Basic Electronics and Electrical Engineering: Chapter 5: Induction Motors
Induction Motors: Introduction
In this chapter we discuss about three phase induction motors and single phase induction motor.
CHAPTER - 5
INDUCTION MOTORS
INTRODUCTION
An electric motor is a
machine which converts electrical energy into mechanical energy. Its action is
based on the Faraday's principle that when a current‒carrying conductor is
placed in a magnetic field, it experiences a mechanical force. In DC motors,
the electrical power is conducted directly to the rotating part of the machine
through carbon brushes and commutator segments. Therefore the DC motor
generally is called as "conduction motors". However, in AC motors the
rotating part does not receive electric power by conduction but by induction
[it receive the electric power from the stator]. That is why such motors are
known as "Induction motors". Infact, an induction motor can be
treated as a "rotating transformer" i.e., one in which primary
winding is stationary but stationary but the secondary is free to rotate.
Of all the AC motors,
the 3‒ϕ induction motor is the one which is extensively used for various kinds
of industrial drives. In this chapter we discuss about three phase induction
motors and single phase induction motor.
THREE PHASE INDUCTION MOTORS
Three‒phase induction
motor is the most popular type of AC motor. It is most widely used for
industrial drives since it is cheap, robust, efficient and reliable. They run
essentially at constant speed from no‒load to full‒load. It has good speed
regulation and high starting torque. It requires little maintenance. It has
reasonable overload capacity.
Basic Electronics and Electrical Engineering: Chapter 5: Induction Motors : Tag: Basic Engineering : - Induction Motors: Introduction
Basic Electronics and Electrical Engineering: Chapter 5: Induction Motors
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Basic Electronics and Electrical Engineering
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