What are the Uses of slip rings in motors?

Answer 1

A slip ring motor contains a slip ring, which is a mechanical device that transmits power and electrical signals from a stationary to a rotating structure. They are commonly found in engines used in cable reels, wind turbines, packaging machinery and radio telescopes.

Answer 2

in a three phase induction motor the if the case is wound rotor then slip ring are used. The winding of rotor is 3phase winding one end is shorted to form the nutral point, it can be star or delta, however star is preffered. The other end is connected by the help of slip ring for completing the circuit.generaly rehosted are connected after slip ring to vary the current and control the speed of motor.

salil prasad

electric enng

Answer 3

In an induction motor, slip rings provide a means for connecting external resistance in the rotor circuit. Inserting external resistance increases the slip of the motor and reduces the operating speed at any given load torque. Slip rings are provided with wound rotor induction motors, not squirrel cage induction motors. There are control schemes in which energy is returned to the power source rather than dissipated as heat in external resistors. Other schemes have also been used. Applications formerly served by wound rotor induction motors are today usually served by squirrel cage induction motors and variable frequency drives.

Answer 4

to transfer power from the stator to the rotor. there are similar to the commutators but not segmented; they are continuous.

Answer 5

slip rings generally allow the induced current that is produced by the motion of the motor to flow though the external circuit, hence generating a continuous alternating current.

Answer 6

To electrically couple the rotor to a stationary power source.