Difference Between Slip ring and Squirrel cage induction motor
Difference Between Slip ring and Squirrel cage induction motor Difference Between Squirrel cage and Slip ring inductio motor Slip ring or phase wound Induction motor 1.Construction is complicated due to presence of slip ring and brushes. 2.The rotor winding is similar to the stator winding. 3.We can easily add rotor resistance by using slip ring and brushes. 4.Due to presence of external resistance high starting torque can be obtained. 5.Slip ring and brushes are present. 6.Frequent maintenance is required due to presence of brushes. 7.The construction is complicated and the presence of brushes and slip ring makes the motor more costly. 8.This motor is rarely used,only 10% industry uses slip ring induction motor. 9.Rotor copper loss is high and so less efficiency. 10.Speed control by rotor resistance method is possible. 11.Slip ring induction motor.is used where high starting torque is required i.e. in hoists, cran...