ML20216D588

Monthly Operating Repts for Mar 1998 for Byron Nuclear Power Station,Units 1 & 2

ML20216D588
Person / Time
Site:	Byron
Issue date:	03/31/1998
From:	Kofron K, Vogl J COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BYRON-98-0115, BYRON-98-115, NUDOCS 9804150347
Download: ML20216D588 (8)

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'Irl8142665411 April 10,1998 LTR: BYRON 98-0115 FILE: 2.7.200 U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 ATTENTION: Document Control Desk

SUBJECT:

Monthly Operating Report Byron Nuclear Power Station, Units 1 and 2 NRC Docket Numbers: 50: 454 and 455 Gentlemen:

Enclosed for your information is the Monthly Operating Report covering Byron Nuclear Power Station for the period March 1 through March 31,1998.

Sincerely,

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K. L. Kofron Station Manager /

Byron Nuc!aar Power Station

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KLK/JV/rp cc: A.B. Beach, Regional Administrator - Rlli Byron Project Manager - NRR Senior Resident inspector - Byron Office of Nuclear Safety - lDNS INPO Records Center B. Lewis, McGraw - Hill Nuclear Publications Dept.

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l BYRON NUCLEAR POWER STATION I

UNIT 1 AND UNIT 2 MONTHLY PERFORMANCE REPORT l

I COMMONWEALTH EDISON COMPANY NRC DOCKET NO. 050-454 NRC DOCKET NO. 050-455 LICENSE NO. NPF 37 LICENSE NO. NPF 66 I

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OPERATING DATA REPORT l

UNIT ONE l .

DOCKET NO. 050-454 UNIT NAME Byron One DATE 04/10/98 COMPLETED BY J.Voal TELEPHONE (815) 234 5441 x2282 REPORTING PERIOD March 1998 (Month / Year)

MONTH YEAR TO DATE CUMULATIVE

1. Des!gn Electrical Rating (MWe Net).

The nominal net electrical output of the unit specified by the utility and used for the purpose of plant design. 1,120 N/A N/A

2. Maximum Dependable Capacity (MWe-Net).

The gross electrical output as measured at the output terminals of the turbine-generator during the most restrictive seasonal conditions minus the normal i station service loads. 1,105 N/A N/A

3. Number of Hours the Reactor Was Critical.

The total number of hours during the gross hours of the reporting period that the reactor was critical. 574.1 574.1 89,254.4

4. Number of Hours the Generator Was On Line.

(Also called Service Hours). The total number of hours during the gross hours of the reporting period that the unit operated with breakers closed to the station bus. The sum of the hours the generator was on line plus the total outage hours should equal the gross hours in the reporting period. 545.9 545.9 88,374.4

5. Unit Reserve Shutdown Hours.

The total number of hours during the gross hours of the reporting period that the unit was removed from service for economic or similar reasons but was available for operation. 0 0 0

6. Net Electrical Energy (MWH).

The gross electrical output of the unit measured at the output terminals of the turbine-generator minus the normal station service loads during the gross hours of the reporting period, expressed in megawatt hours.

Negative quantities should not be used. 420,513 402,856 87,460,364 l

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j l UNIQUE REPORTING REQUIREMENTS (UNIT 1) l ,

for the month of March,1998  !

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1. Safety / Relief valve operations for Unit One. This information is provided pursuant to the reporting requirements cos.!ained in Technical Specification 6.9.1.8.

VALVES NO & TYPE PLANT DESCRIPTION DATE ACTUATED ACTUATION CONDITION OF EVENT None

2. Licensee generated changes to ODCM.

None

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3. Indications of failed fuel.

No. Fuel Reliability Indicator: FRi = 3.02 E-5 pCi/cc

4. Licensee Event Reports The following is a tabular summary of all Licensee Event Reports for Byron Nuclear Power Station, Unit One, occurring during the reporting period, March 1,1998 through March 31, 1998. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

Occurence Licensee Event Report Number Date Title of Occurrence 454: 98-005 03/07/98 Manual Reactor Trip due to Indeterminate Rod Sequencing Problem 454: 98-007 03/06/98 Valve RTS after Maintenance without Adequate Testing due to Personnel Errors 454: 98-008 03/05/98 Manual Reactor Trip due to Loss of Communication During Rod Drop Testing Caused by Procedure Deficiency 454: 98-009 03/18/98 Missed Technical Specification Test due to Lack of Communication 454: 98-010 03/18/98 Failure to Perform Operability Testing after Maintenance due to Poor ,

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OPERATING DATA REPORT UNIT TWO l .

. DOCKET NO. 050-455 l UNIT NAME Byron Two l DATE 04/10/98 COMPLETED BY J. Voal l TELEPHONE (815) 234-5441 i x2282 1

REPORTING PERIOD March.1998 (Month / Year)

MONTH YEAR TO DATE CUMULATIVE

1. Design Electrical Rating (MWe-Net).

The nominal net electrical output of the unit specified i by the utility and used for the purpose of plant design. 1,120 N/A N/A l

2. Maximum Dependable Capacity (MWe-Net).

The gross electrical output as measured at the output terminals of the turbine-generator during the most restrictive seasonal conditions minus the normal station service loads. 1,105 N/A N/A 1

3. Number of Hours the Reactor Was Critical. I The total number of hours during the gross hours of the reporting period that the reactor was critical. 744 2,160 82,057.7

4. Number of Hours the Generator Was On Line.

(Also called Service Hours). The total number of hours during the gross hours of the reporting period that the unit operated with breakers closed to the  ;

station bus. The sum of the hours the generator was  ;

on line plus the total outage hours should equal the I gross hours in the reporting period. 744 2,160 81,351.3

5. Unit Reserve Shutdown Hours.

The total number of hours during the gross hours of the reporting period that the unit was removed from service for economic or similar reasons but was available for operation. 0 0 0

6. Net Electrical Energy (MWH).

The gross electrical output of the unit measured at the output terminals of the turbine-generator minus the normal station service loads during the gross hours of the reporting period, expressed in megawatt hours.

Negative quantities should not be used. 768,474 2,331,007 80,725,869 (p: \ 99byrit t s\ 980115.wp f-6)

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' ' I UNIQUE REPORTING REQUIREMENTS (UNIT 2) for the month of March,1998

1. Safety / Relief valve operations for Unit Two. This information is provided pursuant to the reporting requirements contained in Technical Specification 6.9.1.8.

VALVES NO & TYPE PLANT DESCRIPTION DATE ACTUATED ACTUATION CONDITION OF EVENT None

2. Licensee generated changes to ODCM.

None l

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3. Indications of failed fuel.

No. Fuel Reliability Indicator: FRI = 3.95 E-5 pCl/cc

4. Licensee Event Reports The following is a tabular summary of all Licensee Event Reports for Byron Nuclear Power Station, Unit Two, occurring during the reporting period, March 1,1998 through March 31, 1998. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

Occurrence Licensee Event Report Number Date Title of Occurrence 455: 98-002 03/12/98 Circuit Card Failure causes Second Inoperable Channel and TS 3.03 Entry l

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