Slot Wedge

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8 In DC machines, slot wedges are generally made of · cotton · fibre · impregnated paper · silicon steel  Equally spaced slots are stamped around the circumference for the purpose of holding the armature conductors Their shape influences the winding method used for

ure 008 The Core of DC machine is made of ferromagnetic material So, the residual magnetism exists after magnetization In ferromagnetic materials, the The Gramme-ring armature is constructed by winding an insulated wire around a soft-iron ring Eight equally spaced connections are made to the winding Each