ML19269C894

Monthly Operating Rept for Jan 1979

ML19269C894
Person / Time
Site:	North Anna
Issue date:	02/09/1979
From:	Woods D VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML19269C893	List: ML19269C892 ML19269C894
References
NUDOCS 7902200046
Download: ML19269C894 (5)

Text

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VIRGINIA ELECTRIC AND POWER COMPAtlY NORTH ANNA POWER STATION M0tiTHLY OPERATING REPORT M0tlTl! January YEAR 1979 SUBMITTED:

A 0 SUPERINT T - OPERATIONS APPROVED:

hl MANAGERb 7 9 0 2 20 0 0 t/g;

1 OPERATING DATA REPORT DOCKET NO. 50-338 DATE Feb. 9. 1979 COMPLETED 11Y DF 1'nqqs TELEPHONE 703-894-5151 OPERATING STATUS North Anna Notes

2. Erporting Period: January 1974

3. Licensed Therrral Power (51Wt): 2775 ,

4. Nameplate Rating (Gross 51We): 947

5. Design Electrical Rating (Net 31We): 907

6. 51aximum Dependable Capacity (Gross 51We):

928

7. Maximum Dependable Capacity (Net 51We):

b90 ..

8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report. Give Reasons:

N/A

9. Power Level To Which Restricted,If Any (Net SIWE): N/A

10. Reasons For Restrictions,If Any: N/A This Month Yr.-to-Date Cumulative

11. Hours in Reporting Period 744 744 5.761

12. Number Of Hours Reactor Was Critical 640.7 640.7 5.377 5

13. Reactor Reserve Shutdown Hours 0 0 0

14. Hours Generator On-Line 640.7 640.7 5,292.4

15. Unit Reserve Shutdown Hours 0 0 0

16. Gross Thermal Energy Generated (MWH) 1,710,165 1,710,165 13,906,960

17. Gross Electrical Energy Generated (MWH) 544,465 _ _ ,

544,465 4,444,902

18. Net Electrical Energy Generated (MWH) .

513,410 513,410 4,177,990

19. Unit Service Factor 86.l 86.1 92.5

20. Unit Availability Factor 86.1 86.1 92.5

21. Unit Capacity Factor (Using MDC Net) 76.8 76.8 80.8

22. Unit Capacity Factor (Using DER Net) 76.1 76.1' 80.0

23. Unit Forced Outage Rate 13.9 13.9 2.9

24. Shutdowns Scheduled Over Next 6 Months (Type.Date,and Duration of Eachl: .'

Snubber Inspection April 1979, 1 week

25. If Shut Down At End Of Report Period, Estimatea Date of Startup:

26. Units in Test Status (Prior to Commercial Operation): Forecast Achieved INITIAL CRITICA LITY INITIAL ELECTRICITY COMMERCIAL OPERATION (0/77)

)

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-338 3 37 f!A 1 DATE Fohr"ar 9_. 1979 COMPLETED BY D. C. Woods TELEPIIONE (703)-894-5151 MONTII tlanuary 1979 -

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe Net) (MWe-Net) 805 37 807 2

808 809 18 3 19 803 805 4 20 5 802 21 806 6 801 22 808 7

• 07 23 800 806 8

9 803 25 805 _

10 803 26 806 801 472 27 12 23 803 0 13 29 805 0 14 30 is 805 0 33 806 16 e

INSTRUCTIONS On this format, list the average dauy unit power levelin MWe-Net for each day in the reporting month. Compute to the nearest whole meg:: watt.

(9/77) 2

g DOCKET NO. 50-338 UNIT SIIUTDOWNS AND POWER REDUCTIONS North Anna UNIT NAME DATE .__%0 70 l COMPLETED BY H.G.Neufer I REPORT MONTil January 1079 TEl-EPIIONE 703-R9d-6191v229 I

"L jg 3 )Y Licensee 5 +, Cause & Corrective No. Date H

g 3 Ej fE $

d jg5 jgg Event Report *:

g'!

v) U h{V g

$ Action to Present Recurrence b

78-33 790127 F 103.3 A* 1 Manual reactor, turbine generator shutdown due to excessive unidenti-fied primary plant leakage. Re-packed MOV-1700 residual heat remov-al system isolation valve, also out-age was extended for other primary and secondary maintenance.

I l

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t I

I 2 3 4 F: Forced Reason: Method: Exhibit G-Instructions S: Scheduled A Equipment Failure (Explain) 1-Manual for Preparation of Data

. B. Maintenance or Test 2-Manual Scram. Entry Sherts for Licensee C. Refueling 3.Automstic Scram. Event Report il 1:R) File INUREG-D-Regulatory Restriction 4-Other ( Explain) 0161)

E Operator Training & Ucense Examination ,

F Admmistrative 5 G-Operational Error (Explain) Exhibit I Same Source (9/77) II-Other (Explain)

• See attached sheet

Note

Outage 78-33 carried over into the month of February 1979

UtlIT SHUTDOWN Atto POWER REDUCTI0tlS EXPLAtlATION SHEET DOCKET f(0. 50-338 REPORT M0ilTH January UrlIT fiAME florth Anna YEAR 1979 DATE 2-8-79 COMPLETED BY A.G.flonfer 78-33 (A) Excessive packing gland leakage from MOV-1700, the residual heat removal system suction valve, of greater than 1 gallon per minute. Technical specifications permit primary plant unidentified leakage of 1 gpm or less.

The unitwas removed from service and the reactor shutdown at 1641. The-plant was then cooled down and depressurized. The maintenance was completed on 1-28-79 at 1940. The plant was heated to 547 F on 1-29-79 at 1245 and a leakrate calculation was performed. Again leakage was excessive. It was determined that the pressurizer spray valves were leaki:g between their bodies and bonnets. The plant was then cooled down and depressurized to allow maintenance. January shutdown 78-33 continued into February 1979.

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