Hence, it is possible to achieve higher acceleration of 1. At present 28 per cent of route kilometres on indian railways are electrified. Briefly described, an electric railway is a combination of a source of electric energy, means for transmitting it to vehicles along a right of way, including the raising and lower ing of electrical pressures and conversion of type of current, and motors on the. An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or. The mechanics involves conversion of overhead electrical powerdieselsteam power in rail horse power to haul a train encountering acceleration, train, grade, curve resistance and similarly braking. Electric traction railways free download as powerpoint presentation. The shift to domestic production of electric equipment for public trams was going forward at the time, but these were simply exact copies. Global industry opportunity analysis and forecast to 2025 the ev traction motor market report offers a complete picture of industry trends and factors along with quantitative data based on historical data and from various sources. The second part describes structural interior wiring circa 1901. Electric traction the system which use electrical power for traction system i. May 06, 20 traction mechanics is the study of train motion. Railway traction, reliability and safety in railway, xavier perpinya, intechopen, doi.
In simulation study, the tractionlocomotive system was divided into four transient processes by the physical process of the electric locomotives neutralsection passing, to establish equation. Advantages of ac traction systems it is possible to use regenerative braking in electric traction system. A book for students, electrical and mechanical engineers, superintendents of motive power and others. Comments on the regional railroad network and power grid interconnection pdf. A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives or electric roadway vehicle traction motors are used in electrically powered rail vehicles electric multiple units and other electric vehicles including electric milk floats, elevators, roller coasters, conveyors, and trolleybuses, as well as vehicles with electrical transmission systems diesel. In simulation study, the traction locomotive system was divided into four transient processes by the physical process of the electric locomotives neutralsection passing, to establish equation. It is used in electric trains, tramcars, trolley buses and diesel electric vehicles etc. Electric equipment of privaterailway highspeed emus was comprised mostly of imports.
The trend of electrical and diesel energy cost in terms of unit charges and rslitre as compiled in the annual statistical statement of. Distribution of the traction return current in at electric railway systems article in ieee transactions on power delivery 203. Railway electrification as a means of traction emerged at the end of the nineteenth century, although experiments in electric rail have been traced back to the midnineteenth century 1. This is a reproduction of a book published before 1923. Even so, many notable innovations occurred simultaneously yet independently. Electric traction electrotechnics and electrification jeanmarc allenbach 2. Traction motors are used in electrically powered rail vehicles such as electric multiple units and electric locomotives. 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. In coasting, the diesel engine continues to supply energy to the generator for some time, and the generated electricity is used to charge the. Traction systems for locomotives and highspeed applications english pdf. Power electronics and electric drives for traction applications offers a practical approach to understanding power electronics applications in transportation systems ranging from railways to electric vehicles and ships. Traction motor simple english wikipedia, the free encyclopedia. A free powerpoint ppt presentation displayed as a flash slide show on id.
Analysis of the electric locomotives neutralsection. Electric traction current, car, railway, motor, motors. 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. Thomas davenport, in brandon, vermont, erected a circular model railroad on which ran batterypowered locomotives or locomotives running on batterypowered. 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. Traction electric drive for railway application has. Traction motors in diesel locomotives ee publishers. Electric traction rail transport alternating current. Electric traction is an environmental friendly, pollutionfree and energy efficient alternative to fossil fuels. The track electrification refers to the type of source supply system that is used while powering the electric locomotive systems. Power electronics and electric drives for traction. Building an electric railway traction collectors library by serrell, lemuel william and a great selection of related books, art and collectibles available now at.
Development of electric railways led to great improvements in design, not only in locomotives and coaches operated by electricity, but also in the generation and methods of distributing the electric current produced. Railway electric traction describes the various types of locomotive and multiple units that are used on electrification systems around the world. Railway technology today 3 edited by kanji wako railway. Although experimental electric motors were built more than a century ago electric traction is a modern development. Electric vehicle and electric motor traction motor refers to a type of electric motor. One of the major application of an electric drive is to transport men and materials from one place to another. On the nationalisation of the railways in 1948 he was appointed chief electrical engineer to the railway executive, and relinquished this post in 1950 to become general manager of the traction department of the english electric co. Economics of electric vs diesel traction railelectrica.
A railway electrification system supplies electric power to railway trains and trams without an. Electric traction has many advantages as compared to other nonelectrical systems of traction including steam traction. Railway technology today 3 edited by kanji wako railway electric power feeding systems yasu oura, yoshifumi mochinaga, and hiroki nagasawa introduction electric power technology in the railway industry refers to the means of supplying goodquality electric power to the electric motors. 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. Developments in traction systems university of birmingham. Rail transport is coming back into favour for the transportation of goods over long distances. Tomytec co ltd series 115 300 4car suburban commuter trainonly set standard dc tomix addon set a japanese national railways jrjnr shonan scheme, green, orange. A railway electrification system supplies electric power to railway trains and trams without an onboard prime mover or local fuel supply. Distribution of the traction return current in at electric. Countries having great natural resources in the form of water power were quick to appreciate the advantages of electric traction. Electric traction on indian railways indian railway employee. Powerelectronics issues of modern electric railway systems.
