ML19209C634

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Monthly Operating Rept for Sept 1979
ML19209C634
Person / Time
Site: Dresden Constellation icon.png
Issue date: 10/02/1979
From: Cieszkiewicz S
COMMONWEALTH EDISON CO.
To:
Shared Package
ML19209C632 List:
References
NUDOCS 7910160521
Download: ML19209C634 (5)
v • d • e


Text

,

AVEi!1GE DAIL7 U:11T PGlCP LEVEL DOCCT t:0. 050-010 D

.2, UtilT Dresden I 3

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DATE October 2, 1979 v

COMPLETED BY S. A. Cieszkiewicz TELEPH0:lE (815) 942-2920 M0!JTH_ SEPTEMBER, 1979 DAY AVEPACE DAILY POUER LEVEL DAY AVERAGE DAILY POUER LEVEL (lnle-Ne t)

(fule-tie t )

1 0

17 0

2 0

IG 0

3 0

'19 0

4 0

20 0

5 0

21 0

s 6

0 22 0

7 0'

23 0

8 o

24 0

~

9 0

2' 0

10 0

26 0

11 0

27 0

12 n

23 0

13 0

29 0

14 0

30 0

15 o

31 16 0

1168 293 7 91016 0 s at

fsVEIMGE DAILY U!!! T PCUE.~. LEVEL DCCKET t:0. 050-237 g

Ull!T Dresden II DATE October 2, 1979 9

C0liPLETED BY S. A. Cieszkiewicz TELEPH0;;E (815) 942-2920

'.i SEPTEMBER, 1979 DAY AVEPAGE DAILY POUER LEVEL DAY AVERAGE DA!LY POWER LEVEL (IMc-fle t)

(live-tJe t) 1 761 17 762 2

622 18 770 3

749

  • 19 764 4

757 20 765 5

760 21 762 6

763 22 765 7

751' 23 729 8

674 24 772 9

762 25

" 774

0 769 26 768 11 762 27 769 12 763 23 797 13 763 29 645 14 773 30 730 15 77, 31 16 705

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AVE MG DAILY Ui!!T PCUCP LEVEL DOCKET i;0. 050-249 UlllT Dresden III

\\1 DATE October 2, 1979 9

COMPLETED BY S. A. Cieszkiewicz TELEPH0:4E (815) 942-2920 MG'lTH SEPTEMBER, 1979 DAY AVERAGE DAILY PC'./ER LEVEL DAY AVERAGE DAILY POUER LEVEL (f ule *!e t)

(inte-! Jet) 1 564 17 564 2

563 18 571 3

564

'19 568 4

566 20 568 5

569 21 505 6

565 22 3

7 566~

23 0

8 569 24 0

~

9 568 25 299 10 568 26 4 12 11 563 27 402 12 562 23 444 13 567 29 485 14 567 30 519 15 571 31 16 566 1163 295

OPERATING DATA REPORT COCKET NO. 050-010 DATE October 2, 1979 COMPLETED BY S. A. Cieszkiewicz TELEPHONE (815) 942-2920 OPERATING STATUS NOTES 1.

Unit Name:

Dresden I 2.

Reporting Period: September, 1979 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

Maximum Dependable capacity (Net MWe): 197 8.

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

NA 9

Power Level to Which Restricted, if Any (Net MWe): NA 10.

Reasons For Restrictions, if Any: NA This Month Yr-to-Date Cumulative 11.

Hours in Reporting Period 720 6.551 170.591 12.

Number of Hours Reactor Was Critical 0

0 113.153.75 13 Reactor Reserve Shutdown Hours 0

0 0

14.

Hours Generator On-Line 0

0 111,196.15 15 Unit Reserve Shutdown Hours 0

0 0

16.

Gross Thernal Energy Generated (MWH) 0 0

56.014.747.15 17 Gross Elertrical Energy Generated (MWH) 0 1.20 16.799.254.19 18.

