Question

What Is The Difference Between Commutator And Slip Ring?

Answer 1

An electric motor is a mechanism that turns electricity into mechanical energy. The interaction between the motor's magnetic field and electric current in a wire winding generates force in the form of torque imparted to the motor's shaft in most electric motors.

Complete step-by-step solution:
In some types of electric motors and generators, a commutator is a rotating electrical switch that periodically flips the current direction between the rotor and the external circuit. A consistent rotational force (torque) is created by reversing the current direction in the revolving windings every half revolution. Commutators are used in direct current (DC) machinery such as dynamos (DC generators), DC motors, and universal motors.
A slip ring is an electromechanical device that permits power and electrical signals to be transmitted from a fixed structure to a spinning structure. Any electromechanical device that requires rotation while sending power or signals can benefit from the usage of a slip ring. It can increase mechanical performance, make system operation easier, and minimise cables dangling from moving joints that might cause harm.
Both the commutator and the slip ring are employed to keep the spinning and static systems' electrical circuits connected. There are, however, a few distinctions between the commutator and the slip ring. The key distinction is that a commutator is utilised to convert AC to DC. The other distinctions are:
The commutator and slip ring vary physically in that the slip ring is a continuous ring, whereas the commutator is segmented.
In AC motors, slip rings are employed to enable a continuous power transfer, but in DC motors, commutators are used to reverse the polarity of the current in the armature windings.

Note: A slip ring is typically made up of a stationary graphite or metal contact (brush) that scrapes against the exterior of a spinning metal ring. The electric current or signal is transmitted from the stationary brush to the metal ring forming the connection as the metal ring spins. If more than one electrical circuit is required, more ring/brush assemblies are stacked along the revolving axis. The brushes or the rings are either fixed or rotate while the other component rotates.