ML20147E931

Monthly Operating Rept for Sept 1978

ML20147E931
Person / Time
Site:	Dresden
Issue date:	10/10/1978
From:	Phelan J COMMONWEALTH EDISON CO.
To:
Shared Package
ML19294D151	List: ML20147E925 ML20147E931
References
78-1370, NUDOCS 7810180104
Download: ML20147E931 (65)

Text

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l AVERAGE DAILY UtllT POUER LEVEL DOCKET t3D. 050-010

. UtilT Dresden 1 DATE Oct . 4. 1978 COMPLETED BY J .F. Phelan TELEPHONE 815/942-2920 ext 263 MONTH September, 1978 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (rac-tie t ) (Mue-tie t) 121 116 1 17 2 117 18 115 3 121 '19 114 4 120 20 113 5 121 21 113 6 12D 22 112 7 116 23 106 8 117 24 116 9 116 25 116 10 106 26 115 ,

Ii 117 27 115 12 114 23 115 13 114 29 113 14 110 30 109 15 116 31 16 111 7P/o/ r e/ o y

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c AVERAGE DAILY UlllT POWER LEVEL DOCKET tio. 050-237 ,

. Ulll T nroncton TT DATE Oct 4, 1978 COMPLETED BY J.F. Phelan TELEPHONE 815/942-2920 ext 263 nouTH September, 1978 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (11Ue- Ne t ) (MUe-fle t) 1 747 17 607 2 709 18 665 3 682 19 700 4 733 20 724 5 L26 21 734 6 733 22 751 l 7 731 23 712 8 734 24 __

702 9 721 25 753 10 697 26 758 11 724 27 753

)

12 726 23 750 13 8 29 745 14 387 30 690 15 449 31 16 525 1

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AVERAGE DAILY UtilT POWER LEVEL DOCKET NO. 050-249 UlllT Dresden III DATE Oct 4 1978 COMPLETED BY J.F. Phelan TEL EPHON E815 / 942-2920 ext. 263 MONTH September, 1978 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (ItWe-fle t ) (MUc-Net) 1 748 17 0 2 376 18 0 3 442 19 0 4 538 20 0 5 626 21 0 6 691 22 0 7 753 23 54 8 759 24 388 9 718 25 534 to 731 26 651 ,

i1 736 27 732 l 12 747 28 751 13 749 29 772 14 733 30 769 15 597 31 16 0

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OPERATING DATA REPORT DOCKET NO. 050-010 DATE 0ct 10, 1978 COMPLETED BY J.F. Phelan TELEPHONE 815/942-2920 x 263 OPERATING STATUS NOTES

1. Unit Name: Dresden I

2. Reporting Period: deptember, iv/c 3 Licensed Thermal Power (MWt): 700

4. Nameplate Rating (Gross MWe): 209 5 Design Electrical Rating (Net MWe): 200

6. Maximum Dependable Capacity (Gross MWe): 205 7 Maximura Dependable Capacity (Net MWe): 197 l 8. If Changes Occur in Capacity Ratings (ltems 3 Through 7) Since Last Report, Give l Reasons:

i NA 9 Power Level to Which Restricted, if Any (Net MWe): 495 MWT

10. Reasons For Restrictions, if Any: cnre soray/LOCA Deratine This Month Yr-to-Date Cumulative

11. Hours in Reporting Period 720 6551 161831

12. Number of Hours Reactor Was Critical 720 5733.78 112442.97 13 Reactor Reserve Shutdown Hours 0 0 0

14. Hours Generator On-Line 720 5668.32 110503.72 15 Unit Reserve Shutdown Hours 0 0 0

16. Gross Thermal Energy Generated (MWH) 327565.2 2452772.152 55711073.55

17. Gross Electrical Energy Generated (MWH) 88,404.42 734,820.98 16,720,598.94

18. Net Electrical Energy Generated (MWil) 82,655.9 688,821.4 15,753,389.82 19 Uni t Service Factor 100 86.5 68.3

20. Unit Availability Factor 100 86.5 68.3

21. Unit Capaci ty Factor (Using MDC Net) 58.3 53.4 49.4

22. Unit Capacity Factor (Using DER Net) '

57.4 52.6 48.7 23 Unit Forced Outage Rate O 13.5 11.2

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

Decon Outage 781031 1.5 years

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

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OPERATING DATA REPORT DOCKET NO. 050-237 DATE Oct 10, 1978 COMPLETED BY J.F. Phelan TELEPHONE 815/942-2920 x263-OPERATING STATUS NOTES

