ML071410388
| ML071410388 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 05/17/2007 |
| From: | Dedrickson R, Stringfellow J, Tynan T Southern Nuclear Operating Co |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML071410382 | List: |
| References | |
| Download: ML071410388 (32) | |
Text
Vogtle Electric Generating Plant NRC Region II Status Meeting May 17, 2007 Tom Tynan - Vogtle Vice President Russ Dedrickson - Plant Manager Jack Stringfellow - Licensing Manager Southern Nuclear Operating Company Enclosure 2
Agenda
- Introduction
- Vogtle Project Overview
- Plant Performance
- Site Vice President Reorganization
- Major Focus Areas
- Major Projects
- Pressurizer Nozzle Structural Weld Overlays
- Measurement Uncertainty Recapture Power Uprate
- ECCS Sumps and Downstream Effects Modifications
- Steam Generator Chemical Cleaning
- Pipeline Replenishment
- Open Discussion Enclosure 2
Plant Performance Enclosure 2
2006 Plant Vogtle Average Daily Power Levels Unit 1 Unit 2 1400 Unit 2, Unplanned, RHR 3/4 bypass line weld leaks Unit 1, Coastdown 2/3 - 2/15 3/20 - 4/2 9/16 -9/17 1200 1000 Unit 1, Unplanned Derated to repair Heater Drain Pump B 5/31 - 6/5 800 Unit 2, Unplanned Auto Rx Trip-A short circuit occurred on one of the high voltage cables in the motor connection box for RCP 600 #4. Human Performance 8/27 - 9/1 400 Unit 1, S/G Level Control Failure (Feed Reg Valve),
Conoseal leak Unit 2, Unit 1, Refueling 200 Unplanned, CETNA/replacement, Isophase Bus Duct repair 9/17 -
EHC leak 4/16 - 4/24 2/1 - 2/3 0
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Enclosure 2
2007 Plant Vogtle Average Daily Power Levels Unit 1 Unit 2 1400 1200 1000 Unit 2, Planned, Scheduled Refueling Outage 800 Unit 2, Unplanned, Derated due to 3/4 - 4/22 49 days, 0.4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> power supply failure during flux 600 mapping surveillance 2/20 - 2/22 Unit 2, Unplanned, 400 Automatic Rx Trip on generator trip from overcurrent relay 4/23 - 5/4 200 0
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Enclosure 2
Unit 2 Reactor Trip April 23, 2007
- On April 23, 2007, Unit 2 experienced an automatic reactor trip on P-9 due to a main generator trip (fault protection relay).
- The cause was determined to be a fault which resulted from a very small water leak from a cooling line to the A phase generator bushing.
- Over time, water from the leak seeped into the tape around the bushing eventually resulting in a fault.
- Root cause analysis is underway.
Enclosure 2
Unit 2 Reactor Trip April 23, 2007 Enclosure 2
Unit 2 Reactor Trip April 23, 2007 Enclosure 2
Unit 2 Reactor Trip April 23, 2007 Enclosure 2
INPO Index - Vogtle Enclosure 2
Forced Loss Rate - Vogtle Enclosure 2
Industrial Safety - Vogtle Enclosure 2
NRC Performance Indicators - Vogtle Enclosure 2
NRC Performance Indicators - Vogtle Enclosure 2
NRC Performance Indicators - Vogtle Enclosure 2
NRC Performance Indicators - Vogtle Enclosure 2
NRC Performance Indicators - Vogtle Enclosure 2
NRC Performance Indicators - Vogtle Enclosure 2
NRC Performance Indicators - Vogtle Enclosure 2
NRC Performance Indicators - Vogtle Enclosure 2
NRC Performance Indicators - Vogtle Enclosure 2
Site Vice President Reorganization Enclosure 2
Site Vice President Reorganization - January 2007 J. B. BEASLEY, JR.
Chairman, President & Chief Executive Officer S. A. MITCHELL Asst. Corp. Sec./Exec.
Asst. to Pres./Asst. Treas.
