ML20128Q043

Monthly Operating Rept for Sept 1996 for Maine Yankee

ML20128Q043
Person / Time
Site:	Maine Yankee
Issue date:	09/30/1996
From:	Stewart Bailey, Hebert J Maine Yankee
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
JRH-96-227, MN-96-152, NUDOCS 9610180206
Download: ML20128Q043 (6)

Text

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MaineYankee RELIABLE ELECTRICtTY SINCE 1972 329 BATH ROAD e BRUNSWICK, MAINE 04011 + (207) 798-4100 October 9,1996 MN-96-152 JRH-96-227 1

4 UNITED STATES NUCLEAR REGULATORY COMMISSION i Attention: Document Control Desk I Washington, DC 20555

References:

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

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

Subject:

Maine Yankee Monthly Statistical Report - September 1996 i

Gentlemen:

Enclos'ed please find the September 1996 Monthly Statistical Report for Maine Yankee.

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

Very truly yours, M -

hames R. Hebert, Manager Licensing & Engineering Support Department SJB Enclosures c: Mr. Hubert Miller -

Mr. J. T. Yerokun y'/

Mr. Daniel H. Dorman

, Mr. Patrick J. Dostie Mr. Uldis Vanags 9610180206 960930 PDR ADOCK 05000309 g PDR ,

180034 N:\TRA"SFER\MSR.LTR

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OPERATING DATA REPORT Docket No.: 50-309 Date: 08/Oct/96 Completed By: S. J. BAILEY Telephone: 207-798-4241

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

2. Reporting Period................................ September 1996

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

l j 4. Nameplate Rating (Gross NWe).................... 920

5. Design Electrical Rating (Net NWe).............. 870 i 6. Maximum Dependable Capacity (Gross HWe)......... 900 I

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

8. If Changes in capacity Ratings (Items Number 3-7) l Since Last Report, Give Reasons:

NO CHANGES l

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

10. Reasons for Restrictions, if Any:

, By NRC Confirmatory Order dated Jan. 3. 1996. Maine Yankee is i

restricted to 2440 MWt. A new computer code for Small Break LOCA j

is beino evaluated at Maine Yankee to allow operation to 2700HWt l

l 7 THIS HONTH YEAR-TO-DATE CUMULATIVE

11. Hours In Reporting Period 720.00 6.575.00

12. Number of Hours Reactor Was Critical........... 696.40 5,356.22 162,394.03

13. Reactor Reserve Shutdown

, Hours.................. 0.00 0.00 0.00 1

14. Hours Generator On-line.. 679.75 5,063.69 157.518.24

15. Unit Reserve Shutdown

Hours.................. 0.00 0.00 0.00

16. Gross Thermal Energy Generated (HWH)........ 1,607,831.00 12,051,763.00 373,995.854.00

. 17. Gross Electrical Energy i Generated (MNH)........ 536.741.00 4.065,404.00 123.354.400.00 j 18. Net Electrical Energy

Generated (HWH)........ 517,998.00 3,887,854.00 118,369.253.00

19. Unit Service Factor...... 94.41 77.01 75.22

20. Unit Availabilty Factor.. 94.41 77.01 ,75.22 l 21. Unit Capacity Factor

(Using HDC Net)........ 83.66 68.76 69.G2_

22. Unit Capacity Factor

)

(Using DER Net)........ 82.69 67.97 68.34, a

23. Unit Forced Outage Rate.. 5.60 18.19 8.16,

24. Shutdowns Scheduled Over Next 6 Honths: NONE

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

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Docket No: 50-309 Unit Names Maine Yankee Date: 10/08/96 Completed By: S.J. BAILEY Telephone: 207-798-4241 Report Months September, 1996 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCES At the beginning of the month, the unit was off-line to install safety lines. relief The valves on containment penetration component cooling outage was extended due to control problem with the steam was driven found auxiliary feed pump P-25B and P-14A's SIAS relay wire missing.

completed. Additional safeguard logic testing was also HWTh on September 3. came on-line September 2 and returned to 2440 The unit On September 7, power was reduced to 871 to troubleshoot bearing water flow problems on circulating water pump P-26D. The unit returned to 2440 MWTh on September 8.

On September water pump P-26D.10, power was reduced to 80% to replace circulating where it remained the rest of the month.The unit returned to 2440 MWTh on September 16,

UNIT SHUTDOWNS AND POWER REDUCTIONS Docket No.: 50-309 FOR SEPTEMBER 1996 Unit: Maine Yankee Date: 10/Oct/96 Completed By: S. J. BAILEY Telephone: 207-798-4241 ,

Pages 1 of 2 i Number L.R. to 90.3% 04-96-15 L.R. to 87%

4 Date H 960124 j 960720 h 960907 Type (1) H F F j F Duration (Hours) 0 40.3 0 Reason (2)

D H B

{ ,

[

4 Method (3) l 4 h 2 g 4 LER # l N/A l 9C-022 N/A H

1 System 4

Code (4) ZZ WB HF

component

Code (5) ZZZZZZZZ VALVE-FB PUMPII-B By NRC Confirma- Offline to install Power reduction to tory Order, Maine safety relief val- troubleshoot Yankee is ves; control prob- bearing water flow restricted to lem with feed pump problem on Cause and 2440 HWTh until a P-25B; P-14A's circulating water I

Corrective new computer code SIAS relay wire pump P-26D.

Action is evaluated to missing; addt'l Returned to 2440 allow operation at safeguard logic HWTh on 9/8/96.

! 2700 HWTh. testing completed.

1 Phased main

generator on 9/2.

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 j 2. REASON Licensee Event Report k A-Equipment Failure 3. HETHOD: (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

UNIT SHUTDOWNS AND POWER REDUCTIONS Docket No.: 50-309

• FOR SEPTEMBER 1996 Unit Maine Yankee Date: 10/Oct/96 Completed By: S. J. BAILEY Telephone: 207-798-4241 Page: 2 of 2 l l

1 1

Number L.R. to 80% l 4

Date [ 960910 h Type (1) [ F p L

Duration (Hours) 0 Raason (2) '

B h Hathod (3) p 4 q q LER # l N/A H l System

, Code (4) HF Component Ccde (5) PUMPII-B l Power reduction to e replace circu-lating water pump P-26D. Returned Ccuse and to 2440 HNTh on Corrective l 9/16/96.

j Action [

i 1

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. HETHOD: (LER) File (NUREG.0161)

B-Haintenance or Test 1-Hanual C-Refueling 2-Hanual Scram 5. COMPONENT CODE:

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

License Examination

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' AVERAGE DAILY UNIT POWER LEVEL

FOR SEPTEMBER 1996 Docket No.: 50-309 Unita Maine Yankee

, Date: 98/Oct/96

. Completed By: S. J. BAILEY o l

Telephone: 207-798-4241 i

Dcy Avg. Daily Power Level Day Avg. Daily Power Level, (MWe-Net) (MWe-Net) I i

1 .................... 0 16 726 1

2 .................... 88 17 .................... 795 3 .................... 688 18

, .................... 793 4 .,.................. 787 19 .................... 794 i 5 .................... 793 20 .................... 794 e

}

6 .................... 792 21 .................... 794 7 .................... 792 22 .................... 794 8 .................... 789 23 .................... 794 1

9 .................... 794 24 .................... 793 10 .................... 759 25 .................... 794 11 .................... 691 26 .................... 793 l l

12 .................... 692 27 .................... 795 l l

13 .................... 692 28 .................... 791 14 .................... 694 29 .................... 790 15 .................... 698 30 .................... 796

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