ML20236B593

Monthly Statistical Rept for Feb 1989 for Maine Yankee Atomic Power Station

ML20236B593
Person / Time
Site:	Maine Yankee
Issue date:	02/28/1989
From:	Rivard D Maine Yankee
To:
Shared Package
ML20236B589	List: ML20236B584 ML20236B593 ML20236B611
References
NUDOCS 8903210181
Download: ML20236B593 (5)

Text

%..<..

I' 1

l l

I i

Maine gankee i

\\

j Monthly Statistical Report 1

i For February 1989 l

l 8903210181 890309 PDR ADOCK 05000309 PNV g

?s,., ' '

• l Docket No 50-309 Unit Name:

Maine Yankee Date:

03/06/89 Completed By: D.A. Rivard L

Telephone:

207-882-6321; Report Month: February, 1989 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCES.

At.the beginning of the month, the-unit was at 100% power.

On.14 February, it was determined that some of the containment electrical penetrations may not be properly environmentally qualified.

The plant was shut down to repair the electrical penetrations.

On 21 February, The. reactor was made critical and the main unit was phased to the grid. 'During the' power escalation,-a failure of a main.

feed water regulating valve stem was discovered and a power decrease

{

was commenced.

j On 22 February, the main unit was removed from the grid.

The reactor l

was shut down and then returned to power later in the day.

On 23-February, The main unit was returned to the grid and power was raised to 100%.

The unit was operated at 100% power for the remainder of the month.

i l

.O i

'E OPERATING DATA REPORT-

-Docket-No.:

50-309-Date:

06/ Mar /89 Completed.By:

'D.

A. RIVARD

_ Telephone 207-882-6321 1

i 1.

Unit Name.......................................

Maine Yanken

,2.

Reporting Period................................

Februarv 1989 l

3.; Licensed. Thermal, Power (MWt)....................

2630

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

864

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

825 6.1 Maximum Dependable Capacity (Gross MWe).........

850

-l

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

810

)

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

-Since Last. Report, Give Reasons:

NO CHANGES 1

I

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

10. Reasons for Restrictions, if Any:

THIS MONTH'

.. YEAR-TO-DATE CUMULATIVE

'j i

11. Hours In Reporting Period 672.00 1,416.00 12.LNumber of Hours Reactor Was Critical............

500:14 -

1.225.61 114,028.60

13. Reactor' Reserve Shutdown Hours..................

0.00 0.00 0.00

-14. Hours Generator On-line..

471.08 1,174.40 110,716.89

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

0.00 0.00 0.00 116. Gross Thermal Energy Generated (MWH)........

1,206,417.00 3,023,480.00 254,096,193.00

. 1 '7. Gross Electrical Energy Generated (MWH)........

411.180.00 1.028,180.00 83.116.540.00 l

18. Net Electrical Energy Generated (MWH)........

394,320.00 983,955.00 79,472,129'.00

19. Unit Service Factor......

70.10 82.94 77.49

20. Unit Availability Factor..

70.10 82.94 77.49

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

72.44 85.79 70.13

22. Unit Capacity Factor (Using DER Nat)........

71.13 84.23 68.38 23.' Unit Forced Outage Rate..

29.90 17.06 7.19

' 24. Shutdowns Scheduled over Next 6 Months:

NONE

25. If Shutdown at End of Report Period, Estimated Date of Startup:

N/A

'it APERAGE DAILY UNIT POWER LEVEL.

FOR FEBRUARY.1939

~

Docket No.:

50-309 I

Unit Maine Yankee Date 06/ Mar /89 Completed By:

D.

A.

RIVARD Telephone: ~

207-882-6321 i

Day Avg. Daily Power Level Day-Avg.' Daily Power Level (MWe-Net)

(MWe-Net) 1 861 16 0

2 859 17 0

3 861 18 O

4 860 19 0

5 863 20 0

6 863 21 79 7

861 22 25 i

8 859 23 234 i

9 859 24 864 I

10 863 25 860 11 862 26 861 1;2 862 27 863 I

13 861 28 863 1

i, 14 587 l

i 1

15 0

bi_1_______._.____

• >; 7 f.^.

. UNIT SHUTDOWNS AND POWER REDUCTIONS Donket No.:

50-309 FOR FEBRUARY 1989 Uni t Maine Yankee Date:

09/ Mar /89 Completed By:

D.

A.

RIVARD Telephone:

207-882-6321 Page:

1 of 1 Nuaber 2-89-11 3-89-11 j

h h

f i

Data 890222 890214 h

h h

Type (1)

F F

Duration (Hours) 166.6 34.3 l

I Roeson (2)

H A

h Msthod (3) 1 1

h LER #

89-002 N/A System-Code (4)

SA CH R

Component Code (5)

PENETR-D VALVEX-F I

i l

l The plant was shut The unit was shut

]

down when it was down due to a t

determined that failure of a main i

some. containment feed water reg.

Cause and penetration seals valve stem.

All Corrective may not be environ feed reg. valves Action mentally qualified were inspected and j

Repairs were made stems replaced.

I and the unit was Unit returned to returned to operation.

operation.

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

.