ML20064J543

Monthly Operating Rept for Mar 1979

ML20064J543
Person / Time
Site:	Millstone
Issue date:	04/05/1979
From:	Howlett G NORTHEAST UTILITIES
To:
Shared Package
ML20064J541	List: ML20064J531 ML20064J543
References
NUDOCS 7904170277
Download: ML20064J543 (5)

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OPERATING DATA REPORT DOCKET NO. 50-336 DATE 4/5/79 COMPLETED BY G.H. Ho# ett TELEPHO.NE 203/447-' 791 X364 OPERATING S'TATUS

1. Unit Name: Millstone 2 Notes

2. Reporting Period: March 1779

3. Licensed Thennal Power (MWt): 2560

4. Nameplate Rating (Gross MWe): 909

5. Design Electrical Rating (Net MWe): 830

6. Maximum Dependable Capacity (Gross MWe): 842

7. Maximum Dependable Capacity (Net MWe): 810

8. If Chsnges Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report, Give Reasons:

None

9. Power Level To Which Restricted,If Any (Net MWe): None

10. Reasons For Restrictions,if Any: None This Month Yr..to.Date Cumulative

11. Hours In Reporting Period 744.0 2160.0 28,608.0

12. Number Of Hours Reactor Was Critical 220.6 1571.7 __

21,099.4

13. Reactor Reserve Shutdown Hours .0 64.9 2,065.6 .

14. Hours Generator On.Line 220.5 1556.0 19,987.7

15. Unit Reserve Shutdown Hours .0 0 226

16. Gross Thermal Energy Generated (MWH) 539,470 3,894,782 47,777,015 .

17. Gross Electrical Energy Generated (MWH) 176,040 , _ ,

1,281,250 15,310,051

( 18. Net Electrical Energy Generated (MWH) 166,751 1,228,748 1a,64~5,439 29.6 l 19. Unit Service Factor 72.0 69.9

20. Unit Availability Factor 29.6 72.0 ~ 70.7

21. Unit Capacity Factor (Using MDC Net) 27.7 70.2 63.2

22. Unit Capacity Factor (Using DER Net) 27.0 68.5 61.7

23. Unit Forced Outage Rate 0 0 22 9 l

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24. Shutdowns Scheduled Over Next 6 Months (Type.Date.and Duration of Each1: .

N/A l

25. If Shut Down At End Of Report Period, Estimated Date of Startup: Mav 15.1979

26. Units In Test Status (Prior to Commercial Operation): Forecast Achieved INITIA L CRITICALITY N/A N/A INITIA L ELECTRICITY N/A N/A COMMERCIAL OPERATION N/A N/A 790417o 9 7 7 <9g7) s

t DOCKET NO. 50-336 UNITSIIUTDOWNS AND POWER REDUCTIONS UNIT NAME Millstone 2 DATE 4/6/79 -

COMPLETED BY G ll- linwl ett .

REPORT MONDI March 1979 TELEPilONE 203/447-1791 X364 E PO *4

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.3 e g Licensee ,E r, E Cause & Corrective No Date g 3g  ;; 7.s4

,c g 5 Event u 52 E.".

• Action to

$3 5 j di j Report

• N0 jS" Prevent Recurrence 3

03 79 03 10 S 523.5 C 1/2 N/A N/A N/A Power was reduced from 93% to 8% and the reactor was manually tripped for an incore detector response test.

Summary: The unit coasted down in power from the 1st through the 10th at which time cycle 3 refueling conmenced.

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AVER AGE D4ILY UNIT POhER LEVEL DOCKET NO. 50-336 LwIT _tii11 stone 2 DATE April 5,1979 C041PLETED BY G. H. Howlett TELEPHONE 203/447-1791 X364-MONTH fiarch 1979 -

DAY AVERAGE DAILY POWER LEVEL ~ DAY AVERAGE DAILY POWER LEVEL 01We-Net) ofwe. Net) 1 800 0 (-5)

- 37 2 793 18 0 (-5) 3 788 i, 0 (-4) 781 0 (-4) 4 y, 5 774 21 0 (-4) 6 770 22 0 (-3) 7 764 23 0 (-4) g 755 ,4 0 (-3) 9 751 0 (-4) 25 10 63 26 0 (-4) 11 0 (-5) 27 0 -(-4)

.i, 0 (-5) ,3 0 (-4) 13 0 (-5) ,,

0 M 14 0 (-5) 30 0 (-4) is 0 (-5) 33 0 (-4) 16 INSTRUCTIONS On this for::st. hst he serage dai!) : nit ps-a e leul in MWeNet for n.h de> in the reart:n; . r.th. Cmnpute to the nearest whvie : ega *att.

(9I77)

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. Docket No. 50-336

. Date: 4/5//9 Completed By: G.H. Howlett III Telephone: 203/447-1971 X364 REFUELING INFORMATION REQUEST

1. Name of facility: Millstone 2

2. Scheduled date for next refueling shutdown:

The unit shutdown for cycle 3 refueling on March 10, 1979.

3. Schedule date for restart following refueling: May 15, 1979

4. Will refueling or resumption of operation thereafter require a technical -

specification change or other license amendment?

Proposed technical specification changes are docketed in the February 12, 1979 letter from W.G. Counsil to R. Reid.

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

Proposed licensing action and supporting information has been submitted.

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:

It is anticipated that the maximum licensed thermal output will be increased from 2560 Mwt to 2700 MWt.

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

(a) In Core: 21 7 (b) 72

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:

1983, Spent Fuel Pool, full core off load capability is reached.

1986, Core Full, Spent Fuel Pool contains 648 bundles.

Docket flo. 50-336 ,

Pa9a 1 of 1 Date 4/10/79 Unit Name Millstone 2 Completed By G.ll. Ilowlatt -

Telephone 203/447-1791 X364 CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT Report Month February 1979 DATE SYSTEM COMPONENT MAINTENANCE ACTION 2/12/79 Reactor Protection Channel 'C' wide range Replaced Q8 & Q9 transistors.

discriminator card.

2/14/79 ' Reactor Protection Channel 'A' Local Power Replaced 112 , 113 module in CPC-2 Cil. 'A' R.P.S.

Density voltage comparator. i 2/26/79 Reactor Protection Channel 'A' Low Flow I/I Replaced I/I converter.

converter.

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