ML20095D861

Monthly Operating Repts for Nov 1995 for North Anna Power Station

ML20095D861
Person / Time
Site:	North Anna
Issue date:	11/30/1995
From:	Bowling M, Stall J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
95-626, NUDOCS 9512140001
Download: ML20095D861 (13)

Text

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,, g VInorNIA ELecTHIC ann Powen COMPANY Ricnwoxn, VIRGINIA 20061 l

December 8,1995 U. S. Nuclear Regulatory Commission Serial No.95-626 Attention: Document Control Desk NL&OS/JHUCMC 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 November 1995 Monthly Operating Report for North Anna Power Station Units 1 and 2.

Very truly yours, j

M. L. Bowling, Manager Nuclear-Licensing and Operations Support i

Enclosure cc:

U.S. Nuclear Regulatory Commission Region 11 101 Marietta Street, NW Suite 2900 Atlanta, GA 30323 Mr. R. D. McWhorter NRC Senior Resident inspector North Anna Power Station 14000-E.

I 951214o001 95113o PDR ADOCK 0500o330 l

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VIRGINIA POWER COMPANY

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NORTH ANNA POWER STATION l

MONTHLY OPERATING REPORT i

l MONTH:

November YEAR:

1995 l

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l-Approved:

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Station Manager

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l OPERATING DATA REPORT i

DOCKET NO.:

50-338 DATE: December 5, 1995 CONTACT: J. A. Stall PHONE: (703) 894-2101 OPERATING STATUS f

1.

Uni t Name s................................ North Anna 1 I

2.

Repor t ing Period:......................... November 1995 3.

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

2,893 4.

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

994 l

5.

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

907 j

6.

Maximum Dependable Capacity (Gross MWe):..

940

. 7.

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

893 i

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 l

10. RIasons for restrictions, if any:

N/A This Month Y-t-D Cumulative l

11. Hours i n Report i ng Per i od.................................

720.0 8,016.0 152,892.0 i

12. Number of Hours Reactor was Criticat......................

720.0 7,994.6 116,442.4

13. RIact or R eserve Shutdown Hours............................

0.0 20.9 6,951.4 ik. Hours Generator 0n-Line...................................

720.0 7,989.8 113,443.5 l

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

0.0 0.0

-0.0 l-

16. Gross Thermal Energy Generated (MWH)...................... 2,082,910.7 23,043,175.1 303,228,755.0

(

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

681,454.0 7,560,281.0 99,635,901.0

18. nit Electrical Energy Generated (MWH).....................

648,739.0 7,189,904.0 94,392,190.0 i

l

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

100.0%

99.7%

74.2%

20. Uni t Avai l abi l i ty F ac tor..................................

100.0%

99.7%

74.2%

21. Uni t Capaci ty Factor (us i ng MDC Net )......................

100.9%

100.0%

69.1%

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

99.3%

98.9%

68.1%

23. Fcrced Outage Rate........................................

0.0%

0.3%

9.4%

25. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):_ Refueling Outage Scheduled for February 10, 1996, Ouration 29 Days

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

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

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION l

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AVERAGE D!TLY UNIT POWER LEVEL Lc,ket No.:

50-338 Unit:

NA-1 Date:

December 5.

1995 Contact J.

A. Stall Phone (703) 894-2101 MONTH: November 1995 DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

LEVEL (MWe-Net) 1 902 17 901 2

902 18 902 3

902 19 902 4

902 20 901 5

902 21 902 6

900 22 901 7

900 23 901 8

900 24 901 9

899 25 901 10 900 26 901

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11 900 27 902 12 900 28 902 13 900 29 902 14 901 30 901 15 901 16 901 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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NORTH ANNA POWER STATION t

UNIT NO.9 1

MONTH:

November

SUMMARY

OF OPERATING EXPERIENCE Page 1 of 1 Listed below in chronological sequence is

.a summary of operating i

.exper ences for this month which required load reductions or resulted in 3

significant non-load related incidents.

