ML20076K662

Monthly Operating Repts for Aug 1983

ML20076K662
Person / Time
Site:	Dresden
Issue date:	09/01/1983
From:	Schroeder B, Scott D COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
DJS-1TR-83-864, NUDOCS 8309150222
Download: ML20076K662 (14)

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OPERATING DATA REPORT DOCKET NO. 050-237 DATE Sept. 1. 1983 COMPLETED BY B. A. Schrceder TELEPHONE (815) 942-2920 OPERATING STATUS NOTES

1. Unit Name: Dresden II

2. Reporting Period: August, 1983 Please correct items 17 & 18 for July, 1983 to:

3 Licensed Thermal Power (MWt): 2,527

4. Nameplate Rating (Gross MWe): 828 225390 1,038,713 53,926,979 5 Design Electrical Rating (Net MWe): 794 206473 961,112 50,958,302 i 6. Maximum Dependable Capacity (Gross MWe): 812 l 7. Maximum Dependable Capacity (Net MWe): 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 MWe): N/A

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

I This Month Yr-to-Date Curoulative.

11. Hours in Reporting Period 744 ~

5831 116591

12. Number of Hours Reactor Was Critical 724.72 2574.55 89,433.40 13 Reactor Reserve Shutdown Hours 0 0 0

14. Hours Generator On-Line 713.38 2355.53 88,181.17 15 Unit Reser e Shutdown Hours 0 0 0 l 16. Gross Thermal Energy Generated (MWH) 1,681,675 4,967,087 170,448,596 l

17 Gross Electrical Energy Generated (MWH) 535,167 1,537,880 54,462,146

18. Net Electrical Energy Generated.(MWH) 505.776 1,466,890 51,464,080 19 Unit Service Factor 95.88 40.40 75.63

20. Unit Availability Factor 95.88 40.40 75.63

21. Unit Capacity Factor (Using MDC Net) 88.06 32.59 57.18

22. Unit Capacity Factor (Using DER Net) 85.62 31.68 55.59 23 Unit Forced Outage Rate 4.12 26.88 11.80

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 hD EEE B30901 1

R hh0CK05000237 PDR

OPERATING DATA REPORT DOCKET NO. 050-249 DATE Sept. 1, 1983 COMPLETED BY B. A. Schroeder TELEPHONE re g gg7_797n OPERATING STATUS NOTES

1. Unit Name: Dresden III

2. Reporting Period: August, 1983 Please correct items 17 & 18 for July, 1983 to:

3 Licensed Thermal Power (MWt): 2,527

4. Nameplate Rating (Gross MWe): 828 479,889 3,598,915 S I ,164,C4@

5 Design Electrical Rating (Net MWe): 794 449,991 3,420,459 48,553,104

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 This Month Yr-to-Date Cumulative.

11. Hours in Reporting Period 744 5831 106176

12. Number of Hours Reactor Was Critical 744 5734.3 82,125.0

13. Reactor Reserve Shutdown Hours 0 0 0

14. Hours Generator On-Line 744 5686.51 79,144.51 15 Unit Reserve Shutdown Hours 0 0 0

16. Gross Thermal Energy Generated (MWH) 1,369,272 12.520,704 158,782,444 17 Gross Electrical Energy Generated (MWH) 424,874 4,023,789 51,588,920

18. Net Electrical Energy Generated.(MWH) 401,527 3.821.986 48,954,631 19 Unit Service Factor 100 97.52 74.54

, 20. Unit Availability Factor 100 97.52 74.54

21. Unit Capacity Factor (Using MDC Net) 69.02 84.79 59.65

22. Unit Capacity Factor (Using DER Net) 67.97 82.55 58.07 23 Unit Forced Outage Rate 0.0 2.46 12.76

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

Refueline outage scheduled to commence September 30, 1983.

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

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DOCKET NO. 050-237 UNIT NAME Dresden II UNIT SHUTDOWNS AND POWER REDUCTIONS DATE son, _ i. 1993 -

COMPLETED BY B.A. Schroeder TELEPHONE (815) 942-2920 REPORT MONTH August 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 10 83-8-11 F 30.5 H I - - -

Contractor dropped welding stick and burned hole in bellows for a

primary containment. Repaired.

