ML20009D146

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Monthly Operating Rept for June 1981
ML20009D146
Person / Time
Site: Dresden  Constellation icon.png
Issue date: 07/02/1981
From: Maxwell D
COMMONWEALTH EDISON CO.
To:
Shared Package
ML20009D145 List:
References
NUDOCS 8107230224
Download: ML20009D146 (30)
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Text

..

OPERATING DATA REPORT 00CKET NO. 050-010 DATE_ J,uly 2, 1981 COMPLETED BY D. C. Maxwell TELEPHONE (815) 942-2920 X-550 OPERATING STATUS NOTES i

1.

Unit Name: Dresden I

{

2.

. Reporting Period: June, 1981 l'

3 Licensed Thermal Power (MWt):

700 j{

4.

Nameplate Rating (Gross MWe):

209 i,

S.

Design -Electrical Rating (Net MWe): 200 lI 6.

Maximum Dependable Capacity (Gross MWe): 205 j

7 Maximum Dependable Capacity (Net MWe):

197 1

1 8.

if Changes Occur in Capacity Ratings (items 3 Through 7) Since Last Report, Give Reasons:

N/A 9

Power Level to Which Restricted, if Any (Net MWe): N/A-

10.. Reasons For Restrictions, if Any: N/A

-~

This Month Yr-to-Date Cumulative 11.

Hours in Reporting Period 12.

Number of Hours Reactor Was Critica' 13 Reactor Reserve Shutdown Hours 14.

Hours Generator On-Line 15 Unit Reserve Shutdown Hours 16.

Gross Thermal Energy Generated (MWH)

(( A-y -

I1 ;,

j',;

17 Gross-Electrical Energy Generated (MWH)

(

18.

Net Electrical Energy Generated (MWH)

VO J

~ C A--.0.

l 20.

Uni t Availabil i ty Factor '

hg g-.

5 l

19 Unit Service Faccor

21. ' Unit Capacity Factor (Using MOC Net)

UU

.[L l-22.

Unit Capacity Factor (Using DER Net) 3 3.'

Unit Forced Outage Rata 24.-- Shutdowns Scheduled Over 'fext 6 Months (Type, Date, and Ouration of Each):

N/A t

t l

25 If Shut Down At End Of Recort Period, Estimated Date of Startup: Extended Modification Outage - Shutdown Until June, 1986 l

f.

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i f

i 8107230224 810708 DR ADOCK 05000010 l

PDR I

OPERAYING DATA REPOPT-00CXET NO. 050-237 D ATE July 2,1981 COMPLETED BY D. C. Maxwell p

-TELEPHONE (815) 942-2920 10PERATING STATUS-NOTES

1. ' Unit;:bme:,_prenden II

'2b Reportic-

' bod : June. 1921

.3 Licensed LTnermal Power (MWt): 2,527 4.:1N3meplate: Rating (Gross MWe):

828 5

Design Electrical Rating (Net MWe): 794-6.

Maximum Dependable Capacity (Gross MWe): 812

7. ; Maximum Dependable capacity. (Net MWe):

772 8.

.lf. Changes Occur in Capacity Ratings (items 3 Through 7) Since Last Report, Give-Reasons:

N/A 9

Power Level,to Which Restricted, if Any (Net MWe): N/A 10.

Reasons For Restrictions, If Any: N/A This honth Yr-to-Date Cuculative.

II.

Hours in Rcporting Period 720 4.343 97,583

.12.

Number of Hours Reactor Was Critical 680.0_,

1.278.2 74,416.1 13 Reactor' Reserve Shutdown Hours 0

0 0

14. -Hours Generator On-Line 667.7 1.213.7 70,673.7

.15 Unit. Reserve Shutdown Hours 0

0 0

16.

Gross Thermal Energy Generated (MWH) 1.114.821 1.944.702 139.242.758 17 Gross Electrical Energy Generated (MWH) 336.215 584.478 44.457.341

18.. Net Electrical Energy Generated- (MWH) 317.667 538,663 42,007.662 l

19 Unit Service Factor 92.7 27 3 72.4

20.. Unit Availability Factor 92.7 27.9 72.4 21.

Unit Capacity Factor (Using MDC Net) 57.2 16.1 55.8

-22.

Unit Capacity Factor (Using DER Net) 55.6 15.6 54.2

'23 Unit Forced Outage Rate 7.3 5.0 12.4

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

' 2 5.'

If Shut Down At End Of Report Period, Estimated Oate of Startup-7-3-81 1

1 OPERATING DATA REPORT DOCKET NO. 050-249 T2 OATE July 2,1981 COMPLETED BY D. C. Maxwell TELEPHONE (815) 942-2920 OPERATING 1 STATUS NOTES 1.

Unit'Name: Dresdeu III 2.

Reporting Pericd:

June, 1981 3

Licensed Thermal. Power (MWt): 2.527 4.

Nameplate Rating (Gross MWe):

828 5

Design Electrical Rating (Net MWe): 794

' 6.

