Applications of Induction Motor In Daily Life-squirrel cage, wound rotor
There is a wide range of applications of induction motor in Industry as well as in daily life. because of its simple design, rugged construction, and reliable operation. induction motors have easy operation and simple maintenance, low initial cost, high efficiency, and availability of different starters. For starting loads such as small refrigerating machines operating at full pressure or conveyor belts motor with high starting torque induction motors are used. Almost 90% of motors in the industry are induction motors
1) Squirrel Cage Rotor application
2) Slip Ring or Wound Rotor
The squirrel cage electric motor with low rotor resistance (FL Slip 3 to 5%) are mostly used for fans, centrifugal pumps, etc. and the other motors with high rotor resistance are used for compressor and crushers. Cage motor with higher rotor resistance used for loads like punching machines, hoists, and elevators. These are applications of squirrel cage induction motor.
Slip Ring Type or Wound Rotor
Slip ring induction motor mostly used in the application of hoists, cranes, elevators, and compressors. By the use of a wound rotor or squirrel cage rotor with a suitable controller and external resistances connected in series with the rotor, it is possible to obtain any value of starting torque.