ML20070F291

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

ML20070F291
Person / Time
Site:	North Anna
Issue date:	06/30/1994
From:	O Hanlon J, Stall J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
94-405, NUDOCS 9407180275
Download: ML20070F291 (12)

Text

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I V1HorstA ELEcTHIC AND POWER COMPANY Hicuxoxn,Vrums:A 20261 July 12,1994 i

U. S. Nuclear Regulatory Commission Serial No.94-405 i

Attention: Document Control Desk NL&P/GSS 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 i

MONTHLY OPERATING REPORT Enclosed is the Monthly Operating Report for North Anna Power Station Units 1 and 2 i

for the month of June 1994.

i Very truly yours, Lhm

~

i J. P. O'Hanlon j

Senior Vice President - Nuclear Enclosure cc:

U.S. Nuclear Regulatory Commission l

Region ll 101 Marietta Street, NW Suite 2900 Atlanta, GA 30323 Mr. R. D. McWhorter NRC Senior Resident inspector North Anna Power Station i

l i

94o718o275 94o630 PDR ADOCK 05o00338 7p i

PDR

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

June YEAR:

1994 Approved:

d Station Manager

i OPERATING DATA REPORT i

l DOCKET No..

50-338 DATE: July 1, 1994 CONTACT: J. A. Stall PHONE: (703) 894-2101 OPERATING STATUS 1,

Un i t N anie :.........................

. North Anna 1 2.

Reporting Period:

...................... June 1994

)

3.

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

2,893 4.

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

994 1

j 5.

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

907 6.

Maximun Deperdable Capacity (Gross MWe):..

948 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. Reasons for restrictions, if any:

N/A l

This Month Y-t-D Cumulative i

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

720.0 4,343.0 140,459.0

12. dutiber of Hours R eac tor was cr i t i ca l.....................

720.0 4,343.0 104,748.7 j

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

0.0 0.0 6,826.8 j

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

720.0 4,343.0 101.783.9 4

15. Un i t Reserve Shut down Hours..............................

0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH)..

................ 2,063,440.9 12,540,474.2 270,992,710.6

17. Gross E l ect rical Energy Generated (MWH)..................

679,205.0 4,136,180.0 89,051,537.0

18. Net E l ec t r i ca l Energy Generat ed (MWH)....................

644,883.0 3,935,839.0 84,342,424.0

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

100.0%

100.0%

72.5%

20. Uni t A ve l l abi l i t y F ac t or................................

100.0% '

100.0%

72.5%

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

99.5%

100.7%

67.2%

22. Uni t Capac i t y F ac t or (usi ng DE R Net ).....................

98.8%

99.9%

66.2%

23. F orc ed Ou t a g e R a t e.......................................

0.0%

0.0%

10.3%

24. Shutdowns Scheduled over Next 6 Months (Type, Date, and Duration of Each)_ Refueling, 09/09/94, 48 days

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

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

Forecast Achieved INITIAL CRITICALITY

!NITIAL ELECTRICITY COMMERCIAL OPERATION

l AVERAGE DAILY UNIT POWER LEVEL 1

l Docket No.:

50-338 Unit:

NA-1 Date:

July 1, 1994

Contact:

J. A.

Stall Phone:

(703) 894-2101 MONTH:

June 1994 DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

LEVEL (MWe-Net) 1 908 17 904 2

906 18 903 3

905 19 902 4

906 20 902 5

905 21 901 6

904 22 901 7

904 23 899 8

903 24 879 9

905 25 880 10 899 26 871 11 906 27 867 12 905 28 866 13 904 29 862 14 903 30 860 15 904 16 903 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.

1

NORTE ANNA POWER STATION UNIT NO.:

1 MONTH:

June

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 June 01, 1994 0000 Began month with unit at 100% power, 953 MWe.

i June 10, 1994 0833 Commenced unit ramp-down for TVFT.

0934 Unit stable at approximately 90% power, 867 MWe for TVFT.

1017 TVFT completed satisfactorily.

1020 Commenced unit ramp-up to 100% power.

1343 Unit stable at 100% power, 956 MWe.

June 23, 1994 2333 Commenced unit coastdown in preparation for the Fall refueling outage.

i June 30, 1994 2400 Ended month with unit at 96% power, 905 MWe.

l

Page 1

of 1

UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.:

50-338 Report Month June Unit Name:

NA-1 Year:

1994 Date: July 1, 1994 l

Contact:

J.

A.

Stall

• No entry this month.

I I

6

9 UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.:

50-338 UNIT NAME:

NA-1 DATE: July 1, 1994 REPORT MONTH: June 1994 CONTACT:

J.

A.

Stall PHONE: (703) 894-2101 4

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.

I I

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 l

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 I

,___ _~._....

1 t

t OPE 2ATING DATA REPORT DOCKET No.:

50-339 DATE: July 1, 1994 CONTACT:

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

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

R epor t i rsi Per i od:......................... J Lre 1994 3.

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

2893 4 Nameplate Rating (Gross MWe):.............

979 5.

Design Electrical Rating (Net MWe):

907 6.

Maximum Dependable capacity (Gross MWe):..

935 7.

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

887 9

8.

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

N/A t

9.

Power level to which restricted, if any (Net MWe): ___N/A l

10. Reasons for restrictions, if any:

N/A This Month Y-t-D Cumulative

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

720.0 4,343.0 118,727.0

12. Number of Hours R eact or was Cri t ica l.....................

545.7 4,142.9 98,516.5

13. acac t or R eserve shut down Hours...........................

