Lets start out by saying I don't have much experience with services that have a 3 phase delta. I just installed a new 3 phase 400a service for a farm service company. They are going to knock down the old fertilizer plant that required the high leg. There is only one motor that I must reattach, and it is wired up for low voltage 208 3 phase, on a 208/460 motor one phase being high. The company would like the power provider to change the delta to 3 phase Y, so they will be able to use all the breaker space in their new panel, instead of having the panel 1/3 unusable. Will the motor still work or cause any adverse effects?