The electric motor is a device that transforms electrical energy into mechanical energy, so that it can drive the operation of a machine. This occurs due to the action of the magnetic fields that are generated by the coils, (those small cylinders with insulated conductive metallic wire). Electric motors are very common, they can be found in trains, industrial process machines and in electric clocks; Some of the general use have standardized proportions, which helps to improve the selection according to the power to be achieved for the device in which it will be included.
The sources that feed the electric motor can be alternating current (AC) or direct current (DC). When it comes to alternating current, power grids or power plants are the main drive of the motor; There are several types of this motor, called: asynchronous and synchronous motor. Unlike this, when direct current is responsible for sustaining the operation, batteries, rectifiers, solar panels and dynamos are the artifacts that collaborate in the process; These are classified into: series motor, compound motor, shunt motor and brushless electric motor. The universal motor, for its part, works with both types of current.
The electric motor has many advantages, among them is its size and reduced weight, the fact that it can be built for almost any type of machine and a fairly high power, its performance is most of the time at 75%, no it emits any type of polluting substance or gas and does not need external ventilation.
