RPS Flashcards
1
Q
Why is a reactor startup accident a concern?
What RPS functions protect?
A
Is a concern because MTC and doppler are not yet providing inherent stability.
SR trip
IR trip
PR low flux trip
2
Q
What protects against a reactor overpower accident?
A
OPdeltaT at 107.2%
Positive rate trip at +5%/2 seconds
3
Q
What protects against a reactor integrity accident?
A
PZR high pressure trip
PZR high level trip
4
Q
What protects against a reactor DNB accident?
A
OTdelta T trip
PZR low pressure trip
PR hi flux trip
Loss of flow (RCP related P7 trips)
5
Q
What protects from loss of heat sink?
A
SG lo-2 level 18% (36.3%)
Turbine trip
6
Q
Purpose of SI trip
A
To limit accident consequences
7
Q
Purpose of general warning trip
A
To maintain protection capabilities