Maximum Dependable Capacity (Gross.MWe) : 812

~ 7. ; Maximum Dependable Capacity (Net MWe):

773 8.

If Changes Occur. In Capacity Ratings (items 3 Through 7) Since Last Report, Give

. Reasons:

-N/A 3

Power Level to Which Restricted, If Any (Net MWe):

N/A 10.

Reasons For Restrictions, if Any:

N/A This Month Yr-to-Date Cumulative.

- 1 1.

Hours in-Reporting Period 720 4.343, 87.168 12.

Number of Hours Reactor Was Critical 720.0 4.270.1 66.557.0 13 Reactor Reserve Shutdown Hours 0

0 0

14.

Hours Generator On-Line 720.0 4.233.0 63.866.3 15 Unit Reserve Shutdown Hours 0

0 0

16.

Gros's Thermal Energy Generated (MWH) 1.654.016 9.868.693 126.353.163 17

. Gross Electrical Energy Generated (MWH) 528.385 3.204.396 41.204.964

~18.

' Net Electrical Energy Generated (MWH) 503.226 3.053.404 39.076.304 19.

Unit Service Factor

20.. Uni t Availabil ity Factor 100.0 97.5 73.3 100.0 97.5 73.3 21.

Unit Capacity Factor (Using MDC Net) o0.4 91.0 58.0 122. ' Unit Capacity Factor (Using DER Net) 88.0 88.5 56.5

23. -Unit Forced Outage Rate 0

1.1 14.4 24.

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

N/A 25 If Shut Ocwn At End Of Report Period, Estimated Date of Startup:

N/A e

5 i

g a

AVERAGE DAILY UNIT POWER LEVEL-DOCKET NO. 050-010 UlliT Dresden I DATE July 2, 1981 COMPLE 10 SY D. C

;4xwe ll.

TELEPHONE (815) 942-2920

~

-MONTH JUNE', 1981 OAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 0

17 0

2 0

18 0

3 0

19 0

4 0-20 0

5 0

21 0

6 0

22 0

7 0

23 0

8 0

24 0

9 0

25 0

l 10 0

26 0

l l

11 0

27 0

l l'

12 0

28 0

j._

. 13 0

29 0

l 14 0

30 0

~ 15 0

31 16 0

1.

l

{

r i

..m.. -

AVERAGE. DAILY UNIT POWER LEVEL 1

DOCKET NO. 050-237 i

UNIT Dresden II DATE July 2,1981 COMPLETED BY D. C. Maxwell TELEPHONE (815) 942-2920 MONTM

-JUNE, 1981 DAY AVERAGE DAILY PCWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 333 17 724 2-313 18 677 3_

320 19 751 4

322 20 628 5

317 21 685 6

321 22 677 7

317 23 777 3

318 24 778

'g 336 25 765 344 10 26 607

-11 349 27 695 12 335 28 643 13 86 29 483 i

14 0

30 276 l

15 273 3i l

16 557 t

i

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 050-249 UlllT Dresden III DATE July 2, 1981 COMPLETED BY D. C. Maxwell,

TELEPHONE (815) 942-2920 MONTH JUNE, 1981 DAY AVERAGE DAILY P0bER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net)

I' 747 17 742

=2 758 13 799 3

3 771 19 754 4

793 20 796 5

733 21 701 6

785 22 701 7

658 23 793 8

748' 24 715 9

763 25 750 1

10 781 26 776 11 788 27 655 768 28 417 12 13 734 29 578 14 770 30 673 15

4 31 t

16

,.5 I

O I

DOCKET NO. 050-010 UNIT NAME Drct+dzn I UNIT SHUTDOWNS AND POWER REDUCTIONS DATE July 2.

1981 COMPLETED BY D. C. Maxuall' TELEPHONE (815) 942-2920

. REPORT HONTH' JUNE, 1981 1

'HETHOD OF

' LICENSEE CAUSE'& CORRECTIVE NO.

DATE TYPEI DURATION REASO:12 SHUTTING EVENT SYSTEM COMPONENT ACTION.TO

-(HOURS)

DOWN REACTOR 3 REPORT #

CODE 4 CODES PREVENT RECURRENCE

~

8 781031 S

720 C

3 Refueling turbine overhaul &

chemical cleaning outage.

F: Forced Reason:

Method:

Exhibit G-Instructions for S:

Scheduled A-Equipment Failure (Explain) 1-Hanual Preparation of Data Il-Haintenance of Test 2-Manual Scram Entry Sheets for Licensee G-Refueling 3-Automatic Scram svent Report.(

) File D-Regulatory Restriction 4-Other (Explain)

(NUREG-0161)

E-Operator Training & License Examination F-Administrative G-Operational Error ll-Other (Explain)

. UNIT NAME_Dresden'II

' UNIT SilHTDOWNS AND POWER REDUCTIONS -

- DATE July 2.-1981' COMPLETED BY D. C. ' hrweI l' i

TELEPilONE (815) 942-2 4 ']'

.1, REPORT HONTil JUNE. 1981-l

/

HETHOD OF LICENSEE-

..CAUSE-& CORRECTIVE NO.

