Simple electricity calculations intro part 1 youtube. Intro to electricity nyu tandon school of engineering. Voltage current resistance and electric power general basic. To convert a number which includes the k prefix to units, multiply the number preceding the k by 1,000. Electrical formulas play a great role in finding the parameter value in any electrical circuits. Overview the origin of the modern technical and electronic navy goes back to the beginning of. Download handbook of electric power calculations pdf. Parton has been the preferred book for students looking to gain an understanding of electrical theory and calculations for many years. No single discovery has affected our lives, our culture and our survival more than electricity. Common electrical units used in formulas and equations are. Voltage current resistance and electric power general. Build an intuitive understanding of current and voltage, and power. Electricity will only travel around a circuit that is complete.
The energy dissipated in 60 seconds can be calculated. The handbook of electric power calculationsprovides detailed stepbystep calculation procedures commonly encountered in electrical engineering. Never connect any component or lead to electrical outlets in any way. The coulomb is a measure of the quantity of electricity. Tlc recommends that you download and save this pdf document and assignment to your computer desktop and open it with. Notice how labview does all the calculations and even changes the frequency. You will be introduced to information that will be used in later. Electric power calculator calculation general basic electrical formulas mathematical voltage electrical equation formula for power calculating energy work power watts calculator equation power law current charge resistance converter ohms law and power law power formulae formulas understandimg general electrical pie chart two different equations to calculate power electricas ohms law audio. How much current is drawn by a toaster with resistance 12.
This module presents power calculations for singlephase and threephase ac circuits and includes the power triangle concept. In all practical problems of electrical calculations, it is assumed that the. The type of electricity that is used to power things we use is called current electricity. The residential electrical load calculator is preloaded with electrical information for you to chose from. In order to construct a building that will last into the future, a strong foundation is a prerequisite. This may be too small for actual load, must do load calculations. Simple electricity calculations intro part 1 physicshelp canada. The handbook of electric power calculations provides detailed stepbystep.
Methodology for electricity tariff calculation for. Parton has been the preferred book for students looking to gain an. Volume 1 of 4 module 1 basic electrical theory this module describes basic electrical concepts and introduces electrical terminology. Students will learn strong basics of electrical engineering and practical implementation of electrical fundamentals. Scientists, such as faraday, ohm, lenz, and kirchoff have found that electricity seems to behave in a constant and predictable manner in a given condition. There are times when you want some water but dont need all the water that the pipe can deliver, so you control water flow by adjusting the faucet. Basic electrical power fundamentals 46 kva is larger than kw because loads are inductive such as motors, discharge lighting, reactors and. Gussow, milton, schaums outline series, basic electricity, mcgrawhill. When a capacitor has a difference in voltage electrical pressure across its plate, it is said to be charged.
Amount of time, it can be expressed mathematically using the following equation. Vc, this simple equation can be solved to obtain vc. We all know what electricity is, or at least have a rough. Design calculations may be made either manually or by spuapproved computer programs.
Methodology for electricity tariff calculation for different activities page 4 of 8 growth. The concept of electricity is both familiar and mysterious. If a current of 1 amp flows for 1 second, then 1 coulomb of electricity has passed. Some one has hijacked one of your links electrical formulas and calculations. The circuit for the electricity to flow round needs to be built of electrical conductors and must provide a loop from the positive to the negative terminal of the battery. Basic nec code rules and design practice wire ampacity and size. In order to understand even the simplest concepts of electronics, you must first understand what electricity is. 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. Basic electrical engineering pdf notes bee pdf notes. This website uses cookies to improve your experience, analyze traffic and display ads. Printable science worksheets on current electricity, circuits, consudtors and insulators, and static electricity.
Design calculations establish minimum guidelines and requirements for generating electrical calculations on projects. Cell phones, flashlights, and even a cars headlights are powered by the electricity in batteries. Electrical is the branch of physics dealing with electricity, electronics and electromagnetism. Electrical load calculations for residential panel. We will create our first mental models for these basic electrical quantities. Most states require an electrician to pass an exam to receive a journeyman or master electrician license. Examples 3 and 4 are ac circuit calculations involving inductors.
