ML20093F522

Monthly Operating Rept for Sept 1995 for Pilgrim Nuclear Power Station

ML20093F522
Person / Time
Site:	Pilgrim
Issue date:	09/30/1995
From:	Monro W, Olivier L BOSTON EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BECO-LTR#95-107, NUDOCS 9510180010
Download: ML20093F522 (7)

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Tech. Spec. 6.9.A.2

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Boston Edison d Pilgrim Nuclear Power Staten Rocky Hdi Road Plymouth, Massachusetts 02360 L J. Olivier Vice President Nuclear operations October 12,1995 and station oirector BECo Ltr, #95-107 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Docket No. 50-293 License No. DPR-35 SEPTEMBER 1995 MONTHLY REPORT In accordance with PNPS Technical Specification 6.9.A.2, a copy of the Operational Status Summary for Pilgrim Nuclear Power Staticn is attached for your information and planning. Should you have any questions concerning this report please contact me directly.

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.J. Olivier

WJM/laa!9458 Attachment cc: Mr. Thomas T, Martin Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Senior Resident Inspector 1701A2 f

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9510180010 950930 r PDR ADOCK 05000293 11 R .PDR I i

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I OPERATING DATA REPORT DOCKET NO. 50-293

,' DATE T0/12/95

+- COMPLETED BY: W.J. Munro

, TELEPHONE (508) 830-8474 OPERATING STATUS NOTES l

1. Unit Name Pilgrim I ,

4 2i ' Reporting Period .

September 1995  !

3. ' Licensed Thermal Power (MWt) 1998 l

4. Nameplate Rating (Gross MWe) 678 )

5. Design Electrical Rating (Net MWe) 655

6. Maximum Dependable Capacity (Gross MWe) 696

7. Maximum Dependable Capacity (Net MWe) 670

8. If Changes Occur in Capacity Ratings (Item Number 3 Through 7) Since Last Report, Give Reasons

, NONE

9. ' Power Level To Which Restricted, if Any (Net MWe): None 10.- Reasons For Restrictions, If Any: N/A

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This Month Yr-to-Date Cumulative i

i 11. Hours in Reporting Period 720.0 6551.0 199943.0

. 12. Hours Reactor Critical 720.0 4857.0 124057.1-j 13. Hours Reactor Reserve Shutdown M M M

14. Hours Generator On-Line 720.0 4753.8 119614.9

15. Hours Unit Reserve Shutdown 0.0 0.0 ^ 0.0

16. Gross Thermal Energy Generated (MWH) 1414138.0 9213921.0 21196137.0

17. Gross Electrical Energy Generated (MWH) 483730.0 3161870.0 71781544.0

18. Net Electrical Energy Generated (MWH) . 466384.0 3042769.0 -69000546.0

19. Unit Service Factor 100.0 72.6 59.8

20. Unit Availability Factor 100.0 72.6 59.8

21. Unit Capacity Factor (Using MDC Net) 96.7 69.3 51.5

22. Unit Capacity Factor (Using DER Net) 98.9 70.9 52.7 23.- Unit Forced Outage Rate 0.0 5.2 12.2

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each) NONE 3

25. If Shutdown at End of Report Period,

Estimated Date of Startup - Unit Operating I'

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, AVERAGE DAILY UNIT POWER LEVEL a-DOCKET NO. 50-293 DATE: 10/12/95 COMPLETED BY: W.J. Munro TELEPHONE: (508) 830-8474 MONTH September 1995 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 657 17 488 2 659 18 661 3 658 19 658 4 658 20 659 5 660 21 659 6 660 22 660 7 663 23 597 ,

8 663 24 536

-9 660 25 662 10 662 26 661 11 660 27 661 12 659 28 659 13 660 29 656 14 662 30 654 15 660 16 660 This format lists the average daily unit power level in MWe-Net for each day in the reporting month, coin,uted

, to the nearest whole megawatt.

