ML20148B241

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Monthly Operating Repts for Apr 1997 for Braidwood Nuclear Power Station,Units 1 & 2
ML20148B241
Person / Time
Site: Braidwood  Constellation icon.png
Issue date: 04/30/1997
From: Pershey C, Tulon T
COMMONWEALTH EDISON CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BW-97-0022, BW-97-22, NUDOCS 9705120313
Download: ML20148B241 (11)
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Text

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May 2,1997 j BW/97-0022 l United States Nuclear Regulatory Commission Attention: Document Control Desk l Washington, D.C. 20555-0001

Subject:

Monthly Operating Report for April,1997 Braidwood Nuclear Power Station, Units 1 and 2 ,

Facility Operating Licenses NPF-72 and NPF-77 NRC Docket Nos. 50-456 and 50-457 Ladies and Gentlemen:

In accordance with Technical Specification 6.9.1.8, enclosed you will find the Monthly Operating Report for Commonwealth Edison Company's (Comed's) braidwood ' Nuclear Power Station, Units I and 2, covering the period April 1,1997 through April 30,1997.

Please address any comments or questions regarding this matter to Chris Pershey at (815) 458-2801, extension 2173.

Very truly yours,

.J. Tulon k

Station Manager 13raidwood Nuclear Station TJT/CP/dah O CORRESP/CSTEcliliw974x)22 Enclosures i

e cc: A. B. Deach, Regional Administrator - Rill g R. R. Assa, Braidwood Project Manager - NRR {

C. J. Phillips, Senior Resident inspector - Braideod T. J. Esper, IDNS Resident inspector - Braidwood Office of Nuclear Facility Safety - IDNS 9705120313 970430 PDR ADOCK 05000456 R PM 2 ll...lllHlll11.llI.ll. Illl.l ll a

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l cc: INPO Records Center D. L. Farrar, Nuclear Regional Senice Mgr. .,

if D. Pontious. Nuclear Licensing Admin.

D. R. Eggett, Nuclear Engineering Dept. l H. G. Stanley, Site Vice President, Braidwood D. M. Hoots, Unit i Operating Engineer  ;

i J. P. Kuchenbecker, Unit 2 Operating Engineer J. M. Bunccicky, Westinghouse D. R. Scavers, A.N.I.

S. P. Focht, American Nuclear Insurers  ;

C. E. Pershey, Braidwood j F. Bash, Braidwood  :

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BRAIDWOOD NUCLEAR POWER STATION UNIT I AND UNIT 2 MONTIILY PERFORMANCE REPORT 4.

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NRC DOCKET NO. 050-456, LICENSE NO. NPF-72 l NRC DOCKET NO. 050-457, LICENSE NO. NPF-77 3

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1 A. OPERATING DATA REPORT  ;

Docket No: 50-456 Unit: Braidwood 1 Date: 05/02/1997 Completed by: Chris Pershey Tek' phone: 815-458-2801 OPERATING STATUS

1) Reporting Penod: April 1997 Gross Hours: 719
2) Currently Authorized Power Level (MWt): 3411 Design Electncal Rating (MWe-gross): 1175 Design Electrical Rating (MWe-net): 1120 Max Dependable Capacity (MWe-gross): 1175 Max Dependable Capacity (MWe net)- 1120
3) Power level to which restricted (If Any): None
4) Reasons for restrictions (If Any): None This Mo. Yr to Date Cumulative
5) Report Period Hours: 719 2879 76736
6) Hours Reactor Critical. 0.0 2,089.4 60,114.8
7) RX Reserve Shutdown Hours: 0.0 0.0 0.0
8) Hours Generator on Line: 0.0 2,088.1 59,291.8
9) Unit Reserve Shutdown Hours: 0.0 0.0 0.0
10) Gross Thermal Energy (MWHt): 0 7,007,502 190,516,076
11) Gross Elect Energy (MWH): 0 2,434,817 63,044,921
12) Net Elect. Energy (MWH): -8,763 2,337,370 60,398,771
13) Reactor Service Factor: 0.0 72.6 78.3
14) Reactor Availability Factor: 0.0 72.6 78.3
15) Unit Service Factor: 0.0 72.5 77.3
16) Unit Availability Factor: 0.0 72.5 77.3
17) Unit Capacity Factor (MDC NET): -1.1 72.5 70.3
18) Unit Capacity Factor (DER NET): -1.1 72.5 70.3
19) Unit Forced Outage Rate: 0.0 0.0 7.4
20) Unit Forced Outage Hours: 0. 0 0.0 4,714.4
21) Shutdown Schedule Over Next 6 Months-22)If Shutdown at End of Reporting Period, Estimated Date of Startup: 5/21/97

