2CAN098503, Monthly Operating Rept for Aug 1985

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Monthly Operating Rept for Aug 1985
ML20136A720
Person / Time
Site: Arkansas Nuclear Entergy icon.png
Issue date: 08/31/1985
From: Enos J, Harrison D
ARKANSAS POWER & LIGHT CO.
To: Bassett H
NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
2CAN098503, 2CAN98503, NUDOCS 8511200015
Download: ML20136A720 (7)
v • d • e


Text

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OPERATING DATA REPORT DOCKET N0: 50-368 DATE: August, 1985 COMPLETED BY:D. F. Harrison TELEPHONE: (501) 964-3743 OPERATIt!G STATUS

1. Unit Name: Arkansas Nuclear One - Unit 2
2. Reporting Period: August 1 - 31, 1985
3. Licensed Thermal Power (MWt): 2815
4. Nameplate Rating (Gross MWe): 942.57
5. Design Electrical Rating (Net MWe): 912
6. Maximum Dependable Capacity (Gross MWe): 897
7. Maximum Dependable Capacity (Net MWe): 858
8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report, Give Reasons:
9. Power Level To Which Restricted. If Any (Net MWe): None
10. Reasons For Restrictions. If Any: None MONTH YR-TO-DATE CUMULATVE
11. Hours in Reporting Period .... 7W0 5,831.0 47,639.0
12. Number of Hours Reactor was Critical ..................... 697.0 4,071.4 33,330.7
13. Reactor Reserve Shutdown Hours ........................ 0.0 0. 0 1,430.1
14. Hours Generator On-Line . . . . . . 690.4 3,788.6 3,281.8
15. Unit Reserve Shutdown Hours .. 0.0 0.0 75.0
16. Gross Thermal Energy Generated (MWH)........................ 1,860,629.0 9,355,545.0 81,409,224.0
17. Gross Electrical Energy Generated (MWH) .............. 612,005.0 3,108,450.0 26,625,206.0
18. Net Electrical Energy Generated (MWH) .............. 582,498.0 2,935,279.0 25,345,610.0
19. Unit Service Factor .......... 92.8 65.0 67.6
20. Unit Availability Factor ..... 92.8 65.0 67.7
21. Unit Capacity Factor (Using MDC Net) .............. 91.3 58.7 62.0
22. Unit Capacity Factor (Using DER Net) .............. 85.8 55.2 58.3
23. Unit Forced Outage Rate ...... 7.2 7.6 16.3
24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
25. If Shut Down At End of Report Period. Estimated Date of Startup:
26. Units in Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION ena 8 ano 85112000d1 8."ooo%1 .

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AVERAGE DAILY UNIT POWER LEVEL 1

DOCKET-NO: 50-368 UNIT: Two DATE: August, 1985 COMPLETED BY: D. F. Harrison TELEPHONE: T501)964-3743 MONTH August DAY AVERAGE DAILY-POWER LEVEL (MWe-Net) 1 ............. 595 2 ............. 892 3 ............. 893 4 ........... . 890 5 ............. 312 6 ............. 683 7 ............. 892 8 ............. 889 9 ............. 885 10 ............ 882 11 ............ ~886 12 ............ 883 13 ............ 633 14 ............ 132 15 ............ 873 16 ............ 332 17 ............ 358-18 ............ 887 19 ............ 882 20 ............ 885 21 ............ 882 22 ............ 880 23 ............ 878 24 ............ 881 25 ............ 890 26 ............ 888 27 ............ 885-28 ............ 881 29 ............ 878 '

L 30 ............ 882 2

31 ............ 881 AVGS: 783 INSTRUCTION On this- format, list the average daily unit power level .in MWe-Net for- each a- day in reporting month.~ Compute to the nearest whole megawatt.

- _ _ . . - _ - - - - - .- - _ - _ _ _ _ _ - - . . - . . - - . . . . _ _ _ _ . . . _ _ . - _ - _ . _ - - _ - . _ _ _ _ . . - _ , _._-_n.----

b .

NRC MONTHLY OPERATING REPORT OPERATING

SUMMARY

AUGUST 1985 UNIT TWO The unit began the month escalating in power and reached 100% at 0150 hours0.00174 days <br />0.0417 hours <br />2.480159e-4 weeks <br />5.7075e-5 months <br /> on the 2nd. At 0855 hours0.0099 days <br />0.238 hours <br />0.00141 weeks <br />3.253275e-4 months <br /> on the 5th, the unit tripped on low DNBR due to CEA penalty factors generated following a lightning strike in the switchyard. The unit was placed back on line at 2353 hours0.0272 days <br />0.654 hours <br />0.00389 weeks <br />8.953165e-4 months <br /> on the 5th and reached 100% power at 1343 hours0.0155 days <br />0.373 hours <br />0.00222 weeks <br />5.110115e-4 months <br /> on the 6th. At 1727 hours0.02 days <br />0.48 hours <br />0.00286 weeks <br />6.571235e-4 months <br /> on the 13th, the unit tripped on low steam generator level when a steam generator blowdown pump failed causing a loss of condenser vacuum and a turbine trip. The unit was placed on line at 0943 hours0.0109 days <br />0.262 hours <br />0.00156 weeks <br />3.588115e-4 months <br /> on the 14th and attained 100% power on the 15th at 0250 hours0.00289 days <br />0.0694 hours <br />4.133598e-4 weeks <br />9.5125e-5 months <br />. At 0929 hours0.0108 days <br />0.258 hours <br />0.00154 weeks <br />3.534845e-4 months <br /> on the 16th, the unit tripped when a CEAC failure caused penalty factors to be generated and transmitted to the CPCs.