1 Date Time Data November 01, 1995 0000 Began month with unit at 100% power, 947 MWe.

November 30, 1995 2400 Ended month with unit at 100% power, 946 MWe.

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Page 1

of 1

l UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.:

50-338 Report Month November Unit Name:

NA-1 Year:

1995

.Date: December 5.

1995

Contact:

J.

A.

Stall

.f No entry this month.

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UNIT SHUTDOWN $ AND POWER.. REDUCTIONS 3.-

DOCKET NO.: ' 50-338 UNIT NAME:

NA '(

-DATE: December 5, 1995

.i REPORT MONTH: November 1995

- CONTACT: J. A.-Stall l

PHONE: (703) 894-2101

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2 3

4 5

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Date Type Duration Reason

-Method of Licensee System Component Cause & Corrective..

(hrs)

Shutting Event

-Code Code Action to Down Reactor Report-#

Prevent Recurrence o

No Entry This Month l

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r 1:. Type 2: Reason 3: Method 4-i F= Forced A= Equipment Failure (explain) 1= Manual Exhibit F'

. Instructions !

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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

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H=Other (explain)

Exhibit'H -'Same Source i

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OPERATING DATA REPORT l

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DOCKET NO.:

50 339 DATE: December 5,1995 i

CONTACT:

J. A. Stall PHONE: (703) 894-2101 j

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OPERATING STATUS 1.

Uni t N ame:................................ Nor th Anna 2 2.

Report i ng Per i od:......................... November 1995 3.

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

2893 4.

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

.979 j

5.

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

907 6.

M ximum Dependable capacity (Gross MWe):..

944 7.

Maximum Dependable Capacity (Net MWe)2....

897 8.

If changes occur in capacity Ratings (Items No. 3 thru 7) since last report, give reasons:

N/A i

9.

Power level to which restricted, if any (Net MWe):

N/A

10. Riasons for restrictions, if any:

N/A This Month Yat-D Cumulative-

11. H ours i n R eport i ng Per i od.................................

720.0 8,016.0 131,160.0

12. Number of Hours Reactor was Critical......................

694.4 6,380.1 109,313.6

13. Ryac t or Reserve Shut down Hours............................

24.8 26.1 6,535.0 i

14. Hours Generat or 0n-L i ne...................................

689.5 6,343.4 108,179.1

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

0.0 0.0 0.0

' 16. Gross Thermal Energy Generat ed (MWH)..................... 1,973,983.4 17,210,323.5 293,826,287.5

17. Gross E lect rical Energy Generat ed (MWH )...................

650,804.0 5,644,566.0 96,121,423.0

18. Nit E l ect rical Energy Generat ed (MWH).....................

619,451.0 5,355,332.0 91,895,300.0

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

95.8%

79.1%

82.5%

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

95.8%

79.1%

82.5%

21. Uni t Capac i ty Factor (usi ng MDC Net )......................

95.9%

74.9%

77.9%

22. Uni t Capaci ty Factor (usi ng DER Net)......................

94.9%

73.7%

77.2%

23. Fcreed Outage Rate........................................

4.2%

0.5%

4.9%

25. 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 i

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

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION l

AVERAGE DAILY UNIT POWER LEVEL Docket No.:

50-339 Unit:

NA-2 Date:

December 5.

1995 Contact J.

A. Stall Phone:

(703) 894-2101 MONTH: November 1995 DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

LEVEL (MWe-Net) 1 911 17 910 2

911 18 909 3

909 19 910 4

890 20 911 5

889 21 911 6

909 22 911 7

912 23 911 8

912 24 911 9

911 25 911 10 902 26 911 11 466 27 910 12 22 28 911 13 783 29 911 14 911 30 911 15 911 16 912 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.

- ~...

