What is function of commutator in dc motor or generator? All Questions › Category: Electrical Machines › What is function of commutator in dc motor or generator? 0 Vote Up Vote Down CS Electrical And Electronics Staff asked 4 years ago I need short information. 1 Answers 0 Vote Up Vote Down Chetan Kshirsagar answered 4 years ago For generator- Commutator works as a rectifierTo convert AC to DC…..For generation of armature current in dc..