ML20063H474

Monthly Operating Repts for Jan 1994 for North Anna Power Station Units 1 & 2

ML20063H474
Person / Time
Site:	North Anna
Issue date:	01/31/1994
From:	Bowling M, Kane G VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
94-079, 94-79, NUDOCS 9402180151
Download: ML20063H474 (12)

Text

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t VinorNIA ELECTHIC AND POWER COMPANY Itzenxown,VIHOTNIA 20201 February 10, 1994 5

U. S. Nuclear Regulatory Commission Serial No.94-079 Attention: Document Control Desk NL&P/JMJ:jm]

Washington, D.C. 20555 Docket Nos.

50-338 50-339 License Nos. NPF-4 NPF-7

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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 Units' 1 and 2 for the month of January 1994.

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Very truly yours,

/lY M. L. Bowling, Manager Nuclear Licensing & Programs Enclosure cc:

U.S. Nuclear Regulatory Commission 101 Marietta Street, NW

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Suite 2900 Atlanta, GA 30323 Mr. R. D. McWhorter i

NRC Senior Resident inspector North Anna Power Station 1S0007 m.

9402180151 940131 g

PDR ADOCK 05000338 R

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NORTH ANNA POWER STATION s

MONTHLY OPERATING REPORT.

I MONTH:

January YEAR:

1994 1

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, Approved:-

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Station-Manager -

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i OPERATING DATA REPORT

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l DOCKET No.:

50-338 DATE: Feb. 1, 1994 CONTACT: G. E. Kane PHONE: (703) 894-2101 OPERATING STATUS 1.

Unit Name:.....

....................... North Anna 1 2.

Arporting Period:......................... January 1994 3.

Licensed Thermal Power (MWt):....

2,893 4.

NLmeplate Rating (Gross MWe).

947 5.

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

907 6.

Maximum Dependable Capacity (Gross MWe):..

?48

. j 7.

Maximum Dependable Capacity (Net MWe):....

900 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. Raasons for restrictions, if any:

N/A This Month Y-t-D Cunulative

11. Hours i n R epor t i ng Per i od...............................

744.0 744.0 136,8o0.0

12. Number of Hours Reactor was critical.....................

744.0 744.0 101,149.7

13. Rezetor Reserve Shutdown Hours..........................

0.0 0.0 6,826.8

14. Hours Generator on-Line................................

744.0 744.0 98,184.9 l

15. Unit Reserve Shutdown Hours..........

0.0 0.0 0.0

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16. Gross Thermal Energy Generated (MWH).................. 2,151,795.9 2,151,795.9 260,604,032.3 J

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17. Gross Electrical Energy Generated (MWH)..................

707,880.0 707,880.0 85,623,237.0 3

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18. Nat Electrical Energy Generated (MWH).

673,927.0 673,927.0 81,080,512.0

19. Unit servi e Factor.........

100.0%

100.0%

71.7%

20. Unit Availability Factor............

100.0%

100.0%

71.7%

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21. Unit apacity factor (using MDC Net).....................

100.6%

100.6%

66.3%

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22. Unit Capacity Factor (using DER Net)..............

99.9%

99.9%

65.3%

23. Forced Outage Rate.......................................

0.0%

0.0%

10.7%

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24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each)_N/A I

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

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

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Forecast Achieved l

INITIAL CRITICALITY l

INITI AL ELECT't! CITY COMMERCIAL OPERATION i

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AVERAGE DAILY UNIT POWER LEVEL Docket No. :

50-338 Unit:

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Date Feb. 1; 1994

Contact:

G. E. Kane Phone:

-(703) 894-2101-l MONTH:

January 1994 i

DAY AVERAGE DAILY POWER DAY

-AVERAGE DAILY: POWER LEVEL (MWe-Ne t)

' LEVEL (MWe-Net) 1 905 17

-906~

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905 18 906 3

904 19 906-4 904 20 907 5

904 21 906

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6 905 22 908 7

899 23 907:

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8 906 24 908 i

9 906 25 908 10 907 26 907-11 906 27-907

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12 907 28 908 13 907 29 897 14 906 30 906 15

-906 31 908-16 906 1

l Instructions:

On this format, list the average daily unit. power level -in MWe-Net for each day in the reporting month.