DATE TYPEI DURATION REASON 2 SHUTTING

.3 REPojLT C CODE 4 CODES PREVENT' RECURRENCE.

EVENT JYSTEM.. COMPONENT ACTION TO (llOURS)

DOWN REACTOR

/

/

a 3

810613 F

50:22 11

  • 3
  • Lightning' caused in-house 1

electricat problems -'being in-4 vestigated by.SBED, I

4 810630 F

1:58 C

1 Operator tripped recire. pump j

while adjusting flow.

h i

I i;

4 i

1

)

v.

4 3

a f

4 i

I 1

2 3

4 l

F:

Forced Reason:

Hethod:

Exhibit C-Instructions for

}

S:

Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data B-Haintenance of Test 2-Manual Scram Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (

) File l

D-Regulatory Restriction 4-Other (Explain)

(NUREG-0161)

E-Operator Training & License Examination l

F-Administrative i

G-Operational Error ll-Other (Explain) 0

DOCKET NO.' 050-249 UNIT NAhE Drp'-d - a III UNIT SHUTDOWNS AND POWER REDUCTIONS-DATE July-2, 1981 COMPLETED BY D. C. Maxwell TELEPHONE (815) 942-2920-REPORT MONTil JUNE, 1981 METil0D OF

' LICENSEE CAUSE & CORRECTIVE NO.

DATE TYPEI DURATION REASON 2 SHUTTING EVENT SYSTEM COMPONENT ACTION TO:

(HOURS)

DOWN REACTOR 3 REPORT #

CODE 4 CODES PREVENT. RECURRENCE 1

2 3

4 F:

Forced Reason:

Method:

Exhibit C-Instructions for S:

Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data ll-Maintenance of Test 2-Manual Scram Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (

) File D-Regulatory Restriction 4-Other (Explain)

(NUREC-0161)

E-Operator Training & License Examination F-Administrative G-Operational Error li-Other (Etplain)

DRESDEN. UNIT 2 SAFETY RELATED HAINTENAllCE.- JUNE,1981 IlATURE OF LER OR OUTAGE HALFUNCTION-

~-

EQUIPitENT MAlllTENANCE HUMBER -

CAUSE RESULT CORRECTI'JE ACTION -

CRD S/N 54 Preventive WR #7106 N/A N/A-Replaced with CRD 8960.-

CRD S/N 6205 Preventive WR #2751

'N/A N/A Replaced with CRD 1053.

CRD S/N 6567 Preventive WR #7108 N/A N/A Replaced with CRD 751.

CRD S/N 725C Preventive WR #5294 N/A N/A Replaced with CRD 5758.

CRD S/N 79 Preventive WR #2750 N/A N/A Replaced with CRD 6458.

N/A N/A Replaced with CRD 254.

CRD S/N 973 Preventive WR #2747 CRD S/N 96 Preventive WR #10330 N/A N/A Replaced with CRD 62.

CRD S/N 753C Preventive WR #9977 N/A N/A '

Replaced with CRD 5690.

CRD S/N 905 Preventive WR #5285 N/A N/A Replaced with'CRD 390C.

~

CRD S/N 6452 Preventive WR #7104 N/A N/A Replaced with CRD 6362.

CRD S/N 1048 Preventive WR #5282 N/A N/A Replaced with CRD 1.

CRD S/N 516C Preventive WR #8703 N/A N/A Replaced with CRD 6514.

Replaced 'ith CRD 947.

CRD S/N 6285 Preventive WR #1519 N/A N/A w

CRD S/N 427 Preventive WR #610 N/A N/A Replaced with CRD 229A.

CRD S/N 6336 Preventive WR #7102 N/A N/A Replaced with CRD 998.

CRD S/N 6348 Preventive WR #2749 N/A N/A Replaced with CRD 5603.

CRD S/N 708C Preventive WR #614 N/A N/A Replaced with CRr 255.

CRD S/N 1057 Preventive WR #1522 N/A N/A Replaced with CRD 295.

CRD S/N 568C Preventive WR #9979 N/A N/A Replaced with CRD 27.

O' DRESDEN UNIT 2 SAFETY RELATED MAINTENAllCE - JUNE, 1981 NATURE OF LER OR OUTAGE MALFUNCTI0tt-EQUlPMENT MAlllTENAllCE HUMBER CAUSE RESULT CORRECTIVE ACTI0tt CRD S/N 953 Preventive WR #2743 N/A N/A' Replaced with CRD 5637.

CRD S/N 710C Preventive WR #10328 N/A N/A Replaced with CRD.970.

CRD S/N 39 Preventive WR #5300 N/A N/A Replaced with'CRD 588.

CRD S/N 254 Preventive WR #10700

.N/A N/A R.eplaced with CRD 660C.

N/A N/A Replaced with CRD 570C.

CRD S/N 1024 Preventive WR #5299

+

CRD S/N 8 Preventive WR #609 N/A N/A Replaced with CRD 958.

