ML20149K235

Monthly Operating Rept for Jan 1996 for Maine Yankee Nuclear Power Plant

ML20149K235
Person / Time
Site:	Maine Yankee
Issue date:	01/31/1996
From:	Stewart Bailey, Hebert J Maine Yankee
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
JRH-96-33, MN-96-15, NUDOCS 9602220064
Download: ML20149K235 (6)

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MaineYankee RELIABLE ELECTRICITY SINCE 1972 329 BATH ROAD

• BRUNSWICK, MAINE 04011 + (207) 798-4100 February 15, 1996 3

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MN-96-15 JRH-96-33 UNITED STATES NUCLEAR REGULATORY COMMISSION Attention: Document Control Desk Washington, DC 20555

References:

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

(b) NUREG-0020, Licensed Operating Reactor Status Summary Report

Subject:

Maine Yankee Monthly Statistical Report - January 1996 Gentlemen:

Enclosed please find the January 1996 Monthly Statistical Report for Maine Yankee.

If you have any questions, please do not hesitate to contact me. -

Very truly yours, W<Q James R. Hebert, Manager ,

Licensing & Engineering Support Department SJB.

Enclosure c: Mr. Thomas T. Martin Mr. J. T. Yerokun Mr. E. H. Trottier Mr. Patrick J. Dostie 9602220064 DR 960131 '

ADOCK 05000309 PDH

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.. .. OPERATING DATA REPORT Docket No.: 50-309 Date: 16/Feb/96 Completed By: S. J. BAILEY l Telephone: 207-798-4241

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

2. Reporting Per1od................................ January 1996

3. Licensed Thermal Power (HWt).................... 2700 '

4. Nameplate Rating (Gross HWe).................... 920

5. Design Electrical Rating (Net HWe).............. 870

6. Maximum Dependable Capacity (Gross HWe)......... 900

7. Maximum Dependable Capacity (Net HWe)........... 860

8. If Changes in Capacity Ratings (Items Number 3-7) l Since Last Report, Give Reasons: J NO CHANGES i

9. Power Level to Which Restricted, if Any (Net HWe) 795 J

10. Reasons for Restrictions, if Any:

By NRC Confirmatory Order dated Jan. 3, 1996. Maine Yankee is restricted to 2440 MWt. A new computer code for Small Break LOCA is being evaluated at Maine Yankee to allow operation to 2700HWt THIS HONTH YEAR-TO-DATE CUMULATIVE

11. Hours In Reporting Period 744.00 744.00

12. Number of Hours Reactor i Was Critical........... 481.67 481.67 157,519.48 I

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

14. Hours Generator On-line.. 347.64 347.64 152,802.19

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

16. Gross Thermal Energy Generated (HWH)........ 702,251.00 702,251.00 362,646,342.00

17. Gross Electrical Energy Generated (HWH)........ ,

230,025.00 230,025.00 119,519,021.00 l 18. Net Electrical Energy

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Generated (HWH)........ 217,184.00 217,184.00 114,698,583.00

19. Unit Service Factor...... 46.73 46.73 75.06 i 20. Unit Availabilty Factor.. 46.73 46.73 75.06_

21. Unit Capacity Factor (Using HDC Net)........ 33.94 33.94 69.70

22. Unit Capacity Factor (Using DER Net)........ 33.55 33.55 68.22

23. Unit Forced Outage Rate.. 3.09 3.09 7.77

24. Shutdowns Scheduled Over Next 6 Honths: NONE

25. If Shutdown at End of Report Period, Estimated Date of Startup: N/A 1

s Docket No: 50-399 Unit Name: Maine Yankee Date 921496 i Completed By: S.J. Bailey ,

1 Telephone: 207-798-4241' 4

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Report Month

January, 1996 l

NARRATIVE

SUMMARY

OF OPERATING EXPERIENCES 1

At the beginning of the month, the unit was shutdown for steam .

generator work. t l On January 11, the reactor was made critical, and power increased to 4

let on January 16.

j On January 16, power was held at let for turbine roll and testing.

l On January 16, the main generator was phased to the grid.

l On January 16, the main generator was taken off-line due to problems g controlling main generator temperature.

