ML20151B010

Monthly Operating Rept for June 1988 for Maine Yankee

ML20151B010
Person / Time
Site:	Maine Yankee
Issue date:	06/30/1988
From:	Rivard D, Whittier G Maine Yankee
To:	NRC, NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
GDW-88-176, MN-88-70, NUDOCS 8807200199
Download: ML20151B010 (6)

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Maine 9ankee M co n t h 1 y Statistical R e p o r- t f= ca r- June 1988 h!R a

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. OPERATING DATA REPORT DockGt No.: 50-309 l Dato: 01/Jul/88 l Completed By: D.A. Rivard )

Telephone: 207-882-6321

1. Unit Name....................................... Maine Yankee ,

2. Reporting Period................................ June 1988

3. Licensed Thermal Pnwer (MWt).................... 2630

4. Nameplate Rating (Gross MWe).................... 864

5. Design Electrical Rating (Net MWe).............. 825

.6. Maximum Dependable Capacity (Gross MWe)......... 850

7. Maximum Dependable Capacity (Net MWe)........... 810

8. If Changes in Capacity Ratings (Itema Number 3-7)

Since Last Report, Give Reasons:

NO CHANGES 4

9. Power Level to Which Restricted, if Any (Net MWe)

10. Reasons for Restrictions, if Any:

THIS MONTH YEAR-TO-DATE CLMULATIVE

11. Hours In Reporting Period 720.00 4.367.00

12. Number of Hours Reactor

~.;L;-_;........... " ^ ^. ^ " '"^ "' 110 '^^ '"

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13. Reactor Reserve Shutdown Hours.................. 0.00 0.00 0.00

14. Hours Generator On-line.. 720.00 4.337.78 107.092.86

15. Unit Reserve Shutdown Hours.................. 0.00 0.00 0.00

16. Gross Thermal Energy Generated (MWH)........ 1.870.699.00 11.329.439.00 245.689.770.00

17. Gross Electrical Energy Generated (MWH)........ 580.970.00 3.550.960.00 80.439.690.00

18. Net Electrical Energy Generated (MWH)........ 561.837.00, 3.434.507.00 76.905.479.00

19. Unit Service Factor...... 100.00 99.33 78.15

20. Unit Availabilty Factor.. 100.00 99.33 78.15

21. Unit Capacity Factor (Using MDC Net)........ 96.34 97.09 70.80

22. Unit Capacity Factor (Using DER Net)........ 94.59 95.33 69.02

23. Unit Forced Outage Rate.. 0.00 0.67 7.06

24. Shutdowns Scheduled Over Next 6 Months:

Date Type Duration 10/15/98 REFUELING OUTAGE 8 WEEKS

25. If Shutdown at End of Repor t Period, Estimated Date of Startup: N/A

a Docket No: 50-309 Unit Name: Maine Yankso Date: 07/01/88 Completed By: D . A .' Rivard Telephone: 207-882-6321 1

Report Month: June, 1908 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCEC At the beginning of the month, the unit was operating at 75% power to support turbine valvo and excess flow check valve testing, and mussel control.

On 1 June, power was raised to 100%.

On 24 June, power was reduced to 75% to perform turbine valve and excess flow check valve testing, to perform mussel control, and to clean "B" condenser water box.

On 25 June, power was restored to 100%.

The unit operated at 100% power for the remainder cf the month.

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AVERApE DAILY UNIT POWER LEVEL -

FOR JUNE 1988 Docket No.: 50-309 Unit Maine Yankee Date: 01/Jul/88 Completed By: D.A. Rivard Telephone: 207-882-6321 Day Avg. Daily Power Level Day Avg. Daily Power Level (MWe-Net) (MWe-Net) 1 .................... 703 16 .................... 786 2 .................... 795 17 .................... 788 3 .................... 795 18 .................... 789 4 .................... 796 19 .................... 787 5 .................... 796 20 . . . . . . . . . . . . . . . . . . . . 786 6 .................... 796 21 . . . . . . . . . . . . . . . . . . . . 785 7 .................... 790 22 .................... 783 8 .................... 798 23 .................... 784 9 .................... 795 24 .................... 757 10 .................... 796 25 .................... 588 ,

11 .................... 795 26 .................... 790 12 .................... 792 27 .................... 790 13 .................... 793 28 .................... 791 14 .................... 790 29 .................... 790 1 1

15 .................... 792 30 .................... 791 i I

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UNIT SHUTDOWNS AND POWER REDUCTIONO Docket No.: 50-309 FOR JUNE 1988 Unit: Mnins Ycnkoo Date: 06/Jul/88 Completed By: D.A. Rivard Telephone: 207-882-6321 Page: 1 of 1 Number L. R. to 75% L. R. to 75%

Drte 880601 880624 Type (1) S S Duration (Hours) O O R ason (2) B B Msthod (3) 4 4 LER # N/A N/A System Code (4) HA HA Component Code (5) VALVEX-C VALVEX-C Reduced power for Reduced power for turbine valve and turbine valve and excess flow check excess flow check valve testing, valve testing, Cruse and condenser water mussel control and Corrective box cleaning and condenser water Action mussel control. box cleaning.

1. TYPE: 2. REASON: (cont) 4. SYSTEM CODE:

(F)orced F-Administrative Exhibit G-Instructions (S)cheduled G-Operational Error vor Preparation of Data H-Other (Explain) Entry Sheets for

2. REASON Licensee Event Report A-Eq'11pment Failure 3. METHOD: (LER) File (NUREG.0161)

B-Maintenance or Test 1-Manual C-Refueling 2-Manual Scram 5. COMPONENT CODE:

D-Regulatory Restriction 3-Automatic Scram Exhibit I-Same source E-Operator Training & 4-Other (Explain) as above.

License Examination l

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MaineVankee 1

,,,. . REttABLE ELECTRICITY FOR MAINE SINCE 1972 EDISON DRIVE . AUGUSTA, MAINE 04330. (207) 622 4868 July 8, 1988 HN-88-70 GDH-88-176 Office of Resource Management United States Nuclear Regulatory Commission Washington, D. C. 20555 Attention: Document Control Desk

References:

(a) License No. DPR-36 (Docket No. 50-309)

(b) NUREG-0020, Licensed Operating Reactors Status Summary Report Sub$cct: Haine Yankee Monthly Statistical Renort Gentlemen:

Enclosed you will find the Monthly Statistical Report for the liaine Yankee Atomic Power Station for June, 1988.

Very truly yours, HAINE YANKEE

})SAY G. D. Whittier, Manager Nuclear Engineering and Licensing GDH/bjp Enclosure cc: Mr. Richard H. Hessman Mr. Hilliam T. Russell Mr. Patrick H. Sears Mr. Cornelius F. Holden h

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