ML20082H977

Monthly Operating Repts for Mar 1995 for North Anna Power Station

ML20082H977
Person / Time
Site:	North Anna
Issue date:	03/31/1995
From:	Bowling M, Stall J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
95-188, NUDOCS 9504180009
Download: ML20082H977 (13)

Text

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VIRGINIA ELEcTurc Ann POWER COMI%NY i

HICitMOND, VIRGINIA 20061 April 11,1995 U. S. Nuclear Regulatory Commission Serial No.95-188 Attention: Document Control Desk NL&P/ CMC RO Washington, D.C. 20555 Docket Nos. 50-338 50-339 l

License Nos. NPF-4 NPF-7 i

Gentlemen:

i VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNITS 1 AND 2 MONTHLY OPERATING REPORT t

Enclosed is the Monthly Operating Report for North Anna Power Station Units 1 and 2 for the month of March 1995.

Very truly yours, M. L. Bowling, Ma ager Nuclea Licensing and Programs Fnalosure i

cc:

U. S. Nuclear Regulatory Commission Region ll 101 Marietta Street, N. W.

Suite 2900 Atlanta,GA 30323 Mr. R. D. McWhorter NRC Senior Resident inspector North Anna Power Station 1SC058 95o4180009 95o331 DR ADOCK 05oo0338 PDR

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i VIRGINIA POWER COMPANY NORTH ANNA POWER STATION-MONTHLY OPERATING REPORT MONTH:

March YEAR:

1995 1

Approved:

JM Station Manager

l 'i OPERATING DATA REPORT' DOCKET No.:

50-338 DATE: April 5,.1995 CONTACT: J. A.~ Stall PHONE: (703) 894-2101' OPERATING STATUS 1.

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

Reporting Period:......................... March 1995 3.

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

2,893 4.

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

994 5.

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

'907 6.

Maximun Dependable Capacity (Gross MWe):..

948

7. ' Maximum Dependable capacity (Net MWe):....

900 8.

If changes occur in capacity Ratings (Itses 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. R3ctons for restrictions,' if any:

N/A This Month Y-t-D Cumulative

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

744.0-2,160.0 147,036.0'

12. Nunber of Hours Reactor was Cr i t i ca l......................

744.0 2,138.6 110,586.4

13. R: actor Reserve Shutdown Hours............................

0.0 20.9 6,951.4 -

14. Hours Generator 0n-Line...................................

744.0 2,133.8 107,587.5

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

0.0 0.0

0.0

16. Gross Thermal Energy Generated (MWH)...................... 2,138,141.0 6,107,779.9 286,293,359.8

17. Gross E lect rical Energy Generated (MWH)...................

702,980.0 2,009,047.0 94,084,667.0

18. N;t Electrical Energy Generated (MWH).....................

p S11.0 1,912,043.0 89,114,329.0

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

100.0%

98.8%

73.2%

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

100.0%

98.8% '

73.2%

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

99.9%.

98.4%

67.8%

22. Uni t Capac i ty Fact or (us ing DER Net )......................

99.2%

97.6%

66.8%

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

0.0%

1.2%

9.8%:

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 Comunercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

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l AVERAGE DAILY UNIT POWER LEVEL i

Docket No.:

50-338 Unit:

NA-1 Dates April 5.

1995

Contact:

J. A.

Stall Phone:

(703) 894-2101 i

i MONTH: March 1995 i

j a

i DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL -(MWe-Net)

LEVEL (MWe-Net) 1 907 17 844 2

907 18 829 3

900 19 907 j

4 907 20 906 5

907 21 905 6

907 22 906 l

l 7

908 23 906 l

8 907 24-898 9

907 25 906 10 907 26 905 11 907 27 905 12 908 28 905 j

13 908 29 908 j

14 908 30 908 15 906 31 909 16 836 l

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Instractions:

On this forr.at, list the average daily unit power level in MWe-Net for each d;,y in the reporting month Compute to the nearest i

whole megawatt.

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NORTH ANNA POWER STATION-UNIT NO.: _L.

MONTH:

March j

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SUMMARY

OF OPERATING EXPERIENCE Page 1 of 2 l

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 March 01, 1995 0000 Began month with unit at 100% power, 954 MWe.

(

March 03, 1995 1043 Commenced power reduction for turbine valve l

freedom test (TVFT) from 100% power, 956 MWe.

March 03, 1995 1140 Unit stable.at 90.5%, 873 MWe.

March 03, 1995 1235 Commenced ramp to 100% af ter completion of TVFT.

i March 03, 1995 1408 Unit at 100% power, 956 MWe.

March 16, 1995 0910 Commenced power reduction in preparation for 1

removing "A"

Condenser waterbox from service.

Entered Chemistry Action Level I-on all steam a

generators due' to high. secondary sulfate'

(

l concentrations.

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0939 Unit stable at 90% power, 847 MWe, 2132 Cleared Action Level I on secondary chemistry.

Commenced unit ramp-up to 100% power.

Unit at-89.5% power, 842 MWe.

2215 Unit stable at 97% power, 911 MWe.

Holding power to allow "A"

Condenser vacuum to stabilize.

March 17, 1995 0258 Commenced unit ramp-up to 100% power.

Unit at E 7% power, 914 MWe.

0324 Unit stable at 100% power, 943 MWe.

1427 Commenced power reduction in preparation ' for removing "A". Condenser waterbox from service.

Sodium levels in the feedwater were increasing.

1450 Unit stabilized at 90% power, 848 MWe.

1545 Entered action Level 1 on steam generator sulfates on all generators.

1835 Commenced power reduction to 86.9% power, 821 MWe to stabilize condenser vacuum during waterbox repairs.

2015 Cleared Action Level 1 on secondary chemistry.

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i NORTH ANNA POWER STATION UNIT NO.

