ML041350486

April 2004 Monthly Operating Report for San Onofre, Units 2 and 3

ML041350486
Person / Time
Site:	San Onofre
Issue date:	05/13/2004
From:	Scherer A Southern California Edison Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML041350486 (9)

Text

SOUTHERN CALIFORNIA i v EDISON' An EDISON INTERNATIONALi Company A. Edward Scherer Manager of Nuclear Regulatory Affairs May 13, 2004 U. S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555

Subject:

Docket Nos. 50-361 and 50-362 Monthly Operating Reports for April 2004 San Onofre Nuclear Generating Station, Units 2 and 3 Gentlemen:

As required by Technical Specification 5.7.1.4 of Facility Operating Licenses NPF-1 0 and NPF-1 5, this letter provides the Monthly Operating Reports for April 2004 for San Onofre Nuclear Generating Station, Units 2 and 3, Attachments I and 2, respectively.

The number of hours in the reporting period and other affected parts of this report have been appropriately adjusted for the change to Daylight Saving Time at 0200 PST on April 4, 2004.

If you have any questions, please contact Mr. C. E. Williams at (949) 368-6707.

Sincerely, Attachments 1 & 2 cc:

B. S. Mallett, Regional Administrator, NRC Region IV B. M. Pham, NRC Project Manager, San Onofre Units 2 & 3 C. C. Osterholtz, NRC Senior Resident Inspector, San Onofre Units 2 & 3 P.O. Box 128 San C]emente, CA 92674-0128 949-368-7501 Fax 949-368-7575

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Jjj Monthly Operating Report, April 2004 San Onofre Nuclear Generating Station, Unit 2

MONTHLY OPERATING REPORT SAN ONOFRE NUCLEAR GENERATING STATION UNIT 2 April 2004 Docket No:

Unit Name:

Date:

Completed by:

Telephone:

50-361 SONGS - 2 May 13, 2004 C. E. Williams (949) 368-6707 Page 2 of 4 OPERATING DATA REPORT l 1 Design Electrical Rating (Net MWe) 7 1070 2

Maximum Dependable Capacity (Net MWe) 1070 This Month Yr-to-Date Cumulative 3

Number of Hours in Period 719 2,903 181,488 4

Number of Hours Reactor Was Critical*

628 1,606 147,378 5

Hours Generator On-line*

527 1,475 145,405 6

Unit Reserve Shutdown Hours 0

0 0

7 Net Electrical Energy Generated (MWh)*

527,254 1,589,662 155,705,618

• Rounded

MONTHLY OPERATING REPORT SAN ONOFRE NUCLEAR GENERATING STATION UNIT 2 April 2004 Docket No:

Unit Name:

Date:

Completed by:

Telephone:

50-361 SONGS - 2 May 13, 2004 C. E. Williams (949) 3686707 Page 3 of 4 UNIT SHUTDOWNS Number 2004-01 Date (YY/MM/DD) 04/02/09 Type (1)

S Duration (Hours)*

135.8 Reason (2)

C Method of Shutting Down the Reactor (3) 4 Cause/Corrective Actions/Comments Continuation of Scheduled Unit 2 (Include LER number, if any)

Cycle 13 Refueling Outage Number 2004-02 Date (YY/MM/DD) 04/04/10 Type (1)

F Duration (Hours)*

56.0 Reason (2)

A Method of Shutting Down the Reactor (3) 2 Cause/Corrective Actions/Comments Manually tripped reactor in response to (Include LER number, if any) a loss of Main Feedwater. This event will be reported in LER 2004-002 on or before June 9, 2004.