Identify some common sources of each type of electricity. It can store electrical pressure voltage for periods of time. Please note that the ac circuit calculations will contain only the magnitude and not the phase angle of the answer to keep things simple. Take a free electrician math practice test to see what kind of math questions are on actual electrician license exams. 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. Basic principles the best distribution system is one that will, costeffectively and safely, supply adequate electric service to both present and future probable loadsthis section. State approval listing link, check to see if your state accepts or has pre approved this course. The following is a brief description of the information presented in each module of the handbook. Circuits incomplete circuit symbols we use these symbols to draw diagrams of circuits. The service entrance is the most expensive part of the electrical system to replace. To begin analysis of the voltages and currents at each part of a circuit, an understanding of these characteristics is necessary. A basic understanding of electrical theory is important in order to understand your job as a construction electrician.
Unfortunately, you cant adjust the thickness of an already thin wire. Electricity formulas are applied in calculating the unknown electrical parameters from the known in electric circuits solved examples. Chart on left shows the formulas used to calculate electricity. Note also that there is only one sort of mass, positive mass and that the gravitational interaction is always attractive, whereas in the case of electric charge there are. Basic energy units, terms and calculations war eagle. The module will present a number of different to pics. Me 416516 energy units need to distinguish between energy and power. Switches when a switch is open off, there is a gap in the circuit. The marginal cost of distribution is the annualised cost of incremental local facilities needed to connect customers and the annualised cost of higher voltage facilities needed.
Feb 20, 2017 this physics video tutorial explains the concept of basic electricity and electric current. A sound understanding of these basics prepares you for the more complex math skills youre. Aug 14, 2019 download handbook of electric power calculations pdf. Understand the electrical principles of direct cur rent dc. This module will cover the fundamentals of electricity in a practical way, and will not be complicated by complex theory and mathematical calculations. Understand the electrical principles of alternating current ac. Use kva for calculations unless load is resistive, ie. Sienko and plane, chemical principles and properties,2. Not every day will include working with complicated electrical formulas, but there will times during your career as an electrician when you will have to do some calculations. An electric stove consumes 5 mj of energy from a 230 v power supply when turned on in 60 minutes.
Wires and cables wires and cables are used to carry an electrical current. Metals are by far the most common electrical conductors, but. Me 416516 energy units need to distinguish between. R introduction to electronics department of electrical. Most commonly used electrical formulas are formulas related to. Example 1 determine the current flowing through the electric heater have p. Electrical calculations should be made for all spu projects that include electrical components and should be filed in the project notebook. Basic electricity test study guide test description section 2 page 2 january 1999 the basic electricity test, continued will i have to do any calculations. Introduction to electronics xvi 1 i use the word supposedly because, in my view, the official rewards for textbook authoring fall far short of what is appropriate and what is achievable through an equivalent.
This is true regardless of which type of electrician job you choose. Basic mathematical skills are used everyday by construction electricians. Both have the same basic form in that the force varies inversely with r2 and directly with either the product of the masses or the product of the charges of the objects. Two things are needed to make a an electricity do something useful.
After all, the whole purpose of electronics is to get electricity to do useful and interesting things. Construction electrician, your understanding and knowledge of basic electrical theory will able to conduct the navys mission. We are going to use a battery to provide the electrical potential. The handbook contains a wide array of topics and each topic is written by an authority on the subject. Basic electrical terms and definitions understanding electricity requires knowledge of these basic electrical terms. It explains how dc circuits work and how to calculate voltage, current, and electrical resistance using. Most circuit problems are due to incorrect assembly, always double check. Examples 1 and 2 are dc circuit calculations involving resistors. Chapter 2 basic math, electrical, and plumbing operations. The concepts in this unit are the essen tial basics that you must understand, because youll build upon them as you study electrical circuits and systems. The faraday constant is the single most important bit of information in electrolysis calculations. We explain concepts like electricity, resistance, voltage, inductors, capacitors, electromagnetism, and more.
