By electric traction is meant locomotion in which the driving or tractive force is obtained from electric motors. Electric traction is an environmental friendly, pollutionfree and energy efficient alternative to fossil fuels. One of the major application of an electric drive is to transport men and materials from one place to another. Pdf comparative study of using different electric motors in. Download free sample and get upto 51% off on mrprental. This trend is anticipated to result in an improved scope of demand for traction transformers in the electric locomotives segment over the forecast period. Electricity means that a battery sometimes assisted by ultracaps is used to store the energy, and that an electromotor from now on called motor will be used as traction motor. Presentation on economies of traction diesel vs electric ebook download ppt. Chapter one first pantograph second main circuit breaker pantograph effect electric traction power from the catenary to.
Nov 30, 2015 the traction system can be classified as nonelectric and electric traction systems. Ppt electric traction system powerpoint presentation. And electric traction by jb gupta by kerstin vogler mentoring from the website as pdf, kindle, word, txt, ppt, rar as well as zip data. Electricity enables faster acceleration and higher tractive effort on steep grades. Electric traction report, electric traction ppt download, electric traction pdf, electric traction, electric traction fundamentals, electric traction, electric traction. Relies on a pulley system drive sheave controlled by.
Electric traction full seminar report, abstract and presentation. A free powerpoint ppt presentation displayed as a flash slide show on id. Electric traction 1701 however, the steam locomotive suffers from the following disadvantages. The goal of the study presented in this article is to provide a general overview of the various aspects related to electric vehicles evs, along with all associated emerging challenges and. These transformers also find high adoption in highspeed trains. Electric traction on indian railways indian railway employee. Introduction, requirements of an ideal traction, systems of traction, speed time curve, tractive effort, coefficient of adhesion, selection of traction motors, method of speed control, energy saving by series parallel control, ac traction equipment. Electrical shock occurs when the body becomes part of the electric circuit, either when an individual comes in contact with both wires of an electrical circuit, one wire of an energized circuit and the ground, or a metallic part that has become energized by contact with an electrical conductor.
Which of the following is an advantage of electric traction over other methods of traction. In ohe, or overhead electrification systems, the supply of electricity is through an overhead system of suspended cables known as. Electric traction b disadvantages because of difficulty of installing a condenser on a locomotive, the steam engines employed are of noncondensing type, therefore, efficiency is very poor 6 to 8%. In an electric traction system the driving force to pull a train is generated by the traction motors. Gtu electrical power utilization and traction semester exam previous year question paper download pdf. May 22, 2016 electric traction means using the electric power for traction system i. Power electronics and electric drives for traction. It is used in electric trains, tramcars, trolley buses and dieselelectric vehicles etc. Utilization of electrical energy pdf notes uee pdf notes. Asia pacific is the largest market for electric traction motor. Characteristics of electric traction the main advantage of electric traction is a higher powertoweight ratio than forms of traction such as diesel or steam that generate power on board. However, since the 1980s, they have been replaced by alternating current ac motors, one type of. What are the voltages used for electric traction in india. In mechanical terms, it is defined as the adhesive friction between the wheel and the surface on which it moves between a car tire and road.
Electric machines are replacing ices even in traction applications such as vehicles and ship propulsion. A modern electric drive system is conceptually illustrated in figure 2. Electric propulsion subsystem consists of vehicle controller. There are manual pallet jacks you batterypowered models that can help lift and move heavier and. A fascination for electrical students use of traction motors. Brushless dc motor design for electric traction system. Electric traction system free download as powerpoint presentation. The final decade of the 20 th century and the first decade of the 21 st century were marked by the enormous rise in high speed due to the huge leaps forward in electric locomotive technology. Ppt electric traction system powerpoint presentation free.
Nov 15, 2016 this video provides a general perspective of how electric drives technology is a key technology that facilitates to produce devices that we can find in our daily live such as. Automatic regeneration is the main advantage in electric traction with this motor. The year 1881 saw the birth of the first electric railway run by a german engineer werner van siemens using both the rails to carry the current. As a consequence, nearly 23rd of all electrical power is utilized by electrical machines in the form of electric drives. Traction inverter usually 3phase permanent magnet motors are used for traction operating voltage from 300v to 750v inverter must be bi directional feeds the electric motor when driving the wheels streams energy back on hv bus when vehicle brakes applied nominal power ranging from 10kw ice assistance to 200kw pure ev. The electric traction system can be broadly divided into two groups.
What is an electric locomotive systems and their types in india. Geared electric traction elevators gearless electric traction elevators governor roped hydraulic safeties sheaves traction 5 electric traction and mrl elevators thinking back to course 200, what are some things you remember about electric traction elevators. Railway technology today 4 edited by kanji wako what drives electric multiple units. The electric traction system ppt briefly discusses the types, supply system, traction motors, braking system, advantages and disadvantages and recent trends. Electric traction has many advantages as compared to other non electrical systems of traction including steam traction. Use of electronics to bring down distance and time. Scribd is the worlds largest social reading and publishing site. A hybrid electric vehicle hev has two types of energy storage units, electricity and fuel. Utilization of electric power and electric traction by jb. The track electrification refers to the type of source supply system that is used while powering the electric locomotive systems. Brushless dc motor design for electric traction system md.
