How to setup a 3-phase 240V to 480V transformer?
It should be a six lead motor.
There is probably a diagram on the nameplate showning the lead
numbers which will be marked in the motor junction box.
in general the wiring scheme is:
480V. 240V.
Com. Ph.A Ph.A Ph.A
.| |. .| |.
/ \ / \
coil coil coil coil
Ph. C _./ \._ Com. Ph. C_./ \._ Ph. B
Com.-.___coil___._ Ph.B Ph. C -.____coil___._ Ph. B
Com.= leads tied together.
Be careful to get the rotation right.
Sorry but this dinky little diagram is the best I can do.
MadDog
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