ML20141B995

Monthly Operating Rept for May 1997 for Maine Yankee.W/

ML20141B995
Person / Time
Site:	Maine Yankee
Issue date:	05/31/1997
From:	Stewart Bailey, Hebert J Maine Yankee
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
JRH-97-160, MN-97-76, NUDOCS 9706240257
Download: ML20141B995 (5)

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MaineYankee RELIABLE ELECTRICITY SINCE 1972 329 BATH ROAD + BRUNSWICK. MAINE 04011 + (207) 798-4100 June 16,1997 MN-97-76 JRH-97-160 l

1 UNITED STATES NUCLEAR REGULATORY COMMISSION Attention: Document Control Desk Washington, DC 20555

References:

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

(b) NUREG-0020, Licensed Operating Reactor Status Summary Report

Subject:

Maine Yankee Monthly Statistical Report - May 1997 Gentlemen: .

Enclosed please find the May 1997 Monthly Statistical Report for Maine Yankee.

I If you have any questions, please do not hesitate to contact me. '

Very truly yours, GWW James R. Hebert, Manager j

Licensing & Engineering Support Department 1

SJB

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Enclosures

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Mr. Hubert Miller Mr. J. T. Yerokun j l Mr. Daniel H. Dorman Mr. Patrick J. Dostie Mr. Uldis Vanags i I 9706240257 970531

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OPERATING DATA REPORT Docket No.: 50-309 Date: 10/Jun/97 Completed By: S. J. BAILEY Telephones 207-798-4241

! 1. Unit Name....................................... _Haine Yankee

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2. Reporting Period................................. May 1997 l

3. Licensed Thermal Power (NWt).................... 2700 l

4. Nameplate Rating (Gross MWe).................... 920

5. Design Electrical Rating (Net NWe).............. 870

6. Maximum Dependable Capacity (Gross MWe)......... 900

7. Maximus. Dependable Capacity (Net'MWe)........... 860

8. If. Changes in capacity Ratings (Items Number 3-7)

) Since Last Report, Give.Reasous l 50 CHANGNS i l

9. Power Level to Which Restricted, if Any (Net MWe) 795

10. Reasons for Restrictions, if Any:

By MRC Confirmatory Order dated Jan. 3, 1996. Maine Yankee is

restricted to 2440 MWt. A new computer code for Small Break LOCA is beino evaluated at Maine Yankee to allow operation to 2700MWt THIS MONTH YEAR-TO-DATE CUMULATIVE R 1

11. Hours In Reporting Period 744.00 3.623.00

12. Number of Hours Reactor I Was Critical........... 0.00 0.00 163,902.19

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

14. Hours Generator On-line.. 0.00 0.00 159,020.30

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

16. Gross Thermal Energy Generated (MWH)........ 0.00 0.00 377,611,152.00 l

17. Gross Electrical Energy Oenerated (MWH)........ 0.00 0.00 124.570,384.00

18. Net Electrical Energy Generated (MWH)........ 0.00 0.00 119,543,416.00

19. Unit Service Factor ..... 0.00 0.00 73.85

20. Unit Availabilty Factor.. 0.00 0.00 73.85

21. . Unit Capacity Factor (Using MDC Net)........ 0.00 0.00 68.52

22. Unit Capacity Factor (Using DER Net)........ 0.00 0.00 67.09

23. Unit Forced Outage Rate.. 0.00 100.00 8.99

24. Shutdowns Scheduled Over Next 6 Honths: NONE

25. If Shutdown at End of Report Period, Estimated Date of Startup: 12/31/97 l

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AVERAGE DAILY UNIT POWER LEVEL COR HAY 1997 Docket No.: 50-309 Unit Maine Yankee Date: 10/Jun/97 Completed By: S. J. BAILEY j Telephone: 207-798-4241 DGy Avg. Daily Power Level Day Avg. Daily Power Leve:

(HWe-Net) (HWe-Net) 1 .................... 0 16 .................... 0 2 .................... 0 17 .................... O i 3 .................... 0 18 .................... O 4 .................... 0 19 .................... 0 5 .................... O 20 .................... 0 6 .................... 0 21 . . . . . . . . . . . . . . . . . . . . O i 7 ... ................ 0 22 .................... 0 8 .................... 0 23 .................... 0 9 .................... 0 24 .................... 0 10 .................... 0 25 .................... 0 11 .................... 0 26 .................... 0 12 .................... 0 27 .................... 0 13 .................... 0 28 .................... 0 ,

14 .................... 0 29 .................... 0 15 .................... 0 30 .................... 0 31 .................... O l

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1 Docket No: 50-309 Unit Name: Maine Yankee Date 6-10-97 Completed By: S.J. Bailey Telephone: 207-798-4241 Report Month: May, 1997 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCES Plant remained off-line the month of May due to a refueling outage.

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UNIT SHUTDOWNS AND POWER REDUCTIONS Docket No.: 50-309 FOR HAY 1997 Unit Maine Yankee Date: 13/Jun/97 Completed By: S. J. BAILEY Telephone: 207-798-4241 Page: 1 of 1 l

. Number 07-97-15 Date p 970212 H p Type (1) H S H H Duration (Hours) 744 Reason (2) [ C 1

Hethod (3) [ 1 p h

i LER # H N/A l l System Code (4) ZZ

, Component Code (5) ZZZZZZZZ Off-line entire month due to refueling outage that began on Cause and 2/12/97.

3 Corrective Action

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

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

2. REASON Licensee Event Report A-Equipment Failure 3. HETHOD: (LER) File (NUREG.0161)

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

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

License 3xamination

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