Electric and magnetic fields under contact lines and in proximity of the traction power installations. Aug 31, 20 25 kv single phase is the most preferred and universally accepted voltage standard for overhead traction system. Eos entrepreneurial operating system for businesses, home of. Mitsubishi electric to supply additional traction systems for nederlandse. Electric traction is meant for locomotion in which the driving tractiveforce is obtained from electric motors called as traction motors.
Some electric traction systems provide regenerative braking that turns the trains kinetic energy back into electricity and returns it to the. A key advantage of the system is that there are no restrictions on where it has to be deployed so it can be installed virtually anywhere. Alloy bearings,traction motor bearing manufacture and refurbishment for rail. Electric traction systems are various electrical systems that are used to drive railways. 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. Introduction the process of moving any vehicle is called traction.
Countries having great natural resources in the form of water power were quick to appreciate the advantages of electric traction. Electric traction download ebook pdf, epub, tuebl, mobi. There may be two types of traction classifications on the basis of power supply. 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. May 22, 2018 download electric traction systems seminar report with ppt. Electric traction means using the electric power for traction system i. Electric traction systems may be broadly categorized as those operating on. Supply of the 2x25 kv system from the 1x25 kv system. Electric traction supply system on indian railways,ask latest information,abstract,report,presentation pdf,doc,ppt, electric traction supply system on indian railways technology discussion, electric traction supply system on indian railways paper presentation details.
The steam engine drive is the best example of a non electric traction system and it is the first locomotive system used before the invention of actual electric traction systems. An approach for balancing the power supply is given by the use of facts technology and. Kosarev2 summary th e article is devoted to the development of a new method of calculating the instantaneous traction power supply circuits. Railway electric traction power supply system protection 2. Mar 02, 2015 electric trains are those trains which use electric traction or in general electric power. System such a diesel electric drive, electric drive etc. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. A section on photometric measurements is added along with study of halogen lamps and energy saving lamps. However, the electric traction system introduces unbalance in the system which affects the critical loads. Pdf a novel hybrid traction power supply system htpss integrating pv and reversible converter rc is proposed. A novel electric traction power supply system using hybrid parallel power quality compensator by keng weng lao master of science in electrical and electronics engineering. Its based on realworld experience, practical wisdom and timeless truths. Get a grip on your business traction by gino wickman.
Electric traction motors segment to register moderate growth but retain dominant. Application of electric spring in traction train auxiliary. An electric locomotive can be supplied with power from. A railway electrification system supplies electric power to railway trains and trams without an. This system uses 3 phase induction motor, 3 phase supply, 5060 hz supply.
Ac motor traction schematic of single phase ac supply powering 3phase ac. A traction system that doesnt use electrical energy for the movement of vehicle at any stage is referred as non electric traction system. Traction means drawing or pulling something over a surface. With direct current, the most popular line voltages for overhead wire supply systems have been 1,500 and 3,000. A hybrid railway power conditioner for traction power supply system ningyi dai, kengweng lao, manchung wong electrical and computer engineering department university of macau macau, p. Heavy initial expenditure in laying out overhead electric supply system. The most important challenge of traction distribution is to supply electric power to running locomotive. Interruption of traffic for hours owing to short time power failure. Power supply installation in electric traction irieen. Traction force, besides the speed, also depends on the excitation current, i. A free powerpoint ppt presentation displayed as a flash slide show on id. These blinks explain how a valuable tool called the entrepreneurial operating system eos works and how you can use it to build your business. Simulation of railway power supply comprail 2008 simulation of railway power supply systems why. Thomas davenport, in brandon, vermont, erected a circular model railroad on which ran batterypowered locomotives or locomotives running on batterypowered rails in 1834.
Ac electrified railway traction power supply system 4th. 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. The drive which uses the electric power for moving forward, such type of drive is called an electric traction drive. Traction power electrification system investigation report washington metropolitan area transit authority. Railway technology today 3 edited by kanji wako railway. Gino,power resistors, braking resistors, damping resistors and earthing. These systems of tractions may be classified broadly into groups namely. The permissible range of voltages allowed for the standardised voltages is as stated in standards bs en 50163 and iec 60850. Speed time, distance time and simplified speedtime curves, attractive effort for acceleration and. Proposed hybrid traction power supply scheme at present, the traction power supply equipment installed in the traction substation is a typical 24pulse recti. Lets look at laser printer service and supply company, image one. This book is not another silver bullet management book or flavorofthe month strategy. On the basis of type, the market for electric traction systems has been segmented in the report into electric traction transformer, electric traction motor, electric traction generator, electric traction inverter, electric traction converters, and others. Its a very important topic for various recruitment exams like state electricity board exams etc.