CRD S/N 1 Preventive WR #5286 N/A N/A Replaced with CRD 979.

CRD S/N 998 Preventive WR #10691 N/A N/A Replaced with CRD 710C.

CRD S/N 6391 Preventive WR #10694 N/A N/A Replaced with CRD 6167.

CRD S/N 616C Preventive WR #616 N/A.

N/A Replaced with CRD 516.

CRD S/N 6226 Preventive WR #9023 N/A N/A Replaced with CRD 490C.

CRD S/N 930 Preventive WR #10693 N/A N/A Replaced with CRD 553C.

CRD S/N 124 Preventive WR #608 N/A N/A Replaced with CRD 2248.

CRD S/N 553C Preventive WR #2744 N/A N/A Replaced with CRD 2767.

CRD S/N 688C Preventive WR #10697 N/A N/A Replaced with CRD 6285.

CRD S/N 95 Preventive WR #1069')

N/A N/A Replaced with CRD 6310.

CRD S/N 62 Preventive.WR #10698 N/A N/A Replaced with CRD 6438.

CRD S/N 6454 Preventive WR #9068 N/A N/A Replaced with CRD 587C.

CRD S/N 27 Preventive WR #2742 N/A N/A Replaced with CRD 2F.

l

DRESDEN. UNIT-2 '

SAFETY RT 'ATED MAINTEllAllCE.- JUNE, 1981 NATURE OF LER OR OUTAGE HALFUNCTION EQUIPMENT MAlllTENANCE NUMBER CAUSE-RESULT-CORRECTIVE ACTI0tt CRD S/N 1869 Preventive WR #9975 N/A N/A Replaced with CRD 3274.

CRD S/N 6328 Preventive WR #7096 N/A N/A R'eplaced with CRD 982.

CRD S/N 43 Preventive WR #5284 N/A N/A Replaced with CRD 887A.

CRD S/N 773C Preventive WR #8699 N/A N/A Replaced with CRD 301.

CRD S/N 266 Preventive WR #8701 N/A N/A Replaced with CRD 297.

N/A N/A Replaced with CRD 5715.

CRD S/N 134 Preventive WR #5289 CRD S/N 397 Preventive WR #2740 N/A N/A Replaced with CRD 101.

CRD S/N 679C Preventive WR #2741 N/A N/A Replaced with CRD 6509.

CRD S/N 6228 Preventive WR #2745 N/A N/A Replaced with CRD 7098.

CRD S/N 109')

Preventive WR #611 N/A N/A Replaced with CRD 8793.

CRD S/N 101 Preventive WR #1517 N/A N/A Replaced with CRD 1086.

CRD S/N 202C Preventive WR #5288 N/A N/A Replaced with CRD 21.

CRD S/N 762C Preventive wR #5291 N/A N/A Replaced with CRD 1078.

CRD S/N 590 Preventive WR #1518 H/A N/A Replaced with CilD 299.

CRD S/N 1045 Preventive WR #9973 N/A N/A Replaced with CRD 6188.

CRD S/N 856 Pieventive WR #5283 N/A N/A Replaced'with CRD 6101.

CRD S/N 59 Preventive WR #606 N/A N/A Replaced with CRD 1099.

CRD S/N 45 Preventive WR #1516 N/A N/A Replaced with CRD 896.

CRD S/N 1213 Preventive WR #7094 N/A N/A Replaced with CRD 958.

)

DRESDEN. UNIT 2 SAFETY RELATED MAlHTENANCE. - JUNE,1981 NATURE OF LER On OUTAGE HALFUNCTION-EQUIPltENT MAltlTENAt1CE NUMBER CAUSE RESULT CORRECTIVE ACTICl4 CRD S/N 229A Preventive WR #7098 N/A N/A Replaced with CRD 2.

CRD S/N 738C Preventive WR #612 N/A N/A Replaced with CRD 735C.

CRD S/N 7200 Preventive WR #5 F8 hl/A N/A~

Replaced with CRD 78.

CRD S/N 252 Preventive WR #7324 N/A N/A' Replaced with CRD 3397.

CRD S/N 1247 Preventive WR #10329 N/A N/A Replaced with CRD 590.

CRD S/N 660C Preventive WR #7326 N/A N/A Replaced with CRD 5739.

CRD S/N 760 Preventive WR #5293 N/A N/A Replaced with CRD 588C.

CRD S/N 689C Preventive WR #7092 N/A N/A Replaced with.CRD 6008.

CdD S/N 255 Preventive WR #9970 N/A N/A Replaced with CRD 608C.

CRD S/N 108 Preventive WR #2752 N/A N/A Replaced with CRD 1048.

CRD S/N 883 Preventive WR #607 N/A N/A Replaced with CRD 266.

CRD S/N 580C Preventive WR #10701 N/A N/A Replaced with CRD 700C, CRD S/N 81 Preventive WR #10692 N/A N/A Replaced with CRD 1869.

CRD S/.1 8793 Preventive WR #12915 N/A N/A Replaced with CRD 883.

