ML19208B021

Monthly Operating Rept for Aug 1979

ML19208B021
Person / Time
Site:	Arkansas Nuclear
Issue date:	09/12/1979
From:	Pendergraft R ARKANSAS POWER & LIGHT CO.
To:
Shared Package
ML19208B020	List: ML19208B019 ML19208B021
References
NUDOCS 7909180461
Download: ML19208B021 (5)

Text

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AVER 4GE DAILY UNIT POWER LEVEL DOCKET NO 50-368 Lw!T ANO-2 D ATE 9-12-79 COMPLETED BY R.A. Pendergraft TELEPHONE 501/968-2519 Nf0 NTH August DAY AVERAGE DAILY POWER LE\ EL DAY AVERAGE DAILY POWER LEVEL W h e-Net I iywe.ser 1 388 i; 177 2 385 _

ig 75 3 381 ,, o 4 388 20 261 5 381 372 2

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376 ,, 243 7 250 ,3 165 8 360 ,4 318 9 389 412 23 to 385 26 409 in 242 ,- 408 12 0 397

,3 i3 0 356

,9 I4 0 172 3o is 100 168 3

16 173 INSTRUCTIONS On thn tormat, hst the wenge d;113 unit ,3ower lesel in \tWe Net for each day in the reporting inonth. Compure to the nearest whole mega wait.

19177) 3o1357 7 9 0 9180 'l6.L

OPERATLNG DATA REPORT DOCKET NO. 50-368 DATE 9-12-79 COMPLETED BY R.A. Pendergraft TELEPHONE 501/968-4519 OPERATING STATUS

1. Unit Nsme: Arkansas Nuclear One - Unit 2 Notes

2. Reporting Period: - August 1-31, 1979

3. Licensed Thermal Power IMht): 2815

4. Nameplate Rating (Gross MWel: 959

5. Design Electrical Rating (Net MWe): 912

6. Maximum Dependable Capacity (Gross MWe): NA

7. Maximum Dependable Capacity (Net MWe): NA '

S. If Changes Occur in Capacity Patings (Items Number 3 Through 7) Since Last Report.Gise Reasons:

None

9. Power Level To Which Restricted. lf Anv (Net MWe): None

10. Reasons For Restrictions. If Any: NA This Month Yr.-to.Date Cumulative

11. Hours In Reporting Period 744.0 -

5831.0 6575.0

12. Number Of Hours Reactor Was Critical 670.2 2352.9 27fl.8

13. Reactor Reserve Shutdown Hours 0.0 1910.6 2052.8

14. Hours Generator On Line 611.6 2106.1 2158.9

15. Unit Reserve Shutdown Hours 0.0 21.7 21.7

16. Gross Thermal Energy Generated IMWH) 763432.0 2232020.0 2276538.0 17 Gross Electrical Energy Generated (MWH) 214605.0 610753.0 616320.0

18. Net Electrical Energy Generated (MWH) 195133.0 544237.0 548221.0

19. Unit Service Factor -

20. Unit Availability Factor

21. Unit Capacity Factor (Using MDC Net, p NA Until Conmercial Operation

22. Unit Capacity Factor (Us ing DER Net)

23. Unit Forced Outage Rate -

24. Shutdowns Scheduled Oser Next 6 Months (Type. Date,and Duration of Eachi:

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

26. Umts in Test Status 1 Prior to Commercial Operation): Forecast Achieved INITIA L CRITICA LITY -

12-5-78 INITIAL ELECTRICITY -

12-26-78 COMMERCIAL OPER ATION 12/15/79 -

30118 (9/77)

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I 79-18 790807 F 6.4 A 3 NA RB CRDRVE Inadvertant Rod Drop 79-19 790811 P 30.4 A 3 NA 11J INSTRU Level Switcli Failure 79-20 790818 F 32.2 A 3 NA IA INSTRU Power Supply Interrupt to CEAC #1 I

79-21 790819 F 4.9 A 3 NA IA INSTRU Probable Open Cqntact on CEAC #2 A/D RSPT A

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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 determine whether any unreviewed safery questions are associated with the core reload (Ref. 10 CFR Section 50.59)?

Yes. Description of effects of new core leadina

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

6. Important licensing considerations associated with refueling, 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 assemblies (a) in the core and (b) in the spent fuel storage pool. a) 177 b) 0

8. The present licensed spent 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 566

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

DATE: 1989 361360

NRC MONTHLY OPERATING REPORT OPERATING

SUMMARY

AUGUST, 1979 UNIT II The 50% power plateau testing continued from the previous month. On 8/7 the unit tripped due to a control rod slipping. The unit was returned to power on 8/8 and testing continued. A trip occurred on 8/11 due to low steam generator level caused by MSR level instrumentation failure.

While returning the unit to power, a reactor trip occurred at low power.

The unit was returned to power on 8/14 and portions of the main condenser were isolated for condenser tube leak repairs while holding at a reduced power. Another trip occurred on 8/18 due to instrumentation problems when an instrument power source was changed. The reactor tripped twice during attempts to reestablish operation. The unit was returned to power on 8/20 and power operation has continued throughout the renainder of the month.

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