ML20078P401

Monthly Operating Repts for Jan 1995 for North Anna Power Station Units 1 & 2

ML20078P401
Person / Time
Site:	North Anna
Issue date:	01/31/1995
From:	Bowling M, Stall J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
95-050, 95-50, NUDOCS 9502170050
Download: ML20078P401 (12)

Text

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VIHGINIA ELucTHIC AND POWEH COMi%NY liicu x oN u, V HOINIA 20061 February 9, 1995 L'. S. Nuclear Regulatory Commission Serial No.95-050 Attention: Document Control Desk NL&P/GSS R0 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 Units 1 and 2 for the month of January 1995.

Very truly yours, MA M. L. Bowling, Manager Nuclear Licensing and Prcgrams Enclosure cc:

U.S. Nuclear Regulatory Commission Region ll 101 Marietta Street, NW Suite 2900 Atlanta, GA 30323 Mr. R. D. McWhorter NRC Senior Resident inspector North Anna Power Station 100001 9502170050 950131 PDR ADOCK 05000338 1

R PDR g

e VIRGINIA POWER COMPANY NORTH ANNA POWER STATION MONTHLY OPERATING REPORT MONTH:

Januarv YEAR:

1995 Approved:

e Station Manager

$8.4 l

.l 1

. ~._ _.- -- _. _.. _

l OPERATING DATA REPORT 1

DOCKET NO.:

50-338 DATE: February 5, 1995

'f CONTACT: J. A. Stall

(

PHONE: (703) 894-2101 j

OPERATING STATUS j

1. Unit Names................................ North Anna 1 2.. Reporting Periodi......................... January 1995 l

3.

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

2,893 j

4.

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

994 l

5.

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

907

(

6.

Maximum Dependable Capacity (Gross MWe):..

948 l

7.

Maximum Dependable capacity (Net NWe)....

900

(

l l

8.

If changes occur in Capacity Ratings (Items No. 3 thru 7) since last report, give reasonst _ N/A l

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

{

10. Reasons for restrictions, if any:

N/A J

J J

This Month YtD Ctanulative i

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

744.0 744.0 145,620.0

12. Nuder of Hours Reactor WsJ Cri t ical....................

722.6 722.6 109,170.4

13. R eac t or R eserve Shut down Hours...........................

20.9 20.9 6,951.4 l

%. Hours Genera t or 0n-L i ne.................................

717.8 717.8 106,171.5

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

0.0 0.0 0.0 l

16. Gross T herma l Energy Generat ed (MWH )..................... 2,025,556.8 2,025,536.8 282,211,116.7

{

17. Gross Elect rical Energy Generated (MWH)..................

666,422.0 666,422.0 92,742,042.0

)

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

634,019.0 634,019.0 87,836,305.0

]

19. Unit service Factor......................................

96.5%

96.5%

72.9%

l

20. Unit Avai1 ability Factor.................................

%.5%

%.5%

72.9%

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

94.7%

94.7%

67.5%

22. Uni t Capac i t y F ac t or (us i ng DL R Net ).....................

94.0%

94.0%

66.5%

23. F orc ed Out age R a t e.......................................

3.5%

3.5%

10.0%

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 $tatus (Prior to Commercial Operation):

]

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

i AVERAGE DAILY UNIT POWER LEVEL

[

Docket No.:

50-338 Unit NA-1 Date:

Februarv 5, 1995

Contact:

J. A.

Stall l

Phone:

(703) 894-2101 i

MONTH: January 1995 t

i DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL (MWe-Ne t)

LEVEL (MWe-Net) l 1

907 17 909 2

907 18 909 i

3 906 19 909 4

907 20 909 5

907 21 909 6

907 22 909

[

7 907 23 907 i

8 908 24 908 c

9 908 25 908 t

10 907 26 907 11 907 27 893 i

12 907 2S 188 l

13 898 29 365 14 907 30 903 15 909 31 907 16 910 i

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.

i t

I t

NORTH ANNA POWER STATION UNIT NO.:

,_1_

MONTH:

January

SUMMARY

OF OPERATING EXPERIENCE j

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.

j Date Time Data l

January 01, 1995 0000 Began month with unit at 100% power, 952 MWe.

I January 13, 1995 0838 Commenced unit ramp-down for TVFT. Unit at 100%

power, 955 MWe.

I 0930 Unit stable at 90% power, 869 MWe.

1022 Commenced unit ramp-up following TVFT. Unit at j

90% power, 869 MWe.

1151 Unit stable at 100% power, 955 MWe.

j January 27, 1995 1601 Automatic reactor trip due to loss of flow in j

"B" Loop.

Loss of flow caused by a loss of "B" Station Service electrical bus due to failure of breaker 15B6 to trip with a grour.d on 1-FW-P-1B2.

January 28, 1995 1238 Corrective maintenance completed.

Commenced l

reactor startup.

j 1257 Unit entered Mode 2.

1746 Unit entered Mode 1.

i 1813 Main Generator on-line. Commenced unit ramp-up to 30% power.

2019 Unit stable at 30% power, 265 MWe.

January 29, 1995 1253 Cleared all chemistry holds.

Commenced unit l

ramp-up to 100% power.

2220 Unit stable at 90%

power, 865 MWe for calorimetric calibration of nuclear instrumentation.

2244 Re-commenced unit ramp-up.

Unit at 90% power, 865 MWe.