Introduction traction motor refers to an electric motor providing the primary rotational torque of a machine, usually for conversion into linear motion traction. The seminar report explains the electric traction system which is the most efficient of all other traction systems. Utilization of electrical energy pdf notes uee pdf notes unit i electric drives. Technically, it is a mechanical, hydraulic, or electric system that maintains or controls traction to any wheels driven by the engine. All heating requirements in domestic purposes such as cooking, room heater, immersion water heaters, and electric toasters and also in industrial. It involves utilization of electric power for traction systems i. May 22, 2018 download electric traction systems seminar report with ppt. Prepared by myself dipak meher,i have made this ppt for final year students. Oct 20, 2017 traction is defined as the act of drawing or pulling especially by a motive force drawing of carriage by horse constitute traction.
Drive propulsion system consists of three major subsystems. An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or onboard energy storage such as a battery or a supercapacitor electric locomotives with onboard fueled prime movers, such as diesel engines or gas turbines, are classed as dieselelectric or gas turbineelectric and not as electric locomotives, because the electric generatormotor combination. The system which use electrical power for traction system i. A traction system that doesnt use electrical energy for the movement of vehicle at any stage is referred as nonelectric traction system. Electric traction free download as powerpoint presentation. Electricity enables faster acceleration and higher tractive effort on steep. Electric traction and mrl transit elevatorescalator consortium 6. Electric traction railways electric motor components.
Electric energy generation utilization and conservation ebook download ppt. Now a day, magnetic traction is also used for bullet trains. Pallet jacks, also known as nd move pallets of m operate by hand, and. Hybrid and electric vehicle technologies and programmes annual report of the executive committee and task 1 over the year 2012 hybrid and electric vehicles the electric drive gains traction concept and editing. This chapter presents the markov reward approach to the comparative analysis of different types of traction electric motors for hybridelectric propulsion systems, that is, multistate systems. As we all know, it is electric locomoti ves that are at the forefr ont of railway traction, while the diesel locomotive is kept for some very specific uses. At present 28 per cent of route kilometres on indian railways are electrified. Electric traction railways free download as powerpoint presentation.
If you continue browsing the site, you agree to the use of cookies on this website. Traction motors are used in electrically powered rail vehicles such as electric multiple units and electric locomotives. Electric traction system engineering seminar topics. Electric traction mcqs answers pdf electrical engineering multiple choice questions answers. Electric traction will continue to play a dominant role. Global electric traction motor market is expected to witness substantial growth during the forecast period owing to investment in rolling stock and growing focus on electric vehicles in order to reduce carbon emission. There are various system of electric traction existing such as electric train. This ppt helps to understand the concept of electric traction. Review of characteristics of different types of dc and ac motors used traction and their suitability moduleiv 10 hours rating and heating of electric drives, power loss, heating and cooling of motors, classes and duty and selection of motors, drives for specific application like steel, paper, textile mills. Download electric traction systems seminar report with ppt. This ppt helps to understand the concept of electric traction slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Electric traction alternating current electric power.
Utilization of electrical enrgy and electric traction. This video provides a general perspective of how electric drives technology is a key technology that facilitates to produce devices that we can find in our daily live such as. The permissible range of voltages allowed for the standardised voltages is as stated in standards bs en 50163 and iec 60850. Electric traction systems ppt download slideplayer. Hiroshi hata evolution to ac motors direct current dc traction motors were used for a long time after the development of electric railways. The steam engine drive is the best example of a non electric traction system and it is the. Introduction electric traction means a locomotion in which the driving force is obtained from electric motors. Three phase induction motors provides constant speed operation, developing low starting torque drawing high starting current and complicated control networks makes it unsuitable for electric traction work. Electric traction full seminar reports, pdf seminar abstract, ppt, presentation, project idea, latest technology details, ask latest information. Traction is defined as the act of drawing or pulling especially by a motive force drawing of carriage by horse constitute traction. Electric traction means a locomotion in which the driving force is obtained from electric motors. At each traction substation, normally two single phase transformers are installed, one which is in service and the other is 100% stand by. T railway technology today 4 edited by kanji wako what. Massachusetts institute of technology 1 introduction this is a concept paper in response to the foa entitled rare earth alternatives in critical technologies for energy react.
Electric traction 1881 after many decades of satisfactory performance, the steam engines were to give way to more modern locomotives. There are many other voltage systems used for railway electrification systems around the world, and the list of current systems for electric rail traction covers both standard voltage and nonstandard voltage systems. Some of the technical discussion is based on work that has been reported in a conference publication1. A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives. Ppt electric traction powerpoint presentation free to.
Sep 11, 2016 three phase induction motors provides constant speed operation, developing low starting torque drawing high starting current and complicated control networks makes it unsuitable for electric traction work. Advent of electric traction in ir dates back to 1925 when the electric train services introduced between bombay vt and kurla harbour on 1500 volt dc. Traction control is a technology designed to help your vehicle maintain traction, no matter how slippery the road surface. Pallet jack safety state compensation insurance fund. Kristin abkemeier operating agent task 1, new west technologies coediting. For traction purposes mostly 3phase induction motors and d. Electric traction has many advantages as compared to other nonelectrical systems of traction including steam traction. The railway sector is increasingly shifting towards novel technologies and cleaner and faster machines. Electric traction means using the electric power for traction system i. The drive which uses the electric power for moving forward, such type of drive is called an electric traction drive. Alison mize new west technologies and the anl editorial. May 16, 2018 traction control is a technology designed to help your vehicle maintain traction, no matter how slippery the road surface. Type of electric drives, choice of motor, starting and running characteristics, speed control, temperature rise, particular applications of electric drives, types of industrial loads, continuous, intermittent and variable loads, load qualization. Review of characteristics of different types of dc and ac motors used traction and their suitability moduleiv 10 hours rating and heating of electric drives, power loss, heating and cooling of motors, classes and duty and selection of motors, drives for.
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