ML20138B337

Monthly Operating Rept for Sept 1985

ML20138B337
Person / Time
Site:	Millstone
Issue date:	09/30/1985
From:	Gibson J, Scace S NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
MP-8256, NUDOCS 8512120270
Download: ML20138B337 (9)

Text

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OPERATING DATA REPORT DOCKET NO. 50-336 DATE 10/9/85 COMPLETED BY J. Gibson TELEPHONE (203) 447-1791 Extension 4431 OPERATING' STATUS 1.

Unit Name: Millstone Unit 2 Notes: Item 21 and 22 are 2.

Reporting Period: September 1985 weighted averages Unit 3.

Licensed Thermal Power (MWt):

2700 operated at 2560 MW thermal 4.

Nameplate Rating (Gross MWe):

909 prior to its uprating to the 5.

Design Electrical Rating (Net MWe):

870 current 2700 MW thermal 6.

Maximum Dependable Capacity (Gross MWe):

888.75

• power level.

7.

Maximum Dependable Capacity (Net MWe):

857.25

• 8.

If Changes Occur in Capacity Ratings (Items Number 3 Through 7)

Since Last-Report, Give Reasons:

• The change in capacity ratings is the result of secondary side efficiency work performed at the end of the previous cycle outage.

9.

Power Level To Which Restricted, If Any (Net MWe):

N/A 10.

Reasons For Restrictions, If Any:

N/A This Month Yr.-to-Date Cumulative 11.

Hours In Reporting Period 720 6551 85607

12. Number Of Hours Reactor Was Critical 637.1 3156.4 61233.4 13.

Reactor Reserve Shutdown Hours 0

0 2205.5

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14. Hours Generator On-Line 635.1 3035.8 57428.8

15. Unit Reserve Shutdown Hours 0

0 468.2

16. Gross Thermal Energy Generated (MWH) 1710661 7817030 145501487

17. Gross Elec. Energy Generated (MWH) 559300 2546300 47227979

18. Net Electrical Energy Generated (MWH) 538330 2430587 45254110

19. Unit Service Factor 88.2 46.3 67.31

20. Unit Availability Factor 88.2 46.3 67.6

21. Unit Capacity Factor (Using MDC Net) 87.2 49.688 63.2

22. Unit Capacity Factor (Using DER Net) 85.9 48.1**

62.3

23. Unit Forced Outage ~ Rate 11.8 6.2 16.6

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

N/A

' 25.

If Shut Down At End Of Report Period, Estimated Date of Startup: N/A 26.

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

Forecast Achieved INITIAL CRITICALITY N/A N/A INITIAL ELECTRICITY N/A N/A COMERCIAL OPERATION N/A N/A

• • Items 21 and.22 year-to-date are weighted averages as a result of the capacity rating change.

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AVERAGE ~ DAILY UNIT POWER LEVEL DOCKET NO. 50-336 UNIT Millstone Unit 2 DATE 10/9/85 COMPLETED BY J. Gibson l

TELEPHONE (203) 447-1791 Extension 4431 MONTH September 1985 t

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 855 17 853 l

2 854 18 853 3

853 19 854 4

851 20 854 5

850 21 855 6

850 22 856 7

837 23 853 8

847 24 854 9

849 25 854 10 850 26 855 11 852 27 358 12 852 28 0

l 13 853 29 0

14 854

'30

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0 15 853 31 3

16 851 INSTRUCTIONS On this format, list the average daily unit power level in MWe-Net for each day in the reporting montn.

Compute to the nearest whole megawatt.

DOCKET NO. 50-336 UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME Millstone Unit 2 DATE 10/9/85 COMPLETED BY J. Gibson i

REPORT MONTH September 1985 TELEPHONE (203) 447-1791 Extension 4431 l

2 No.

Date Type Duration Reason Method of Licensee Systeg Compogent Cause & Corrective (Hours)

Shutting Event Code Code Action to 3

Down Reactor Report #

Prevent Recurrence 8

850927 F

84.9 H

1 Under N/A N/A Unit was shutdown Evaluation prior to hurricane

" Gloria". While shutdown a ground fault problem in 'C' reactor coolant pump motor was found.

