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Good commutation means

Good commutation means Correct Answer No sparking at the brushes

Commutation:

  • Commutation is the process in which generated alternating current in the armature winding of a D.C machine is converted into direct current.
  • Good commutation means no sparking at the brushes.
  • For good commutation, the coil short circuited by the brushes should have zero emf induced in them
  • In under commutation, the commutation does not complete before the brush has moved from one commutator segment to the next. This leads to sparking at the trailing edge of the brush.

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