how to wire a three phase transformer?

To wire a three-phase transformer, first identify the primary and secondary windings. Connect the primary windings to the three-phase power supply, ensuring correct phase alignment (A, B, C). For a delta connection, connect the ends of each winding together; for a wye connection, connect one end of each winding to a common neutral point. Finally, connect the secondary windings to the load, ensuring proper phase matching. Always follow local electrical codes and safety standards.