NORTH ANNA POWER STATION UNIT NO.:

2 MONTH:

November

SUMMARY

OF OPERATING EXPERIENCE Page 1 of 2 Listed below in chronological sequence is a summary of operating l

experiences for this month which required load reductions or resulted in significant non-load related incidents.

Reig Time Data November 01, 1995 0000 Began month with unit stable at 100% power, 959 MWe.

f November 10, 19985 0905 Commenced unit ramp-down for Turbine Valve Freedom Test.

Unit at 100% power, 951 MWe.

0938 Unit stable at 90% power, 860 MWe.

1115 Commenced unit ramp-up following Turbine Valve Freedom Test.

Unit at 90% power, 860 MWe.

1230 Unit stable at 100% power, 954.MWe.

November 11, 1995-1215 Unit trip on Power Range High Negative Flux Rate due to f ailure of 2-ED-MG-1B with 2-ED-MG-1A tagged for maintenance.

Unit in Mode 3.

November 12, 1995 1112 Commenced reactor startup following repairs to 2-ED-MG-1A and 2-ED-MG-1B.

1300 Unit entered Mode 2.

1354 Reactor critical.

1447 Unit entered Mode 1.

i 1853 Unit placed on-line.

November 13, 1995 0020 Discontinued unit ramp-up at 30% power, 235 MWe for calorimetric calibration of nuclear instrumentacion and chemistry cleanup.

0041 Unit cleared chemistry hold.

Commenced unit ramp-up.

Unit at 30% power, 235 MWe.

0145 Unit stable at 48% power, 418 MWe.

Secured ramp-up to allow starting of a second Main Feed Pump.

0322 Commenced unit ramp-up. Unit at 48% power, 418 MWe.

0431 Unit stable at 75% power, 710 MWe.

Secured unit ramp-up to place MSR reheat in service.

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NORTH. ANNA POWER. STATION UNIT NO.:

2 NONTH:

Novembe,I

SUMMARY

OF OPERATING EXPERIENCE Page 2 of 2 November 13, 1995 0512 Commenced unit ramp-up. Unit at 75% power, 710 MWe.

0530 Unit stable at 85% power, 825 MWe to perform calorimetric calibration of nuclear instrumentation.

0535 Commenced unit ramp-up. Unit at 85% power, 825 MWe.

0643 Unit stable at 91% power, 875 MWe to start Low Pressure Heater Drain Pumps.

0910 Commenced unit ramp-up. Unit at 91% power, 875

MWe, 1045 Unit stable at 100% power, 950 MWe.

November 30, 1995' 2400 Ended month with unit stable at 100% power, 956 Mwe.

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i Page 1

of __J_

-i UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.:

50-339 Report Month November Unit Name:

NA-2 Year:

1995 Date: peQember 5, 1995

Contact:

J.

A.

Stall

1. 95-01 November 11, 1995 Automatic reactor trip due. to Power Range High Negative Flux Rate caused by failure of 2-ED-MG-1B while 2-ED-MG-1A tagged for maintenance at 1215 hours0.0141 days <br />0.338 hours <br />0.00201 weeks <br />4.623075e-4 months <br />.

November 12, 1995 I

Corrective maintenance complete and unit entered Mode 2 at 1300 hours0.015 days <br />0.361 hours <br />0.00215 weeks <br />4.9465e-4 months <br />.

Unit entered Mode 1 at 1447 hours0.0167 days <br />0.402 hours <br />0.00239 weeks <br />5.505835e-4 months <br />.

Main Generator on-line at 1853 hours0.0214 days <br />0.515 hours <br />0.00306 weeks <br />7.050665e-4 months <br />.

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DOCKET NO.:

50-339 UNIT NAME:

NA-2 DATE: December 5, 1995 REPORT MONTH: November 1995 CONTACT: J. A.

Stall 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 95-01 951111 F

30.5 A

3 95-004-00 AA MG Automatic reactor trip due to Loss of "B" Control Rodi Drive System Motor Generator Set.

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)

Exhibit H - Same Source 1

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