ML20133J573

Monthly Operating Rept for Sept 1985

ML20133J573
Person / Time
Site:	Pilgrim
Issue date:	09/30/1985
From:	Hamilton P, Harrington W BOSTON EDISON CO.
To:	NRC OFFICE OF ADMINISTRATION (ADM), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
85-184, NUDOCS 8510180523
Download: ML20133J573 (8)

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OPERATING DATA REPORT l DOCKET NO. 50-293 DATE October 11. 1985 COMPLETED BY P. Hamilton TELEPHONE (6171746-7900 OPERATING STATUS

1. Unit Name Pilgrim 1 Notes

2. Reporting Period September 1985

3. Licensed Thermal Power (MWt) 1998

4. Nameplate Rating (Gross MWe) 678

5. Design Electrical Rating (Not MWe) 655

6. Maximum Dependable Capacity (Gross MWe) 690

7. Maximum Dependable Capacity (Net P8de) 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 MWe) None

10. Reasons For Restrictions, If Any N/A This Month Yr-to-Date Cumulative

11. Hours In Reporting Period 720.0 6551.0 112295.0

12. Number Of Hours Reactor Was Critical 592.5 5950.0 75866.6

13. Reactor Reserve Shutdown Hours 0.0 0.0 0.0

14. Hours Generator On-Line 561.5 5805.8 -73374.3

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 1051080.0 10751760.0 127703568.0

17. Gross Electrical Energy Generated (MWH) 357980.0 3695490.0 42927704.0

18. Net Electrical Energy Generated (MWH) 344490.0 _3555815.0 41252742.0

19. Unit Service Factor 78.0 88.6 65.3

20. Unit Availability Factor 78.0 88.6 65.3

21. Unit Capacity Factor (Using MDC Net) 71.4 81.0 54.8

22. Unit Capacity Factor (Using DER Net) 73.0 82.9 56.1

23. Unit Forced Outage Rate 5.3 6.5 9.2

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

None

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

26. Units In Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY CortiERCIAL OPERATION (9/77)

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-293 UNIT Pilgrim 1 DATE October 11. 1985 COMPLETED BY P. Hamilton TELEPHONE (617)746-7900 MONTH September 1985 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 39. 17 661.

2 0. 18 661.

3 0. 19 660.

4 0. 20 659.

5 O. 21 655.

6 0. 22 653, 7 134. 23 663.

8 585. 24 662.

9 613, 25 656, 10 653. 26 659.

11 629. 27 440, 12 654, 28 224.

13 643, 29 572.

14 658, 30 614.

15 659, 31 -

16 649.

INSTRUCTIONS On this format, list the average daily unit power level in NWe-Net for each day in the reporting month. Compute to the nearest whole megawatt.

REFUELING INFORMATION The following refueling information is included in the Monthly Report as requested in an NRC letter to BECo, dated January 18, 1978:

For your convenience, the information supplied har 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: September 1986

3. Scheduled date for restart following refueling: November 1986

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

5. See #6,

6. The new fuel, which was loaded during the 1983-84 refueling outage, is of the same P8x8R design, as loaded the previous outage and consists of 160 P8DRB282 assemblies. In addition, 32 GE68-P8DRB282 assemblies were also loaded.

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

(b) There are 1,128 fuel assemblies in the spent fuel pool.

8. (a) The station is presently licensed to store 2320 spent fuel assemblies The actual spent fuel storage capacity is 1770 fuel assemblies at present.

(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 u capacity to accommodate an additional 642 fuel assemblies, t _ _ __ ___ ____ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ . _ _ _ _ _ _ _ . _ _ _ _ _ . . _ _ _ _ _ _ . - - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

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

Operational Summary for September 1985 l On the first, while at reduced power to perform a condenser backwash, the reactor scrammed due to load reject at 0521 hours0.00603 days <br />0.145 hours <br />8.614418e-4 weeks <br />1.982405e-4 months <br />. The load reject was the result of arcing in the switchyard caused by salt build-up on the insulators from a heavy ocean storm.

While shutdown, the switchyard was washed and a drywell entry was made to replace the "B" recirculation pump mechanical seal which had been leaking. The seal replacement was completed and plant startup commenced on the fourth. While testing the "B" recirculation pump on the 5th, the new seal failed and the reactor was again shut down. Seal repairs were completed on the 7th and the unit was synchronized to the grid on the 7th at approximately 1243 hours0.0144 days <br />0.345 hours <br />0.00206 weeks <br />4.729615e-4 months <br />.

On the eighth, a control rod pattern change was completed and power was increased to an average daily level of 87%. From the ninth through the twenty-sixth, the unit operated at an average daily power level of 92%--99%. During this time frame, slight power reductions were required at low tide in order to maintain adequate condenser vacuum. Slight power reductions also were required on the eleventh in response to potential problem with HPCI system and on the twentieth when the "A" Emergency Diesel and the LPCI System were simultaneously out of service for a short period of time.

On the twenty-seventh, power was reduced to approximately 20% in response to Hurricane Gloria. Highest winds recorded during the storm were 75 mph as detected on the 220' elevation of the meteorological tower. No storm damage to the Station was identified.

