![]() ![]() Single-phase induction motors are used extensively for smaller loads, such as household appliances like fans. Three-phase squirrel-cage induction motors are widely used as industrial drives because they are self-starting, reliable and economical. An induction motor's rotor can be either wound type or squirrel-cage type. An induction motor can therefore be made without electrical connections to the rotor. ![]() Many such motors have a symmetric armature, and the frame may be reversed to place the electrical connection box (not shown) on the opposite side.Īn induction motor or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. Cutaway view through stator of TEFC induction motor, showing rotor with internal air circulation vanes. ![]()
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