ML20086A567

Monthly Operating Rept for Oct 1983

ML20086A567
Person / Time
Site:	Dresden
Issue date:	11/01/1983
From:	Schroeder B, Scott D COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
83-1065, NUDOCS 8311160022
Download: ML20086A567 (12)

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OPERATING DATA REPORT DOCKET NO. 050-237 DATE November 1, 198k COMPLETED BY B. A. Schroeder TELEPHONE (815) 942-2920 OPERATING STATUS NOTES. Item #18:

1.

Unit Name:

Dresden II 2.

Reporting Period: October, 1983 Corrected figures for months of: August '83 3

Licensed Thermal Power (MWt):

2.527 502,637/1,463,749/51,46,0,939 4.

Nameplate Rating (Gross MWe):

828 september '83 5.

Design Electrical Rating (Net MWe): 794 538,806/2,002,555/51,999,745 6.

Maximum Dependable Capacity (Gross MWe):

812 7

Maximum Dependable Capacity (Net NWe):

772 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 NWe): N/A 10.

Reasons Fcr Restrictions, if Any:

n/A This Month Yr-to-Date Cumu.l.at ive.

11.

Hours in Reporting Period 74 5 7296 118056 12.

Number of Hours Reactor Was Critical 733.27 _

4027.82 90,886.67 l

.13.

Reactor Reserve Shutdown Hours 0

0 0

14.

Hours Generator.On-Line 724.83 3800.37 89,626.0

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15.

Unit Reserve Shutdown Hours 0

0 0

16.

Gross Thermal Energy Generated (MWH) 1,717.313 8,541,077 173,932,586 17 Gross Electrical Energy Generated (MWH) 555,472 2,700,111 55,588,377 18.

Net Electrical Energy Generated. (MWH) 522,867 2,525,422 52,522,612 19 Unit Service Factor 97.29 52.09 75.92 i

20.

Unit Availability Factor 97.29 52.09 75.92 21.

Unit Capacity Factor (Using MDC Net) 90.91 44.84 57.63 l

22.

Unit Capacity Factor (Using DER Net) 88.39 43.59

-56.03 1

23 Unit Forced Outage Rate 2.71 18.91 11.65 24.

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

N/A

-25.

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

N/A 1

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OPERATING DATA REPORT DOCKET NO.

050-249 DATE November 1.

1983J l

COMPLETED BY B. A. Schroeder TELEPHONE r n, a 947_797n OPERATING STATUS NOTES Item #18:

1.

Unit Name:

Dresden III Corrected figures for months 2.

Reporting Period:

October, 1983 of: -. August 83 3

Licensed Thermal Power' (MWt):

2,527 399,059/3,819,518/48,902,163 4.

Nameplate Rating (Gross MWe):

828 September '83 340,190/4,159,708/49,242,353 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 9

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

N/A 10.

Reasons For Restrictions, if Any:

N/A' 1

This Month Yr-to-Date Cumulative $

11. -Hours in Reporting Period 745 7296 107641 12.

Number of Hours Reactor Was Critical 0

6454.3 82,845.0

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13 Reactor Reserve Shutdown Hours 0

0 0

14.

Hours Generator On-Line 0

6403.1 79,861.1

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15 Unit Reserve Shutdown Hours 0

0 0

16.

Gross Thermal Energy Generated (MWH) 0 13,699.358 159,961,098 17.

Gross Electrical Energy Generated (MWH) 0 4,337,788 51,952,919 18.

Net Electrical Energy Generated.(MWH)

-4,857 4,154,851 49,237,496 19 Unit Service Factor 0

87.76 74.19 20.

Unit Availability Factor 0

87.76 74.19 21.

Unit Capacity Factor (Using MDC Net)

.84 93.67 59.28 22.

Unit Capacity Factor- (Using DER Net)

.82 71.72 57.61 23 Unit Forced Outage Rate n_n 2.21 12.66 24.

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

Commenced Unit Refueling Outage 9-30-83.

