A 3-phase 4 wire system is commonly used on A) Primary transmission B) Secondary transmission C) Primary distribution D) Secondary distribution Related MCQs: The ability of metals to be drawn into thin wire is known as? The magnitude of field flux in a 3-phase synchronous motor In a three-phase converter, the number of notches per cycle is After the starting winding of a single-phase induction motor is disconnected from the supply, it continues to run only on