Ppt electric traction system powerpoint presentation. Normally, the trains of a umts requires a dc power supply by means of rectifier acdc substations, know as traction substations ts. Federal transit administration december 9, 2016 8 new insulators that can be removed for cleaning and then reinstalled. Electric railways, as an environmentally friendly and efficient. For traction purposes mostly 3phase induction motors and d.
Electric traction multiple choice questions mcq and. The most vital factor against electric traction is the initial high cost of laying out overhead electric supply system. Impact of contact line systems on interference and danger voltages in telecommunication, signal and control circuits and equipment. Ac voltage is converted into dc voltage by using a rectifier. The single phase 50 hz power for the electric traction is obtained from 220211066 kv extra high voltage 3phase grid system through step down single phase transformers. The seminar report explains the electric traction system which is the most efficient of all other traction systems. Friends is video me ham electric traction ke bare me discuss kar rhe hai. System of electric traction mechanics of train movement. Here power is applied to the vehicle from an overhead wire suspended above the track. The locomotion in which the driving force is obtained from electric motor is called the electric traction system.
In an electric traction system the driving force to pull a train is generated by the traction motors. Camlin rail,smart grid power supply and fault management systems. Non electric traction system mechanical traction system. The system which use electrical power for traction system i. Voltage fluctuation of auxiliary power supply system is a nonnegligible factor threatening the safe operation of traction trains. The electrical load flows and the energy consumption within railway power supply networks depend on the running trains and the power supply system characteristics. A hybrid railway power conditioner for traction power. College of electrical engineering, southwest jiaotong university, chengdu, china abstract the proliferation of the new highspeed train has resulted in signi. The nonlinear and dynamic natures of the modern trains.
If electric supply is used for driving a locomotive, the system is known as electric traction. There are various system of electric traction existing such as electric train, trolley buses, diesel electric vehicles and gas turbine electric vehicles. The guidance is taken from the output of strings geno. The energy consumption of electrical railways is mainly influenced by the driving states and the propulsion efficiency characteristics of the trains as well as by the behaviour of the traction power supply system. Application of a highpower reversible converter in a. Mitsubishi electric to supply additional traction systems for. Unilateral power supply system has been used because of the management status of the power grid system, while, bilat. Electric traction completed course by nikhil nakka youtube.
Unless the traffic to be handled is heavy, electric traction becomes uneconomical. The electric traction system ppt briefly discusses the types, supply system, traction motors, braking system, advantages and disadvantages and recent trends. A railway electrification system supplies electric power to railway trains and trams without an onboard prime mover or local fuel supply. Internal power supply distribution system iii energy efficient systems 4. Sep 11, 2016 introduction the process of moving any vehicle is called traction. Main types there are mainly two types of electric trains, which are described as below a. Research on voltage losses of at traction power supply system. Traction get a grip on your business by gino wickman book report by gary tomlinson introduction. May 22, 2016 electric traction means using the electric power for traction system i. Traction system which do not involve the use of electricity such as steam engine drive, ic engine drive. Dec 26, 2018 open library is an initiative of the internet archive, a 501c3 nonprofit, building a digital library of internet sites and other cultural artifacts in digital form.
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. An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or. If the electric energy is use in this process is called electric traction. Act of drawing or being drawn is known as traction. In this way, ac grid current harmonics and dc voltage ripple can be reduced, and the system redundancy can be increased. This site is like a library, use search box in the widget to get ebook that you want. Electric traction the system which use electrical power for traction system i. Calculation of the traction power supply systems using the.
The same was true with manhattans former streetcar system. In three phase system we can transmit high voltage level which is for efficient transmission is required. The traction power supply system tps is the railway electrical distribution. To fulfill that passion, wickman created the entrepreneurial operating system eos, a holistic system that, when implemented in an organization, helps leaders run better businesses, get better control, have better life balance, and gain more traction. Electric traction system requirements, terms, advantages. For this reason the idea was to create a plugin simulation module for railway power supply networks using the advanta. Interference with communication lines running along the track. Types of traction systems electrictraction systems can be broadly divided into those using alternating current and those using direct current. At each traction substation, normally two single phase transformers are installed, one which is in service and the other is 100% stand by. Jul 31, 2014 1 what are the requirements of an ideal electric traction system. A novel power flow algorithm for traction power supply systems. This paper based on electric spring theory aims to stabilize the voltage of the critical load in traction train auxiliary power supply system. Committee meeting royal meteorological society spring 2009 pdf.
