Question { 7540 }

what is slip rings in an induction motor&what is it's work.

Answer

I.M are two types.slip-ring and Sq.cage type motors. in
cage motors windings are in the form of short circuited
conducter bars. which have high reactance, due to at the
time of staring they will draw more reactive power and
having less straing torque.
*** in slip ring induction motors we add extra resistance
to reduce drawing high current at the time of starting and
improves starting torque.
**** main use of Slip rings is improving starting torque.