DCL-02-026, February 2002 Monthly Operating Report for Diablo Canyon, Units 1 and 2

From kanterella
Jump to navigation Jump to search
February 2002 Monthly Operating Report for Diablo Canyon, Units 1 and 2
ML020870350
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 03/15/2002
From: Becker J
Pacific Gas & Electric Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
DCL-02-026, GL-97-002
Download: ML020870350 (6)
v • d • e


Text

PacificGas and Electric Company James R. Becker Diablo Canyon Power Plant Station Director Mail Code t04/5/504 PO. Box 56 Avila Beach, CA 93424 March 15, 2002 B05.545.3462 Fax: 805.545.4234 PG&E Letter DCL-02-026 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Docket No. 50-275, DPR-80 Docket No. 50-323, DPR-82 Diablo Canyon Units I and 2 Monthly OE:ratino Report for February 2002

Dear Commissioners and Staff:

Attached is the Monthly Operating Report for Diablo Canyon Power Plant, Units I and 2, for February 2002. This report is submitted in accordance with Technical Specification 5.6.4 and NRC Generic Letter 97-02.

James R. Becker rid'1713/R0228797 Enclosures cclenc: Robert D. Glynn, Jr.

Kurt Larson Barbara Lewis Ellis W. Merschoff David L. Proulx Girija S. Shukia Gregory M. Rueger INPO Record Center A member of the STARS (Strategic Teaming and Resource Sharing) Alifance Catlaway . Comanche Peak & Diabto Canyon - Palo Verde

  • South Texas Project & Wotf Creek

Enclosure 1 PG&E Letter DCL-02-026 FEBRUARY 2002, OPERATION SUMMARIES DIABLO CANYON POWER PLANT UNITS I AND 2 Summary of Unit 1 Operation Unit 1 began February in Mode 1 (Power Operation), at approximately 100 percent power. Both units were curtailed on February 14, 2002, when power was reduced to approximately 58 percent because of entry into T.S. 3.0.3 due to previously identified instrument uncertainties associated with narrow range steam generator (SG) level low low trip setpoint. On February 16, 2002, following resetting of the SG level low-low trip setpoints, operators returned the unit to approximately 100 percent power.

Summary of Unit 2 Operation Unit 2 began January in Mode 1 at approximately 100 percent power. On Feburary 9, 2002, operators manually tripped Unit 2 due to loss of feedwater to a SG.

On February 12, 2002, following replacing of a failed solenoid valve and fuse, operators returned the unit to approximately 100 percent power.

Both units were curtailed on February 14, 2002, to approximately 58 percent because of entry into T.S. 3.0.3 due to previously identified instrument uncertainties associated with narrow range SG level low-low trip setpoint. After reaching approximately 58 percent power, Unit 2 was further curtailed to below 50 percent until the quadrant power tilt ratio had stabilized below 1.02. On February 16, 2002, following resetting of the SG level low-low trip setpoints, operators returned the unit to approximately 100 percent power.

Actuations of Safety or Pressurizer Power Operated Relief Valves There were no challenges to the pressurizer power operated relief valves, pressurizer safety valves, or steam generator safety valves.

Enclosure 2 PG&E Letter DCL-02-026 OPERATING DATA REPORT DOCKET NO.: 50-275 UNIT NAME: Diablo Canyon Unit 1 DATE: 03/01/2002 COMPLETED BY: R.L.Russell TELEPHONE: (805) 545-4327 REPORT MONTH: February 2002

1. Design Electrical Rating (MWe - Net): 1103
2. Maximum Dependable Capacity (MWe - Net): 1087 This Month YTD Cumulative
3. Number of Hours Reactor Critical: 672.0 1416.0 128836.0
4. Number of Hours Generator On-Line: 672.0 1416.0 127458.3
5. Unit Reserve Shutdown Hours: 0.0 0.0 0.0
6. Net Electrical Energy Generated (MWH): 732629 1566213 131714302 1

Enclosure 2 PG&E Letter DCL-02-026 UNIT SHUTDOWNS DOCKET NO.: 50-275 UNIT NAME: Diablo Canyon Unit 1 DATE: 03/01/2002 COMPLETED BY: R.L.Russell TELEPHONE: (805) 545-4327 REPORT MONTH: February 2002 NO. DATE TYPE DURATION REASON1 METHOD CAUSE & CORRECTIVE F(Forced) (HOURS) OF ACTIONS S (Scheduled) SHUTTING DOWN2 COMMENTS N/A There were no shutdowns this month.

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 from Previous Month E-Operator Training/License Examination 5-Other F- Administrative G-Operational Error (Explain)

H-Other (Explain) 2

Enclosure 2 PG&E Letter DCL-02-026 OPERATING DATA REPORT DOCKET NO.: 50-323 UNIT NAME: Diablo Canyon Unit 2 DATE: 03/01/2002 COMPLETED BY: R.L.Russell TELEPHONE: (805) 545-4327 REPORT MONTH: February 2002

1. Design Electrical Rating (MWe - Net): 1119
2. Maximum Dependable Capacity (MWe - Net): 1087 This Month YTD Cumulative
3. Number of Hours Reactor Critical: 640.1 1384.1 124065.9
4. Number of Hours Generator On-Line: 635.0 1379.0 122603.0
5. Unit Reserve Shutdown Hours: 0.0 0.0 0.0
6. Net Electrical Energy Generated (MWH): 667677 1415906 128821838 3

Enclosure 2 PG&E Letter DCL-02-026 UNIT SHUTDOWNS DOCKET NO.: 50-323 UNIT NAME: Diablo Canyon Unit 2 DATE: 03/01/2002 COMPLETED BY: R.L.Russell TELEPHONE: (805) 545-4327 REPORT MONTH: February 2002 NO. DATE FTYPE (Forced) DURATION (HOURS) REASON' METHOD OF SHUTTING CAUSEACTIONS

& CORRECTIVE S (Scheduled) DOWN2 02/09/02 F 37 A 2 The reactor was manually tripped due to the loss of feedwater to one steam generator. A failed solenoid valve and fuse, which controlled the main feedwater regulating valve to steam generator 2-4, were replaced.

LER-2-2002-002 will be submitted by 04/10/02.

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 from Previous Month E-Operator Training/License Examination 5-Other F- Administrative G-Operational Error (Explain)

H-Other (Explain) 4

Retrieved from "https://kanterella.com/w/index.php?title=DCL-02-026,_February_2002_Monthly_Operating_Report_for_Diablo_Canyon,_Units_1_and_2&oldid=2708127"