Also known as AC, AC electric motors are industrial, and can be classified as synchronous and asynchronous three-phase and single-phase. The asynchronous type motor deals with a slip, according to the load intensity, however, most of the industries work with this type of device.
In the case of synchronous motors, they are generally more used in thermoelectric and hydroelectric plants. This synchronous term is due to the fact that the machine acts with speed of rotation in constant synchrony with the frequency of the electric tension that oscillates. AC motors also receive other types of classification, such as double-pole motors, because they can rotate at two different speeds in relation to their power, and double-spindle motor, which has only one output for each side.
DC motors, also called DC motors, perform their functions, basically with the aid of direct current. The components in it consist of a commutator ring, stator, brushes and rotor. The rotor has one or more bearings, which when energized produce a magnetic field. The magnetic poles inserted into the rotor field are attracted to the opposing poles, generated by the stator.