ML19249A282

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Monthly Operating Rept for Jul 1979
ML19249A282
Person / Time
Site: Millstone Dominion icon.png
Issue date: 08/09/1979
From: Young R
NORTHEAST UTILITIES
To:
Shared Package
ML19249A281 List:
References
NUDOCS 7908210552
Download: ML19249A282 (7)


Text

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AVERAGE DAILY UNIT POWER LEVEL 50-245 DOCKET NO.

UNIT Mil 1 stone 1 790809 DATE COMPLETED BY R. Youno 203-447-1792 TELEPIIONE X-4/b MONTH Julv DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) t hiWe-Net) 588 652

,7 2

275 18 650 3

95 19 654 463 4

2c 654 592 3

21 654 6

652 22 654 653 7

23 654 8

24 655 9

653 25 650 654 10 26 A54 27 652 1,

654 28 654

~

654 13 29 652 14 M4 30 653 15 65/.

31 649 654 16 INSTRUCTIONS On this format. fist the average daily unit power !evelin Mwe. Net for each da)'in the repornng intinth. Compute to the nearest whole megawatt.

NOTE: MDC of 654 MWe is based on commitment to New England Po'wer Pool.

10/77)

', is

,1 4 7 9 08 210 0 3 ^

/Y

OPERATING DATA REPORT DOCKET NO.

50-245 DATE 790004 C051PLETED BY R. Youno TELEPHONE 203-44/-l792 X-475 OPERATING STATUS fiilIstone 1 Notes

1. Unit Name:

Ju1y 1979

2. Reporting Period:
3. Licensed Thermal Power IMWt):

2011

4. Nameplate Rating (Gross 51We):

662 660

5. Design Electrical Rating (Net MWe):

684

6. Maximum Dependable Capacity (Gross MWe):

654

7. Maximum Dependable Capacity (Net Slwel:
8. If Changes Occur in Canacity Ratings (items Number 3 Through 7) Since Last Report. Give Reasons:

NA NA

9. Power Level To which Restricted. lf Any (Net MWe):

NA

10. Reasons For Restrictions,if Any:

'Ihis Month Yr.-to.Date Cumularise 744 5,087 76.007.0

11. Hours in Reporting Period
12. Number Of Hours Reactor Was Critical 732 3,294 57,781
13. Reactor Resene Shutdown Hours 0

0 892.

14. Hours Generator On.Line 713.9 3,194.2 5a.514.5
15. Unit Resene Shutdown Hours 0

0 0

16. Gross Thermal Energy Generated iMWH) 1,396,779 6.f32,862 o7.096.I60
17. Gross Electrical Energy Generated tMWH) 476,500 _,

2,052,200 32,857,296

18. Net Electrical Energy Generated (MWH) 466 601 1,952,689 31,371,207
19. Unit Service Factor 96.0 62.8 71.7
20. Unit Asailability Factor 06 0 62.8 71.7
21. Unit Capacity Factor (Using MDC Net) 93.6 58.7 63.1
22. Unit Capacity Factor (Using DER Net) 92.8 58.2 62.5 4.0 10.5 17.5
23. Unit Forced Outage Rate
24. Shutdowns Scheduled Oser Nest 6 Months (Type.Date.and Duration of Eachi:

A ten day outage is tentatively scheduled for the last week in October for en-nlianca

'.f i t h 4RF Rollp*in 79-14

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

NA

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

Forecast Achiesed INITIAL CRITICA LITY NA INITIAL ELECTRICITY COMMERCI \\L OPER ATION (0/77)

l l

UNIT SifUTDOWNS AND POWER REDUC 110NS DOCKET NO.

En W UNIT N AME Millstone 1 DATE 790809 REPORT MLNT11 July COMPLETED BY R.

Youna TELEPilONE 203-44~-1792

/

X-475 l

e.

E c

!E S

j Yl Licensee 5 r,

{g Cause & Corrective No.

Date g

3g

(

,;;; y 5 Event 17 g'3 Action to y5 5

5 iy3 H

Repor x mO Prevent Recurrence c

o g

o O

T O

Q 10 790702 F

30.1 A

3 NA PA Blower Unit was removed from service by y

a reactor low water level scram caused from feedwater reg. valve g

lock-up on loss of both plant air y

compressors. The loss of air was resolved and the unit was returned

.O to service.

    • v

$:s '?

~

F ""

I 2

3 4

J F Forted Reason:

Method:

Exlubit G -Instructions 1'O S: St hed uled A liguipment Failure (Egbin) 14f anual for Preparation of Data ILMaintenance oi Test 2-Manua? Scram.

Entry Sheets for Licensee

( Hefuelir.g 3 Autunnatic Scram.

Event Repois (LER) File (NUREG-N D Regulatory Resirittion 44sther ( E xplain) 01611

-l i Operator Training & I + en se Examination A

I Adnunistrative 5

G Opciational i nor (l% plain).

Exhibit I - Same Source

(')/ 77 )

11 Oiher Il xplain) 1

OPERATING HISTORY July

., 1979:

0250 Hrs. -

Holding reactor pg.;er at 9?' resolving turbine control valve prcble:n.

Juiy 2, 1979:

1118 Hrs. -

Reactor scram en low water level caustd from f eedwater reg. valve lockup on loss of both plant air comprescors.

2051 Hrs. -

Co:r.menced reactor startup af ter correcting air compressor problem.

2.300 !!rs. -

Reactor critical f377, C.C.C. sequence, group 10, rod 10-23, position 26, temperature 360',

period 100 sec.

July 3, 1979:

0240 Hrs. -

Holding recctor power due to station air prob-lems.

1337 Hrs. -

Air problems resolved, increased power.

1645 Hrs.'-

Rolled main turbine.