69.9 95.7 6,508.9 i

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

541.8 4,101.3 97,418.7

15. Uni t R eserve Shut down H ours.............................

0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH)..................

1, 485,673. 9 11,527,386.5 263,853,044.2

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

477,288.0 1,tA1.760.0 86,359,236.0

10. Net E l ect ri cal E nergy Generat ed (MWH)....................

452,180.0 3,577,479.0 82,627,180.0

19. Un i t s erv i c e F ac t o r......................................

75.3 %

94.4%

82.1%

20. Uni t Ava i l abi l i ty f act or.................................

75. 3 %

94.4%

82.1%

21. Uni t Capac i t y F ac t or ( us i ng MDC N e t ).....................

70.8%

92.9%

77.3%

22. Uni t Capac i ty F act or (us i ng DE R Net ).....................

69.2%

90.8%

76.7%

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

24.8%

5.6%

5.4%

24. Shutdowns Scheduled Dver 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):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

AVERAGE DAILY UNIT POWER LEVEL Docket No.:

50-339 Unit:

NA-:1 Date:

July 1, 1994

Contact:

J.

A.

Stall Phone:

(703) 894-2101 MONTH:

June 1994 DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

LEVEL (MWe-Net) 1 650 17 886 2

0 18 885 3

0 19 885 4

0 20 884 5

0 21 884 6

0 22 885 7

0 23 885 8

0 24 885 9

128 25 885 10 345 26 885 11 887 27 886 12 888 28 887 13 888 29 886 14 888 30 887 15 887 36 886 i

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.

l NORTH ANNA POWER STATION I.

UNIT NO.:

2 MONTH:

June S_UMMARY OF OPERATING EXPERIENCE Page 1 of 1 Listed below in chronological sequence is a summary of operating j

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

l Date Time Data I

June 01, 1994 0000 Began month with unit at 100% power, 940 MWe.

1454 Commenced unit ramp-down to bring unit off-line to repair leakage on the B RCP seal injection line.

l 2035 Main generator off-line.

2045 Unit entered Mode 2.

2053 Unit entered Mode 3.

I 2121 Notification of Unusual Event (NOUE) declared due to a RCS leakage rate requiring unit shutdown in accordance with Technical Specification 3.4.6.2.

June 02, 1994 0353 Unit entered Mode 4.

0943 Unit entered Mode 5.

Terminated NOUE.

June 06, 1994 1805 Unit entered Mode 4 after completion of B RCP repairs.

June 08, 1994 0828 Unit entered Mode 3.

June 09, 1994 0312 Unit entered Mode 2.

0628 Unit entered Mode 1.

0650 Main generator placed on-line, ramping unit to 30% power.

0917 Unit stable at 30%

power, 240 MWe for I

chemistry hold.

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1

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June 10, 1994 1538 Commenced unit ramp-up after release from chemistry hold.

June 11, 1994 0230 Unit at 100% power, 935 MWe, with first point feedwater heater bypass valves full open and k

the heater discharge valves partially closed.

June 30, 1994 2400 Ended month with unit at 100% power, 934 MWe.

1

Page 1

_of 1

UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.:

50-339 Report Month June Unit Name:

NA-2 Year:

1994 Date: July 1.

1994

Contact:

J.

A.

Stall

1. 94-05 June 01, 1994 Commenced unit ramp-down to remove unit from line due to leakage from B RCP seal injection line at 1454 hours0.0168 days <br />0.404 hours <br />0.0024 weeks <br />5.53247e-4 months <br />.

Main generator off-line at 2035 hours0.0236 days <br />0.565 hours <br />0.00336 weeks <br />7.743175e-4 months <br />.

Unit entered Mode 2 at 2045 hours0.0237 days <br />0.568 hours <br />0.00338 weeks <br />7.781225e-4 months <br />.

Unit entered Mode 3 at 2053 hours0.0238 days <br />0.57 hours <br />0.00339 weeks <br />7.811665e-4 months <br />.

Notification of Unusual Event declared at 2121 hours0.0245 days <br />0.589 hours <br />0.00351 weeks <br />8.070405e-4 months <br />.

June 02, 1994 Unit entered Mode 4 at 0353 hours0.00409 days <br />0.0981 hours <br />5.83664e-4 weeks <br />1.343165e-4 months <br />.

Unit entered Mode 5 and terminated NOUE at 0943 hours0.0109 days <br />0.262 hours <br />0.00156 weeks <br />3.588115e-4 months <br />.

June 06, 1994 Unit entered Mode 4 at 1805 hours0.0209 days <br />0.501 hours <br />0.00298 weeks <br />6.868025e-4 months <br />.

June 08, 1994 Unit entered Mode 3 at 0828 hours0.00958 days <br />0.23 hours <br />0.00137 weeks <br />3.15054e-4 months <br />.

June 09, 1994 Unit entered Mode 2 at 0312 hours0.00361 days <br />0.0867 hours <br />5.15873e-4 weeks <br />1.18716e-4 months <br />.

Unit entered Mode 1 at 0628 hours0.00727 days <br />0.174 hours <br />0.00104 weeks <br />2.38954e-4 months <br />.

Main generator on-line at 0650 hours0.00752 days <br />0.181 hours <br />0.00107 weeks <br />2.47325e-4 months <br />.

UNIT SHUTDOWNS AND POWER REDUCTIONS

~.

DOCKET NO.:

50-339 UNIT NAME:

NA-2 DATE: July 1, 1994 REPORT MONTH: June 1994 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 94-05 940601 F

178.2 A

1 N2-94-005-00 AB P

Unit shutdown to repair leakage from B RCP seal injection line.

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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