Basic concept of electricity pdf

Electric power systems pennsylvania state university. Electricity is the flow of electrons in a conductor from one atom to the next atom in the same general direction. Electric charge refers to a fundamental property of matter that even physicists dont totally understand. Check all the v k mehta electrical engineering books for the better scoring in the exam. This flow of electrons is referred to as current and is designated by the symbol i. Intro to electricity nyu tandon school of engineering. For example, after rubbing a piece of silk against a piece of glass, the silk and glass would tend to stick together. Aspirants who are pursuing electrical engineering from various states. Gussow, milton, schaums outline series, basic electricity, mcgrawhill. The information in the handbook is presented to provide a foundation for applying engineering concepts to the job.

Now that you have a basic understanding of electricity, you can safely read electrical safetyby clicking on. The term matter refers to anything that occupies space and has mass. Cell phones, flashlights, and even a cars headlights are powered by the electricity in batteries. Electricity will only travel around a circuit that is complete. A basic understanding of electricity and electrical systems is necessary for doe nuclear facility operators, maintenance personnel, and the technical staff to safely operate and maintain the facility and facility support systems. No single discovery has affected our lives, our culture and our survival more than electricity.

Basic electricity fundamentals information in power and. Just like marbles in a tube or water in a pipe, it takes some kind of. This was the convention chosen during the discovery of electricity. At the end of the course the student is expected to 1. Electric current is one of the most basic concepts that exists within electrical and electronic science electric current is at the core of the science of electricity. Here we provide detailed information about how to download all the v k mehta books free online. At first, these concepts can be difficult to understand because we cannot see them.

Basic electricity fundamentals information in power and energy. The highest flux density occurs when the conductor is formed into a coil having many turns. For each lecture, the powerpoint file is available, along with a fullcolor 4slideperpage pdf version. Let us now see what happens to such a piece of conductor if an electric field is applied. Although the definition of smart grid varies from country to country, the underlying concept is the same. It was discovered centuries ago that certain types of materials would mysteriously attract one another after being rubbed together. While is is possible to produce motors powered by high voltage and low current characteristic of static electricity, this is not economic. We see that the villager pays about 8 times more for his electricity than the consumer in the town. As opposed to static electricity where charges gather and remain at rest, current electricity is dynamic, charges are always on the move. A resistor impedes the flow of electricity through a circuit.

Static electricity is, for the most part, a nuisance. Volts, amps, watts, fuse sizing, wire gauge, acdc, solar power and more. In 2017 a,networkmodeldriven inertia calculation was implemented into the ercot ems system. However, the concept of conventional current is still applied to almost all the circuit. The common form of electricity from power plant to homeoffice. Supplementary materials such as handouts and vocabulary cards will be presented in the unit. The concepts in this unit are the essential basics that you must understand, because youll build upon them as you study electrical circuits and systems. References to energy can be found in national education standards in nearly all academic disciplines. It cannot be assumed that this manual contains all measures and concepts required for specific. When a capacitor has a difference in voltage electrical pressure across its plate, it is said to be charged. It can store electrical pressure voltage for periods of time. In order to understand even the simplest concepts of electronics, you must first understand what electricity is. Resistor concept ii a resistor is a dissipative element.

It causes damage to sensitive semiconductor circuitry. The basic idea of communication engineering is to use a signals parameters to represent. Basic concepts chapter objectives discuss the history of electricity present a basic overview of todays electric power system discuss general terminology and basic concepts used in the power industry explain the key terms voltage, current, power, and energy discuss the nature of electricity and terminology relationships. Current electricity is the form of electricity which makes all of our electronic gizmos possible.

It was aristotle 384322 bc who developed the concept of fire as one of four basic elements of nature first described by empedocles 490430 bc, the other three being earth, water and air. After all, the whole purpose of electronics is to get electricity to do useful and interesting things. Basic definitionterminology electric load electricity consumers, such as residences, businesses, and government centers that use electricity. Resistor concept i flow of electric current through a conductor experiences a certain amount of resistance. Basic electrical engineering books free pdf download by vk. One big headache for the power company is that when electricity travels in wires, it loses energy. Students will learn strong basics of electrical engineering and practical. Evolution of a concept historians of science have probably written more essays on the development of the concept of energy than on any other subject. Differentiate between the characteristics of ac and dc power to explain why ac power is widely used in electrical systems. We all know what electricity is, or at least have a rough. This course is part one of a twopart course on basic concepts and applications of power systems. Power systems basic concepts and applications part i page 3 the steadystate equivalent circuit of a synchronous generator can be drawn as an internal voltage source and its directaxis synchronous reactance in series as shown in figure 22. These atoms start vibrating and transfer their energy to.

This curriculum unit is designed to teach a few basic concepts of electricity to middle school students. Developing a basic knowledge of electrical concepts, however, will help you to better understand customer applications. Static electricity is, for the most part, a nusiance. The concepts discussed herein are intended to provide explanation and clarification of basic electrical safety for individuals who have little or limited training or familiarity with the field of electricity. Basic concepts of electrical engineering 8 the value of the voltage or current of an a. The type of electricity that is used to power things we use is called current electricity. The examples and data in the basic energy concepts are from the international courses on rural energy planning at twente university.

Lets start with three very basic concepts of electricity. The following is a brief description of the information presented in each module of the handbook. As was previously mentioned, we need more than just a continuous path circuit before a continuous flow of electrons will occur. The resistance, expressed in ohms, named after george ohm, kiloohms k, , or megaohms m, 106 is a measure of how much a resistor resists the flow of electricity. Voltage, current, resistance, power the mountain analogy current, voltage, resistance, and power are the four basic properties of electrical circuits. Electric power transmission the process by which large amounts of electricity produced are transported over long distances for eventual use by consumers. An introduction to electric power transmission presentation. It is analogous to the viscous friction element of mechanical system.

