ML20058H902

Monthly Operating Repts for Oct 1990 for North Anna,Units 1 & 2

ML20058H902
Person / Time
Site:	North Anna
Issue date:	10/31/1990
From:	Phillips T, Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
90-720, NUDOCS 9011260136
Download: ML20058H902 (12)

Text

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VIHOINIA }$M:CTHIC AND POWEH COW'ANY Hiruwown,Vinuix A unuel November 15,1990 U. S. Nuclear Regulatory Commission Serial No. 90 720 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 Encloced is the Monthly Operating Report for North Anna Power Station Units 1 and 2 for the month of October 1990.

Very truly rs,

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di W. . tW rt Senior Vice President Nuclear Enclosures cc: U.S. Nuclear Regulatory Commission 101 Marietta Street, NW Suite 2900 Atlanta, GA 30323 Mr. M. S. Lesser NRC Senior Resident inspector North Anna Power Station 90112e.visiSoto31 ron R nooce osooo33e pdc

l t I-VIRGINIA POWER COMPANY NORTH ANNA POWER STATION NONTHLY OPERRTING REPORT NONTH: October YEARt 1990 Approved:

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OPERATING DATA REPORT l

DOCKET No.: 50 338

[ DATE: Novenber 4, 90 COMPLETED BY: T. Phlttips PMONE: (703) 894 2537 OPERATING STATUS

1. Uni t N ame s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N or t h Anna 1

2. R epor t i ng Pe r i od s . . . . . . . . . . . . . . . . . . . . . . . . 0c t obe r 1990

3. Licensed Thermal Power (MWt)t............. 2,893

4. Nameplate Rating (Gross MWe):............. 947

5. Design Electrical Rating (Net MWe) ....... 907

6. Maxinun Dependable Capacity (Gross MWe) .. 959

7. Maxinue Dependable Capacity (Net MWe) .... 911

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 Yat D Canulative

11. Hour s i n R epor t i ng P er i od. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 745.0 7,296.0 108,348.0

12. Nwber of Hours R eac t or was Cr i t i c a t . . . . . . . . . . . . . . . . . . . . . 745.0 7,284.4 78,526.9

13. React or R eserve Shutdown Hours. . . . . . . . . . . . . . . . . . . . . . . . . . . 0.0 0.0 6,603.6

14. Hours Generator 0n Line.................................. 745.0 7,262.0 75,756.0

15. Uni t R eserve Shut down Hours . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.0 0.0 0.0

16. Gross Thermal Energy Generat ed (MWH) . . . . . . . . . . . . . . . . . . . . . 1,809,641.9 20,580,103.6 202,470,881.6 17.' Gross E lec t ri cal E ner0y Generat ed (MWH). . . . . . . . . . . . . . . . . . 601,479.0 6,825,580.0 66,532,402.0

18. Net E t tetrical Energy Generated (MWH) . . .. . . . . . . . . . . . . . . . . 566,707.0 6,484,539.0 62,979,752.0

19. Unit Service Factor...................................... 100.0% 99.5% 69.9%

20. Unit Availability Factor................................. 100.0%' 99.5% 69.f t

21. Uni t capac i ty F ac t or (us i ng MDC Net ) . . . . . . . . . . . . . . . . . . . . . 83.5% 97.4% 65.J%

22. Uni t capac i t y f ac t or (using DE R Net ) . . . . . . . . . . . . . . . . . . . . . 83.9% 98.0% v .1%

23. Forced Outage Rate....................................... 0.0 0.5% 12.7%

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

_60*

day Refueling Outage scheduled 1/4/91

25. If Shutdown at end of Report Period, estimated time of Startups _N/A

26. Units in Test Status (Prior to Commercist Operation):

Forecast Achieved IN111AL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERAll0N

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+

AVERAGE DAILY UNIT POWER LEVEL Docket No.: __ 50-338 Unitt NA-1 ,

Date November 4. '90 completed by: T. PhilligA_

Phonet (703) 894-2537.

MONTH: October 1990 -

DAY AVERAGE DAILY POWER DAY AVEIAGE DAILY LEVEL LEVEL (NWa-Net) IEVEL (NWe" Net) 1 _

842 16 .

