Electrical Engineering Guides

Power Systems

What is a Transmission Lines?

What is a Transmission Lines? Transmission Line Definition A transmission line is a designed conductor that carries large volumes of electrical power across large distances at high voltages. Line Types and Lengths Transmission lines are categorized by length; short lines are under 80 km, medium line

By Encyclopedia 08/30, 2024
Circuit diagram

Equivalent circuit of a transmission line

Equivalent circuit of a transmission line

By Master Electrician 08/30, 2024
Power Systems

Equipment Earthing: What It Is & Why It’s Important

What is Earthing? Equipment earthing is a connection done through a metal link between the body of any electrical appliance, or neutral point, as the case may be, to the deeper ground soil. The metal link is normally of MS flat, CI flat, and GI wire which should be penetrated into the ground earth g

By Electrical4u 03/25, 2024
Power Systems

Earthing of Substation Equipment

The points we must earth in an electrical substation include: The neutral point of different voltage levels The metallic enclosure of all current carrying equipment The framework of all current carrying equipment All the metallic structure even not associated with current carrying equipment Method o

By Electrical4u 03/25, 2024
Power Systems

Earthing of Electrical Transmission Tower

We should probably earth each tower of an electrical transmission line . We must measure footing resistance of each tower. We should take the footing resistance of tower in dry season before stringing the earth wire and/or OPGW (where OPGW is applicable). In any circumstances footing resistance of t

By Electrical4u 03/25, 2024
Power Systems

Earth Resistance: Definition, Factors, and Measurement Methods

Earth resistance is defined as the resistance offered by the earth electrode to the flow of current into the ground. It is also known as resistance to earth or ground resistance. Earth resistance is an important parameter for designing and maintaining earthing systems, as it affects the safety and p

By Electrical4u 03/25, 2024
Power Systems

A Comprehensive Guide to Earthing Systems

An earthing system, also known as a grounding system, connects specific parts of an electric power system with the ground, typically the Earth’s conductive surface, for safety and functional purposes. The choice of earthing system can affect the safety and electromagnetic compatibility of the instal

By Electrical4u 03/25, 2024
Power Systems

Shunt Reactor Function, Calculation, and Compensation

What is Shunt Reactor A shunt reactor is a piece of electrical equipment used in high voltage power transmission systems to stabilize the voltage during load variations. A traditional shunt reactor has a fixed rating and is either connected to the transmission line all the time or switched in and ou

By Electrical4u 03/25, 2024
Power Systems

Phase Synchronizing Device or Controlled Switching Device

When we switch off an online circuit breaker to cut an inductive load, it is ideally desired to interrupt the current of the system during its zero crossing of the current waveform. But practically it is somewhat impossible to maintain the condition. In normal circuit breaker the current interruptio

By Electrical4u 03/25, 2024
Power Systems

Arc Suppression Coil or Petersen Coil

There is always a significant charging current flowing from conductor to earth in underground high voltage and medium voltage power network. This is because of dielectric insulation between earth and conductor in the underground cables. During an earth fault in any phase, in a 3 phase such system, t

By Electrical4u 03/25, 2024
Power Systems

Measurement of Reactance of a Shunt Reactor

The following two factors to be considered during measurement of reactance of a shunt reactor. The reactance of a shunt reactor is approximately equal to its impedance as the resistive component of the impedance in shunt reactor is negligible. The V-I characteristics of the shunt reactor is almost l

By Electrical4u 03/25, 2024
Power Systems

Construction of a Shunt Reactor

Shunt Reactor is used to compensate capacitive reactive power of a long transmission line . The constructional features of a shunt reactor may vary manufacturer to manufacturer but basic of construction is more or less same. Core of Shunt Reactor Gapped Core is generally used in shunt reactor. The c

By Electrical4u 03/25, 2024

Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

All

What is a Transmission Lines?

Equivalent circuit of a transmission line

Equipment Earthing: What It Is & Why It’s Important

Earthing of Substation Equipment

Earthing of Electrical Transmission Tower

Earth Resistance: Definition, Factors, and Measurement Methods

A Comprehensive Guide to Earthing Systems

Shunt Reactor Function, Calculation, and Compensation

Phase Synchronizing Device or Controlled Switching Device

Arc Suppression Coil or Petersen Coil

Measurement of Reactance of a Shunt Reactor

Construction of a Shunt Reactor

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