ML19339B649

Revised Monthly Operating Rept for Sept 1980

ML19339B649
Person / Time
Site:	North Anna
Issue date:	10/24/1980
From:	Woodsmall W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML19339B648	List: ML19339B647 ML19339B649
References
NUDOCS 8011070377
Download: ML19339B649 (4)

Text

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VIRGINIA ELECTRIC AND POWER COMPANY NORTH /NNA POWER STATION MONTHLY OPERATING REPORT MONTH September YEAR 1980 (Revised)

APPROVED:

• (

STATION MANAGER U

1. • 11070gyy

i OPERATING DATA REPORT 50-339 DOCKET NO.

DATE 10/74/R0 COMPLETED BY _ W. A. Woodsmall, II TELEPHONE 703-894-5151 OPERATING STATUS Notes

1. Unit Name:

North Anna

2. Reporting Period:

September 1980 (Revised)

Line 14 Revised

3. Licensed Thermal Power (MWt): _777A

4. Nameplate Rating (Gross MWe):

947 907

5. Design Electrical Rating (Net MWe):

6. Maximum Dependable Capacity (Gross MWe):

07R 898

7. Maximum Dependable Capacity (Net MWe):

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

N/A -

9. Pcwer LevelTo Which Restricted.lf Any(Net MWe):

NfA

10. Reasons For Restrictions,if Any:

N/A k

This Month Yr.-to-Date Cumulative

11. Hours In Reporting Period 770 2.02R p qpR

12. Number Of Hours R. actor Was Critical 476 R 1 211 9 1.213.2

13. Reactor Reserve Shutdown Hours 0

0 0

14. Hours Generator On-Line 459.4 514.4 514.4

15. Unit Reserve Shutdown Hours n

n n

615.501 659,318 659.31s

16. Gross Thermal Energy Generated (MWH)

17. Gross Electrical Energy Generated (MWH) 193.Rd6 202.0?0 70p.op0

18. Net Electrical Energy Generated (MWH) 177.547 184.109 1841109

19. Unit Service Factor N/A N/A N/A

20. Unit Asailability Factor N/A PIfA N/A tl/ A

21. Unit Capacity Factor (Using MDC Net)

N/A N/A

22. Unit Capacity Factor (Using DER Net)

N/A N/A N/A N/A N/A N/A

23. Unit Forced Outage Rate

24. Shutdowns Scheduled Over Next 6 Months (Type. Date.and Duration of Eacht:

TMI and Fire Protection Modifications:

November 1.1980: 21 days ffaintenanen-Anril 1 1o91 11 a y,e

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

M/^

26. Units in Test Status (Prior to Comrnercial Operationi:

Forecast Achiesed 6/12/80 INITIAL CRITICA LITY INITIA L ELECTRICITY 8/25/80 COMMERCIAL OPER ATION 1]/_22/80 (4/77)

I UNIT SilUTDOWNS AND POWER REDUCTIONS T

N A

7 DATE 10-27-80 COMPLETED Hy W_ A_ Wnnd wall, III REPORT MON ill %ntemher 1980 TELEPil0NE 703/894-5151 e.

E E

Licensee

,E r,

$4 Cause & Corrective jg 3

y E3 3

Action to No.

Date g

3g g55 Event g7 gU g:

g Report #

u) o Present Recurrence F

g 6

concluded 80-04 800910 F

225.0 S E E

A U G U S T

R E

)

0 R T 80-05 800916 F

3.4 A*

3 N/A N/A N/A Reactor trip / turbine trip due to low vacuum.

Vaccum was lost while removin l cover to condensate pump suction strai ier for cleaning because a valve to the strainer was not fully closed.

Valve and condensate suction strainer were cleaned.

80-06 800926 F

4.0 A*

3 N/A N/A N/A Feedwater pumps tripped tripping the reactor.

Cleaned Condensate Pump suction strainers.

80-07 800927 S

20.6 B

3 N/A N/A N/A 50% Test reactor trip per 2-SU-36.

80-08 800928 S

7.6 B

9*

N/A N/A N/A Turbine shutdown to place balancing weights on Turbine Bearing Number 9 to reduce viora cion.

I 2

3 4

F: Forced Reason:

Method:

Exhibit G Instructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B Meintenance of Test 2-Manual Scram-Entry Sheets for Licenwe C Refueling 3 Automatic Scram.

Event Repori Ill:R) File INURI'G-D-Regulatory Restriction 4-Other (Explain) 01611 E-Operator Training & License Examination F-Administrative 5

G-Operational Eeror (Explain)

Eshibit I - Same Sonice p)/77)

Il Other (Explain)

I I

Paga of 4

UNIT SHUTDOWN AND POWER REDUCTIONS 50-339 DOCKET NO.

EXPLANATION SHEET REPORT MONTH September UNIT NAME N. Anna 2 YEAR 1980 DATE 10-27-80 COMPLETED BY A. G. Neufer (703) 894-5151 80-05 A While in the process of cleaning a condensate pump suction strainer one of the strainer valves was not fully shut due to debris under the valve seat. This caused a low vacuum' condition tripping the turbine resulting in a reactor trip.

80-06 A While in new plant start-up condition, much rust and particulate is washing from secondary piping and accumulating in start-up condensate pump suction strainers.

80-08 9 Reactor not shutdown. Turbine removed from service for maintenance.

Unit 2 continues with start-up power testing with commercial operations scheduled for late flovember.

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