What is DC Motor ?
Electrical motors are everywhere around us. Almost all the electro-mechanical movements we see around us are caused either by a AC or a DC motor. Here we will be exploring DC motors. This is a device that converts DC electrical energy to a mechanical energy.
Principle of DC Motor
This DC or direct current motor works on the principal, when a current carrying conductor is placed in a magnetic field, it experiences a torque and has a tendency to move.
This is known as motoring action. If the direction of current in the wire is reversed, the direction of rotation also reverses. When magnetic field and electric field interact they produce a mechanical force, and based on that the working principle of DC motor is established.
Types of DC Motors
Direct motors are named according to the connection o the field winding with the armature. There are 3 types:
- Shunt wound DC motor
- Series wound DC motor
- Compound wound DC motor