ML20248M101

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

ML20248M101
Person / Time
Site:	North Anna
Issue date:	05/31/1998
From:	Matthews W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
98-349, NUDOCS 9806120388
Download: ML20248M101 (12)

Text

._ ._

VIHGINIA ELECTRIC AND POWEH COMI*ANY Hicanown,VIHOTNIA 20061 June 8,1998 United States Nuclear Regulatory Commission Serial No.98-349 Attention: Document Control Desk NAPS /JHL Washington, D. C. 20555 Docket Nos. 50-338 50-339 License Nos. NPF-4 NPF-7 Gers'aemen:

'/lRGINIA ELECTRIC AND PO NER COMPANY NORTH ANNA POWER STATION UNIT NOS.1 AND 2 MONTHLY OPERATING REPO'dT Enclosed is the May 1998 Month y Operating Report for North Anna Power Station Units 1 and 2.

Very truly yours,

._ n Of-UfW l

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

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

. .ouu3 i Mr. M. J. Morgan NRC Senior Resident Inspector North Anna Power Station }gI l

/

9806120388 980531 PDR ADOCK 05000338~

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t - _ _ _ _ _ _ _ - _ _ _ _ - _ _ - _ - _ _ _ _ _ -

VIRGINIA POWER COMPANY NORTH ANNA POWER STATION \

MONTHLY OPERATING REPORT j MONTH: May Year: 1998 i

4 l

1 1

I Approved:

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Site Vice President i

L___-_-___-- _ _ - - _ _ _ . - --

. '.' OPERATING DATA REPORT

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l DOCKET NO.: 50-338 DATE June 5 1998 COffrACT: W. R. Matthews PHONE: (540) 894-2101 OPERATIta3 STATUS

1. Unit Names . North Anna 1

2. Reporting Period: MAY

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

4. Nameplate Rating (Gross MWe)2. 979.74

5. Design Electrical Rating (Net MWe) . 907

6. Maximum Dependable capacity (Gross MWeli. 940

[

1 Maximum Dependable Capacity (Net MWe)s. 493

8. - If changes occur to Capacity Ratings (Items 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 1his Month Y-t-D Cumulative

11. Hours in Reporting Period. 744.0 3,623.0 174,803.0

12. Number of Nours Reactor was critical. 144.0 3,623.0 136,878.0

13. Reactor Reserve Shutdown Hours. 0.0 0.0 7,095.0

14. Hours Generator On-Line. 744.0 3,623,0 133,790.4

15. Unit Reserve Shutdown Hours. 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH). 2,151.642.1 30,417,584.5 360,952,057.0 11 Gross Electrical Energy Generated (MWH). 703,353.0 3,404,302.0 155,574,955.0 18 Net Electrical Energy Generated (MWH). 668,669.0 3,238,857.0 112,383,040.0

19. Unit Service Factor. , 100.0% 100.0% 76.5%

20. Unit Availability Factor. 100.0% 100.0% 76.5%

21. Unit Capacity Factor (using MDC Net). 100.6% 100.1% 11.9%

22. Unit Capacity Factor (using DER Net). 99.1% 98.6% 70.9%

23. Forced Outage Rate. 0.0% 0.0% 8.1%

24. Shutdowns Scheduled over Next 6 Months (Type, Date, Duration o _

Refueling Sept. 13, 1998 35 Days

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

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

l Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION l

l l

l l

L__________-______ b

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

Contact:

W. R. Matthews Phone: (540) 894-2101 MOFTH MAY 1998 DAY AVEhGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL (MWe-Net) LEVEL (MWe-Net) 1 896 17 900 2 896 18 900 3 897 19 900 4 899 20 899 5 899 21 899 6 899 22 899 7 899 23 899 8 899 24 899 9 900 25 898 10 _

900 26 898 I 11 899 27 898 l

12 900 28 899 13 901 29 898 14 900 30 897 15 900 31 897 16 900 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.

4

C.

NORTH ANNA POWER STATION UNIT NO. _1 MONTH May 1998 l

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.

l Date Time Data May 1, 1998 0000 Began the month in Mode 1 100% power, 942 Mwe.

May 31, 1998 2400 Ended the month in Mode 1 100% power, 942 Mwe.

