Induction Motor – Constitution

Induction motors fit into asynchronous AC motors. A large portion of the energy consumed by industries, around 80%, is used to convert electrical energy into mechanics through electric motors.

The induction motor consists of coils, rotor and static magnetic circuit best prices for enerpac tools

The coils are the set of windings inserted into longitudinal recesses in the magnetic circuit of the stator through which the alternating currents flow from an external source of energy. The rotor is formed by a ferromagnetic core, also laminated, where there is a winding or a set of parallel conductors. In them are induced currents caused by the alternating current of the coils of the stator. The rotor is supported in a cavity which transmits the mechanical energy produced to the load. The distance between the rotor and the stator (air gap) is greatly reduced, so as to soften the current at no load, it increases the losses but also increases the power factor at a vacuum.

 

The static magnetic circuit is composed of ferromagnetic plates laminated and isolated from each other, avoiding parasitic currents. Outside the magnetic circuit, which is an integral part of the stator, is the finned housing where ventilation is engaged. The housing features a strong cast iron, steel or injected aluminum construction, which is resistant to corrosion.

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