Alstom MiCOM P54 Series - 4.1.7 Main operating features (P543;P545); 4.1.7.1 Auto-reclose modes (P543;P545)

Operation P54x/EN OP/La4
MiCOM P543, P544, P545 & P546 (OP) 5-141
OP
Trip 3ph
AR3 in Prog
AR Close
Force 3 Pole
Reclaim Time
SYNC
P1026ENb
Figure 88 Auto-reclose timing diagram - fault with system synchronism
Trip 3 ph
AR3 in Prog
AR Close
Force 3 Pole
Reclaim Time
SYNC
AR Fail
P1027ENb
Figure 89 Auto-reclose timing diagram - lockout for no checksynch
4.1.7 Main operating features (P543/P545)
4.1.7.1 Auto-reclose modes (P543/P545)
The auto
-reclose function has three operating modes:
Single Pole Auto-reclose
Three Pole Auto-reclose
Single/Three Pole Auto-reclose
Single pole and three pole auto-reclose modes can be selected from opto inputs assigned
for En 1 Pole Reclose and En 3 Pole Reclose respectively. Energizing both opto inputs
would select the single/three pole operating mode. Alternatively, the settings Single Pole
A/R - Enabled/Disabled and Three Pole A/R - Enabled/Disabled in the CB Control menu
can also be used to select the operating modes. How these operating modes affect the
operating sequence is described above.