Physics Testing validates predicted core and operating parameters at the end of a refueling outage and is the last challenge to get the reactor back online.
Typical Outage Sequence Backend
Critical Path
Core
reload and verification
arrow_forward_ios
Reactor reassembly
to Mode 5
arrow_forward_ios
Mode 5
to Mode 4
Cold Shutdown to
Hot Shutdown
Hot Shutdown
arrow_forward_ios
Start Mode
4 to Unit
On-line
VIEW DETAILED
SEQUENCE
expand_more
arrow_forward_ios
Unit On-line
to 100%
Power
Detailed Sequence
close
Heat up
Mode 4 to Mode 3
Mode 4 to Mode 3
Secure Residual
Heat Removal
Heat Removal
Enter
Mode 3
Mode 3
RTD Cross
Cals
Cals
Hot Rod
Drop Tests
Drop Tests
Dilute to
Critical
Critical
Low Power
Physics Testing
Physics Testing
Auxiliary
Feedwater Testing
Feedwater Testing
Enter Mode 2
(≤5% Power)
(≤5% Power)
