ML20098D651

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Monthly Operating Rept for Jul 1984
ML20098D651
Person / Time
Site: Millstone Dominion icon.png
Issue date: 07/31/1984
From: Bochert R, Mroczka E
NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES
To:
NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
MP-6331, NUDOCS 8409270685
Download: ML20098D651 (8)


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OFERATING DATA REPORT DOCKET NO. 50-336 DATE 9/12/84 COMPLETED BY R. Borchert TELEPHONE {203) 447-1791 Ext. 4418 OPERATING STATUS 1.

Unit Name:

Millstone Unit 2 Notes Items 21 and 22 cumulative 2.

Reporting Period:

August 1984 are weighted ave. unit 3.

Licensed Thermal Power (MWt):

2700 operated at 2560 MW Thermal 4.

Nameplate Rating (Gross MWe):

909 prior to its uprating to 5.

Design Electrical Rating (Net MWe):

870 the current 2700 MW thermal 6.

Maximum Dependable Capacity (Gross MWe):

895 power level.

7.

Maximum Dependable Capacity (Net P.We):

864 8.

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

Since Last Report, Give Reacons:

N/A 9.

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

N/A 10.

Reasons For Restrictions, If Any:

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

Hours In Reporting Period 744 5855 76127 12.

Number Of Hours Reactor Was Critical 744 5731.9 54097.2 13.

Reactor Reserve Shutdown Hours 0

0 2205.5 14.

Hours Generator On-Line 744 5429.1 51611.3 15.

Unit Reserve Shutdown Hours 0

0 468.2 16.

Gross Thermal Energy Generated (MWH) 1995846 14000111 130311780 17.

Gross Elec. Energy Generated (MWH) 630800 4505001 42311379 18.

Net Electrical Energy Generated (MWH) 607738 4327011 40542712 19.

Unit Service Factor 100 92.7 67.8 20.

Unit Availability Factor 100 92.7 68.4 21.

Unit Capacity Factor (Using MDC Net) 94.5 85.5 63.3 22.

Unit Capacity Factor (Using DER Net) 93.9 84.9 62.5 23.

Unit Forced Outage Rate 0

3.1 17.7 24.

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

Millstone Unit 2 is scheduled to shutdown in February 1985 for a 16 week refueling and maintenance outage 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 9409270685 840731

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PDR ADOCK 05000336 R

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f AVERAGE DAILY UNIT POWE9 t.EVEL-DOCKET NO. 50-336-UNIT Millstone 2 9/12/84~-

DATE

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' COMPLETED BY R. Borchert-TELEPHONE (2M ) 447-1791 Ext. 4418

' MONTH August 1984 DAY

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

(MVe-Net) 1 828 17 824~

-2 733 18 824 3

822 19 822 4

825 20 822 5

826

-21 822 6

924 22 821 7

749 23 820 8

824 24 821 9

825 25 821 10 825 26 820 11 825 27 819 12 825 28 819 13 824 29 817 14 824 30 815 15 820 31 814 16 821 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.

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DOCKET NO. 50-336 UNIT SHUTDOWNS AND POWER REDUClIONS UNIT NAME Millstone 2 DATE 9/12/84 COMPLETED BY R. Borchert REPORT MONTH August 1984 TELEPHONE (203) 447-1791 Ext. 4418 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

840802 F

0 A

5 N/A AA R0D While at 100%

power and during CEA power supply measurement, CEA dropped into core.

Power was reduced to < 70% power and CEA was recovered.

1 2

3 4

F:

Forced Reason:

Method:

Exhibit G - Instructions 5:

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)

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

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Docket No. 50-336-

-Date 9/12/84 Unit Name Millstone 2 Completed By R. Borchert' Telephone (203) 447-1791, Ext. 4418 CORRECTIVE MAINTENANCE SUMARY FOR SAFETY RELATED EQUIPMENT REPORT MONTH August 1984 DATE SYSTEM COMPONENT MAINTENANCE ACTION _

8/8/84 Gaseous.Radwaste 2-GR-4A Replaced valve.

