Powerelectronics issues of modern electric railway systems a. By electric traction is meant locomotion in which the driving or tractive force is obtained from electric motors. Although experimental electric motors were built more than a century ago electric traction is a modern development. Read pdf railway engine diagram railway engine diagram how a diesel electric locomotive works. A book for students, electrical and mechanical engineers, superintendents of motive power and others. Transfer of power from stationary equipment to running locomotive is either through.
Railway traction power transmission hvigbt modules are used for railway traction inverters and power transmission. Pdf electrification traction and signalling compatibility. 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 elec. Its primary side is connected with two phases of the threephase power grid. Adhesion traction is the friction between the drive wheels and the steel rail.
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. Depending on whether a country had rich coal deposits or huge hydropower resources, the reasons to electrify railways would have differed. Electric traction current, car, railway, motor, motors. Electric traction rail transport alternating current. The accuracy of the designed method and comparison of the simulated results with the prototype data have. Traction motors are used in electrically powered rail vehicles such as electric multiple units and electric locomotives. Traction motors in diesel locomotives ee publishers. An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or. Abbs railway portfolio covers the whole range of both ac and dc systems for. Our works cover both network rail and tfl controlled areas. Electric traction railways free download as powerpoint presentation. Electric traction was introduced on indian railways in year 1925 on1.
Sep 29, 2009 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. What is an electric locomotive systems and their types in india. The electric locomotive and electric motor coach may be regarded as natural developments that have followed steam traction. A railway electrification system is the infrastructure that allow electric traction to operate. Electric traction on indian railways indian railway employee.
Electric traction is an environmental friendly, pollutionfree and energy efficient alternative to fossil fuels. Railway electric traction is about the traction units that operate on a railway electrification system. 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. In many parts of the world, diesel electric locomotives are the primary hauling power for trains. Traction motors are used in electrically powered rail vehicles electric multiple. Application recommendation light rail english english pdf application note. Railway technology today 3 edited by kanji wako railway electric power feeding systems. Download it once and read it on your kindle device, pc, phones or tablets. Jun 18, 20 the year 1881 saw the birth of the first electric railway run by a germanengineer werner van siemens using both the rails to carry the current. What is an electric locomotive systems and their types in. Imho, they are quite different, and both merit separate articles. The drive which uses the electric power for moving forward, such type of drive is called an electric traction drive. The year 1881 saw the birth of the first electric railway run by a germanengineer werner van siemens using both the rails to carry the current. Ppt electric traction system powerpoint presentation.
Energy saving technologies in the railway vehicle traction field can be mainly. This article takes a look at the role that electric motors play in this sector of the transport industry. Introduction of traction system in hindi, electrical. Thomas davenport, in brandon, vermont, erected a circular model railroad on which ran batterypowered locomotives or locomotives running on batterypowered rails in 1834. A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric or hydrogen vehicles, elevators or electric multiple unit. Traction transformer is applied to railway as a power supply for electric power train. The principles of mechanical and electrical railway traction, volume 5. A free powerpoint ppt presentation displayed as a flash slide show on id.
Electric traction by steam railroads for special situations. In an electric traction system the driving force to pull a train is generated by the traction motors. Rail transport is coming back into favour for the transportation of goods over long distances. Electric traction 1701 however, the steam locomotive suffers from the following disadvantages. Friends is video me ham electric traction ke bare me discuss kar rhe hai. Special transformers railway transformers 5 ac traction feeder transformers application ac traction feeder transformers are used between normal threephase ac networks and singlephase catenary systems. However, electric railways did not appear until 1890 at. Electric traction mcqs answers pdf electrical engineering. A fully electrified railway has no need to switch between methods of traction thereby making operations more efficient. Railway electrical engineering association of japan, vol. 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.