1723 Hrs. -

flain turbine generatcr on line.

July 4, 1979:

0300 Hrs. -

Holding reactor power at 75t' for l1ain Condenser mussel cook and backwash.

1530 Urs. -

Comp'eted !'ain Condenser cleaning, increased power.

July 5, 1979:

2020 Hrs. -

Reactor power at 1005.

July 11, 1979:

0000 Hrs. -

Reduced reactor power for Turbine Step Valve Testing.

0015 !!rs. -

At 90?,' performed TSVT.

0025 Hrs. -

Completed TSVT, increased ccuer.

0105 Hrs. -

Reactor power at 100?;.

July 25, 1979:

0001 Hrs. -

Decreased reactor power for TSVT.

0027 Hrs. -

At 90;,, ccr enced TSVT.

0035 Urs -

Completed TSVT, bachwashed all condensers.

0122 Hrs. -

Completed backwash, increased reactor power.

0155 Hrs. -

Reactor po,;er at ICT

[

wIww 3

e u MuL

4. 0 g

.REFUtLIrG H!rG:::tt,110:; i:Ecu_r_.S_i..

1

.. -.... " ) ) p e'.". _ _

g-

,m 1.

lL:,ic o f facili ty:

2.

Stheduled cate for next.refueli :9 shutdo.;n:

Fall 1900 3.

Scheduled date for restart fall,owing refueling:

Late Fall 1980 4.

Uill refueling or resuration of operation thereafter require a technical spec': fication change or other license amend.9:ent?

Yes' Technical Specification changes regarding:

(1) lia'i:aca average planar linear heat generating rate.

(2) ikinimum critical po.ter ratio.

5.

Schoduled dete(s) for subtr.itting proposed licensii.9 act-icn and supporting' in forma tion :

/

Sumer 1980 G.

Ir.pariant licensing considerations asscciated t ith refue' ling, e.g., new or different fuel design or supolier, unrevict:cd design or performance analysis sathods, significant changes in fuel design, new opereting procedures:

20') to 250 pending reload analysis for 18 nonth operating cycle.

7.

The number of fu21 assetSiics (a) in the. core and (b) in ti;e spent fuel storage pool :

(a) In Core:

399 (b) In SFP:

8.

The present licensed spent fuel poal storaq.e capacity and the size of an.y in -

cr vu-i n l i ce r,.:d s i:.cm cc oa c i ty th a t. h e ' be'n reo "; M ' :.r i n p i a nnH in

r. -

0... of fu.!

.ce;:,..:

2180 asse.:blies 9.

The projected tiate of the last refueling that can be discharged to the spent feel pool assu:ning the precent licensed capacity:

u.*.,, b e

Le

Docket No.

50-245 Pace 1 of 2

~

Date 790810 Unit Name Millstone i Completed By R. Young Telephone 203-447-1792 X!475 CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT Report Month July DATE SYSTEM COMP 0NErfT lMINTENANCE ACTION 790516 feedwater R.F.P. Recirc. Vlvs. 1-FW-14A,B,C Replaced discs and seats 790516 Feedwater Air Operato.- 1-FW-14B Replaced piston 'O' rings 790517 L.P.C.I.

"A" L.P.C. I. Heat Exchanger Rebuilt head covers 790524 Core Spray 1-CS-5A Machined wedge guides 790524 Gas Turbine Lube Oil Filter Fabricated new cover plate 190525 Control Rod H. C. U. 18-15 Replaced seat and accumulator Drive Hyd.

790621 Reactor Bldg.

"B" Heat Exchanger Plugged one tube Closed Cooling.

Water 790528 Atmosphere 1-AC-7 4 1-AC-9 Rebuilt air actuators Control 790630 Shu tdown 1-SD-4A & 4B IMchined discs and seats Cool ing

/90531 Reactor Bldg.

"B" Heat Exchanger Plugged 6 tubes Clcsed Cooling Water 790503 Diesel Gen.

Generator Dried out microswitch

'{ 790511 4100 VAC 18 Reactor Feed Pump Breaker Cleaned end bushing j

4# 793519 rondensate 1B Co,ndensate Pump Cleaned and inspected

Docket No.

50-245 Page 2 of 2 Date 790810 Unit Name Millstone 1 Completed By R.

Youno Telephone 203-447-1792 X-475 CORRECTIVE MAINTENANCE SUfe1ARY FOR SAFETY RELATED EQUIPMENT Report Month July DATE SYSTEM COMPONENT MAINTENANCE ACTION 790525 Control Rod Scram Solenoid #118 IICU 26-03 Replaced coil Drive Hyd.

790526 L.P.C.I.

1-LP-16A Replacci Sousing 790620 Atnosphere 1-AC-8 Operator Replaced 'O' rings and seals Control 790621 Control Rod Accumulator for 50.'7 Replaced accumulator Drive liyd.

790622 Service Llater "C" Service Water Pump Installed new lower shaf t and bearings 790622 Control Rod Accumulator 10-11 Replaced accumulator Drive Ilyd.

i 790624 Shutdown Cooling 1-SD-4A flotor Moved wire inside motor 790625 Fmer9ency Service "B" E.S.W.. Pump Straightened shc.f t and replaced impeller lla ter 790702 Diesel Generator Lube Oil Pressure Annunciator Replaced with new switch 790702 Atmosphere 1-AC-9 Solenoid Cleaned and tested Control

~

790/2/

Atnosphere 1-AC-12 Operator Disassembled, cleaned operator internals, Control reassembled 790727 Feedwa ter "B" Reactor Feed Pump Disassembled, replaced mech. seal, reassembled 790/2/

Feedwater "B" Reactor Feed Pump Disc.

Repaired seat ring gasket area and installed Check' Valve new seal ring

.