Electrical Machines

Electrical Substation: Equipment, Types, Components & Functions

An electrical substation is an integral part of a...

Working Principle of DC Motor

A DC motor is an electrical machine that converts electrical...

Current Transformer (CT) – Construction and Working Principle

A current transformer (CT) is a type of transformer...

6 DC Generator Problems with Solution – Types of DC Generator

This set of DC Generator Problems with Solution focuses...

Percentage Impedance of Transformer and Its Calculation

The percentage impedance of a transformer is marked on most nameplates...

Types of DC Generator – Series, Shunt and Compound

A DC generator requires MMF to establish flux in...

Three Phase Induction Motor: Construction and Working Principle

The three-phase induction motors are the most widely used...

Back EMF and Its Significance in DC Motor

What is Back EMF? When the armature of a...

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Transformers are passive electrical devices that transfer electrical energy from one circuit to another via electromagnetic induction. It is most commonly used to increase (‘step up’) or decrease (‘step down’) voltage levels between circuits.

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