ML20086K018

Monthly Operating Rept for June 1995 for Waterford 3

ML20086K018
Person / Time
Site:	Waterford
Issue date:	06/30/1995
From:	Burski R, Freeman D ENTERGY OPERATIONS, INC.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
W3F1-95-0105, W3F1-95-105, NUDOCS 9507190331
Download: ML20086K018 (7)

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% yttd 3 W3F1-95-0105 A4.05 PR July 14,1995 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk l Washington, D.C. 20555

Subject:

Waterford 3 SES Docket No. 50-382 License No. NPF-38 Monthly Operating Report l Gentlemen:

Attached is the subject monthly report which covers the operating statistics for the month of June,1995. This report is submitted per Section 6.9.1.6 of the Waterford 3 Technical Specifications for Facility Operating License No. NPF-38.

1 Very truly yours, l

, ,p44 R.F. Burski Director Nuclear Safety l

RFB/DFL/ssf Attachment cc: L.J. Callan (NRC Region IV)

C.P. Patel, NRC-NRR R.B. McGehee N.S. Reynolds F. Yost (Utility Data Institute, Inc.)

J.T. Wheelock (INP0 Records Center)

NRC Resident Inspectors Office 2 0 0 d I 1 Pb AD KO 2 ((2

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NRC MONTHLY OPERATING REPORT

SUMMARY

OF OPERATIONS WATERFORD 3 for June, 1995 The unit' operated at an average reactor power level of 34.4% having experienced one reactor trip during the period.

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PRESSURIZER SAFETY VALVE FAILURES AND CHALLENGES WATERFORD 3 for June, 1995 '

There were no pressurizer safety valve failures or challenges experienced during the month.

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OPERATING DATA REPORT DOCKET NUMBER : 50-382 UNIT NAME : WATERFORD 3 DATE OF REPORT : July 7,1995 COMPLETED BY : D. S. Freeman TELEPHONE : (504) 464-3352 OPERATING STATUS

1. Reporting Period  : June, 1995 Gross Hours in Reporting Period  : 720 l

l 2. Currently Authorized Power Level (MWt) : 3.390 Maximum Dependable Capacity (Net MWe) : 1.075 Design Electrical Rating (Net MWe) : 1.104

3. Power Level to which Restricted (if any) (Net MWe) : N/A

4. Reason for Restriction (if any)  : N/A THIS YEAR TO MONTH DATE CUMULATIVE

5. Number of Hours Reactor was Critical 276.9 3.899.9 72.622.7

6. Reactor Reserve Shutdown Hours 0.0 0.0 0.0

7. Hours Generator was On-line 257.0 3.880.0 71.724.3

8. Unit Reserve Shutdown Hours 0.0 0.0 0.0

9. Gross Thermal Energy Generated (MWH) 839.448 13.102.645 237.432.254

10. Gross Electrical Energy Generated (MWH) 278.650 4.376.950 79.111.410

11. Net Electrical energy Generated (MWH) 257.090 4.188.296 75.430.662

12. Reactor Service Factor 38.5 89.8 84.8

13. Reactor Availability Factor 38.5 89.8 84.8

14. Unit Service Factor 35.7 89.3 83.8

15. Unit Availability Factor 35.7 89.3 83.8

16. Unit Capacity Factor (using MDC) 33.2 89.7 81.9

17. Unit Capacity Factor (Using DER) 32.3 87.4 79.8

18. Unit Forced Outage Rate 64.3 10.7 3.6 I

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a OPERATING DATA REPORT DOCKET NUMBER : 50-382 UNIT NAME : WATERFORD 3 DATE OF REPORT : July 7, 1995 i COMPLETED BY : D. S. Freeman TELEPHONE : (504) 464-3352 OPERATING STATUS (Cont.)

19. Shutdowns Scheduled over next 6 months (type, date and duration of each) : I REFUEL -

September 22, 1995 -

60 Days i l

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20. If Shutdown at end of report period, estimated date of startup: N/A

21. Unit is in Commercial Operation.

THIS YEAR TO MONTH DATE CUMULATIVE

22. Hours in Reporting Period 720 4.343 85.608

23. Unit Forced Outage Hours 463.0 463.0 2.673.2

24. Nameplate Rating (Gross MWe) : 1,200 Max. Dependable Capacity (Gross MWe) : 1.120

25. If changes occur in capacity ratings (Items 2 and 24) since the last report, give the reasons :

N/A 1,,,,

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NUMBER-: 50-382 UNIT NAME : WATERFORD 3 DATE OF REPORT : July 7, 1995 COMPLETED BY : D. S. Freeman TELEPHONE : (504) 464-3352 l

Reporting Period : June, 1995 ( NET MWe )

l DAY Avg. Power Level DAY Avg. Power Level 1 1,088 16 (19) 2 1,092 17 (24) 3 1,086 18 (30) 4 1,087 19 (15) 5 1,088 20 (15) 6 1,085 21 (15) <

7 1,084 22 (16) 8 1,084 23 (16) 9 1,082 24 (15) 10 395 25 (16) 11 (16) 26 (19) 12 (16) 27 (33) 13 (17) 28 (43) 14 (14) 29 21 15 (13) 30 917 31 1,089 INSTRUCTIONS :

On this form, list the average daily unit power level in MWe-Net for each day in the reporting month. Compute to the nearest whole megawatt.

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.. UNIT SHUTDOWNS AND POWER REDUCTIONS l l

DOCKET NUMBER : 50-382 UNIT NAME : WATERFORD 3 DATE OF REPORT : July 7,1995 COMPLETED BY : D. S. Freeman TELEPHONE : (504) 464-3352 REPORTING PERIOD : June, 1995 i

Date

• Duration ** Shutdown Cause, Comments and Number (yymmdd) Type (Hours) Peason Method Corrective Actions i 95-01 950610 F 463.00 A 3 A Grid Fault caused a False Sudden Pressure Relay indication due to an electro-mechanical shock.

This initiated a Turbine Trip, Reactor Power Cutback, and a transfer of House Loads from the Unit Aux Transformer (UAT) to the Start Up Transformer (SVT). However the UAT breakers were slow to open and the SVT breakers closed, reconnecting the Generator to grid. The generator ,

output (while dropping) went out of phase. The Reactor Coolant Pumps experienced a voltage drop, slowing down, and the Reactor Protection System triped the plant on low Departure From Nucleate Boiling Ratio.

The VAT breaker, whose interruptable rating had been exceeded, failed internally as it attempted to trip, creating ionizing gases which promoted electrical arcing, starting a fire in the Switchgear room.

Refer to LER-95-002 for more details and corrective actions.

IXEE REASON F - Forced A - Equipment Failure (explain)

S - Scheduled B - Maintenance or Test C - Refueling D - Regulatory Restriction

• • • E - Operator Training and METHOD License Examination 1 - Manual F - Administoative 2 - Manual Scram G - Operational Error (explain) 3 - Automatic Scram H - Other (explain) 4 - Continuation from Previous Period 5 - Power Reduction 6 - 0ther (explain) nu e.,. : . a .

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