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 Vogtle Electric Generating Plant NRC Region II Status Meeting NRC Region II Status Meeting May 17, 2007 May 17, 2007 Tom Tynan - Vogtle Vice President Russ Dedrickson - Plant Manager Jack Stringfellow - Licensing Manager Southern Nuclear Operating Company
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
Plant Performance
0 200 400 600 800 1000 1200 1400 2006 Plant Vogtle Average Daily Power Levels Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Unit 1 Unit 2 Unit 2, Unplanned, RHR 3/4 bypass line weld leaks 2/3 - 2/15 3/20 - 4/2 Unit 2, Unplanned, EHC leak 2/1 - 2/3 Unit 1, S/G Level Control Failure (Feed Reg Valve),
Conoseal leak CETNA/replacement, Isophase Bus Duct repair 4/16 - 4/24 Unit 1, Unplanned Derated to repair Heater Drain Pump B 5/31 - 6/5 Unit 2, Unplanned Auto Rx Trip-A short circuit occurred on one of the high voltage cables in the motor connection box for RCP
- 4. Human Performance 8/27 - 9/1 Unit 1, Coastdown 9/16 -9/17 Unit 1, Refueling 9/17 -
2007 Plant Vogtle Average Daily Power Levels 0
200 400 600 800 1000 1200 1400 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Unit 1 Unit 2 Unit 2, Unplanned, Derated due to power supply failure during flux mapping surveillance 2/20 - 2/22 Unit 2, Planned, Scheduled Refueling Outage 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 /> Unit 2, Unplanned, Automatic Rx Trip on generator trip from overcurrent relay 4/23 - 5/4
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.
Unit 2 Reactor Trip April 23, 2007
Unit 2 Reactor Trip April 23, 2007
Unit 2 Reactor Trip April 23, 2007
INPO Index - Vogtle
Forced Loss Rate - Vogtle
Industrial Safety - Vogtle
NRC Performance Indicators - Vogtle
NRC Performance Indicators - Vogtle
NRC Performance Indicators - Vogtle
NRC Performance Indicators - Vogtle
NRC Performance Indicators - Vogtle
NRC Performance Indicators - Vogtle
NRC Performance Indicators - Vogtle
NRC Performance Indicators - Vogtle
NRC Performance Indicators - Vogtle
Site Vice President Reorganization
J. B. BEASLEY, JR.
- Chairman, President & Chief Executive Officer K. S. KING CFO & Vice President Corporate Services M. M. CASTON General Counsel, VP External Affairs &
Corporate Secretary W. L. BARGERON Plant Manager J. D. WILLIAMS Site Support Manager W. D. DRINKARD Quality Assurance Manager M. J. AJLUNI Site Support Manager
- SCS Employee Site Vice President Reorganization - January 2007 0407 R. A. BELL*
Human Res. Sr. VP Southern Company D. R. MADISON Vice President - Hatch J. R. JOHNSON Vice President - Farley T. E. TYNAN Vice President - Vogtle T. L. YOUNGBLOOD Site Support Manager C. R. DEDRICKSON Plant Manager S. M. DOUGLAS Plant Manager S. A. MITCHELL Asst. Corp. Sec./Exec.
Asst. to Pres./Asst. Treas.
P. R. BIZJAK Safety & Health Manager C. D. COLLINS Supply Chain General Manager VACANT
- H. R. Director J. G. WOLFE Comptroller &
Treasurer J. T. GASSER Executive Vice President
& Chief Nuclear Officer A. F. THORNHILL Managing Atty. &
Compliance Manager C. H. PHILLIPS Public Affairs Manager J. M. GODFREY Environmental Affairs Manager W. H. LEE Emergency Planning Supervisor J. A. MILLER Senior Vice President Nuclear Development D. P. BURFORD Nuclear Fleet Security and Emergency Preparedness Manager Vogtle 3&4 Bellefonte D. H. JONES Engineering Vice President W. L.
BURMEISTER Plant Support Manager A. HARRIS Engineering Services Manager G. K. McELROY Engineering Admin.
Services Manager J. B. PAPPAS Configuration Management Manager B. E. HUNT Nuclear Fuels Manager B. J. GEORGE Nuclear Licensing Manager W. B. THIGPEN Security Supervisor/Access Authorization P. A. HURST Corporate Concerns Supervisor L. M. STINSON Fleet Operations Support Vice President
Major Focus Areas
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
Major Projects
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
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
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
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
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.)
Open Discussion