ML20154L550

Monthly Operating Repts for Sept 1998 for Byron Nuclear Power Station,Units 1 & 2.With

ML20154L550
Person / Time
Site:	Byron
Issue date:	09/30/1998
From:	Colglazier R, Levis W COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BYRON-98-0283, BYRON-98-283, NUDOCS 9810190349
Download: ML20154L550 (8)

Text

. _ . . - -

, Commonweahh I dium Company

.*

• Ilyron Generating Mation 415o North Gernun Church Road n> ron, ii. 6 t o io (>y> 4 Tri HI 5-2314 t il 1

October 9,1998 LTR: BYRON 98-0283 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 September 1 through September 30,1998.

Sincerely, fY" mL William Levis Station Manager Byron Nuclear Power Station

/

WL/RClrp

/

cc: NRC Regional Administrator - Region 111 NRC Senior Resident inspector - Byron Station ay 9810190349 900930 DR ADOCK 0500 4 4 y (pt\98byrltrs\980283.wpf-1)

A Unicom Company

s e =

l 1

i BYRON NUCLEAR POWER STATION UNIT 1 AND UNIT 2 MONTHLY PERFORMANCE REPORT l-l COMMONWEALTH EDISON COMPANY NRC DOCKET NO. 050-454 i

i NRC DOCKET NO. 050-455  ;

LICENSE NO. NPF-37 l

l-LICENSE NO. NPF-66 f

I l

l i

l .'

l

[

p (pa\98byrltrs\980283,wpf-3)

OPERATING DATA REPORT UNIT ONE l

l DOCKET NO. 050-454 UNIT NAME Byron One DATE 10/09/98 COMPLETED BY R. Colalazier TELEPHONE (815) 234-5441 x2609 REPORTING PERIOD September .1988 (Month / Year)

MONTH YEAR TO DATE CUMULATIVE

1. Design 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 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. 720 4,965.1 93,645.4

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. 720 4,936.9 92,765.4

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 38

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. 802,488 5,307,182 92,364,690 L

(p \98byrltrs\980283.wpf-4)

UNIT SHUTDOWNb ,

.~

DOCKET NO. 050-454 UNIT NAME. Byron One DATE 10/09/98 COMPLETED BY R. Colatazier TELEPHONE (815)234-5441 x2609 REPORTING PERIOD: September.1998 (Month / Year)

NO. DATE TYPE DURATION REASON METHOD OF CAUSE/ CORRECTIVE ACTIONS F: FORCED (HOURS) (1) SHUTTING S: SCHEDULED DOWN (2) COMMENTS

'l

SUMMARY

Unit One Ran Steady During the Month of September.

(1) Reason (2) Method A - Equipment Failure (Explain) 1 - Manual B - Maintenance or Test 2 - Manual Trip / Scram C - Refueling 3 - Automatic Trip / Scram D - Regulatory Restriction 4 - Continuation E - Operator Training / License Examination 5 - Other (Explain)

F - Administrative G - Operational Error (Explain)

H - Other (Explain)

(p:\98byrltrs\980283.wpf-5)

UNIQUE REPORTING REQUIREMENTS (UNIT 1) for the month of September,1998 l

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

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

2. Licensee' generated changes to ODCM.

i None l

3. Indications of failed fuel. i 1

I No. Fuel Reliability Indicator: FRI = 2.10 E-5 Ci/cc i

4. Licensee Event Reports j

The following is a tabular summary of all Licensee Event Reports for Byron Nuclear Power Station, Unit One, occurring during the reporting period, September 1,1998 through September 30,1998. 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 l 454: 98-018 09/12/98 1A D/G Trip During Start-Up t

l l I l

l (pr\98byrltrs\980283.wpf+6) l

. . . .. _ - _ _ ~ .

l OPERATING DATA REPORT UNIT TWO DOCKET NO. 050-455 UNIT NAME Byron Two DATE 10/09/98 COMPLETED BY R. Colalazier TELEPHONE (815) 234-5441 x2609 REPORTING PERIOD September.1998 (Month / Year)

MONTH YEAR TO DATE CUMULATIVE

1. Design 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 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. 720 5,662.7 85,560.4

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 720 5,646.6 84,837.9 l S. 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 l the reporting period, expressed in megawatt hours.

Negative quantities should not be used. 793,721 6,069,033 84,463,895 l

i (pi\98byrltrs\980283.wpf-7)

UNIT SHUTDOWNS DOCKET NO. 050-455 UNIT NAME. Byron Two DATE 10/09/98 COMPLETED BY R. Colalazier TELEPHONE (815)234-5441 x2609 REPORTING PERIOD: September.1998 (Month / Year)

NO. DATE TYPE- DURATION REASON METHOD OF CAUSE/ CORRECTIVE ACTIONS F: FORCED (HOURS) (1) SHUTTING S: SCHEDULED DOWN (2) COMMENTS

SUMMARY

Unit Two Ran Steady During the Month of September. However, the Unit reduced power by approximately 75% on September 18th to repair a main feedwater regulator valve.

(1) Reason (2) Method A - Equipment Failure (Explain) 1 - Manual B - Maintenance or Test 2 - Manual Trip / Scram C - Refueling 3.- Automatic Trip / Scram D - Regulatory Restriction 4'- Continuation E - Operator Training / License Examination 5 - Other (Explain)

F - Adrninistrative G - Operational Error (Explain) i H - Other (Explain)

(p:\98byrltrs\980283.wpf-8',

UNIQUE REPORTING REQUIREMENTS (UNIT 2) for the month of September,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.  ;

l VALVES NO & TYPE PLANT DESCRIPTION l DATE ACTUATED ACTUATION CONDITION OF EVENT I i

None 1

1

2. Licensee generated changes to ODCM. l None

3. Indications of failed fuel.

No. Fuel Reliability Indicator: FRI = 6.42 E-5 pCi/cc l

4. Licensee Event Reports l

The following is a tabular summary of all Licensee Event Reports for Byron Nucit 'ower Station, Unit Two, occurring during the reporting period, September 1,1998 throus.,

September 30,1998. This information is provided pursuant to the reportable occurrenge reporting requirements as set forth in 10CFR 50.73.

Occurrence Licensee Event Report Number Date Title of Occurrence None i

(p \98byritrs\980283.wpf 9)