Railway technology today 3 edited by kanji wako railway. Electric traction mcqs answers pdf electrical engineering multiple choice questions answers. If you continue browsing the site, you agree to the use of cookies on this website. Dc traction motors 4 mfo experimental locomotive no. Hence, it is possible to achieve higher acceleration of 1. System such a diesel electric drive, electric drive etc. Railway and electric traction history is closely linked with the electrotechnic development rhythms, in particular transformers, motors and semiconductors. Single and double voltage systems are used as in autotransformer and booster transformer applications. Optimization of target speeds of highspeed railway trains for traction energy saving and transport. Thomas davenport, in brandon, vermont, erected a circular model railroad on which ran batterypowered locomotives or locomotives running on batterypowered. Even so, many notable innovations occurred simultaneously yet independently. Electric traction railways electric motor components. The motors used in electric traction have a very high starting torque. To establish this model, detail information on converter design, accurate electrical parameters and control algorithm of traction drive.
Electric traction systems are various electrical systems that are used to drive railways. Railway traction, reliability and safety in railway, xavier perpinya, intechopen, doi. 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. Electrification traction and signalling compatibility.
Railway traction systems free download as powerpoint presentation. Railway traction systems alternating current electric motor. The most important challenge of traction distribution is to supply electric power to running locomotive. Many systems have been evolved over the period based on power handling technologies available at that time and now 25 kv traction power supply is predominantly prevailing over indian railways.
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 means drawing or pulling something over a surface. An adhesion railway relies on adhesion traction to move the train. The system which use electrical power for traction system i. Simulation models have been proposed for the calculation of the induction motor dynamic characteristics. Powerelectronics issues of modern electric railway systems. The little electric models constructed by early inventors have developed into the electric expresses and giant electric freight engines, in use throughout the world at the present time.
E consulting engineer, professor of electric railway engineering. The first part describes electric railways in some detail and has many excellent hand engraved illustrations. Two countries that approach this ideal are switzerland and hong kong, but both use more than one system, so unless multisystem locomotives or other rolling stock is used, a switch of traction method may still be required. This book may have occasional imperfections such as missing or blurred pages. Advantages of ac traction systems it is possible to use regenerative braking in electric traction system. Scribd is the worlds largest social reading and publishing site. A new modeling method for electric railway vehicle is proposed. This is a reproduction of a book published before 1923. The second part describes structural interior wiring circa 1901. On electrifications, technologically strong solutions were implemented until ones with. Traction motor simple english wikipedia, the free encyclopedia. Pdf the paper states that the railway is a highly integrated system and there can be interactions between many of its components. Finding this a little too dangerous, siemens soon adopted the overheadelectric wires.
Distribution of the traction return current in at electric. Comments on the regional railroad network and power grid interconnection pdf. The 9 most powerful locomotives in the world i know i can. 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. At present 28 per cent of route kilometres on indian railways are electrified. The shift to domestic production of electric equipment for public trams was going forward at the time, but these were simply exact copies. 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. A long tradition in electric railway engineering electrifying history. Electric traction control the railway technical website. 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. Features of mitsubishi electric hvigbt modules for railway traction inverters and power transmission. It is used in electric trains, tramcars, trolley buses and diesel electric vehicles etc. The track electrification refers to the type of source supply system that is used while powering the electric locomotive systems. The term adhesion railway is only used when there is need to distinguish adhesion railways from railways moved by other means, e.
May 06, 20 traction mechanics is the study of train motion. Fashion, politic or strategic choices also influenced notably the evolution of electric traction. Electric traction has many advantages as compared to other nonelectrical systems of traction including steam traction. Ingeteam is a market leader specializing in electrical engineering and the development of electrical equipment, motors, generators and frequency converters. Traction induction drive for railway chuev denis epe 2003 toulouse isbn. A traction motor is used to make rotation torque on a machine. Jun, 20 the most important challenge of traction distribution is to supply electric power to running locomotive.
Railway traction systems alternating current electric. The electric traction system can be broadly divided into two groups. There may be two types of traction classifications on the basis of power supply. A book for students, electrical and mechanical engineers, superintendents of motive power and others by edward parris burch, first published in 1911, is a rare manuscript, the original residing in one of the great libraries of the world. Which of the following is an advantage of electric traction over other methods of traction.
1506 1408 518 348 343 1568 691 631 455 1309 564 428 498 415 1308 165 1339 1355 476 555 876 1366 944 529 509 634 409 1082 1577 97 153 793 1032 450 245 1200 1303 580 964 310