Event

Time (s)

SB-SG-16

SB-SG-17

SB-SG-18

Break valve open

0

Generation of scram signal

72

68

72

Generation of SI signal

110

118

112

Start of HPI system

None

128

None

Start of intact SG depressurization

800

791

792

Start of primary depressurization

1400

2039

1400

End of HPI system

None

2075

None

End of primary depressurization

7300

2680

6100

End of intact SG depressurization

7300

3706

6100

Start of ACC system

3250

None

End of ACC system

6760

None

Start of manual coolant injection from HPI system into cold legs

None

5157

End of manual coolant injection from HPI system into cold legs

None

6030