2CAN068406, Monthly Operating Rept for May 1984

Monthly Operating Rept for May 1984

ML20092L767
Person / Time
Site:	Arkansas Nuclear
Issue date:	05/31/1984
From:	Converse W, John Marshall ARKANSAS POWER & LIGHT CO.
To:	Bassett H NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
2CAN068406, 2CAN68406, NUDOCS 8407020003
Download: ML20092L767 (6)

Text

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OPERATING DATA REPORT DOCKET NO:

50-368 DATE:

MAY, 1984 COMPLETED BY:W.E. CONVERSE TELEPHONE:

901-964-3118 OPERATING STATUS 1.

Unit Name: Arkansas Nuclear One - Unit 2 2.

Reporting Period:

May 1-31, 1984 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:

MONTH YR-TO-DATE CUMULATVE 11.

Hours in Reporting Period....

744.0 3,647.0 36,671.0

12. Number of Hours Reactor was Critical.....................

738.5 2,969.0 24,596.1 13.

Reactor Reserve Shutdown Hours........................

0.0 0.0 1,430.1 14.

Hours Generator On-Line......

731.5 2,822.5 23,772.8

15. Unit Reserve Shutdown Hours..

0.0 0.0 75.0

16. Gross Thermal Energy Generated (MWH)........................

2,036,426.0 7,048,406.0 59,597,946.0

17. Gross Electrical Energy l

Generated (MWH)..............

680,675.0 2,350,765.0 19,367,716.0 l

18.

Net Electrical Energy Generated (MWH)..............

650,971.0 2,240,620.0 18,446,960.0 19.

Unit Service Factor..........

98.3 77.4 64.8 20.

Unit Availability Factor.....

98.3 77.4 65.0

21. Unit Capacity Factor (Using MDC Net)..............

102.0 71.6 58.6 22.

Unit Capacity Fact 1r (Using DER Net)..............

95.9 67.4 55.2

23. Unit Forced Outage Rate......

1.7 2.5 18.6 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 8407020003 840531 DR ADOCK 05000 f\\

.e AVERAGE DAILY UNIT POWER LEVEL DOCKET NO:

50-368 UNIT:

TWO DATE:

MAY, 1984 COMPLETED 8Y: W.E. CONVERSE TELEPHONE:

901-964-3118 MONTH MAY, 1984 DAY AVERAGE DAILY POWER LEVEL

-(MWe-Net) 1;.............

903 2'.............

900 3.............

902

-4:.........

903 5.............

900

-6.............

879 7.............

-159.6' 8.............

884 4..............

901 10............

902 11............

900 12............

896 13............

894

..g 114............

896 15............

900 16............

899 17............

900

.18............

900 19.............

1897 120............

899 21............

898 22............

898.

23............

899 24.............

900 25............

895-

!26~............

901 27............

901 28............

901

.291............

906 30............

.906 31............

903 INSTRUC' TION

'On' this format, list the average daily unit power level in MWe-Net for each day.in reporting month.

Compute to the nearest whole megawatt.

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' NRC~ MONTHLY OPERATING REPORT l

i OPERATING-

SUMMARY

a-MAY 1984 l

UNIT 2-i The unit started the month at 100% full power.

On May 6th, a 500 KV111ne i

wasDlostfwhen a. substation was' hit by_a tornado.

At 2208 hours0.0256 days <br />0.613 hours <br />0.00365 weeks <br />8.40144e-4 months <br /> that day,

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'the-dispatcher requested a power reduction to 500 MW.

This power level was achieved.at 2338 hours0.0271 days <br />0.649 hours <br />0.00387 weeks <br />8.89609e-4 months <br />.

At 0052 hours6.018519e-4 days <br />0.0144 hours <br />8.597884e-5 weeks <br />1.9786e-5 months <br /> on May 7th,~a power escalation was.

j begun. -During the escalation, feedwater flow oscillations developed as a resultLof controller problems..The operators took manual control of

-feedwater at 0120 hours0.00139 days <br />0.0333 hours <br />1.984127e-4 weeks <br />4.566e-5 months <br />, but they were unable to stabilize levels. At 20125 hours,'.the unit-tripped from'66% power on high level in'the "B" steam generator.-

1

~The reactor was returned to critical at 0653 hours0.00756 days <br />0.181 hours <br />0.00108 weeks <br />2.484665e-4 months <br /> on May 7th and was tied j

to1the grid at: 1355-hours that day.

At 0427. hours on May 8th, the unit was

.back at 100% full power.where it remained for the rest of the month.

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1 UNIT SHUTDOWNS ANO POWER REDUCTIONS-REPORT.FOR MAY, 1984 DOCKET NO 50-368 UNIT NAME ANO-2 DATE 6/5/84 COMPLETED BY W.E. CONVERSE TELEPHONE 501-964-3188 Method of Licensee Cause & Corrective Duration Shutting' Event System Component Action.to No.

Date.

Tyge (Hours)

Reason.

Down Reactor 8 Report #

Code.

Code :

Prevent Recurrence l

2 4

s 84-03 840506 F

3.3 H

5 N/A ZZ ZZZZ Unit' load reduction at request of dispatcher.

Cause:

Loss of 500 KV transmission'line when a tornado struck a substation.

84-04 840507 F

7.5 A

3 84-011-00 JB LCO Unit tripped due to feedwater control system failure.

1 2

3 4

F:

Forced Reason:

Method:

Exhibit G - Instructions S:

Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data 8-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 0161)

E-Operator Training &

.5-Load Reduction 5

License Examination 9-Other F-Administrative Exhibit 1 - Same Source G-Operational Error (Explain)

G-Other (Explain) i e

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,ye DATE:

MAY, 1984 REFUELING INFORMATION i

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'1.

LName'of facility:

Arkansas Nuclear One - Unit 2 i

2.-

Scheduled date for-next refueling shutdown. May, 1985 l

13.

' Scheduled.date for restart following refueling.. July, 1985 4.'

Will refueling or; resumption of' operation thereafter require a

' technical' specification change or other. license amendment?' If answer Lis 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 questions'are associated with the core reload (Ref. 10 CFR Section

50.59)?

Yes,-some-proposed software changes to the' Core Protection Calculators are-being considered.

i; '

• 5.

Scheduled date(s) for submitting. proposed 1icensing action and

supporting ~information.

February, 1985-

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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.

BurnaSle poison rods will be used.in reload fuel.

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- 7.'

The number of fuel assemblies (a)_in the core and:(b) in the spent fuel storage pool'.

a) '177-

.b) 168

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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

~9.

-The projected date of the last refueling that can Le discharged to the

-spent fuel pool assuming the present licensed capacity.

-DATE: -2003 a

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3 ARKANSAS POWER & LIGHT COMPANY POST OFFICE BOX 551 LITTLE ROCK, ARKANSAS 72203 (501) 371-4000 June 15, 1984 2CAN068406 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 (File:

2-0520.1 Gentlemen:

Attached is the NRC Monthly Operating Report for May 1984 for Arkansas Nuclear One - Unit 2.

Very truly yours, PHLif ohn R. Marshall Manager, Licensing JRM:SAB:ac Attachment cc:

Mr. John T. Collins 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 4?'k-MEMSER MICOLE SOUTH UTILITIES SYSTEM