ML20205P341

Revised Monthly Operating Rept for Feb 1986

ML20205P341
Person / Time
Site:	Maine Yankee
Issue date:	02/28/1986
From:	Jacobs S, Mcgratn R Maine Yankee
To:
Shared Package
ML20205P310	List: ML20205P307 ML20205P329 ML20205P333 ML20205P341
References
NUDOCS 8605210350
Download: ML20205P341 (4)

Text

.. _. .=_ - - . _ --

OPERATING DATA REPORT Docket No.: 50-309

] Date: 05/May/86 Completed By: Steven L Jacobs Telephone: 207-882-6321 4

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

2. Repceting Period................................ February 1986 j

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

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

3. 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:

4 i

NO CHANGES s

i i

1

9. Power Level to Which Restricted, if Any (Net MWe) NO RESTRICTIONS 4 10. Reasons for Restrictions, if Any

i, i

THIS MONTH YEAR-TO-DATE CUMULATIVE 1

11. Hours In Reporting Period 672.00 1.416.00

12. Number of Hours Reactor

Was Critical........... 520.28 1.249.46 93.587.18 l 13. Reactor Reserve Shutdown

Hours.................. 0.00 0.00 0.00 l 14. Hours Generator On-line.. 503.25 1.228.75 90.873.41 j 15. Unit Reserve Shutdown

! Hours.................. 0.00 0.00 0.00 j 16. Gross Thermal Energy l Generated (MWH)........ 1.238.645.00 3.037.952.00 205.038.633.00 l 17. Gross Electrical Energy Generated (MWH)........

, 414.800.00 1.020.020.00 67.259.740.00 j 18. Net Electrical Energy Generated (MWH)........ 401.295.00 986.166.00 64.172.481.00

19. Unit Service Factor...... 74.89 86.78 77.91

20. Unit Availabilty Factor.. 74.89 86.78 78.70 l 21. Unit Capacity Factor (Using MDC Net)........ 73.72 85.98 69.75

22. Unit Capacity Factor i (Using DER Net)........ 72.38 84.42 67.90

23. Unit Forced Outage Rate.. 0.00 1.48 6.79 4

24. Shutdowns Scheduled Over Next 6 Months: NONE i

j 25. If Shutdown at End of Report Period, Estimated Date of Startups 3/06/86 i

1 i

g2)poks to gor

' R s

-ww. v -nm--e -,--,e,-,-,-,p. ----,..,,-,e--w-,,- -

m,..,__---m-,

, , - - , , ~ , - - ,nn,,,...,--e. - - , , -v.-----,.-,.w--,. - , - , -

I

- */

AVERAGE DAILY UNIT POWER LEVE1.

FOR FEBRUARY 1986 Docket No.: 50-309 Unit: Maine Yankee

, Date: 05/ Mar /86 Completed By: Steven L Jacobs Telephone: 207-882-6321

< Day Avg. Daily Power Level Day Avg. Daily Power Level (MWe-Net) (MWe-Net) 1 . ................... 616 16 .................... 844 2 . ................... 838 17 .................... 850 3 . ................... 850 18 .................... 851 4 . ................... 851 19 .................... 794 5 . ................... 848 20 .................... 708 6 . ................... 849 21 .................... 590 l

l 7 . ................... 842 22 .................... O 8 . ................... 846 23 .................... O 9 . ................... 847 24 .................... O

. 10 . ................... 842 25 . . . . . . . . . . . . . . . . . . . .- O 11 . ................... 843 2'6 .................... O

12 . ................... 839 27 .................... O i

13 . ................... 834 28 .................... O 14 . ................... 832 15 . ................... 508 1

I l

=

e m-- -,v-- - .-

-n- , , , - , , - - g y -n,,n - .v a m.

_n- -,m

+3 , ,

e*

UNIT SHUTDOWNS AND POWER REDUCTIONS Docket No.: 50-309 FOR FEBRUARY 1986 Unit: Maine Yankee I

Date: 05/May/86 Completed By: Steven L Jacobs Telephone: 207-882-6321 Page: 1 of 1 Number L. R. to 55% L. R. to 10% 8-86-9 D:te 1/Feb/86 14/Feb/86 21/Feb/86 Type (1) F F S Duration (Hours) O O 168.8 R2rson (2) B B B Method (3) N/A N/A 1 LER # N/A N/A N/A Syctem Code (4) HH HA HA Component Code (5) PUMPXX-B INSTRU-C GENERA-D Turbine valve Reduced power to Shutdown to repair testing and repair components hydrogen leakage trouble shooting in turbine valve from Main of the main feed limits circuitry. Generator.

Cruse and pump (P2C) oil Corrective system.

Action l

l

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.Oi61)

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

l Docket No.: 50-309 Unit Name: Maine Yankee Date: 03/ Mar /86 Completed By: R. S. McGrath Telephone: 207-882-6321 Report Month: February, 1986 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCES At the beginning of the month the plant was at 99.3% power.

On February 1st, a load reduction to 55% power was made to troubleshoot the turbine driven main feed pump (P2C) oil system and to allow turbine valve testing. Loading was commenced late in the day.

On February 2nd, power was stabilized at 99.3% due to RPS pre-trips.

On February 7th, the turbine valve limiter drifted down. Power remained at 98.3% because the limiter could not be raised. ,'

On February 15th, power was reduced to 10% to repair the turbine valve limiter. Later in the day power was increased to 99.2% by midnight.

On February 19th, power was reduced to 84% due to a generator hydrogen leak.

1 On February 21st, the unit was shutdown to repair the generator hydrogren leak.

On February 27th, the reactor was brought critical in preparation for plant startup.

On February 28th, the reactor was shutdown because the generator repairs ware unsuccessful in stopping the hydrogen leak.

l The plant remained shutdown through the remainder of the month.

1 e

e

- , - - , , -, ,, - - - - - . - - , - __ _-_____ , - _ , , , - - - - -