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Electrical Electonics and Comunication Engineering EEE ECE

Electrical Machines I - EE6401

MAGNETIC CIRCUITS AND MAGNETIC MATERIALS


-> Magnetic Circuits and Magnetic Materials
-> Laws Governing Magnetic Circuits
-> Flux Linkage, Inductance and Energy
-> Statically and Dynamically Induced Emf
-> Properties of Magnetic Materials
-> Iron or Core losses
-> AC Operation of Magnetic Circuits
-> Transformer as a Magnetically Coupled Circuit
-> Solved problems - Magnetic Circuits and Magnetic Materials
-> Important Short Questions and Answers : Electrical machines - Magnetic Circuits and Magnetic Materials

TRANSFORMERS


-> Transformer: Principle of Operation
-> An ideal Transformer: Principle of Operation
-> Induction Law - Transformer
-> Equivalent Circuit of Transformer
-> Transformer Losses
-> Transformer Tests
-> Efficiency of a Transformer
-> Voltage Regulation of Transformer
-> Auto Transformer
-> Three-phase autotransformer connection
-> Parallel Operation of Transformers
-> Tap Changing in Transformer
-> Solved Problems - Transformer - Electrical machines
-> Important Short Questions and Answers: Electrical machines - Transformer

ELECTROMECHANICAL ENERGY CONVERSION AND CONCEPTS IN ROTATING MACHINES


-> Energy In Magnetic Systems
-> The Field Energy
-> The Co Energy
-> Force In A Singly Excited Magnetic Field System
-> Force in a Multiply Excited Magnetic Field System
-> Mmf of Distributed Windings
-> Magnetic Fields In Rotating Machines
-> Rotating Mmf Waves
-> Torque in Ac And Dc Machines
-> Solved Problems - Electromechanical Energy Conversion and Concepts in Rotating Machines
-> Important Short Questions and Answers - Electromechanical Energy Conversion and Concepts in Rotating Machines

DC GENERATORS


-> Construction of DC Machines
-> Lap Winding
-> Wave Winding
-> EMF Equation of DC Generators
-> Armature reaction
-> Methods of excitation of the field windings
-> Methods of Excitation used for DC Generator
-> Commutation and Interpoles
-> DC Generator Characteristics
-> Important short questions and answers: DC Generators

DC MOTORS


-> Principle of operation of a D.C. Motor
-> Working of D.C. Motor
-> Types of DC Motors
-> DC Motor Characteristics
-> Speed Control of DC Shunt Motor: Varying Armature Resistance, Field Resistance
-> Starting of DC Motors
-> Three Point Starter: Working principle
-> Four Point Starter
-> Swinburne’s Test
-> Hopkinson’s test: Procedure, Calculation of efficiency, Advantages, Disadvantages
-> Braking of DC shunt motor
-> Important Short questions and answers: DC Motor - Electrical machines

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