ML20206D881

Monthly Operating Rept for Mar 1986

ML20206D881
Person / Time
Site:	Maine Yankee
Issue date:	03/31/1986
From:	Jacobs S, Whittier G Maine Yankee
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
7446L-AJP, GDW-86-88, MN-86-52, NUDOCS 8606200394
Download: ML20206D881 (5)

Text

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! . I DPERATING DATA REPORT Docket No.: 50-309 Date: 01/Apr/86 Completed By: Steven L Jacobs Telephone: 207-882-6321

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

2. Reporting Period................................ March 1996

3. Licensed Thermal Power (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 (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 744.00 2.160.00

12. Number of Hours Reactor Was Critical........... 485.33 1.734.79 94.072.51

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

14. Hours Generator On-line.. 480.83 1.709.58 91.354.24

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

16. Gross Thermal Energy Generated (MWH)........ 1.173.279.00 4.211.231.00 206.211.912.00

17. Gross Electrical Energy Generated (MWH)........ 396.680.00 1.416.700.00 67.656.420.00

18. Net Electrical Energy Generated (MWH)........ 383.807.00 1.369.973.00 64.556.288.00

19. Unit Service Factor...... 64.63 79.15 77.82

20. Unit Availabilty Factor. . 64.63 79.15 78.61

21. Unit Capacity Factor ' '

(Using MDC Net)........ 63.69 78.30 69.72 *

22. Unit Capacity Factor (Using DER Net)........ 62.53 76.88 67.86

23. Unit Forced Outage Rate.. 35.37 20.85 7.17

24. Shutdowns Scheduled Over Next 6 Months: NONE

25. If Shutdown at End of Report Period, Estimated Date of Startup: N/A 8606200394 860331 9 DR ADOCK 0000 Ed i

.. , i AVERAGE DAILY UNIT POWER LEVEL FOR MARCH 1986 Docket No.: 50-309 Unit: Maine Yankee Date: 01/Apr/86 Completed By: Steven L Jacobs Tel ephone: 207-882-6321 Day Avg. Daily Power Level Day Avg. Daily Power Level (MWe-Net) (MWe-Net) 1 .................... O 16 .................... 857 2 .................... O 17 .................... 854 3 .................... O 18 .................... 854 4 .................... O 19 .................... 854 5 .................... O 20 .................... 856 6 .................... O 21 .................... 853 7 .................... O 22 .................... 855 8 .................... O 23 .................... 856 9 .................... O 24 .................... 856 10 .................... O 25 .................... 854 11 .................... 3 26 .................... 855 12 .................... 217 27 . . . . . . . . . . . . . . . . ,_,_. . .

. 855 13 .................... 393 28 .................... 855 14 .................... 848 29 .................... 856 15 .................... 854 30 .................... 855 ,

31 .................... 855 9

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UNIT SHUTDOWNS AND POWER REDUCTIDNS Docket No.: 50-309 '

FOR MARCH 1986 Unit Maine Ytnkee Date: 02/Apr/86 Completed By: Steven L Jacobs Telephone 207-882-6321 Page: 1 of 1 Number 8-86-9 D2te 860221 Type (1) F Duration (Hours) 263.2 Rerson (2) B Method (3) 1 LER # N/A System Code (4) HA Component Code (5) GENERA-D Shutdown to repair hydrogen leakage from Main Generator.

Ccuse and Startup delayed Corrective due to chloride.

Acti on intrusion in

______ _ _ .___.-~

tundenser.-- ~ ~ ~

This outage is carried over from last month.

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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 Failurc 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 3< 4-Other (Explain) as above.

License Examination

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Docket No.: 50-309 -

Unit Name Maine Yankee Date: 01/Apr/86 Completed By: J. M. Taylor Telephone: 207-882-6321 Report Montha March, 1986 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCES At the beginning of the month, the plant was in hot shutdown while a gnnerator hydrogen leak was being repaired.

Cn March lith, the reactor was made critical, the unit was phased to the grid, and loading commenced.

On March 12th, 30% power was maintained for a boron soak.

On March 13th, loading commenced.

On March 14th, 98.8% power was reached and maintained while the feed flow calorimetric was eval uated. A limit of 882 MWe was maintained pending generator capability evaluation.

On March 17th, 98.8% power (882 MWe) was maintained while the generator hydrogen gland seal ring rub test and vibrations in the exciter and gunerator were evaluated.

For the remainder of the month, a limit of 802 MWe was maintained due to generator vibration concerns. '

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. I e o MAIRE HARHEE 'ATOMWPOWER00MPARSe ,uaug,ay,?n"g%'s h (207) 623-3521 e

April 7, 1986 MN-86-52 GDH-86-88 Office of Resource Managerient United States Nuclear Regulatory Commission Hashington, 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 March, 1986.

l Very truly yours, '

HAINE YANKEE ATOMIC POWER COMPANY l h81/

G. D. Whittier, Manager 1

Nuclear Engineering and Licensing GDH/bjp Enclosure cc: Mr. Ashok C. Thadani l Dr. Thomas E. Murley i Mr. Pat Sears l Mr. Cornelius F. Holden 7446L-AJP M '

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