DC Machine

DC Machine: A dc machine is a heteropolar structure with stationary poles and the rotating armature (Fig. 5.8). An alternating emf of the same wave shape as that of B-wave is induced in every coil. As the armature rotates, the emf s induced in the belt of coil-sides under a given pole is unidirectional and […]

AC Winding

AC Winding: Ac winding are generally of a 3-phase kind because of the inherent advantages of a 3-phase machine. The armature coils must be connected to yield balanced (equal in magnitude and successive phase difference of 2π/3 rad) 3-phase emfs. To begin with the slots around the armature periphery must be divided into phase-bands. Phase […]

Introduction to Armature Winding Machine

Introduction to Armature Winding Machine: We Know that field and Armature Winding Machine are the essential features of electric machines. The field windings are simple arrangements with concentrated coils (i.e coils in which all the turns have the same magnetic axis). Armature Winding Machine on the other hand comprise a set of coils (single or […]

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