ML20086K150

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

ML20086K150
Person / Time
Site:	North Anna
Issue date:	06/30/1995
From:	Stall J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML20086K154	List: ML20086K150 ML20086K164 ML20086K327
References
NUDOCS 9507200035
Download: ML20086K150 (13)

Text

,i 1

VIRGINIA POWER. COMPANY i

NORTH ANNA POWER STATION MONTHLY OPERATING REPORT MONTH:

June YEAR:

1995 1

Approved:

O Station Manager 9507200035 950713 PDR ADOCK 05000338 PDR R

OPERATING DATA REPORT l

l.

DOCKET NO.:

50-338 DATE: July 5, 1995 CONTACT: J. A. Stall l

PHONE: (703) 894 2101 OPERATING STATUS i

i 1.

Unit Name:................................ North Anna 1 2,

Reporting Period:........................ June 1995 3.

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

2,893 4.

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

994 5.

01 sign Electrical Rating (Net MWe):.......

907

(

6.

Mrximum Dependable Capacity (Gross MWe):..

948 7.

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

900 1

1 S.

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. R2asons for restrictions, if any:

N/A This Month Y-t-D Cumulative

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

720.0 4,343.0 149,219.0

12. hanber of Hours Reac t or was Cr i t i cal......................

720.0 4,321.6 112,769.4

13. Reac tor Reserve Shutdown Hours..............

0.0 20.9 6,951.4

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

720.0 4,316.8 109,770.5

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

0.0 0.0 0.0 j

16. Gross Thermal Energy Generated (MWH)...................... 2,082,164.1 12,421,268.6 292,606,848.5

17. Gross E lec t ri cal Energy Generated (MWH)...................

684,018.0 4,086,277.0 96,161,897.0

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

650,019.0 3,887,458.0 91,089,744.0

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

100.0%

99.4%

73.6%

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

100.0%

99.4%

73.6%

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

100.3%

99.5%

68.3%

i

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

99.5%

98.7%

67.3%

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

0.0%

0.6%

9.6%

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 Consnercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

i

?

AVERAGE DAILY UNIT POWER LEVEL i

Docket No.:

50-338 Unit:

NA-1

}

Date:

Julv 5, 1995 J

Contact:

J. A.

Stall Phone:

(703) 894-2101 MONTH: June 1995 DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL (MWe-Net, LEVEL (MWe-Net) 1 904 17 303 2

904 18 903 3

904 19 902 4

904 20 902 5

904 21 903 6

904 22 902 7

904 23 894 8

904 24 903 9

904 25 902 b

10 904 26 902 11 903 27 902 12 903 28 903 13 903 29 903 14 903 30 902 15 903 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.

's

NORTH ANNA POWER STATION 1

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

June 23, 1995 0939 Commenced ramping unit from 100% power, 950 MWe for performance of Turbine Valve Freedom Test (TVFT).

1030 Unit stable at 90% power, 865 MWe.

1148 Turbine Valve Freedom Test completed satisfactory.

1200 Commenced ramping unit from 90% power, 861 MWe following TVFT.

1331 Unit stable at 100% power, 950 MWe.

June 30, 1995 2400 Ended month with unit at 100% power, 938 MWe.

1

e Page 1

of 1

UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.:

50-338 Report Month June Unit Name:

NA-1 Year:

1995 Date: Julv 5.

1995

Contact:

J.

A.

Stall No entry this month.

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.:

50-338 UNIT NAME:

NA-1 DATE: July 5, 1995 REPORT MONTH: June 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 No Entry This Month O

4 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

OPERATING DATA REPCRT DOCKET NO.:

50-339 DATE: July 5, 1995 CONTACT:

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

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

Rrporting Period:......................... June 1995 3.

Li censed Therma l Power (MWt ):.............

2893 4.

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

979 5.

Dzsign Electrical Rating (N2t MWe).......

907 6.

Mixinum Dependable capacity (Gross MWe):..

935 7.

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

887 8.

If changes occur in Capacity Ratings (!tems 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 This Month YtD Cumulative

11. Hv 7 in Reporting Period.................................

720.0 4,343.0 127,487.0

12. NLam r of Hours Reac t or has Cr i t i cal......................

720.0 2,732.7 105,666.2

13. Reac tor iteserve Shutdown Hours...........................

0.0 1.3 6,510.2

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

707.4 2,700.9 104,536.6 1

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

0.0 0.0 0.0

)

I

16. Gross Thermal Energy Genera t ed (MWH )..................... 1,849,601.9 6,724,738.1 283,340,702.1

17. Gross E l ect r i cal Energy Generat ed (MWH)...................

605,837.0 2,193,537.0 92,670,394.0

18. Net Elec t rical Energy Generat ed (MWH).....................

573,605.0 2,074,464.0 88,614,432.0

]

19. Unit Service factor...........................

98.2%

62.2%

82.0%

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

98.2%

62.2%

82.0%

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

89.8%

53.9%

77.3%

22. Uni t capac i ty F ac t or (usi ng DE R Net )......................

87.8%

52.7%

76.6%

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

0.0%

0.0%

5.0%

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 Status (Prior to Commercial Operation):

Forecast Achleyed IN!11AL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION r

=.

4:

1 AVERAGE DAILY UNIT POWER LEVEL l

'l Docket No.:

50-339 Unit:

NA-2 Date:

Julv 5, 1995

Contact:

J.

