ML20135E496

Monthly Operating Repts for Nov 1996 for North Anna Power Station Units 1 & 2

ML20135E496
Person / Time
Site:	North Anna
Issue date:	11/30/1996
From:	Matthews W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
96-612, NUDOCS 9612110318
Download: ML20135E496 (12)

Text

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l i VINGINIA ELECTHIC AND POWER COMPANY ,

f Hicnwown,VinorwrA causi j December 3,1996 United States Nuclear Regulatory Commission Serial No.96-612 Attention: Document Control Desk NAPS /JHL Washington, D. C. 20555 Docket Nos. 50-338

, 50-339 l License Nos. NPF-4 l NPF-7 l

l Gentlemen:

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VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNIT NOS.1 AND 2 l l MONTHLY OPERATING REPORT  !

i Enclosed is the November 1996 Monthly Operating Report for North Anna Power I Station Unit 1 and 2.

Very truly yours, l 4 i44/W s W. R. Matthews Station Manager Enclosure cc: U. S. Nuclear Regulatory Commission Regicn II ici Marietta Street, N. W. lI Suite 2900 Atlanta, Georgia 30323 g7 Mr. R. D. McWhorter NRC Senior Resident Inspector North Anna Power Station i 9612110318 961130 l PDR ADOCK 05000338 l R PDR 1

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J VIRGINIA POWER COMPANY NORTH ANNA POWER STATION j MONTHLY OPERATING REPORT ,

MONTH: November YEAR: 1996

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Approved:

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. CPERATIN3 DATA REPORT i DOCKET NO.s 50-338 DATE: Decent >er 5, 1996 CONTACTS W. R. Matthews PHONES (540) 894-2101 OPERATING STATUS

1. Unit Names., . ....... . . . .. . ... North Anna 1 i 2. Reporting Periods................ .. . . Noventier 1996 I 3. Licensed Thermal Power (MWt)s.. ..... . 2,893

4. Nameplate Rating (Gross Pedel s . . . . .. . .. 994

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

6. Maximum Dependable Capacity (Gross MWe)s. . . 940 l 7. Maximum Dependable Capacity (Net MWe) . .. 893 I

8. If changes occur to Capacity Ratings (!tems 3 thru 7) since last report, give reasons: N/A l -

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9. Power level to which restricted, if any (Net MWe): N/A

10. Reasons for restrictions, if anya N/A i

This Month Y-t-D Cumulative

11. Hours in Reporting Period.. . ... . .. . . .. 720.0 0,040.0 161,676.0

12. Number of Hours Reactor was Critical.. . .. . .. 120.0 7,286.0 124,413.2

13. Reactor Reserve Shutdown Hours. ...... . ... . . . . 0.0 94.6 7,046.0

14. Hours Generator On-Line....... . ... . . . . . 720.0 7,242.3 121,429.0

15. Unit Reserve shutdown Hours...... ... .. .. ... . 0.0 0.0 0.0

16. Gross Thermal Energy Generated ( M O., ... ... .. .. . . . 2,082,606.9 20,114,975.0 325,426,712.1 l 17. Gross Electrical Energy Generated (MO . . ... . ...... . . 685,146.0 6,604,948.0 143,935,561.0 l 18. Net Electrical Energy Generated (MWH).. .. . . . ..... . 651,706.0 6,272,314.0 101,313,460.0

19. Unit Service Factor. .. ........ ... . . ., ...... .. .... 100.0% 90.1% 15.1% J

20. Unit Availability Factor..... . . . ... .. . .. 100.04 90.16 75.11 l

21. Unit Capacity Factor (using MD2 Net) . .. . . .. 101.4% 87.4% 70.14

22. Unit Capacity Factor (using DER Net). . .... 99.04 B6.06 69.1%

23. Forced Outage Rate......... .. .... .. .. . . . .. 0.04 0.96 8.84

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, Duration of Lach): N/A

25. If shutdown at end of Report Period, estimated time of Startupt N/A l

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26. Units in Test Status (Prior to Conmercial Operation!:

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COP 91ERCI AL OPERATION l

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AVERAGE DAILY UNIT PCMER LEVEL i

Docket No.: 50-338 Unit: NA-1  :

Date: December 5, 1996  :

Contact:

W. R. Matthews ,

Phone: (540) 894-2101  ;

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MONTH: November 1996

DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER'  !

