Electrical Engineering Guides

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
Power Systems

Electrical Reactor: What are They? (Line Reactors)

What is a Line Reactor? A line reactor (also referred to as an electrical reactor or a choke) is a variable frequency drive (VFD) accessory that consists of a coil of wire that forms a magnetic field as current flows through it. This magnetic field limits the rate of rising of the current, thus redu

By Electrical4u 03/25, 2024
Power Systems

How to Test a Shunt Reactor: A Comprehensive Guide

A shunt reactor is defined as a device that absorbs reactive power from a power system and helps regulate the voltage level. Shunt reactors are typically used in high-voltage transmission lines and substations to compensate for the capacitive effect of long cables and overhead lines. Shunt reactors

By Electrical4u 03/25, 2024
Power Systems

Switchable Capacitor Bank or Switched Capacitor Bank

It is not always economical to keep a capacitor bank in service throughout the day and night. This is because, a capacitor also provides reactive power to the system as inductor but in opposite direction. Actually capacitive reactive power provided by capacitor neutralizer the inductive reactive pow

By Electrical4u 03/23, 2024
Power Systems

Testing of Capacitor Bank

ANSI, IEEE, NEMA or IEC standard is used for testing a power capacitor bank . There are three types of test performed on capacitor banks . They are Design Tests or Type Tests. Production Test or Routine Tests. Field Tests or Pre commissioning Tests. Design Tests or Type Tests of Capacitor Bank When

By Electrical4u 03/23, 2024

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

All

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

Electrical Reactor: What are They? (Line Reactors)

How to Test a Shunt Reactor: A Comprehensive Guide

Switchable Capacitor Bank or Switched Capacitor Bank

Testing of Capacitor Bank

Recommended Topics