Electrical Engineering Guides

Power Systems

Low Voltage Switchgear or LV Switchgear

Generally electrical switchgear rated upto 1KV is termed as low voltage switchgear . The term LV Switchgear includes low voltage circuit breakers , switches, off load electrical isolators , HRC fuses , earth leakage circuit breaker , miniature circuit breakers ( MCB ) and molded case circuit breaker

By Electrical4u 03/25, 2024
Power Systems

Electric Supply System: What Are They?

Previously there was very little demand for electrical energy. A single small electrical generating unit could meet the localized demand. Nowadays the demand for electrical energy is tremendously increasing along with the modernization of human lifestyles. To meet this increasing electrical load dem

By Electrical4u 03/25, 2024
Power Systems

Fault of Electric Cable

It can be of three (3) types of electric cable faults found. They are There may be a short circuit between two conductors, There may be earth fault, i.e., fault between conductor and ground, There may be open circuit caused due to disconnection of the conductor. There can be more than one of the fau

By Electrical4u 03/25, 2024
Power Systems

Electric Poles

For carrying of overhead line, wooden poles , concrete poles , steel poles and rail poles are used. Which poles are to be used, depending on the importance of load, location, and place, cost effect of such construction, including maintenance cost, and keeping its profit element in mind. In low volta

By Electrical4u 03/25, 2024
Power Systems

Load Factor: What is it? (And How To Calculate It)

What is Load Factor? In electrical engineering, the Load Factor is defined as a ratio of the average load divided by the maximum (or peak) load in a given time of period. In other words, the Load Factor is the ratio of total energy (kWh) used over a specific period of time to the total possible ener

By Electrical4u 03/25, 2024
Power Systems

Impedance Matching: Formula, Circuit & Applications

What is Impedance Matching? Impedance matching is defined as the process of designing the input impedance and output impedance of an electrical load to minimize the signal reflection or maximize the power transfer of the load. An electrical circuit consists of power sources like amplifier or generat

By Electrical4u 03/25, 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

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

All

Low Voltage Switchgear or LV Switchgear

Electric Supply System: What Are They?

Fault of Electric Cable

Electric Poles

Load Factor: What is it? (And How To Calculate It)

Impedance Matching: Formula, Circuit & Applications

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

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