The unit was removed from the grid on the twenty-eighth at approximately 0115 hours0.00133 days <br />0.0319 hours <br />1.901455e-4 weeks <br />4.37575e-5 months <br /> to wash the switchyard. Normally, the switchyard is washed live, but, due to low demand for power as the result of downed power lines, the generator was taken off-line. The generator was synchronized to the grid approximately 7.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> later that day. Power was increased to an average daily level of 92% by the end of the month.

Items of Interest The annual Emergency Drill was successfully completed on the fif th.

Safety Relief Valve Challenges Month of September 1985 Requirement: NUREG-0737 T.A.P. II.K 3.3 There were no safety relief valvo challenges during the month.

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-293 UNIT NAME Pilgrim 1 DATE October 11, 1985 COMPLETED BY P. Hamilton TELEPHONE (617) 746-7900 REPORT MONTH September 1985 METHOD OF LICENSE CAUSE & CORRECTIVE DURATION SHUTTING EVENT SYSTEM COMPONENT ACTION TO NO. DATE TYPEI (HOURS) REASON 2 DOWN REACTOR 3 REPORT # CODE 4 CODES PREVENT RECURRENCE 18 9/1/85 F 151.0 H 3 85-025 ZZ ZZ Scram on load reject due to salt on insulators from storm.

18 9/2/85 S 127.0 H 4 N/R ZZ ZZ While shutdown, repaired (Continued) B recirc. pump seal as planned.

19 9/28/85 F 7.5 H 1 N/R ZZ ZZ Took unit off-line due to Hurricane Gloria.

I 2 2 3 4&5 F-Forced A-Equip Failure F-Admin 1-Manual Exhibit F & H S-Sched B-Maint or Test G-Oper Error 2-Manual Scram Instructions for C-Refueling H-Other 3-Auto Scram Preparation of D-Regulatory Restriction 4-Continued Data Entry Sheet E-Operator Traininr3 5-Reduced Load Licensee Event Report

& License Examination 9-Other (LER) File (NUREG-lO22)

Month __ September 1985 PILGRIM NUCLEAR POWER STATION MAJOR SAFETY RELATED MAIMTENANCE CORRECTIVE ACTION SYSTEM COMPONENT MALFUNCTION CAUSE MAINTENANCE TO PREVENT ASSOCIATED RECURRENCE LER Containment AO-5033 No Valve Limit Switch Set limits. Routine N/R Atmos. Indication Maintenance Control Instr. Made Switch Broken Key Wear Removed key from Routine N/R Control lock. Maintenance Electrical "A" Battery 1301-32 Steam Leak Dried out switch / Routine N/R Power Ground Moisture- repaired steam leak. Maintenance Ground Aux. "A" Diesel Fuel Booster Wear Replaced connector. Routine N/R Electrical Generator Pump Broken Maintenance Belt RCIC P221 Condensate Will not Contactor Disassembled, Routine N/R Pump operate. Mechanism cleaned, and Maintenance Binding lubricated.

LPCI MO-lO01-298 Would not Faulty Replaced block Routine LER 85-027 operate. Heaters and heaters. Maintenance to be issued.

Neutron IRM B Erratic Loose Re-tightened Routine N/R Monitoring Indication Connector connector Maintenance Under Vessel and re-taped.

Main Steam Acoustic In Alarm - Loose Tightened Routine N/R Monitor No other Connection connection. Maintenance S/RV 38 indication of open valve.

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Month September 1985 PILGRIM NUCLEAR POWER STATION MAJOR SAFETY RELATED MAINTENANCE CORRECTIVE ACTION SYSTEM COMPONENT MALFUNCTION .CAUSE MAINTENANCE TO PREVENT ASSOCIATED RECURRENCE LER Secondary Damper AO/N-95 Gears Normal Re-aligned. Secondary N/R Containment Misaligned Wear Containment dampers to be replaced RFO #7.

Secondary Damper AO/N-90 No valve Pinched Re-positioned Routine N/R Containment indication on Diaphragm diaphragm. Maintenance start of SBGT.

Structural Outer Truck Leaking Normal Replaced door seal. Routine N/R Lock Door Seal Door Seal Wear Maintenance HPCI HPCI Exhaust Linear Original Removed indication. Routine N/R Line indication r .-ication Maintenance found on exhaust line to torus.

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BOSTON EDISON COMPANY B00 B vtaTON STRatt BOSTON,MA mAcHustTTs 02199 WILLIAM D. HARRINGTON na'ea v*u a.www October 11, 1985

""*'"" BECo Ltr. #85-184 Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Attn: Document Control Desk License No. DPR-35 Docket No. 50-293_

Subject:

September 1985 Monthly Report

Dear Sir:

In accordance with PNPS Technical Specification 6.9.A.2, a copy of the Operational Status Summary for Pilgrim Nuclear Power Station is attached for your information and planning.

Respectfully submitted, fg W. D. Harrington PJH: caw Attachment ec: Regional Administrator, Region I U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406 h

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