Types
of three phase induction motor rotor
Squirrel cage rotor :
Squirrel cage rotor :
•There
are two types of three phase induction motor rotor one is squirrel cage rotor
and second is wound rotor.
•About
80 to 90 percent of the rotor are squirrel cage rotor.
•It is
simply consists of copper bars and metal ring each slots consists of copper bar.
•These
copper bars and end ring are short circuited.
•Also
the bars are slightly skewed for starting purpose or to decrease locking.
Wound
rotor :
•Wound
rotor is the type of three phase induction motor rotor.
•About
10 percent induction motor are wound rotor motor.
•It
basically consists of laminated core and slipring and copper winding.
•The
slipring is connected to external resistance.
•Speed
control of three phase induction motor via rotor resistance control method is
possible with this rotor.
