Wound Rotor or slipring induction Motor
Â· Construction of such type of motor in which rotor winding is connected in star connection as we are making the normal three phase connection of a transformer. Fig show the motor Drum and shaft along withsliprings which are circular in shape and they will rotate in same speed as that of the rotor.
Â· Rotor Winding terminals are permanently connected to the sliprings
Â· The Brushes are continuously in contact with the sliprings
Â· Often we are an external resistance is required for the for rotor resistance and its connected externally however variable resistance to be connected in the rotor winding.
Â· The external which we had added that will produce the high starting Torque and it will be added with the help of brushes and sliprings.
Â· We can say, use can access the rotor with the help of sliprings and brushes.
Applications of Slipring Induction Motors: