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How DC Motor Works? (eBook)
Introductiion
Abstract
Copyrights
PREFACE
Contents
Chapter 1: Fundamentals Concept
Fundamental of Electrical Motors:
How electric current develops mechanical force & torque
How to supply electric current to the rotating coil
How to maintain the direction of current flowing through conductors
Construction of DC Motor
Important role of Faraday’s law and Lenz’s law in energy conversion (Back emf)
Chapter 2: Mathematical Representation
Introduction
How to get desired torque and speed from motor
Graphical Representation of Torque-Speed equation.
Chapter 3: Speed Control of DC Motor
Introduction
Effect of Supply Voltage
Effect of Adding Resistance to the Armature Winding
Effect of Adding Resistance to the Field Winding
Summary
Chapter 4: More About DC motor
Ch4 Introduction
Controversy Effect of Field Flux on Motor Torque Developed.
Equation of Force
Shape and Equation of Back emf
Average Value of Back Emf
Power Transfer
DC Series Motor
Shaft Torque:
Applications& Limitations:
Appendix:
Faraday’s Law:
Lenz’s Law:
Screw Rule:
Ohm’s Law:
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How to supply electric current to the rotating coil
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