2A CCSW Pump Preventive WR #4670 (1 #79)

N/A N/A Repacked; cleaned &

Discharge Valvt greased stem.

R:t Mode Switch Preventive WR #920 (19: 9)

N/A N/A Replaced switch.

480V Safety Re-Preventive WR #4129 (1918)

N/A N/A Replaced contacts to com-i ply with I.E. Bull 78-05.,

lated Contactor 3

A FW Manual Iso 7 Preventive WR #13035 N/A N/A Tightened packing.

lation V1v 2-220-57A

. ti,.1 w

DRESDEN UNIT 2 SAFETY RELATED MAINTENANCE - JUNE, 1981 HATURE OF LER OR OUTAGE _

MALFUNCT10ti-i EQUIPltENT MAltlTENANCE NUMBER

.CAUSE RESULT CORRECTIVE ACTION CRD llatch Preventive WR #9181 N/A N/A Closed hatch-for LLRT.

A0 1601-60 Preventive WR.#13180 N/A N/A Rebuilt per repair kit.

A0 1601-23 Preventive WR #13159 N/A N/A Rebuilt per repair kit.

l lIPCI Drain Pot Preventive WR #13163 N/A-N/A Replaced air diaphragm Viv. 2301-31 6'D-ring.

l Scram Inlet Preventive WR #13244 N/A N/A Tightened one turn.

j Valves at 38-11

& 42-51 Scram Inlet Preventive WR #13198 N/A N/A Tightened to prevent leak.

Valves at 42-51 6 22-51 Diesel Cencra-Preventive LR #11910 N/A N/A Installed & calibrated i

tor new pressure switch.

203-2C Pilot Preventive WR #13390 N/A N/A Replaced T/C j!

Thermocouple 1

A0 1501-25A Corrective WR #13215 Piston Cup On Valve Inoperable Installed new piston cup.

Air Operator Inoperable FW Check Valve Preventive WR #11363 N/A N/A Replaced valve.

I 220-58B 2D LPCI Pump Preventive WR #8657 N/A N/A Inspected cooling water lines & recalibrated flow switch.

I Drywell Person-Preventive WR #9173 N/A N/A Inspected gaskets for nel & Equip.

LLRT.

Doors u

DRESDEN. UNIT 2-SAFETY RCLATED HAINTEllAllCE - JUNE,1981 NATURE OF LER OR OUTAGE HALFUNCTION-MAlflTENAtlCE NUMBER CAUSE RESULT CORRECTIVE ACT10N EQUlhMENT Prescure Indi-Preventive WR #13158 Foreign Material Valve Inoperable Cleaned & tightened cator at Pene-Holding Stem Ope.

packing.

tration 204S Drywell Vent Preventive WR #11279 N/A N/A Replaced valve.

Valve 2-1601-2 1 2B LPCI Ileat Preventive WR #11428 N/A N/A Tube cleaning & plugging.

Exchanger A0 2-1601-63 Preventive WR #13131 N/A N/A Checked, cleaned & re-installed.

Shutdown Cool-Preventive WR #13036 N/A N/A

' Tightened packing, ing Inlet Valv :

MO 1001-1A Recirc. System Preventive WR #12994 N/A N/A Tested per S0P 81-4-41.

for Valve Logi :

for MG Sets A0 2-1601-60 Preventive WR #12824 N/A N/A Installed new valve.

Rx Target Rock Preventive WR #9176 N/A N/A Repaired steam leak Valve damage &' reinstalled.

B LPCI Insp.

Preventive WR #12162 N/A N/A Inspected per DMP 6700-3.

Pump Breaker CRD 02-35 Scran-Corrective WR #12118 Nuts Holding Coils Air Leak Repositioned & tigltened.

Solenoid Valve Caught Under Name-plate MSIV 2-203-2B Preventive WR #11112 N/A N/A RepackeJ valve.

S/N 2410 Accum.

Preventive WR #13137 N/A N/A Replaced with S/N 2437.

26-07

DRESDEN UNIT 2 SAFETY RELATED.HAINTENANCE - JUNE,1981 NATURE OF LER OR OUTAGE HALFUNCTION-EQUIPltENT.

HAlllTENANCE NUMBER CAUSE RESULT

CORRECTIVE ACTION-Scram Inlet Preventive WR #13183-N/A.

N/A-Adjusted stroke to pre-Valve at Accum vent leakage.

54-23 Scram Inlet Preventive WR #13196 N/A N/A Adjuated stroke to pre-Valve at Accum vent leakage.

26-03 Inst. Flow Preventive WR #13201 N/A N/A Low leakage limit; tested Checks 263 & adjusted.

42B, 2-31d, 2-31W, 2-20C Scram Inlet Preventive WR #13199 N/A N/A Adjusted to prevent leak.

Valve at Accum 50-43 FW Check Valve Preventivo WR #11361 N/A N/A Faile'd LLRT; tested &

2-220-62A reinstalled.