1. Unit Name: Dresden II

2. Report ing Period: September, 1978 3 Licensed Thermal Power (MWt): 2527

4. Nameplate Rating (Gross Mbe): 828 5 Design Electrical Rating (Net MUe): 794

6. Maximum Dependable Capacity (Gross MWe): 812 7 Maximum Dependable Capacity (Net MWe): 772

8. If Changes Occur in Capacity Ratirgs (items 3 Through 7) Since Last Report, Give Reasons:

NA 9 Power Level to Uhich Restricted, if Any (Net MWe): NONE

10. Reasons For Restrictions, if Any: NA This Month Yr-to-Date Cumulativo

, 11. Hoars in Reporting Period 720 6551 73487 l 12. Number of Hours Reactor Was Critical 7na 7 A9?s 17 55236.17 13 Reactor Reserve Shutdown Hours 0 0 0

14. Hours Generator On-Linc 697.95 6059.4 51928.03 15 Unit Reserve Shutdown Hours 0 0 0

16. Gross Thermal Energy Generated (MWH) 1.584.131 13.703.046 100.512.248 17 Gross Electrical Energy Generated (MUH) 505.189 4.407.644 32.189.311

18. Net Electrical Energy Generated (MWil) 476,879 4,176,729.027 30,420.761.573 19 Unit Service Factor 96.9 92.5 70.7

20. Unit Availability Factor 96.9 92.5 70.7

21. Unit Capacity Factor (Using MDC Net) 85.8 82.6 53.6

22. Unit Capacity Factor (Using DER Net) '

83.4 80.3 52.1 23 Unit Forced Outage Rate ___. 1.0 7.s 1 s .1

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

NONE 25 If Shut Down At End Of Report Period, Estimated Date of Startup:

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. , . 1 OPERATING DATA REPORT DOCKET NO. 050-249 DATE Oct 10, 1978 COMPLETED BY J.F. Phelan TELEPHONE 815/942-2920 x 263; OPERATillG STATUS NOTES

1. Unit Name: Dresden III

2. Reporting Period: September, 1978 3 Licensed Thermal Power (MWt): 2527

4. Nameplate Rating (Gross MWe): ~ 828 5 Design Electrical Rating (Net tiWe): 794

6. Maximum Dependable Capacity (Gross MWe): 812 ,

7. Maximum De.pendable Capacity (flet t4We): 773

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

l 9 Power Level to Which Restricted, if Any (Net MWe): NONE

10. Reasons For Restrictions, i f Any: NA 9

This Month Yr-to-Date Cumulative l

11. Hours in Reporting Period 720 6551 63072

j. 12. Number oi Hours Reactor Was Critical 615 4792.82 47985.28 13 Reactor Reserve Shutdown Hours 0 0 0 ~

14. Hours Generator On-Line 518.95 4564.98 'T5672.82 15 Unit Reserve Shutdown Hours 0 0 0

16. Gross Thermal Energy Generated (MWH) 1.094.457 8787633 85831418

17. Gross Electrical Energy Generated'(MWH) 353.486 2804120 28.500.578sli

18. Net Electrical Energy Generated (ftWil) 333.100 2639256.973 27,025,079.613 19 Unit Service Factor 72.1 69.7 72.4

20. Unit Availability Factor 72.1 69.7 72.4

21. Unit Capacity Factor (Using MDC Net) 59.8 52.1 55.4

22. Unit Capacity Factor (Using DER Net) ~

58.3 __

50.7 33.96 23 Unit Forced Outage Rate 27.9 10.6 13.9

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

Snubber Inspection 790122.23 4P de

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

DOCKET tio.050-010 Ut!IT t!AfiE Dresden I UtilT StiUTD0'.Jils Atl0 POWER REDUCT10fl5 DATE Oct 10, 1978 C0fiPLETED BY J .F. Phelan September , 1978 TE LEP110llE 815/942-2970 REPORT ft0!1TH

