The working of AC car alternator is quite simple and less complex. It contains two windings such as a stator (stationary outside winding) and a rotor (rotating inner winding). The voltage regulator supplied voltage to the rotor winding which energizes and turns it into a magnet. Via a pulley, the rotor is rotated by the engine through a drive belt. By induction motor, we mean that the stator windings induce a current flow in the rotor conductors, like a transformer, unlike a brushed DC commutator motor. Construction. An induction motor is composed of a rotor, known as an armature, and a stator containing windings connected to a poly-phase energy source as shown in Figure below. The simple. terminal connections explanation of symbols : common: main winding of the stator: aux. winding of the stator: non-connection: earth terminal: common: large focus: small focus : central x-ray anode & cathode terminal : iec60526 type central of focal spot a-1.5mm≦a≦1.5mm-1.5mm≦b≦1.5mm b dimensional outline of e7254fx unit mm.