Power System

Amplidyne – Working and Application

Amplidyne is a special-purpose DC generator. It supply large DC currents, precisely controlled, to the large DC motors used to ...
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Transformer Percentage Impedance Testing

How to Test Percentage Impedance of Transformer?

This article covers transformer impedance testing, one of the acceptances tests for new transformers, and a method for routine testing ...
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Electrical Substation: Equipment, Types, Components & Functions

An electrical substation is an installation with electrical equipment capable of interrupting or establishing electrical circuits and changing the voltage, ...
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Transformer Bushing Types : RIP Bushing vs OIP Bushing

Transformer bushing types are categorized based on their material, manufacturing, and design mainly into the following types: OIP (Oil-Impregnated Paper) ...
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Complete Guide on Ground Fault Circuit Interrupters

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

A ground fault circuit interrupter (GFCI or GFI) is an inexpensive electrical switchgear device that can either be installed in your ...
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Auto Reclosing of Power Lines and Types of Faults

The goal of the auto reclosing in power lines is to restore the line to service as quickly as possible ...
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Square D QO Circuit Breakers

QO stands for Qwik-Open. Square D QO Circuit Breakers are fastest tripping circuit breakers at 1/60th of a second. QO™ ...
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Bundled Conductors in Transmission Lines

The combination of more than one conductor per phase in parallel suitably spaced from each other used in an overhead ...
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Measurement of Three Phase Power | Wattmeter Methods

This article explains the measurement of three-phase power in star connected or delta connecter load using the wattmeter methods. The ...
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Types of Underground Cables

In practice, different types of underground cables are generally required to deliver 3-phase power. For the purpose, either three-core cable or ...
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Circuit Breaker Working Principle and Arcing Phenomenon

As the name indicates, the circuit breaker means the device which breaks (Open) the circuit under the abnormal condition and ...
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What is an HVDC (High Voltage Direct Current) Transmission System?

HVDC stands for High Voltage Direct Current. An HVDC electric power transmission system uses direct current for the bulk transmission of ...
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