IIPCI 2301-10 Preventive WR #13302 N/A N/A Tightened packing leak.

IIPCI Oil P Preventive WR #13389 N/A

'N/A Cleaned filter elements.

Alarm DG Continuous Corrective WR #13680 Motor Windings 0 pen Inoperable & Trips Replaced motor.

Lute Oil Pump

& Shorted Breaker IRM Ch. 16 Preventive WR #5721 (1 980)

N/A N/A Replaced extension cable

& connector.

Torus Safety Preventive WR #11914 N/A N/A Functionally tested'all Related Valves safety relief valves.

Rx Cleanup Demi a Preventive WR #12163 N/A N/A Performed breaker in-Ptm Breaker spection.

l l _. _.

m s

DRE' SDEN. UNIT 2 SAFETY RELATED MAINTENANCE - JUNE,1981 NATURE OF LER OR OUTAGE HALFUNCTION EQUIPHErT MAlilTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION Electromatic Preventive WR #8972 (1 #80)

N/A

,N/A Inspected, bench tested,

& reinstalled, Operators CRD S/N 947 Preventive WR #5290 N/A N/A Replaced with CRD 39.

CRD S/N 7000 Preventive WR #2754 N/A N/A Replaced with CRD 6484.

CRD S/N 390C Preventive WR #5296 N/A N/A Replaced with'CRD 43, CRD S/N 78 Preventive WR #615 (19 '9)

N/A N/A Replaced with CRD 8.

a CRD S/N 2 Preventive WR #5281 N/A N/A Replaced with CRD 1064.

CRD S/N 106 Preventive WR #1521 (1179)

N/A N/A Replaced with CRD 3250.

CRD S/N 752 Preventive WR #7328 N/A N/A Replaced with CRD 30.

CRD S/N 608C Preventive WR #1523 (1479)

N/A N/A Replaced with CRD'o2.

CRD S/N 1032 Preventive WR #2748 (1479)

N/A N/A Replaced with CRD 6348.

CRD S/N 570C Preventive WR #5287 N/A N/A Replaced with CRD 106.

CRD S/N $87C Preventive WR #1525 (l' i?9)

N/A N/A Replaced with CRD 6228.

CRD S/N 272 Preventive WR #7090 N/A N/A ReplacedwithCRD8h9.

CRD S/N 1053 Preventive WR #1524 (l'i?9)

N/A N/A Replaced with CRD 1829.

CRD S/N 6258 Preventive WR #613 (19' 9)

N/A N/A Replaced with CRD 4776.

LRD S/N 9 Preventive WR #5297 N/A N/A Replaced with CRD 6032, 2-202-73 Preventive WR #13190 N/A N/A Tightened packing.

E IIPCI MO 2301-4 Preventive WR #13032 N/A N/A Tightened packing.

2-202-98 I Preventive WR #13187 N/A N/A Tightened packing.

2

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t DRESDEri UNIT 2 SAFETY RELATED HAINTENAllCE - JUNE,1981 I

MALFullCTI0ti-LER OR OUTAGE NATURE OF e

EQUIPitENT MAlllTENA!!CE NUMBER CAUSE RESULT CORRECTIVE ACTIO!4 CRD Support Preventive WR #8761 N/A N/A Remove steel for CRD removal & reinstall after Steel CRD change-out.

2B LPCI Heat Preventive WR #11889 N/A N/A Replaced 492 tubes, plugged 41.

Exchanger CRD S/N 1533 Preventive WR #10711 N/A N/A Reisuilt.

CRD S/N 568C Preventive WR #9978 N/A N/A Rebuilt.

CRD S/N 81 Preventive WR #10703 N/A N/A Rebuilt.

CRD S/N 134 Preventive WR #5307 N/A N/A Rebuilt.

CRD S/N 79 Preventive WR #2756 (1979)

N/A N/A Rebuilt.

CRD S/N 1045 Preventive WR #99/2 N/A N/A Rebuilt.

CRD S/N 720C Preventive WR #5311 N/A N/A Scrapped for parts.

~

CRD E-8(18-31)

Preventive WR #13965 N/A N/A Rebuilt scram swienoids.

Scram Valve Pilot Solenoid CRD P-10(54-39 Preventive WR #13990 N/A N/A Rebuilt scram solenoids.

Scram Valve Pilot Solenoid CRD M-14(46-55 Preventive WR #14039 N/A N/A Replaced diaphragm gasket.

CRD Spares 974, Preventive WR #12614 N/A N/A Leak tested; rebuilt CRD's.

6454, 883, 6228 753C, 272 Accum. 54-15 Preventive WR #13746 N/A N/A Replaced accumulator.

1

l ORESDEN UNIT 2 SAFETY RELATED HAINTENANCE - JUNE,1981 NATURE OF LER OR OUTAGE HALFUNCTION-EQUIPMENT MAlllTENAllCE NUMBER CAUSE RESULT

. CORRECTIVE ACTION 1124 Cable Pan Preventive WR #13763 N/A N/A Repaired damaged insula- _

2RB-40 in llPCI tion on cables.

hPCt imergency Preventive WR #13982 li/A N/A Hotor meggered & checked.