A.

Stall Phone:

(703) 894-2101 j

f 9

MONTH: June 1995 i

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

LEVEL (MWe-Net) 1 84 17 910 2

184 18 909 3

299 19 908 4

586 20 908 5

728 21 907 6

799 22 907 7

733 23 908 8

733 24 909 l

9 759 25 908 l

10 908 26 904 11 909 27 820 12 909 28 910

-l 13 910 29 911 14 910 30 909 15 911 16 910 q

t 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, u

1 1

NORTH ANNA POWER STATION UNIT NO.:

2 MONTH:

June

SUMMARY

OF OPERATING EXPERIENCE Page 1 of 2 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, 1995 0000 Began month with unit stable at 4.7% Reactor power in Mode 2, waiting for chemistry hold to clear to increase power and go on line following 1995 Refueling / Steam Generator Replacement outage.

June 01, 1995 0931 Unit entered Mode 1.

1239 Unit placed on-line.

Commenced ramp-up to 30%

power.

1323 Unit stable at 30% power, 231 MWe.

June 03, 1995 0940 Commenced unit ramp-up following release from Chemistry hold.

Unit at 30% power, 231 MWe.

1445 Unit stable at 50% power. Suspended unit ramp-up due to high sulfate concentrations in Steam Generators.

June 1,

1995 0339 Chemistry hold cleared.

Commenced unit ramp-up.

1010 Unit stable at 74.5%

power, 707 MWe for Chemistry hold.

June 05, 1995 1048 Cleared Chemistry hold.

Commenced unit ramp-up.

Unit at 75% power, 718 MWe, 1228 Suspended unit ramp-up due to Chemistry Action Level I

on sodium in "A"

and "C"

Steam Generators.

Unit at 81.5% power, 779 MWe.

1343 Cleared Action Level for Steam Generator chemistry.

Commenced unit ramp-up.

1601 Unit stable at 88%

power (nuclear instrumentation) and 100%

power (delta temperature).

June 06, 1995 0155 Commenced unit ramp-up following nuclear instrumentation calibration and adjustment.

Unit at 88.3% power, 843 MWe.

I

~

SUMMARY

OF OPERATING EXPERIENCE Page 2 of 2 June 06, 1995 0410 Secured unit ramp-up to allow power level verification.

Unit at 96% power (nuclear instrumentation) and 95% power (calorimetric),

900 MWe.

1435 Commenced unit ramp-down due to decreasing Main Condenser vacuum.

1512 Unit stable at 84 % ' power, 782 MWe.

Main Condenser vacuum returning to normal.

1800 Chemistry hold cleared.

All secondary-parameters within specifications.

Commence condenser waterbox leakage testing.

June 09, 1995 1645 Commence power increase after waterbox maintenance.

June 10, 1995 0023 Unit stable at 100% power, 948 MWe.

June 27, 1995 1228 Commenced ramping unit off-line due to failure of "B" Solid State Protection PT (action of T.

S.

3.3.1.1 and 3.3.2.1).

1 1413 Unit ramp-down secured at 33% power, 266 MWe, 1416 "B"

Train of Solid State Protection declared operable.

1438 Commenced unit ramp-up to 100% power.

Unit at 34.5% power, 270 MWe.

1743 Stopped unit ramp-up for calorimetric calibration of nuclear instrumentation.

Unit at 90% power, 857 MWe.

1750 Commenced unit ramp-up to 100% power.

1835 Unit stable at 100% power, 951 MWe.

June 30, 1995 2400 Ended month with unit stable at 100% power, 950 i

Mwe.

Page 1

of 1

UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.:

50-339 f

Report Month June Unit Name:

NA-2 Year:

1995 Date: July 5, 1995

Contact:

J.

A.

Stall

1. 95-02 Power reduction initiated from 100% power due to failure of "B"

Solid State Protection Testing on June 27, 1995 at 1228 hours0.0142 days <br />0.341 hours <br />0.00203 weeks <br />4.67254e-4 months <br />.

Ramp terminated at 33% power June 27, 1995 at 1413

hours, i

l

DOCKET NO.:

50-339 UNIT NAME:

NA-2 DATE: July 5, 1995 REPORT MONTH: June 1995 CONTACT:

J.

A.

Stall PHONE: (703) 894-2101 1

2 3

4 5

3 No.

Date Type Duration Reason P-athod of Licensee System Component Cause & Corrective (hrs)

Shutting Event Code code Action to y

Down Reactor Report #

Prevent Recurrence 6

95-02 950627 F

0 B/A 5

N/A N/A N/A N/A g

y i

En G

1: Type 2: Reason 3: Method 4:

3 F= Forced A= Equipment Failure (explain) 1= Manual Exhibit F-Instructions S= Scheduled B= Maintenance or Test 2= Manual Scram for preparatict' tta f

C= Refueling 3= Automatic Scram Entry Sheets

-_ __censee M

D= Regulatory Restriction 4= Continuations Event Report (LER) File y

E= Operator Training & License Examination 5= Load Reduction (NUREG-0161)

.it F= Administrative 9=Other gy G= Operational Error 5:

N h-H=Other (explain)

Exhibit H - Same Source M

'9 y

e i

l 1

i Corrected Page May 1995 North Anna Monthly Operating Report i

i i

i i

i