna 1

.DATE 01-04-84 REPORT MONTH December COMPLETED BY Joan Lee TELEPHONE -(703) 894-5151 X2527 No. Date Type Duration Reason Method of Licensee- System Component Cause & Corrective (Hours) Shutting **"' de * "

3 Down Reactor Report #

• 4 ,

5 Prevent Recurrence

83-11 831202 S B 5 NA NA NA Ramped down for Turbine Valve Freedom Test. Unit returned to full power.

83-12 831210 S B 5 NA NA NA Ramped down for Turbine Valve

, Freedom Test. Unit returned to full power.

, 83-13 831217 S B 5 NA NA NA Rauped down for Turbine Valve 4 Freedom Test. Unit returned to full power.

83-14 831223 S B 5 NA NA NA Ramped down for Turbine Valve

Freedom Test. Unit returned j to full power, j 83-15 831231 S B 5 NA NA NA Ramped down for Turbine Valve i Freedom Test, at 2100 December

! 31, 1983. At the end of report j period Unit I was at 90% 850 MW j for completion of Turbine Valve i Freedom Test. At 0420 January i 1, 1984, Unit I was at 100%

i power.

1 2 3 4 j F: Forced Reason: Method: Exhibit F - Instructions j S: Scheduled A-Equipment Failure (Explain) 1-Hanual for Preparation of Data

B-Maintenance or Test 2-Manual Scram. Entry Sheets for Licensee l C-Refugling 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 i G-Operational Error (Explain) 5 i H-Other (Explain) Exhibit H - Sape Source

i VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNIT NO. 1 MONTH December __

SUMMARY

OF OPERATING EXPERIENCE 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, 1983 0000 Began this month with Unit 1 at 100% power.

December 2, 1983 2150 Commenced rampdown to 850 MW for Turbine Valve Freedom Test.

December 3,1983 0040 Stabilizing power at 91% power, approximately 850 MW, for Turbine Valve Freedom Test.

0212 Turbine Valve Freedom Test complete. Increasing power to 100% at 3% per hour.

0547 Unit at 100% power.

December 10, 1983- 2100 Commenced rampdown for Turbine Valve Freedom Test at 3% per hour.

December 11, 1983 0114 Completed Turbine Valve Freedom Test at 91% - 857 MW.

0120 Commenced rampup to 100% at 3% per hour.

0800 Unit at 100% power - 939 MW.

December 17, 1983 2230 Started rampdown at 3% per hour for Turbine Valve Freedom Test.

December 18, 1983 0140 Unit at 91% power, 850 MW commenced Turbine

, Valve Freedom Test.

l 0215 Turbine Valve Freedom Test complete.

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l -December 18, 1983 0230 Commenced rampup to 100% at 3% per hour.

I 0543 Unit at 100% power.

December 23, 1983 2100 Commenced rampdown for Turbine Valve Freedom Test.

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2351 Holding at approximately 860 MW. 91% power for Turbine Valve Freedom Test.

December 24, 1983 0050 Turbine Valve Freedom Test complete - satisfactory.

0055 Commenced rampup to 100% power.

0348 Unit at 100% power.

December 31, 1983 2100 Commenced rampdown for Turbine Valve Freedom Test.

2310 Stabilizing power at 90% - 850 MW.

2400 Ended this month with unit at 90% - 850 MW for Turbine Valve Freedom Test.

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OPERATING DATA REPORT DOCKET NO. 50-339 DATE 01-04-84 --

COMPLETED BY Joan Lee TELEPHONE (703) 894-5151 X2527 OPERATING STATUS Notes

1. Unit Name: North Ann.s 2

2. Reporting Period: December 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): 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 744 8,760 26,712

12. Number of Hours Reactor Was Critical 722.6 7,203.8 19,646.9

13. Reactor Reserve Shutdown Hours 28.0 1,781.4 3,780

14. Hours Generator On-Line 716 - 7,054.4 - 19,507.1

15. Unit Reserve Shutdown Hours 0 0 0

16. Gross Thermal Energy Generated (MWH) 1,907,183 18,690,021 50,416,041

17. Gross Electrical Energy Generated (MWH) 620,035 6,125,054 16,714,367

18. Net Electrical Energy Generated (MWH) 588,009 5,802,464 15,852,082

19. Unit Service Factor 96.2 80.5 73.0

20. Unit Availability Factor 96.2 80.5 73.0

21. Unit Capacity Factor (Using MDC Net) 89.0 74.4 67.0

22. Unit Capacity Factor (Using DER Net) 87.1 73.0 65.4

23. Unit Forced Outage Rate 3.8 3.7 12.8

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

Scheduled Maintenance Outage 03-30-84

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

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

Forecast Achieved j INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-339 UNIT NA-2 DATE 01-04-84 COMPLETED BY Joan N. Lee TELEPHONE 703-894-5151X2527 MONTH December DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL 7- (MWe-Net) (MWe-Net) 1 875 17 863 2 875 18 871 3 878 19 870 4 861 20 871 5 863 21 765 6 863 22 160 7 864 23 524 8 864 24 850 9 863 25 857 10 858 26 859 11 864 27 854 12 864 28 857 l

13 863 29 857 14 860 30 854 -

15 861 31 51 16 863 l' 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.

