ML19351D878

Monthly Operating Repts for Oct 1980

ML19351D878
Person / Time
Site:	North Anna
Issue date:	11/09/1980
From:	Neufer A, Woodsmall W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML19351D877	List: ML19351D876 ML19351D878
References
NUDOCS 8011200300
Download: ML19351D878 (9)

Text

{{#Wiki_filter:. O 4 VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION MONTHLY OPERATING REPORT MONTH oc tn ho,. YEAR m 9 I l l .i APPROVED: STATION MANAGER V 8011200 300 _. ~,, _, - .y 9

OPERATING DATA REPORT 50-338 DOCKET NO. DATE 11-5-80 COMPLETED BY W. A. Woodsmal1, II: TELEPHONE (703) 894 5151 ext. 360 OPFRATING STATUS North Anna Unit 1 Notes

1. Unit Name:

2. Reporting Period:

October 1980 2775

3. Licenwd Thermal Power (MWO:

4. Nameplate Rating (Gross MWe):

947

5. Desagn Electrical Rating (Net MWe):

907

6. Maximum Dependable Capacity-{ Gross MWe):

880

7. Maximum Dependable Capacity (Net MWe):

850

8. If Changes Occur in Capr. city Ratings (Items Number 3 Through 7) Since IJst Report, Give Reasons:

N/A

9. Power Level To Which Restricted.lf Any (Net MWe):

N/A

10. Reasons For Restrictions.If Any:

N/A This Month Yr..to.Date Cumulative I1. Hours la Reporting Period 745 7 120 91 no7

12. Number Of Hours Reactor Was Critical 741.9 6.435.6 16.600.8

13. Reactor Reserve Shutdown Hours 3.1 64.3 213.1

14. Hours Generator On.Line 729.1 6.223.2 16.276.4

15. Unit Reserve Shutdown Hours 0

0 0

16. Gmes Thermal Energy Generated (MWii) 1.843.946 15.889.288 42.164.?n1

17. Gross Electrical Energy Generated (MWH) 590,995 4.707.300 12.560.746 5,002,663 13.349.012

18. Net Electrical Energy Generated (MWH) 559,612

19. Unit Service Factor 97.9 85.0 77.2

20. Unit Availability Factor 97.9 85.0 77.2

21. Unit Capacity Factor (Using MDC Net) 88.4 75.7 70.0

22. Unit Capacity Factor (Using DER Net) 82.8 70.9 65.6

23. Unit Forced Outage Rate 2.I 8.3 6.3

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

Refuelina. Trit and firo nrntnetinn mndificatinne. nocomhor m, 1990; E b Meeks

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

N/A

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

Forecast Achieved INITIAL CRITICALITY INITIA L ELECTRICITY COMMERCIAL OPERATION N/77 i

AVERAGE Da:LY UNIT POWER LEVEL DOCKET NO. 50-338 UNIT NA-1 11-5-80 DATE COMPLETED BY W. A. Woodsmall, III TELEPHONE (703) 894-5151 ext. 360 MONTH October DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY ?OWER LEVEL (MWe-Net) ~ (MWe-Net; 113 1 37 425 2 142 837 gg 3 522 39 841 4 840 20 841 5 842 21 845 6 841 845 22 7 817 23 845 8 840 843 24 9 842 25 838 10 851 26 846 13 852 845 27 12 852 844 28 13 851 29 847 14 846 838 30 15 811 3 841 16 19R INSTRUCTIONS On this format, list the average daily unit power levelin MWe Net for each day in the reporting month. Compute to the nearest whole megawatt. (9/77) 1