B. AVERAGE DAILY UNIT NET POWER LEVEL LOG Docket No: 50-456 Unit: Braidwood 1 Date: 05/02/1997 Completed by Chris Pershey Telephone: 815-458-2801 MONTH. April 1997 r

Qay MWe-net Qay MWe-net

1) -13 16) -12
2) -12 17) -12
3) -13 18) -12
4) -13 19) -12
5) -13 20) -12 ,
6) -12 21) -12
7) -12 22) -12
8) -12 23) -12
9) -12 24) -11
10) -12 25) -12
11) -12 26) -12 1
12) -12 27) -12
13) -12 28) -12
14) -12 29) -12 ,

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15) -12 30) -12 I

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  • Due to condenser efficiency i

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C. UNIT SHUTDOWNS / REDUCTIONS .-

Docket No.: 50 - 456 Unit:- Braidwood 1 Date: 05/02/97 .'

Completed by: Chris Pershey Telephone: 815-458-2801 REPORT PERIOD: April 1997 LER Cause & Corrective Action h Date Type Hours Reason Method Number System Component to Prevent Recurrence 3 970401 S 719 C 4 Continuing scheduled sixth refueling outage

SUMMARY

Unit 1 continued its refueling outage the entire month of April 1997.

TYPE REASON METHOD SYSTEM & COMPONENT F - Forced A - Equipment Failure Maint or Test 1 - Manual S - Scheduled B - Maint or Test 2 - Manual Scram Exhibit F & Instructions for C - Refueling 3 - Auto Scram Preparation of Data Entry Sheet D - Regulatory Restriction 4 - Continued Licensee Event Report (LER) File E - Operator Training & Licensee Examination 5 - Reduced Load (NUREG-0161).

F - Administration G - Operator Error H - Other

D. SAFETY /REUEF VALVE OPERATIONS ..

Docket No.: 50 - 456 Unit: Braidwood 1 Date: 05/02/97 .

Completed by- Ted Eliakis

. Telephone: 815-458-2801 Valves No. & Type Plant g Actuated Actuation Condition Descn,otion of Event None I

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--._-----x-____-__- _ _ ._ - - - _ _ _ - - _ _ - - - - - . _ - - - - _ _ . - - - - - , - -

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A. OPERATING DATA REPORT Docket No: 50 -457 Unit: Braldwood 2  :

