Electrical Engineering Guides

Power Systems

What is a Residual Current Circuit Breaker (RCCB)?

A residual current circuit breaker (RCCB) is an electrical safety device that detects and interrupts an electrical circuit when there is a leakage current to the ground. It protects people and equipment from electric shocks, fires, and other hazards caused by faulty wiring, insulation failure, or ac

By Electrical4u 03/25, 2024
Power Systems

High Voltage Switchgear

The power system deals with voltage above 36KV, is referred as high voltage switchgear . As the voltage level is high the arcing produced during switching operation is also very high. So, special care is to be taken during the designing of high voltage switchgear . High voltage circuit breaker , is

By Electrical4u 03/25, 2024
Power Systems

Medium Voltage Switchgear

From 3 KV to 36 KV switchgear system is categorized as medium voltage switchgear or MV switchgear . These switchgears are of many types. They may metal enclosed indoor type switchgear , metal enclosed outdoor type switchgear, outdoor type switchgear without metal enclosure, etc. The interruption med

By Electrical4u 03/25, 2024
Power Systems

Electrical Switchgear Protection

Definition of Switchgear A switchgear is a generic term which includes all the switching devices associated with power system protection . It also includes all devices associated with control, metering and regulating of electrical power systems . Assembly of such devices in a logical manner forms sw

By Electrical4u 03/25, 2024
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

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

All

What is a Residual Current Circuit Breaker (RCCB)?

High Voltage Switchgear

Medium Voltage Switchgear

Electrical Switchgear Protection

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

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