Net Electrical Energy Generated (MWH)

- 1,296.0

-10,560.2 15.812.313.72 19 Unit Service Factor 0

0 65.2 20.

Unit Availability Factor 0

0 65.2 21.

Unit Capacity Factor (Using MDC Net) 0 0

47.1 22.

Unit Capacity Factor (Using DER Net) 0 0

46.3 23 Unit Forced Outage Rate 0

0 11.2 24.

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

NA 25 If Shut Down At End Of Report Period, Estimated Date of Startup: NA i160 296

OPERATING DATA REPORT DOCKET NO. 050-237 DATE October 2. 19 79 COMPLETED BY S. A. Cieszkiewicz TELEPHONE (815) 942-2920 OPERATING STATUS NOTES 1.

Unit Name:

Dresden II 2.

Reporting Period:

September, 1979 3

Licensed Thermal Power (MWt): 2.527 4.

Nameplate Rating (Gross MWe):

828 5

Design Electrical Rating (Net MWe): 794 6.

Maximum Dc;;ndable Capacity (Gross MWe): 812 7

Maximum Dependable Capacity (Net MWe):

772 8.

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

NA 9

Powe r Level to Which Restricted, if Any (Net MWe)? NA 10.

Reasons For Restrictions, if Any: NA This Month Yr-to-Date Cumulativo 11.

Hours in Reporting Period 720 6 ss1 A7;%il_

12.

Number of Hours Reactor Was Critical 720 5.296.83 62.7/M _

13 Reactor Reserve Shutdown Hours 0

0 0

14.

Hours Generator On-Line 720 5.t06.93 59.323.88 15 Unit Reserve Shutdown Hours 0

0 0

16.

Gross Thermal Energy Generated (MWH) 1,751,354 11.598.77.5 117.071.415 17 Gross Electrical Energy Generated (MWH) 564,025 3.'29.040 37.523.764 18.

Net Electrical Energy Generated (MWH) 534,694 3.528.958.853 35.477.440 4'6 19 Unit Service Factor 100 79.5 72.1 20.

Unit Availability Factor 100 79.5 72.1 21.

Unit Capacity Factor (Using MDC Net) 96.2 69.8 55.9 22.

Unit Capacity Factor (Using DER Het) 93.5 67.8*

54.1 23 Unit Forced Outage Rate 0

3. 7 13.9 24.

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

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

OPERATING DATA REPORT DOCKET NO. 050-249 DATE October 2, 1979 COMPLETED BY S. A. Cieszkiewicz TELEPHONE (815) 942-2920 OPERATING STATUS NOTES 1.

Unit Name: Dresden III 2.

Reporting Period: September, 19 79 3

Licensed Thermal Power (MWt): 2.s?7 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:

NA

~

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

ssa MWe 10.

Reasons For Restrictions, if Any: Administrative derating for air eiector activity evaluation This Month Yr-to-Date Cumulative 11.

Hours in Reporting Period 72 0 6.551 71.832 12.

Number of Hours Reactor Was Critical 667.5 3,937.85 53,646.57 13 Reactor Reserve Shutdown Hours 0

0 0

14.

Hours Generator On-Line 648.92 3.848.68 51.219.42 15 Unit Reserve Shutdown Hours o

o n

16.

Gross Thermal Energy Generated (MWH) 1.169.039 R 058.602 oR.R17 17n 17 Gross Electrical Energy Generated (MWH) 364.530 2.582.571 16 971 711 os 18.

Net Electrical Energy Generated (MWH) 342,412 2,438,080.147 3.0,655.557.760 19 Unit Service Factor 00.1 58.7 71.1 20.

Uni t Availabili ty Factor 90.1 58.7 71.3 21.

Unit Capacity Factor (Using MDC Net) 61.5 48.1 55.2 22.

U:iit Capacity Factor (Using DER Net) 59.9 46.9 51.7 23 Unit Forced Outage Rate 0

40.6 17.0 24.