Compute to theLnearest whole megawatt.

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NORTH ANNA POWER STATION UNIT NO.:

1 MONTH:

January

SUMMARY

OF OPERATING EXPERIENCE i

Page 1 of 1 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 1

January 01, 1994 0000 Began month with unit at 100% power, 950 MWe.

January 07, 1994 1013 Commenced unit ramp-down for TVFT.

1041 Unit stable at approximately 90% _ power, 871 MWe for TVFT.

1154 TVFT completed satisfactorily.

Commenced unit ramp-up to 100% power.

1315 Unit stable at 100% power, 949 MWe.

January 31, 1994 2400 Ended month with unit at 100% power, 955 MWe.

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UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.:

50-338 Report Month January Unit Name:

NA-1 Year:

1994 Date: February 1.

1994

Contact:

G.

E.

Kane j

• No entry this month.

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ITNIT SHUTDOWNS AND POWER REDUCTIONS

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DOCKET NO..

50-338 UNIT NAME:

NA-1 DATE: Feb.

1, 1994 REPORT MONTH: January 1994 CONTACT: G.

E.

Kane PHONE: (703) 894-2101 1

2 3

4 5

Wo.

Date Type Duration Reason Method of Licensee System Component Cause & Corrective (hrs)

Shutting Event Code Code Action to Down Reactor Report #

Prevent Recurrence ONo entry this month.

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1: Type 2: Reason 3: Method 4:

~F= Forced

'A= Equipment Failure (explain) 1= 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= Regulator'f 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 m.2- '

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OPERATING DATA REPORT DOCKET NO.:

50-339 DATE: Feb. 1, 1994 CONTACT:

G. E. Kane PHONE: (703) 894-2101 OPERATING STATUS 1.

Uni t Name :............................... Nor th Anna 2 2.

Rtporting Period:........................ J a nua ry 1994 3.

Licensed Thermal Power (MWt):.............

2893 4.

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

947 5.

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

907.

6.

Maximum Dependable Capacity (Gross MWe):..

935 7.

Maximum bependable capacity (Net MWe):....

B87 8.

If changes occur in Capacity Ratings (!tems 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 Y t-D Cunulative

11. Hours in Reporting Period...............................

744.0 744.0 115,128.0

12. Nunber of Hours Reactor was Cri t i cal.....................

727.9 727.9 95,101.5

13. Reactor Reserve Shutdown Hours...........................

16.1 16.1 6,429.3

14. Hours Generator On-Line..................................

714.5 714.5 94,031.9

15. Unit Reserve Shutdown Hours..............................

0.0

' O.0 0.0

16. Gross Thermal Energy Generat ed (MWH).................... 1,988,512.1 1,988,512.1 254,214,169.8

17. Gross Electrical Energy Generated (MWH).................

643,320.0 643,320.0 83,238,796.0

10. Net Electrical Energy Generated (MWH)....................

611,111.0 611,111.0 79,660,812.0

19. Unit Service Factor......................................

96.0%

96.0%

81.7%

20. Unit Availability Factor..................

96.0%

.96.0%

81.7%

21. Unit capacity Factor (using MDC Net).....................

92.6%

92.6%

76.8%

22. Unit Capaci ty Factor (using DER Net ).....................

90.6%

90.6%

76.3%

23. Forced Dutage Rate.......................................

4.0%

4.0%

5.4%

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

25. If Shutdown at end of Report Period, estimated time of Startup:

N/A

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

y Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION l

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l AVERAGE DAILY UNIT POWER LEVEL Docket No.:

50-339 Unit:

NA-2

- 4

'Date:

Feb.'1, 1994'

.' Contac t :-

G. E.

Kane

. Phone:

(703) 894-2101

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MONTH:

January 1994 1

j DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER i

LEVEL (MWe-Net)

LEVEL.' (MWe-Net) l l

1 893 17 892' l

2 876 18.

