3
3.1.1 Three-phase four-wire power input terminals: This set of terminals is the
three-phase four-wire power input terminals, which are connected to the power supply
with the matching special four-core cable. Power capacity: 380V/220V·20A.
3.1.2 Output terminals of three-phase power: This set of terminals is the output terminal
of three-phase four-wire 380V power supply, and the four-core cable is connected to the
three-phase power input aviation socket of hZ-139S three-phase large-current host.
3.1.3 Three-phase voltage output terminals: This set of terminals outputs the 0 ~ 430V
three-phase voltage after voltage regulation. Connect the terminals with a three-core
cable to the input socket of the voltage regulator of the hZ-139S three-phase
large-current host.
3.1.4 Three-phase large current adjustment knob: it is used for the adjustment of
three-phase large current.
3.1.5 Output button: Press this button, the three-phase voltage regulator is in output state,
and the button indicator is on.
3.1.6 Cut out button: Press this button, the three-phase voltage regulator is cut out, and
the output button indicator light is off.
3.1.7 Grounding terminal, for the safety of use, this terminal should be grounded during
use.
(II) HZ-139S three-phase large-current tester panel
