Found 42 Articles for Electric Power System

In electrical machines, an induction motor is a type of alternating current (AC) motor which operates on the principle of electromagnetic induction. Induction motors are classified into two types depending on the power supply used; they are single-phase induction motors and three-phase induction motors. In this article, we will primarily focus on studying about three-phase induction motors and their faults. One of the important points about three-phase induction motors is that they are very commonly used in a wide range of domestic, commercial, and industrial applications due their smaller size, low cost, and higher efficiency. Before going to discuss ... Read More

An alternator is an electromechanical energy conversion device that converts mechanical energy into alternating current electrical energy. An alternator is basically a synchronous generator that produces electricity at a certain frequency. To drive the alternator, a prime mover is used. Some commonly used prime movers are steam turbine, water turbine, gas turbine, and diesel engine. Like any other rotating electrical machine, different types of faults can also occur in an alternator. Due to these faults, we get a reduced efficiency and performance of the alternator. Further, these faults can cause malfunctioning or complete failure of the alternator that imposes ... Read More

An energy meter is a device used for measuring the amount of electrical energy consumed by a load over a certain period of time. This device is essential for recording the electricity usages so that consumers can monitor and change the energy consumption patterns to reduce energy consumption and hence the bill amount. An energy meter is an important link between power supplier and consumers that allows them for efficient measurement of electricity supplied or consumed. What is an Energy Meter? An electrical device or instrument which is used for measuring the amount of electricity consumed by the consumers over ... Read More

This article is meant for explaining the two most widely used visual representations of electrical systems also called electrical diagrams. These diagrams are single-line diagram and multiline diagram. These two diagrams are used in electrical engineering to represent various electrical layouts and connection arrangements of electrical systems. In electrical engineering, the visual/graphical representation of electrical systems like distribution systems, control panels, transmission line, generating stations, etc. is very important to understand the connections of various system components, designing and analyzing electrical systems, and more. In the field of electrical engineering, the following two main types of visual representations are ... Read More

The most fundamental difference between dry-type and oil-filled transformer is that a dry-type transformer has a solid insulating material to provide insulation between conducting parts of the transformer, whereas an oil-filled transformer is one in which dielectric oil is used as the insulating medium. Both transformers have their own advantages, disadvantages, and applications. In this article, we will learn about the major differences between dry-type transformer and oil-filled transformer. But before that let us get an overview of an electrical transformer, dry-type transformer, and the oil-filled transformer. What is an Electrical Transformer? An electrical transformer is a static ... Read More

AC (alternating current) and DC (direct current) are two types of electrical current flow. The flow of electrical charge in AC alternates between positive and negative at regular intervals. The flow of electrical charge in DC is just one way, from positive to negative. Batteries, electronic gadgets, and some motors all use direct current. Read this article to find out more about AC Electricity and DC Electricity and how they are different from each other. What is AC Electricity? AC (alternating current) electricity is a form of electrical current flow that alternates between positive and negative at regular intervals. ... Read More

In electronic devices like computers, laptops, and more, power supplies are one of the most important components. Power supplies are essential for efficient and reliable functioning of the electronic devices. In most electronic devices, two types of power supplies are very common namely, SMPS (Switch Mode Power Supply) and LPS (Linear Power Supply). The primary function of both SMPS and linear power supply is the same, i.e. to convert a high voltage AC supply in a low voltage DC supply using an assembly of transformer and rectifier. But they are completely different from each other. The fundamental difference between SMPS ... Read More

A battery charger is used to recharge a battery when it is deeply or entirely discharged. A battery maintainer keeps the battery fully charged and prepared for usage by trickling in a small amount of charge on a regular basis. The amount of current they supply is one of the key differences between a battery charger and a battery maintainer. A battery maintainer maintains the battery's charge over time. While a battery charger often provides a high current output to quickly recharge a battery. Read this article to find out more about battery charger and battery maintainer and how they ... Read More

In an electric circuit, the rate at which the work is being done (or the energy is being expended) is known as electric power. Mathematically, electric power can be defined as the work done (or energy expended) per unit time, i.e., $$\mathrm{Power, \mathit{P}\:=\:\frac{Work\:done\:(\mathit{W})}{Time(\mathit{t})}}$$The unit of electric power is Joules per second.Based on the type of current, the electric power can be of two types viz.: DC power and AC power. The AC power is further classified into three main types as −Apparent power (S)Active power (P)Reactive power (Q)In this article, we will discuss about what the apparent power and the ... Read More

Welding and soldering are widely used in the fabrication industry. Both welding and soldering are used for joining metallic parts by the application of heat. In this article, we will compare welding and soldering by considering various factors like metaling temperature, heat source, use of flux, deformation, etc. But, before discussing about the differences between soldering and welding, it is advantageous to get the basic details of welding and soldering.What is Welding?A fabrication process which is used to join materials (metals or thermoplastics) by the application of high heat to melt the parts together and allowing them to cool, causing ... Read More