Operating Sequence - ABB VD4 Instruction Manual

6.3.3 Operating sequence

Circuit-breaker with motorized charging of the stored-energy spring mechanism
Operating sequence
Switch on charging motor
Automatic charging
Close breaker... and
automatically (re-)charge
Open breaker
Close breaker... and
automatically (re-)charge
Autoreclosing Off
sequence
(Activation via On
protection system)
Off
Automatic charging completed
Close breaker... and
automatically (re-)charge
22 Commissioning/Operation | VD4 Vacuum Circuit-breaker
Result of operation
Breaker Position Charging Condition
O
O
I
I
O
I
I
O
I
O
O
I
I
Possible subsequent
switching operation
-
On-Off
Off
Off-On-Off or auto-
reclosing sequence
On-Off
Off
Off-On-Off or auto-
reclosing sequence
(automatic charging starts)
On-Off
Off
Off-On-Off or auto-
reclosing sequence