ML20205D564

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Monthly Operating Rept for May 1986
ML20205D564
Person / Time
Site: Millstone Dominion icon.png
Issue date: 05/31/1986
From: Neron G, Romberg W
NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES
To:
NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
MP-9167, NUDOCS 8608180086
Download: ML20205D564 (9)


Text

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OPERATING DATA REPORT DOCKET NO.

50-336 DATE 6/10/86 COMPLETED BY G. Neron TELEPHONE (203) 447-1791 Ext. 4417 OPERATING STATUS 1.

Unit Name:

Millstone Unit 2 Notes Items 21 and 22 2.

Reporting Period:

May 1986 cumulative are weighted 3.

Licensed Thermal Power (MWt):

2700 averages.

Unit operated 4.

Nameplate Rating (Gross MWe):

909 at 2560 MW Thermal prior 5.

Design Electrical Rating (Net MWe):

870 to its uprating to the 6.

Maximum Dependable Capacity (Gross MWe):

888.75 current 2700 MW Thermal 7.

Maximum Dependable Capacity.(Net MWe):

857.25 power level.

8.

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

Since Last Report, Give Reasons:

N/A 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 744 3624 91440 12.

Number Of Hours Reactor Was Critical 744 3624 66161.7 13.

Reactor Reserve Shutdown Hours 0

0 2205.5 14.

Hours Generator On-Line 673.5 3553.5 62271.2 15.

Unit Reserve Shutdown Hours 0

0 468.2 16.

Gross Thermal Energy Generated (MWH) 1809751 9548923 157652725

17. Gross Elec. Energy Generated (MWH) 583300 3090800 51432279 18.

Net Electrical Energy Generated (MWH) 558641 297719A 49298413 19.

Unit Service Factor 90.5 98.1 68.1 i

20.

Unit Availability Factor 90.5 98.1 68.6 21.

Unit Capacity Factor (Using MDC Net) 87.6 95.8 64.0 l

22.

Unit Capacity Factor (Using DER Net) 86.3 94.4 62.9 l

23.

Unit Forced Outage Rate 0.0 0.0 16.6 l

24.

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

l Scheduled for refueling in September 1986.

Duration = 14 weeks 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 COMMERCIAL OPERATION N/A N/A 1

8608100086 860531 PDR ADOCK 05000336 pd R

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AVERAGE DAILY UNIT POWER LEVEL l

DOCKET NO.

50-336 l

UNIT Millstone 2 i

DATE 6/10/86 COMPLETED BY G.' Neron TELEPHONE (203) 447-1791 Ext. 4417 MONTH May 1986 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 845 17 838 2

845 18 837 3

846 19 837 4

845 20 838 5

845 21 839 6

845 22 838 7

845 23 838 8

845 24 838 9

846 25 837 10 846 26 838 11 845 27 835 12 845 28 758 13 844 29 0

14 842 30 0

15 840 31 0

16 839 INSTRUCTIONS On this format, list the average daily unit power level in MWe-Net for each day in the reporting month.

Compute to the nearest whole megawatt.

DOCKET NO.

50-336 UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME Millstone 2 DATE 6/10/86 COMPLETED BY G. Neron REPORT MONTH May 1986 TELEPl10NE (203) 447-1791 Ext. 4417 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 1

5/28/86 S

70.5 B

9 N/A N/A N/A Unit was shutdown due to Turbine Vendor Recommendation to perform Turbine Inspections.

Reactor remained critical during outage period.

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 Licensee C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Restriction 4-Continued from (NURfG-0161)

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

(Duration = 0)

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

Docket No.

50-336 Date 6/10/86 Unit Name Millstone 2 Completed By G. Neron Telephone (203) 447-1791 Ext. 4417 CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT REPORT MONTH May 1986 DATE SYSTEM COMPONENT MAINTENANCE ACTION 5-1-86 Chemical and Volume "C" Charging Pump Replaced leaking oil line.

