Principle of Electric Motor/All about Electric Motor[2022]

What is the principle of electric motor?

An electric motor is a device used to convert electricity into mechanical energy, as opposed to an electric generator. They use the principle of electromagnetism, which shows that force is used when an electric current is represent in a magnetic field. Principle of Electric motor. The car has many different working parts for continuous rotation, providing power as needed. Vehicles can run on Direct current (DC) or Alternating current (AC).

Principle of electric motor-

The principle of an electric motor is based on a conductor that carries a current that creates a magnetic field around it. The current carrier is kept in a magnetic field to experience this force.

Types of electric vehicles-

[1] DC motor work[Work on Principle of Electric motor]-

The working principles of DC motors are basically based on Fleming’s left hand principle. In the first DC motor, the hand was placed between two magnetic poles. If the motor coil is connected to an external DC source, the flow starts from the conductors of the motor. Because the conductors conduct current within a magnetic field, they are subjected to a force that causes the motor to rotate.

Assume that the armature conductor transmits a current down (junction) under the N poles of the field magnet and lifts the current under the S poles (points). By applying Fleming’s left-hand principle, it is possible to determine the direction of force F which is experienced by the conductor under the N poles and the force which is experienced by the conductor under the S poles. It turns out that the forces that the performers experience at all times. In such a way that they cause the arm to rotate

Once again, this rotation causes the conductors under the n electrode to fall under the s electrode and the conductors to the n electrode under the s electrode. As the conductors move from n-pole to s-pole and from s-pole to n-pole, the direction of flow through them is changed by the commuter.

 Principle of Electric motor
Due to this change of current, all the conductors move down from the N electrode and all the conductors move up and down under the S electrode as shown in the figure. Therefore, each conductor experiences electricity in the same direction under the N electrode and the same is true for conductors under the S electrode. This phenomenon contributes to the production of permanent and unilateral torque.

Performance of induction motors[ Principle of Electric motor]-

In the case of induction motors, the performance of electric motors is somewhat different from that of DC motors. In a single-phase induction motor, when the stator winding is supplied with a single-phase supply a magnetic field of plastering is produced and in a three-phase induction motor, when supplied to a three-phase stator. When lifted, a rotating magnetic field is created. The moving part of the induction motor is either wound type or squirrel cage type.

Depending on the type of rotor, a closed loop is created by shortening the conductors at the end. Due to the rotating magnetic field, the current passes through the air gap between the rotor and the stator, moving on the surface of the rotor and thus cutting the rotor conductors.

Therefore, according to Faraday’s law of electromagnetic induction, the stimulus current will circulate in the connected rotor conductors. The amount of current flow is proportional to the rate of change of the flow correlation over time. Principle of Electric motor.Once again, the rate of change in current flow is proportional to the relative speed between the rotor and the rotating magnetic field. In accordance with the law of the lens, the router will try to minimize any flow in it. So the rotor rotates and tries to gain the speed of the rotating magnetic field to reduce the relative motion between the rotor and the rotating magnetic field.

Schronous engine performance[ Principle of Electric motor]-

In a coordinate motor, when a three-phase equilibrium supply is provided to a three-phase stator wind, a rotating magnetic field is created that moves at a coordinated speed. Now, if an electromagnet is placed inside this rotating magnetic field, it is magnetically attached to the rotating magnetic field and rotates at the same coordinate speed with the forward rotating magnetic field.

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