January 30, 1995 0313 Unit stable at 100% power, 947 MWe.

January 31, 1995 2400 Ended month with unit at 100% power, 954 MWe.

. ~. -. -

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Page 1

of 1

l i

UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet i

Docket No.:

50-338 Report Month January Unit Name:

NA-1 j

i Years 1995 Date: Februarv 5, 1995

Contact:

J.

A.

Stall i

1. 95-01 January 27, 1995 Automatic reactor trip due to loss of flow in "B"

Loop at 1601 hours0.0185 days <br />0.445 hours <br />0.00265 weeks <br />6.091805e-4 months <br />.

January 28, 1995 Corrective maintenance complete and unit entered Mode 2 at 1257 hours0.0145 days <br />0.349 hours <br />0.00208 weeks <br />4.782885e-4 months <br />.

Unit entered Mode 1 at 1746 hours0.0202 days <br />0.485 hours <br />0.00289 weeks <br />6.64353e-4 months <br />.

Main Generator on-line at 1813 hours0.021 days <br />0.504 hours <br />0.003 weeks <br />6.898465e-4 months <br />.

i l

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.:

50-338 UNIT NAME:

NA-1 DATE: February 5, 1995 REPORT MONTH: January 1995 CONTACT:

J. A.

Stall PHONE: (703) 894-2101 i

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 950127 F

26.2 A

3 95-001-00 SJ BKR Automatic reactor trip due to loss of flow in "B"

Loop.

1 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

OPERATICG DA1A REPOR7 DOCKET NO.:

50-339 DATE: February 5,1995 CONTACT:

J. A. Stall PHONE: (703) 894-2101 OPERATING STATUS 1.

Unit Name:................................ North Anna 2 2.

Repor t i ng Per i od:......................... J anua ry 1995 3.

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

2893 4.

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

9 79 5.

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

907 6.

Maximum Dependable Capacity (Gross MWe):..

935 7.

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

887 8.

If changes occur in Capacity Ratings (Itens 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 l

This Month Y-t-D Cumulative

11. Hours i n Repor t ing Per i od................................

744.0 744.0 123,888.0

12. Number of Hours Reactor was Crit ical.....................

744.0 744.0 103,677.5

13. React or R eserve Shutdown Hours..........................

0.0 0.0 6,508.9 l

14. H our s G ene r a t o r On L i ne..................................

744.0 744.0 102,579.7

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

0.0 0.0 0.0 1G. Gross Thermal Energy Generated (MWH)................... 2,105,907.4 2,105,907.4 278,721,871.4

17. Gross E lect r ical Energy Generat ed (MWH)..................

682,894.0 682,894.0 91,159,751.0

18. Net E lect ri cal Energy Generat ed (MWH)....................

648,967.0 648,967.0 87,188,935.0

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

100.0%

100.0%

82.8%

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

100.0%

100.0%

82.8%

21. Uni t Capaci t y Fact or (us ing MDC Net ).....................

98.3%

98.3%

78.2%

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

96.2%

96.2%

77.6%

23. F or c ed Out a ge R a t e....................................

0.0%

0.0%

5.1%

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):_ Refueling / Steam Generator Replacement, 03/25/95, 105 days

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

N/A

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

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL DPERATION

t E

AVERAGE DAILY UNIT POWER LEVEL i

Docket No.:

50-339 Unit NA-2 Date:

Februarv 5.

1995 i

Contact:

J. A.

Stall Phone (703) 894-2101 i

i MONTH: January 1995 DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

LEVEL (MWe-Ne t) 1 889 17 890 2

890 18 890 3

890 19 887 4

890 20 869

{

5 890 21 866 6

887 22 864 i

7 890 23 860 8

890 24 857 9

890 25 840 10 891 26 839 11 890 27 834 12 890 28 830 13 890 29 829 14 890 30 830 15 890 31 821 16 891 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.

i 5

NORTH ANNA POWER STATION v

UNIT NO.:

2 MONTH:

Januarv l

i i

SUMMARY

OF OPERATING EXPERIENCE l

Page 1 of 1 l

Listed below in chronological sequence is a summary of operating i

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

Date Time Data January 01, 1995 0000 Began month with unit at 100% power, 933 MWe.

January 19, 1995 0922 Commenced unit coastdown in preparation for the March 1995 Refueling

/

Steam Generator Replacement Outage.

January 27, 1995 0830 Commenced unit ramp-down for TVFT. Unit is at i

93.4% power, 880 MWe.

0845 Unit stable at 91% power, 860 MWe.

0922 Commenced unit ramp-up following TVFT. Unit is at 91% power, 860 MWe.

0935 Unit stable at 93.4% power, 880 MWe.

j January 31, 1995 2400 Ended month with unit at 91% power, 864 MWe.

l Several small unit ramp-downs (<5% power each) i have occurred during this month to match Tave and Tref during end-of-cycle coastdown and are not individually recorded in this report.

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x..

i 1

i Q

Page 1

of a l

UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet t

Docket No.:

50-339 c

Report Month January Unit Name:

NA-2 Year:

1995 Date: Februarv 5.

1995

Contact:

J.

A.

Stall

• No entry this month.

i e

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I 1

f f

7 l

4 i

DOCKET WO.:

50-339 UNIT WAME:

NA-2

(,

DATE: February 5, 1995 REPORT MONTH: January 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 ONo entry this month.

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

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