Page 1 of 1 UNIT SHUTDOWN AND POWER REDUCTIONS EXPLANATION SHEET DOCKET NO. 50-339 REPORT MONTH December UNIT NAME NA-2 YEAR 1983 DATE 01-04-84 COMPLETED BY Joan Lee 83-29 F (1) On December 21, 1983 at 2102, Unit 2 Reactor tripped.

This trip was caused by a power spike in Vital Bus 2.

Leads were shorted when removing a circuit card from the reactor vessel level monitoring system. At 2307 commenced reactor start-up. At 0042 on December 22, 1983, reactor critical and by 0313 Unit 2 was on line.

83-30 F (2) On December 30, 1983 at 1335 commenced rampdown of Unit 2 due to tube leak in condenser (secondary side). By 1940 on December 30, 1983 Unit 2 was off-line. Repairs were made and reactor was critical on December 31, 1983, at 1345. Unit 2 was on-line at 1554 on December 31, 1983.

Unit was stabilized at 30% power for a chemistry hold.

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-339 _

l UNIT NAME North Anna 2 DATE 01-04-84 REPORT MONTH December COMPLETED BY Joan N. Lee TELEPHONE (703) 894-5151 X2527

' l 2 No. Date Type Duration Reasoa Method of Licensee System Component Cause & Corrective (Hours) Shutting **" Code Action to Down Reactor3 Report #

• 4 5 Prevent Recurrence 83-26 831204 S 0 B 5 NA NA NA Ramped down for Turbine Valve Freedom Test. Unit returned to full power.

83-27 831210 s O B 5 NA NA NA Ramped down for Turbine Valve Freedom Test. Unit returned to full power.

83-28 831216 s O B 5 NA NA NA Ramped down for Turbine Valve Freedom Test. Unit returned

to full power.

83-29 831221 F 6.6 G 3 NA NA NA Reactor tripped due to power spike in Vital Bus 2. Shorted j leads when removing circuit card from the reactor vessel level monitoring system. Com-l menced reactor start-up, unit

] returned to full power.

21.4 Unit shutdown due to tube 83-30 831230 F A 1 NA NA NA i leak in condenser secondary

side. Repairs were made and l unit returned to 30% power.

j Ended this month with unit at i 30% power in chemistry hold.

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!' 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-Refgeling 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) Exhibit H - Same Source

! H-Other (Explain) l i

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VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNIT NO. 2 MONTH December

SUMMARY

OF OPERATING EXPERIENCE 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, 1983 0000 Began this month with Unit at 100%.

December 4, 1983 0005 Commenced rampdown for Turbine Valve Freedom Test.

0100 Completed Turbine Valve Freedom Test -

satisfacto ry. Commenced rampup to 100%.

0300 Unit at 100%.

December 10- 1983 0020 Commenced rampdown for Turbine Valve Freedom Test.

0158 Completed Turbine Valvc Freedom Test -

satisfactory.

0159 Commenced rampup to 100%.

0313 Unit at 100% power.

December 16, 1983 2250 Commenced rampdown for Turbine Valve Freedom Test.

December 17, 1983 0045 Unit at 90% power - 869 MW.

0209 Completed Turbine Valve Freedom Test -

satisfactory. Commenced rampup to 98%

power.

. 0301 Unit holding at 98% power, for calorimetric.

4 34:': C.amenced rampup to 100%.

6k. Unit at 100% power.

December 21, 1983 2102 Reactor tripped. Trip caused by a power spike in Vital Bus 2. Shorted leads when removing car' from the reactor vessel level monitoring system.

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2307 Repairs made. Commenced reactor start-up.

December 22, 1983 0042 Reactor critical.

0313 Unit 2 on-line.

0607 Increasing power to 30% - 250 MW.

December 23, 1983 0325 Ccamenced rampup to 50% - 460 MW.

1638 Commencing rampup to 100% power.

1700 Holding power at 89% - 840 MW to perform Turbine Valve Freedom Test.

2100 Holding power at approximately 99% power -

870 MW for calorimetric.

December 24, 1983 0700 Unit at 100% power - 920 MW.

December 30, 1983~ 1335 Commenced rampdown at 18% per hour due to tube leak in condenser (secondary side).

1559 Unit stabilized at 30% power. Chemistry hold.

1812 Continued rampdown.

1940 Unit 2 off-line.

December 31, 1983 1345 Reactor critical. Condenser repairs complete.

Remaining at hot standby awaiting clean up of secondary chemistry.

1415 Unit stable at 3% power.

1554 Generator on-line.

1700 Stabilized at 30% power - 175 MW.

2400 Ended this month with unit at 30% power with chemistry hold.

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VIRoINIA EI.scTmIc ann Powan CoxPANY Rucnwown, VIRGINIA 20261 W.L.SrawAart Vice Passan==v woca. man oe==*no== January 13, 1984

.Mr. N. M. Haller, Director Serial Ps. 013 Office of Management and Program Analysis N0/JiiL:ncm U. S. Nuclear Regulatory Commission Docket Nos. 50-338 Washington, D. C. 20555 50-339 License Nos. NPF-4 NPF-7

Dear Mr. Haller:

Enclosed is the Monthly Operating Report of North Anna Power Station Unit Nos.

I and 2 for the month of December, 1983.

Very truly yours, s

s W. L. Stewart Enclosure.(3 copies) cc: Mr. R. C. DeYoung, Director (12 copies)

Office of Inspection and Enforcement Mr. James P. O'Reilly (1 copy)

Regional Administrator Region II.

Mr. M. W. Branch

~NRC Resident Inspector North Anna Power Station I

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