Tlc recommends that you download and save this pdf document and assignment to your computer desktop and open it with. Power systems basic concepts and applications part i. Circuits incomplete circuit symbols we use these symbols to draw diagrams of circuits. Their language was characteristically plain and direct, and was. The electrical science handbook consists of fifteen modules that are contained in four volumes. Preface the 5th edition of basic electrical installation work has been completely rewritten in 14 chapters to closely match the 14 outcomes of the city and guilds quali. Electricity is define as the flow of electron or electric current.

Basic concepts and impacts on the ercot grid ercot public. In electronics and electrical technology, a coil is. While it is possible to produce motors powered by high voltage and low current characteristics of static electricity, this is not economic. Earlier on,we discussed how electricity is generated at the power station. This view remained unchallenged for the next two thousand years. Academic program for nuclear power plant personnel, volume iv, columbia, md. This power station may be many hundred miles kilometers from your home or hospital and this means that the electricity has to travel very far before reaching you. Introduction chapter 1 direct current direct current basics dc circuits magnetism chapter 2 alternating current alternating current basics inductance and capacitance ac circuits transformers final exam if you do not have a basic. The system is represented with an infinite bus, which holds a constant voltage. Aevs include battery electric vehicles bevs and fuel cell electric vehicles fcevs.

A convention is a standard way of describing something so that others in. To understand what this means, we need to start simply. In order for the sourceanddestination scheme to work, both would have to have an infinite capacity for charges in order. These are the three basic building blocks required to manipulate and utilize electricity. Black powder and smokeless powder have graphite added to prevent ignition due to static electricity. Knife switches are great for illustrating the basic principle of how a switch works, but they present distinct safety problems when used in highpower electric circuits.

Volume 1 of 4 module 1 basic electrical theory this module describes basic electrical concepts and introduces electrical terminology. Current electricity 95 number of electrons travelling in any direction will be equal to the number of electrons travelling in the opposite direction. Build an intuitive understanding of current and voltage, and power. Chapter 1 basic concepts of electricity pdf version. Know the fundamental of electrical engineering and practical. Practical implementation of fundamental theory concepts. Current is measured in amperes, which is often shortened to amps. Electricity is the part and parcel of our modern life and it is the most widely used form of energy. The concept of electricity arises from an observation of nature.

The approach to establishing such a system varies by country and region. Switches when a switch is open off, there is a gap in the circuit. Ohms law is the relationship between power, voltage, current and resistance. If you continue browsing the site, you agree to the use of cookies on this website. Basic electrical engineering books free pdf download by vk mehta. Resistors allow current to flow to some degree in proportion to their resistance in ohms. Chapter 1 basic concepts of electricity pdf version you might have been wondering how charges can continuously flow in a uniform direction through wires without the benefit of these hypothetical sources and destinations. It is very important to understand these three concepts well. Electricity basics when beginning to explore the world of electricity and electronics, it is vital to start by understanding the basics of voltage, current, and resistance. Basic electrical engineering pdf notes bee pdf notes. Sienko and plane, chemical principles and properties,2. Man has learnt about electricity from nature as it is also a basic part of nature. This form of electricity exists when charges are able to constantly flow. Pdf guide to basic electric power generation concepts.

Pdf chapter 1 of the book,basic concepts of electrical. For now this is not terribly important to be aware of, just the basic concept of what a switch is and how it works. In addition to charging from the electrical grid, both types are charged in part by regenerative braking, which generates electricity from some of. Plus, get practice tests, quizzes, and personalized coaching to help you succeed. Bee basic electric engineering is common to first year branches of ug engineeringexpect bt. Apr 29, 2018 among the basic concepts of static electricity and in reference to what interest us kitesurfing it is necessary to understand how things work so as to not discover another reason to end our kite session badly if could get hit by a lightning. Espino buhatan national high school purok marcos, buhatan, sorsogon city 2. You might have been wondering how charges can continuously flow in a uniform direction through wires without the benefit of these hypothetical sources and destinations. Electron flow is what actually happens and electrons flow out of the negative terminal, through the circuit and into the positive terminal of the source.

Electricity from the wall outlets in your house powers your television, computer, lights, and microwave. Joule, wa to unit conversions and basic problems involving current and voltage. As a member, youll also get unlimited access to over 79,000 lessons in math, english, science, history, and more. Fundamental electrical concepts charge, current, voltage, power and energy chapter 2, sec. When electrons enter at one end of a resistor, some of the electrons collide with atoms within the resistor. The math and basic electrical concepts of this unit are very similar to the foundation of a building. Fundamentals of electricity the technical term electricity is the property of certain particles to possess a force field which is neither gravitational nor nuclear. Let us start by explaining what electric current is. An energy balance of a region or country is a set of relationships accounting for all energy which is produced, transformed and consumed in a certain period. There are lots of tools to help you with the basics.

Everything, from water and air to rocks, plants and animals, is made up of minute particles called atoms. The principles apply to alternating current ac, direct current dc, or. When an electric circuit flows through a conductor, a magnetic field or flux develops around the conductor. We observe a force between objects, that, like gravity, acts at a. Whether it is an electrical heater, a large electrical grid system, a mobile phone, computer, remote sensor node or whatever, the concept of electrical current is central to its. The course content is in pdf format in each module. Electricity and magnetism basic concepts slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. It is analogous to the viscous friction element of. Electricity basics explained without using complicated physics. An understanding of these principles is essential for comprehension of oshas electrical safety standards. For the following concepts please also consult the course book physical computing osullivanigoe chapter 1 pp. Private use networ k pun units were considered on line if their gross.