Slip Ring Rotor

The motor which employing the wound rotor is known as a slip ring induction motor or phase wound motor.

Slip ring rotor.

Slip ring induction motor is one of the types of 3 phase induction motor and is a wound rotor motor type. Each slip ring is connected to one of the three phases of rotor windings. A slip ring is an electromechanical device that allows the transmission of power and electrical signals from a stationary to a rotating structure. The slip ring brushes made of graphite are connected to a resistive device such as a rheostat.

This external circuit helps in developing a high starting torque compared to a squirrel cage type. It consists laminated cylindrical core which has a semi closed slot at the outer periphery and carries three phase insulated winding. 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. In slip ring motors the rotor resistance is increased by adding external resistance so the slip is increased.

A wound rotor motor uses three slip rings typically made of copper or a copper alloy mounted to but insulated from the motor shaft. A slip ring can be used in any electromechanical system that requires rotation while transmitting power or signals. What is slip ring induction motor. Wound rotor motors can be started with low inrush current by inserting high resistance into the rotor circuit.

As a leading designer and manufacturer of slip rings our solutions are applicable even in demanding applications. Adjusting the resistance allows control of the speed torque characteristic of the motor. As the motor reaches its base speed full rated speed after the removal of external resistance and under. Definition of slip ring motor.

Because of various advantages like low initial current high starting torque and improved power factor it is used in applications that require high torque cranes and elevators. This rings attached with high resistance acts as an external circuit for the rotor. To overcome this problem the slip ring induction motor comes into the picture. Instead of bars in this motor three windings are used.

However the rotor construction of the slip ring motor is quite interesting. Since the rotor resistance is high the slip is more thus it s possible to achieve pull out torque even at low speeds. Moflon has been manufacturing and supplying slip rings and rotary unions to companies contractors and other end users for more than 30 years now. It is a type of motor where its external circuit is connected using some rings.