LEVEL (MWe-Net) LEVEL (MWe-Net)  !

i 1 907 17 905 i' 2 906 18 905 l 3 906 19 906 {

4 906 20 906 l 5 906 21 906 j

! 6 906 ~

22 903 l l 7 905 23 906 905 8 24 906 l 9 905 25 905 i 10 905 26 905 11 905 27 905 l 12 904 28 905 '

13 903 29 904 14 904 30 905 15 905 i 16 905 1 i

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Instructions: l On this format, list the average daily unit power level in MWe- l Net for each day in the reporting month. Compute to the nearest I whole megawatt.

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, NORTH ANNA POWER STATION UNIT NO.: J MONTH: November 1

SUte4ARY OF OPERATING EXPERIENCE )

i Page 1 of 1 j j

. Listed below in chronological sequence is a . summary of operating i experiences for this month which required load reductions or resulted in '

significant non-load related incidents. I 1

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i Date Time Data  !

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( November 01, 1996 0000 Began month with unit at 100% power, 952 Mwe. '

I November 22, 1996 1434 Commenced rampdown for Turbine Valve Freedom l Test (TVFT).  !

1510 Unit stable at 93% power, 890 MWe.  ;

I 1545 TVFT completed satisfactorily. Commenced ramp to 100% power.  ;

1630 Unit stable at 100% power, 950 MWe. ,

November 30, 1996 2400 Ended month with unit stable at 100% power, 954 MWe.

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Page 1 of 1 i

UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.: 50-338  ;

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l Report Month November Unit Name: NA-1 l.

Year: 1996 Date: December 5, 1996 f

Contact:

W. R. Matthews t

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UNIT SHUTDOWS AND POWER REDUCTIONS 9

DOCKET NO.: 50-338 UNIT NAME: NA-1 DATE: December 5, 1996 REPORT MONTH: November 1996 CONTACT: W. R. Matthews PHONE: (540) 894-2101 1 2 3 4 5 No. Date Type Duration Reason Metned of Licensee System Component Cause & Corrective (hrs) Shutting Event Code Code Action to Down Reactor Report # Prevent Recurrence

• No entries this month.

1: Type 2: Reason 3: Method 4:

F= Forced A= Equipment Failure (explain) l= Manual Exhibit F - Instructions S= 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 E= Operator Training & License Examination 5= Load Reduction (NUREG-0161)

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

H=Other (explain) Exhibit H - Same Source

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, OPERATING DATA REPORT i

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l DOCKET NO.s 50-339  ;

1 EATE Decent >er 5, 1996  ;

R. Matthews i

i CONTACT 1 W.

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PHONE: (540) 894 2101

! OPERATING STATUS l

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1. Uni t Name s . . . . . . . . . . . . .. . ... .. ... North Anna 2 l 2. Reporting Periods... . . . . . . . . November 1996 ,

j 3. Licensed Thermal Power (MWt)t.... ... .. 2,093 1

4. Nameplate Rating (Gross MWels.. . . . ... 97 9 I

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

6. Maximum Dependable Capacity (Gross Vin)t. 944 i

7. Maximum Dependable Capacity (Not MWa)2., , , 897  !

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8. If changee occur to Capacity Ratings (Items 3 thru 7) since last report, give reasons: N/A l

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9. Power level to which restricted, if any (Net MWe): N/A j

10. Reasons for restrictions, if any: N/A 1 1

This Month Y-t-D Cumulative j

11. Hours in Reporting Period. . . . .. . 120.0 0,040.0 139,944.0

12. Nunteer of Hours Reactor was critical. 212.9 6,673.9 116,731.5

13. Reactor Reserve Shutdown Hours. .. .. . . . 411.6 541.0 7,082.0

14. Hours Generator on-Line. . . . . . . .. 272.9 6,643.4 115,566.5

15. Unit Reserve Shutdown Hours. . . , 0.0 0.0 0.0 16 Gross Thermal Energy Generated (MWlO.... . 789,979.0 18,950,950.9 314,926,189.4

17. Gross Electrical Energy Generated (MWH). . . . ... . ..... 259,656.0 6.223,865.0 103,055,263.0

18. Net Electrical Energy Generated (MWH) . . . . 246,913.0 5,910,217.0 99,409,056.0

19. Unit Service Factor. . . ,. . . . . . . . . 37.96 82.6% B2.6%

20. Unit Availability Factor. . ... ... ... . . ... . .. . .. 37.94 82.6% 02.6%

21. Unit Capacity Factor (using MDC Net) . . . . 38.2% 82.16 78.2%

22. Unit Capacity Factor (using DER Net). . . .. 37.04 81.24 77.6%

23. Forced Outage Rate .. .. . . . . 62.14 1.6% 4.6%

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

25. If Shutdown at end of Report feriod, estimated time of Startups Estimated startup of December 14, 1996 followinQ repairs to the Main Generator.