Oil Pump LPCI Ileat Ex-Preventive WR #7521 N/A N/A Replaced bellows, changer P Alarm Switch MSL P Cauge Preventive WR #13563 N/A N/A Replaced meter movement 261-2N

& calibrated switch.

Accum. Pressurt Preventive WR #13328 N/A N/A Checked - found ok.

Alarm 02-35 CRD S/N 946 Preventive WR #2763 (15 79)

N/A N/A Rebuilt.

CRD S/N 620 Preventive 'IR #9028 N/A

.4/A Rebuilt.

CRD S/N 632B Preventive WR #7097 N/A N/A Rebuilt.

CRD S/N 679C Preventive WR #2761 (11 79)

N/A N/A Rebuilt.

CRD S/N 725C Preventive WR #5312 N/A N/A Rebuilt.

CRD S/N 953 Preventive WR #2764 (IS 79)

N/A N/A Rebuilt.

CRD S/N 252 Preventive WR #7323 N/A N/A Rebuilt.

CRD S/N 6454 Preventive WR #9067 N/A N/A Rebuilt.

CRD S/N 973 Preventive WR #2765 (19 79)

N/A N/A Rebuilt.

CRD S/N 1027 Preventive WR #1534 (1979)

N/A N/A Rebuilt.

CRD S/N 6452 Preventive WR #7105 N/A N/A Rebuilt.

+

u DRESDEN UNIT 2 SAFETY RELATED t1AINTENANCE - JUNE, 1981 IJATURE OF LER OR OUTAGE HALFUNCTlott EQUIPliENT HAlllTENANCE NUNDER CAUSE RESULT.

CORRECTIVE ACTION CRD S/N 1024 Preventive WR #5319 N/A N/A Rebuilt.

CRD S/N 760 Preventive WR #5313 N/A N/A Rebuilt.

CRD S/N 9 Preventive WR #5303 N/A N/A Rebuilt.

CRD S/N 6258 Preventive WR #627 (19 '9)

N/A N/A Rebuilt.

CRD S/N 427 Preventive WR #621 (19'9)

N/A N/A Rebuilt.

N/A N/A Rebuilt.

CRD S/N 930 Preventive WR #10709 4

CRD S/N 6540 Preventive WR #9026 N/A N/A Rebuilt.

CRD S/N 580C Preventive WR #10707 N/A N/A Rebuilt.

I CRD S/N 962 Preventive WR #12437 N/A N/A' Rebuilt.

I CRD S/N 6391 Preventive WR #10712 N/A N/A Rebuilt.

I CRb S/N 1213 Preventive WR #7095 N/A N/A Rebuilt.

CRD S/N 95 Preventive WR #10704 N/A N/A Rebuilt.

CRD S/N 6540 Preventive WR #9025 N/A N/A Replaced with drive.905.

CRD S/N 272 Preventive WR #7091 N/A N/A Rchuilt.

CRD S/N 620C Preventive WR #9027 N/A N/A Replaced with CRD 6327.

CRD S/N 6127 Preventive WR #12636 N/A N/A.

Rebuilt.

CRD 42-19(L-5)

Preventive WR #14191 N/A N/A Changed seat discs &

gaskets.

Accum 22-47 Preventive WR #13954 N/A N/A Replaced fitting on N2 (F-12) block charging nipple.

k

j.

. DRESDEN. UNIT 2 SAFETY RELATED MAlHTENANCE.- JUNE, 1981 NATURE OF-LER OR OUTAGE HALFUNCTION-EQUIPMENT HAlllTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION Accum 22-47 Preventive WR #3953 N/A N/A Repacked star valve on.

(F-12)

N2 block.

B Electromatic Preventive WR #13650 N/A N/A Tested sensor &

Acoustical replaced.

Monitor llPCI Lo Filter Preventive WR #13765 N/A N/A Cleaned elements.

IIPCI 3 Valve Preventive WR #13981 N/A N/A Replaced flange & in-Disc stalled new flex gasket.

D Relief Valve Preventive WR #14011 N/A N/A Replaced defective

' alarm unit.

Acoustic Honitor CRD Scram Preventive WR #14162 N/A N/A Adjusted valves on CRD's Valves D-4(14-15), F-7(22-27),

H-1(30-03).

Electromatic Preventive WR #14181 N/A N/A Changed breakers 2, 3, R/V Discharge 5;. realigned 1, 4.

Pump Vacuum Breakers i

SBLC 2A Squib Preventive WR #14116 N/A N/A Replaced' bulb on meter Valve Mon.

light for fail alarm, i

l 2A RPS HG Preventive WR #14112 N/A N/A Replaced thermal over-load heaters.

1601-32D Vac.

Preventive WR #14091 N/A N/A Tested - found ok.

l Breaker Switch llPCI Aux. Oil Preventive WR #14046 N/A N/A Checked per DHP 8300-3.

i l

Pump Starter l

i IIPCI Aux. Oil Preventive WR #13977 N/A N/A-Installed motor &

Pump checked.

