Difference between Electronic Commutator and Mechanical Commutator:

The difference between Electronic Commutator and Mechanical Commutator is given in table below

Sl no Electronic Commutator Mechanical Commutator
1 Power electronic switching devices are used in the electronic commutator. The commutator is made up of commutator segments and mica insulation with carbon or graphite brushes.
2 Commutator arrangement is located in the stator. Commutator arrangement is located in the rotor.
3 Number of switching devices is limited to 6. The number of commutator segments are very high.
4 No sparking. Sparking takes places.
5 Voltage can be controlled by PWM techniques. Difficulty to control the voltage avaibale across tappings.

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