Electrical Engineering · Commutation in DC Machines
During the commutation process in a DC machine, the 'Reactance Voltage' responsible for sparking is produced due to:
- 1The self-inductance of the coil undergoing commutation✓
- 2The back EMF of the motor
- 3The friction between commutator and brush
- 4The resistance of the brush contact
Correct answer
The self-inductance of the coil undergoing commutation
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