ML20212L965

Monthly Operating Rept for Oct 1986

ML20212L965
Person / Time
Site:	Maine Yankee
Issue date:	10/31/1986
From:	Lizotte W, Whittier G Maine Yankee
To:	Hartfield R NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
GDW-86-266, MN-86-140, NUDOCS 8701290452
Download: ML20212L965 (5)

Text

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OPERATING DATA REPORT Docket No.: 50-309 Date: 05/Nov/86 Completed By: WILLIAM LIZOTTE Telephone: 207-882-6321

1. Unit Name....................................... Maine Yankee 2.-Raporting Period................................- October 1986

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

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

864

5. Dzzign Electrical Rating (Net MWe)..............

825 850

6. Mnximum Dependable Capacity (Gross MWe).........

MWe)........... 810

7. Mrximum Depondable Capacity (Net

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

Since Last Report, Give Reasons:

NO CHANGES 4

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

~ 10. Raasons f or Restrictions, if Any:

1 THIS NONTH YEAR-TO-DATE CUMULATIVE

11. Hours In Reporting Period 745.00 7.296.00

!!2. Number of Hours Reactor 6.336.55 98.674.27 Was Critical........... 729.67

13. Raactor Reserve Shutdown 0.00 0.00 Hours.................. 0.00 724.73 6.242.69 95.887.35 114. Hours Generator On-line..

j i 5.' Unit Reserve Shutdown 0.00 0.00 Hours.................. O.00

16. Gross Thermal Energy Generated (MWH)........ 1.873.156.00 15.558.122.00 217.558.803.00

17. Gross Electrical Energy 627.220.00 5.220.840.00 71.460.560.00

Generated (MWH)........

18. Net Electrical Energy Generated (MWH)........ 608.042.00 5.044.711.00 68.231.026.00 97.28 85.56 78.26

.19. Unit Service Factor......

85.56 79.02

20. Unit Availabilty Factor.. 97.28

21. Unit Capacity Factor 100.76 85.36 _ 70.50 (Using MDC Net)........

22. Unit Capacity Factor 68.65 (Using DER Net)........ 98.93 83.81

23. Unit Forced Outage Rate.. 2.72 2.24 6.57

24. Shutdowns Scheduled Over Next 6 Months: Duration i Date Type 3/13/87 REFUELING OUTAGE 3/13/87-4/24/87

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

9 Q12$$$ $NO

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R t _ _ .. - - - - _ _ __ _. _ _.__._._ __ ._ _ _

>VERAGE D'AILY UNIT POWER LEVEL _

. FOR CCTOBER 1986 Docket No.: 50-309 Unit: Maine Yankee Date: 04/Nov/86 Completed By: WILLIAM LIZOTTE Telephone: 207-882-6321 tay Avg. Daily Power Level Day - Avg. Daily PoweE Level (MWe-Net) *

(MWe-Net) 1 .................... 851 16 .................... 856 2 .................... 854 17 .................... 855 3 .................... 854 18 .................... 853 4 .................... 857 19 .................... 54 5 .................... 852 20 .................... 688 6 .................... 855 21 .................... 849 7 .................... 856 22 .................... 854 9 .................... 856 23 .................... 854 9 .................... 857 24 .................... 854 10 .................... 646 25 .................... 855 11 .................... 841 26 .................... 854 i 12 .................... 858 27 .................... 854 13 .................... 856 28 .................... 853 14 .................... 856 29 .................... 856 15 .................... 957 30 .................... 854 31 .................... 852 1

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. - i UNIT SHUTDOWNS AND POWER REDUCTIONS Dockat No. 50-309 l FOR OCTOBER 1986 Unit: Maine Yankee Date: 05/Nov/86 Completed By: WILLIAM LIZOTTE Telephone: 207-882-6321 Page: 1 of 1 Numb 3r L.R. TO 757. 14-86-9 a

.Deto 861010 861019 ,

Typn (1) S F

' Duration (Hours) 0 20.3 Ruason (2) B A Mnthod (3) 1 2 LER O N/A 86-006-0 System Cods (4) HA EA Component Coda (5) VALVEX-C ELECON-Z TURBINE VALVE AND LOOSE AND DEGRADED EXCESS FLOW CHECK GROUNDING STRAPS.

VALVE TESTING.

Ccura and THE GROUNDING

-Corrcctive STRAPS WERE Action REPAIRED.

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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) t B-Maintenance or Test 1-Manual i 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

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Docket No: 50-309 Unit Name: Maine Yankee Date: 03/Nov./86 Completed By: W.D. Lizotte Telephone: 207-882-6321 Report Month: October, 1986 NARRATIVE SUMMAR'Y OF OPERATING EXPERIENCES At the begining of the month, the plant was at 100% power.

On October 10th, power was reduced to 75% to perform turbine valve and excess flow check valve testing.

- On October 11th, power was increased to 100%.

On October 19th, the unit was manually tripped. Grounding straps on the main transformer were found to be degraded.

On October 20th, power was increased to 99%.

On October 21st, power was increased to 100%.

Pow r remained at 100% for the remainder of the month.

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o MAIRE HARHEE ATOMWPOWERCOMPARHe ,uaugr,y,?n"g%s

%@e (207) 623-3521 November 7, 1986 HN-86-140 GDH'-86-266 Office of Resource Management United States Nuclear Regulatory Commission Washington, D. C. 20555 Attention: Mr. Richard A. Hartfield, Chief Management Information Branch

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:

Enclosed you will find the Monthly Statistical Report for the Maine Yankee Atomic Power Station for October, 1986.

Very truly yours, MAINE YANKEE ATOMIC POWER COMPANY bhdV G. D. Whittier, Manager Nuclear Engineering and Licensing GDH/bjp Enclosure l

cc: Mr. Ashok C. Thadani Dr. Thomas E. Hurley Mr. Pat Sears Mr. Cornelius F. Holden 9,d l 1457L-SEN 9 i i

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