ABB RELION REX640 Technical Manual page 1075

1MRS759142 C
REX640
Technical Manual
Table 1008: Start logic operation
Value of setting CB Value of setting CB
failure mode failure trip mode
Current 1 out of 3
1 out of 4
2 out of 4
Breaker status 1 out of 3
1 out of 4
2 out of 4
Both(AND) 1 out of 3
1 out of 4
2 out of 4
Both(OR) 1 out of 3
1 out of 4
2 out of 4
In addition, the function is immediately reset if:
Protection related functions
Start logic reset condition
All phase currents drop below
setting.
All phase currents drop below
setting and the residual current drops below
Current value Res setting.
Either of the following is true:
• All phase currents drop below
setting.
• The residual current drops below
value Res setting and (at least) two phases
Current value setting.
are below
CB is in open position.
Either of the following is true:
• CB is in open position.
• All phase currents drop below
setting.
Either of the following is true:
• CB is in open position.
• All phase currents drop below
setting and the residual current drops below
Current value Res setting.
One of the following is true:
• CB is in open position.
• All phase currents drop below
setting.
• The residual current drops below
value Res setting and (at least) two phases
are below Current value setting.
CB is in open position and all phase currents drop
Current value setting.
below
CB is in open position and all phase currents drop
Current value setting and the residual
below
Current value Res setting.
current drops below
CB is in open position and either of the following is
true:
• All phase currents drop below
setting.
• The residual current drops below
value Res setting and (at least) two phases
Current value setting.
are below
Section 5
Current value
Current value
Current value
Current
Current value
Current value
Current value
Current
Current value
Current
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