At 0602 hours0.00697 days <br />0.167 hours <br />9.953704e-4 weeks <br />2.29061e-4 months <br /> on the 17th, the unit was placed back on line and reached 100%

power at 2210 hours0.0256 days <br />0.614 hours <br />0.00365 weeks <br />8.40905e-4 months <br /> on the 17th, where it remained through the end of the month.

UNIT SHUTDOWNS AND POWER REDUCTIONS' REPORT FOR AUGUST, 1985 DOCKET N0 50-368 UNIT NAME ANO - Unit 2 DATE September 4, 1985 COMPLETEL BY- D. F. Harrison TELEPHONE (501) 964-3743 Method of Licensee Cause & Corrective Duration Shutting Event System Component Action to No. Date Type l (Hours) Reason 2 Down Reactor 3 Report # Code 4 Code 5 Prevent Recurrence 8511 850805 F 14.9 H 3 2LER-85-016 JC XXXXXX Unit trip on low DNBR due to CEAC penalty factors generated following a lightning strike in the switchyard 8512 850813 F 18.1 A 3 2LER-85-017 WI P Unit trip on low SG ~C level when a SG blowdown pump failed causing a loss of condenser vacuum and a turbine trip.

1 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 Sheets for Licensee C-Refueling 3-Automatic Scram. Event Report (LER) File (NUREG-D-Regulatory Restriction 4-Continuation 1022)

E-Operator Training & 5-Load Reduction 9-Other 5 License Examination F-Administrative Exhibit I - Same Source G-Operational Error (Explain)

H-Other (Explain)

- _ _ _ _ - _ _ _ _ _ _ . - - . . .,. .- - . , , - , ,,m. .,

UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT FOR AUGUST, 1985 i

DOCKET N0 50-368 UNIT NAME ANO - Unit 2 DATE September 4, 1985 COMPLETED BY D. F. Harrison l TELEPHONE (501) 964-3743 Method of Licensee Cause & Corrective Duration Shutting Event System Component Action to No. Date Type l (Hours) Reason 2 Down Reactor 3 Report # Code 4 Code 5 Prevent Recurrence l 8513 850816 F 20.6 A 3 2LER-85-018.JC XXXXXX Unit trip due to CEAC card failure.

26.8 8510 850730 F B 3 2LER-85-015 JC XXXXXX This shutdown was reported!

last month as having a duration of 22.7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />.

i This should have been 26.8) l hours. Additionally, the ;

l LER number was incorrect. l l

1 2 3 4 l F: Forced Reason: Method: Exhibit G - Instructions l S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram. Entry Sheets for Licensee l C-Refueling 3-Automatic Scram. Event Report (LER) File (NUREG-

! D-Regulatory Restriction 4-Continuation 1022) l E-Operator Training & 5-Load Reduction License Examination 9-Other s

! F-Administrative Exhibit I - Same Source l G-Operational Error (Explain)

H-Other (Explain) i i

l

  • E -

DATE: August, 1985 REFUELING INFORMATION l

[

1. Name of facility: Arkansas Nuclear One - Unit 2
2. Scheduled date for next refueling shutdown. Cycle 5 was initiated in l May 1985. The next refueling shutdown is scheduled for May 1986.

l

3. Scheduled date for restart following refueling. July 1986
4. Will refueling or resurc.ption of operation thereafter require a technical specification change or other license amendment? If answer is yes, what, in general, will there 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 safety l questions are associated with the core reload (Ref. 10 CFR Section l 50.59)?

l Cycle 6 details are still being reviewed. A modified CPC program will be installed during Cycle 5.

l

5. Scheduled date(s) for submitting proposed licensing action and supporting information. If required, submission will be by April 1986
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.

f

! A longer cycle and a change in in-core fuel managment from out-in-in j to in-in-out are planned.

7. The number of fuel assemblies (a) in the core and (b) in the spent fuel storage pool. a) 177 b) 168
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 988 increase size by 0 l 9. The projected date of the last refueling that can be discharged to the

! spent fuel pool assuming the present licensed capacity.

l

! DATE: 2003 l

t 0/

ARKANSAS POWER & LIGHT COMPANY POST OFFICE BOX 551 UTTLE ROCK, ARKANSAS 72203 (501) 371-4000 Septemb2r 15, 1985 2CAN098503 Mr. Harold S. Bassett, Director Division of Data Automation and Management Information Office of Resource Management U. S. Nuclear Regulatory Commission Washington, D. C. 20555

SUBJECT:

Arkansas Nuclear One - Unit 2 Docket No. 50-368 License No. NPF-6 Monthly Operating Report Gentlemen:

The Arkansas Nuclear One - Unit 2 Monthly Operating Report for August 1985 is attached.

Very truly yours,

. Ted Enos Ianager, Licensing JTE:MCS: sg Attachment cc: Mr. Robert D. Martir, Regional Administrator U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, TX 76011 Mr. Richard C. DeYoung Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, DC 20555

((I MEMBER MIDOLE SOUTH UTILITIES SYSTEM y

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