1 4

i 1 2 3 4 F: Forced Reason: Method:

S: Scheduled A-Equipment Failure (Explain) Exhibit G-Instructions for 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) i E-Operator Training & License Examination i F-Administrative G-Operational Error H-Other (Explain)

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DOCKET NO. 050-249 3 UNIT NAME III UNIT SHUTDOWNS AND POWER REDUCTIONS DATE Ano. 2. 1983

• COMPLETED BY B.A. Schroeder TELEPHONE (815) 942-2920 j REPORT MONTH A ucu s t 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 None i

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l 1 2 3 4 F: Forced Reason:

S: Scheduled Method: Exhibit G-Instructions fer 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) i E-Operator Training & License Examination (NUREG-0161)

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

1 AVERAGE DAILY UNIT POWER LEVEL

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DOCKET NO. 050-237 UtilT II DATE September 1, 1983 COMPLETED BY B. A. Schroeder TELEPHONE (815) 942-2920 MONTH _ Aunust. 1983 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 74 9 17 7s4 2 767 18 771 3 770 19 767 4 771 20 764 5 747 21 736

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6 761 22 753 737 762 7 23 8 687 24 765 g 739 764 25 10 669 26 771 476 770 11 27 0 663 12 28 378 708 13 29 14 489 30 715 642 31 729 15 16 735 -

e-AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 050-249 UlllT III DATE September 1, 1983 l COMPLETED BY B. A. Schroeder TELEPHONE (815) 942-2920 MONTH August, 1983 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (HWe-Net) (MWe-Net) 1 576 17 539 2 574 18 540 i

3 572 19 532 4 569 20 527 570 21 525 5

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562 22 524 6

7 561 23 523 8 556 24 521 q 542 25 519 9

473 26 517 10 jy 558 514 27 519 505 12 28 13 557 29 501 14 550 30 503 15 546 31 504 16 543 -

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DRESDEN UNIT 2 .

SAFETY RELATED MAINTENANCE - AUGUST, 1983 NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION Unit 2 CRD Preventive W.R. #28835 ---

N/A N/A Replaced rod movement control switch.

Rod Movement Control Switch 902-17 Panel Preventive W.R. #28995 ---

N/A N/A Replaced fuse block.

Fuse Block E LPRM 16-49A Preventive W.R. #23280 ---

N/A N/A Replaced LPRM card.

1. 2 EPN # 16-49A Scram Timing Preventive W.R. #22601 ---

N/A N/A Replaced 4 relays.

Relays ECCS Relay Preventive W.R. #27701 ---

N/A N/A Investigated and repaired contact 1530-299 problem in relay.

2B RPS MG Set Preventive W.R. #27454 ---

N/A N/A OAD tested frequency and voltage trips - ok.

Unit 2 125V Preventive W.R. #28081 ---

N/A N/A Found wire pinched in door - repaired.

Reserve Bus Ckt 12 Unit 2 MSIV- Preventive W.R. #17096 ---

N/A N/A Disassembled, repaired and reassembled ID EPN #2-203- valve.

1-D HPCI Turbine Preventive W.R. #21276 ---

N/A N/A Checked calibration of signal converter C.V. Cali- and M.G.U. for proper control valve bration operation.

Accumulator 10-31 Preventive W.R. #29025 ---

N/A N/A Cleaned SW and remade connection.

DRESDEN UNIT 2 -

SAFETY RELATED MAINTENANCE - AUGUST, 1983 NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION IRM Channel 18 Preventive W.R. #28857 ---

N/A N/A Inspected and repaired IRM #18.

IRM #17 Preventive W.R. #28527 ---

N/A N/A In.spected and repaired.

RBM Preventive W.R. #28697 ---

N/A N/A Changed R.B.M. set points.

Accumulator Preventive W.R. #29138 ---

N/A N/A Repacked valve.

50-39 East Side SBLC Pump Preventive W.R. #26243 ---

N/A N/A Replaced existing pressure gauge and Discharge modified piping support.

