Slip Ring Rotor Of Induction Motor

This external circuit helps in developing a high starting torque compared to a squirrel cage type.

Slip ring rotor of induction motor.

A slip ring is an electromechanical device that allows the transmission of power and electrical signals from a stationary to a rotating structure. This rings attached with high resistance acts as an external circuit for the rotor. The stator circuit is rated as same in the squirrel cage motor but the rotor is rated in frame voltage or short circuit current. In a version of the ac induction motor referred to as a wound rotor motor slip rings are used not for transferring power but for inserting resistance into the rotor windings a wound rotor motor uses three slip rings typically made of copper or a copper alloy mounted to but insulated from the motor shaft.

If the slip motor is started with all the slip rings or the rotor terminals shorted like a normal induction motor then it suffers extremely high locked rotor current ranging up to 1400 accompanied with very low locked rotor torque as low as 60. The slip ring induction motor has two distinctly separate parts one is the stator and other is the rotor. It is most widely used for industrial applications due to its self starting attribute. The working principles and stator construction of the slip ring induction motor are exactly the same as that of the squirrel cage motor.

It can improve mechanical performance simplify system operation and eliminate damage prone wires dangling from movable joints. The motor which employing the wound rotor is known as a slip ring induction motor or phase wound motor. Slip ring induction motor is one of the types of 3 phase induction motor and is a wound rotor motor type. Adjusting the resistance allows control of the speed torque characteristic of the motor.

To overcome this problem the slip ring induction motor comes into the picture. A slip ring can be used in any electromechanical system that requires rotation while transmitting power or signals. However the rotor construction of the slip ring motor is. What is slip ring induction motor.

Characteristics of slip ring induction motor. It is a type of motor where its external circuit is connected using some rings. Production of high starting torque with slip ring induction motor. As the motor accelerates.

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. Wound rotor motors can be started with low inrush current by inserting high resistance into the rotor circuit. An induction motor is an electrical device that converts electrical energy into mechanical energy.