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

NA 25 If Shut Down At End Of Report Period, Estimated Date of Startup: NA 1163 298

UULKLl (14.

UtilT SiluTDOWtlS AtlD POWER REDUCTl0lls UlllT tlAf tE-ntn nin Dresden I DATE october 2.

1979 C0tiPLETED BY S. A. Cieszkiewicz REPORT HONTil SEPTEMBER, 1979 TELEPilotlE (815) 942-2920 m

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a D

80 "c

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E

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3;g Licensee go Cause & Corrective eo g

o.

ate y

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5um Event go g3 Action to Q

S*

y5j Report #

m j

Prevent Recurrence

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S e

8 781031 S

720 C

3 Refuel and chemical outage E

i I

2 F:

Forced Reason:

G-Operational Error fa-other (Explain )

5:

Scheduled A-Equipment Failure (Explain)

H-Other (Explain) 0-Itaintenance of Test is Exhibit G-Instructions.for C-Refueling 3 lie t hod :

Preparation of Data D-Regulatory Restriction 1-Itanual Entry Sheets for Licensee E-Operator Training & License Examination 2-Itanual Scram Event Report (LER) File (flVREG -

F-Administrative 3-Aut'omatic Scram 0161) 5 E x h ilii t I - smcc source i

DULKLI !!O. 050 917 UNIT SilUTDOWHS AND POUER REDUCTIO!!S UNIT tlAllE Dresden II DATE October 2.

1979 C0ftPLETED fly S. A. Cieszkiewicz TELEP110NE (815) 942-2920 REPORT HONTil SEPTEMBER, 1979 "L

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c

.9 0 u.5 S Licensee S#

E^o Cause & Corrective

~

c:)

o o

o No.

Date S

%o E

3US Event U3 S3 Action to

(

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Report #

37" j"

Prevent Recurrence W

6 790508 F

.9 A

4 (remained crit cal)

Repaired generator hood steam leak on the bypass

  • 7 790606 F

0 A

NA "B" reactor recirculation pump motor -

generator set tripped when a transformer in the generator field control system failed, resulting in a load decrease to 313 MWe until repairs were completed.

8 790612 F

12.2 G

3 Rx scram (inadvertent closure of "D" MSL isolation valves) Group I isolation.

9 790727 F

0 A

NA Dropped load to approximately 390 FMe to determine cause of high D/W floor drain leakage. Entered D/W - found packing leak on Recire. Bypass Discharge 7A valve. Back-seated valve and continued load increase.

Floor drain leakage continued increasing.

Dropped load and re-entered D/W - found packing leak on 1402-6A (core spray manual stop). Unable to repair valve while operating.

10 790731 F

20.5 A

1 Shutdown to repair packing leak on 1402-6A.

I 2

- CONTINUED -

F:

Forced Reason:

G-Operational Error 4-other (Explain) 5:

Scheduled A-Equipment Failure (Explain)

Il-Other (Explain)

D-Itaintenance of Test 4 Exhibit G-Instructions.for C-Refuelin9 3 lie t hod :

Preparation of Data D-Regulatory Restriction 1 -itanua l Entry Sheets for Licensee E-Operator Training & License Examination 2-itanual Scram Event Report (LER) File (NUREG -

F-Administrative 3-Automatic Scram 0161) 5 Exhibit I - Same Source

Dutt:t I tiO. 050 9'47 UillT S!!UTD0V!as AND P01/ER REDUCT10ris Util T tlAllE Dresden IT DATE October 2.

1979 C0fiPLETED IlY S. A. Cieszkiewicz TELEPH0taE (815) 942-2920 REPORT MONTil SEPTDfRER. 1979 1

I cn 3 c-N c

E o.5 N Licensee fu"e E"o Cause c Corrective C

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No.

Date E

%5

.E U S Event Uo E.E Action to Prevent Recurrence 53 S

U[

Report #

37" f"

o 10 790731 F

29.3 A

1 Shutdown to repair packing leak on 1402-6A valve.,

  • NOTI

- Discdver( il error on Jui e,

!! 79 repor1 Previous ret ort li sts outage occurring on 790606 as #6.

