The commutator is a split ring made up of Copper segments, Commutator is another DC motor part. The operating system of a DCs is based on the interaction of the two magnetic fields of rotating armature and a fixed stator. As the north pole of the armature is attracted to the south pole of the stator and south pole of armature is attracted to the north pole of the stator, a force is produced on the armature which makes it to turn. the process in which the field in the armature windings is switched to produce constant torque in one direction is called Commutation. the commutator is a device connected to the armature enabling this switching of current. Different segments of its cylindrical structure are insulated from each other by Mica. The commutator is designed to commute the supply current to the armature winding from the mains. The commutator passes through the brushes of the DC motor.
The basic purpose of commutation is to certify that the torque acting on the armature is always in the same direction. Naturally, the generated voltage in the armature is alternating, the commutator converts it to the direct current. To control the direction the electromagnetic fields are pointing to, the commutator turns the coils on and off. On one side of the coil, the electricity should always flow away, and on the other side, electricity should always flow towards. This ensures that the torque is always produced in the same direction.