25 If Shut Down At End Of Report Period, Estimated Date of Startup: Mid-January, 1984

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DOCKET NO. 050-237 UNIT NAME Dresden II -

UNIT SHUTDOWNS AND POWER REDUCTIONS DATE November 1.

1983 COMPLETED BY B. A. Schroeder TELEPHONE (815) 942-2920 REPORT MONTH OCTOBER, 1983 l

METHOD OF LICENSEE CAUSE & CORRECTIVE NO.

DATE TYPEl DURATION REASON 2 SHUTTING EVENT SYSTEM COMPONENT

. ACTION TO (HOURS)

DOWN REACTOR 3 REPORT #

CODE 4 CODES PREVENT RECURRENCE 11 83-10-13 F

20.1 H

3 During surveillance test, Instrument Mechanic manipulated valve.too quickly and caused spurious reactor. vessel high

-Pressure scram. Procedure will have a warning added to prevent a recurrence.

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1 2

3 4

i F: Forced Reason:

Method:

Exhibit G-Instructions for S:

Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensee C-Refueling

.3-Automatic Scram Event Report (

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

(NUREG-0161)

E-Operator Training & License Examination F-Administrative G-Operational Error j

H-Other (Explain)

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DOCKET NO. 050-249 UNIT NAME Dresden III UNIT SHUTDOWNS AND POWER REDUCTIONS DATE November 1, 1983 COMPLETED BY B.

A.

Rchrnodar TELEPHONE (815) 942-2920 REPORT MONTH OCTOBER. 1983

)

METHOD OF LICENSEE CAUSE & CORRECTIVE NO.

DATE TYPEl DURATION REASON 2 SHUTTING EVENT SYSTEM COMPONENT ACTION TO (HOURS)

DOWN REACTOR 3 REPORT #

CODE 4 CODES

. PREVENT RECURRENCE 8

83-9-30 S

745 C

1 Refueling, reactor vessel nozzle /

l recire. piping chemical cleaning and turbine overhaul outage.

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1 2

3 4

F: Forced Reason:

Method:

Exhibit G-Instructions for S: Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (

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

(NUREG-0161)

E-Operator Training & License Examination.

F-Administrative G-Operational Error H-Other (Explain)

AVERAGE DALLY UNIT POWER LEVEL DOCKET no. 050-237 UNIT II DATE November 1, 1983 COMPLETED BY B. A. Schroeder TELEPHONE 815/942-2920 MONTH OCTOBER. 1983 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 756 17 699 2

752 18 736 3

766 19 743 4

770 20 757 5

770 21 755 6

774 22 760 7

757 23 704 8

755 24 761 9

757 25 757 10 761 26 758 11 764 27 755 12 761 23 761 13 334 29 770 14 230-30 758 15 495 3;

750 16 619 i

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 050-249 UlliT III DATE November 1, 1983 COMPLETED BY B. A. Schroeder TELEPHONE 815/942-2920 t

MONTH OCTOBER. 1983 DAY AVERAGE DAILY POWER LEVEL DAY AVEP, AGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 0

17 0

2 0

18 0

3 0

19 0

4 0

20 0

O 5

0 21 0

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22 0

0 7

0 23 0

8-0 24 0

9 25 0

0 26 0

10 11 0

27 0

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0 28 0

13 29 0

0 0

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DRESDFN UNIT 2 SAFETY RELATED MAINTENANCE - OCTOBER, 1983 MALFUNCTION NATURE OF LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION M0 ISC -3B Preventive W.R. #28321 N/A N/A Inspected valve opening problem - cleaned, readjusted and tightened terminally as necessary.

U-2 24/48 VDC Preventive W.R. #29391 N/A N/A Changed timer and bad socket. Adjusted Bottom B float and equalizer to proper settings.

Charger HPCI Turbine Preventive W.R. #29353 N/A N/A Replaced vent cap.

Oil Sump EPH 2-2302 Control Rod Preventive W.R. #23346 N/A N/A Removed and installed CRD..