Correct outage number si..;uld I,e #7.

1 ubse< uent outage numbers havt been changed.

l 1

2 F:

Forced Reason:

G-Operational Error 4-other (Explain) 5:

Scheduled A-Equipment Failure (Explain) ll-Other (Explain)

B-Itaintenance of Tes t is Exhibit G-Instruct!ons.for C-Refueling 3 lie t hod :

Preparation of Data D-Regulatory Restrictio.)

1 -itan ua l Entry Sheets for Licensee E-Operator Training & License Examination 2-itanual Scram F-Administrative Event Report (LER) File (NUREG -

3-Automatic Scram 0161) 5 Exhibit 1 - Same Source

UULKLt sits, nsn-no UtilT SiluTDOW!as AND P0'.lLR REDUCTIO!!S UtilT flAttE Dresden III DATE October 2. 1979 COMPLETED fly S. A. Cieszkiewicz HH I

-2920 REPORT MONTil SEPTE!!BER, 1979 N

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L N cn

  • N CO cn m

.9 E E

oEN Licensee 7e E"o Cause & Corrective C

~

as No.

Date S

%o E

.8 U cE Event Uo S.'o Action to T

jd E

U[c Report #

N"

["

Prevent Recurrence o

7 790922 S

71.08 B

3 Shutdown for snubber inspection I

I I

2 F:

Forced Reason:

G-Operational Error f-other (Explain) i 5:

Scheduled A-Equipment Failure (Explain)

H-Other (Explain)

R-liaintenance of Test la Exhibit G-Instructions for C-Refueling 3 lie t hod:

Preparation of Data D-Regulatory Restriction 1 -Itanua l Entry Sheets for Licensee E-Operator Training & License Examination 2-ftanual Scram F-Administrative Event Report (LER) File (flVREG -

3-Aut'omatic Scram 0161) 5 Exhibit I - Same Source i

D6,9

?

DRESDEN UNIT 1 "Of SAFETY RELATED MAINTENANCE - SEPTEMBER, 1979 I4ALFUNCT10tl NATURE OF LER OR OUTAGE CORRECTIVreACTION EQUIPMENT ltAlHTENANCE IluftBER CAUSE RESULT Fuel Pool Preventive W.R.

  1. 955 Outage #1-8 NA NA Inspected switch & found it to be working properly Grapple Control Rod Preventive W.R.
  1. 8101 Outage #1-8 NA NA Overhauled drive Drive SN 1232 Control Rod Preventive W.R.
  1. 8127 Outage #1-8 NA NA Overhauled drive Drive SN 1225 Control Rod Preventive W.R. #8126 Outage #1-8 NA NA Overhauled drive Drive SN 1273' Cor. trol Rod Preventive W.R. #8132 Outage #1-8 NA NA Overhauled drive Drive SN 1316 Control Rod Preventive W.R. #8133 Outage #1-8 NA NA Overhauled drive Drive SN 1261 Control Rod Preventive W.R.
  1. 8141 Outage #1-8 NA NA Overhauled drive Drive SN 1247 Control Rod Preventive W.R.
  1. 8137 Outage #1-8 NA NA Overhauled control rod drive Drive SN 1288 Control Rod Preventive W.R.
  1. 8140 Outage #1-8 NA NA Overhauled control rod drive Drive SN 1286 Control Rod Preventive W.R. #9969 Outage #1-8 NA NA Repaired all support devices & inspected Drive Thimble Support Devices b

I

/^6>

c DRESDEN UNIT 2

'{9' 7

SAFETY RELATED MAINTENANCE - SEPTEMBER, 1979 MALFUNCTlott NATURE OF LER OR OUTAGE CORRECTIVreACTION EQUIPMENT MAINTENAtlCE NUMBER CAUSE RESULT Control Rod Preventive W.R.

