W3P86-1903, Monthly Operating Rept for May 1986.W/860613 1tr

Monthly Operating Rept for May 1986.W/860613 1tr

ML20206B371
Person / Time
Site:	Waterford
Issue date:	05/31/1986
From:	Cook K, Geoffrey Miller LOUISIANA POWER & LIGHT CO.
To:	Scroggins R NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
W3P86-1903, NUDOCS 8606190081
Download: ML20206B371 (7)

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NRC MONTHLY OPERATING REPORT

SUMMARY

OF OPERATIONS WATERFORD 3 MAY 1986 The unit started the month at approximately 100% power. On May 9 at 2034, at 100% power, a reactor trip occurred on low departure from nucleate boiling ratio (DNBR) due to a failure of a reed switch assembly for control element assembly #35. On May 11 at 1146, the generator was back on line. On May 26, a power reduction was initiated to replace an annunciator relay interface board in the drive mechanism for control element assembly #45. On May 27, the unit returned to 100% power and ended the month at that power.

8606190081 860031 PDR ADOCK 05000382 R

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PRESSURIZER SAFETY VALVE FAILURES AND CHALLENGES WATERFORD 3 a

i During the month of May 1986, there were no pressurizer safety valve failures i

or challenges.

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OPERATING DATA REPORT A

UNIT NAME: WATERFORD 3 CITY / STATE: KILLONA/LA DATE: JUNE 1986 OPERATING STATUS

1. Docket: 50-382 Notes (1) Maximum Dependable

2. Reporting Period: MAY 1986 Capacity (Gross and Net MWe) is based on

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3. Utility

Contact:

GEORGE MILLER

,pab i test n 5/22/86.

Phone Number:

(504) 467-8211

4. Licensed Thermal Power (MWt): 3390

5. Nameplate Rating (Gross Mwe): 1153

6. Design Electrical Rating (Net MWe): 1104

7. Maximum Dependable Capacity (Gross MWe): 1142

8. Maximum Dependable Capacity (Net MWe): 1097

9. If Changes Occur in Capacity Ratings (Items Number 4 Through 8) Since Last Report, Give Reasons:

N/A 10.

Power Level To Which Restricted, if Any (Net MWe):

NONE 11.

Reasons For Restrictions, If Any: N/A This Month Yr.-to-Date Cumulative 12.

Hours In Reporting Period 744.0 3623.0 6000.0

13. Number of Hours Reactor Was Critical 710.4 3014.2 4882.9

14. Reactor Reserve Shutdown Hours 15 Hours Generator On-Line 704.8 2972.2 4779.0

16. Unit Reserve Shutdown Hours OPERATING DATA REPORT (Continued)

This Month Yr.-to-Date Cumulative 17.

Gross Thermal Energy Generated (MWH) 2,337,147 9,818,117 15,460,556 18.

Gross Electrical Energy Generated (MWH) 794,550 3,320,770 5,218,620 19.

Net Electrical Energy Generated (MWH) 760,965 3,166,469 4,971,622 20.

Unit Service Factor 94.7 82.2 79.7 l

21.

Unit Availability Factor 94.7 82.2 79.7 i

22.

Unit Capacity Factor (Using MDC Net) 93.2 79.7 75.5 23.

Unit Capacity Factor (Using DER Net) 92.6 79.2 75.1

24. Unit Forced Outage Rate 5.3 2.9 12.0 25.

Unit Forced Outage IIours 39.2 89.3 654.1 l

26.

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

l Refueling / Maintenance Outage, December 1986 - January 1987.

27.

If Shut Down At End of Report Period, Estimated Date Of Startup:

28.

Units In Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CRITICALITY 3/4/85

, INITIAL ELECTRICITY 3/18/85 COMMERCIAL OPERATION 9/24/85 A

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-382 UNIT WATERFORD 3 DATE JUNE 1986 COMPLETED BY GEORGE MILLER TELEPHONE 504-467-8211 MONTH MAY 1986 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(NWe-Net) 1 1108 17 1105 2

1109 18 1106 3

1110 19 1103 4

1110 20 1105 5

1109 21 1105 6

1108 22 1108 7

1108 23 1106 8

1110 24 1108 9

946 25 1106 10

-40 26 974 11 225 27 934 12 1019 28 1102 13 1101 29 1104 14 1105 30 1106 15 1100 31 1107 16 1101 INSTRUCTIONS On this format, list the average daily unit power level in NWe-Net for each day in the reporting month. Compute to the nearest whole megawatt.

I (9/77)

9 UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT FOR MAY 1986 DOCKET NO 50-382 UNIT NAME WATERFORD 3 DATE JUNE 1986 COMPLETED BY GEORGE MILLER TELEPHONE 504-467-8211 Method of Licensee Cause & Corrective l

Duration Shutting Event System Component Action to l

No.

Date Type G*dURS)

REASON 2 Down Reactor 8 t

Report #

Coded Code 5 Prevent Recurrence j

86-06 860509 F

39.2 A

3 86-009 JC ZIS At 100% power, a reactor trip occurred on low DNBR due to a failure of a reed switch assembly for control ' element assembly #35.

86-07 860526 F

0.0 H

5 NA AA ANN Unit power reduction to replace an annunciator relay interface board in the drive mechanism for control element assembly #45.

1 2

3 F: Forced Reason:

Method S: Scheduled A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Scram.

C-Refueling 3-Automatic Scram.

D-Regulatory Restriction 4-Continuation 4

E-Operator Training &

5-Load Reduction IEEE Std.'805-1984 i

License Examination 9-Other 5

F-Administrative IEEE Std. 803A-1983 G-Operational Error (Explain)

H-Other (Explain)

e LOUISI AN A / 317 BARONNESTREET P. O. BOX 60340 POWER & LIGHT NEW ORLEANS, LOUISlANA 70160 (504) 595-3100 EuS$bsY$

June 13, 1986 W3P86-1903 A4.05 QA Mr. Ronald M. Scroggins Controller and Director Office of Resource Management U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Subject:

Waterford 3 SES Docket No. 50-382 License No. NPF-38 MONTHLY OPERATING REPORT

Dear Mr. Scroggins:

Enclosed is the subject monthly report which covers the operating statistics for the month of May 1986. This report is submitted per Section 6.9.1.6 of the Waterford 3 Technical Specifications for Facility Operating License No. NPF-38.

Very truly yours, K.W. Cook Nuclear Support & Licensing Manager KWC:GEW:ssf Enclosure cc:

R.D. Martin, NRC Region IV NRC, Director, Office of I&E G.W. Knighton, NRC-NRR NRC Resident Inspectors Office INPO Records Center (J.T. Wheelock) 9k B.W. Churchill e

l W.M. Stevenson g

"AN EQUAL OPPORTUNITY EMPLOYER"