• Rounded (1) F-Forced S-Scheduled (2) Reason:

A-Equipment Failure (Explain)

B-Maintenance or Test C-Refueling D-Regulatory Restriction E-OperatorTraining & Ucense Examination F-Administrative G-Operational Error (Explain)

--Other (Explain)

(3) Method:

1-Manual 2-Manual Trip/Scram 3-Autornatic TrkpScram 4-Continuation from Previous Month (Explain) 54Other (Explain)

MONTHLY OPERATING REPORT SAN ONOFRE NUCLEAR GENERATING STATION UNIT 2 April 2004 Docket No:

Unit Name:

Date:

Completed by:

Telephone:

50-361 SONGS - 2 May 13, 2004 C. E. Williams (949) 368-6707 Page 4 of 4

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH Date Time 04101/04 0000 Unit in Mode 5.

04101/04 1622 Unit entered Mode 4.

04/02104 1432 Unit entered Mode 3.

04/03/04 1233 Unit entered Mode 2.

04/03104 1320 Reactor critical.

04/03/04 2347 Unit entered Mode 1.

04/04/04 0546 Unit returned to Mode 2.

04/04/04 1104 Unit entered Mode 1.

04/04/04 1404 Turbine and Main Generator tripped while synchronizing to the grid.

04/06/04 1648 Turbine and Main Generator synchronized to the grid.

04/10/04 1150 Manually tripped reactor in response to a loss of Main Feedwater.

Auxiliary Feedwater started automatically. Unit entered Mode 3.

04/11/04 1628 Unit entered Mode 2.

04/11/04 1737 Reactor critical.

04/12/04 1157 Unit entered Mode 1.

04/12/04 1952 Turbine and Main Generator synchronized to the grid.

04/13/04 1502 Unit returned to essentially full power.

04/30/04 2400 Unit in Mode 1.

Note: There were no challenges to the pressurizer safety valves during the month.

Monthly Operating Report, April 2004 San Onofre Nuclear Generating Station, Unit 3

MONTHLY OPERATING REPORT SAN ONOFRE NUCLEAR GENERATING STATION UNIT 3 April 2004 Docket No:

Unit Name:

Date:

Completed by:

Telephone:

50-362 SONGS - 3 May 13, 2004 C. E. Williams (949) 368-6707 Page 2 of 4 OPERATING DATA REPORT I

Design Electrical Rating (Net MWe) 1080 2

Maximum Dependable Capacity (Net MWe) 1080 This Month Yr-to-Date Cumulative 3

Number of Hours in Period 719 2,903 176,039 4

Number of Hours Reactor Was Critical*

719 2,742 146,089 5

Hours Generator On-line*

719 2,732 143,952 6

Unit Reserve Shutdown Hours 0

0 0

7 Net Electrical Energy Generated (MWh)*

806,143 3,042,007 152,574,217

• Rounded

MONTHLY OPERATING REPORT SAN ONOFRE NUCLEAR GENERATING STATION UNIT 3 April 2004 Docket No:

Unit Name:

Date:

Completed by:

Telephone:

50-362 SONGS - 3 May 13, 2004 C. E. Williams (949) 368-6707 Page 3 of 4 UNIT SHUTDOWNS Number N/A Date (YYIMM/DD)

N/A Type (1)

N/A Duration (Hours)*

NIA Reason (2)

N/A Method of Shutting Down the Reactor (3)

N/A Cause/Corrective Actions/Comments N/A (Include LER number, if any)

I Rounded (1) F-Forced S-Scheduled (2) Reason:

A-Equipment Failure (Explain)

B-Maintenance or Test C-Refueling D-Regulatory Restriction E-Operator Training & License Examination F-Administrative G-Operational Error (Explain)

Hi-Other (Explain)

(3) Method:

1-Manual 2-Manual Trip/Scram 3-Automatic TriplScram 4-Continuation from Previous Month (Explain) 5-Other (Explain)

MONTHLY OPERATING REPORT SAN ONOFRE NUCLEAR GENERATING STATION UNIT 3 April 2004 Docket No:

Unit Name:

Date:

Completed by:

Telephone:

50-362 SONGS - 3 May 13, 2004 C. E. Williams (949) 368-6707 Page 4 of 4 f

Date 04/01/04 04/30104

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH Time I 0000 Unit in Model.

2400 Unit in Mode 1.

Note: There were no challenges to the pressurizer safety valves during the month.