Description : In a three phase transformer, if the primary side is connected in star and secondary side is connected in delta, the angle difference between phase voltage in the two cases will be: (A) delta side will lag by -30° ... will lag by -30° (C) delta side will lead by 30° (D) star side will lead by -30°
Last Answer : In a three phase transformer, if the primary side is connected in star and secondary side is connected in delta, the angle difference between phase voltage in the two cases will be: delta side will lead by 30°