Cause of ground fault is being investigated.

1 2

3 4

F:

Forced Reason:

Method:

Exhibit G - Instructions S:

Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensa C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Restriction 4-Continued from (NUREG-0161)

E-Operator Training & License Examination previous month F-Administrative 5-Power Reduction 5 G-Operational Error (Explain)

(Duration = 0)

Exihibit 1 - Same Source H-Other (Explain) 9-Other (Explain)

Docket No. 50-336 i

Date 10/9/85 l

Unit Name Millstone Unit 2 l

Completed By G. Neron Telephone (203) 447-1791 Extension 4417 CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT REPORT MONTH September 1985 DATE SYSTEM COMPONENT MAINTENANCE ACTION i

l 9/17/85 Reactor Coolant Reactor Internals - ICI Plate Realigned ICI Guide Tube Clusters.

and Vessel 8/6/85 CVCS "B" Charging Pump Installed new packing.

8/13/85 CVCS "C" Charging Pump Replaced lube oil filter and discharge gauge on lube cil system.

8/27/85 CVCS "C" Charging Pump Installed new pump block and tightened #2 shaft.

8/19/85 CVCS "C" Charging Pump Plunler Replaced valve.

Flush Pump Assembly 7/26/85 CVCS "A" Charging Pump Machined seat and installed new disc.

Discharge Relief Valve 8/7/85 Boric Acid Valve 2-CH-151 and Replaced circuit breaker #7.

Adjacent Piping Heat Trace Component 7/25/85 Boric Acid "C" Charging Pump Suction Replaced lug on lead in TB 6739.

Line Heat Trace Comporent

1 Docket No. 50-336~

Date 10/9/85 Unit Name Millstone Unit 2 Completed By G. Neron Telephone (203) 447-1791 Extension 4417 CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT REPORT MONTH Septemt er 1985 DATE SYSTEM COMPONENT MAINTENANCE ACTION 6/5/85 Boric Acid "B" Boric Acid Storage Lapped valve and installed new Tank Outlet Relief Valve gaskets. Wedged valve into system.

3/21/85 Boric Acid "B" Boric Acid Tank Repaired valve seat; repacked Outlet Drain Valve valve with 6 rings; replaced bolts and nuts on packing gland; renewed bonnet gasket.

8/9/85 CTMT Spray "B" Containment Spray Rebuilt pump; replaced pump bearings, Pump inboard and outboard seals and mechanical seal; aligned pump.

5/14/85 Shutdown Cooling Shutdown Cooling Suction Changed body to bonnet gasket.

Header Manual Isolation Valve 7/26/85 Service Water "A" Service Water Pump Rer.ov s', internals, hydrolazed.

Discharge Strainer 8/30/85 Service Water "A" Service Water Pump Replaced septums.

Discharge Strainer 9/3/85 Service Water "B" Service Water Pump Cleaned strainer.

Discharge Strainer Assy I

l Docket No. 50-336 Date 10/9/85 Unit Name Millstone Unit R Completed By G. Neron l

Telephone (203) 447-1791 l

Extension 4417 l

CORRECTIVE MAINTENANCE SUPMARY FOR SAFETY RELATED EOUIPMENT REPORT MONTH September 1985 4

DATE SYSTEM COMFUNENT MAINTENANCE ACTION 7/27/85 Service Water "8" Service Water Pump Replaced strainer tubes.

Discharge Strainer 7/26/85 Service Water "C" Service Water Pump Opened strainer and cleaned internals.

Discharge Strainer 8/20/85 Service Water "C" Service Water Pump Cleaned strainer.

Discharge Strainer 8/31/85 Service Water "C" Service Water Pump Replaced screens in st.ainer.

Discharge Strainer 4/13/85 Service Water "8" Service Water Cleaned, lapped valve wedge, Strainer Drain Stop blued and checked.

