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Introduction of DC Motor

Introduction of DC Motor: Introduction of DC Motor is constructed in many forms and for a variety of purposes, from the 3-mm stepper drawing a few μA at 1.5 V…

Construction and Working Principle of DC Motor

Construction and Working Principle of DC Motor: Construction and Working Principle of DC Motor is a heteropolar structure with stationary poles and the rotating armature (Fig. 5.8). DC Machine Basic…

Types of Armature Winding in Electric Machine

Types of Armature Winding in Electric Machine: We Know that field and Armature Winding Machine are the essential features of electric machines. The field windings are simple arrangements with concentrated…

DC Motor Losses and Efficiency

DC Motor Losses and Efficiency: The Losses and Efficiency of a transformer have been studied in earlier lesson. As in the case of transformers, it is more accurate to determine…

Torque Equation of Synchronous Motor

Torque Equation of Synchronous Motor: Figure 5.36 shows a Torque Equation of Synchronous Motor with a round rotor. The rotor is initially stationary with fixed north-south poles created by dc…

MMF of AC Distributed Winding

MMF of AC Distributed Winding: It has been seen earlier that the armature what-when-how.comof a practical machine has distributed winding wound for the same number of poles as the field…

Three Phase Synchronous Generator

Three Phase Synchronous Generator: Practical synchronous generators are always of the 3-phase kind because of the well-known advantages of a 3-phase system. If two coils were located at two different…

Synchronous Machine Working Principle

Synchronous Machine Working Principle: Figure 5.2 shows the simplified version of an ac Synchronous Machine Working Principle with a 2-pole field winding on the rotor and a single coil aa'…