ML20247F444

Monthly Operating Repts for Apr 1998 for North Anna Power Station,Units 1 & 2

ML20247F444
Person / Time
Site:	North Anna
Issue date:	04/30/1998
From:	Matthews W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
98-281, NUDOCS 9805190335
Download: ML20247F444 (10)

Text

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i VIRGINIA ELECTRIC AND POWER COMI%NY Rictixown,Vanorx A 20061 l

May 8,1998 l

United States Nuclear Regulatory Commission Serial No.98-281 Attention: Document Control Desk NAPS /JHL Washington, D. C. 20555 Docket Nos. 50-338 50-339 License Nos. NPF-4 NPF-7 1

1 Gentlemen:

l VIRGINIA ELECTRIC AND POWER COMPANY l NORTH ANNA POWER STATION UNIT NOS.1 AND 2 MONTHLY OPERATING REPORT Enclosed is the April 1998 Monthly Operating Report for North Anna Power Station Units 1 and 2.

Very truly yours, 4 'BWad$

W. R. Matthews Site Vice President Enclosure Commitments made in this letter: None.

cc: U. S. Nuclear Regulatory Commission Region 11 Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta, Georgia 30303 _ ._

s.a , d D Mr. M. J. Morgan I NRC Senior Resident inspector North Anna Power Station j {'g_ [/ )

9805190335 90043030 'I' DR ADOCK O

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l VIRGINIA PONER COMPANY NORTH ANNA POWER STATION MONTELY OPERATING REPORT HONTH: April Year: 1998 l

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Approved:

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J OPERATIN3 DATA REPORT l

DOCKET Wo. : 50-338 DATE MAY b 1999 CONTACT: W. R. Matthews PHONIs (540) 894-2101 OPIAATING STATUS

1. Unit Nammt . . . . . North Anne 1

2. keportirag Periods . . . .. APSIL

3. Licensed Thermal Power (MWt):. . . 2,893 4 Nameplete llating (Gross MWels. . . 979.74

6. Design Electrical Pating (Not MWels. .... . 907

6. Maximum Depersiable Cepecity (Gross MWe) . . 940 7 Maximum Dependable Capacity (Not MWelt. . 893

8. If changes occur to Capacity 9.atings (!tems 3 thru 7) since last report, give reason #1 N/A

9. Power level to which restricted, if any (Not NWels N/A

10. Reasons for restrictions, it any: N/A This Munth Y-t-D Cumulative l 11. Hours in Reporting Period., . . 719.0 2,679.0 174,059.0 l 12. Number of Nours Reactor was critical. .. 719.0 2,879.0 136,134.0 13- Reactor Reserve shutdown Hours. ,, , . 0.0 0.0 7,095.0 14 Hours Generator On-Line., . . 119.0 2,879.0 133,046.4

15. Unit Reserve Shutdown Ecurs. . . . 0.0 0.0 0.0

16. Gross Thersini Energy Generated (MWH). . 2,079.615.4 8,265.942.4 358,800,414.9

17. Gross Electrical Energy Generated (MWH) . . 678,907.0 2,700,949.0 154,871,602.0

18. Net Electrical Knorgy Generated (MWH). . 645,992.0 2,670,188.0 111,714,371.0

19. Unit Service Factor. . .. . . 100.06 100.04 76.48

20. Unit Avaliability Factor. . . , 100.04 100.04 76.45

21. Unit Capacity Factor (using MDC Net). . . . . 100.68 100.04 71.88

22. Unit Capacity Factor (using DER Net). . . . . 99.14 99.49 70.84

23. Forced Outage late., , , . .. . . . . 0.04 0.00 8.2%

24. Shutdowns Scheduled Over Nest 6 M xths (Type, Date, Duration of Eac Refueline sept. 13, 1998 35 Days l

26. If Shutdwan et and of Report Period, estimated time of Startup: N/A

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

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Forecast Achieved I INITIAL CRITICALITY j INITIAL ELECTRICITY j COMMERCIAL OPERATION

AVERAGE DAILY UNIT POWER LEVEL Docket No.: 50-338 Unit: NA-1 Date: May 5. 1998

Contact:

W. R. Matthews Phone: (540) 894-2101 MONTH APRIL 1998 DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL (MWe-Net) LEVEL (MWe-Net) 1 897 17 898 2 897 18 899 3 898 19 900 4 898 20 901 5 859 21 899 6 E99 22 899 7 900 23 898 8 900 24 898 9 899 25 899 10 899 26 900 11 898 27 898 12 899 28 898 13 898 29 -

897 ,

1 14 901 30 896 15 898 31 898  !