A traction system that doesnt use electrical energy for the movement of vehicle at any stage is referred as nonelectric traction system. New generation traction power supply system and its key technologies for electrified railways article in journal of modern transportation 231. Newer electric locomotives use ac motorinverter drive systems that provide for. Comments on the regional railroad network and power grid interconnection pdf. Electric traction system engineering seminar topics. Railway traction system research india publications. In ohe, or overhead electrification systems, the supply of electricity is through an overhead system of suspended cables known as. Economic criterions and conditions for railway electrification. Direct current dc traction units use direct current drawn from a third rail, fourth rail, groundlevel power supply or an overhead line. Electric railways use either electric locomotives hauling passengers or freight in separate cars or electric multiple units passenger cars with their own motors. All alternating current ac traction units draw alternating current from an overhead line. Pdf induced voltage calculation in electric traction systems. The chapter on economics of electric power supply and utilisation is revised in this edition. Auxiliary power supply system is an important component of traction trains.
Pdf in modern electric traction systems, the calculation of induced voltage on. New generation traction power supply system and its key. The evidence of this mode of running can still be seen on the track down the slope on the. Looking for any other voltage system, means every things has got to be developed namely traction power supply system, over head equipment, vehicle traction system etc.
The voltage situation as well as the network structure influence the. This chapter presents a general description of the elements that characterize a railway electric transportation systems. What is an electric locomotive systems and their types in india. The locomotive should be selfcontained and able to run on any route braking should be such that minimum wear is caused on the brake shoes if possible the braking energy should be regenerated and returned to the supply. The chapter on electric drives and traction covers recent trends in electric traction using gto thyristors technology. Download electric traction systems seminar report with ppt. Calculation of the traction power supply systems using the functions of resistance d. One of the major application of an electric drive is to transport men and materials from one place to another.
Ac electrified railway traction power supply system 4th edition combined with chinas specific conditions and practical experience. It involves utilization of electric power for traction systems i. In general following electric traction systems exist. Electric traction systems market size share growth outlook 2025. Energy storage for traction power supply systems 30 circuit configuration fig. The electric traction system can be broadly divided into two groups. Following in the paper are presented, in chronological order, some electric power supply systems of the railway traction, 1, 2, and 3. A novel electric traction power supply system using hybrid. Introduction of traction system in hindi, electrical.
Railway electric traction power supply system protection 2chinese edition. Electric traction in comparison to other traction systems has the drawbacks of. Power failure for few minutes can cause traffic dislocation for hours. Now a day, magnetic traction is also used for bullet trains. The phase i of california highspeed train project chstp to be implemented between san francisco and anaheim will be a 520 routemiles long stateoftheart rail system providing intercity travel with modern highspeed trains running at speeds up to 220 miles per hour. Apr 15, 2019 course is helpful for various competitive exams like engineering entrance, pgecet, psu recruitments, ecet, leet etc.
Dependence of traction force, braking force and power factor on the speed 3 results of measurement the results of measurements in electric traction power supply ets plase are presented and analysed subsequently. Railway electric traction power supply system protection 2chinese edition tan xiu bing on. Hybrid electric vehicles hevs, in which two or more power systems are combined, can meet these objectives through the capture and reuse of. In this paper, the cause of unbalance due to traction system is investigated along with its effects on critical load. Optimising power management strategies for railway traction. Traction is your guide to running a robust, thriving business. Traction power electrification system investigation wmata. Electric traction is part of subject utilization of electrical energy.
With the company having already received an order to supply electrical equipment for 118 of the new train units in. Transfer of power from stationary equipment to running locomotive is either through. Aspects about supply systems in railway electric traction. The track electrification refers to the type of source supply system that is used while powering the electric locomotive systems. Research on voltage losses of at traction power supply. Ppt electric traction system powerpoint presentation free. Traction power 2x25kv autotransformer electrification system, r2. Power system modelling for urban massive transportation. Over time various electrical power supply systems were used in railway traction system. Click download or read online button to get electric traction book now. The california highspeed rail chsr line will be an electrified line with traction power for electric vehicles being supplied and distributed using a 2x25kv autotransformer feed type power supply system and an overhead contact. 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. Pdf a novel hybrid dc traction power supply system.
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