Use features like bookmarks, note taking and highlighting while reading electric traction for railway trains. Scribd is the worlds largest social reading and publishing site. Our drives and traction motors operate all over the world. Dc traction motors 4 mfo experimental locomotive no. Depending on whether a country had rich coal deposits or huge hydropower resources, the reasons to electrify railways would have differed. Railway transportation systems for a comfortable future. Economics of electric vs diesel traction railelectrica. A book for students, electrical and mechanical engineers, superintendents of motive power and others interested. California high speed train project traction power 2x25kv autotransformer electrification system, r2 california highspeed rail authority page 4 1.
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. Railway traction, reliability and safety in railway, xavier perpinya, intechopen, doi. Electric traction substations study of railway seminarrs. Railway traction system research india publications. Why do indian railways use 25 kv ac supply instead of the. Electrification traction and signalling compatibility. Voltage ehv at each traction substation which is owned, installed, operated and maintained by the railways. Imho, they are quite different, and both merit separate articles. Dc, the voltage varies from 600 v dc to 3000 v utilizing either the third rail system of. 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. 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. Indian rail uses only two phases from threephase electric power supply to fed locomotive. Electric traction limited was able to supply 87002, 86101 and 86401 primarily to assist with stock and shunting moves but also to run the service on occasion. Pdf electrification traction and signalling compatibility.
This book is a reproduction of that original, which has been scanned and cleaned by stateoftheart publishing tools. Countries having great natural resources in the form of water power were quick to appreciate the advantages of electric traction. What is an electric locomotive systems and their types in. A long tradition in electric railway engineering electrifying history. Railway engineering traction and train control areris. Most of these leaned towards electrification, especially for hightraffic sections. 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. Arrivals of locomotive at substation are dynamic load. Railway electric traction describes the various types of locomotive and multiple units that are used on electrification systems around the world. Electric traction has many advantages as compared to other nonelectrical systems of traction including steam traction. Traction motors components for traction applications home. In addition to the diesel locomotives used on most zimbabwe trains, there are 30 25kv ac electric units acquired in 19834. Railway traction systems free download as powerpoint presentation.
Download it once and read it on your kindle device, pc, phones or tablets. Traction transformer is applied to railway as a power supply for electric power train. Railway technology today 3 edited by kanji wako railway. Electric traction 1701 however, the steam locomotive suffers from the following disadvantages. Which of the following is an advantage of electric traction over other methods of traction. Railway technology today 3 edited by kanji wako railway electric power feeding systems. 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. Features of mitsubishi electric hvigbt modules for railway traction inverters and power transmission. Electric traction has the distinct characteristics of attracting traffic by b routes and thus very slowly traction system starts getting overloaded. Our team have a strong track record delivering traction power solutions for light and heavy rail network according to client standards. In europe and elsewhere, railway networks are considered part of the national transport infrastructure, just like roads, highways and waterways, so are often financed by the state. Electric traction mcqs answers pdf electrical engineering multiple choice questions answers. Although experimental electric motors were built more than a century ago electric traction is a modern development.
A practical handbook on the application of electricity as a. Railway electrical engineering association of japan, vol. Thomas davenport, in brandon, vermont, erected a circular model railroad on which ran batterypowered locomotives or locomotives running on batterypowered rails in 1834. Energy saving technologies in the railway vehicle traction field can be mainly. Fernando calero and isaac arroyo, schweitzer engineering laboratories, inc. The general objective of this graduate program is to provide students with the intellectual depth, breadth, and appropriate training necessary to pursue productive careers in railway engineering traction and train control. The electrically operated vehicles have to move on guided track only. The rise in oil prices in the mid1970s tilted the argument further in favour of electric traction as electricity generation in most of india is hydroelectric or coalbased. 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. 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. Abbs railway portfolio covers the whole range of both ac and dc systems for.
Its primary side is connected with two phases of the threephase power grid. Electric traction railways electric motor components. System such a diesel electric drive, electric drive etc. Ppt electric traction system powerpoint presentation. More than 90,000 motors are in use in a variety of rail vehicles, from trams to highspeed trains to. The railway system division, in its commitment to future progress, has consistently achieved. With the end of this work in may 2019, all three were put up for sale.
Electric traction by steam railroads for special situations. 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. India took the plunge from dc to ac electric traction in the mid1950s, as mentioned above. Electric traction on indian railways indian railway employee. Power supply installation in electric traction irieen. At present 28 per cent of route kilometres on indian railways are electrified. Railway electric traction is about the traction units that operate on a railway electrification system. Any crossover of content between the two should be avoided. Additional equipment is required for achieving electric braking and control.
Electric traction current, car, railway, motor, motors. An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or. Power electronics technologies for railway traction systems 307 the east japan railway company is developing a nextgeneration rolling stock control system for the experimental series 209 the multipurpose experimental train muetrain. Introduction fixed installations for electric traction ifte romanian railways have been built during 19651991. Due to low current voltage drop will be less so voltage r. 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. Abstract two types of electric distribution systems are al.
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. 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. What is an electric locomotive systems and their types in india. The railway receives 3phase power supply from the supply authority at a single point near the grid substation from where the railway runs its own transmission lines providing its own traction substations. 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. Fashion, politic or strategic choices also influenced notably the evolution of electric traction. A free powerpoint ppt presentation displayed as a flash slide show on id. 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. Abstract two types of electric distribution systems are al common in railway systems. Railway traction systems alternating current rail transport. Electric locomotive in hindi electric traction youtube. This enabled these locomotives to remain mainline certified and available for occasional charters. It is used in electric trains, tramcars, trolley buses and diesel electric vehicles etc.
The trend of electrical and diesel energy cost in terms of unit charges and rslitre as compiled in the annual statistical statement of. Power electronics and electric drives for traction. Some electric traction systems provide regenerative braking that turns the trains kinetic energy back. 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. Pdf the paper states that the railway is a highly integrated system and there can be interactions between many of its components. Single and double voltage systems are used as in autotransformer and booster transformer applications. Sirti has designed, supplied, installed and tested the contact line, the electric substations, the electric substation activation and control system dote direzione operativa trazione elettrica operational electric traction controller and the telecommunications network. Thomas davenport, in brandon, vermont, erected a circular model railroad on which ran batterypowered locomotives or locomotives running on batterypowered. A railway electrification system is the infrastructure that allow electric traction to operate. Ppt electric traction system powerpoint presentation free. Customary units consistent with guidelines prepared by the california department of transportation and defined by the. In an electric traction system the driving force to pull a train is generated by the traction motors. It is an applicationoriented book for the design and development of traction systems accompanied by a description of the core technology.
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. Electric traction railways free download as powerpoint presentation. 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. If you continue browsing the site, you agree to the use of cookies on this website. Electric traction is an environmental friendly, pollutionfree and energy efficient alternative to fossil fuels. The electric traction either uses dc system or ac system. Power electronics technologies for railway traction systems. 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.
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. Comments on the regional railroad network and power grid interconnection pdf. Electric traction mcqs answers pdf electrical engineering. Railway traction power transmission hvigbt modules are used for railway traction inverters and power transmission. Here the reason for transmitting voltage at 25 kv and not normal 240415v or other ht supply are. A railway electrification system supplies electric power to railway trains and trams without an. The shift to domestic production of electric equipment for public trams was going forward at the time, but these were simply exact copies.
Even so, many notable innovations occurred simultaneously yet independently. Railway and electric traction history is closely linked with the electrotechnic development rhythms, in particular transformers, motors and semiconductors. On electrifications, technologically strong solutions were implemented until ones with. However, electric railways did not appear until 1890 at. 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.
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