16 _ _ , .

900 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.

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NORTH ANNA POWER STATION UNIT NO.: 1 MONTH April.1998 l

SUt4&RY OF OPERATING EXPERIENCE i

l' Page 1 of 1 i

Listed t>elow in chronological sequence is a summary' of operating experiences for this month which required load reductions or resulted in significant non-load related incidents.

1 Date Time- Data April 1, 1998 0000 Began the month in Mode l' at 100% power, 944 Mwe.

l April 30, 1998 2400 Ended the month in Mode 1 at 100% power, 942 Mwe.

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OPERATING DATA REPORT l

DOCFET NO. 50-339

, , DATE May 5 1998 CONTACT: W. R. Matthews PHONE: (540) 894-2101 OPERATING STATUS

1. Unit Names. North Anna 2 APRIL

2. Reporting Periods. .

3. Licensed Thermal Power (MWt) . 2,893

4. Nameplats Rating (Gross MWe) . 979 I

5. Design Electrical Rating (Net MWe). 907 q

6. Maximum Dependable Capacity (Gross MWe) . 944

7. Maximum Dependable Capacity (Net MWe):. 897

8. If changes occur to Capacity Ratings (Items 3 thru 7) since last report, give reasons: N/A i

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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 Cumulative

11. Hours in Reporting Period. . 119.0 2,879.0 152,327.0

12. Number of Hours Reactor was Critical. . 96.8 2,256.8 127,972.0

13. Reactor Reserve Shutdown Hours. 15.5 15.5 7,199.7 14 Hours Generator On-Line. 96.8 2,256.8 126,779.0

15. Unit Reserve Shutdown Hours. 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH). 221,203.2 6,279,234.5 347,072,414 5

17. Gross Electrical Energy Generated (MWH). 72,468.0 2,047,600.0 113,550,114.0

18. Net Electrical Energy Generated (MWH). 68,412.0 1,946,913.0 108,474,881.0

19. Unit Service Factor. , 13.5% 78.4% 83.2%

20. Unit Availability Factor. 13.5% 78.4% 83.2%

21. Unit Capacity Factor (using MDC Net). 10.6% 75.4% 79.2%

22. Unit Capacity Factor (using DER Net). . 10.5% 74.6% 78.5%

23. Forced Outage Rate. . . . . 0.0% 0.0% 5.0%

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, Duration of Each): NONE

25. If Shutdown at end of Report Period, estimated time of Start MAY 3 1998

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-2 Date May 5. 1998

Contact:

W. R. Matthews Phone (540) 894-2101 MONTH APRIL 1998 DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL (MWe-Net) LEVEL (MWe-Net) 1 749 17 000 2 735 18 000 3 714 19 000 4 653 20 000 5 000 21 000 6 000 22 000 7 000 23 000 8 000 24 000 9 ,,,__ 000 25 000 10 ... 00. 26 000 11 000 27 000 12 000 28 000 13 000 29 000 14 000 30 000 15 000 16 000 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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9 NORTH ANNA POWER STATION UNIT No.: 2 MONTH: April 1998 SUbHARY 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 i

April 1, 1998 0000 Began the month in Mode 1 84% power, 794 Mwe in a end of life power coastdown.

April _4, 1998' 2015 Began ramping Unit 2 offline for scheduled refueling outage. 79%-power, 760 Mwe April 5, 1998- 0000 Unit is off line.

April 5, 1998 1709 Entered Mode 5.

April 13, 1998 0556 Core offload complete.

April 21, 1998 0832 Core onload complete.

= April 25, 1998 0227 Entered mode 5.

April 28, 1998 0159 Pressurizer power operated relief valve (PORV)

.2-RC-PCV-2456 lifted twice upon starting of the "C" reactor coolant pump. RCS pressure was subsequently stabilized below the PORV lift setpoint and the~PORV reseated. A Special Report is being submitted in accordance with Technical Specifications 3.4.9.3 and 6.9.2f.

April 30, 1998 2400 Ended the month in Mode 5.

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