Electric apparatus for commutation is a device used in electrical engineering to convert alternating current (AC) to direct current (DC) by reversing the direction of current flow. The commutation process is essential in many electrical devices, including motors, generators, and rectifiers. The apparatus consists of a commutator, which is a rotating switch that allows the current to flow in one direction at a time, and a set of brushes that make contact with the commutator to transfer the current. The commutator is typically made of copper segments mounted on an insulating material. The brushes are made of carbon or graphite and are held in place by springs to ensure good contact with the commutator. As the commutator rotates, the brushes make contact with the segments, allowing the current to flow through the device. The commutator segments are arranged in such a way that the current is always flowing in the same direction, even though the input current is alternating. The electric apparatus for commutation is used in a wide range of applications, including electric motors, generators, and rectifiers. In electric motors, the commutator is used to reverse the direction of the current flow in the coils of the motor, which causes the motor to rotate. In generators, the commutator is used to convert the AC output of the generator into DC, which can be used to power electrical devices. In rectifiers, the commutator is used to convert AC power to DC power. In conclusion, the electric apparatus for commutation is an essential component in many electrical devices, allowing for the conversion of AC to DC current. The commutator and brushes work together to ensure that the current flows in the desired direction, making it possible to power a wide range of electrical devices.
Commutation, Commutator, Brushes, AC, DC
CITATION : "Michael Davis. 'Electric Apparatus For Commutation.' Design+Encyclopedia. https://design-encyclopedia.com/?E=324630 (Accessed on August 02, 2025)"
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