Electrical Machines

3 Methods of Magnetizing a Steel Bar

In this article, you will learn three principle methods...

Gramme Ring and Drum Wound Armature in DC Motors

A DC motor can be made using different types...

Three-Phase Transformer – Basics and Connection Methods

Three-phase transformers are used in three-phase circuits to step...

Open Delta (V-V) Connection of Transformers

Open Delta Connection is a method of transformer connection...

[PDF] Electromagnetism Lecture Notes – University of Cambridge

The electromagnetism lecture notes is a book to provide...

Electrical Engineering Basics: The Ultimate Guide

This is the complete guide to learn electrical engineering...

Amplidyne – Working and Application

An amplidyne is an electromechanical amplifier with the characteristics...

How to Test Percentage Impedance of Transformer?

This article covers transformer impedance testing, one of the...

Electrical Machines Articles

Working Principle of Transformer

Working Principle of DC Motor

Working Principle of Alternator

Working of Light Emitting Diode (LED)

Working of Air Circuit Breakers

Why we need Power System Protection?

Why Voltage Control is Important?

Why Transformers are Rated in kVA, Not in kW?

Why Transformer does not work on DC supply?

Why Three Phase System Preferred Over Higher Phases?

Why Neutral Grounding or Neutral Earthing is Essential?

Why Motor Fails? Most Common Causes

Why Electric Motors are Rated in kW and not in kVA?

Why Current Transformer (CT) Seconday Should not be Open ?

Why Birds don’t get Electrocuted on Touching Power Lines?

What Jobs Electrical Engineers Do? | Roles and Responsibilities

What is Switching Station? | Working and Layout

What is Switchgear? | Features, Components and Classification

What is Power Factor, Its Causes and How to Improve it?

What is Ladder Diagram and How to Draw a Ladder Diagram?

What is Connected Load?

What is an HVDC (High Voltage Direct Current) Transmission System?

What is an Electrical Fuse? Types, Properties, and Application

What is a Voltage Source? | DC and AC Voltage Sources Explained

What is a FUSE and How it Works?

What do Electrical Engineers Do?

What are Protective Relays? | Types and Working

What are Motor Control Centres?

What Are Military Materials?

What Are Current, Resistance and Voltage?

Voltage Surge in Power System

Voltage and Power Equations of DC Motor | Condition of Maximum Power

Video: How Stepper Motor Works?

Video: How Single Phase and Three Phase Transformer Works?

Video Tutorial: Electrical Impedance – A Practical View

Video : How Does a Tesla Electric Car Work?

Video – How Single Phase Induction Motor Works?

Vacuum Circuit Breaker (VCB) – Principle, Construction and Working

Understanding Power Factor Using a Horse and a Railcar

Types of Underground Cables

Types of Stepper Motor

Types of ROM | PROM, EPROM, EEPROM, Flash EPROM & Mask ROM

Types of Power Plants

Types of Gas Turbine Engines

Types of Emergency Lighting Systems

Types of Electrical Relays

Types of Electric Utilities in United States

Types of Electric Current – Steady (DC), Varying & Alternating (AC) Current

Types of DC Generator – Series, Shunt and Compound

Type B Miniature Circuit Breaker ( Type B MCB)

Transformer Oil Testing : Video Training

Transformer Oil Filtration and Hot Oil Circulation Process

Transformer Oil – Tests and Purification Methods

Transformer Bushing Types : RIP Bushing vs OIP Bushing

Tips on Accomplishing Your Assignments with Ease

Three-Phase Transformer – Basics and Connection Methods

Three Types of Analog Instruments

Three Phase Transformer Interconnections

Three Phase Induction Motors – Construction

Three Phase Induction Motor: Construction and Working Principle

Things You Should Know About Electromagnetic Flow Meters

The Basics of Programmable Logic Controller (PLC) that You Never Learned

The Advancements in XLPE cables

Testing of DC Machines (DC Motor and DC Generator)

Teach Yourself Electricity and Electronics

Systems of Wiring – Introduction to Electrical Wiring

Swinburne’s Test of DC Machine (Generator and Motor)

Substation Earthing System Design

Substation Earthing System ( Grounding System ) – Earthing Mat

Substation Design Criteria and Studies

Substation Bus Configuration / Scheme: The Definitive Guide

Stroboscopic Effect in Fluorescent Lamps

Steam Power Stations – Arrangement and Working

Starting Methods for Synchronous Motor

Star-Star (Y-Y) Connection of Three Phase Transformers

Square D QO Circuit Breakers

Split Phase Induction Motor – Operation and Characteristics

Split Phase and Capacitor Start Induction Motors

Speed Control of DC Shunt Motors

Speed Control Of DC Series Motors

Speed Control of DC Motor (Shunt, Series and Compound)

Solid State Relays (Static Relays)

Skin Effect in Wires, Cables and Transmission Lines

Sinusoids and Phasors: Complete Guide

Single Phase Induction Motor – Working Principle and Construction

Short Circuit – Causes and Effects

Shaded Pole Induction Motors – Working and Construction

Shackle insulator (Spool Insulator)

SF6 Circuit Breakers – Construction, Types and Working

Series and Parallel Circuits – A Water Analogy

Self Testing in Embedded Systems

Section-wise Preparation Tips for JEE Mains Paper-1 Exam

Sag in Overhead Transmission Lines

Roles of a Commercial Electrician

Residual Current Protective Devices (RCCB, ELCB & RCBO)

Rectifier Transformer – Working Principle and Application

Protective Zones in Power Systems

Properties of Good Transformer Oil

Production of Rotating Magnetic Field

Primary and Back-up Protection in Power System

Practical Transformer on No Load

Power Transformer Testing Methods – Type, Routine & Special Tests

Power Transformer and Distribution Transformer

Potential Difference and EMF: Are they Same?

