Electric Motor

A motor is a device that converts electrical energy into mechanical energy. It uses the energized coil (that is, the stator winding) to generate a rotating magnetic field and acts on the rotor (such as a squirrel-cage closed aluminium frame) to form a magneto-electric rotational torque.

Electric machinery, commonly known as “motor” refers to an electromagnetic device that realizes the conversion or transmission of electrical energy according to the law of electromagnetic induction.

The motor is represented by the letter M (the old standard is D) in the circuit. Its main function is to generate driving torque. As a power source for electrical appliances or various machinery, the generator is represented by the letter G in the circuit. The function is to convert mechanical energy into electrical energy.