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, OPERATING DATA REPORT DOCKET NO.: 50-339 CATE June 5 1998 CONTACT: W. R. Matthews PHONE: (540) 894-2101 OPERATING STATUS

1. Unit Names. . North Anna 2

2. Reporting Period MAY

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

4. Nameplate Rating (Gross MWe):. 979

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

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

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 II. Hours in Reporting Period. 744.0 3,623.0 153,071.0

12. Number of Hours Reactor was Critical. 696.0 2,952.8 128,668,0

13. Reactor Reserve Shutdown Hours. . 25.4 40.9 7,225.1

14. Hours Generator On-Line. 677.8 2,934.6 127,456.8

15. Unit Reserve Shutdown Hours. . 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH).. 1,873,590.7 8,152,825.2 348,946,005.2

17. Gross Electrical Energy Generated (MWH). . 608,814.0 2,656,414.0 114,158,928.0

18. Net Electrical Energy Generated (MWH). . 577,402.0 2,524,315.0 109,052,283.0

19. Unit Service Factor. 91.1% 81.0% 83.3%

20. Unit Availability Factor. . 91.1% 81,0% 33,3g

24. Unit Capacity Factor (using MDC Net). . . 86.5% 77.7% 79.2%

22. Unit Capacity Factor (using DER Net). . 85.6% 76.8% 78.5%

23. Forced Outage Rate. 0.0% 0.0% 5.04

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

26. Units in Test Status (Prior to Commercial Operation)r Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION _

i

AVERAGE DAILY UNIT POWER LEVEL l

Docket No.: 50-339 Unit: NA-2 ,

Date: June 5. 1998

Contact:

W. R. Matthews l

! Phone: (540) 894-2101 MONTH MAY 1998 DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL (MWe-Net) LEVEL (MWe-Net) 1 000 17 895 2 000 18 985 3 40 19 893 4 269 20 893 5 620 21 893 6 863 22 894 7 897 23 897 8 898 24 898 9 898 25 897 10 899 26 897 11 898 27 897 12 899 28 835

. 13 895 29 822 l 14- 898 30 891-15 896 31 895 16 896' Instructions:

On this format, list the average daily init power level in MWe-Net for each day in the reporting month. Compute to the nearest whole megawatt.

1 l

l E__________-._____-.___..________ _ - . .- J

, NORTH ANNA POWER STATION 1

UNIT NO.: 2_

l MONTH: May 1998 SUt4(ARY OF OPERATING EXPERIENCE

, Page 1 of 3 Listed below in chronological sequence is a summary of operating i experiences for this month which required load reductions or resulted in significant non-load related incidents.

l Date Time Data May 1, 1998 0000 Began the month in Mode 5.

2202 Entered Mode 4.

May 2, 1998 0410 Entered Mode 3.

2323 Entered Mode 2.

May 3, 1998 0000 Reactor is Critical.

1628 Physics testing completed. Entered Mode 1.

1814 Synchronized On the Line, Main Generator Output Breaker Closed. Commence Ramp-up.

1824 Unit at 21% Power, 90 Mwe.

1855 Unit at 27% Power, 190 Mwe. Ramp stopped due to body to bonnet leak on 2B feedwater j heater high level divert.

2040 Commence ramp to 30% Power.

2055 Unit at 30% Power, 230 Mwe. (Chemistry Hold)

May 4, 1998 0130 Chemistry Hold cleared.

Engineering Hold in progress.

1358 Engineering Hold released. Commence ramp-up.

2230 Hold ramp at 62% Power, 563 Mwe due to receiving D MSR Hi Level.

2243 Hi Level alarm cleared, Commenced ramp-up.

May 6, 1998 0156 ' Holding Power at 90% for Calorimetric and PR NI trip setpoint adjustment.

0210 Calorimetric Completed satisfactorily.

Page'2 of 3 May 6, 1998 0501 Commence ramp to 96% Power.

0650 Holding at 96% Power for Eng. Evaluation per OP 2.1 1158 Power hold released. Commence ramp to 98% Power.

l 1232 Stopped ramp at 97.5% power and completed a calorimetric.

1351 Unit at 100% Power, 945 Mwe.

May 27,1998 2255 Commence unit ramp to approximately 96-97%

power to support removing "D" Waterbox from service.

2319 Suspended ramp at 95% ?ower, 901 Mwe. "D" Waterbox removed from service 2327 Continuing ramp down due to low condenser vacuum.

May 28,1998 0003 Suspended ramp at 81.5% and 777 Mwe.

0230 Started ramp to 90% Power.

0255 Stopped ramp at 90% Power and completed  !

a calorimetric. I 0302 Commenced ramp to 98% power.  !

0343 Stopped ramp at 98% power and completed a calorimetric.

0415 Unit at 100% Power, 933.2 Mwe 0907 Commence unit rampdown to decrease condenser pressure. -

0947 Unit stabilized at 95% Power, 885 Mwe.

May 29,1997 0215 Reduced Power to 93%, 869 Mwe to maintain condenser' vacuum better than 3.5".

1602 Reduced turbine load to maintain "B" condenser vacuum <3.5". New power @ 92%, 860 Mwe.

Page '3 of 3 May 30, 1998 0054 Commenced ramping Unit to 100% Power 0118 Stopped ramp at 98% Power to perform calorimetric.

0152 Unit stabilized at 100% Power, 938 Mwe.

May 31, 1998 2400 6.,ded the at 100% Power, 938 Mwe.

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