Stop making me jealous.... the power company wants to charge me $4800 to upgrade the service from 150A single phase to 400A single phase.... Thats because im at the end of the line so Id need my own transformer. Great no problem, but the current pole is a 4' neutral instead of a 6' neutral so I have to get a new pole on my dime. Great. If I wanted 3 phase they would have to upgrade each upstream pole to the main road to the tune of $9000 each and thats 4 poles. Thats like $40000 they want....
So If I want to run my milling center (nameplate 25kva 3ph 208, 60a breaker) I have to cringe whenever the contactor initially closes to charge the caps in the drive controller, it makes my 3ph idler motor that generates my 3rd leg jump off the floor an inch.
Ive considered running it off a MEP but the only TRUE 3phase loads on the mill are the 2 coolant pumps, the chip auger, and the cooling fan for the spindle. Everything else is single phase or is a 3 phase bridge rectifier to a bank of caps which it inverts (like how the 831s work)