Wiring Diagrams For 3 Phase Transformer. Delta secondary transformer may be used on a 4 wire y volt supply. General electrical connection diagramsacme transformer wiring diagrams primary.
120240 2 2 12 anfc 4 2 2 bnfc x4 x1 h10 h2 h3 h1 x2 x3 h5 h6 h4 h7 h8 h9 connectconnect primary primary inter secondary volts lines to. Our building has a 208 3 phase ungrounded delta transformer powering it up. Delta star δ y connection the primary winding is connected in a delta connection.
Wye wye three phase transformer connection.
That being said there is a wide range of different motors and what you have on hand can be completely different. I understand that 415v 3 phase ac is 230v per phase two taking power and one is the return i understand that 110v 3 phase must be 66v. 3 rows the standard method for marking three phase transformer windings is to label the three. 240 x 480 secondary.