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

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMRCI AL OPERATION l

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. l AVERAGE DAILY UNIT POWER LEVEL' ,

1 Docket No.: 50-339 Unit: NA-2  !

Date: December 5, 1996

Contact:

W. R. Matthews l

Phone: (540) 894-2101 l MONTH: November 1996 1 l

DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL (MWe-Net) LEVEL (MWe-Net) t 1 907 17 0' l 2 906 18 0  ;

l 3 906 19 0 i L 4 905 20 0 ,

5 S!05 21 0  ;

6 906 22 0

j. 7 897 23 0 l 8 906 24 0

! 9 906 25 0 l- 10 905 26 0 11 905 27 0 12 336 28 0

13 0 29 0 l 14 0 30 0 1 15 0

16 0 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.

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i NORTH ANNA POWER STATION i i UNIT NO.: 2 I MONTH: November '

SUl44ARY OF OPERATING EXPERIENCE Page 1 of 1  ;

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. Listed below in chronological sequence is a summary of operating  !

cxperiences for this month which required load reductions . or resulted in '

significant non-load related incidents.  !

Date Time Data j November 01, 1996 0000 Began month at 100% power, 951 MWe. l November 07, 1996 0415 Commenced ramping unit from 100% power, 952 l MWe for removal of "B" Moisture Separator i Reheater (MSR) Drain Tank due to an unisolable {

leak on weld for level column.  !

0549 Unit stable at 97.5% power, 930 MWe.

0812 Commenced ramp to 100% power after "B" MSR j steam leak. 1 l

0846 Unit stable at 100% power, 944 MWe.

November 12, 1996 0853 Automatic Reactor trip due to Main Generator Differential Lock Out Relay actuation.

November 13, 1996 1103 Commence cooldown to 325 F for extended repairs to Main Generator.

1612 Enter Mode 4.

1942 Unit stable at 400 psig and 325'F with RHR established.

November 29, 1996 0944 Began cooldown to Mode 5 for RCS repairs.  ;

1230 Entered Mode 5. I 1240 Broke Containment vacuum.

l l 1330 Unit stable at 185 F, 325 psi.

I l November 30, 1996 2400 Ended month in Mode 5 for Main Generator i repairs.  ;

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UNIT SHUTDOWN AND POWER REDUCTIONS l Explanation Sheet ,

l Docket No.: 50-339 l l  ;

Report Month November Unit Name: NA-2  ;

Year: 1996 Date: December 5, 1996 l

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Contact:

W. R. Matthews j l I 96-03 November 12, 1996 0853 hours0.00987 days <br />0.237 hours <br />0.00141 weeks <br />3.245665e-4 months <br />  !

Automatic reactor trip due to. Main Generator i Differential Lock Out Relay actuation. j i

November 13, 1996 1103 hours0.0128 days <br />0.306 hours <br />0.00182 weeks <br />4.196915e-4 months <br />  !

Commenced cooldown to 325 F for extended repairs to Main Generator. 1 1

1 November 29, 1996 0944 {

Began cooldown to Mode 5 for RCS repairs. i Entered Mode 5 at 1230 hours0.0142 days <br />0.342 hours <br />0.00203 weeks <br />4.68015e-4 months <br />. I I

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UNIT SHUTDOWS AND POWER REDUCTIONS ',

DOCKET NO.: 50-339 UNIT NAME: NA-2 DATE: December 5, 1996 REPORT MONTH: November 1996 CONTACT: W. R. Matthews ,

PHONE: (540) 894-2101 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 # Prevent Recurrence 96- 3 961112 F 447.1 A 3 2-96-003 TB TG Main Generator "A" Phase Fault Caused by Foreign Material Blocking Cooling Flow 1: Type 2: Reason 3: Method 4:

F= Forced A= Equipment Failure (explain) l= Manual Exhibit F - Instructions S= 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 E= Operator Training & License Examination 5= Load Reduction (NUREG-0161)

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

H=Other (explain) Exhibit H - Same Source

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