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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GFCI (Ground Fault Circuit Interrupter) – Working, Types, Installing and Troubleshooting
What is GFCI or GFI? A ground fault circuit interrupter, called a GFCI or GFI, is an inexpensive electrical switchgear ...
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Auto Reclosing of Power Lines and Types of Faults
The auto reclosing of power lines has become a generally accepted practice. Reports from different parts of the world show ...
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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
Bundled conductors are commonly used to increase electrical capacity and reduce corona and radio noise at voltages above 200 kV ...
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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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What is Circuit Breaker – Working Principle and Arcing Phenomenon
What is a Circuit Breaker? As the name indicates, circuit breaker means the device which breaks (Open) the circuit under the ...
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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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4 Major Types of Electrical Substations
The assembly of the apparatus used to change some characteristic (e.g. voltage, a.c. to d.c., frequency, p.f etc.) of ...
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Classification or Types of Protective Relays
The IEEE defines protective relays as: “relays whose function is to detect defective lines or apparatus or other power system ...
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Voltage Surge in Power System
What is Voltage Surge or Transient Voltage? The sudden rise in voltage for a very short duration on power system ...
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Why Voltage Control is Important?
In a modern power system, electrical energy from the generating station is delivered to the ultimate consumers through a ...
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Why Current Transformer (CT) Seconday Should not be Open ?
Amazed why secondary of current transformer should not be open? If it is left open it may destroy the current ...
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