Unit - 2 Optimal Design of DC Machine Unit-02Lecture-01

The number of slots depends on how many phases of power are provided to the coil windings A basic single-phase motor usually has four slots that contain two

The function of a Commutator is to invert DC input wave to an AC wave in the armature winding It is built up of a number of small wedge shaped segments of high

slot calabar Construction of machines The magnet frame or yoke is made from cast steel for small machines and from rolled-steel for the larger sizes In the latter

slot green 8 In DC machines, slot wedges are generally made of · cotton · fibre · impregnated paper · silicon steel