K. S. KING D. H. JONES M. M. CASTON J. T. GASSER R. A. BELL* J. A. MILLER CFO & Vice President Engineering General Counsel, Executive Vice President Human Res. Sr. VP Senior Vice President VP External Affairs &
Corporate Services Vice President Corporate Secretary & Chief Nuclear Officer Southern Company Nuclear Development J. G. WOLFE B. J. GEORGE A. F. THORNHILL W. D. DRINKARD Vogtle 3&4 Comptroller & Managing Atty. & Quality Assurance L. M. STINSON Nuclear Licensing Treasurer Manager Compliance Manager Manager Fleet Operations Support Bellefonte Vice President C. D. COLLINS B. E. HUNT C. H. PHILLIPS Supply Chain Nuclear Fuels Public Affairs Manager General Manager Manager P. R. BIZJAK J. M. GODFREY D. P. BURFORD W. L. Nuclear Fleet Security Safety & Health BURMEISTER Environmental Affairs Manager Manager and Emergency Plant Support Preparedness Manager Manager VACANT
- P. A. HURST H. R. Director A. HARRIS Corporate Concerns W. B. THIGPEN W. H. LEE Engineering Supervisor Security Emergency Planning Services Manager Supervisor/Access Supervisor Authorization G. K. McELROY Engineering Admin.
Services Manager J. R. JOHNSON T. E. TYNAN D. R. MADISON J. B. PAPPAS Vice President - Farley Vice President - Vogtle Vice President - Hatch Configuration Management Manager W. L. BARGERON T. L. YOUNGBLOOD S. M. DOUGLAS M. J. AJLUNI Plant Manager Site Support Plant Manager Site Support Manager Manager C. R. DEDRICKSON J. D. WILLIAMS Plant Manager Site Support Manager 0407
- SCS Employee Enclosure 2
Major Focus Areas Enclosure 2
Major Focus Areas
- Equipment Reliability
- Implementing Effective Design Modifications
- Corrective Action Program
- Trending
- Work Force Engagement
- Engage workforce on major problems and solutions
- Plant Status Control
- Misposition Performance Indicator Enclosure 2
Major Projects Enclosure 2
Major Projects
- Pressurizer Structural Weld Overlays
- NRC Approved Alternative ISI-GEN-ALT-06-03 March 8, 2007 and Revised April 3, 2007
- Six Unit 2 Alloy 82/182 pressurizer nozzles completed during Spring 2007 (2R12) Refueling Outage
- Unit 1 scheduled for Spring 2008
- Contingent on enhanced RCS leakage monitoring, action levels, and actions (March 6, 2007 letter, J.T. Gasser to USNRC)
- Commitment and contingency plans to shut down in 2007 if further industry developments do not support reasonable assurance of waiting until Spring 2008
- Confirmatory Action Letter dated March 12, 2007 Enclosure 2
Major Projects
- Approximately 1.7% increase in Rated Thermal Power
- Based on installation of Caldon Feedwater Flow Measurement Instrumentation
- In addition, other major modifications include new high pressure turbine and higher capacity heater drain pumps
- Scheduled for implementation Spring 2008 for Unit 1 and Fall 2008 for Unit 2
- NRC Submittal Summer 2007 Enclosure 2
Major Projects
- New Unit 1 sumps installed Fall 2006
- Extension on downstream effects modifications for Unit 1 granted by NRC until Spring 2008
- New Unit 2 sumps AND downstream effects modifications completed during Spring 2007 outage
- RHR sump screens increase in surface area by ~1400%
and containment spray screens by ~1075%
- Downstream effects modifications involve installation of header orifice to allow throttle valves to be opened up Enclosure 2
Major Projects
- Steam Generator Chemical Cleaning
- Unit 1 completed Fall 2006
- Unit 2 completed Spring 2007
- Materials removed during chemical cleaning (in pounds from all 4 steam generators): Unit 1 Unit 2
- Iron Oxide 5990 4303
- Copper (metal) 91 66
- Nickel Oxide 205 128
- Other Oxides 196 119
- Sludge 337 341
- Total Material Removed 6819 4957 Enclosure 2
Major Projects
- Pipeline Replenishment
- Strategies for hiring entry level workers and engineers
- License classes
- 14 candidates to finish this summer
- 15 candidates to start in Fall 2007
- 16 candidates to start in Fall 2008
- Average class size of 16
- All other initial programs up and running (Chemistry, HP, Maintenance, etc.)
Enclosure 2
Open Discussion Enclosure 2