1CAN068406, Monthly Operating Rept for May 1984

Monthly Operating Rept for May 1984

ML20092M725
Person / Time
Site:	Arkansas Nuclear
Issue date:	05/31/1984
From:	John Marshall, Morton K ARKANSAS POWER & LIGHT CO.
To:	Bassett H NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
1CAN068406, 1CAN68406, NUDOCS 8407020372
Download: ML20092M725 (6)

Text

l

.f OPERATING DATA REPORT i

DOCKET NO:

50-313 I

DATE:

MAY, 1984 COMPLETED BY:K.C. MORTON TELEPHONE:

501-964-3115 OPERATING STATUS i

1.

Unit.Name:

Arkansas Nuclear One - Unit 1 2.

-Reporting Period:

May 1-31, 1984 3.

Licensed Thermal Power (MWt):

2568 4.

Nameplate Rating (Gross MWe):

902.74 5.

Design Electrical Rating (Net MWe): 850 6.

Maximum Dependable Capacity (Gross MWe):

833 7.

Maximum Dependable Capacity (Net MWe): 836 3.

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.. Hour:. in Peporting Period....

744.0 3,647.0 82,842.0 17 Number of hours Reactor was

. Critical.....................

744.0 3,016.4 55,451.9

13. ~ Reactor Reserve Shutdown Hours........................

0.0 0.0 5,044.0 14.

Hours Generator On-Line'......

744.0 2,998.6 54,248.8 15.

Unit Reserve Shutdown Hours..

0. 0 0.0 817.5 16.

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

1,804,318.0 7,291,232.0 129,211,533.0 17.

Gross Electrical. Energy Generated (MWH)..............

610,545.0 2,448,235.0 42,586,600.0 18.

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

583,420.0 2,343,461.0 40,601,849.0 19.

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

100.0 82.2 65.5 20.

Unit Availability Factor.....

100.0 82.2 66.5 21.

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

93.8 76.9 58.6

22. _ Unit Capacity Factor (Using DER Net)..............

92.3 75.6 57.7 23.

Unit Forced Outage Rate......

0.0 0.5 15.2 24.

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

None 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 8407020372 840531

')-,

PDR ADOCK 05000313 R

PDR i

w.=

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO:

50-313 UNIT:

ONE l-DATE:

MAY, 1984 COMPLETED BY: K.L. MORTON TELEPHONE:

501-964-31'S MONTH-MAY, 1984 DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 1.............

835 2.............

835

31.............

836 4~.............

827 5.............

-766 6.............

46 7:.............

-770 8.............

824

^

9.............

823-10...........

820' 11............

819 12............

-816 13............

814 14............

811 15............

809-

~

>16............

807 17'............

804 18............

793 19............

762 20............

760 21............

754 22............

-733-23............

726 24............

728 25............

708

.26............

706

'27........,...

-708 28............

792 29............

791 30............

791 31............

792 INSTRUCTION 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.

Ei

l'

~

c NRC MONTHLY OPERATING REPORT OPERATING

SUMMARY

MAY 1984

}

UNIT 1 The unit started the month at 300% full power. At 2035 hours0.0236 days <br />0.565 hours <br />0.00336 weeks <br />7.743175e-4 months <br /> on May 4th, the unit

• egan decreasing in power because of high steam generator operating o

level.

It reached 92% power at 2230 hours0.0258 days <br />0.619 hours <br />0.00369 weeks <br />8.48515e-4 months <br /> and remained there until 2203 hours0.0255 days <br />0.612 hours <br />0.00364 weeks <br />8.382415e-4 months <br /> on May 6th.

Subsequently, a 500 KV line was lost when a substation was hit by a tornado.

The dispatcher requested a power reduction to 500 MW at 2206 hours0.0255 days <br />0.613 hours <br />0.00365 weeks <br />8.39383e-4 months <br />.

At 2230 hours0.0258 days <br />0.619 hours <br />0.00369 weeks <br />8.48515e-4 months <br />, another request was made to hold at 550 MW.

At 2246 hours0.026 days <br />0.624 hours <br />0.00371 weeks <br />8.54603e-4 months <br />, power was dropped to 450 MW; however,-the unit was stabilized at 465 MW because of normal feedwater flow operating requirements.

The unit remained there until 0100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> on May 7th when a power increase was begun.

The unit attained 90% power at 0400 hours0.00463 days <br />0.111 hours <br />6.613757e-4 weeks <br />1.522e-4 months <br /> and held for xenon equilibrium until 0615 hours0.00712 days <br />0.171 hours <br />0.00102 weeks <br />2.340075e-4 months <br />.

