Maintenance and Troubleshooting SR-100i User’s Manual
230/460V 60 Hz TRANSFORMER CONFIGURATIONS
230V 60 Hz and 460V 60 Hz power supplies are shipped with a dual voltage main
transformer TR1. The primary taps on TR1 are labeled with their corresponding
voltages. To change the operating voltage for these systems, perform the
following procedures.
230V 60Hz Operation
For 230V operation, install a #8 AWG jumper wire from 0V to 0V on each
primary winding of the transformer (total of 3 wires). Install a second #8 AWG
jumper wire from 230V to 230V on each primary winding of the transformer
(total of 3 wires). Now install a #8 AWG jumper wire from 0V on the first
primary winding to 0V on the second primary winding and another #8 AWG
jumper wire from 0V on the second primary winding to 0V on the third primary
winding. Connect the three phase primary power from the main contactor to one
of the 230V connections on each primary winding. See Figure 5-1.
When the
primary voltage of TR1 is changed, the control transformer TR2 must also
be rewired for the correct service voltage
. For 230V operation, connect the
white wire of control transformer TR2 to TB2-13, connect the brown wire to
TB2-14, and connect the red/white wire to the side terminal of fuse F1.
460V 60Hz Operation
For 460V operation, install a #8 AWG jumper wire from 0V to 230V on each
primary winding (total of 3 wires). Now install a #8 AWG jumper wires from 0V
on the first primary winding to 0V on the second primary winding and another #8
AWG jumper wire from 0V on the second primary winding to 0V on the third
primary winding. Connect the three phase primary power from the main
contactor to each of the 230V connections that are
without
jumper wires. See
Figure 5-2.
When the primary voltage of TR1 is changed, the control
transformer TR2 must also be rewired for the correct service voltage
. For
460V operation, connect the white wire of control transformer TR2 to TB2-13,
connect the brown wire to TB2-14, and connect the black wire to the side terminal
of fuse F1.
5-4
Содержание SR-100i
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