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-338 UNIT NAME h Anna 1 DATE - -80 COMPLETED BY - A. G. Neufer REPORT MONTH October 1980 TELEPHONE (703) 895-5151 ext. 221 n. .$E 3 Y Licenwe ,E-t, Cause & Correceive No. Date g 3g R ,s5 Event ?? o '8 Action to H $= 5 j ;f, Repori # EU U Prevent Recurrence c5 80-23 This shutdo wn wa s concluded o i Dctober 1 at 0615 when thc turbine tenerator was placed in service. Duration th is month 6.2 hrs. 80-24 801002 F 9.7 A* 4* N/A N/A N/A Unable to operate due to 6th point heater tube failure. Ramped unit off the line, kept reactor critical. Repaired failed tubes. 80-25 801015 N/A N/A H* N/A N/A N/A N/A Significant power reduction greater than 20% of the average daily power level. I 2 3 4 F: Forced Reason: Method: Exhibit G-Instructions S: Scheduled A Equipment Failure (Explain) I-Manual for Preparation of Data B-Maintenance of Test 2-Manual Scram. Entry Sheets for I.icensee C Refueling 3-Automatic Scram. Event ReporI (LER) File (NilRI G-D Regulatory Restriction 4-Other ( Explain 1 0161) E-Operator Training & Ucense Examination F-Administrative 5 G-Operational Error (Explain) Exhibis 1 - Same Source (9/77) Il Olher (Explain)

• See attached sheet

Page 1 of 1 UNIT SHUTDOWN AND POWER REDUCTIONS EXPLANATION SHEET DOCKET NO. 50-338 REPORT MDNTH netnhor UNIT NAME North Anna _1 YEAR 1 ann DATE 11-7-80 COMPLETED BY A. G. Neufer 80-24 (4) Reactor was kept critical and unit removed from service for repair cf leaking or failed 6th point "B" Feed Water Heater Tubes. 80-25 (H) After large or sudden power reductions the steam generator cation conductivity increases. We are required by Administrative Procedure 23 to hold reactor power at or below 30% until conductivity decreases to less than 2.00 Micrombos. We reduced the conductivity by the Feed and Bleed Method. Load was restricted to less than 50% power to comply with Technical Specification 3.2.1 Axial Flux Distribution, due to accumulation of penality points. 4

-.-.-..r-OPERATING DATA REPORT 50-339 DOCKET NO. DATE 11-S-80__ COMPLETED BY W. A. Woodsmall, II TELEPHONE (703) 894-5151 g. OPERATING STATUS NOI'5 X. Unit Name: Nnrth anna Ifni+ ?

2. Reporting Period: _DEf.C5pr 14Rn

3. Licensed Thermal Power (M Wt):

2776

4. Nameplate Rating (Gross 6We):

447

5. Design Electrical Rates (Net MWe):

907 928

6. Maximum Dependable Capacity (Gross MWe):

898

7. Maximum Dependable Capacity (Net MWe):

8. If Changes Occur in Capacity Ratings (items Number 3 Thmugh 7) Sinct '.ast Report. Give Reasons:

N/A

9. Power Level To Which Restricted.If Any I' Jet MWe):

N/A

10. Reasons For Restrictions,If Any:

N/A This Month Yr.-to-Date Cumulative

11. Hours In Reporting Period 745 1 A71 2 g72

12. Number Of Hours Reactor Was Critical 722.5 11415 7 1;935.7 13 Reactor Reserve Shutdown Hours 0

0 0

14. Hours Generator On-Line 714.3 1.228.7 1.??,1 7

15. Unit Reserve Shutdown Hours n

n n

16. Grom Thermal Energy Generated (MWH) 1.6A6.717 9_1a4 nqn 9 gan nnn

17. Gross Electrical Energy Generated (MWH) 551,312 _.

~753'332 '753.'332

18. Net Electrical Energy Generated (MWH) 522.444 70A;691 7ng 461

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

20. Unit Availat:ility Factor N/A N/A N/4

21. Unit Capacity Factor (Using MDC Net)

N/A N/A N/A

22. Unit Capacity Factor (Using DER Net)

N/A N/A N/A

23. Unit Forced Outage Rate N/A N/A N/A

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

TMI and fire Drotection modifications! Nnvomber 1-14Rnr ?? riave Mair tenance: April 1981: 11 days

