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Machines

Armature Winding of Alternator

Armature winding in an alternator may be either closed type open type. Closed winding forms star connection in armature winding of alternator . There are some common properties of armature winding. First and most important property of an armature winding is, two sides of any coil should be under two

By Electrical4u 05/06, 2024
Machines

Working of Electric Motor

The electric motor is a device which converts electrical energy to mechanical energy. There are mainly three types of electric motor. DC Motor. Induction Motor. Synchronous Motor. All of these motors work in more or less same principle. Working of electric motor mainly depends upon the interaction o

By Electrical4u 05/06, 2024
Machines

Armature: Definition, Function And Parts (Electric Motor & Generator)

What is an Armature? An armature is the component of an electric machine (i.e., a motor or generator) that carries alternating current (AC). The armature conducts AC even on DC (Direct Current) machines via the commutator (which periodically reverses current direction) or due to electronic commutati

By Electrical4u 05/04, 2024
Machines

Transformer: What is it?

What is a Transformer? A transformer is defined as a passive electrical device that transfers electrical energy from one circuit to another through the process of electromagnetic induction . It is most commonly used to increase (‘step up’) or decrease (‘step down’) voltage levels between circuits. W

By Electrical4u 05/04, 2024
Machines

Electric Motor: What is it?

What is an Electric Motor? An electric motor (or electrical motor) is an electric machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor’s magnetic field and electric current in a wire winding. This interaction generates

By Electrical4u 05/04, 2024
Machines

Working Principle of Electric Generator

When a conductor moves in a magnetic field, an emf is induced across the conductor. This is the only basis on which each and every rotating electric generator works (such as portable generators). According to Faraday’s law of electromagnetic induction, when a conductor links with a changing flux, it

By Electrical4u 05/03, 2024
Machines

Electrical Slip Ring: What is it?

What is a Slip Ring? A slip ring is defined as an electromechanical device that is used to connect a stationary system to a rotating system. It is used in applications that require rotation while transmitting power or electrical signals. The slip ring also is known as an electrical rotary joint, rot

By Electrical4u 05/03, 2024
Machines

EMF Equation of Transformer

Emf Equation of Transformer EMF Equation of transformer can be established in a very easy way. Actually in electrical power transformer , one alternating electrical source is applied to the primary winding and due to this, magnetizing current flowing through the primary winding which produces altern

By Electrical4u 05/03, 2024
Machines

Rogowski Coil: What is it & How Does it Work?

What is a Rogowski Coil? The Rogowski coil is defined as an electrical device that is used to measure alternating current (AC). It is also used to measure the high-speed transient, pulsed current or sinusoidal current. The name Rogowski coil was named after the German physicist Walter Rogowski. A Ro

By Electrical4u 05/02, 2024
Machines

Eddy Current Theory and Applications

What is Eddy Current According to Lenz’s law, a conducting loop when subjected to varying magnetic field gets an emf induced into it causing flow of current in a direction opposing the change causing it. The case goes similar to when instead of a conducting closed loop, the change in magnetic field

By Electrical4u 05/02, 2024
Machines

Centrifugal Switches: What Are They And How Do They Work

What is a Centrifugal Switch? A centrifugal switch is an electrical switch powered by the centrifugal force created by a rotating shaft. This centrifugal force is typically provided by a gasoline engine or electric motor. Centrifugal switches are designed to activate or deactivate the rotational spe

By Electrical4u 04/30, 2024
Machines

Efficiency of Transformer

Introduction of Efficiency of Transformer Transformers form the most important link between supply systems and load. Transformer’s efficiency directly affects its performance and aging. The transformer’s efficiency, in general, is in the range of 95 – 99 %. For large power transformers with very low

By Electrical4u 04/30, 2024

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Armature Winding of Alternator

Working of Electric Motor

Armature: Definition, Function And Parts (Electric Motor & Generator)

Transformer: What is it?

Electric Motor: What is it?

Working Principle of Electric Generator

Electrical Slip Ring: What is it?

EMF Equation of Transformer

Rogowski Coil: What is it & How Does it Work?

Eddy Current Theory and Applications

Centrifugal Switches: What Are They And How Do They Work

Efficiency of Transformer

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