Valve 5/21/85 RBCCW "A" RBCCW Heat Exchanger Hydrolazed clean and plugged 23 tubes.

4/2/85 Station Electric 4.16 Breaker - PSB Service Repl;ced TUF-LOC bushings with Service - 4.16 KV Water Pump 24El-2 Al-Bronze and cleaned ML-13.

9/23/85 120 V Vital Reg.

Inverter #4 Adjusted R-5 on oscillator board Instrument AC to bring inverter in synch.

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Docket No. 50-336~

Date 10/9/85 Unit Name Millstone Unit 2.

Completed By G. Neron Telephone (203) 447-1791 Extension 4417 CORRECTIVE MAINTENANCE SUP94ARY FOR SAFETY RELATED EQUIPMENT REPORT MONTH September 1985 DATE SYSTEM COMPONENT MAINTENANCE ACTION

[

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'9/5/85 125 Volt DC "A" Battery Charger to Replaced relay.

Battery Bus'201A 7/16/85 Diesel Generator "B" D/G DC Air Compressor Replaced hydraulic unloader valve.

7/18/85 Reactor Coolant Pressurizer System Corrected wiring mistake in spray valve

-and vessel control system.

9/9/85 Control Room AC Control Room AC Chlorine Replace facility Z2 detector and Detector Switch Contact matched pre-amp.

Calibrated and functionally checked.

9/10/85 ESAS CTM Radiation Purge Replaced bistable module BA 304 Isolation Bistable and calibrated.

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Docket No. 50-336 Date: in/g/ns Completed By: J.~Gibson Telephone: (203) 447-1791 Extension 4431 REFUELING INFORMATION REQUEST 1.

Name of facility: Millstone 2 2.

Scheduled date for next refueling shutdown:

August 1986 3.

Schedule date for restart following refueling: October 1986 4.

Will re' fueling or resumption of operation thereafter require a technical specification change or other license amendment?

Unknown at this time.

5.

Scheduled date(s) for submitting licensing action and supporting information:

A.

Technical support information for reracking the spent fuel pool was submitted on July 24, 1985 to support a proposed license ammendment.

6.

Important licensing considerations associated with refueling, e.g.,

new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, new operating procedures:

None 7.

The number of fuel assemblies (a) in the core and (b) in the spent fuel storage pool:

(a) In Core: 217 (b) 449 8.

The present licensed spent fuel pool storage capacity and the size of any increase in licensed storage capacity that has been requested or is planned, in number of fuel assemblies:

Currently 667 Plans are being formulated to rerack the spent fuel pool beginning in December 1985, to increase the storage capacity to 1106 fuel assemblies.

9.

The projected date of the last refueling that can be discharged to the spent fuel pool assuming the present licensed capacity:

1985, Spent Fuel Pool, Full Core off load capacity is reached.

1987, Core Full, Spent Fuel Pool contains 648 bundles.

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General Offices

• Selden Street, Berlin, Connecticut w cc=cra, uo v e.o-a **"

P.O. BOX 270 C, 7 [ * '[ " ""

HARTFORD. CONNECTICUT 06141-0270 (203) 666-69M 2 g,ZCa"2",*"

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October 15, 1985 MP-8256 Director, Office of Resource Management U. S. Nuclear Regulatory Commission Washington, D. C. 20555

Reference:

Facility Operating License No. DPR-65 Docket No. 50-336

Dear Sir:

This letter is forwarded to provide the report of operating and shutdown experience relating to Millstone Unit 2 Monthly Operating Report 85-09 in accordance with Appendix A Technical Specifications, Section 6.9.1.3.

One additional copy of the report is enclosed.

Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY FOR:

W. D. Romberg Station Superintendent Millstone Nuclear Power Station (AU BY:

S.

cace Unit 2 Superintendent Millstone Nuclear Power Station WDR/JG:ck cc:

Director, Office of Inspection and Enforcement, Region I Director, Office of Inspection and Enforcement, Washington, D. C. (10)

U. S. Nuclear Regulatory Commission, c/o Document Management Branch, Washington, D.C. 20555

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