1 MONTH:

March

SUMMARY

OF OPERATING EXPERIENCE Page 2 of 2 Date Time Data March 18, 1995 1315 Commenced increasing power to 98%

after completion of repairs to 1-SD-P-1C.

1547 Power stabilized at_ 98% power, 935 MWe to perform calorimetric in accordance with 1-OP-2.1.

j 1605 Commenced ramping unit to 100% power after completion of calorimetric.

2055 Unit stable at 100% power, 955 MWe, March 24, 1995 1004 Commenced power reduction for Turbine Valve Freedom Test from 100%, 953 MWe.

1055 Power stabilized at 91%, 870 MWe.

3200 Commenced power increase after completion of TVFT.

1300 Power stabilized at 100%, 953 MWe.

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

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Page 1

o f,_1 UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.: _50-338' Report Month March Unit Name:

NA-1 Year:

1995 Date: April 5.

1995

Contact:

J.

A.

Stall

• No entry this month.

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.:

50-338,-

UNIT NAME:

NA-1 DATE: April.5, 1995 REPORT MONTH: March 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 o

No 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 m..

m.

-e m-

+~4

DPERATING DATA REPORT DOCKET NO.:

50-339 DATE: April 5, 1995 CONTACT:

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

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

2.

Report i ng Per i od:.........................Ma rch 1995 3.

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

2893 4.

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

979 i

5.

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

907

'{

6.

Maximum Dependable capacity (Gross MWe):..

935 7.

Maximum Dependable Capacity (Net MWe)....

887 I

?

8.

If changes occur in capacity Ratings (Items No. 3 thru 7) since last report, give reasons: ___N/A 1

9.

Power level to which restricted, if any (Net MWe): ____N/A 10.' R:asons for restrictions, if any:

N/A This Month Y t-D Cumulative i

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11. H ours i n R epor t i ng Peri od.................................

744.0 2,160.0 125,304.0

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

5 78.0 1,994.0-104,927.5

13. R1 actor Reserve Shutdown Hours............................

1.3 1.3 6,510.2

14. Hours Generator 0n-Line...................................

577.5 1,993.5 103,829.2

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

0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH)..................... 1,145,787.1 4,874,638.6 281,490,602.6

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

375,200.0 1,587,700.0 92,064,557.0

18. N 1t E l ect ri cal Energy Genera t ed (MWH ).....................

351,308.0 1,500,859.0 88,040,827.0

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

77.6%

92.3%

82.9%

1

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

77.6%

92.3%

82.9%

21. Uni t capac i ty F actor (us i ng MDC Net )......................

53.2%

78.3%

78.1 %

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

52.1%

76.6%

77.5%

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

0.0%

0.0%

5.1%

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24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):,, Refueling / steam Generator Replacement, 03/25/95, 80 days

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

06/16/95 l

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

1 l

Forecast Achieved I~

INITIAL CRITICALITY l

INITIAL ELECTRICITY COMMERCIAL OPERATION f

I

AVERAGE DAILY UNIT POWER LEVEL-Docket No.:

50-339 Unit:

NA-2 Date:

April 5,

1995 I

Contact:

J. A.

Stall Phone:

(703) 894-2101.,

i i

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

' LEVEL (MWe-Net) 1 677 17 573 2

675 18 574 3

670 19 575 4

668 20-577 5

666 21

-577 1

6 665 22 576

]

7 663 23 575 i

8 661 24 530 9

658 25 4

10 619 26 0

11 580 27 0

12 579 28 0

13 577 29 0

14 572 30 0

15 572 31 0

16 575 Instructions:

On this format, list the average daily unit 1 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 UNIT NO.

2 MONTH:

March S13pjhB_y 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 eignificant non-load related incidents.

l Date Time Rain March 01, 1995 0000 Began month with unit at 76% power, 720 MWe in end-of-cycle coastdown.

March 24, 1995 2038 Commenced ramping unit off line for scheduled Refueling /SGRP outage.

Began at 64.7% power, 600 MWe.

2118 Unit stable at 49%, 440 MWe for performance ~ of 2-PT-23.

2124 Recommenced unit ramp-down. Unit at 49% power, 400 MWe.

2226 Unit stable at 28%, 220 MWe to perform brief from removing unit off line.

2309 Recommenced unit ramp from 28%, 220 MWe.

2351 Stabilized unit at 17%, 130 MWe due to turbine not entering " IMP OUT" mode.

March 25, 1995 0126 Unit off line for - scheduled Refueling /SGRP outage.

0200 Unit entered Mode 2.

i 0224 Unit entered Mode 3.

March 31, 1995 2400 Ended month shutdown for Refueling and for Steam Generator Replacement Outage.

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Page 1

of d UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.:

50-339 Report Month March Unit Names-NA-2 Year 1995 Date: April-5. 1995

Contact:

J.

A.

Stall I

1. 95-01 Unit shutdown for ' scheduled Refueling /SGRP outage March 24 at 2038 hours0.0236 days <br />0.566 hours <br />0.00337 weeks <br />7.75459e-4 months <br />.

Unit entered Mode 2 on March 25 at 0200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br /> and Mode 3 at 0224 hours0.00259 days <br />0.0622 hours <br />3.703704e-4 weeks <br />8.5232e-5 months <br />.

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v DOCKET'NO.:

50-339 UNIT NAME:

NA-2

-DATE: April 5,..1995*

REPORT' MONTH: March 1995

. CONTACT: J.

A.' Stall

PHONE: (703)- 894-2101.

1 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-a i 95-01-950325

'S 1992 C

1 N/A N/A N/A

-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 3= Automatic Scram-Entry Sheets for Licensee C= Refueling 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 1 Error 5:

H=Other 1(explain)

-Exhibit H - Same' Source J

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