This presentation describes potential simulator model changes as a result of the accident at Fukushima Daiichi Nuclear Power Plant. For more information, go to GSES.com, email info@gses.com, and follow us on Twitter @GSESystems and Facebook.com/GSESystems. Thanks for viewing!

1. Potential Model Changes as a
Result of Fukushima
info@gses.com

2. 2
FLEX
• Portable diesel generators
• Portable pumps
– Diesel generator driven
– Electrical powered
• Who is setting these up?
• Who is operating them?
• Who is controlling their operation?

3. 3
Electrical System Upgrades
• New batteries
– Additional batteries
– Larger batteries
• New chargers
– For new batteries
– Capability to cross connect
• Portable diesels
– Starting and operation
– Dynamic effects of starting loads

4. 4
Electrical System Upgrades
• Cross connection capabilities
– At the 480 vac bus level
– At the DC level
– At the instrument bus level
– Individual loads
– Manual cable installation
– Manual transfer switches
– Auto transfer switches

5. 5
Electrical System Upgrades
• Granularity of loading
– DC busses
– Instrument busses
– Are “key” individual loads accounted for?
– Is everything a lumped load
• Do you have control of the lumped load?
• Granularity of configuration
– Do you have the capability to shift all loads onto
train ‘A’ so you can save train ‘B’?

6. 6
Electrical System Upgrades
• Granularity of configuration
– Can you strip the key non-essential loads?
– Is the loading dynamically accounted for on the
instrument busses and ultimately the battery?
– Who is stripping these loads?
• Non-licensed operators?
• How are you controlling this from the
simulator?
– New graphics for in-plant panels

7. 7
Electrical System Upgrades
• Operation at reduced bus voltages
– Are loads individually coded for bus voltages?
– Or are the busses only true or false?
• Battery dynamics
– Large discharge rates
– Extended discharge at varying rates
• UV relays
– Are they on/off?
– Set and reset
– Time delays

8. 8
Instrumentation
• Are the instruments powered correctly?
– Correct source
– Correct failure mode
– Recorders
– Transmitters
– Indicators

9. 9
Communications
• Are the power supplies for your
communications in the simulator models?
– Paging system
– Phone system
– Radio system
– How long do the UPSs last for these systems?
• How are you charging the radio batteries?

10. 10
Human Elements
• Limited access to site?
– Watch turnovers
– Additional support
– ERO
• Installing FLEX equipment

11. 11
Plant Changes
• Procedure changes
– Are they going to affect the level of fidelity
needed in the simulator to support?
• Plant physical changes
– What needs to be modeled in the simulator?
– How are we going to model the added
flexibility that has not been available in the
past?

12. 12
Funding
• Becoming part of the plant modification
team
• 2-step approach
– Upgrade model now
– Add detailed functionality later
• Is funding available now?

13. 13
Local Panel Visualizations
• Diesel panels
• Switchgear
• DC breaker panels
• Other local control panels
• FLEX equipment
– Pump connections
– DG control and connection
– Cross-connection installation

14. For more information:
Go to: www.GSES.com
Call: 800.638.7912
Email: info@gses.com
Follow us on:
Twitter @GSESystems
Facebook.com/GSESystems