480 3 phase industrial motor

[my electric]

Wiring an injection molding machine. Using a phase converter and transformer to achieve 480 volts from single phase power that is available in building.
Have 480 at terminations. But motor will not run.
Do I have to change taps in motor to compensate for phase converter?
Using 230 V to 480 volt transformer ( Delta Delta) 3 hp phase converter.

MY

 

[steveng]

what is the hp of the motor you are wiring?
do you have a 3 phase 480 panel in the bldg ?

 

[eric stromberg]

Is the phase converter 240V that then feeds a three phase 240/480 transformer?
Or is a single phase transformer feeding a 480V converter?

What size is the transformer? You have to allow for inrush in order to start the motor? :-?

 

[kingpb]

Will not run, or will not start? If you could provide some additional details on exactly what happens when you hit the start button, would be helpful.

 

[brian john]

Will not start as the phase converter is TOO SMALL...Just a SWAG

 

[GeorgeB]

Wiring an injection molding machine. Using a phase converter and transformer to achieve 480 volts from single phase power that is available in building.
Have 480 at terminations. But motor will not run.
Do I have to change taps in motor to compensate for phase converter?
Using 230 V to 480 volt transformer ( Delta Delta) 3 hp phase converter.

MY

I don't know what size IMM you have, but the smallest I've seen was 7.5HP, and the barrel heaters consume significant 480/277/240 power as well. I suspect that you are out of phase converter range and need to have a 3ph service from your utility. Most, even old, IMMs have their power requirements on the electrical cabinet. What is the hydraulic pump's motor HP, and what is the heater load?

 

[cschmid]

They make frequency drives that hook up to single phase and run three phase output. I would use this instead of a phase converter even if you don't need a variable speed. especially on smaller loads takes less space and so far have been vary reliable for us.