ML050400321
| ML050400321 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 01/28/2005 |
| From: | Progress Energy Co |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML050400316 | List: |
| References | |
| Download: ML050400321 (65) | |
Text
BNP - USNRC Region II Update Neil Gannon January 28, 2005
Introductions
z Neil Gannon Site Vice-President z Tim Cleary Director of Site Operations z Ed Quidley Manager of Outage &
Scheduling z Ed ONeil Manager of Nuclear Services & Reg. Affairs z Allen Brittain Superintendent of Security
Todays Discussion Topics z Introduction & Overview Neil Gannon z Plant Update Tim Cleary z Outage and EPU Ed Quidley z EP Update & License Renewal Ed ONeil z Security Allen Brittain
Company Organizational Changes z Skip Orser, Energy Supply Group President retirement effective March 1, 2005. The position will not be re-filled.
z Bill Johnson promoted to President and Chief Operating Officer, Progress Energy Inc.
z CNO, Scotty Hinnant, will report directly to Bill Johnson
Brunswick Management Changes z Tim Cleary, Director-Site Operations z Annette Pope, Manager Maintenance
Voluntary Early Retirement z Large Number Eligible Employees z Election Period March 15 to April 15 z Effective Dates June 1 to December 1 z Retention Caps Pre-Determined z Knowledge Transfer in Process
Brunswick Plant Update Tim Cleary
Plant Status Unit 1 100% Power 162 Days in service Unit 2 93% Power 178 Days in service Coast in progress Unit 2 Refueling Outage - March 5 Unit 1 Mid-Cycle Outage - April 15
Plant Update z 2004 Highlights Full Compliance with Security Orders License Renewal Submittal Lowest Radiation Exposure Year Ever Triennial Fire Protection Insp.
Graded Emergency Preparedness Exercise Unit 1 Power Uprate to 120%
Plant Update z 2004 Challenges Forced outages Fuel reliability Human Performance Switchyard Performance
BNP 2004 Y-T-D Capacity Factor 80 82 84 86 88 90 92 94 96 98 100 Mar-04 Apr-04 May-04 Jun-04 Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Capacity Factor (%)
ACTUAL GOAL EOY Goal:
96.36%
Unit 2 drywell leakage Unit 2 vacuum breaker Unit 1 LOOP
2004 HU Events z Motor Removed from Wrong Recirc Valve z Diver Radiation Exposure Administrative Limit Exceeded z EDG Load Shed Relay Cover Mispositioned
0 50 100 150 200 250 300 1
Rem Cumulative Actual Dose Cumulative Dose Goal Site Exposure Target = 240 Rem Total 2004 Exposure = 244.6
PCB 24B Failures z 8/14/2004 - Hurricane Charley exiting service area z Transmission Line Insulator Failed z PCB 24B cycled open as designed, but fault current was erroneously still detected which resulted in B 230KV bus lockout; LOOP to U1.
z PCB 24 B was repaired and returned to service.
2nd Failure; Reason for Fault z October 2004 - PCB 24B failed again.
z Based on Visual Inspection and Vendor Input
- B Phase Bus Side Bushing Experienced Internal Fault z Bushing Sent to ABB for Analysis z Determined that standard pressure test had not been performed & would have identified assembly error z Newly Installed & Recent Shipment (3) Rebuilt Bushings were pressure tested within spec.
Bushing Bottom Lower Porcelain Stem Flange Upper Porcelain Top
Upper Flange
PCB leaks z Breaker returned to service following rebuild z PNSC reviewed investigation on 12/15/04 z Identified 8 additional PCBs requiring maintenance due to minor leaks z PCB 24B determined to be highest priority z PCB 24 B removed from service for leak repair on January 4, 2005 z Bushings replaced from stock obtained from ABB rebuild facility
2A BUS 2B BUS 230kV 230kV 89-26B 89-26A M
M UNIT 2 1A BUS 1B BUS 230kV 230kV 89-25B 89-25A M
M UNIT 1 20 21 22 23 24 EAST HAYNE CASTLE JACKSONVILLE EAST DELCO WEATHERSPOON 31 30 29 28 27 WHITEVILLE WEST DELCO WALLACE Wilmington Corning (MOD)
(MOD)
(MOD)
(MOD)
Legend 5 - Repair Leak w/breaker in Service 8 - Repair Leak w/breaker Out of Service Service 11 - No Leaks Detected
Sample Leak Locations
3rd Bushing Failure z 1/7/05 - Bushing Failed During Restoration PCB Was Open z Shipped to ABB 1/9/05 z Observations - Teardown in Carson, CA Personnel Not Using Checklist Adhesive was Inadequate Personnel Training was Inadequate Chain Hoist was used vs. Cable Hoist
24B PCB Photos
24B PCB Photos
Plans z ABB Review With Station Management z Continue with Leak Repairs on Low Risk Leaks (PCB in Service) z Witness Bushing Rebuilds to Gain Confidence z Return PCB 24B Back to Service z Determine if correlation between as-found leak rates and time to failure z Present Plan for Repairing Leaking PCBs z Evaluate Possible Compensatory Measures until leaking PCBs can be repaired
U2 Spring Refuel Outage Ed Quidley
B217R1 Outage Overview z Outage begins 3/5/05 z Duration: 30 days (breaker to breaker) z Final EPUR outage z Critical path - Electrical Systems/Refuel Floor
Extended Power Uprate Margin Improvements Plant Change Margin Impact SLC Boron Increase (ATWS)
Improves SLC Margin Requires only 1 Pump Versus 2 for ATWS Power Range Instrumentation Improves Operating Margin, Operator Interface and reduces required Maintenance/Testing Addresses Obsolescence Upgrade Condensate &
Feedwater Provides Standby Pumps and Increased Capacities Accommodates Feedpump Trips for all Power Levels Power System Stabilizer Improves Grid Stability
Steam Dryer z Prompted by Quad Cities failures z GE recommended design changes BNP has a less susceptible design Based on very conservative load calculations z Design changes Increases weld size to strengthen vulnerable areas Adds Gussets for additional support Significantly improves design margin
Relative Stresses on Dryer Hood z Square Hood Quad Cities Design z Slanted Hood Brunswick Design z Curved Hood BWR 6 Design
Steam Dryer Modification Top of Outer Hood (2003 Failure Location)
Cover Plate (2002 Failure Location)
Quad Cities Dryer Failures Only the first Quad Cities failure is a liability for BNP
Steam Dryer Modification z Scope z Modify welds (increase bead size) on the steam dryer cover plate (including manway).