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-c Licensee c.e o a En ce Cause & Correct.ive fio . Date S s

$5 u=

c 2US u a Event 73

>. u El eo Action to sv cc e _c c Report # w o Prevent Recurrence o rm3 u

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1 2 F: Forced Reason: G-Operational Error 4-other (Explain) 5: Scheduled A-Equipment Fa i l u re (Expla in ) H-Other (Explain)

B-Itaintenance of Test 4 Exhibit G-Instructions for C-Refuelin9 3 Method: Preparation of Data D-Regulatory Restriction 1 -itan ua l Entry Sheets for Licensee E-Operator Training & License Examination 2-tianual Scram Event Reoort (LER) F i l e (tJUREG F-Administrative 3-Automatic Scram 0161) 5 Exhibit 1 - Same Source

DOCKET NO. 050-237 Utili SiluTD0 TINS AND POWER REDUCTIOi!S UNIT fiAttE Dresden II DATE Oct 10, 1978 C0tiPLETED BY 3 p_ puntnn REPORT l-10NTil September, 1978 TELEPHONE 815/947-707n av* 263 1

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e . E E ,8' Licensee @c c"o Cause & Corrective No. Date S Eo $ SUS Event 53 S3 Action to 5 S U[g Report S N" j Prevent Recurrence e

11 780913 F 22.05 A 3 X-area Hi Temp - Coolers Tripped l

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1 2 F: Fo rced Reason: G-Operational Error 4-other (Explain) 5: Scheduled A-Equipment Failure (Explain) H-Other (Explain)

B-11aintenance of Test 4 Exhibit G-Instructions for C-Refueling 3 Method: Preparation of Data D-Regulatory Restriction 1 -itan ua l Entry Sheets for Licensee E-Operator Training & License Examination 2-tian ua l Scram Event Report (LER) File (NURE' F-Administrative 3-Automatic Scram 0161) 5 Exhibit 1 - Same Source

DOCKET NO. 050-249 UtilT SHUTDOW!15 A?10 POWER REDUCT10l15 UNIT NAME Dresden III DATE Oct 10. 1978 COMPLETED BY J.F. Phelan REPORT M0tlTH September, 1978 "u s.J

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.- u "co c-0 EU L.icensee ca e e En ce Cause & Correct.ive No. Date S

%o E SUE Event %3 8.3 Action to o

55 E U5c rm a Report # N" u

$ Prevent Recurrence o

8 780915 F 201.05 A 1 "A" Recire Pump Seal Replacement

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l 1 2 F: Forced Peason: G-Operational Error 1-other (Explain) 4

. 5: Scheduled A-Equipment Fa i lu re (Exp la i n ) H-Other (Explain)

B--Itai ntenance of Tes t li Exhibit G-Instructions for C- Refuel i ng 3 Method: Preparation of Data

! D-Regulatory Restriction 1 -t1a n ua l Entry Sheets for Licensee E-Operator Training & License Examination 2-f tanua l Scram Event Report (LER) File (NORE' F- Admi n i s t ra t i ve 3-Automatic Scram 0161)

I 5 Exhibit 1.- Same Source

DRESDEN UNIT 1 SAFETY RELATED MAINTENANCE September, 1978 a

NATURE OF LER OR OUTAGE MALFUNCTION-l ~ EQUIPMENT - MAINTENANCE NUMBER '

CAUSE RESULT CORRECT I VETACTI ON '

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. Fuel Bldg. Preventive WR#5341 NA NA Replaced Grapple Latch-Grapple Switch

'Incore 110C Preventive WR#6881 NA NA Ran Plateau & Checked-Electronics Check OK-Incore 104B Preventive WR#6880 NA NA Ran Plateau & Checked

