I'm connecting three phase step down auto transformer. 400V input and 230V output. It's to supply a piece of equipment brought over from America and the load won't be balanced.
My question is, is the star point common for both the line and load side neutral connections? I'm leaning towards yes, being an auto transformer the windings aren't electrically separate but I'm not 100% sure on this one.
Cheers ?
My question is, is the star point common for both the line and load side neutral connections? I'm leaning towards yes, being an auto transformer the windings aren't electrically separate but I'm not 100% sure on this one.
Cheers ?

Last edited by a moderator: