ML20132C023

Monthly Operating Rept for Nov 1996 for Maine Yankee.W/

ML20132C023
Person / Time
Site:	Maine Yankee
Issue date:	11/30/1996
From:	Stewart Bailey, Hebert J Maine Yankee
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
RTR-NUREG-0020, RTR-NUREG-20 JRH-96-283, MN-96-184, NUDOCS 9612180070
Download: ML20132C023 (5)

Text

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e MaineYankee RELI ABLE ELECTRICITY SINCE 1972 329 BATH ROAD a BRUNSWICK, MAINE 04011 * (207) 798-4100 l

December 10,1996 l MN-96-184 JRH-96-283  !

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.e UNITED STATES NUCLEAR REGULATORY COMMISSION Attention: Document Control Desk Washington, DC 20555 l

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 - November 1996 Gentlemen:

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

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

Very truly yours, 6

James R. Hebert, Manager Licensing & Engineering Support Department SJB Enclosures Y(

c: Mr. Hubert Miller Mr. J. T. Yerokun Mr. Daniel H. Dorman )

Mr. Patrick J. Dostie Mr. Uldis Vanags T

]*' 9612180070 961130 PDR ADOCK 050003 9 R

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a . .

2 OPERATING DATA REPORT Docket No.: 50-309 Date: 10/Dec/96 g Completed By: S. J. BAILEY Telephone: 207-798-4241

1. Unit Name....................................... Maine Yankee f i 2. Reporting Period................................ November 1996

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

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

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:

l NO CHANGES t

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

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 i is being evaluated at Maine Yankee to allow operation to 2700MWt l THIS MONTH YEAR-TO-DATE CUMULATIVE ,

11. Hours In Reporting Period l 720.00 8,043.00 t

12. Number of Hours Reactor I Was Critical........... 720.00 6,742.98 163.780.79

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

14. Hours Generator On-line.. 720.00 6,444.35 158,898.90

15. Unit Reserve Shutdown Hours.................. 0.00 0.00 0.00 1

16. Gross Thermal Energy '

Generated (HWH)........ 1,747,205.00 15,385.302.00 377,329,393.00

17. Gross Electrical Energy Generated (HWH)........ 587,834.00 5,186,920.00 124,475,916.00 l

18. Net Electrical Energy Generated (MNH)........ 567,762.00 4,970,901.00 119,452,300.00

19. Unit Service Factor...... 100.00 80.15 75.35 i

20. Unit Availabilty Factor.. 100.00 80.15 75.35

21. Unit Capacity Factor (Using MDC Net)........ 91.69 71.89 69.91

22. Unit Capacity Factor (Using DER Net)........ 90.64 71.07 68.45

23. Unit Forced Outage Rate.. 0.00 15.81 8.14 l

24. Shutdowns Scheduled Over Next 6 Months: NONE

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

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f AVERAGE DAILY UNIT POWER LEVEL FOR NOVEMBER 1996 Docket No.: 50-309 Unit Haine Yankee Date: 06/Dec/96 ,

Completed By: S. J. BAILEY  ;

Telephone: 207-798-4241 1

Day Avg. Daily Power Level Day Avg. Daily Power Leveli (HWe-Net) (HWe-Net) l 1 .................... 793 16 .................... 794 2 .................... 796 17 .................... 793 3 .................... 792 18 .................... 795 4 794 19

.................... .................... 792 l i

5 .................... 719 20 .................... 794 l i

6 790 21

.................... .................... 791 7 .................... 798 22 .................... 793 8 .................... 791 23 .................... 739 9 .................... 796 24 .................... 794 10 .................... 792 25 .................... 789 11 .................... 792 26 .................... 795 12 .................... 794 27 .................... 797 13 .................... 794 28 .................... 789 14 .................... 791 29 .................... 788 15 ................ ... 794 30 .................... 791 i

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Docket No: 50-309 Unit Names Maine Yankee Date: 120696 Completed By: S.J. Bailey Telephone 207-798-4241 Report Month: November, 1996 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCES The unit operated at full power, 2440 MWTh, until November 5, when power was reduced to 801 to manually clean condenser waterboxes A and D.

All condenser waterboxes were backwashed and the unit returned to 2440 MWTh on November 6.

On November 23, power was reduced to 80% for mussel control in all condenser waterboxes. The unit returned to 2440 MWTh on November 23 where it remained the rest of the month.

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. . j j UNIT SHUTDOWNS AND POWER REDUCTIONS Docket No.: 50-309 FOR NOVEMBER 1996 Unit Maine Yankee 3 Date: 10/Dec/96 '

Completed By: S. J. BAILEY I Telephone 207-798-4241 l Page: 1 of 1 Number L.R. to 90.31 L.R. to 80% L.R. to 80% l Date p 960124 961105 l J 961123 Type (1) [ F F S

{ h Duration (Hours) 0 0 0 i

Reason (2) l D l B

[ B Hethod (3) ll 4 l l 4 .I 4 LER # l N/A g N/A N/A

[

System Code (4) ZZ HF HF {

Component Code (5) ZZZZZZZZ HTEXCH-D HTEXCH-D By NRC Confirma- Power reduction Power reduction to tory Order, Maine to manually clean 80% for mussel Yankee is condenser water- control in all restricted to boxes A and D. condenser water- i Cause and 2440 MWTh until a All condenser boxes. Unit Corrective new computer code waterboxes were returned to 2440 Action is evaluated to backwashed and the MWTh on November allow operation at unit returned to 23.

2700 HWTh. 2440 MWTh on November 6.

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-Haintenance 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

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