ML19207A323

Monthly Operating Rept for Jul 1979

ML19207A323
Person / Time
Site:	Millstone
Issue date:	08/02/1979
From:	Howlett G NORTHEAST UTILITIES
To:
Shared Package
ML19207A321	List: ML19207A320 ML19207A323
References
NUDOCS 7908160444
Download: ML19207A323 (4)

Text

..OPERATLNG DATA REPORT DOCKET NO.

50-336 DATE 8/2/79 COMPLETED BY G.H. Howlett TELEPHONE 203/447-1791 X364 OPERATING STATUS Notes *l Items 21 and 22

1. Unit Name:

l'i.llstone 2 Yr-To-Date and cumulative

2. Reporting Period: Juiv 1979 re computed by using a

3. Licensed Thermal Power (MWtp: 2700 weighted average.

909 4. Nameplate Rating (Gross MWe):

S. Design Electrical Rating (Net MWe):

870 896 6. Maximum Dependable Capacity (Gross MWe):

7. Masimum Dependable Capacity (Net MWe):

864 8. !f Changes Occur in Capacity Rt.:ngs (Items Number 3 Through 7) Since Lrst Report. Give Reascns:

Items 5, 6 & 7 reflect increase in L~,?nsed Thermal Power from 2560 to 2700 Mwth.

9. Power Lesel To Which Restricted.lf Any (Net MWe):

None None 10. Reasons For Restrictions. If Any:

This Month Yr -to-Dat e Cumulative 744 5,087 31.535 il. Hours in Reporting Period 744 3,135.7 22.663.4 12. Number Of Hours Reactor Was Critical

13. Reactor Reserve Shutdown Hours 0 71-2.072.4 14. Hours Generator On-Line 744 3.005.6 21.437.3 0 109.4 335.4 15. Unit Reserve Shutdown Hours

16. Gross Thermal Energy Generated (MWH) 1.989.041 7.531.524 51.413,757

.17. Gross Electrical Energy Generated (MWH) 656J60 2,485,850 16,514,651

18. Net Electrical Energy Generated (MWH) 633,743 2,376,218 15,792,909

19. Unit Sersice Factor 100 59.1 68.0 20. Unit Asailability Factor 100 61.2 69..98.6 67.4 *l 61.8 *l 21. Unit Capacity Factor (Using MDC Net)

22. Unit Capacity Factor (Using DER Net) 97.9 56.1 *1 60.3 *1 23. Unit Forced Outage Rate 0 7.3 22'.3 24. Shutdowns Scheduled Oser Next 6 Months (T)pe. Date, and Duration of Eacht-Steam Generator Feedwater Nozzle Inspection, Sept.mber 1, 1979, 3 Weeks.

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

N/A 26 Units In Test Status (Prior to Commercia! Operation):

Forecast Achiesed INITIA' CRITICALITY N/A N/A'INITIAL ELECTRICITY N/A N/A COMMERCIAL OPER ATION N/A N/A 798, 347 (9/77 )7908160

..O f f' U.E D ALLY UNil POhf R LE\ EL 50-336 DOCKE F NO.

UNir Mil.lstone_2_.

D 41 E 8/2/79 CO .1PLE I E D 11Y

_G.H.Howlett 203/447-1791 X364 T El.EPHOVE July 1979 ms ni D \Y O I R \t.E D \!L) I Ohi-R I I \ F L D -\ Y.O E R \GF D ALLY POhER LE\ FL i .t h: Nrt i

'\f N Ncti

'863 1_17___ 862_ ___ _ _864_is__861___864 860 3__io____4__864. _. __:o.._ _ _ _ _859 5 863_21.858 6 862 857 ,,_862 857-,,.s____861__._ ___

24 857 860 856 9 ,3 to_. . _ .858__._:n 856___ _ _ii 861 712 ,-1, 847 854 ,s___ _ _ _ _ _ _

13 860_29_ _ _ ___ ____ _858 14 781__.s o 858 is. _ .852._zi 858 to_861_IM IRl'(IlONS

't '. . , '

.Lf ac tol'l^')798 348

.s.'DOCKET NO.60-116 UNIT SilUTDOWN5 AND POWER REDUCTIONS UNIT NAME Mill onno 2 DATE R/7/79 COMPLETED BY G.H. Howlett REPORT MONT11 July 19 3 TELEPl10NE

'701/447-1741 X364'

.I@~2 4 m-C C, et g-s Licensee 5 *.57 Cause & Corrective m No.Date E.'5 5!3 .g j#33 2 5 3 cc Event~?Ed Action to g Renort #mL u Prevent Recurrence g di {g oO e CC C 7 N.6 790727 F 0 A 4 ti/A HJ PIPE XX Power was manually reduced to 68% to allow the isolation of a Heater Drains

-line leak.

Weld repairs were completec and normal power operations resumed.

l.'Sun:r,a ry :

The ur.it operated at or near full pawer tiiroughout the reporting period except for the power reduction 27th.

.

Docket No.

50-336 Page 1 of 1 Date 8/7/79 Unit Name Millstone 2

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

.CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT Report Month June 1979 DATE SYSTEM COMPONENT MAINTENANCE ACTION 6/13/79 Reactor Coolant

?-RC-252 Loop 1A Spray Header Replaced leaking seal ring.

c3 Molation Valve.

tr3 m 6/13/79 Reactor Coolant 2-RC-253 l oop 1B Spray Header Replaced leaking seal ring.

Isolation Valve.

cc C7'6/14/79 Reactor Coolant 2-RC-405 Pressurizer power Replaced leaking seal ring.

I I'aperated relief isolation valve.. i-.6/19/79 Auxiliary Feedwater Aux Feed Pump P-93 Replaced failed bearing and rebuilt pump.

, 6/19/79 Reactor Protection RPS Ch.'D'Bistable power supply Replaced _+ 15 VDC power supply.

_6/29/79 Non-Radwaste

' A' DC Switchgear Room supply fan Replaced failed bearings Ventilation F-54A..w 0 Docket No.

50-336~.Date: 8/2/79 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 June 28, 1980 3.Schedule date for restart following refueling: August 1, 1980 4.Will refueling or resumption of operation thereafter require a technica' specification change or other license amendment?

Technical Specification changes will be necessary as a result of the change in fuel and safety analysis supplier.

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

The schedule for submitting proposed license action is as follows:

Basic Safety Report 2-1-80 ECCS Results 4 ' 80 Reload Safety Evaluation 5-1-80 6.Important licens;,a 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:

Cycle 4 will be unique in that it will be the first where the fuel and safety analysis will be supplied by Westinghouse.

7.The number of fuel assemblies (a) in the core and (b) in the spent fuel storage pool: (a)In Core: 217 (b)144__8.The present licensed spent fuel pool storage capacity and the size of any increase in licensed stcrage 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, Ne Full, Spent Fuel Pool contains 648 bundles.

798.351