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. A traction motor is used to make rotation torque on a machine. Railway and electric traction history is closely linked with the electrotechnic development rhythms, in particular transformers, motors and semiconductors. Two different solutions will be presented to reach that goal. The traction power supply system tps is the railway electrical distribution network used to provide energy to highspeed electric trains, which comprises three. Analysis of the electric locomotives neutralsection passing. The principles of mechanical and electrical railway traction, andrews, h.
They are also used in electric vehicles, such as electric milk. A book for students, electrical and mechanical engineers, superintendents of motive power and others interested. Apart from this, the report also provides the market outlook, growth, share, size, opportunity and forecast during 20192025. Later ir introduced 3000 volt dc and subsequently in 1957 decided to adopt 25 kv ac system of electrification as a standard all over ir. The permissible range of voltages allowed for the standardised voltages is as stated in standards bs en 50163 and iec 60850. The railway system division, in its commitment to future progress, has consistently achieved.
A long tradition in electric railway engineering electrifying history. This book may have occasional imperfections such as missing or blurred pages. Electric traction was introduced on indian railways in year 1925 on 1. Ingeteam is a market leader specializing in electrical engineering and the development of electrical equipment, motors, generators and frequency converters. System such a diesel electric drive, electric drive etc. Modeling and simulation of dc rail traction systems for energy saving.
Pdf modeling and simulation of dc rail traction systems. Italian railways were the first in the world to introduce electric traction for the entire length of a mainline rather than just a short stretch. The motors used in electric traction have a very high starting torque. Powerelectronics issues of modern electric railway systems a. Fashion, politic or strategic choices also influenced notably the evolution of electric traction. The trend of electrical and diesel energy cost in terms of unit charges and rslitre as compiled in the annual statistical statement of indian railways is as follows.
Electric traction by steam railroads for special situations. Scribd is the worlds largest social reading and publishing site. Its primary side is connected with two phases of the threephase power grid. The drive which uses the electric power for moving forward, such type of drive is called an electric traction drive. Introduction of traction system in hindi, electrical. Traction transformers for trains and railway stock transform the overhead contact line voltage, which ranges mainly from 15 kv or 25 kv to voltages suitable for traction converters 0. Electric locomotivestraction trains show categories. English pdf brochure traction systems for light rail vehicles selected. Sep 11, 2016 references electric traction for railway trains. Ppt electric traction system powerpoint presentation.
They are also used in electric vehicles, such as electric. Friends is video me ham electric traction ke bare me discuss kar rhe hai. Parts of electric locomotive transformer the line voltage has to be stepped down before use on the train. Depending on whether a country had rich coal deposits or huge hydropower resources, the reasons to electrify railways would have differed.
A book for students, electrical and mechanical engineers, superintendents of motive power and others interested in the development of electric traction for railway train service electric traction by electric railways for ordinary service. Ppt electric traction system powerpoint presentation free. Economics of electric vs diesel traction on account of fuel cost is evaluated based on the rupees spend towards energy bill for hauling gtkm of load. Electric traction 1701 however, the steam locomotive suffers from the following disadvantages. Traction electric drive for railway application has to provide the adjustment of both rotor speed and. Railway transportation systems for a comfortable future. On electrifications, technologically strong solutions were implemented until ones with. 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. The report has studied some of the influential players in the global railway traction motor market, which are bombardier inc.
Railway electrification as a means of traction emerged at the end of the nineteenth century, although experiments in electric rail have been traced back to the midnineteenth century. Jun 27, 20 electric traction the system which use electrical power for traction system i. Electric railways use either electric locomotives hauling passengers or freight in separate cars or electric multiple units passenger cars with their own motors. Edward parris burch mcgrawhill book company, 1911 railroads 583 pages. Traction transformer is applied to railway as a power supply for electric power train. By electric traction is meant locomotion in which the driving or tractive force is obtained from electric motors. Free from smoke and flue gases hence used for underground and tubular railway.
The system which use electrical power for traction system i. Some electric traction systems provide regenerative braking that turns the trains kinetic energy back. The first part describes electric railways in some detail and has many excellent hand engraved illustrations. Electricity is typically generated in large and relatively efficient generating stations. This particular copy has seen hard times and is clearly deteriorating so i have elected to scan the part on electric railways for preservation and to present it here. Numerous efforts to use traction induction drive instead of obsolete and unserviceable dc motors with 18 step power circuit breakers with power starting resistors were not reliable. Electric traction will continue to play a dominant role in the railway since it is an. Thomas davenport, in brandon, vermont, erected a circular model railroad on which ran batterypowered locomotives or locomotives running on batterypowered rails in 1834. Act of drawing or being drawn is known as traction. This article takes a look at the role that electric motors play in this sector of the transport industry. Or electric traction means a locomotion in which the driving force is obtained from electric motors. Introduction requirements of a traction system control of dc motors electronic speed control methods for dc motors pulse width modulation braking operation in dc motors conclusion references introduction traction motor refers to an electric motor providing the primary rotational torque of a machine, usually for conversion into linear. Optimising power management strategies for railway traction.
1540 1123 353 392 1090 680 1543 335 1138 1171 312 41 1220 526 1539 60 763 307 65 880 1213 577 491 796 916 198 862 682 1134 814 724 640 858 671 121 269 104