~ '-- -

DRESDEN UNIT 3 SAFETY RELATED HAlNTENANCE - JUNE, 1981 4

NATURE OF LER OR OUTAGE I1ALFUNCTION EQUIPHENT MAlllTENANCE NUH0ER CAUSE RESULT CORRECTIVE ACTION 4 Rod LPRM Preventive WR #13602 N/A N/A Replaced 5 diodes.

Display 4

Torus & Dry-Preventive WR #9937 N/A

.N/A Adjusted limit: switch.

well vacuum Breaker 3-1601-20A Preventive WR #11664 N/A N/A Installed new cyl. kit.

l Refuci Grapple Preventive WR #12007 N/A N/A Replaced air hose & fit-tings on monorail hoist.

Cable switch -

Preventive WR #14020 N/A N/A Checked - found okay.

Refuel Platforn Accam. 34-03 Preventive WR #14160 N/A N/A Tight;ened bolts on i

(J-1) diaphragm.

Refuel Plat-Preventive WR #14021 N/A N/A Attached fitting & re-form straint to prevent air leak at lower grapple end.

I 1

t i

e

ORESDEN-UNIT 2/3 SAFETY RELATED MAINTENANCE.- JUNE, 1981 NATURE OF LER OR OUTAGE HALFUNCTI0tt EQUIPl1ENT MAlflTENANCE NU'idER CAUSE RESul.T CORRECTIVF ACTION Spare 2/3 Rx Preventive WR #11599 N/A N/A Overhauled & replaced Safety Valve disc.

  1. 6532 Spare 2/3 Rx Preventive WR #11601 N/A N/A Overhauled val've.

Safety Valve

  1. 6299 Spare 2/3 Rx Preventive WR #11600 N/A N/A Overhauled valve.

Safety Valve

  1. 6263 Spare 2/3 Rx Preventive WR #11538 N/A N/A Overhauled valve.

Safety Valve

  1. 6526 DG Air Re-Preventive WR #13514 N/A N/A Replaced valve.

ceiver Drain Tank Valve 2/3-4699-187 Diesel Gen.

Preventive WR #12973 N/A N/A Performed quarterly valve.

i 4KV Breaker to Preventive WR #12351 N/A N/A Replaced cracked contact Bus 23-1 supports.

DG Cool Water Preventive WR #12443 N/A N/A Inspected bearing - ok.

Pump Inspected Y strainer -

cleaned.

Spare Grinnell Preventive WR #13464 N/A N/A Rebuilt snubbers.

Snubbers Rx Bldg. Crane Preventive WR #13662 N/A N/A Adiusted drum brake &

inutalled new indicator bracket.

i

2 A.

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I T

SUMMARY

OF. OPERATING EXPERIENCE UNIT ONE

' JUNE, 1981 6-1 to 6-30 Unit One was shutdown for the entire month, awaiting license approval for the chemical cleaning.. Major work scheduled to be-completed following chemical cleaning is as follows: HPCI installation for ECCS upgrading, equip-

nent upgrade to IEEE 279, major in-service inspection, and refuel.

Y f'

SUMMARY

OF OPERATING EXPERIENCE UNIT TWO JUNE, 1981 6-1 to 6-13 Unit Two entered the month operating at a power level of 333 MWe and operated at this approximato level until 6-13-81 at 0545 hours0.00631 days <br />0.151 hours <br />9.011243e-4 weeks <br />2.073725e-4 months <br />, when lightning struck the building, causing in-house electrical problems, automatically scramming the reactor.

6-13 to 6-30 The reactor was made critical on 6-14-81 at 1230 hours0.0142 days <br />0.342 hours <br />0.00203 weeks <br />4.68015e-4 months <br /> and automatically scrammed at 1617 hours0.0187 days <br />0.449 hours <br />0.00267 weeks <br />6.152685e-4 months <br /> because of low condenser vacuum. The reactor was again made critical on 6-15-81 at 0130 hours0.0015 days <br />0.0361 hours <br />2.149471e-4 weeks <br />4.9465e-5 months <br />, and the Unit was placed in service at 0807 hours0.00934 days <br />0.224 hours <br />0.00133 weeks <br />3.070635e-4 months <br />, reaching a power level of 778, and operated until 6-30-81 at 2202 hours0.0255 days <br />0.612 hours <br />0.00364 weeks <br />8.37861e-4 months <br /> when it was take.n off the line to investi-gate the 2B recire pump problem that had developed 6-29-81.

The reactor was criti-cal at the end of the reporting period.

Unit Two availability was 92.73% and capacity factor was 55.99%.

~,

t._

l 4

SUMMARY

OF OPERATING EXPERIENCE UNIT THREE JUNE, 1981 6-1 to 6-30 Unit Three entered the month operating at a power level of 799 MWe and operated continuously during the entire month, with a capacity factor of e.S.21% and an availability of 100%.

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