ML19256A856

Monthly Operating Rept for Dec 1978

ML19256A856
Person / Time
Site:	Millstone
Issue date:	01/03/1979
From:	Howlett G NORTHEAST UTILITIES
To:
Shared Package
ML19256A855	List: ML19256A854 ML19256A856
References
NUDOCS 7901160237
Download: ML19256A856 (5)

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OPERATING DATA REPORT DOCKET NO. 50-336 DATE 1/1/79 LOMPLETED BY S. H Hnwlatt TELEPHO.NE 203/ A A7 1791

. Ext 364 OPERATING STATUS Notes <-

1. Unit Name: Millstone ?

2. Reporting Period: _Doremhor 147R

3. Licensed Thermal Power (MWt): 2560

4. Nameplate Rating (Gross MWe): 909 ,

5. Design Electrical Rating (Net MWe): 830

6. Maximum Dependable Cr'scity (Gross MWe):

842

7. Maumum Dependable Ca3.acity (Net MWe): 810

8. If Changes 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): Nene *

. 10. Reasons For Restrictions,1f Any: Nnno 4

This Month Yr to-Date Cumulative ,

8760 .pgagg i

11. Hours In Reporting Period 744

12. Number Of Ilours Reactor Was Critical 744 6065_5 19527.7

13. Reactor Reserve Shutdown Hours 0 120,0 2000.7 ~

14. Hours Generator On-Line 7aA 5757.6 'l8431.7

15. Unit Reserve Shutdown Hours n 133.5 226

16. Gross Thermal Energy Generated (MWH) 1.900.976 14.375_l59 41_RR9.911 1

17. Gross Electrical Energy Generated (MWH) 624.600 __. 4.697.890 14.028.801

18. Net Electrical Energy Generrted (MWH) 601,807 4.500,379 13.41'6.~691

19. Unit Service Factor 100 65.7 69.7  ;

20. Unit Availability Factor 100 67.3 70.5 '

21. Unit Capacity Factor (Using MDC Net) - 44 4 A1 a A2.6

22. Unit Capacity Factor (Using DER Net) 97 5 61_9 61_1

23. Unit Forced Outage Rate 0 26.3 _i',3'

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

Refueling March 24, 1979 10 Weeks .

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25. If Shut Down At End Of Report Period. Estimated Date of Startup: /

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 79011602 31 (9/77)

AVER AGE D AILY UNIT POWER LEVEL DOCKET NO. 50-336 unir Millstone 2 DATE l/4/79 t.UNIPLETED BY G.H. Howlett TELEPHONE 203/447-1791 Ext. 364 510NDI December 1978

, DAY AVERAGE DAILY POWER LEVEL DAY AVER AGE DAILY POWER LEVEL

, (N!We Net) (MWe. Net) 3 810 37 810 2 805 is 808 3 810 39 809 4 810 20 809 810 s 21 81 0 6 8S 22 810 7 -

23 8 811 24 810 9

0ll 25 810 10 809 26 789 in 810 27 807 12 809 808 28 13 809 29 808 14 809 30 811 15 810 3, 811 16 _

803 IN' TRUCTIONS On this format. list the average daily i; nit power leselin 51%e. Net for each day in the reponing month. Compute to -

the nearest whole megawait.

(9/77)

l .

DOCKET NO.

50-336

. UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NA3f E Millstone 2 DATE I/5//9 COMPLETED BY .G.H. Howlett REPORT MONTH December 1978 TELEPif0NE 203/447-1791 oxt. 364 4

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- jp "h j ,_E 5 Licensee E,, je. Cause & Correct- e 3g ,s s 5 Event g? g"g Action to No. Daic h n mO Prevent Recurrence H

f: 5 jgg Report

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t Summary: The unit operated at or,near 10'0% ' rated. thermal . power throughout .the. rep. ort'ing period.

e 0

• e (9/77) .

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9

Docket No. 50-336 . '.

Page 1 of j Date 1/9/79 Unit Name Millstone d Completed By G.H. Howlett Telephone tus/44/-i/9 txt. 3o4 C0h .CCTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT Report Month November 1978 DATE SYSTEM COMPONENT MAINTENANCE ACTION -

11/11/78 Chemical & Volume Heat [racingckt.P-21 Installed new heat tracing.

Qontrol 11/15/78 Service Water Vital A.C. switchgear room Machined corroded cooler heads.

coolers X-181,182, & 183 11/21/78 Chemical & Volume Charging pump P-18A Replaced pump.

Control 11/22/78 Chemical & Volume Charging pump P-18C Replaced pump discharge valves.

Control 11/30/78 Reactor Building RBCCW pump P-11B Replaced mechanical seal.

Closed Cooling Water 4

Docket No. 50-336 Date: 1/10/79 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: March 24, 1979

3. Schedule date for restart following refueling: May 19, 1979

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

Because the Spring,1979 refueling will be only the second at Millstone Unit No. 2., Technical Specification Changes are anticipated, especially in the area of reactor engineering specifications. Inspections of the CEA guide tubes and the steam generators are scheduled for the second refueling outage; the results of these inspections may ultimately involve a license amendannt. Review of the reload design is scheduled for January,1979.

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

" Licensing submittals are scheduled as outlined in the November 1,1978 letter from W. G. Counsil to R. Reid."

6. Important licensing considerations associated with refueling, e.g., new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes :n fuel design, new operating procedures:

Serious consideration has been given to uprate the thermal output for cycle 3 from 2560 MWT to 2700 MWT. Further schedular & tails will be forwarded as they developed.

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

(a) In Core: 21 7 ih; 72

8. The present licensed spent fuel pool storage capacity and the size of any increase in licensad storage capacity that has been requested or is planned, in number of fuel assemblies:

667

9. The projected date of tne 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 64' bundles.