The unit began increasing in power again and attained 100% power at 0800 hours0.00926 days <br />0.222 hours <br />0.00132 weeks <br />3.044e-4 months <br />.

During the period from May lith to May 16th, the unit gradually decreased in power eventually-reaching 96%.

At 1834 hours0.0212 days <br />0.509 hours <br />0.00303 weeks <br />6.97837e-4 months <br />, a power reduction was begun;

' this reduction originated from high steam generator operating level.

The unit reached 92% power at 1So8 hours and remained there until 1155 hours0.0134 days <br />0.321 hours <br />0.00191 weeks <br />4.394775e-4 months <br /> on May 21st.

At 1254 hours0.0145 days <br />0.348 hours <br />0.00207 weeks <br />4.77147e-4 months <br />,-unit power was reduced once again to 90%.

On May 22nd at 0910 hours0.0105 days <br />0.253 hours <br />0.0015 weeks <br />3.46255e-4 months <br />, unit power was once again dropped to 87.5% in an effort to reduce the effect of the high operating level in the steam

-generators.

The unit remained there until 0110 hours0.00127 days <br />0.0306 hours <br />1.818783e-4 weeks <br />4.1855e-5 months <br /> on May 28th.

At

_ 0255 hours0.00295 days <br />0.0708 hours <br />4.21627e-4 weeks <br />9.70275e-5 months <br />, the unit was brought back up to 96% power.

The unit remained there thrcugh the end of the month.

2 t

+

k

---m

-. r

UNIT SHUTDOWNS AND POWER REDUCTIONS-

- REPORT FOR MAY, 1984-DOCKET NO 50-313 UNIT NAME ANO-UNIT 1 DATE JUNE 4, 1984 COMPLETED BY KEN MORTON

-TELEPHONE 501-964-3115 Method of Licensee Cause & Corrective Duration Shutting Event System Component Action to No.

Date Type (Hours)

. Reason 2 Down Reactor 8 2

Report #

Code 4 Code 5 Prevent Recurrence 84-03 840506 F

10.0 H

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

Cause:

Loss of 500 KV transmission line when a tornado hit a substation.

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 ar Test 2-Manual Scram.

Entry Sheets for Licensee C-Refueling 3-Automatic Scram.

Event Report (LER) File (NUREG-l D-Regulatory Restriction 4-Continuation 0161)

E-Operator Training &

5-Load Reduction License Examination 9-Other 5

F-Administrative Exhibit 1 - Same Source G-Operational Error (Explain)

G-Other (Explain) 5 b

=

s r

n

J. ~,* -

DATE:

MAY, 1984 REFUELING INFORMATION y:

s 1.

Name_of facility: Arkansas Nuclear One - Unit 1 2.

Scheduled date for next_ refueling shutdown.

November 1, 1984 3.

Scheduled date for restart following refueling.' January 10, 1985 4.

Will refueling or resumption of operation thereafter require a technical specificatian change or other license amendment? If answer

' is yes, what, in ' general,.will there be? If answer is no, has the reload fuelEdesign 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, Reload Report and associated proposed Tect.nical Specification change.

5.

Scheduled date(s) for_ submitting proposed licensing action and supporting -information. : September 1,1984 -

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.

Yes, the-reload analysis will be done using newly developed thermal hydraulic codes.

Babcock & Wilcox will be submitting Topical Reports on the new codes for-NRC review prior to September 1, 1984.

7.

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

-storage pool, a) 177 b) 316 8.

The present licene ' spent fuel pool storage capacity and the _ size of any increase.in lit ' sed storage ~ capacity that has been requested or is' planned,_in number uf-fuel assemblies.

present-988 increase size by 0

~ 9.

The projected date of the last refueling that can be discharged to the

_ spent fuel _ pool assuming the present licensed capacity.

DATE:

1998-s b

n_

O ARKANSAS POWER & LIGHT COMPANY POST OFFICE BOX 551 UTTLE ROCK, ARKANSAS 72203 (501)371-4000 June 15, 1984 1CAN068406 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 1 Docket No. 50-313 License No. DPR-51 Monthly Operating Report (File:

0520.1 Gentlemen:

Attached is the NRC Monthly Operating Report for May 1984 for Arkansas Nuclear One - Unit 1.

V ry truly yours, 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 d

V 6

1 MEMBER MIDOLE SOUTH UTILITIES SYSTEM I

L