ML20206E233
| ML20206E233 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 05/31/1986 |
| From: | Dandrea P, Querio R COMMONWEALTH EDISON CO. |
| To: | NRC OFFICE OF RESOURCE MANAGEMENT (ORM) |
| References | |
| BYRON-86-0615, BYRON-86-615, NUDOCS 8606230222 | |
| Download: ML20206E233 (8) | |
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BYRON NUCLEAR POWER STATION j
UNIT 1 MONTHLY PERFORMANCE REPORT COMMONWEALTH EDISON COMPANY NRC DOCKEI NO. 050-454 LICENSE NO NPF-37 8606230222 860531 PDR ADOCK 05000454 R
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Monthly Report for Byron Unit 1 A.
Summary of Operating Experience for Unit 1 The Unit was at power for the entire reporting period.
A discretionary load reduction to 70% was initiated on May 17th to minimize the rate of Steani Generator Tube corrosion and to prevent a back to back outage schedule with Unit 2.
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OPERATING DATA REPORT j
DOCKET NO.:
050-454-UNIT:
Byron One DATE:
6/11/86 I
COMPILED BY:
P. Dandrea 1
TELEPHONE:
(815)234-5441 x2341
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OPERATING STATUS l
1.
Reporting Period: May 1986. Gross Hours:
744 2.
Currently Authorized Power Level (MWt): 3411 Design Electrical Rating: 1175 (MWe-gross)
Design Electrical Rating: 1120 (MWe-net)
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Max Dependable Capacity (MWe-net): NOT DETERMINED i
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Power Level to Which Restricted (If Any): 1152 (MWe-gross) 4.
Reasons for Restriction (If Any): Not meeting minimum requirement on split feedwater flow.
a THIS MONTH YR TO DATE CUMULATIVE
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Report Period Hrs.
744 3623 6192 6.
Rx Critical Hours 744 3241.1 5233.6 7.
Rx Reserve Shutdown Hours 0
21.7 37.8 8.
Hours Generator on Line 744 3196.0 4388.4 9.
Unit Reserve Shutdown Hours 0
0 0
- 10. Gross Thermal Energy (MWH) 2141879 9841597 13180789
- 11. Gross Elec. Energy (WiH) 730310 3321185 4409775
- 12. Net Elec. Energy (MWH) 689910 3140906 4153804 j
- 13. Reactor Service Factor 100 89.5 84.5
- 14. Reactor Availability Factor 100 90.0 85.1 j
- 15. Unit Service Factor 100 88.2 l
- 16. Unit Availability Factor 100 88.2 7 0. ')
- 17. Unit Capacity Factor (MDC net)
N/A N/A N/A
- 18. Unit Capacity Factor (DER net) 82.8 77.4 59.9 j
- 19. Unit Forced Outage Hrs.
0 102.7 205.3 j
- 20. Unit Forced Outage Rate 0
3.1 4.5 l
- 21. Shutdowns Scheduled Over Next 6 Months: None.
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- 22. If Shutdown at End of. Report Period, Estimated Date of Startup: N/A
- 23. Units in Test Status (Prior to Commercial Operation): None
- Note - The cumulative numbers do not reflect power generated prior to commercial service.
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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.:
050-454 UNIT: Byron One DATE: 6/11/86 COMPILED BY:
P. Dandrea TELEPHONE:
(815)234-5441 x2341 MONTH: May, 1986 DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 1.
1076 MW 18.
779 MW 3.
1075 MW 19.
781 MW 4.
1004 MW 20.
789 MW 5.
1045 MW 21.
799 MW 6.
1025 MW 22.
799 MW 7.
1028 MW 23.
799 MW 8.
1051 MW 24.
798 MW 9.
1041 MW 25.
797 MW 10.
1076 MW 27.
780 MW 12.
1041 MW 28.
772 MW 13.
1063 MW 29.
770 MW 14.
1071 MW 30.
806 MW 15.
1051 MW 31.
804 MW 16.
1052 MW INSTRUCTIONS On this form list the average daily unit power level in MWe-Net for each day in the reporting month. Compute to the nearest whole megawatt. These figures will be used to plot a graph for each reporting month. Note that when maximum dependable capacity is used for the net electrical rating of the unit there may be occasions when the daily average power level exceeds the 100% line (or the restricted power level line.)
In such cases the average daily unit power output sheet should be footnoted to explain the apparent anomaly.
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R: port Period May, 1986 UNIT SHUTDOWNS / REDUCTIONS BYRON No.
Date Type HoursReasonM3thod LER Number System Component Cause & Corrective Action to Prevent Recurrence 8) 5/17/86 S
0 F
5 N/A N/A N/A This discretionary load reduction will minimize the rate of steam generator tube corrosion, until the tubes can be stress relieved during the 1987 refueling outage; In addition, this reduction will prevent a back-to-back outage schedule with Unit 2.
However, the unit has the capability of full power operation if the system power supply office needs additional l
generating capacity during the summer.
cococe*********
j 30 days of power operations.
Summary ecosce n an n e ee n,*
TYPE Reason Method System & Component F-Forced A-Equip Failure F-Admin 1-Manual Exhibit F & H S-Sched B-Maint or Test G-Oper Error 2-Manual Scram Instructions for C-Refueling H-Other 3-Auto Scram Preparation of D-Regulatory Restr:ction 4-Continued Data ?.ntry Sheet E-Operator Traininc 5-Reduced Load Licecaee Event Report
& License Examint. tion 9-Other (LER) File (NUREG-0161)
E.
UNIQUE REPORTING REQUIREMENTS 1.
Safety / Relief valve operations for Unit One.
VALVES NO & TYPE PLANT DESCRIPTION DATE ACTUATED ACTUATION CONDITION OF EVENT None 2.
Licensee generated changes to ODCM.
(Y/N)
Yes Effective date of change is June 1, 1986. Details will be reported in July's report.
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LICENSEE EVENT REPORTS The following is a tabular summary of all Licensee Event Reports for Byron Nuclear Power Station, Unit One, submitted during the reporting period, May 1 through May 31, 1986. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.
Licensee Event Report Number Date Title of Occurrence 86-013-00 5-22-86 Containment Air Lock Leakage Rate Surveillance performed late due to misapplication of Technical Specification 4.0.2.
86-014-00 5-29-86 Control Room Ventilation Actuation due to high vacuum alarm on OPR32J Radiation Monitor.
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h y-ll, 1986 LTR:
BYRON 86-0615 File:
2.7.200 Director, Office of Management Information and Program Control United States Nuclear Regulatory Commission Washington, D.C.
20555 ATTN:
Document Control Desk Gentlemen:
Enclosed for your information is the Monthly Performance Report coveriig Byron Nuclear Power Station for the period May 1 through May 31, 1986.
Very truly yours, cbM R. E. Querio Station Manager Byron Nuclear Power Station REQ /PHD/lr Enclosures I
cc:
J.G. Keppler, NRC, Region III NRC Resident Inspector Byron Gary Wright, Ill. Dept. of Nuclear Safety D.P. Galle T. J. Maiman D.L. Farrar Nuclear Fuel Services, PWR Plant Support L. Anastasia, Station Nuclear Engineering INPO Records Center Thermal Group, Tech Staff Byron Station Nuclear Group, Tech Staff Byron Station L. Olshan - USNRC P. H. Dandrea b
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(0625M/62M)
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