ML20070J927

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Monthly Operating Repts for Feb 1990 for North Anna Power Station Units 1 & 2
ML20070J927
Person / Time
Site: North Anna  Dominion icon.png
Issue date: 02/28/1991
From: Mladen C, Stewart W
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
91-139, NUDOCS 9103180209
Download: ML20070J927 (12)
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. VIHOINI A l$LI:CTHIC ANI) l'OWI H COh!!%NY H ICilM ON D, YIHOINIA L!llD 61

, March 12, 1991 U. S. Nuclear Regulatory Commission Serial No.91-139 Attention: Document Control Desk NL&P/JMJ:Jmj 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 UNITS 1 AND 2 MONTHLY OPERATING REPORT Enclosed is the Monthly Operating Report for North Anna Power Station Unia 1 and 2 for the month of Februay 1991.

Very truly yours,

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W. L. Stewart Sene Vice President - Nuclear Enclosures i

i cc. U.S. Nuclear Regulatory Commission

'01 Marietta Streat, NW 4

Suite e900 Atlanta, GA 3032?

Mr. M. S. Lesser

! i4HC Senior Resident Inspector North Anna Power Station i

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VIRGINIA POWER COMPANY NORTH ANNA POWER STATION MONTHLY OPERATING REPORT MONTH: Februarv YEARI. 1991 Approved:

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DOCKET No.i 50 338 DATE: March 5, 1991 COMPLETED BY: C. Mladen PHONE: (703) 894 2537 OPERATING STATUS

1. Unit Names................................ North Anna 1
2. R epor t " g Pe' l od : . . . . . . . . . . . . . . . . . . . . . . . . . F ebruary 1991
3. L i cenaea Thermal Power (MWt ): . . . . . . . . . . . . . 2,893
  • . N amepl ate Rat ing (Gross kWe): . . . . . . . . . . . . , 947
5. Design Electrical Rating (Net MWe)t....... 907 ,
6. Maximum Dependable Capacity (Gross MWe):.. 959
7. Maxi 1um Dependable Capacity (Net MWe) .... 911
8. If char ges occur in Capacity Ratings (!tems No. 3 thru 7) since last report, give reasons:

N/A I

9. Power level to whlen restricted, if any (Net MWe): ___N/A
10. Reasons for restrictions, if any: N/A This Month Y t-D Cumulative
11. Hours in Reporting Period................................ 672.0 1,416.0 111,228.0
12. Number of Hour s R eac t or was C r i t ica'. . . . . . . . . . . . . . . . . . . . . 0.0 2 64.9 80,255.8
13. Reactor Reserve Shutdown Hours........................... 0.0 4.5 6,608.1
14. Hours Generator 0n Line.................................. 0.0 2 64.9 77,4B4.9
15. Unit Reserve Shutdown Hours.............................. 0.0 0.0 0.0
16. Gross Thermal Energy Generated (MWH)..................... 0.0 330,095.7 205,316,331.7
17. Gross E lect r ical Energy Generated (MVH). . . . . . . . . . . . . . . . . . 0.0 106,174.0~ 67,447,512.0
16. N e t E l ec t r ical Energy Genera t ed (MWH) . . . . . . . . . . . . . . . . . . . . 0.0 96,374.0 63,825,126.0
19. Unit Service Factor...................................... 0.0% 18.7% 69.7%
20. Unit Availability Factor.............. .................. '

0.0% 18.7% 69.7%

21. Uni t Capac i t y F ac tor (us i ng MDC N e t ) . . . . . . . . . . . . . . . . . . . . . 0.0% 7.5% 64.1%
22. Unit Capacity Factor (using DER Net).. .................. 0.0% 7.5% 63.3% ,
23. Forced Outage Rate....................................... 0.0 0.0% 12.5%
24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each): I

__* 60 day Refueling Outage commenced 1/12/91 -  !

25. If Shutdown at end of Report Period, estimated time of Startup: March _11,_1991
26. Units in Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION P

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AVERAGE DAILY UNIT POWER LEVEL Docket No.: 50-338 Unitt NA-1 Date March 5, 1991 Completed by: C. Mladen Phonet (703) 894-2537 MONTH: February 1991__

DAY AVERAGE DAILY POWER DAY AVERAGE DAILY LEVEL LEVEL (MWe-Net) LEVEL (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 14 0 15 0 16 0 Instructionst 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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UNIT SIIUTDOWNS AND POWER REDUCTIONS DOCKET NO.: 50-338 UNIT NAME: NA-1 DATE: March 5, 1991 REPORT MONTH: February 1991 COMPLETED BY: C. Mladen PHONE: (703) 894-2537 1 2 3 4 5 No. Date Type Duration Reason Method of, Licensee System Component- Cause & Corrective (hrs) Shutting Event Code Code Action to Down Reactor Report # Pr ovent Recurrence 91-01 910112 S 672 C 4 N/A N/A N/A S/G Maintenance planned 1: Type 2: Reason 3: Method 4:

F= Forced A= Equipment Failure (explain) 1= Manual S= Scheduled Exhibit F - Instructions B= Maintenance or Test 2= Manual Scram for preparation of Data C= Refueling 3= Automatic Scram Entry Sheets for Licensee D= Regulatory Restriction 4= Continuations Event Report (LER) File E= Operator Training & License Examination 5= Load Reduction (NUREG-0161)

F= Administrative 9=Other G= Operational Error 5:

If=Other (explain) Exhibit H - Same Source l

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Page 1 o f _,_,1 UNIT SHUTDOWN AND POWER REDUCTIOs" Explanation sheet Docket No.: 50-338_,,_

Report Month February Unit Name L NA-1 Year 1991 Date: March'5, 1991 Completed by: Cathie Mladen

  1. 91-1 J3nuary 12,-1991 Main Generator taken off-line at 0050 ' hours. Unit entered Mode 3 at-0123 hours. Unit entered Mode'4 at 1210 hours0.014 days <br />0.336 hours <br />0.002 weeks <br />4.60405e-4 months <br />.

