Slip Ring Induction Motor Rotor

Induction motor rotor is of two types.

Slip ring induction motor rotor.

It is a type of motor where its external circuit is connected using some rings. Wound rotor motors can be started with low inrush current by inserting high resistance into the rotor circuit. This external circuit helps in developing a high starting torque compared to a squirrel cage type. The main difference in a slip ring induction motor is on the rotor construction and usage.

The motor which employing the wound rotor is known as a slip ring induction motor or phase wound motor. It consists laminated cylindrical core which has a semi closed slot at the outer periphery and carries three phase insulated winding. It is most widely used for industrial applications due to its self starting attribute. Slip ring induction motor is one of the types of 3 phase induction motor and is a wound rotor motor type.

This rings attached with high resistance acts as an external circuit for the rotor. Adjusting the resistance allows control of the speed torque characteristic of the motor. The rotor is wound for the same number of poles as that of the stator. 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.

As the motor accelerates. An induction motor is an electrical device that converts electrical energy into mechanical energy. The slip ring induction motor could be used for industrial wires where variable speed and high starting torque are prime requirements. In the induction motors used in lift and hoists you will see a type of rotor called a slip ring rotor whereas in most of the other applications you will see a simpler squirrel cage type of rotor.

Induction motors have been ruling the industrial world for many decades. Rotor as the name suggests it is a rotating part of an electrical machine in which current is induced by transformer action from rotating magnetic field. What is slip ring induction motor. Some changes in the stator may be encountered when a slip ring motor is used in a cascaded system as the supply for the slave motor is controlled by the supply from the rotor of the other slip ring motor with external resistance mounted on its rotor.