-1 Electronics Check OK' Channel 11 Preventive WR#7242 NA NA Replaced Electronic Period Meter Tube V23 "A" SSG Recirc. Corrective WR#4995 Bad Gasket & Studs Leakage ' Replaced Flange Gasket &

Pump Studs ,

Core Spray-In- Preventive WR#8699 NA NA Replaced & Connected Jection Header Unions Channel 7 Perio<1 Preventive WR#7475 NA NA Replaced with Spare Meter Chassis & Testad L

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DRESDEN UN1T 2 SAFETY RELATED MAltlTENANCE September, 1978 MALFUNCT10tl NATURE OF LER OR OUTAGE CORRECTIVF-ACTION EQUIPMENT MAINTEriANCE liUMBER '

CAUSE RESULT Replaced Accumulator Preventive WR#6730 NA NA Accumulator 50-11 22B CCSW Pump Preventive WR#6808 NA NA Opened Both Valves.&

Removed Lime Deposists

-Room Cooler From Seats & Discs oCCSW Pump Corrective WR#5869 Damaged Coil Leakage Repared Leak & Tested Room Cooler 01601-21 Corrective WR#6282 Bad Solenoid Air Leakage Replaced Solenoid Valve Valve LPRM Input Preventive WR#3512 NA NA Replaced'23 Bad Relays Relays B Stack Gas Preventive WR#6900 NA NA Disassembled Valve Analyzer & Cleaned Diesel Genera- Preventive WR#6867 LER 78-50-OlL-0 NA NA Installed Air Start Motor tor Containment Preventive WR#6982 NA. NA Repacked Pump Cooling Serv.

Water Pump ,

2"B" 12CI Heat Preventive WR#6828 Outage 2-11 NA NA Replaced Strain Cauge Exchanger DP & Amp in Transmitter Controller O

DRESDEN UNIT 2 SAFETY RELATED MAltlTENANCE September, 1978 MALFutiCT10tl NATURE OF LER OR OUTAGE CORRECTIVF- ACTION EQUIPMENT HAINTENANCE IlUMBER '

CAUSE RESULT Vent to Reacto: Preventive WR#7178 LER-78-51-03L-0 NA NA Tightened Fittings on .

. Exchanger Valve Valve Operator 1601-24 LPRM 16-330 Preventive WR#6437 NA NA Checked LPRM Calibration

& Ran Plateau. Check-Indicated Normal Operatiot LPRM A4-40-33 Preventive WR# 6412 NA NA Replaced Fuse & Ad-justed Power Supply 250V Battery Preventive WR#1681 NA NA Installed New Breaker Charger LPCI Heat Preventive WR#7243 NA NA Cleaned & Checked Torque Exchanger Cool- Switch ing Water Dis-charge Valve RPS Relays Preventive WR#7376 NA NA Installed & Removed 590-ll2A,B,C, Jumpers Per Test

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DRESDEN UNIT 3 SAFETY RELATED MANTENANCE September, 1978 LER OR OUTAGE MALFUNCTION NATURE OF EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION NA NA Adjusted Switch in O "B" CCSW Pump Preventive WR#6866

• Vault Cooler-NA NA No Equip. Failure Found HPCI Mo' tor Preventive WR#5173 Alarms Caused by

' Gear Hnit C/S-' Momentary Contact Transfen GrounEl '

Delay Bad Union Leakage Repaired Union

• "A" Recire. Corrective WR#6856 Pump #1 Seal.

Cavity In- 1 .

strument Line , /

Bad Union Leakage Welded Union

• HPC1 Drain Pot Corrective WR#6759 (2301-3)

NA NA Cleaned & Lubricated

• CCSW Pump Room Preventive WR#6615 . LER-78-32-03L-0 Contacts .

Coolers NA NA Replaced Asco Valve

• Diesel Preventive WR#6499 Generator. Fuel ,

Oil Transfer Pump NA NA Replaced LPRM Meters

• LPRM Meter Preventive WR#4044 & Calibrated Panel'5 - A Level - Upper Left Quadrant G

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DRESDEN UNIT 3 SAFETY RELATED MANTEMANCE September, 1978 l

N!\TURE OF LER OR OUTAGE MALFUNCTION' EQUIPMENT MAINTENANCE NUMBER -'

CAUSE RESULT CORRECTIVE itTION g

Diesel Genera- Preventive WR#6058 NA NA Replaced Inboard & Out-tor Cooling board Bearing Assembliec

! Water Pump i* Diesel Genera- Preventive WRf6050 NA NA Installed New Pump tor Cooling ,

Water Pump G LPRM Input Preventive WR#3513 NA NA Tested Relays & Replaced Relays Bad Relays Main Steam Line Preventive WR#6731 LER-78-33-03L-0 i NA NA Replaced Pointer & -

High Flow Calibrated Switch Switch ,

HPCI Oil PJlter Preventive WR#6939 NA NA Cleaned Filters Assumulator_ Preventive WR#6973 NA .NA' Replaced Packing Nipple 06-15 & Cap "A" Recire Preventive WR#7159 Outage 3-8 NA NA Installed Seal & Tested Pump Hydraulic Preventive WR#7400 Outage 3-8 NA NA Filled Snubbers with Snubbe,rs Oil Drywell Snubber ; Preventive WR#7426 Outage 3-8 .NA NA $ Installed Rebuilt Snubber & Tested Safety Valves Preventive WR#7150 Outage 3-8 ,

, NA NA Removed Lifting # Bail Nuts .

G

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DRESDEN UNIT 3 l SAFETY RELATED MANTENANLr_ <eptember, 1978 L .*u_., s rg.,

't ._

NATURE OF LER OR OUTAGE MALFUNCTION d  ;

EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION iw V "B" Recirc Corrective WR#7392 Outage 3-8 Loose Packing Water Leakage Tightened Packing & g Pump Discharge Operated Valve ,

Valve C; Drywell Equip. Preventive WR#7153 Outage 3-8 NA NA . Opened Hatch

( Hatch' '

l -~ a LPRM 56-33C Preventive WR#6954 NA NA Replaced LPRM Input Card

~h Reactor Safety Preventive WR#7427 Outage 3-8 '

NA NA '. Replaced Diaphram Valve #203-4F *

/

Drywell Hatch Preventive WR#7154 Outage 3-8 NA NA Closed hatch 9 l Control Rod Preventive WR#7524 Outage 3-8 NA NA Adjusted Stem Drive A-7 (02- . .

27) Scram In-

• Let Valve N.

b IRM Channel 13 Preventive WR#5822 Outage 3-8 NA NA Repaired Broken Signal D Wire ,

• IM Outage 3-8 IRM Channel 16 Preventive WR#7050 NA NA Cleaned Connectors & l Remade Input Calbe gv Connector ,,

IRM Channel 16 Preventive WR#7531 Outage 3-8 NA NA Replaced Module With Spare IRM Monitor & 3 Calibrated  %

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DRESDEN UNIT 3 -

SAFETY RELATED MANTENANCE Septenber, 1978 flATURE OF LER OR OUTAGE MALFUNCT10fl flAINTENANCE NUMBER RESULT' CORRECTIVE /ITION

,; EQUIPMENT '

CAUSE SR11 #21 Penetra- Preventive WR#5990 Outage 3-8 NA- NA Moved Cable & Recalibratec

tion & Drywell

. Cable 3"A" Recire. Preventive WR#7260 Outage 3-8 NA NA Removed, Tested & Rein-l' ump Seal Purge stalled Check Valve -s Flow Check Valve k 02 Analyzer Preventive WR#7374 Outage 3-8 NA NA Cleaned & Adjusted Flow-rater & Tested IRM Channel 12 Preventive WR#7389 Outage 3-8 NA NA Cleaned Connector

