ML022960452

September 2002 Monthly Operating Report for PPL Susquehanna LLC

ML022960452
Person / Time
Site:	Susquehanna
Issue date:	10/14/2002
From:	Richard Anderson Susquehanna
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
PLA-005546
Download: ML022960452 (7)

Text

Richard L Anderson Vice President - Nuclear Operations PPL Susquehanna, LLC 769 Salem /Boulevard Berwick, PA 18603 Tel. 570.542.3883 Fax 570.542.1504 RLAnderson@pplweb com j

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'TM October 14, 2002 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Station OPI-17 Washington, D.C. 20555 SUSQUEHANNA STEAM ELECTRIC STATION MONTHLY OPERATING REPORTS Docket Nos. 50-387/NPF-14 and 50-388/NPF-22 PLA-005546 R41-2A The September 2002 Monthly Operating Reports for Susquehanna SES Units 1 and 2 are attached.

Very truly yours, Richard L. Anderson JJH/cmm cc: NRC Region 1 NRC Sr. Resident Inspector, Mr. S. Hansell NRC Sr. Project Manager, Mr. T. G. Colburn NRC Project Manager, Mr. E. M. Thomas

OPERATING DATA REPORT DOCKET NO.

UNIT DATE COMPLETED BY TELEPHONE 50-387 One 10/14/02 J. J. Hennings (570) 542-3747 OPERATING STATUS Unit Name:

Susquehanna Steam Electric Station (Ul)

Reporting Period:

September 2002 Design Electrical Rating (Net MWe):

1115 Maximum Dependable Capacity (Net MWe):

1105 Hours in Reporting Period Number of Hours Reactor Was Critical Hours Generator On-Line Unit Reserve Shutdown Hours Net Electrical Energy Generated (MWH)

This Month 720 720 720 0

787,799

1.

2.

3.

4.

5.

6.

7.

8.

9.

Yr.-to-Date 6551 5353.3 5284.8 0

5,581,025 Cumulative 169,320 139,655.5 137,444.8 0

140,807,934 NOTES:

Page 1 of 1

UNIT SHUTDOWNS DOCKET NO.

UNIT DATE COMPLETED BY TELEPHONE 50-387 One 10/14/02 J. J. Hennings (570) 542-3747 REPORT MONTH September 2002

2.

Reason A - Equipment Failure (Explain)

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

3.

Method:

1 - Manual 2 - Manual Scram 3 - Automatic Scram 4 - Continuation from previous month 5 - Other Summary: The only significant power change during September was an unplanned manual power reduction to 62% on 9108102. The reduction was due to an automatic isolation of a main turbine extraction steam line. Full power was restored on 9/10/02.

1.

F. Forced S. Scheduled Page 1 of 1

SUSQUEHANNA STEAM ELECTRIC STATION Docket Number:

50-387 Completed by:

J. J. Hennings Date:

10/14/02 Telephone:

(570) 542-3747 Challenges to Main Steam Safety Relief Valves None.

OPERATING DATA REPORT DOCKET NO.

UNIT DATE COMPLETED BY TELEPHONE 50-388 Two 10/14/02 J. J. Hennings (570) 542-3747 OPERATING STATUS

1. Unit Name:

Susquehanna Steam Electric Station (U2)

2.

Reporting Period:

September 2002

3.

Design Electrical Rating (Net MWe):

1117

4.

Maximum Dependable Capacity (Net MWe):

1111 Hours in Reporting Period Number of Hours Reactor Was Critical Hours Generator On-Line Unit Reserve Shutdown Hours Net Electrical Energy Generated (MWH)

This Month 720 718.2 718.2 0

791,841 Yr.-to-Date 6551 6549.2 6549.2 0

7,223,234

5.

6.

7.

8.

9.

Cumulative 154,560 134,206.2 132,315.9 0

138,028,064 NOTES:

Page 1 of 1

UNIT SHUTDOWNS REPORT MONTH 2.

I.

DOCKET NO.

UNIT DATE COMPLETED BY TELEPHONE September 2002 50-388 Two 10/14/02 J. J. Hennings (570) 542-3747 3.

Reason:

A - Equipment Failure (Explain)

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

Method:

I - Manual 2 - Manual Scram 3 - Automatic Scram 4 - Continuation from previous month 5 - Other No.

Date Type Duration Reason Method of Cause & Corrective Action (Hours) 2 Shutting to Prevent Recurrence Down Reactor 3

9/30/02 F

1.8 hrs in B,G 3

Automatic scram from 74% power at 22:10 due to a Sept. and turbine trip on high condenser pressure. The unit was at into 74% power due to a reactor recirc system runback which October '

resulted from a loss of 120V AC power. This loss of AC power also caused loss of the U2 off-gas recombiner causing condenser pressure to rise to the turbine trip setpoint.

The loss of power occurred during maintenance on an Uninterruptible Power Supply.

Summary: An Event Review Team investigation is in progress. Preliminary results are that a misinterpretation of a maintenance work plan, while doing preventive maintenance on 2D130 Uninterruptible Power Supply, resulted in a momentary closure of an incorrect circuit breaker. The team is also investigating the operation of an electrical interlock, which should have prevented the inadvertent operation of the incorrect circuit from causing the loss of power.

Components have been replaced and tested.

F. Forced S. Scheduled Page 1 of 1

SUSQUEHANNA STEAM ELECTRIC STATION I,

Docket Number:

50-388 Completed by: J. J. Hennings Date:

10/14/02 Telephone:

(570) 542-3747 Challenges to Main Steam Safety Relief Valves None.