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In this lesson, important constructional features of a D.C machine are presented along with a discussion on D.C armature winding. Key Words: Field winding, armature winding, commutator segments & brush arrangement. After going through this section students will have clear ideas about the followings:
• The function of commutator & brush in a D.C Machine.
• Double layer winding.
• Coil span & commutator pitch.
• Lap & wave winding and number of armature parallel paths.
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