Control System 5-7-86 Chemical and Volume "C" Charging Pump Discharge Replaced disk and machined valve seat.

Control System Relief Valve 5-14-86 Boric Acid "A" Boric Acid Pump Assy Adjusted pump oiler.

5-14-86 Boric Acid "B" Boric Acid Storage Tank Installed new flex gasket (150#),

Gravity Feed Header Relief heat transfer cement and temporary Valve lagging.

5-14-86 Boric Acid "A" Boric Acid Pump Dis-Cleaned / removed boric acid from charge PT-206 Instrument piping.

Stop Valve 5-15-86 Spent Fuel Pool "A" SFP Cooling Pump Remove piece of wood four4d against Cooling and impeller.

Purification 5-15-86 Non-Radwaste "B" DC Battery Room Made and installed new dampers.

Ventilation Exhaust Fan Assy

Docket No.

50-336 Date 6/10/86 Unit Name Millstone 2 l

Completed By G. Neron Telephone (203) 447-1791

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Ext. 4417 CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT REPORT MONTH May 1986 DATE SYSTEM COMPONENT MAINTENANCE ACTION 5-15-86 Vital Switchgear "A" West 480V Unit Load Installed one plug in lower "A" Emergency Cooling Center Room Cooling Coil cooler tubesheet.

5-30-86 Main Steam

  1. 2 S/G Blowdown Sample Made weld repair to valve Control Valve Assy bonnet / body.

5-20-86 Service Water Vital Switchgear AC Placed temporary patch over leak.

Cooling Coils to Quarry Discharge Valve 5-6-86 Service Water "A" Header Isolation Stop Rebuilt two bushings, replaced snap Valve ring, cleaned and repacked with grease.

5-20-86 Service Water Service Water Booster Removed beam and rusted bolts, welded Pumps Supply Pipe (Hanger) beam back in place and installed 7 new

)

Hilti bolts and torqued.

Renewed grout under baseplate of beam.

5-8-86 Reactor Building RBCCW Header "B" to Aerated Fabricated and installed spool piece.

Closed Cooling Waste Evap Inlet Valve Assy Water

Docket No.

50-336 Date.

6/10/86 Unit Name Millstone 2 Completed By G. Neron

. Telephone- (203) 447-1791 Ext. 4417 CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT REPORT MONTH May 1986 DATE SYSTEM COMPONENT MAINTENANCE ACTION t

5-21-86 Fire Protection and Fire Zone - Aux Bldg.

"B" Performed temporary and then Deluge Diesel Generator Room -

permanent fire penetration Elev. 14'-6" sealant repairs on six conduit ends.

5-6-86 120V Vital Regulated Inverter.#1 Replaced capacitor.

Instrument AC 5-6-86 Diesel Generator "A" Emergency Diesel Repaired oil leaks.

5-20-86 Process and Area CTMT Atmos Gaseous Replaced detector assembly and

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Radiction Monitoring Radiation Indicating retested.

XMTR CRM i

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Docket No.

50-336 Date:

6/10/86 Cempleted By:

G. Neron Telephone:

(203) 447-1791 Ext. 4417 REFUELING INFORMATION REQUEST 1.

Name of facility:

Millstone ~2 2.

Scheduled date for next refueling shutdown:

September 20, 1986 3.

. Schedule date for. restart following refueling: December 1986 4.

Will refueling 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:

The licensing package to support start-up following refueling will be submitted on or before September 19, 1986.

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 1112 The 1112 available locations reflects the re-racked Spent Fuel Poo.

The re-racking of the Unit 2 Spent Fuel Pool has been completed.

9.

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

1994, Spent Fuel Pool, Full Core off load capacity is ruched.

1998, Core Full, Spent Fuel Pool Full.

These numbers are based on the recently re-racked Spent Fuel Pool.

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June 11, 1986 MP-9167 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 86-05 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 Do W. D. Rom erg Station Superintendent Millstone Nuclear Powei Station WDR/GN:jlc cc:

Regional Administrator, 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 d

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