ML20091K720

Monthly Operating Rept for Apr 1984

ML20091K720
Person / Time
Site:	Millstone
Issue date:	04/30/1984
From:	Borchert R, Mroczka E NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
MP-6016, NUDOCS 8406070180
Download: ML20091K720 (6)

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OPERATING DATA REPORT DOCKET NO. 50-336 DATE ng /1a /na COMPLETED BY R. Borchert TELEPHONE (203) 447-1791 Ext. 4418 OPERATING STATUS

1. Unit Name: Millstone Unit 2 Notes

2. Reporting Period: April 1984 Items 21 and 22 cumulative

~3. Licensed Thermal Power (MWt): 2700 are weighted ave. unit

.4. Nameplate Rating (Gross MWe): 909 operated at 2560 MW Thermal

5. Design Electrical Rating (Net MWe): 870 prior to its uprating to 6.' Maximum Dependable Capacity (Gross MWe): 895 the current 2700 MW

7. Maximum Dependable Capacity (Net MWe): 864 thermal 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 .

719 2903 73155

12. Number Of Hours Reactor Was Critical 719 2779.9 51145.2

13. Reactor Reserve Shutdown Hours 0 0 2205.5

14. Hours Generator On-Line 719 2477.1 48659.3

15. -Unit Reserve Shutdown Hours 0 0 468.2 16.~ Gross Thermal Energy Generated (MWH) 1935357 6224228 122535897

17. Gross Elec. Energy Generated (MWH) 633000 2010601 39816979

18. Net Electrical Energy Generated (MWH) 610772 1923752 38139453

19. Unit Service Factor 100.0 85.3 66.5

20. Unit Availability Factor 100.0 85.3 67.2

-21. Unit Capacity Factor (Using MDC Net) 98.3 76.7 62.0

22. Unit Capacity Factor (Using DER Net) 97.6 76.2 61.1

23. Unit Forced Outage Rate 0 6.0 15.2

24. Shutdowns Scheauled Over Next 6 Months (Type, Date, and Duration of Each):

None

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 M

B406070180 840430 PDR ADOCK 05000336 R PDR

c AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-336 UNIT Millstona_2 DATE nc/1a/Ra COMPLETED BY R. Borchert TELEPHONE (203) 447-1791 Ext. 4418 MONTH April 1984 1

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 1 849 17 855 2 852 18 855 3 853 19 854 4 853 20 855 5 852 21 856 6 853 22 857 7 853 23 854 I 8 853 24 851 9 853 25 854 10 855 26 853 I 11 853 27 853 I 12 853 28 850 13 853 29 840 14 854 30 846 15 756 31 N/A

-16 853 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.

u DOCKET.NO. 50-336 ,

UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME Millstone 2 -

DATE -- Os/14 /a4 ,

COMPLETED BY R. Borchert REPORT MONTH April 1984 TELEPHONE (203) 447-1791  :

Ext. 4418 l 2 Cause & Corrective No. Date Type Duration Reason Method of Licensee Systeg Compogent l (Hours) Shuttir.g 3 Event Code Code Action to Down Reactor Report # Prevent Recurreace 3 840415 F 0. 0 A 5 None RB Instru While at 100% power,.

CEA #57 dropped fully into core. Power was reduced to

<70% power and CEA was recovered.

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

Docket No.'50-330 '

Date 05/14/84 Unit Name Millstone 2-

, Completed By R.-Borchert

. Telephone (203) 447-1791 4

Ext. 4418 CORRECTIVE MAINTENANCE SUMARY FOR SAFETY RELATED EQUIPMENT REPORT. MONTH April 1984 DATE SYSTEM COMPONENT MAINTENANCE ACTION 4/4/84 Reactor Protection System 'C' RPS Channel Replace power supply trip Unit #3 4/7/84 CVCS 'A' Charging Pump- Replace cracked block with new~ block 4/11/84 CVCS 'C' Charging Pump . Repacked pump i 4/17/84 Diesel Generator 'B' Diesel Gen. Replaced jacket water expansion tank i

' alarm q 4/26/84 Reactor Protection System 'C' RPS Channel Replace 110 VDC ref. power supply i

j

.4 Docket No. 50-336 '

Date: ' 05/14/84 Completed By: R. Borchert Telephone: (203) 447-1791 Ext. 4418 REFUELING INFORMATION REQUEST

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: N/A

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

Currently under evaluation.

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

Not available at this time.

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:

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 l 8. The present licensed spent fuel pool storage capacity and the size

! of any increase in licensed storage capacity that has been requested l 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 ast,uming the present licen3ed capacity:

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

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

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,,x u,, .. . .,m. w.,,, HARTFORD CONNECTICUT 06141-o270 j ****'u au cow.- (203) 666-6911 L t May 14, 1984 MP-6016 Director Office of Management Information and Program Control V. 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 84-4 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 r

/ J E. J. Mroczka Station Superintendent Millstone Nuclear Power Station EJM/RB:jic cc: Director, 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 5h ,

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