ML20207E865

Monthly Operating Rept for Aug 1986

ML20207E865
Person / Time
Site:	Millstone
Issue date:	08/31/1986
From:	Neron G, Romberg W NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
MP-9501, NUDOCS 8701050168
Download: ML20207E865 (6)

Text

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-336 UNIT Millstone 2 DATE 9/15/86 COMPLETED BY G. Neron TELEPHONE (203) 447-1791 Ext. 4417 MONTH August 1986 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 835 17 565 2

834 18 840 3

834 19 844 4

833 20 846 5

832-21 847 6

831 22 848 7

830 23 847 8

830 24 847 9

829 25 847 10 829 26 847 11 822 27 845 12 0

28 847

.13 0

29 848 14 0

30 847 15 0

31 845 16 34 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.

8701050168 860931 DR ADOCK0500g6 g

'//

1

OPERATING DATA REPORT DOCKET NO. 50-336 DATE 9/15/86 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:

August 1986 cumulative are weighted 3.

Licensed Thermal Power (MWt):

2700 averages.

Unit operated at 4.

Nameplate Rating (Gross MWe):

909 2560 MW thermal prior to 5.

Design Electrical Rating (Net MWe): 870 its 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 744 5832 93648 12.

Number Of Hours Reactor Was Critical 666 5747.4 68285.1 13.

Reactor Reserve Shutdown Hours 0

0 2205.5

14. Hours Generator On-Line 632.4 5620.3 64338 15.

Unit Reserve Shutdown Hours 0

0 468.2

16.. Gross Thermal Energy Generated (MWH) 1670198 15026558 163130360

17. Gross Elec. Energy Generated (MWH) 537000 4860900 53202379

18. Net Electrical Energy Generated (MWH) 513694 4681096 51002315

19. Unit Service Factor 85.0 96.4 68.7 20.

Unit Availability Factor 85.0 96.4 69.2 21.

Unit Capacity Factor (Using MOC Net) 80.5 93.6 64.6 22.

Unit Capacity Factor (Using DER Net) 79.4 92.3 63.6 23.

Unit Forced Outage Rate 15.0 2.2 16.2 24.

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

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 e/A COMMERCIAL OPERATION N/A N/A

,I

i DOCKET NO. 50-336 UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME Millstone 2

)

DATE 9/15/86 COMPLETED BY G. Neron i

REPORT MONTH AUGUST 1986 TELEPHONE (203) 447-1791 Ext. 4417 l

2 No.

Date_

Type Duration

' Reason Method of Licensee Systeg Compogent Cause & Corrective 3

(Hours)

Shutting Event Code Code' Action to

{

3 Down Reactor Report #

Prevent Recurrence

]

1 3

8-12-86 F

'111.6 H

3 LER #005 N/A N/A Station Electric Service Buses 22A and 22B were cross-tied. The loss of Bus 228, and consequently Bus 22A, resulted in the subsequent loss of the "A" S/G feed pump.

This resulted in a loss of level in the #1 S/G which caused the reactor trip.

See LER.

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 (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)

Docket No. 50-336 Date 9/15/86 Unit Name Millstone 2 Completed By G. Neron Telephone (203) 447-1791 Ext. 4417 CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT l

(

REP 0FT MONTH AUGUST 1986 DATE SYSTEM COMPONENT MAINTENANCE ACTION 8-20-86 Service Water "A" Service Water Pump Installed new pipe flanges.

Discharge Strainer Assy 8-10-86 Service Water RBCCW Heat Exchanger Service Weld repair of leak.

Water Outlet Pipe 8-16-86 Service Water Service Water Booster Weld repair of leak.

Pumps Supply Pipe 8-15-86 Diesel Generator "A" Emergency Diesel Replaced engine speed switch.

8-23-86 Process and Area Aerated Liquid RW & Clean Replaced main CPU board in PIOPS.

Radiation Monitor-Liquid RW Radwaste Process ing Radiation Monitor System

Docket No. 50-336 Date:

9/15/86 Completed 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 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?

N.9 5.

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

A request fo, a Technical Specification Change to allow a reduction in Reactor Coolant System Flow due to Steam Generator Tube Sleeving and Plugging will be submitted sometime in September 1986.

6.

!nportant licensing considerations associated with refueling, e.g.,

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

0

.A N UTILITIES oaneral Offices

• Selden Street. Berlin Connecticut 9

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P.O. BOX 270

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September 15, 1986 MP-9501 Director, Office of Resource Management U. S. Nuclear Regulatory Commission Washington, D. C. 20555

Reference:

Facility Operatin~g 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 86-08 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: Wayne D. Romberg Station Superintendent Millstone Nuclear Power Station BY:

James J. Kelley Station Services Superintendent Millstone Nuclear Power Station WDR/GN:(.k 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

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