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Induction Machines
Introduction to Transformers
DC Generators
DC Motors in Electrical Machines
Synchronous Machine in Electrical Machines
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All videos of Electrical Machines for Electrical Engineering (EE) Exam

Induction Machines

Introduction of Induction Machines

Difference Between Transformer and Induction Machines

Differences Between Synchronous and Asynchronous Machines

Mutual Induction

Rotating Magnetic Field

Constructions of Induction Machine

Types of Rotors

Difference Between Slip Ring and Squirrel Cage

Operation of Induction Motor

Speed Equations

Rotor Equivalent Circuit

Power Equations

Problem on Slip

Problem No.1 on Rotor Speed

Problem on Power Equation

Problems on Torque Equation

Torque-Slip-Speed Characteristics

Effect of Rotor Resistance on Torque Slip Speed Characteristics

Effect of Supply Frequency on Torque Slip Speed Characteristics

Effect of Supply Voltage on Torque Slip Speed Characteristics

Effect of Poles on Torque Slip Speed Characteristics

Effect of Harmonics on Speed

Speed Control of Induction Motor by Injecting Emf into Rotor

Speed Control of Induction Motor by Cascading Method

Double Cage Rotor or Deep Bar Rotor

Star - Delta Starter

Circle Diagram

Single Phase Induction Machines

Resistance Split Phase Induction Motor

Capacitor Split Phase Induction Motor

Special Machines

Permanent Magnet DC Motor

Single Phase AC Series Motor

Schrage Motor

Shaded Pole Induction Motor

Stepper Motor

Torque Equations

Problem No.2 on Rotor Speed

Problem No.3 on Rotor Speed

Starters - Induction Machines

Previous GATE problem - problem - 1

Previous GATE problem - problem - 2

Previous GATE problem - problem - 3

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Introduction to Transformers

Introduction - Transformers

Features of Transformer

Type of Magnetic Couplings

Humming and Stacking Factor

Transformer No Load

Effect of Leakage Flux

Losses

KVA/Rating

Test of Transformer

Short Circuit Test

Sumpers Test

Difference Between Power Transformer and Distribution Transformer

3-Phase Transformer

Introduction to 3 Phase Transformer

Difference B/w Delta-Delta and Star-Star

Line Turns Ratios

Voltage and Current Rations

Star Zig-Zag Star Connection

T-T Connection

Switch Question on 3 Phase Transformer

Previous Year GATE Problems - Part 1

Previous Year GATE Problems - Part 4

Previous Year GATE Problems - Part 5

Previous Year GATE Problems - Part 6

Previous Year GATE Problems - Part 7

Basic Principle Transformer

Constructions of Transformer Core

Difference Between Core Type and Shell Type

Ideal Shape of Transformer Core

EMF Equation

Transformer on Load

Equivalent Circuit of Transformer

Open Circuit Test

Voltage Regulations

Efficiency Calculation

Parallel Operation

Auto Transformer

Auto Transformer Problems

Harmonics and Non Linearity

Switching Transients

3 Phase Difference Between Core and Shell Type

Delta-Delta Connection

Star Star Connection

Delta-Star Connection

Star-Delta Connection

Delta Zig-Zag Star Connection

Open Delta Connection

Scott Connection

Problem on MMF Balancing

Problem on 3 Phase Transformer

Parallel Operation of 3 Phase Transformer

Synchronous Machine in Electrical Machines

Uniformly Distributed Winding

Characteristics of Alternator

Two Reaction Theory

Salient Pole Alternator Power Equation

Power Equation of Cylindrical Synchronous Machine

Parallel Operation

Reluctance Machine

Introduction to Parallel Operation

Parallel Operation of Two Alternators at Load

Introduction to Synchronous Motor

Previous Year GATE Problems - Part 1

Previous Year GATE Problems - Part 2

Previous Year GATE Problems - Part 3

Previous Year GATE Problems - Part 4

Previous Year GATE Problems - Part 5

Previous Year GATE Problems - Part 6

Previous Year GATE Problems - Part 7

Introduction to AC Machines

Basic Principle

Simple Loop Analysis

Construction of Synchronous Machine

Types of Rotors

Types of Windings

Full Pitch and Short Pitch Windings

Concentrated and Distributed Windings

Remaining Windings

EMF and KVA Relations for Different Phases

Voltage Drops in Synchronous Machine

Vector Diagram

Armature Reaction

Voltage Regulation

Short Circuit Ratio

EMF or Zs Method

MMF or Amp-turns Method

Saturated Zs Method

ZPF Method

Slip Test

Salient Pole Alternator Power Equation

Vector Diagram of Salient Pole Alternator

Parallel Operation

Hunting - Synchronous Machine in Electrical Machines

Simple Loop and Basic Principle

Operation of Synchronous Motor

Starting Methods

Armature Reaction of Synchronous Motor

Power Equation of Cylindrical Motor

Synchronous Motor at No-Load and Loaded

Synchronous Condenser

Problem on Synchronous Condenser

Definitions - Synchronous Machine in Electrical Machines

Vector Diagram of Salient Pole Synchronous Motor

Parallel Operation with Busbar at No-Load

At-Load Effect of Excitation

At-Load Effect of Primover

Problem on Parallel Operation

Electrical Machines

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Video lectures for Electrical Machines 2023 is part of Electrical Engineering (EE) exam preparation. The videos have been prepared according to the Electrical Engineering (EE) exam syllabus. The Video lectures, notes, tests & MCQs are made for Electrical Engineering (EE) 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.

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