Slip Ring Rotor Winding

A large number of rotor turns will increase the secondary voltages and reduce the current that flows through slip rings.

Slip ring rotor winding.

A motor with a wound type rotor is known as a slip ring induction motor. As it names wound rotor the rotor is wound with a 3 phase windings. This has to do with the windings on the rotor and the use of slip rings. Name one disadvantage of slip ring induction motor and squirrel cage induction motor.

A wound rotor motor also known as slip ring rotor motor is a type of induction motor where the rotor windings are connected through slip rings to external resistance. Adjusting the resistance allows control of the speed torque characteristic of the motor. These slip rings are insulated from the rotor shaft. For ease of understanding instead of the current 24 slots winding let s use a 12 slot winding.

Also rotor windings are connected through slip rings to external resistance. This construction of the rotor is aimed at reducing the phase difference. The disadvantages are high copper losses and the low torque. Let s see how the slip ring rotor does it.

Bar straps or wires are used for winding. Instead of bars in this motor three windings are used. What is a slip ring induction motor. As the motor accelerates.

As for the slip ring motor the rotor has the same winding as the stator. The slip ring brushes made of graphite are connected to a resistive device such as a rheostat. Rotor the rotor of a squirrel cage motor is a set of bars which are short circuited by end rings. Wound rotor motors can be started with low inrush current by inserting high resistance into the rotor circuit.

Construction the construction of the slip ring motor is more complicated than the squirrel cage. Each slip ring is connected to one of the three phases of rotor windings.