What is commutator in AC motor?
A commutator is a rotary electrical switch in certain types of electric motors and electrical generators that periodically reverses the current direction between the rotor and the external circuit. … In a motor the commutator applies electric current to the windings.
Does an AC motor need a commutator?
AC machines do not need a commutator. A commutator converts ac to dc and vice versa.
What is the function of a commutator?
The function of commutator ring in an electric motor is to reverse the direction of current flowing through the coil every time coil just passes the vertical position during a revolution. Hence as the direction of the current is reversed, the torque is changed in the direction.
How does an AC commutator work?
A specially designed series-commutator motor may be operated from a single-phase alternating voltage supply. When the supply current reverses, both the magnetic field and the armature current are reversed. Thus, the torque remains in the same direction.
What is the function of commutator Class 10?
Answer: The function of commutator or slip ring is to change the direction of current through the coil after every half rotation.
What is the other name of commutator?
commutator; reverser; current-reverser; switch.
Why commutator is not used in AC motor?
The main purpose of commutator is only to convert Ac to DC or vice versa, But in case of alternaters Commutator is not required because output will be AC only not DC. In case of DC generators Generation is AC so by using commutator will convert the AC to DC.
What will happen if commutator is not used in a DC motor?
Without a split ring commutator the current would not reverse when armature reverses, and the magnetic fields of the rotor and stator would clash and the rotor will stick in a position and not turn.
What is the function of the commutator in a dc motor Brainly?
Function of commutator: To keep the torque on a DC motor from reversing every time the coil moves through the plane perpendicular to the magnetic field, a split-ring device called a commutator is used to reverse the current at that point.
What is the function of commutator in DC motor Mcq?
Commutator is used to convert AC current into DC current.
Can commutator convert AC to DC?
Commutator converts the Alternating to direct current in a DC generator. The alternating current generated in the armature windings of the generator gets converted to direct current after it passes through the commutator and the brushes.