z Install gusset plates to the Outer Bank Hood
@ 90 and 270 degrees.
z Replace all ten tie bars on the top of the steam dryer.
Steam Dryer Modification Lower Cover Plate (one of two)
Tie bars Install Gusset Plates
B217R1 Outage Overview z Electrical Systems (26.6 days)
DG Test Sequence Main Transformer Replacements SAT Work - Including Breaker Mod Installation 2D, E3, E7 Bus Outages
B217R1 Outage Overview z Refuel Floor Work (24.75 days)
Steam Dryer Modification RPV Disassembly/Reassembly Fuel Shuffle Blade Exchange LPRM Replacements ILRT Hydro
B217R1 Outage Overview z Turbine Inspections (25.2 days)
Low Pressure Rotor (B) 10 Year Inspection Crossover Relief Valve Replacements (EPUR)
Turbine Casing Leak Repair MSR Shielding Mod Routine Outage Inspections and Repairs
B217R1 Outage Overview z Service Water System (17.1 days)
Nuclear SW Inspection and Repairs RHR SW Repairs (Includes Conventional Header)
B115M1 Outage Plan z Scheduled to begin on 4/15/05 z 8 Day Schedule z Avoids unplanned peak season impact z Two significant drivers Fuel leaks DW Floor Drain inleakage z Challenges Refuel Floor preparations DW leakage repairs
Emergency Preparedness and License Renewal Ed ONeil
2004 BNP EP Drills z Strong Drill Focus on EP/Operations/Security Integrated Response EP/Operations/Security Integrated Drills Physical Attack Involving Imminent Occupancy Intruder VA Penetration Permitted Control Room Participation Offsite SWAT Response into PA Imminent Threat To Plant Safety Telephone Threat K-9 PA Response
2004 BNP EP Driils z Imminent Threat To Plant Safety Loss of Large Area (table-top)
County EMS, Local & State Law Enforcement, Fire Response Team Mass Casualties z Toxic Fume Release NC Regional Hazmat Response Team Team & Equipment Response into PA
BNP EP z EP Evaluated Exercise Completed 11/16/04 RASCAL Implementation Fleet RASCAL Capability z Additional Offsite Response (REACTS) Trng.
32 First Responders, EMT, Nurses, MDs z Hurricane Charley EP Facilities Staffed NRC/FEMA Restart Authorization
BNP EP Looking Forward z Continued Focus on:
Off-Site Response Organization Communications & Coordination Strengthening Memorandums of Understanding Practice, Practice, Practice Identify and Apply Lessons Learned
License Renewal Milestones z Submitted 10/25/04 z Deadline for hearing requests was 01/21/05 z RAIs issued May 2005 z Final public meeting on SEIS October, 2005 z Regional Administrators letter May, 2006 z SER issued June, 2006 z ACRS July, 2006 z Commission Decision April, 2007 (Sept. 2006 if no public hearings)
Security Briefing Allen Brittain
Owner Controlled Area (OCA)
Access Control Point (ACP)
Vehicle Barrier System (VBS)
Natural Barriers
OCA Protection Measures
Waterborne Protection
Waterborne Protection
Waterborne Protection
Adversary Delay Barriers
Adversary Delay Barriers
Welded Razor Fence
Protected Area Protection Measures
Primary & Secondary Fighting Positions
Sighting Devices
LLEA Response & Coordination z Emergency Preparedness Drills z Force-on-Force Drills z Table Top Drills z Self Assessments z LLEA OCA Patrol
Focus Areas z Progress Energy Composite Adversary Team
- Four from each site currently trained z Metal detector replacement z OCA CCTV monitoring - 6 additional positions z Continue to train and evaluate defensive strategy (Emergency Preparedness, Operations and Security)
BNP - USNRC Region II Update Neil Gannon 2005 Focus Areas
BNP Focus - 2005 z Safely Operate the units z Safely complete the U2 Outage z Successfully complete OSART May 2005 z Manage Organizational Transition - VERP
BNP - USNRC Region II Update Questions