Can someone please explain to me why it is important to leave the primary wye neutral connection of a wye-delta transformer floating rather than grounding it. I believe this has something to do with letting the primary voltage float or shift for unbalanced loads on the delta secondary? Can someone please explain how this works or give an example?
Can someone also please explain how this connection helps voltages shift for a L-G fault on the the delta secondary?
Any good references for this?
Can someone also please explain how this connection helps voltages shift for a L-G fault on the the delta secondary?
Any good references for this?