8/20/84 RPS RPS Channels "B" and "D" Replaced Bi-stable power. supplies.

8/21/84.

Diesel Generator "A" Diesel Generator Replaced bearing.

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-8/31/84

.RPS RPS Channels "A", "B",

' Repair linear power amplifiers.

"C" and "D".

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Docket No.-50-336

'Date:

9/12/84~

Completed By: R. Sorchert.

Telephone: (203) 447-1791

' Ext. 4418

' REFUELING INFORMATION REQUEST /

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1.

Name of= facility: Millstone 2 2.

. Scheduled date for next refueling shutdown:

Next refueling is in February 1985.

3.

Schedule date for restart-following refueling:~ June.1985 4.

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

. Currently under evaluation due to the impact of failed fuel.

P 5.

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

4th quarter of 1984.

6.

Important licensing con siderations 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:

Discharge of failed fuel will impact reload analysis.

7.

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

(a) In Core: 217 (b) 376 8.

The present licensed spent fuel pool storage capacity and the size of any increase in licensed storage capacity that has been requested 4

or is planned, in number of fuel assemblies:

Cterently 667

" ans are being formulated to rcrack the spent fuel pool.

9.

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

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

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

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t OPERATING DATA REPORT DOCKET NO. 50-336 DATE 9/12/84 COMPLETED BY R. Borchert TELEPHONE (203) 447-1791 EXT. 4418 OPERATING STATUS 1.

Unit Name:

Millstone Unit 2 Notes Items 21 and 22 2.

Reporting Period:

July 1984 (Revise,ql cumulative are weighted 3.

Licensed Thermal. Power (MWt):

2700' averages.

Unit 2 operated-4.

Nameplate Rating (Gross MWe):

909 at 2560 MW thermal prior 5.

Design Elect"ical Rating (Net MWe):

870 to its uprating to the 6.

Maximum Dependable Capacity (Gross MWe):

895 current 2700 MW Thermal 7.

Maximum Dependable Capacity (Net MWe):

864 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 5111 75383 12.

Number Of Hours Reactor Was Critical 744 4987.9 53353.2 13.

Reactor Reserve Shutdown Hours 0

0 2205.5 14.

Hours Generator On-Line 744 4685.1 50867.3 15.

Unit Reserve Shutdown Hours 0

0 468.2 i

16. Gross Thermal Energy Generated (MWH) 1903852 12004265 128315934
17. Gross Elec. Energy Generated (MWH) 604700 3874201 41680579 18.

Net Electrical Energy Generated (MWH) 681715 3719273 39934974 19.

Unit Service Factor 100 91.7 67.5 20.

Unit Availability Factor 100 91.7 68.1 21.

Unit Capacity Factor (Using MDC Net) 90.5 84.2 63.0

22. Unit Capacity Factor (Using DER Net) 89.9 83.6 62.1 23.

Unit Forced Outage Rate 0

3.6 17.9 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 l

e DOCKET NO. 50-336 UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME' MILLSTONE 2 DATE 9/12/84 COMPLETED BY R. Borchert REPORT MONTH JULY 1984 (Revised)

TELEPHONE (203) 447-1791-EXT. 4418 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 7

840703 F

0 A

5 N/A AA R0D While at 100% power and during CEA power supply voltage measurement, CEA dropped into core.

Power was reduced'to

<-70% power and CEA recovered.

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N UTIEJTIES eneral ffices

P.O. BOX 270

((Z,27""

HARTFORD. CONNECTICUT 06141-0270

Z Z O';',","j ",*j (203) 66&69M L

L September 12, 1984 MP-6331 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 84-8 in accordance with Appendix A Technical Specifications, Section 6.9.1.3 One additional copy of the repcrt is enclosed.

Also attached are revisions for July 1984.

Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY E. J. Mroczka Station Superintendent Millstone Nuclear Power Station EJM/RB:ejz cc:

Director, Office of Inspection and Enforcement, Region I l

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

U. S. Nuclear Regulatory Commission, c/o Document Management Branch, l

Washington, D.C. 20555 ZG1.4 YI

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