On January 16, the main generator was phased to the grid.

On January 17, 1996, power was held at 24.5% for boron soak of the steam generator and electric soak of the main generator.

On January 18, a power reduction was commenced due to turbine

generator overspeed testing. The main generator was taken off-line, but phased to the grid that same day.

i On January 19, power was held at 48% for power escalation testing.

Power increase was commenced on January 20, but was held again at 55%

i for steam driven feed pump (P-2C) phase on. Power increase commenced on January 21.

1 On January 22, power was held at 76% for circulating water box backwash.

Power increase commenced and the unit reached 90.3% (2440 MWt) on

! January 24, and remained at this power the rest of the month.

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I UNIT SHUTDOWNS AND PONER REDUCTIONS Docket No.: 50-309 FOR JANUARY 1996 Unit: Maine Yankee Date: 16/Feb/96 Completed By: S. J. BAILEY Telephone: 207-798-4241 Page: 1 of 2 Murcer 08-95-14 01-96-15 02-96-15 Drte l 950402 ll 960116 ll 960118 Type (1) p S [ F ll S Duration (Hours) 368.9 11.1 16.3 Raason (2) l B , A B Mathod (3) ,

4 i 1 ll 1 LER # [ 95-004 i N/A l! N/A System Code (4) HB HA HA Component Code (5) HTEICH-F GENERA-D TURBIN Continuation from Problems Turbine generator previous month, controlling overspeed testing. ,

Unit shutdown for main generator l steam generator temperature.

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Cause and work. The unit i Corrective phased on-line  !

Action January 16.

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1. TYPE: 2. REASON: (cont) 4. SYSTEM CODE: I (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. HETHOD: (LER) File (NUREG.0161) l B-Haintenance or Test 1-Manual l C-Refueling 2-Manual Scram 5. COMPONENT CODE:

D-Regulatory Restriction 3-Automatic Scram Exhibit I-Same source D-Operator Training & 4-Other (Explain) as above.

License Examination i l

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' UNIT' SHUTDOWNS AND POWER REDUCTIONS Docket No.: 50-309 i FOR JANUARY 1996 Unit Maine Yankee l Date: 16/Feb/96 l Completed By: S. J. BAILEY Telephone 207-798-4241 Page: 2 of 2 l

l Number 03-96-15 Date [ 960124 , l Type (1) H F ll ll Duration (Hours) 184 Reason (2) ll D ,

l Method (3) g 4 L ll )

LER # ll N/A ll System Code (4) ZZ Component Code (5) l ZZZZZZZZ l By NRC Confirma-tory Order, Maine Yankee is restricted to cause and 2440 MWt until a Corrective new computer code l Action is evaluated at  !

Haine Yankee to I allow operation at 2700 MWt.

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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 l H-Other (Explain) Entry Sheets for

2. REASON Licensee Event Report A-Equipment Failure 3. METHOD: (LER) File (NUREG.0161)

B-Haintenance or Test 1-Hanual 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 3

AVERAGE DAILY UNIT POWER LEVEL FOR JANUARY 1996 Docket No.: 50-399 Unit Maine Yankee I Date 15/Feb/96 Completed By 8. J. BAILEY Telephone: 297-798-4241 Ocy Avg. Daily Power Level Day Avg. Daily Power Leve?

(NWe-Net) (NWe-Net)

I 1 .................... 9 16 .................... 11 -

2 .................... 9 17 .................... 148 3 .................... 9 18 .................... 45 i

4 .................... 9 19 .................... 281 '

5 .................... 9 29 .................... 397 1 1

6 .................... 9 21 .................... 423 I l

7 .................... # 22 .................... 678 ,

1 8 .................... 9 23 .................... 776 9 .................... 9 24 .................... 777 le .................... 9 25 .................... 789 )

11 .................... 9 26 .................... 789 1

12 799

.................... 9 27 ....................

13 .................... 9 28 .................... 788 4 i

2 14 .................... 9 29 .................... 791 15 .................... 9 30 .................... 788 I i

J 31 .................... 789

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