Date: 05/02/1997 Completed by: Chris Pershey [

Telephone: 815-458-2801 OPERATING STATUS

1) Reporting Period: April 1997 Gross Hours: 719 j
2) Currently Authorized Power Level (MWt): 3411 Design Electrical Rating (MWe-gross): 1175 Design Electrical Rating (MWe-net): 1120 Max Dependable Capacity (MWe-gross): 1175 Max Dependable Capacity (MWe-net): 1120
3) Power level to which restricted (if Any): None
4) Reasons for restrictions (if Any): None This Mo. Yr to Date Cumulative 5
5) Report Period Hours: 719 2879 74818  !
6) Hours Reactor Critical: 719.0 2,879.0 63,668.1
7) RX Reserve Shutdown Hours: 0.0 0.0 0.0
8) Hours Generator on Line: 719.0 2,879.0 63,255.1
9) Unit Reserve Shutdown Hours: 0.0 0.0 0.0
10) Gross Thermal Energy (MWHt): 2,425,177 9,749,205 204,997,301
11) Gross Elect. Energy (MWH): 837,540 3,357,265 67,587,536
12) Net Elect. Energy (MWH): 814,321 3,250,016 64,888,094
13) Reactor Service Factor: 100.0 100.0 85.1
14) Reactor Availability Factor: 100.0 100.0 85.1 ,
15) Unit Service Factor: 100.0 100.0 84.5
16) Unit Availability Factor: 100.0 100.0 84.5
17) Unit Capacity Factor (MDC NET): 101.1 100.8 77.4
18) Unit Capacity Factor (DER NET): 101.1 100.8 77.4
19) Unit Forced Outage Rate: 0.0 0.0 4.5
20) Unit Forced Outage Hours: 0.0 0.0 2,947.6 ,
21) Shutdown Schedule Over Next 6 Months: 9/27/97 Refueling outage 22)lf Shutdown at end of Reporting Period, Estimated Date of Startup:
8. AVERAGE DAILY UNIT NET POWER LEVEL LOG Docket No: 50-457 Unit: Braidwood 2 Date: 05/02/1997 Completed by: Chns Pershey Telephone: 815-458-2801 MONTH: April 1997 Qay MWe-net Qay MWe-net
1) 1136
  • 16) 1140 *
2) 1138
  • 17) 1141 *
3) 1137
  • 18) 1142 *
4) 1137
  • 19) 1142 *
5) 1137
  • 20) 1142 *
6) 1139
  • 21) 1140 *
7) 1140
  • 22) 1139 *
8) 1141
  • 23) 1144 *
9) 1142* 24) 1143 *
10) 1143
  • 25) 1143 *
11) 1142
  • 26) 1143 *
12) 1145
  • 27) 1143 *
13) 882 28) 1143 *
14) 1136
  • 29) 1143 *
15) 1140
  • 30) 1142 *
  • Due to condenser efficiency

C. UNIT SHUTDOWNS / REDUCTIONS .-

Docket No.: 50 - 457 Unit: Braidwood 2 Date: 05/02/97 .

Completed by: Chris Pershey Telephone: 815-458-2801 REPORT PERIOD: April 1997 LER Cause & Corrective Action h Date Type Hours Reason Method Number System Component to Prevent Recurrence 1 970413 F 0 H 5 NA JJ PL Analysis currently indicates that the Digital Electro-Hydraulic Control did not see the valve test pushbutton depressed while performing the throttle /govemor valve test. Subsequent valve testing will be performed with real time monitoring of the input panel signals followed by hardware testing with DEHC out of service.

SUMMARY

Unit 2 entered the month of April 1997 at 100% capability and operated routinely up to April 13 when the unit was held at reduced power while investigating a positioning abnormality that occurred during routine Throttle / Governor valve testing. Full capability was restored April 14th and the unit operated routinely the remainder of the month.

M REASON METHOD SYSTEM & COMPONENT F - Forced A - Equipment Failure Maint or Test 1 - Manual S - Scheduled B - Maint or Test 2 - Manual Scram Exhibit F & Instructions for C - Refueling 3 - Auto Scram Preparation of Data Entry Sheet D - Regulatory Restriction 4 - Continued Licensee Event Report (LER) File E - Operator Training & Licensee Examination 5 - Reduced Load (NUREG-0161).

F - Administration G - Operator Error H - Other

t D. SAFETY /REUEF VALVE OPERATIONS ,.

Docket No.: 50 - 457 Unit: Braidwood 2 -

Date: 05/02/97 .

Completed by: Ted Eliakis Telephone: 815-458-2801 Valves No. & Type Plant M Actuated Actuation Condition Description of Event None

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