  1. 8740 Outage #2-10 NA NA Rebuilt control rod drive Drive SN 6545 Control Rod Preventive W.R.
  1. 7802 Outage #2-10 NA NA Rebuilt control rod drive Drive SN 735C Drywell Vent Preventive W.R. #1780 Outage #2-10 NA NA Lubricated solenoid stems Valve 2-1601-60 SRM Channel #22 Preventive W.R.
  1. 1428 Outage #2-10 NA NA Tightened nuts that hold the high voltage adjust pot to its bracket.

Ad-justed high voltage setting.

Fuel Pool Radi-Preventive W.R. #1437 Outage #2-10 NA NA Repaired broken wire on sensor connector & cali-ation Monitor brated.

Channel A Control Rod Preventive W.R.

  1. 1070 Outage #2-10 NA NA

' Rebuilt control rod drive Drive SN 13 125 V DC Inter-Preventive W.R. #1759 Outage #2-10 NA NA Replaced door magnets mittent Ground Drywell Vent Preventive W.R. #1781 Outage #2-10 NA NA Adjusted closed limit switch arm Valve 2-1601-23 "B" CCSW Pump Preventive W.R.

  1. 1322 Outage #2-10 NA NA Repacked pump 250V DC Battery Preventive W.R.
  1. 1948 Outage f2-10 NA NA Adjusted float settings

& aqualized 4

w i

/

1 0

/

DRESDEN UtilT 3 O

SAFETY RELATED MANTENANCE - SEPTEMBER, 1979 g

NATURE OF LER OR OUTAGE HALFUNCT10tl EQUIPHENT HAltlTENANCE

'dUMBE R CAUSE RESULT CORRECTIVE ACTION llPCI M.S.C.111 Preventive W.R. #1562 Outage #3-6 NA NA Replaced s'iitch Speed Stop In-dication Control Rod Preventive W.R. #2115 Outage #3-6 NA NA Rebuilt control rod drive-Drive SN 912 g

Channel A Fuel Preventive W.R. #1699 Outage #3-6

'NA NA Replaced sensor converteri Pool Vent Moni-

& calibrated 4

tor-l 24/48V DC 13at-Preventive W.R. #1621 Outage #3-6 NA NA Checked float voltage &

tery Charger four.d nothing wrong 1

I "A" Standby Preventive W.R. #1636 Outage #3-6 NA NA Rebuilt valve & set at Liquid Control 1440 PSI j

Relief Valve "A" Standby Preventive W.R.

  1. 1413 Outage #3-6 NA NA Replaced pack'ing Liquid Control Pump l

"A" Standby

.ceventive U.R.

  1. 1734 Outage #3-6 NA NA Adjusted packing &

Liquid Control tightened center nut Pump Offgas Monitor Preventive W.R.

  1. 1827 Outage #3-6 NA NA Adjusted setpoints Log Recorder s

1 Torus Manways Preventive W.R. #1853 Outage #3-7 NA NA Closed torus hatch Torus Manways Preventive W.R.

  1. 1852 Outage #3-7 NA NA Opened. hatch Diesel Generator Corrective W.R. #1918 Outage #3-6 sad Nipple & Union Oil Leakage Replaced nipple & union

1 V/

l l

k9 DRESDEN UtilT 3 6

SAFETY RELATED MANTENANCE - SEPTEMBER, 1979 NATURE OF LER OR OUTAGE HALFUNCTION EQUIPHENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION "A"

(#1) Offgas Preventive W.R.

  1. 1817 Outage #3-6 NA NA Recalibrated monitor Radiation Moni-tor Diesel Generator Corrective W.R.
  1. 1917 Outage #3-6 Bad Gasket 011 Leakage Replaced gasket Refueling Plat-Preventive W.R. #1809 Outage # 3-6 NA NA Installed limit switch I

form I

liydraulic Snub-Preventive W.R. #1970 Outage #3-7 NA NA Filled snubbers with oil bers e

liydraulic Snub-Preventive W.R.

