Transformer Question

[Sierra West]

I have a machine that runs on 480 volts only and my incoming power is 240 3 phase delta with a stinger leg. I have a transformer that is delta primary and wye secondary. I would like to know if this will work connecting the 240 volt delta to the wye secondary or if I need a transformer with a delta secondary and delta primary. This transformer's secondary is 200 volts and has multiple taps on the primary side from 240 to 480 volts.

 

[augie47]

The delta/wye is not a problem (you would ignore the neutral), however, I thing you would be ill advised to connect the 200 volt rated secondary to your 240 volt system.