ML20215L744

Monthly Operating Rept for Apr 1987

ML20215L744
Person / Time
Site:	Millstone
Issue date:	04/30/1987
From:	Gibson J, Scace S NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
MP-10354, NUDOCS 8705120354
Download: ML20215L744 (5)

Text

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OPERATING DATA REPORT DOCKET NO. 50-336 DATE 5/8/87 COMPLETED BY J. Gibson TELEPHONE (203) 447-1791 Ext. 4431 OPERATING STATUS 1.

Unit.Name:

Millstone Unit 2 Notes:

Items 21 and 22 are 2.

Reporting Period: April 1987 weighted averages.

Unit 3.

Licensed Thermal Power (MWt):

2700 operated at 2560 MW 4.

Nameplate Rating (Gross MWe): W Thermal prior to its 5.

Design Electrical Rating (Net MWe):

870 uprating to the current 6.

Maximum Dependable Capacity (Gross MWe):

888.75 2700 MW Thermal power 7.

Maximum Dependable Capacity (Net MWe): 857.25 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 719 2879 99455 12.

Nuinber Of Hours Reactor Was Critical 707.1 2439.8 71578.1 13.

Reactor Reserve Shutdown Hours 0

0 2205.5 14.

Hours Generator On-Line 699.4 2403.4 67476.3 15.

Unit Reserve Shutdown Hours 0

0 468.2

16. Gross Thermal Energy Generated (MWH) 1863177 6383941 171131827 17.

Gross Elec. Energy Generated (MWH) 616000 2110900 55828379 18.

Net Electrical Energy Generated (MWH) 593711 2031285-53515292 19.

Unit Service Factor 97.3 83.5 67.8 20.

Unit Availability Factor 97.3 83.5 68.3 21.

Unit Capacity Factor (Using MDC Net) 96.3 82.3 63.5 22.

Unit Capacity Factor (Using DER Net) 94.9 81.1 62.5 23.

Unit Forced Outage Rate 3

16.5 16.2 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 COMMERCIAL OPERATION N/A N/A 8705120354 870 9 '

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-336 UNIT Millstone 2 5/8/87 DATE COMPLETED BY J. Gibson TELEPHONE (203) 447-1791 Ext. 4431 MONTH April 1987 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 864 17 386 2

864 18 859 3

865 19 864 4

865 20 863 5

865 21 863 6

866 22 862 7

866 23 862 8

865 24 863 9

865 25 862 10 366 26 863 11 866 27 862 12 867 28 862 13 865 29 862 14 866 30 862

~~~~

15 866 31 16 244 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 4

UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME Millstone 2 DATE 5/8/87 COMPLETED BY J. Gibson REPORT MONTH April 1087 TELEPHONE (203) 447-1791 Ext. 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 4

041687 F

19.6 H

3 87-007 N/A N/A Turbine / Reactor trip caused by Generator Exciter Field Breaker and Generator Field Breaker opening.

Root cause unknown.

A voltage measuring instrument has been installed on the suspect bistable.

See LER.

1 2

3 4

F:

Forced Reason:

Method:

Exhibit G - Instructions 5:

Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data l

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 (NUREG-0161)

E-Operator Training & 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) l i

Am

Docket No. 50-336 Date:

5/8/87 Completed By: J. Gibson Telephone: (203) 447-1791 Ext. 4431 REFUELING INFORMATION REQUEST 1

Name of facility: Millstone 2 2.

Scheduled date for next refueling shutdown:

January 23, 1988 3.

Schedule date for restart following refueling: April 1988 4.

Will refueling or resumption of operation thereafter require a technical specification change or other license amendment?

None at this time.

5.

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

None at this time.

6.

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

new or different fuel design or supplier, unreviewed design or petformance 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) 512 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 Pool.

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 reached.

1998, Core Full, Spent Fuel Pool.

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

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(203) 665-5000 May 8, 1987 MP-lo354 Re:

10C~R50.71(a)

U.S. Nuclear Regulatory Commission Document Control Desk Washington, D. C. 20555

Reference:

Facility Operating License No. DPR-G5 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 87-04 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

]YWJ Step] hen E. Scace Cdd' Station Superintendent Millstone Nuclear Power Station SES/GN:mw cc:

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

Director, Office of Resource Management T. Rebelowski, Resident Inspector

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