  1. 1969 Outage #3-7 NA NA Bench. tested, installed, bers

& filled with oil Station Batterie:

Preventive W.R. # 949 Outage #3-7 NA NA Adjusted float settings 250V

& equalized Station Batterie:

Preventive W.R.

  1. 1950 Outage #3-7 NA NA Adjusted floa't. settings 24/48V 6 equalized l

Control Rod Preventive W.R.

  1. 2004 autage #3-7 NA NA Adjusted valve stem Drive N-10

(#50-19)

Control Rod Drivt Preventive W.R.

  1. 2003 Outage #3-7 NA NA Adjusted valve stem P-7 (#54-27)

"A" LPCI IIx Valva Preventive W.R.

  1. 1998 Outage #3-7 NA NA Put slide wire back on 3-1501-3A LER #79-25/03L-0 track

~

Electromatic Re-Corrective W.R.

  1. 1991 Outage #3-7

~ Bad Gasket Leakage Rept'ced gasket a

lief Valve SRM #21 - 111 111 Preventive W.R. #1702 Outage #3-7 NA NA Installed spare pulse Alarm LER #79-24/03L-0 height discriminator

i g,,)

C p

DRESDEN UNIT 3 SAFETY RELATED itAINTENANCE - SEPTEMBER, 1979 NATURE OF LER OR OUTAGE tiALFUNCTION EQUIPt1ENT ltAINTENANCE iluliBER CAUSE RESULT CORRECTIVE ACTION Diesel Eenerator Preventive W.R.

  1. 1644 Outagg #3-6 NA NA Performed _ quarterly in-spection 4

0 lg e

O O

6 0

4 e

4

69 0

ORESDEN UNIT 2/3 3,, f y SAFETY RELATED MA1NTENANCE 0- SEPTEMBER, 1979 MALFUNCT10tl NATURE OF LER OR OUTAGE CORRECTIVreACTION EQUIPMENT liAINTENANCE

!.UliBER CAUSE RESULT l

NA NA Lubricated door strikes Diesel Genera-Preventive W.R. #144S tor Interlock Door Diesel Genera-Preventive W.R. #1447 NA NA Adjusted breaker tor Breaker on Bus 23-1 Spare Target Preventive W.R. #4795 NA NA Reset valve & stamped nameplate Rock #159 Feedwater Check Preventive W.R.

14140 NA NA Cat "O" ring grooves Valves NA NA Adjust limit Reactor Bldg.

Preventive W.R. #1400 Overhead Crane I

SUMMARY

OF OPERATING EXPERIE' ICE UNIT ONE SEPTEMBER, 1979 9-1 to 9-30 Unit I was shutdown for entire month, continuing preparation for chemical cleaning and refueling.

709

\\\\6a, a

SU! NARY OF OPERATING EXPERIENCE UNIT TWO SEPTEMBER, 1979 9-1 to 9-30 Unit 2 operated continuously during the month of September at an average load of 806.4 MWe, with a capacity factor of 93.5.

No significant problems were noted during this operating period.

1168 310

SUMMARY

OF OPERATING EXPERIENCE UNIT T11REE SEPTEMBER, 1979 9-1 to 9-30 Unit 3 sta ted the month operating at an average power level of 600 MWe.

On September 22 at 0215, Unit 3 was taken of f line for a routine snubber inspection. During the ensuing shutdown, the unit scrammed at 0320, due to closure of the main steam line isolation valves which was caused by the reactor mode switch contacts not being fully made up.

During the outage, no inopera-tive snubbers were found, thereby changing the inspection interval to 18 months versus 12 months.

The unit was placed on the line at 0120 on September 25 and operated the remainder of the month at an average power level of 445.7 MWe with a capacity factor of 59.9.

Unit 3 is limited administratively to 550 MWe for air ejector activity evaluation.

I '\\ \\

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\\\\60

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