January 13, 1991 Entered Mode 5 at 0550 for Refueling Outage.

January 21, 1991 Entered Mode 6 at 0435.

February 14, 1991 1 'ered Mode 5 at-1200.

v NORTH ANNA POWER STATION UNIT NO. 1 MONTH: , February

SUMMARY

OF OPERATING. EXPEBJENCE 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 February 1, 1991 0000 Began month with unit in Mode 6.

February 14, 1991 1200 Entered Mode 5.

February 28, 1991 2400 Ended month with unit in Mode 5.

DOCKET NO.: 50 339 DATE: March 5, 1991 COMPLETED BY: C. Mladen PHONE: (703) 894 2537 OPERATING STATUS

1. Un i t Name s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N o r th Anna 2
2. Reporting Periodt......................... february 1991
3. Licensed Thermal Power (MWt):............. 2893
4. Nanepl at e Rat ing (Gross MWe): . . . . . . . . . . . . . 947
5. Design Electrical Rating (Net MWe) ....... 907
6. Maximum Dependable Capacity (Gross MWe):.. ?57
7. Maxinun Dependable Capacity (Net MWe):. . .. 909
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 YtD Cuiut at ive

11. H ours i n R epor t i ng P e r i od. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 672.0 1,416.0 89.496.0
12. Number of Hours Reactor was Critical..................... 672.0 1,416.0 72,550.3
13. R eac t or R eserve Shutdown Hours. . . . . . . . . . . . . . . . . . . . . . . . . . . 0.0 0.0 5,949.6
14. Hours Generator 0n Line.................................. 672.0 1,416.0 71,650.3
15. Unit Reserve Shutdown Hours.............................. 0.0 0.0 0.0
16. Gross Thermal Energy Generated (MWH)..................... 1,944,012.7 4,095,772.9 191,344,886.3
17. Gross E lect rical Energy Generated (NWH). . . . . . . . . . . . . . . . . . 645,820.0 1,361,105.0 62,663,691.0
18. Net Electrical Energy Generated (MWH).................... 614,726.0 1,296,021.0 60,111,501.0
19. Unit Service Factor...... ............................... 100.0% 100.0% 80.1%
20. Unit Avaltability Factor.................... ............ 100.0% 100.0% 80.1%
21. Uni t Capaci t y Fac t or (us ing MDC Ne t) . . . . . . . . . . . . . . . . . . . 100.6% 100.7%

74.7%

22. Unit Capacity Factor (using DER Net).................... 100.9% 100.9% 74.1%
23. Forced Outage Rate....................................... 0.0% 0.0% 6.3%
24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each): _NONE
25. If Shutdown at end of Report Period, estimated time of Startup: N/A
26. Units in Test Status (Prior to ::mnercial operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OkiRATION

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i AVERAGE DAILY UNIT POWER LEVEL Docket No.: 50-339 Unit NA-2 '

Date: March 5, 1991 Completed by: C. Mladen Phone (703) 894-2537 MONTH: February 1991 DAY AVERAGE-DAILY POWER DAY AVERAGE DAILY LEVEL LEVEL (MWe-Net) LEVEL (MWe-Net) 1 916 17 913 2 916 18 914 3 916 ,_, 19 915 4 _ 916 20 916 5 916 -21 916 6 916 22 915 7 916 23 915 8 915 24 917 9- 904 25 915 10 915 26 915 11 915 27 915 12 _ 915 28 916 13 915 14 915 15 914 16 913 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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UNIT SHUTDOWNS AND POWER REDUCTIONS i

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DOCKET NO.: 50-339 i UNIT NAME: NA-2 DATE: March 5, 1991 REPORT MONTH: February 1991 COMPLETED BY: C. Mladen PHONE: (703) 894-2537 ,

q 1 2 3 4 5 No.. Date Type Duration Reason Method.of Licensee System Component . Cause & Corrective  !

(hrs) Shutting Event Code Code Action to 1

Down Reactor Report # . Prevent Recurrence" i

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. ONo entry this ' month '

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. F= Forced 'A= Equipment Failure (explain) 1=ManttaL Exhibit F - Instructions i 9= Scheduled B= Maintenance or Test 2= Manual Scram -for preparation of Data C= Refueling 3= Automatic Scram- Entry Sheets for Licensee D= Regulatory Restriction 4= Continuations . Event Report - (LER) File ~

i E= Operator Training &-License Examination S= Load. Reduction: (NUREG-Ol61) i

- F= Administrative- 9=Other G=OperationalLError. 5:-

} H=Other (explain) Exhibit!H - Same Source i

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Page 1 o f _ _1 UNIT SHUTDOWN AND POWER RFDUCTIONS.

Explanation Sheet Docket No.: 50-339 Report Month February -Unit Name: NA-2 Year 1991 Date March 5. 1991 Completed by: Cathie Mladen

  • No entry this month i

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t NORTH ANNA POWER STATION l

UNIT NO. 2 MONTH: February l

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, pato Time Data February 1, 1991 0000 Ended month with unit at 100%, 963 MWe, February 9, 1991 0939 Commenced unit ramp down for TVFT.

1023 Unit stable at 885 MWo.

1125 TVFT completed satisfactorily.

1130 Commenced unit ramp up to 100%.

1245 Unit stable at 100%.

February 28, 1991 2400 Ended month with unit at 100%, 963 MWe.

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