ML031740421
| ML031740421 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 06/12/2003 |
| From: | Florida Power & Light Co |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| Download: ML031740421 (17) | |
Text
Supplemental Emergency Power S P roi ect~
NRC Prbse"n tIon June v 20i03
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SEPS Project Team Members SFPL Energy Seabrook Station I Greg Kann - Project Manager I Ken Letourneau
- Project Engineering Manager I Mike O'Keefe - Licensing Supervisor I Renee-Nicole Leclerc - Licensing Lead
- Jim Hill - Operations Lead I Larry Rau - Risk Management Supervisor
- Carl Bible - FPL Project Office Supplemental Emergency Power System (SEPS)
June 12, 2003 Presentation to the NRC 2
FPL EnergY Seabrook Station Meeting Objective
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- Brief NRC staff on Supplemental Emergency Power System (SEPS) Project
- Initiate dialog on the project and schedule Supplemental Emergency Power System (SEPS)
June 12, 2003 Presentation to the NRC 3
FPL Energy Ove rvi ew Seabrook Station
- Supplemental Emergency Power System (SEPS) provides defense-in-depth for the emergency AC power system I Lower core damage frequency I Combined with an extended AOT will allow focused maintenance and improved EDG reliability Supplemental Emergency Power System (SEPS) 4 June 12, 2003 Presentation to the NRC
Project Description FPL Energy Seabrook Station
- Provide a reliable backup standby electrical supply for a loss of all AC event Supplemental Emergency Power System (SEPS) 5 June 12, 2003 Presentation to the NRC
Design Concept I
FPL Energy Seabrook Station I Two permanently installed non-safety DGs and switchgear I Connect to plant busses by permanently installed cables
- Supply emergency 4.16 kV bus E5 or E6 by switching operations I SEPS available on an as needed basis Supplemental Emergency Power System (SEPS)
June 12, 2003 Presentation to the NRC 6
FPL Energy Licensing Precedent Seabrook Station
- Waterford I A similar Technical Specification change (10 Days AOT) was granted to Waterford on July 21, 2000 (Amendment No 166 to NPF-38)
- Crystal River I A similar Technical Specification change (14 days AOT) has been requested by Crystal River on March 20, 2003 (TAC No. MB5616)
Supplemental Emergency Power System (SEPS)
June 12, 2003 Presentation to the NRC 7
FPL Energy Proposed Design Seabrook Station I Two non-safety diesel generators approximately 2.5 MW each I Share Unit 1 services (electrical, fire detection, security, lighting etc,)
I Permanent electrical connections to safety busses I Manual transfer capability between Train A &
Train B I Manually connected using switching operations I Automatic load sequencing with minimal manual load shedding (in accordance with EOPs)
Supplemental Emergency Power System (SEPS)
June 12, 2003 Presentation to the NRC 8
Each Diesel will have its own enclosure.
Each enclosure will have its own exhaust, a dry fire water line and a fuel oil line.
Fueling is expected to be done twice a year. The diesels will be tested periodically.
In addition to the diesel enclosures there will be a switchgear enclosure and a load bank. The load bank will be used for testing. These diesels will only be connected to the station electrical supply under LOOP conditions.
i Supplemental Emergency Power System (SEPS)
June 12, 2003 Presentation to the NRC 9
Cables from the diesels to room will be run underground.
Supplemental Emergency Power System (SEPS)
June 12, 2003 Presentation to the NRC 10 i' A, '
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N Spare Breaker B Essential Switchqear Supplemental Emergency Power System (SEPS)
June 12, 2003 Presentation to the NRC Selectc SwitcdI 11
Bus 5 Cr%-mpa I
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June 12, 2003 Presentation to the NRC 12 I V.;
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Attributes FPL Energy Seabroolc Station I Has capacity for safe shutdown loads I Lower core damage frequency (Approximately 30% reduction from baseline)
I Allows for an extended EDG AOT to perform maintenance I On-line maintenance facilitates greater focus on EDGs Supplemental Emergency Power System (SEPS)
June 12, 2003 Presentation to the NRC 13
FPL Energy Availability Seabrook Station
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- The SEPS will be included in the Technical Requirements Manual as being available I The SEPS will be monitored periodically in accordance standard industry practices Supplemental Emergency Power System (SEPS)
June 12, 2003 Presentation to the NRC 14
Tech Spec Change I EDG allowable outage time increase from 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> to 14 days when SEPS is available Supplemental Emergency Power System (SEPS)
June 12, 2003 Presentation to the NRC FPL Energy Seabrook Station 5
Project Schedule FPL Energy Seabrook Station it,.00 w*!!2, 9 ' 3Z '..
Milestones:
Review Electrcal Loads Develop Preliminary Engineenng Develop Project Plan Project Approval LAR Submitted to NRC SORC Approval of DCR Work Package Planning Complete Field Work Starts LAR Received from NRC SEPS Available 2/14/03 4/1/03 4/1/03 4/7/03 8/29/03 2/11/04 4/23/04 6/28/04 8/27/04 10/21/04 Complete Complete Complete Complete Supplemental Emergency Power System (SEPS)
June 12, 2003 Presentation to the NRC 16
FPL Energy Meeting Summary Seabrook Station y !i, ;: :
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- SEPS will improve defense-in-depth for the emergency AC power system I Improves Core Damage Frequency by approximately 30%
- Submit LAR on August 29, 2003 Supplemental Emergency Power System (SEPS)
June 12, 2003 Presentation to the NRC 17