ML19207B099

Monthly Operating Rept for Jul 1979

ML19207B099
Person / Time
Site:	Arkansas Nuclear
Issue date:	08/14/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:
Shared Package
ML19207B098	List: ML19207B097 ML19207B099
References
NUDOCS 7908230373
Download: ML19207B099 (5)

Text

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AVER AGE DAILY UNIT POWER LEVEL DOCKET NO. 50-368 UNIT ANO-2 DATE 8-14-79 COMPLETED BY C- N- Shivelv TELEPHONE 501/968-2519 MONTH Julv DAY AVERAGE DAILY POWER LEVEL DAY AVER AGE DAILY POWER LEVEL (MWe Net) g gwe. Net )

i 374 17 330 2 372 8 383 3 372 250 4 372 387 3

5 36 388 21 6 0 386 22 7 61 383 23 g 188 24 381 9 344 25 382 Io 373 26 382 II 393 382 27 12 379 ,3 381 13 383 381 29 _

14 387 380 -

30 15 384 3 389 16 75 INSTRUCTIONS On this r.'rmat :;st 'he f.coge h!) n u t ,s. , , ;

.e e! :n MWe Net for ea<h day ni the te; orring :nonth. f .,npure to the nearest whole mepw ar t.

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• j O O --') 7 7908230D O

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OPERATING DATA REPORT DOCKET NO 50-368_

DATE 8-14-79 COMPLETED BY C. N. Shively TELEPHONE 901'468-2519 OPERATING STATUS N

i. Unit Name: Ark m n= Nuclear One - Unit 2

2. Reporting Peri;d: .Tu l v 1-31. 1979

3. Licensed Thermal Power IMht1: 2815

4. Nameplate Rating (Gross MWe): 959

5. Design Electrical Rating (N.: MWe): 912

6. Maximum Dependable Capacity (Gross MWe): M

7. Maximum Dependable Ccpacity (Net MWe): NA

8. If Changes Oc:uc i, Capacity Ratings (items Number 3 Through 7) Since Last Report. Gise Reasons:

NONE

9. Power Level To which Restricted. !f Any (Net MWe): NONE

10. Reasons For Restrictions. !f Any: NA This Month Yr..to.Date Cumubtive

11. Hours In Reporting Period 744.0 5087.0 5831.0

12. Number Of Hours Reactor Was Critical 665.1 1682.7 2117.6 13 Reactor Resene Shutdown Hours 0.0 1910.6 2052.8

14. Hours Generator 0n.Line 656.0 1494.5 1547.3

15. Unit Resene Shutdown Hours 0.0 21.7 21.7 ~

16. Gross Thermal Energy Generated (MWH) 886475.0 1468588.0 151;166.0 17 Grow Electrical Energy Generated (MWH) 258175.0 396148.0 401715.0 -

18. Net Electrical Energy Generated (MWH) 236 89.0 349104.0 353088.0

19. Unit Service Factor 9 -

20. Unit Availability Factor

21. Unit Capacity Factor (Using MDC Net) F NA UNTIL C06NERCI AL OPERATION

22. Unit Capacity Factor (Using DER Net)

23. Unit Forced Outage Rate -

24. Shutdowns Scheduled Oser Neu 6 Months tType. Date, and Duration of Each t:

25. If Shur flown At End Of Report Period. Estimated Date of Startup: -

26. Umts in Test Status (Pnor to Commercial Operation). Forecast Achieved INITI A L CRITICA LITY -

12-5-78 INITIAL ELECTRICITY -

12-26-78 CO\lMERCI \L OPER ATION 9-20-19 -

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A DATE: July ~ 1979 REFUELING INFORMATION

1. Name of facility. Arkansas Nuclear One - Unit 2

2. Scheduled date for next refueling shutdown. 09-01-80

3. Scheduled date for restart following refueling. 12-01-80

4. Will refueling or resumption of operation thereafter require a technical specification change or other license amendment?

If answer is yes, what, in general, will these be?

If answer is no, has the reload fuel design and core configuration been reviewed by your Plant Safety Review Committee to datermine whether any unreviewed safety questions are associated with the core reload (Ref. 10 CFR Section 50.59)?

Yes. Description of effects of new core loading

5. Scheduled date(s; for submitting proposed licensing action and supporting information. 08/01/80

6. Important licensing considerations associated with refuel'ing, e.g.,

new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, new operating procedures.

NONE

7. The number of fuel asaemblies (a) in the core and (b) in the spent fuel storage pool. a) 177 b) 0

8. The present licensed spene fuel pool storage capacity and the size of any increase in licensed storage capacity that has been requested or is planned, in number of fuel assemblies.

present 486 increase size by 506

9. The projected date of the last refueling that can be discharged to the spent fuel pool assu:.ing the present licensed capacity.

DATE: 2000

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NRC S!0NTilLY OPERATING REPORT OPERATING SU5 NARY - JULY, 1979 UNIT II The 50% power plateau power escalation testing continued from the previous month. On 7/5 a trip occurred due to a main turbine condenser hotwell level instrument failure. The unit was placed back on line on 7/7, and the 50% plateau testing was continued. On 7/16, a unit trip was received as a result of a feedwater regulating valve malfunction.

During the transient, two atmospheric dmnp valves stuck open, causing low s_eam generator levels. This, in turn, actuated the Emergency Feed-water System. One feed supply valve failed to open; however, the redundant emergency feedwater train operated satisfactorily. The unit was placed back on line on 7/17, and operated until another trip occurred on 7/19 when the main feedwater pump speed was inadvertantly reduced causing low steam generator levels. The unit was placed back on line several hours later. The 50% plateau testing was resumed and continued through-out the remainder of the month.

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, _ " UNIT SIIUTDOWNS AND POWER REDUCTIONS DOCKET NO. _50-368

' r ' - l n j l l ,f 'j! j, ',]' p UNIT N AME ANO- Unit iI jg'~ DATE 8/7/79

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j,: ( l COMPLE11ED BY P N % i v o ly_

REPORT MONTil Jtt I v TELEPilONE 501/968-?519

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-, 5g 3 y $ "; Licensee Eg t Cause & Corrective No . Date 3g ( 2s5 Event g? g*'? Action to i gV

• j= 5 ~gg

~ Report a v) U g Prevent Recurrence c5 79-15 790705 F 51.6 A 3 NA ilC INSTint Condenser llotwell Level nstrumenta-tion Failure 79-16 790716 F 30.5 A 3 NA 1111 VALV0P Feedwater regula'. ion valve malfunc-tion f

79-17i 790719 F 5.9 G 3 NA NA NA Inadvertant FW flow reduction i

I 2 3 4 s

i Foi . c J Reason: Method: Exhibit G - Instructions S. A hiJule ! A-l'iguipment F.nlure (I xplain) 1 -Man ual for Preparation ol Data li-Maintenance or Test LManual Scram. Enti> Sheets for Licensee c Reinelmg 3-Automatic St rain.

L 'ent Repoit (t I R) File (Nt3RI G D Regulators Resnictioni 4-Other (Explain) 01611 1 -Operator Tranong & latense liamination l' Admimstratne 5 G Operational I rros (l xplain t Exlubit 1 - Same Source

,,;.G>t'8/7 7 ) It Oiiier (Explain) e