ML20076B061

Monthly Operating Rept for Apr 1979

ML20076B061
Person / Time
Site:	Millstone
Issue date:	05/02/1979
From:	Howlett G NORTHEAST UTILITIES
To:
Shared Package
ML20076B059	List: ML20076B054 ML20076B061
References
NUDOCS 7905150505
Download: ML20076B061 (5)

Text

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OPERAT!NG D'ATA REPORT DOCKET NO. 50-336 DATE .5_/ 2/ 79 FLEP 10, 'E b4 X364 OPERATING STATUS Millstone 2 Notes <

l. Unit Name:

2. Reporting Period: _Aoril 1979 2560 ;5

3. Licensed Thennal P4.wer (MWt):

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 Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report, Give Reasons:-

• q None U .

9. Power LevelTo Which Restricted,1f An (Net MWe): None -

10. Reasons For Restrictions,If Any: one This Month Yr.-to-Date Cumula'tive , .

2,879 29,327-  !

11. Ilours In Reporting Period 719

12. Number OfIlours Reactor Was Critical 0 1,571.7 21,099.4

13. Reactor Reserve Shutdown IIours 0 64.9 2,065.6; -

14. Ilours Generator On-Line 0 1.556 19,987.7

15. Unit Resene Shutdown Ilours 0 0 226 -

16. Gross Thermal Energy Generated (MWil) 0 3,894,782 47.777,015  ;

] 17. Gross Electrical Energy Generated (MWH) 0 , , , ,

1,281,250 15,310,051

18. Net Electrical Energy Generated (MWH) 0 (-3073) 1,225,675 14,642',366  :,

19. Unit Service Factor 0 54.0 68.1 ,

20. Unit Availability Factor 0 54.0 68.9 -

21. Unit Capacity Factor (Using MDC Net)

U 52.5 61.6

22. Unit Capacity Factor (Using DER Net) 0 51.3 -60.2 ' ~

23. Unit Forced Outage Rate 0 0 - 22;9 -

24. Shutdowns Scheduled 0.cr Next 6 Months (Type.Date.and Duration of Each): -s.. ,

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None ,

z- , ,

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

26. Units in Test Status (Prior to Commercial Operation): Forecast Achieved

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INITIA L CRITICALITY N/A N/A .

, INITIA L ELECTRICITY N/A N/A.

I COMMERCIAL OPERATION N/A N/A: -

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A\ FR AGE DAILY UNIT POWER LEVEL DOCKET NO. 50-336

. UNIT Millstone 2 DATE _5]_2/79 CONIPLETED BY G.H. Howlett <

TELEPilONE 203/447-1791 X364

'5 MONTil April 1979 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (Mwe.Neg)

0 (-3) 37 0 -(-5)

(-4) (-5)

O 2 0 (-3) 18 0 (-5) 3 39 4 0 (-3) 20 0 .(-5) 5 0 _(-A) 21 0 (-5) 6 0 (-4) 22 0 (-5) 7 0 (-5) 23 0 (-5) 8 0 (-5) 24 0 (-5) 9 0 (-5) 33 0 (-4) 10 0 (-5) 26 0 (-5) 11 0 (-5) 27 0 .(-4)

O 12 0 c-4) 2, 0 (-3) 13 0 (-5) 39 0 (-3) 14 0 (-5) 3o 0 (-3) 15 0 (-5) 3, 16 0 (-5) i INSTRUCIlONS ,

i On this forir.st.lisi the aserage dai!) unit power leselin MWe Nei for each day in the repo: ting inonth. Compute to k the nearest whole mepwait. '

, (9/77)

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UNITSliUTDOWN$ AND POWER REDUCTIONS DOCKETNO. _50-336 UNIT NAME Millstone 2 DATE 9/2/70 ".

G.H. Howlett III COMPLETED BY REPORT MONTH ADril 1979 TELEPliONE 201/447-1791 X164 C Pl *A "o Cause & Corrective No* Date-E. S j 7s3

-5 g ec 5e Event o%

5, " g"g Action to p 3.2  ;;

Report # rn 0 Prevent Recurrence o 0- E y 25 i g d

3 790310 S 719.0 C 1/2 N/A N/A N/A Refueling outage continuing R

'SummaryF The unit was shut down~throGgh6ut the Yeportini period for scheduled Cycle 3 refueling.

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Docket No. 50-336

- '* Date: SL7/79 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:

c 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 . tion 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 MUt.

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

- Q 7. storage pool:

(a) In Core: 217 (b) 144 4

8. The present licensed spent fuel pool storage capacity and the size of any i 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 No. 50-336 Page i of 1 l i Date '5/4/79

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Unit Name "i iistone 2 '

Completed By G.H. Howlett Telephone 203/447-1791 X364- -

'- CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT Report Month March 1979 SYSTEM COMPONENT MAINTENANCE ACTION DATE 2/10/79 Chemical & Volume P-18A, Charging pump. Repacked pump.

Control 3/3/79 Nuclear Instrumenta- Channels A,B,C & D. Wide Range Replaced detectors.

tion B10 Detectors 3/5/79 Reactor Protection Channel ' A' low flow, PDY-121 A Replaced C1 (capacitor) and 25 Volt power supply filter capacitor.

3/15/79 Diesel Generator 2-DG-31 A, D/G starting air Rebuilt valve.

flask ' A' Iso Valve. -

3/19/79 Reactor Protection Channel 'D' Wide Range Pre-Amp Replaced pre-amp.

PA-6A 3/20/79 Main Steam 2-MS-201, Steam supply Iso Valve Replaced seal ring.

to Stm. driven Aux. feed pump.

3/23/79 Service Water P-5A, Service Water Pump Weld repair on suction bowl .

3/28/79 Chemical & Volume P-18C, Charging pump Repacked pump. ,

Centrol 3/29/79 Safety Injection 2-SI-648, SlS Header 28 Check Rebuilt valve Valve Leak Drain stop.

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