ML20076N504

Monthly Operating Rept for May 1983

ML20076N504
Person / Time
Site:	Millstone
Issue date:	06/10/1983
From:	Gibson J, Mroczka E NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
MP-5104, NUDOCS 8307220042
Download: ML20076N504 (6)

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3 ;- _ y OPERATING DATA REPORT DOCKET NO.

'50-336 DATE-6/10/83 COMPLETED BY J. Gibson TELEPHONE (203) 447-1791 Ext. 4431 OPERATING STATUS l'.

Unit Name:

Millstone 2 Notes Items 21 and 22 2.

Reporting Period:

May 1983 cumulative are weighted 3.

Licensed Thermal Power (MWt):

2700-ave. unit operated at f 4.

Nameplate Rating (Gross MWe):

909 2560 MW thermal prior to

5.

Design Electrical Rating (Net MWe):

870 its uprating to its 6.

. Maximum Dependable Capacity (Gross.MWe):

891 current 2700 MW thermal 7.

Maximum Dependable Capacity (Net MWe):

860.25 power level.

• See footnote.

8.

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

Since Last Report, Give' Reasons:

MDC gross and net art decreased due to' secondary side efficiency problems.

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 3623 65135 12.

Number Of Hours Reactor Was Critical 652.1 3130.5 48365.3 13.

Reactor. Reserve Shutdown Hours 0

0 2205.5 14.

Hours Generator On-Line 652.1 2994.9 46182.2 15.

Unit Reserve Shutdown Hours 0

0

-468.2 16.

Gross Thermal Energy Generated (MWH) 1712695 7877464 13171669

-17.

Gross Elec. Energy Generated (MWH)~

562900 2575530 37806378 18.

Net Electrical Energy Generated (MWH) 541706 2474369.3 36236182 19.

Unit-Service Factor 87.6 82.7 70.9 20.

Unit Availability Factor 87.6 82.7 71.6

21.. Unit Capacity Factor (Using MDC Net) 84.6 79.2 66.8 23.

Unit Forced Outage Rate 0

13.7-65.9 22.

Unit Capacity Factor (Using DER Net) 83.7-78.5 19.1 24.

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

Refueling outage, May 28, 1983, 16 weeks 25.

If Shut Down At End Of Report Period, Estimated Date of Startup: September 17, 1983 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

• Item 21 yr-to-date is weighted ave due to change in MDC effective May 1,1983. [hb-8307220042 830610 PDR ADOCK 05000336 R

PDR

3.c AVERAGE DAILY UNIT POWER LEVEL

. DOCKET NO.

50-336 UNIT Millstone ~2 DATE 6/10/83-

' COMPLETED BY J. Gibson TELEPHONE (203) 447-1791 Ext. 4431 MONTH MAY'83 DAY

-AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILi POWER LEVEL

-(MWe-Net)

(MWe-Net) 1 834 17 833 2

858 18 828 3

859 19.

822 4-860 20~

816 5

860

'21 811 6-860 22 807 7

859 23 802 8

-857 24 798 9-856 25 788 10 856 26-784

-11 855 27 781 12 858 28 78 13 852 29 0

14 846 30 0

15 841 31 0

16 834

-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 6/10/83 COMPLETED BY J. Gibson REPORT MONTH May 1983 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 5

830528 5

91.9 C

1 N/A N/A N/A Shutdown for Refueling and Maintenance 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-Refuling 3-Automatic Scram Event Report (LER) File D-Regulatory Restriction 4-Other (Explain) (NUREG-0161) i E-Operator Training & License Examination F-Administrative 5

G-Operational Error (Explain)

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

Docket No.

50-336 Date 6/10/83 Unit Name Millstone 2 Completed By J. Gibson Telephone (203) 447-1791 CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT REPORT MONTH May 1983 DATE SYSTEM COMPONENT MAINTENANCE ACTION 5/6/83 CVCS

'A' Charging Pump Change oil in pump 5/18/83 CVCS

'A' Charging Pump Repacked pump 5/25/83 Main Steam Atmospheric Steam Dumps Install pitot tubes 5/25/83 Safety Injection 2-SI-306 Adjust limit switchs for proper indication 5/29/83 Safety Injection

'B' LPSI' Pump Replace lower bearing, seal and gasket h

--~~---

Docket No.

50-336 Date:

6/10/83 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: May 28, 1983 3.

Schedule date for restart following refueling: September 17, 1983 (16 wks outage) 4.

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

It is anticipated that Cycle 6 operations will require Technical Specification-changes or other License amendments.

5.

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

Safety Analyses:

April 13, 1983 Steam Generator Licensing Action:

June 3, 1983 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:

Additional plugged steam generator tubes will result in potential reactor coolant flow reduction.

Currently planning to install sleeves in steam generator tubes.

7.

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

(a) In Core:

217 (b) 288 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:

667 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 capability is reached.

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

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June 14, 1983 MP-5104 Director Office of Management Information and Program Control 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 83-5 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 IM E. J. Mroczka l

Station Superintendent Millstone Nuclear Power Station EJM/JG:jlc cc:

Director, Office of Inspection and Enforcement, Region I l

Director, Office of Inspection and Enforcement, Washington, D. C. (10) l U. S. Nuclear Regulatory Commission, c/o Document Management Branch, Washington, D.C. 20555 l

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