Pressure Cauge EPN #PI2-Il57 Main Steam Preventive W.R. #28910 ---

N/A N/A Performed DIS 250-2 to check trip set Line Low point in a vibration condition.

Pressure Switch SRM #21 Preventive W.R. #24659 ---

N/A N/A Inspected and repaired abnormal SRM readings.

D2 IRM 15 Preventive W.R. #28359 ---

N/A N/A Inspected and repaired improper IRM Range 7 overlap between ranges.

DW ED Sump Preventive W.R. #27645 ---

N/A N/A Repaired broken wire in limit switch Discharge on valve.

Iso.

M0-2-2301-36 Preventive W.R. #26923 ---

N/A N/A Repaired grounded condition in breaker EPN #MO panel.

l 2301-36 i

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y DRESDEN UNIT 2 SAFETY RELATED MAINTENANCE - AUGUST, 1983 NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION Accumulator Preventive W.R. #28103 ---

N/A N/A Installed new valve bonnet.

38-35 K-9 Hanger MI151D- Preventive W.R. #28704 ---

N/A N/A Adjusted Strut.

146 EPN

1. 1151D-146 Vacuum Preventive W.R. #29115 ---

N/A N/A Repositioned and tightened switch.

Breaker 1601-32C 10 2 Mechani- Preventive W.R. #24903 ---

N/A N/A Functionally tested snubbers.

cal Snubber Functional Test i LPCI Inboard P aventive W.R. #28767 ---

N/A N/A Removed lantern ring and repacked valve.

Injection Valve Unit 2 D/W Preventive W.R. #28726 ---

N/A N/A Opened and closed D/W equipment hatch.

Equipment Hatch GP II Isola- Preventive W.R. #29239 ---

N/A N/A Repaired relay connection.

, tion Relay 595-104B EPN #2-595-104B Penetration Preventive W.R. #29167 ---

N/A N/A Weld repaired hole in vacuum breaker X-103A bellows.

Control Rod Preventive W.R. #27943 ---

N/A N/A Dismantle inspection of control rod Drives drives to inspect for defective parts.

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SUMMARY

OF OPERATING EXPERIENCE UNIT TWO August, 1983 08 to 08-11 Unit 2 entered the month operating at a power level of 747 MWe and operated until the lith, when it was found that additional arc strikes had burned a hole in another bellows seal for the primary containment system. (Same as last month). The unit was manually shutdown and cooled down.

08-11 to 08-31 After repairs, the unit was once again placed back in service. The unit operated the remainder of the month (with normal power reductions on weekends for surveil-lances) reaching a power level of 813 MWe with a capacity factor of 86.25% and an availability of 95:88%.

SUMMARY

OF OPERATING EXPERIENCE UNIT THREE August, 1983 i

8-1 to 8-31 Unit Three entered the month operating at a power level of 612 MWe and operated continuously throughout the entire month (with normal power reductions on weekends for surveillances), reaching a power level of 615 MWe with a capacity factor of 68.65% and an availability of 100%.

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m ih Comm:nw:alth Edis:n Dr:sdin Nuclear Power Station

@ Telephone 815/942-2920 R R. # 1 Morris, Illinois 60450 l

September 2, 1983 DJS HR: 83-864 Director, Office of Inspection and Enforcement United States Nuclear Regulatory Commission Washington, D.C. 20555 Attn: 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, j b%

Scott D.Jf)ionSuperintendent Stat Dresden Nuclear Power Station DJS/BS/dk l Enclosure l

l cc: Region III, Regudatory Operations, U.S. NRC Chief, Division Nuclear Safety, State of Il U.S. NRC, Document Management Branch Project Manager, EPRI Nuclear Licensing Administrator Nuc. Sta. Div. Vice Pres.

l Statistical Research l

Manager, Tech. Serv. Nuc. Sta.

l Tech. Staff EA l On-Site NRC Inspector )3h Sta. Nuc. Eng. Dept.

Comptroller's Office ffl File /NRC Op. Data /

File / Numerical PIP Coordinator

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