'891

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894 19 892-4 894 20 893-5 893 21-892 6

893 22

-240 4

7 893 23:

95

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8 893 24 601' 9

893 25 888 10 893 26 888 1

11 893 27 877' 12 892 28 881 13 479 29 892 14 891 30' 893 15 893 31 893 16 892 I

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l Instructions:

On this format, list the average: daily unit. power leve1~in-MWe-Net for each day in'the reporting month.

Compute to the nearest l

whole megawatt.

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NORTH ANNA POWER STATION UNIT NO.:

2 MONTH:

January

SUMMARY

OF OPERATING EXPERIENCE Page 1 of 1 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 January 01, 1994 0000 Began month with unit at 100% power, 940 MWe.

January 12, 1994 2328 Commenced unit ramp-down to 50%

power due to having only one operating feedwater pump.

One pump previously out of service for pre-planned maintenance.

Second pump required shut-down due to excessive seal leakage.

January 13, 1994 0136 Unit stable at 50% power, 470 MWe.

2046 Corrective maintenance complete.

Commenced unit ramp-up.

January 14, 1994 0422 Unit stable at 100%-power, 937 MWe, January 22, 1994 0644 Automatic reactor trip due to f ailed -

closed main feedwater regulating valve.

2250 Corrective maintenance complete.

Unit entered Mode 2, January 23, 1994 1127 Unit entered Mode 1.

1211 Main generator on-line.

Commenced unit ramp-up to 30% power.

1403 Unit stable at 30% power, 246 MWe.

January 24, 1994 0750 Commenced unit ramp-up.

1844 Unit stable at 99% power,.930 MWe.

January 29, 1994 0847 Commenced throttling first. point feedwater heater outlet valves, in addition to previously opening first point feedwater heater bypass valves, to increase reactor power to 100%.

1456 Unit stable at 100% power, 935 MWe.

January 31, 1994 2400 Ended month with unit at 100% power, 940 MWe, t

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I UFIT SHUTDOWN AND POWERLREDUCTIONS' Explanation Sheet 4

l Docket No.: 339 1

Report' Month January Unit Name:

NA-2 Year:

1993 Datest February 1.'1994

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Contact:

G.

E.

Kane-l

1. 94-01 January 12, 1994 Commenced unit ramp-down to.50% power duento.only-1 c

3 one operating feedwater pump;at 2328 hours0.0269 days <br />0.647 hours <br />0.00385 weeks <br />8.85804e-4 months <br />.

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January 13, 1994 Unit stable at 50% power,'470 MWe. at' 013 6 ' hours ;

Corrective maintenance complete'and commenced unit-ramp-up at 2046 hours0.0237 days <br />0.568 hours <br />0.00338 weeks <br />7.78503e-4 months <br />.

2 January 14,.1994

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Unit stable at 100% power,.937 MWe at~0422'hoursi 4

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1. 94-02 January 22, 1994 Automatic reactor trip.due'to failure.of "A"cmain feedwater regulating-valvez at:

0644 hours0.00745 days <br />0.179 hours <br />0.00106 weeks <br />2.45042e-4 months <br />.

Corrective maintenance: complete and : unit :. entered -

Mode 2 at 2250-hours.

January 23, 1994 Unit entered Mode 1 at 1127 hours0.013 days <br />0.313 hours <br />0.00186 weeks <br />4.288235e-4 months <br />.. Main generatorL on-line at 1211. hours.

January 24, 1994 Unit stable at 99% power, 930 MWe:at 1844' hours.

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.:

50-339 UNIT NAME:

NA-2 DATE: Feb.

1, 1994 REPORT MONTH: January. 1994 CONTACT:

G.

E.

Kane PHONE: (703) 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 94-01 940112 F

N/A N/A N/A SJ P

Excessive seal leakage of 2-FW-P-1C required pump shutdown and reduction in power to 50% power.

94-02 940122 F

29.5 3

50-339, 94-003-00 SJ FCV Automatic reactor trip due to failed closed MFRV.

1: Type 2: Reason 3: Method 4:

F= Forced A= Equipment Failure (explain) 1= 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) 5xhibit H - Same Source

.