Permanent Magnet Moving Coil (PMMC) Instrument

Percentage Impedance of Transformer and Its Calculation

Parallel Operation of Single Phase Transformers

Parallel Operation of DC Series Generator

Overcurrent Relays for Transmission Line Protection

Open Loop and Closed Loop Control System (4 Practical Examples Included)

Open Delta (V-V) Connection of Transformers

Oil Circuit Breakers – Types, Working and Construction

Ohms Law – Simon Ohms Amazing Experiment and Results

Objective Questions on Single Phase Motors | Part 4

Objective Questions on Single Phase Motors | Part 3

Objective Questions on Single Phase Motors | Part 2

Objective Questions on Single Phase Motors | Part 1

Objective Questions on Electric Traction – 1

Objective Questions on Alternators | Part 4

Objective Questions on Alternators | Part 3

Objective Questions on Alternators | Part 2

Objective Questions on Alternator | Part 1

Neutral Grounding (Earthing) and Equipment Grounding

Need of a Starter (3 & 4 Point) in DC Motors

Multiple Choice Questions (MCQs) on Synchronous Motors

Moving Iron Instruments – Attraction and Repulsion Type

Moulded Case Circuit Breaker (MCCB) – Types and Working

Miniature cells and Batteries – Silver Oxide, Mercury and Lithium Cells

Methods of Arc Extinction in Circuit Breaker

Measurement of Three Phase Power | Wattmeter Methods

MCB (Miniature Circuit Breakers) – Types, Working and Trip Curves

Low Voltage Switchgear

Low Voltage Circuit Breakers – Design and Construction Basics

Losses in DC Machine ( DC Generator and Motor )

Load Forecasting – Purpose, Classification and Procedure

Load Curve in a Power Plant – Daily, Monthly and Annual

Lightning Arrester – Location, Rating and Selection

Introduction to Programmable Logic Controllers (PLCs)

Introduction to PLC Ladder Programming

Introduction to PCB Assembly Process

Introduction to Gas Turbine Power Plant

Introduction to Gas Insulated Substations / Switchgears (GIS)

Insulators, Conductors and Semiconductors (with Band Diagram)

Insulation Resistance Test (IR Test) or Megger Test

Insulating Materials for Power Cables

Instantaneous, Inverse Time and Definite Time Lag Relays

Inductors and Inductance : Working, Unit, Function, Types and Uses

IEC 61850 – Substation Automation – Fundamentals

IEC 61850 – Features and Advantages

Ideal Transformer and Practical Transformer

How to Test Percentage Impedance of Transformer?

How to Structure an Arduino Program?

How to Rescue a Person from Electric Shock?

How to Make a Wise Choice of Electronics for the Household?

How to Make a Digital Lock Using Arduino?

How to Make a DC Motor at Home?

How to Change the Direction of Rotation of a DC Motor?

How Star Delta Starter Works?

How RCCB/ELCB Protects You from Death?

How Multicolor RGB (Red Green Yellow) LEDs Work?

How Fluorescent Lamp Lights Work

How Electric Locomotives (Electric Trains) Work?

How Diesel Locomotives (Diesel Trains) Work?

How Charge is Stored in a Dielectric?

Gramme Ring and Drum Wound Armature in DC Motors

GFCI (Ground Fault Circuit Interrupter) – Working, Types, Installing and Troubleshooting

Fundamentals of Electric Circuits

Functional Characteristics of Protective Relaying

Function of Protective Relays in Power System

Evolution of Electric Power Systems

Electronic Structure of Atom

Electrolytic Capacitor – Types, Construction, Polarity and Leakage Current

Electrodynamometer Instruments – Ammeter, Voltmeter and Wattmeter

Electrician Careers: 8 Specializations To Consider

Electrical Substation: Equipment, Types, Components & Functions

Electrical Engineering Basics: The Ultimate Guide

Electrical Bushings – Types, Purpose and Construction with Diagrams

Electrical and Mechanical Noise in Motors

Electric Safety: 5 Rules You Need to Know

Electric Motor Maintenance : Preventive, Predictive and Reactive Maintenance

Effects of Voltage and Frequency Variation on Transformers

Effects of Variable Load on Power Station

Effect of Electric Current on Human Body at 50 Hz

Different Types of Rechargeable Batteries

Different Types of Circuit Breakers

Different Types of Capacitors and their Uses

Difference between Dielectric Testing & Insulation Resistance Measurement

Difference b/w Microprocessor and Microcontroller

Design a Power Supply Circuit – Simple to Complex

DC Generator Characteristics

Damping Systems – Air friction, Fluid Friction & Eddy Current Damping

Current Transformers – Windings and Rated Insulation Levels

Current Transformer (CT) – Construction and Working Principle

Corona Effect in Power System

Core Type and Shell Type Transformers

Controlling a Servo Motor with Arduino

Construction of Universal Motors

Construction of Underground Cables

Construction of DC Machine (Generator & Motor)

Constant Current Driver Design based on LM317

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