Discussion Starter · #1 ·
This looks like an auto transformer I think (never hooked one up before). It's going to be feeding a 3 phase 3D printer (no neutral). 3w 3phase 208v coming in, 3w 3phase 230v coming out. I was going to ground the #1 on the diagram but it feels like I'd be grounding the secondary and primary with this configuration. Anyone connected something like this up before?
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