753 2 837 17 752 3 834 18 751 4 ,

828 19 749 5 810 20 746 6 794 21 726 7 807 22 726 8 820 23 724 ;_

9 793 24 721 10- 789 25 718 11 785 26 716 12 782 27 ,__

701 13 779 28 __ 693 14 777 29 690

-15 771 30 687 31 685 Instructions:

On this format, list the average daily unit power level in MWe-Net. for each day in the reporting 'aonth. Compute to the nearest whole megawatt.

l .

NOF.TM ANNA POWER STATION UNIT NO.I 1 NONTH: October.

3UMMARY OF OPERAT1.NG EXP.ERLEECE 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.

DAIR 115.1 DA.td October 01, 1990 0000 Bogan month with Unit at 95%, 912MW, in coastdown for refueling outage.

October 31, 1990 2400 Ended month with unit at 76%, 733MW.

UNIT SHUTDOWNS AND POWER REDUCTIONS' ,

DOCKET NO.: 50-338 UNIT NAME: NA-1 DATE: November 4, 1990 REPORT MONTH: October 1990 COMPLETED BY: T. Phillips PHONE: (703) 894-2537 2 3 4 5 1 .

Licensee System Comnonent Cause & Corrective

~No. Date Type Duration Reason Method of Shutting Event Code code Action to (hrs) Down Reactor Report # Prev nt Recurrence

• No entry this nonth j

3: Method 4:

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

E= Operator Training & License Examination 9=Other F= Administrative 5:

G= Operational Error H=Other-(explain)

Exhibit H - Same Source

=

t Page 1 of __1 UNIT 8HUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.: 50-338 Report Nonth Octobgr Unit Name NA-1 Year: ,1990 Dates November 4. '90 completed by: __Todd Phillies

• No entry this month

. OPERAflNG DATA REPORT l DOCKET No.: 50 339 i

Daft Noventer 4, 90 COMPLitt0 Bf 1. Phillips PHONE: (703) 894 2774 OrtRA11NG STATUS

1. Unit Names................................ North Anna 2

2. Deporting Periods........................ 0ctober 1990 3, t iconsed t hermal Power (MWt ) . . . . . . . . . . . . . 2893

4. Nameplete Rating (Cross MWe) ............. 947

5. Design Electrical Rating (het Mie):....... 907

6. Maalpun Dependable Capacity (Cross MWe):.. 957

7. Maximun Dependable capacity (Wet MWe) .... 909

8. If changes occur in Capacity Ratings (Items No. 3 +hru 7) since last report, give reasons

_ N/A t

9. Power levet to which restricted, if any (Net MWe): _ W/A

10. Reasons for restrictions, If any: N/A 4

This Month V t.D Cmulative

11. Hours in Reporting Period................................ 745.0 7,296.0 86,616.0

12. Nm ber of Hours Reactor was Critical..................... 0.0 5,570.3 69,692.4

13. Reac t or R eserve shut down Hour s. . . . . . . . . . . . . . . . . . . . . . . . . . . 0.0 36.9 5,891.8

14. H our s Gene r a t or 0n L i ne . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.0 5,570.2 68,822.1

15. Uni t R eserve Shut down Hours. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.0 0.0 0.0

16. Cross thermal Energy Genera t ed (MWH ) . . . . . . . . . . . . . . . . . . . . . 0.0 15,267,117.4 183,413,464.4

17. Cross E lec t r ical Energy Generat ed (MWH ). . . . . . . . . . . . . . . . . . 0.0 5,027,524.0 60,033,041.0

18. Nat E lec t rical Energy Generat ed (MWH) . . . . . . . . . . . . . . . . . . . . 0.0 4,769,708.0 57,608,540.0

19. Unit Service factor...................................... 0.0% 76.3% 79.5%

20. Unit Availability factor................................. 0.0% 76.3% 79.5%

21. Unit Capacity Factor (using MDC Net)..................... 0.0% 71.8% 74.0%

22. Uni t Capac i ty F ac t or (us i ng DE R We t ) . . . . . . . . . . . . . . . . . . . . . 0.0% 72.1% 73.3%

23. Forced Outage Rate....................................... 0.0% 0.4% 6.5%

24. thutdowns scheduled Over Next 6 Months (Type, Date, and Duration of tach):

,,f75 day Refueling /10 year 151 Outage started 8/22/90

25. If shutdown at end of Report Period, estimated time of startup: 11/5/90

26. Units in Test Status (Prior to Consnercial Operation):

Forecast Achieved INITIAL CRiflCALITY IWlilAL tttCTRICITY COMMERCIAL OPfRATION

1

! AVERAGE DAILY UNIT POWER LEVEL Docket No.t 50-339 Unitt NA-2 Dates November 4. '90 completed by: T. Phillins Phonet (703) 894-2537 NONTH: October 1990 DAY AVERAGE DAILY POWER DAY AVERAGE DAILY LEVEL LEVEL (MWe-Net) LEVEL (NWa-Net) 1 0 16 0 2 0 17 0 3 0 18 0 4 0 19 0 5 0 20 0 6 0 21 0 7 0 22 0 8 0 23 0 9 0 __ 24 0 10 0 25 0 11 __

0 26 0 12 0 27 0 13 0 28 0 14 0 29 0 15 0 30 0 31 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.

1

NORTH ANNA POWER STATION UNIT NO.I 2 MONTH: October SUMMMY 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.

Dain Time DAin October 01, 1990 0000 Bogan month with Unit in mode 6, 0%.

October 08, 1990 2100 Entered mode 5.

October 22, 1990 0945 Received RCS Overpressure annunciator twice at 335 psig, 2-RC-PCV-24 55C cycled each tin' .

Problem determined to be trans-mitter reading 35 psig high.

0946 Depressurized RCS to 300 psig.

1047 Placed keyswitches for 2-RC-PCV-2455C to "of f" for transmitter calibration.

l'.45 Transmitter successfully calibrated.

1252 Returned 2-RC-PCV-24550 keyswitches to " auto".

October 30, 1990 0503- Entored mode 4.

October 31, 1990 1623 Entered mode 3.

October 31, 1990 2400 Ended month with Unit in mode 3, 0%.

4

T UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.: 50-339 UNIT NAME: NA-2 DATE: November 4, 1990 REPORT MONTH: October 1990 COMPLETED BY: T. Phillips PHONE: (703) F94-2537 3 4 5 1 2 Component Cause & Corrective Duration Reason Method of Licensee System No. Date Type Event Code Code Action to (hrs) Shutting Prevent Recurrence Down Reactor Report #

4 N/A MS RM S/G Maintenance planned 90-2 900821 S 745.0 C RC PCV Transmitter card repaired 901022 N/A 3: Method 4:

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

E= Operator Training & License Examination 9=Other F= Administrative 5:

G= Operational Error H=Other (explain)

Exhibit H - Same Source

Page 1 of __1 UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.: 50-339 Report Month October Unit Name NA-2 Years 1990 Dates November 4, 90 Completed by: Todd Phillins ,

1. 90-2 August 21, 1990 Main Generator taken off-line at 0310 hours0.00359 days <br />0.0861 hours <br />5.125661e-4 weeks <br />1.17955e-4 months <br />. Unit entered mode 3 at 0323 hours0.00374 days <br />0.0897 hours <br />5.340608e-4 weeks <br />1.229015e-4 months <br />. Unit entered mode 4  ;

at 1933 hours0.0224 days <br />0.537 hours <br />0.0032 weeks <br />7.355065e-4 months <br />.

August 22, 1990 Unit entered mode 5 at 1612 hours0.0187 days <br />0.448 hours <br />0.00267 weeks <br />6.13366e-4 months <br /> for 10 year ISI/

Refueling outage.

September 04, 1990 Unit entered mode 6 at 0801 hours0.00927 days <br />0.223 hours <br />0.00132 weeks <br />3.047805e-4 months <br />.

October 08, 1990  :

Unit entered mode 5 at 2100 hours0.0243 days <br />0.583 hours <br />0.00347 weeks <br />7.9905e-4 months <br />.

October 22, 1990 Received RCS Overpressure annunciator twice at 335psig, 2-RC-PCV-2455C cycled each time. Problem determined to be transmitter reading 35 psig high. Transmitter-re-calibrated.

! October 30, 1990 ,

Unit entered mode 4 at 0503 hours0.00582 days <br />0.14 hours <br />8.316799e-4 weeks <br />1.913915e-4 months <br />.

October 31, 1990

[ Unit entered mode 3 at 1600 hours0.0185 days <br />0.444 hours <br />0.00265 weeks <br />6.088e-4 months <br />.

l' tw --a $