240 Delta to 480 Delta

[kwired]

Thanks Guys for the responses, the saw/motor came from an old facility with 480 service and the new building only has 240 available thats why we stepped it up, theres other components requiring 480 thats why the motor wasn't reconfigured for 240.
The new transformer is rated for step up. Its been several years since I did a new corner grounded system so wanted to double check myself so i don't let the smoke out. I appreciate all the info.

Can't tell you what you have, most machinery like that I ever encounter will have dual voltage motors and a 480 x 120 control transformer. Often dual voltage primary on the control transformer so it can also be easily configured for 240 volts. Motor overloads will ordinarily need changed if you change voltage.

If this is a small machine - as in only 5-10 HP max, many smaller transformers would not be rated for reverse feed, if that is what you are doing. Even if it does work, it likely has more inrush current then one wound for step up. A transformer wound for step up is more likely to have a wye secondary, is why I mention that.