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BOSTON EDISON COMPANY PILGRIM NUCLEAR POWER STATION DOCKET NO. 50-293 OPERATIONAL

SUMMARY

FOR SEPTEMBER 1995 The unit started the reporting period at 100 percent Core Thermal Power (CTP), where it was essentially maintained until September 17,1995, when reactor power was reduced to perform a thermal backwash of the main condenser. While attempting to align the Salt Service Water System sluice gates for the backwash, the rear sluice gate failed to function properly and the backwash was cancelled. Reactor power was increased and the unit attained 100 percent CTP on September 18,1995 where it was maintained until September 23, 1995. A power reduction to approximately 50 percent CTP was initiated on September 23,1995 to facilitate j a thermal backwash. Following a successful backwash reactor power was again returned to 100 percent 4

CTP where it was maintained for the remainder of the reporting period.

SAFETY RELIEF VALVE CHALLENGES i

MONTH OF SEPTEMBER 1995 Requirement: NUREG-0737 T.A.P. II.K.3.3 r

There were no safety relief valve challenges during the reporting period.

An SRV challenge is defined as anytime an SRV has received a signal to operate via reactor pressure signal (ADS) or control switch (manual). Reference BECo Ltr. #81-01 dated January 5,1981.

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l REFUELING INFORMATION l l

Th] following refueling information is included in the Monthly Report as requested in an NRC letter to BECo, l d;ted January 18, J978: l For your convenience, the information supplied has been enumerated so that each number corresponds to )

equivalent notation utilized in the request.

1. The name of this facility is Pilgrim Nuclear Power Station, Docket Number 50-293.

2. Scheduled date for next refueling shutdown: March 29,1997.

3. Scheduled date for restart following next refueling: May 12,1997.

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4. Due to their similarity, requests 4,5, & 6 are responded to collectively under #6, '

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5. See #6.

6. The new fuel loaded during the 1995 refueling outage (RFO-10) is of a different design than that ,

loaded in the previous refueling outage and consists of 136 new fuel assemblies.

7. -(a) There are 580 fuel assemblies in the core.

(b) There are 1765 fuel assemblies in the spent fuel pool.

8. (a) The station is presently licensed to store 3859 spent fuel assemblies. The spent fuel storage capacity is 2891 fuel assemblies. However,23 spent fuellocations cannot be used due to '

I refuel bridge limitations.

(b) The planned spent fuel storage capacity is 3859 fuel assemblies.

9. With present spent fuel in storage, the spent fuel pool now has the capacity to accommodate an additional 1103 fuel assemblies, f

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PILGRIM NUCLEAR POWER STATION MAJOR SAFETY RELATED MAINTENANCE DOCKET NO: 50-293 NAME: Pilarim i DATE: 10/12/95 COMPLETED BY: W.J. Munro TELEPHONE: (508) 830-8474 REPORT MONTH: September 1995 SYSTEM COMPONENT MALFUNCTION CAUSE MAINTENANCE CORRECTIVE ASSOCIATED ACTION TO LER PREVENT RECURRENCE No major safety related maintenance was completed during this reporting period.

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO: 50-293 NAME- - Pilorim i ,_

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DATE- 10/12/os- = .

COMPLETED BY: W.J. Munro TELEPHONEi(508) 830-8474 '.. _

• REPORT MONTH: September 1995 METHOD OF LICENSE SYSTEM- COMPONENT.. CAUSE & CORRECTIVE -

TYPE DURATION REASON SHUTTING DOWN EVENT CODE CODE ACTION TO PREVENT ..

NO.- DATE 1 (HOURS) '2 REACTOR REPORT ~ 4- 5 RECURRENCE-07-. 09/17/95 S 0.0 H N/A N/A N/A N/A Power reduction to facilitate -

a thermal backwash of the ,

main condenser. .The backwash was cancelled due to equipment problems. [

Ther@ were no unit shutdowns er significant power reductions during the reporting period.

1 2 3 4&5

~ F-F@rced A-Equip Failure 1-Manual- Exhibit F & H S-Sched B-Main or Test 2-Manual Scram Instructions for C-Refueling 3-Auto Scram Preparations of D-Regulatory Restriction 4-Continued Data Entry Sheet

~ E-Operator Training 5-Reduced Load Licensee Event Report

& License Examination 9-Other (LER) File (NUREG-1022)

F-Admin >

G-Operator Error H-Other l

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