ML20237K558

Monthly Operating Rept for Feb 1987

ML20237K558
Person / Time
Site:	Maine Yankee
Issue date:	02/28/1987
From:	Taylor J, Whittier G Maine Yankee
To:	Hartfield R NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
GDW-87-54, MN-87-30, NUDOCS 8708190311
Download: ML20237K558 (5)

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A OPERATING DATA REPORT Docket No.: 50-309 Date: 02/ Mar /87 Completed By': J.M. TAYLOR Telephone: 207-882-6321

1. Unit Namn....................................... Maine Yan!me____

2. Reporting Period................................ February 1987 _

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

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

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

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

7. Maximum Dependable Capacity (Net MWe)........... 010

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

Since Last Report, Give Reasons:

NO CHANGES

9. Power Level to Which Restricted, if Any (Net MWe) NO RESTRICTIONS

10. Reasons for Restrictions, if Any:

THIS MONTH YEAR-TO-DATE CUMULATIVE

11. Hours In Reporting Period 672.00 1.416.00

12. Number of Hours Reactor Was Critical........... 672.00 1.416.00 101.544.89

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

14. Hours Generator On-line.. 672.00 1.416.00 98.755.69

15. Unit Reserve Shutdown Hours.................. O.00 0.00 0.00

16. Gross Thermal Energy Generated (MWH)........ 1.585,633.00_ 3.518.642.00 224.775.954.00

17. Gross Electrical Energy Generated (MWH)........ 517.110.00 1.163.400.00 73.864.410.00

18. Net Electrical Energy Generated (MWH)........ 498.822.00 1.125.051.00 70.553.122.00

19. Unit Service Factor...... 100.00 100.00 __

78.75

20. Unit Availability Factor.. 100.00 100.00 79.50

21. Unit Capacity Factor (Using MDC Net)........ 91.64 98.09 71.16

22. Unit Capacity Factor (Using DER Net)........ 89.98 96.31 69.32

23. Unit Forced Outage Rate.. 0.00 0.00 6.41

24. Shutdowns Scheduled Over Next 6 Months:

Date Type Duration 3/28/07 REFUELING OUTAGE 3/28/87-5/15/87

25. If Shutdown at End of Report Period, Estimated Date of Startup: N/A 09 PDR

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Docket No: 50-309 Unit Name: Maine Yankee Date: 03/04/87 Copmpleted Dy: J.M. Taylor Telephone: 207-882-6321 Report Month: Febuary, 1987 NARRATIVE SUMMf4RY OF OPERATING EXPERIENCES At the beginning of the mor.th the plant was at 95% power with refueling coastdown in progress.

On Febuary 7th, power was reduced from 92% to 88% for turbine valve testing, excess flow check valve testing, and extraction nonreturn valve testing.

Refueling coastdown continued throughout the remainder of the month.

At the end of the month power was at 84%.

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AVERAGE' DAILY UNIT POWER LEVEL- l FOR. FEBRUARY 1987 Docket No.: 50-309 i l

Unit: Maine Yankee r

l Date: 02/ Mar /87 Completed By: J.M. TAYLOR Telephone: 207-882-6321 Day Avg. Daily Power Level Day Avg. Daily Power Level .

(MWe-Net) (MWe-Net) 1 .................... 801 16 .................... 734 2 .................... 798 17 .................... 738 l

3 . . . . . . . . . . . . . . . . . . .'. 793 18 .................... 724-4 .................... 788 19 .................... 723 l 5 .................... 781 20 .................... 718 i

6 .................... 779 21 .................... 719 7 .................... 763 22 .................... 708 8 ....................

770 23 .................... 705 i 9'

.................... 769 24 .................... 700  !

10 .................... 763- 25 .................... 698

'11 .................... 760 .26 .................... 694 l 12 .................... 752 27 .................... 687

-13 .................... 749 28 .................... 684 14 .................... 745 15 .................... 741 I

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UNIT SHUTDOWNS AND POWER REDUCTIONS Dockct No.: 50-309 FOR FEBRUARY 1987 Unit: Haine Yankas Date: 03/ Mar /87 Completed By: J.M. TAYLOR Telephone: 207-882-6321 Page: 1 of 1 i

Number Date Type (1)

Duration (Hours) ,

R ason (2)

Method (3)

^

LER #

System Code (4)

Component Code (5)

THERE WERE NO ,

SHUTDOWNS OR REPORTABLE Cause and REDUCTIONS THIS Corrective MONTH. .

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. 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 7

W MAIRE HARHEE AToml0POWERCOMPARUe ,vaugr,K,,?n"g o",l,E 6 l h (207) 623-3521 l

9 March 10, 1987 MN-67-30 GDH-87-54 Office of Resource Management i United Status Nuclear Regulatory Commission Washington, D.C. 20555 Attention: Mr. Richard A. Hartfield, Chief Management Information Branch i

References:

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

(b) NUREG-0020, Licensed Operating Reactors Status Summary  !

Report

Subject:

Maine Yankee Monthly Statistical Report Gentlemen:

4 Enclosed you will find the Monthly Statistical Report for the Maine Yankee Atomic Power Station for February, 1987.

Very truly yours, MAINE YANKEE ATOMIC POWER COMPANY Id OV' G. D. Whittier, Manager Nuclear Engineering and Licensing GDH/hbg Enclosure cc: Mr. Ashok Thadani Dr. Thomas E. Murley Mr. Pat Sears Mr. Cornelius F. Holden i

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