' Vacuum Relief Preventive WR#7614 NA NA Adjusted Limit Switch Valve 3-1601-

-320 LPCI Heat Preventive WR#7576 Outage 3-8 NA NA Checked & Cleaned Con-Exchanger Out- tacts on Breaker let Valve 3A S

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DRESDEN UNIT 2/3 .i 4

SAFETY RELATED MAINTENANCE September, 1978  ;

MALFUNCTION NATURE OF LER OR OUTAGE

' CORRECTIVE- ACTION EQUIPMENT MAINTEttANCE tiUMBER CAUSE RESULT

-Diesel' Genera- Preventive WR!6871 NA NA Tightened Covers tor Inspection Cover Porthole Gaskets Reactor Recire Preventive WR#2837 NA NA Inspected Seal .

. Pump Seal

' Spare Safety. Preventive WR#6737 NA NA Rebuilt Safety Valve Valve SN#BK 6525-Diesel Genera- Preventive WR#5441 NA NA Installed New Bearings i

tor Cooling & Gasket Water Pump-Stack Gas Preventive WR#7126 NA NA Replaced Vacuum Pump

, Sample Pump "B"' 4 Diesel Genera- Corrective WR#7588 Bad Seals Diesel Generator Disassemblied valve &

tor Failed to Start Replaced.2 seals 125V Battery Preventive WR#1680 NA NA Installed New Breaker Charger Diesel Genera- Preventive WR#7587 NA NA Tested Timer - Tested OK I tor, Control Rod Preventive WR#5223 NA NA Overhauled Control Rod Drives Drives-i i _ .

)

DRESDEN UNIT 2/3 SAFETY RELATED MAINTENANCE' September, 1978 NATURE OF LER OR OUTAGE MALFUNCTIO!!

flUMBER '

RESULT CORRECTIVE ACTION EQUIPMENT MAINTENANCE CAUSE Spare Safety Preventive WR#11225 NA NA Rebuilt Safety Valve

-Valve SN#6296

' Chimney Stack- Preventive WR#6762 NA NA Rebuilt Pump Gas Vacuum Pump "B" Stack Gas ' Preventive WR#6827 NA NA Replaced Pump Motor Sample Pump Main Stack Preventive WR#6953 NA NA Replaced Discharge <

Gas Sample Needle Valve With Gate System Valve

• Diesel Preventive WR#6723 NA NA Readjusted' Alarm Generator l

'

• LPRM Amplifier Preventive WR#6598 NA NA Replaced the Operational Card Amplifier #1

• Diesel Genera- Preventive WR#5491 NA NA Removed Extra Wire tor Main hearing Low 011 Pressure Alarm Diesel Genera- Preventive WR#6256 NA NA Performed 6 Month In-tot spection 6

g.

,w, . .m .

SUMMARY

OF OPERATING EXPERIENCE UNIT ONE SEPTEMBER, 1978 9 The unit entered the reporting period on line at a power level of approximately 123 MWe and remained there for the full reporting period.

9-30 On September 30 Unit'1 completed 132 days of continuous operation.

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SUMMARY

OF OPERATING EXPERIENCE UNIT TWO t

SEPTEMBER, 1978 9-1 .The unit entered the month of September on line.

. 9-13 The unit scrammed at 0034 due to X-area high temperature.

A burnt lug in the breaker for the X-area room cooler fans caused the breaker to trip resulting in the high temperature

condition. The unit was placed back on line at 2237 hours0.0259 days <br />0.621 hours <br />0.0037 weeks <br />8.511785e-4 months <br /> the same. day.

9-30 The unit finished the reporting period on line.

SUMMARY

OF OPERATING EXPERIENCE UNIT THREE SEPTEMBER, 1978 9-1 The unit entered the month of September on line.

9-15 At 0722 the unit was shutdown to replace the "3A" recircula-tion of inaccessible snubbers was made. .During an attempted turbine startup, a blown fuse in the EIIC system caused the turbine to overspeed which in turn caused the generator hydrogen seal to leak. The seal was reseated and the EHC problemses corrected.

9-23 The unit was returned to service at 1625 and remained there through the end of the reporting period.

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