ABB RELION REX640 Technical Manual page 1165

1MRS759142 F
Table 1113: Start logic operation
Value of setting CB
failure mode
Current
Breaker status
Both(AND)
Both(OR)
REX640
Technical Manual
Value of setting CB Start logic reset condition
failure trip mode
1 out of 3 All phase currents drop below
setting.
1 out of 4 All phase currents drop below
setting and the residual current drops below
Current value Res setting.
2 out of 4 Either of the following is true:
•
•
CB is in open position.
1 out of 3
1 out of 4
2 out of 4
1 out of 3 Either of the following is true:
•
•
1 out of 4 Either of the following is true:
•
•
2 out of 4 One of the following is true:
•
•
•
1 out of 3 CB is in open position and all phase currents
drop below
1 out of 4 CB is in open position and all phase currents
drop below
sidual current drops below
setting.
2 out of 4 CB is in open position and either of the fol-
lowing is true:
•
Protection related functions
All phase currents drop below
ue setting.
The residual current drops below
value Res setting and (at least) two pha-
Current value setting.
ses are below
CB is in open position.
All phase currents drop below
ue setting.
CB is in open position.
All phase currents drop below
ue setting and the residual current drops
Current value Res setting.
below
CB is in open position.
All phase currents drop below
ue setting.
The residual current drops below
value Res setting and (at least) two pha-
Current value setting.
ses are below
Current value setting.
Current value setting and the re-
Current value Res
All phase currents drop below
ue setting.
Current value
Current value
Current val-
Current
Current val-
Current val-
Current val-
Current
Current val-
1165