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Articles by Manish Kumar Saini
Page 2 of 80
Types of Power Plants – Advantages and Disadvantages
A power plant is a systematic arrangement of electrical equipment used for producing electrical power. In other words, an industrial facility used for producing bulk amount of electric power is called a power plant. Power plant is also called generating station or power station. These power plants are connected to an electrical network, called grid or power grid. A typical power plant contains many electrical and mechanical equipment such as prime mover or turbine, alternators, transformers, circuit breakers, conductors, etc. A source of energy like steam/flowing water is used to rotate the prime mover that in turn drives the alternator ...
Read MoreElectrical Substation – Types and Components
In electrical power systems, electric power is generated, transmitted, and distributed in the form of alternating current. The electrical power is generated at a power generating station which is located far away from the consumer's load. The generated power is then transmitted and distributed through an electrical network to the load ends. But it is also important to note that power is generated at a lower voltage, transmitted at a higher voltage, and distributed at a lower voltage again. This voltage variation is for many technical and economic reasons. For changing this voltage at many locations in the power system, ...
Read MoreDifference between AIS and GIS Substation
AIS and GIS are the two most widely used switchgear technology in the field of electrical substations. AIS stands for Air Insulated Switchgear and GIS stands for Gas Insulated Switchgear. A substation in which the insulation between phases is provided by the atmospheric air is called an air insulated substation or AIS substation. On the other hand, a substation in which the insulation within phase and between phases is provided by SF6 gas is known as a gas insulated substation or GIS substation. The primary difference between AIS substation and GIS substation is that an AIS substation uses the atmospheric ...
Read MoreTypes of Oil Circuit Breakers (OCBs)
Oil circuit breakers (OCBs) are used for performing the following two important functions - Switching of electric supply Protection of electrical system They are called oil circuit breakers because in this type of circuit breakers, insulating/dielectric oil is used for quenching the arc. In this article, we will learn about the basics of oil circuit breakers and their different types. What is an Oil Circuit Breaker? An oil circuit breaker is an electrical switch in which an insulating or dielectric oil is used for arc quenching. As we know, when a fault occurs in the electrical system, we ...
Read MoreHow Does an Electrical Relay Work?
In electrical engineering, a relay is an electromagnetic or an electronic switch that can automatically operate if any abnormal conditions occur in the circuit. The primary functions of a relay are to monitor the circuit, sense the fault, and initiate the tripping of the circuit if a fault occurs in the system. Read this article to learn the operation of a relay. Let's start with some frequently used terms related to the operation of a relay. Relay Operation Terminology The following are some key terms related to the operation of a relay in power system. Operating Force or Torque - ...
Read MoreMCB (Miniature Circuit Breaker) Types and Applications
An MCB or Miniature Circuit Breaker is a type of circuit breaker or an automatic electric switch used to provide protection against different types of electric faults like short-circuit, overcurrent, overload, etc. Therefore, MCB is considered an electrical protection device. MCBs are primarily used in low-voltage electrical circuits like house wiring, commercial wiring, etc. They are not commonly used in high-voltage industrial applications. The main function of an MCB is to protect an electric circuit from damages due to flow of excessive current. This article is meant for explaining the following major concepts related to MCB (Miniature Circuit Breaker) ...
Read MorePower System Protection – Components and Importance
A power system is an interconnected network of electrical components such as alternators, transformers, transmission and distribution lines, and electrical loads. Each of these components are sensitive to different types of faults or abnormal conditions. For example, a transformer can burn due to overloading or short-circuit. Therefore, it is desirable to implement such systems that can protect these highly expensive electrical equipment from damage. This practice of implementing protection systems for power system or its components is referred to as power system protection. In this article, we will explain in detail the components, important terms, and the importance of power ...
Read MoreProtective Relays and Their Functional Characteristics
A protective relay is an electrical switch which can automatically operate when a fault or any other abnormal conditions occur in the electrical system. It sends a signal to turn on the alarm or indicator or trip a circuit breaker to separate the faulty part from the healthy section. The primary function of a protective relay in an electrical circuit or system is to sense the fault and initiate the operation of a circuit breaker to which it is connected. A protective relay is one of the most important components of an electrical protection system, as it is entirely ...
Read MoreFaults in Electrical Power Systems – Causes and Effects
In the field of electrical engineering and power systems, a fault is an abnormal condition that can result in damages to the circuit. Hence, a fault is nothing but a defect in the power system. When a fault occurs in a power system, we need a "power system protection" scheme that can isolate the faulty part from the healthy part. In this article, we will learn about basic definition of a fault in power system, its main causes and effects. So, let’s get started with the basic definition of the electrical fault in power system. What is a Fault in ...
Read MoreDifference between Primary Protection and Backup Protection
The main difference between primary protection and backup protection is in their functionality. Primary Protection is provided to quickly detect the fault and isolate the faulty section from the healthy part, while Backup Protection is provided to isolate the faulty and healthy parts if the primary protection fails. In this article, we will discuss in detail about the primary and backup protections used in power systems along with the major differences between them. So, let’s begin with a basic introduction of primary and secondary protections. What is Primary Protection? Primary protection is defined as the initial layer of protection ...
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