BECO-89-138, Monthly Operating Rept for Aug 1989 for Pilgrim Nuclear Power Station

Monthly Operating Rept for Aug 1989 for Pilgrim Nuclear Power Station

ML20247Q274
Person / Time
Site:	Pilgrim
Issue date:	08/31/1989
From:	Highfill K, Munro W BOSTON EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BECO-89-138, NUDOCS 8909280157
Download: ML20247Q274 (7)

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Pilgrim Nuclear Power Station

_ . Rocky Hill Road Plymouth, Massachusetts 02360 K. L. Highfill Station Director September 14, 1989 BECo Ltr. #89-138 U.S. Nuclear Regulatory Commission

. Attention: Document Control Desk Hashington, DC 20555 License No. DPR-35 Docket No. 50-293

Subject:

August 1989 Monthly Report

Dear Sir:

In accordance with PNPS Technical Specification 6.9.A.2, a copy of the

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Operational Status Summary.for Pilgrim Nuclear Power Station is attached for your information and planning. Should you have any questions concerning this report please contact me directly.

K.L. High m [i WJH:bal Attachment cc: Regional Administrator, Region i U.S. Nuclear Regulatory Commission 475 Allendale Rd.

King of Prussia, PA 19406 Senior Resident Inspector l

8909280157 890831 93 DR ADDC:K 0500 1

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-293 UNIT Pilarim 1 DATE September 14. 1989 COMPLETED BY W. Munro TELEPHONE (508) 747-8474 MONTH Auaust 1989 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 317 17 227 2 320 18 215 3 321 19 376 4 325 20 369 5 325 21 478 6 325 22 502 7 324 23 505 8 322 24 -

477 9 320 25 428 10 321 26 501 11 321 27 502 12 323 28 501 13 322 29 453 14 321 30 379 15 314 31 0 16 323 This format lists the average daily unit power level in MWe-Net for each day in the reporting month, computed to the nearest whole megawatt.  !

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.; . OPERATING DATA REPORT.

. DOCKET NO. '50-293 h

DATE sentember 14, 1989 l COMPLETED BY W. Munro TELEPHONE (508) 747-8474

. OPERATING STATUS Notes

l. Unit Name Pilorim 1

2. Reporting Period Aucust 1989 3 .- Licensed Thermal' Power (MHt) 1998

4. ^ Nameplate Rating (Gross MHe) 678

-5. Design Electrical Rating (Net MWe) 655

6. : Maximum Dependable Capacity (Gross MHe) 690

7. Maximum Dependable Capacity (Net MHe) 670

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

None

9. Power Level To Which Restricted, If Any (Net MHe) 50% Core Thermal Power - 8/1 - 8/18/89 75% Core Thermal Power - 8/18 - 8/31/89

10. Reasons For Restrictions, If Any Begulatorv Restriction. Confirmatory _v Action Letter 86-10. Power Ascension Phase.

This Month Yr-to-Date Cumulative

11. Hours In Reporting Period 744.0 5831.0 146639.0

12. Number Of Hours Reactor Has Critical 715.3 3505.3 83296.7

13. Reactor Reserve Shutdown Hours 0.0 -0.0 0.0

14. Hours Generator On-Line 715.3 2872.2 80101.5

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

.16.' Gross Thermal Energy Generated (MHH) . . 810960.0 2106408.0 137106288.0 17' Gross Electrical Energy Generated (MHH)

. 265450J 639460.0 46084064.0

18. Net Electrical Energy Generated (MHH) 253313.0 601311.0 44276740.0 19.. Unit Service Factor 96.1 49.3 54.6

20. Unit Availability Factor 96.1 49.3 54.6 L 21. Unit Capacity Factor (Using MDC Net) 50.8 15.4 45.1 22.' Unit Capacity Factor (Using DER Net) 52.0 15.7 46.1

23. Unit Forced Outage Rate 3.9 31.0 13.0

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

Maintenance outace. October 14. 1989 for a duration of 18 - 21 days

25. If Shut Down At End Of Report Period, Estimated Date of Startup -

9/6/89 .

26. Units In Test Status (Prior to Commercial Operation): N/A a Forecast Achieved

. INITIAL CRITICALITY I INITIAL ELECTRICITY COMMERCIAL OPERATION (9/77)

- , BOSTON EDISON. COMPANY

,, .. PILGRIM NUCLEAR POWER STATION DOCKET NO. 50-293 Operational Summarv for Auoust 1989 The unit remained on line at approximately 50 percent rated thermal power, in-accordance with the approved Power Ascension Plan, until August 17, 1989 when power was reduced to approximately 30 percent to clean the water boxes and for condenser backwash. The unit was returned to 50 percent power on August 19, 1989. By August 21, 1989 the unit was operating at 75 percent power, in accordance with NRC authorization received on August 18, 1989, and remained at that level until 1916 hours0.0222 days <br />0.532 hours <br />0.00317 weeks <br />7.29038e-4 months <br /> on August 30, 1989 when the reactor automatically scrammed on high pressure. This event resulted from the effects of a failed main generator voltage regulator potential transformer, and the subsequent malfunction of the main generator voltage balance relay. The unit remained in cold shutdown for the remainder of the reporting period for maintenance.

Safety Relief Valve Challenges Month of August 1989 Requirement: NUREG-0737 T.A.P. II.K.3.3 There were no safety relief valve challenges during the month.

An SRV challenge is defined as anytime an SRV has received a signal to operate via reactor pressure, auto signal (ADS) or control switch (manual). Ref. BECo ltr. #81-01 dated 01/05/81.

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SL,3 [,. REFUELING INFORMATION T'he following refueling information'is included-in the Monthly Report as requested in an NRC letter to BECo,' dated January-18, 1978:

For your convenience, th'e' 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 293.

2. Scheduled date for next Refueling Shutdown: Fifst Quarter 1991.

3. Scheduled date for restart following refueling: Second Quarter 1991 Due to their similarity, requests 4, 5, & 6 are responded to collectively

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4.

under #6.

5. See #6.

6. The new fuel loaded during the 1986/87 refueling outage was.of the same-design as loaded in the previous outage, and consisted of 192 assemblies.

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

(b) There are'1320 fuel assemblies in the spent fuel pool.

8. (a) The station is presently licensed to store 2320 spent fuel assemblies. The actual usable spent fuel storage capacity is 2320 fuel assemblies.

(b) -The planned spent fuel storage capacity is 2320 fuel assemblies.

9. With present spent fuel in storage, the spent fuel pool now has'the capacity to accommodate an additional 1000 fuel assemblies..

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