Engineers mininotebook formulas, tables and basic circuits. The treatment throughout the handbook is practical with very little emphasis on theory. Electronics is the processing of electrical charges as information. Nec calculations and code questions 9 unit 5 raceway, outlet box, and junction boxes calculations 140 part a raceway fill 140 51 understanding the national electrical code, chapter 9 140 52 raceway and nipple calculation 145 53 existing raceway calculation 147 54 tips for raceway calculations 148. The technical content has been revised and updated to the requirements of the new 17th edition of the iee regulations bs 7671. Many circuits have more than one conversion device in them i. Basic dc theory basic dc circuit calculations when any two resistors are unequal in a parallel circuit, it is easier to calculate r t by multiplying the two resistances and then dividing the product by the sum, as shown in equation 211. Basic electricity test study guide skill and knowledge checklist section 1 january 1999 page 1 introduction overview this study guide is designed to familiarize you with the basic electricity knowledge and skills required by bellsouths technical jobs and covered by. Fundamentals of electricity welcome to module 2, fundamentals of electric ity. Academic program for nuclear power plant personnel, volume iv, columbia, md. If you are trying to calculate instantaneous demand and have a pulse meter, try this equation. The amount of push is the voltage measured in volts. Once each part of the design plan has been defined, the next stage is to design each part to industryrecognized standards as well as any additional stan.
It cannot be solar or have alpha characters on the keypad. Calculation of electrical energy energy onpage 157 we dealt with power arid noted that power is the rate at which energy is transferred from one place to another or from one form to another the formula that links energy and power is. Simple electricity calculations charge and current qne part 2. Basic dc theory basic dc circuit calculations basic dc circuit calculations each type of dc circuit contains certain characteristics that determine the way its voltage and current behave. Calculate rotor diameter accounting for efficiency losses 44. Basic electrical engineering for hvac engineers a heating, ventilating and airconditioning hvac system is a simple system of heating and cooling exchangers using water or refrigerant direct expansion system as the medium. Electricity from the wall outlets in your house powers your television, computer, lights, and microwave. The most common used electrical formulas ohms law and combinations engineering toolbox resources, tools and basic information for engineering and design of technical applications.
A chemical reaction inside the battery works like a pump to push electricity. The letter k is used in the electrical trade to abbreviate the metric prefix kilo, which represents a value of 1,000. Alternating current ac ammeter ampacity amperehour ah ampere a apparent power armature capacitance capacitor circuit circuit breaker conductor corona current i cycle demand dielectric constant dielectric strength diode direct current dc electrolyte. Energy storage systems ess are now making renewable energy a more viable option by helping to stabilize power output during transient dips or interruptions to power production.
Never connect any component or lead to electrical outlets in any way warning. If the circuit components are connected end to end to form a single loop it is a seriescircuit. Feb 18, 20 simple electricity calculations intro part 1 physicshelp canada. In the given circuit, calculate current i, the conductance g and the power p.
Most singlephase applications will be for residential and small commercial buildings balanced 3phase power measurement. The general electrical load requirements are based on the inside square feet area of the home which is then used to calculate the basic lighting load and required appliance circuits. Understand the requirements and configurations of electrical circuits. This edition has been updated so that the calculations and explanations comply with the 17th edition wiring regulations. You will be required to bring a calculator that is silent, handheld, and battery operated. The simple examples given here should illustrate the basic calculation methods that are used to solve for various circuit parameters. Electrical formulas for load calculation electrical. Students will learn different applications of commonly used electrical. Nam june paik, one of the pioneers of the field of electronic art, makes this distinction very clear by commenting on electricity and electronics.
The power rating energy per unit time of the stove can be calculated as. Basic math, electrical, and plumbing operations topics 1. The electrical science handbook consists of fifteen modules that are contained in four volumes. A capacitor is an energy storage element which is analogous to the spring element of mechanical systems. Electrical circuit calculations series circuits many circuits have more than one conversion device in them i. Calculations and design electrical basics mayjune 2011.
873 290 896 3 951 1620 553 1253 430 822 266 1169 432 992 1182 82 755 582 967 804 345 569 518 52 521 650 435 1515 529 1142 92 307 1120 400 689 610 1076 959