ML20148B241

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Monthly Operating Repts for Apr 1997 for Braidwood Nuclear Power Station,Units 1 & 2
ML20148B241
Person / Time
Site: Braidwood  
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)


Text

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l 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, k

.J. Tulon Station Manager 13raidwood Nuclear Station TJT/CP/dah O CORRESP/CSTEcliliw974x)22 i

e Enclosures cc:

A. B. Deach, Regional Administrator - Rill g

R. R. Assa, Braidwood Project Manager - NRR

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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

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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 i

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

Comed p

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 I

15)

-12 30)

-12

  • Due to condenser efficiency i

i

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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A. OPERATING DATA REPORT Docket No: 50 -457 Unit: Braldwood 2 Date: 05/02/1997 Completed by: Chris Pershey

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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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