Drives Control Rod Preventive W.R. #23347 N/A N/A Removed and installed CRD.

Drives Control Rod Preventive W.R. #23348 N/A N/A Rebuilt and inspected CRD.

Drives N/A N/A Rebuilt and inspected CRD.

Control Rod Preventive W.R. #23349 Drives 24/48 Volt Preventive W.R. #29263 N/A N/A Replaced circuit board.

Battery Chargers U-2 HPCI Room Preventive W.R. #29837 N/A N/A Replaced belts.

Cooler Torus Expan-Preventive W.R. #29686 N/A N/A Repaired arc strikes on expansion bellows.

sion Bellows l

DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE - OCTOBER, 1983 MALFUNCTION NATURE OF LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION U-3 Grapple Preventive W.R. #27756 N/A N/A Inspected grapple for operability.

Replaced four solenoids.

MO 3-2301-10 Preventive W.R. #29991 N/A N/A Repaired M0 motor to valve mounting EPN M03-2301-studs. Readjusted limit and check 10 for proper operation.

U-3 Rx Bldg.

Preventive W.R. #30502 N/A N/A

. Installed new versa valve.

Supply Fan A.O. EPN 3A-5741 LPRM Cards Preventive W.R. #29151 N/A N/A Checked and repaired five LPRM cards.

APRM #3 Preventive W.R. # 11952 N/A N/A Inspected and repaired APRM.

DRESDEN ITTIT 2/3 SAFETY RELATED MAINTENANCE - OCTOBER, 1983 NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION Refueling Preventive W.R. #29695 N/A N/A-Adjusted the radiation monitor to a new Floor Rad trip setting.

Monitor (Indicator and Trip Unit)

EPN 1705-16A cnd 16B

3- -

SUMMARY

OF OPERATING EXPERIENCE UNIT TWO OCTOBER, 1983 1

.10-1 to 10-13 Unit 2 entered the month at'a power level of 795 MWe and operated continuously until the 13th when the unit scrammed.

While surveillance testing was in progress, an Instrument Mechanic manipulated a.ralve too quickly and caused a spurious reactor vessel high pressure scram.

10-14 to 10-31 The unit was quickly returned to service and operated continuously the remainder of the month (with normal power reductions on weekends for surveillances). The unit reached a power level of 814 MWe with a capacity factor of 89.21%

and an availability of 97.29%.

SUMMARY

OF OPERATING EXPERIENCE UNIT THREE OCTOBER, 1983 10-l_to 10-31 Unit 3 was shutdown for the entire month for its scheduled refueling and equipment overhaul outage. Major work includes:

1) Removal of all fuel from reactor.

2) _ Chemical cleaning of reactor nozzles / recirculation piping.

3) H.Pc turbine and main generator overhaul.

4) Inservice inspection of welds.

5) Hydrolazing and painting of torus.

6) LPRM removal and replacement.

7) CRD replacements.

Commonwealth Edison 4

Dresden Nucle:r Power St* tion g

R.R. #1 Morris, Illinois 60450 Telephone B15/942-2920 November 1, 1983 DJS LTR: 83-1065 Director, Office of Inspection and Enforcement United States Nuclear Regulatory Commission Washington, DC 20555 Attention: Document Control Desk

Dear Sir:

Enclosed please find Dresden Station's operating data for last month. This information is supplied to your office per the instruc-tions set forth in Regulatory Guide 1.16.

Sincerely, is)k D.

. Scott Station Superintendent Dresden Nuclear Power Station DJS: BAS:hjb Enclosure cc: Region III, Regulatory Operations, U.S. NRC Chief, Division Nuclear Safety, State of IL U.S. NRC, Document Management Branch Nuclear Licensing Administrator Nuc. Sta. Div. Vice Pres.

Manager, Tech. Serv. Nuc. Sta.

Tech. Staff EA On-Site NRC Inspector Sta. Nuc. Eng. Dept.

Comptrolier's Office PIP Coordinator INPO Records Center t

File /NRC Op. Data File / Numerical i

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