Home Electrical DC motor how it works | Working principle of DC motor

DC motor how it works | Working principle of DC motor


DC motor how it works video

DC motor how it works

We know that a motor is a device which transforms electrical energy into mechanical energy. In the case of DC motor, it’s one type of motor that uses the DC current to convert electrical energy to mechanical energy.
Actually, the motor principle based on the Faraday’s Law which states that it is the conversion of electrical and mechanical energy.

All the electro-mechanical developments we see around us are caused either by an A.C. or on the other hand a DC engine. Here we will investigate this sort of engines. This is a device that converts DC electrical to a mechanical energy.

Watch video about electrical transformer working principle

At the point when a current carrying conductor is put in a magnetic field, it encounters a torque and tends to move. It is known as motoring activity. If the direction of current in the wire is reversed, the direction of rotation also reverses.

At the point when the magnetic field and electric field connect they deliver a mechanical power, and in light of that the working rule of DC engine set up.

DC motor how it works
DC motor how it works

DC motor consist of following things:

  • Rotor
  • Stator
  • Air gap
  • Winding
  • Commutator

The DC motor can be catagorized as

  • Shunt Motor
  • Separately Excited Motor
  • Series Motor
  • Permanent Magnet motor
  • Compounded Magnet motor

Examples of DC motor are: Fans, household appliances, blowers and pumps and so on.

The advantage of the DC motor

  • Easy to control speed in a wide range
  • Traction and the servo motors use the DC motors
  • Comfortable to use, as its dimensions permit considerable space saving.

The disadvantage of the DC motor 

  • DC engine creates low weight condition; that is the reason it can’t be utilized for artificial hearts. On the off chance that we utilize this for artificial hearts, we need to transform it inside 60 minutes.
  • Relative to the AC engines, DC engines are costly.