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

N/A

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

Forecast Achieved INITIAL CRITICALITY 6/12/80 INITIAL ELECTRICITY 8/25/80 COMMERCIAL OPERATION 11/25/80 N/77 ) I I

AVERAGE DAILY UNIT POWER LEVEL ~ 50-339 DOCKET NO. UNIT NA-2 DAE 11-5-80 COMPLEED BY W. A. Woodsmall, III TELEPHONE (703)894-5151 ext. 36( October MONTH DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL i (MWe-Net) (MWe-Net) 648 845 37 2 632 862 gg 3 525 39 268 4 646 20 125 5 461 21 58? 6 734 22 L68 7 749 23 868 8 414 24 856 9 393 25 868 10 521 26 871 11 832 567 27 12 869 28 852 13 859 851 29 14 801 30 858 15 864 788 3, 16 857 INSTRUCTIONS On this format, list the average daily unit power levelin MWe Net for each day in the reporting month. Compute to the nearest whole megawatt. (9/77) \\

DOCKET NO. 50-339 UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME -North Anna-2 DATE 11-9-80 COMPLETED BY _A. G. Neufer REPORT MOc.;n October 1980 TELEPHONE 894-5151 - X 221 "L = c 5; "E

• EU Licemee Er E%

Cause & Currective No. Date h jj k 3j$ y Evc nt Action to f ggg Report it u) U U Prevent Recurrence H g c5 80-08 801019 F 25.2 A* 3 N/A N/A N/A Generator-Turbine / Reactor trip when 2A Station Service transformer lock out relay actuated. The relay actuated when a low side cable, on the 2A transformer, blew out. Re-paired the bad cable and returned unit to operation. 80-09 801020 F 3.5 G* 3 N/A N/A N/A Lo-Level "C" S/G while restarting the Unit, operator experience. 80-10 801031 S 2.0 B 4* N/A N/A N/A A scheduled trip occurred when the generator output breakers were opened in accordance with 2-SU-27 100% Load Reject Test. NOTE 8(1-10 t:0NTINUES THRC UGH EN[ OF THE MONTH I 2 3 4 F: Forced Reason: Method: Exhibit G -Instructions S: Scheduled A Equipment Failure (Explain) l-Manual for Pieparation of Data B.Mainter 9ce of Test 2-Manual Scram. Entry Sheets for Licensee C-Refue'.g

3. Automatic Scram.

Event Report (LER) File (NURI G-D-Regu atory Restriction 4-01her ( Explain) 016l) E-Oper stor Training & License Examinati.m F-Administ rative 5 G-Operational Error (Explain) Exhibit I - Same Source 19/77) Il-Other (Explain)

• SEE ATTACHED SHEET

Page i of i UNIT SHUTDOWN AND POWER REDUCTIONS EXPLANATION SHEET DOCKET NO. 50-339 REPORT MONTH October UNIT NAME North Anna - 2 YEAR 1989 DATE 11-9-80 COMPLETED BY A. G. Neufer 80 -08 (A) At approximately 0700 a fire occurred in 2A2 4160V/480V transformer tripping 2Al-2 & 2A2-2 480V busses. Extinguished fire and lined up alternate feeds for the lost busses through existing cross ties. At 0724 the 2A station service transformer locked out tripping the turbine, reactor and generator. Investigation revealed that one of the low side cables had blown out. Checks were performed on the transformer after splicing the cable. A check of the generator voltage regulatcr was made due to the field forcing alarm and high generator voltage at the time that the 480V XFMR tripped all checks were satisfactory. Returned unit to service. 80 -09 (G) Steam generator level controlled in manual while steam demand is increased due to turbine load increase " auto" operation not reliable until approximately 20% power. 80 -10 (4) 2-SU-27 calls for the plant to be tripped from 100% full power to check response of automatic safety systems. 1 me --,}}