As a general rule, construction of an induction motor consists essentially of two main parts :
a) a stator and b) a rotor
In rotor construction, there are two types of motors are coming..
Squirrel cage rotor motor
Phase wound or wound rotor motor
Let’s know something about the construction:
Squirrel cage rotor:
Almost 90% of induction motors are squirrel cage type because this type rotor has the simplest and most rugged construction. The rotor consists of a cylindrical laminated core with parallel slots for carrying the rotor conductors.
2. Phase wound or wound rotor:
This type rotor is provided 3 phase, double layer, distributed winding consist of the coil as used in alternators.