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Digital Electronics Articles
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Ring Main Unit (RMU) - Components, Functions, Types and Applications
Ring Main Unit (RMU) is a switchgear device used in secondary distribution systems, i.e., between the distribution substation and the end consumer to ensure continuous power supply and isolate the faulty section from the network. The main purpose of using a ring main unit is to provide an uninterrupted power supply to consumers even in fault conditions. It is basically a small sized switchgear unit enclosed completely within a cabinet and consists of disconnectors, fuses, and circuit breakers. Read this article to learn the structure, types, advantages, and applications of a ring main unit (RMU). What is a Ring ...
Read MoreWhat is a Capacitor Bank and why is it used?
In electrical substations, an interconnected system of multiple capacitors is used for improving the power factor of the system, this interconnected system of capacitors is referred to as a capacitor bank. In short, a capacitor bank is device which consists of multiple capacitors connected in parallel or series and provide reactive power for improving the power factor of the electrical system. Capacitor banks are important components in utility and industrial substations as they are useful in improving power factor and efficiency of the power supply system. Read this article to learn the basic concepts related to a capacitor bank, ...
Read MoreDifference between AB Switch and Isolator
In electrical power systems, different types of switchgear devices are used such as circuit breakers, AB switches, isolators for switching and protection purposes. These switching devices play an important role in power systems. There are two common types of switch devices used in electrical power systems are AB Switch (Air Break Switch) and Isolator. Although, the primary purpose of both AB switch and isolator is similar, but they are completely from each other in construction, operation, and many other aspects. For an electrical engineer, it is very essential to understand the differences between AB switch and isolators to design ...
Read MoreResidual Current Circuit Breaker (RCCB) - How It Works
Residual Current Circuit Breaker (RCCB) is a type of circuit breaker used in electrical circuits for protection purposes. The primary function of an RCCB is to detect a leakage in the circuit current. If there is any leakage in the current, the RCCB can interrupt the circuit and prevent the fault to be happened. Read this article to understand the functions, working principle, advantages, and applications of RCCB. What is an RCCB? RCCB (Residual Current Circuit Breaker) is a protecting device that detects any leakage current in the circuit and interrupt the circuit current. When a fault occurs in ...
Read MoreWhat are Automatic Voltage Regulators (AVR)?
In electrical power system, there is a device called Automatic Voltage Regulator (AVR) used to adjust the voltage levels within a desired limit. In other words, an automatic voltage regulator is an electronic circuit that is primarily used for regulating the output voltage of an electric generator, so that we can obtain a constant voltage even when the load is fluctuating. This tutorial will explain the construction, working, needs, advantages, and applications of automatic voltage regulators (AVRs). So, let’s start with the basic introduction of automatic voltage regulator. What is an Automatic Voltage Regulator? An AVR or Automatic Voltage Regulator ...
Read MoreWhat is Floating Neutral?
In an electrical system, there are three types of conductors used, they are phase, neutral, and ground. In general, the neutral wire is grounded for safety and stability reasons. But sometimes, a condition occurs where the neutral wire of the systems is disconnected from the ground terminal, this condition is known as floating neutral. In some special situations, the neutral wire is intentionally left isolated from the ground terminal, this is also known as floating neutral. In this article, we will learn about floating neutral in electrical systems, its effects, causes, and methods of testing and fixing the floating ...
Read MoreDifference between Permittivity and Permeability
There are two physical quantities namely Permittivity and Permeability that play a vital role in the field electrical engineering. Permittivity is related to electrostatics and it is the measure of electrical polarization of a dielectric material when it is placed in an external electric field. Permeability is related to electromagnetism and it is the measure of magnetic polarization of a magnetic material when it is placed in an external magnetic field. In this article, we will highlight all the key differences between permittivity and permeability by considering different parameters like basic definition, unit, formula, importance, etc. Let's start ...
Read MoreSubmersible Pump – Definition, Working, and Applications
A water pump is one of the most important equipment used in domestic and industrial applications to transfer water from one point to another. Depending on the purpose and need of the application, different types of water pumps are used. This article is meant for explaining one of the popular types of water pumps namely, submersible pump. Here, we will understand what is the submersible pump? How it works? their advantage and applications. So, let’s get started with the basic definition of submersible pump. What is a Submersible Pump? As the name implies, a type of water pump which is completely submerged in ...
Read MoreElectric Scooter – Components, Working, and Advantages
Today, electric vehicle industry is one of the fastest growing industry due to several benefits of electric vehicles. These days, we are using various types of electric vehicles such as electric scooter, electric bike, electric car, electric train, etc. This article is meant for explaining the working and benefits of an electric scooter. An electric scooter is a motor-powered two-wheeler that utilizes electricity as the main source of energy. Hence, one of the most significant advantages of electric scooter is that it is environment friendly. Let us now explore the electric scooter in detail. What is an Electric Scooter? An electric scooter, also ...
Read MoreDifference between Semi-Automatic and Fully-Automatic Washing Machine
A washing machine is one of the common household appliances used to wash and clean cloths and other fabric items. It is mainly designed to automate and speed up the process of washing cloths to make life more convenient and efficient. Depending on design and working, different types of washing machines are available in the market, such as top-loading washing machine, front-loading washing machine, semi-automatic washing machine, and fully-automatic washing machine. A typical washing machine consists of the following major parts − Tub − It is the main part of the washing machine. It is also called drum. The ...
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