Item | Condition | ||
SB-SG-16 | SB-SG-17 | SB-SG-18 | |
Break valve open | Time zero | ||
Generation of scram signal | PZR pressure = 12.97 MPa | ||
Generation of SI signal | PZR pressure = 12.27 MPa | ||
Start of HPI system | None | Soon after SI signal generation | None |
Start of intact SG depressurization | 12 minutes after scram signal generation | ||
Auxiliary feedwater system | Actuation | Total-failure | |
Start of primary depressurization | Primary pressure = broken SG secondary-side pressure | Hot leg fluid temperature in intact loop = 547 K | Primary pressure = broken SG secondary-side pressure |
End of HPI system | None | PZR liquid level = 1 m | None |
End of primary depressurization | End of test | Confirmation of effect of primary depressurization | End of test |
End of intact SG depressurization | End of test | Primary pressure = broken SG secondary-side pressure | End of test |
Start of ACC system | Primary pressure = 4.51 MPa | Total-failure | |
Start of manual coolant injection from HPI system into cold legs | None | Maximum core exit temperature = 623 K | |
End of manual coolant injection from HPI system into cold legs | None | End of test |