ML20093J310

Monthly Operating Rept for June 1984

ML20093J310
Person / Time
Site:	Millstone
Issue date:	06/30/1984
From:	Gibson J, Joseph Kelly, Mroczka E NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
MP-6194, NUDOCS 8407300033
Download: ML20093J310 (6)

Text

O O OPERATING DATA REPORT DOCKET NO. 50-336 DATE 7/11/s4 COMPLETED BY J. G1BSON TELEPHONE (203) 447-1791 EXT. 4431 OPERATING STATUS

1. Unit Name: Millstone Unit 2 Notes: Items 21 and 22 cumulative

2. Reporting Period: June 1984 are weighted averages.

3. Licensed Thermal Power (MWt): 2700 Unit 2 operated at 2560 MW

4. Nameplate Rating (Gross MWe): 909 thermal prior to its current

5. Design Electrical Rating (Net MWe): 870 2700 MW thermal power level.

6. Maximum Dependable Capacity (Gross MWe): 895

7. Maximum Dependable Capacity (Net MWe): 864

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 720 43G7 74639

12. Number Of Hours Reactor Was Critical 720 4243.9 52609.2

13. Reactor Reserve Shutdown Hours 0 0 2205.5

14. Hours Generator On-Line 720 3941.1 50123.3

15. Unit Reserve Shutdown Hours 0 0 468.2

16. Gross Thermal Energy Generated (MWH) 1877970 10100413 126412082

17. Gross Elec. Energy Generated (MWH) 607800 3269501 41075879

18. Net Electrical Energy Generated (MWH) 585656 3137558 39353259

19. Unit Service Factor 100 90.3 67.2

20. Unit Availability Factor 100 90.3 67.8

21. Unit Capacity Factor (Using MDC Net) 94.1 83.2 62.7

22. Unit Capacity Factor (Using DER Net) 93.5 82.6 61.8

23. Unit Forced Outage Rate 0 4.2 18.1

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): F6 recast Achieved

! INITIAL CRITICALITY N/A N/A INITIAL ELECTRICITY N/A N/A COMMERCIAL OPERATION N/A~ N/A l

8407300033 840630 PDR ADOCK 05000336 R PDR L

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-336 UNIT MILLSTONE 2 DATE 7/11/84 COMPLETED BY J. GIBSON TELEPHONE (203) 447-1791 EXT. 4431 MONTH June 1984 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER 'EVEL (MWe-Net) (MWe-Net) 1 843 17 847 2 760 18 846 3 841 19 844 4 847 20 844 5 848 21 844 6 849 22 748 7 848 23 837 8 848 24 837 ,

9 847 25 838 -

10 847 26 842 11 845 27 841 12 848 28 838 13 847 29 831 14 846 30 105 15 848 31 -

16 848 INSTRUCTIONS On this format, list the average daily unit power level ir MWe-Net for each day in the reporting month. Computc to the nearest whole megawatt.

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

i DATE 7/11/84 COMPLETED BY J. Gibson.

REPORT MONTH June 1984 TELEPHONET203)447-1791 EXT. 4431

' l 2 No. Date Type Duration Reason Method of Licensee Systeg Compogent Cause & Corrective i

(Hours) Shutting 3 Event Code Code Action to l Down Reactor Report # Prevent Recurrence 5 840622 F 0 H 5 N/A AA R0D While at 100% power and during CEA

motion testing, CEA

dropped fully into i' the core. Power was reduced to < 70%

j power and CEA was

, recovered.

i '

6 840629 5 0 B 5 N/A SB SHV Power reduction from 1 100% power to 12%

l power for repair of

2-MS-432A/B. Valves

, inside containment.

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 l D-Regulatory Restriction 4-Continued from (NUREG-0161)

! E-Operator Training & License Examination previous month F-Administrative 5-Power Reduction 5 i

G-Operational Error (Explain) (Duration = 0) Exibibit 1 - Same Source ,

H-Other (Explain) 9-Other (Explain)

)

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Docket No. 50-336 Date 7/11/84

~

Unit Name Millstone 2

] Completed By J. Gibson

' Telephone (203) 447-1791 EXT. 4431 CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT _

REPORT MONTH June 1984 DATE SYSTEM COMPONENT MAINTENANCE ACTION 4

S/8/84 Reactor Protection Channel 'D' RPS Replaced s. team generator pressure System bistable card.

6/8/84 CVCS- 2-CH-160 Replaced leaking cap gasket on b~oric acid pump discharge relief valve. ,

e 6/12/84 Reactor Protection Wide Range Replaced bistable card. -

System Channel 'D'

~

i 6/25/84 Main Steam Blowdown Quench Replaced upper and lower Tank Motor bearings.

6/26/84 Main Steam Blowdown Quench Replaced: Suction Plate /Impellar/

Tank Pump Mechanical Seal / Pump Shaft i

i e

1

, . . o Docket No. 50-336 Date: 7/11/84 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: Next refueling is in February 1985.

Schedule date for restart following refueling: N/A 3.

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

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 capacity is reached.

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

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NORTIEiA57 UT!tJTVES Genwal OHipp Sethn Stret. Belm, Cenntat 9 ,Ed wE,f,][",,"""" P.O. BOX 270

,,. #t ..... .. . un.- HARTFORD. CONNECTICUT 06141-0270 L ' 4 :;2'C',%T.=- (203) 666-69 M July 12, 1984 MP-6194 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 84-6 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: Edo rd J. Mroczka Station Superintendent Millstone Nuclear Power Station BY: J mes J. Kelley Unit 2 Superintendent Millstone Nuclear Power Station EJM/JG:ck 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 M

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