Motor Operated Mechanism 1 - ABB ZX0 Manual For Installation And Operation

4.1.2.3

Motor operated mechanism 1

When motor operated mechanism 1 (figure 4.1.2.3.1) is used,
switching operations on the panel are performed by means of a
control unit. The three position disconnector is electrically inter-
locked against the closed circuit-breaker. The earthing switch can
only be operated when the disconnector is open, and vice versa.
Switch position indication is effected by the display on the control
unit used.
4.1.2.3.1 Emergency manual
operation
− Open the low voltage compartment door for manual opera-
tion of the mechanisms.
Opening of the low voltage compartment door con-
stitutes intervention in the interlock system.
Protection against maloperation is cancelled.
Switch the mcbs for the motor operated mechanism of the three
1)
position disconnector and for the circuit breaker mechanism (re-
leases and charging motor) off.
mcb: miniature circuit-breaker
1)
46 | Manual ZX0 HB 600 en - Revision 05
A
Detail A