Results of the experiments are presented and discussed. A railway overhead line also called catenary, as shown in fig. Pantograph condition monitoring system australian rail. Pantograph dynamics and control of tilting train ren luo, jing zeng, weihua zhang traction power state key laboratory, southwest jiaotong university, chengdu 610031, p r china tel. Pantograph arcings impact on locomotive equipments request pdf. There is presented a contructive solution for the active control of the pressure force of the crosshead slipper over the contact line. Use features like bookmarks, note taking and highlighting while reading pantograph and contact line system high speed railway. The aim is to assess the overall pantograph sway in crosswinds based on the relative movements of the pantograph and contact wire, taking into account the crosswind deflection of the train body. The principal components of a pantograph are a main frame, an arm, a pantograph head and a drive. Introduction uplift of the contact wire in catenaries caused by a pantograph is a well known safe critical.
A regulated compressed air supply generates the necessary power inside the bellows cylinder, and is adjusted as required. Download it once and read it on your kindle device, pc, phones or tablets. Apr 23, 20 a pantograph is a mechanical linkage connected in a manner based on parallelograms so that the movement of one pen, in tracing an image, produces identical movements in a second pen. The dynamic pantograph project was kickstarted by a 2011 collaborative fund grant from the engineering and physical sciences research council, though the concept goes back much further a paper called developments towards an active pantograph was delivered at the institution of electrical engineers by david hartland, a senior project. Kelvin lam analysis on pantographs pantograph and traction control introduction to electric tractions summer 2015 19102015 1 2. High speed electric train catenarypantograph question. Brochure transit systems pdf schunk carbon technology.
If a line drawing is traced by the first point, an identical, enlarged, or miniaturized copy will be drawn by a pen fixed to the other. Pantograph and contact line system comprehensively introduces pantographs, contact lines and their interactions in many areas including geometrics, dynamics, materials, and electricshelpful to understanding the basic theories of interaction between pantographs and contact lines. Pantographtransportation systems productstransportation. The pantograph shoe has an insert of a carbon paste strip which actually contacts the wire.
An experimental test setup is designed and implemented to be used in this work. Evolution of the electrical contact of dynamic pantograph. A pantograph or pan, or panto is an apparatus mounted on the roof of an electric train, tram. Pantographs come in all shapes and sizes depending on the speed of the locomotive or train set, power requirements, power supply systems etc. A study on the measurement of contact force of pantograph. And this requires preventive service and maintenance work. A study on the measurement of contact force of pantograph on. Examples of detected defect pantographs will be given. For instance, the prr and its successors generally preferred to run locomotives with the rearmost pantograph up obviously, thi. The pantograph is located on the roof of the train and collects the electricity needed to power the train.
This is totally dependent upon the policies of the railroad, and could vary between specific pieces of equipment. The pantographs are also of light weight and the spring tension that keeps them raised provides for a light pressure against the overhead wire. Optimization of highspeed railway pantographs for improving. Characteristics of the sliding electric contact of pantograph. Pantograph is the one of the core systems developed by domestic technology. For the positivefed overhead traction system, where pantograph is cathode, the supply. Abstract for washing of carpets, scrapping is done using a wooden plank. Active control of contact force for highspeed railway. Analysis on pantographs pantograph and traction control 19102015 3 4. Pantograph and contact line system highspeed railway, wu. Proceedings of the 17th world congress the international federation of automatic control seoul, korea, july 611, 2008 pantograph dynamics and control of tilting train ren luo, jing zeng, weihua zhang traction power state key laboratory, southwest jiaotong university, chengdu 610031, p r china tel. Centre pedestal assembley, push rod assembley, steady tube assembly, middle articulation assembly, upper articulation assembly, bow assembly, motor mechanism assembly. When the locomotive is to be started the pantograph is pushed up with the help of air pressure, which is delievered by a small compressor delievring air at pressure of 7kgcm2wh.
With dc traction power supply, ieee transactions on power delivery, vol. C urrent c ollection using pantogra p h s y stems 4 the electricity required to power the elec ric traction motors is collected by means t of a pantograph running. With the pantograph test bench static and dynamic examinations to the pantograph and. With the speed up of trains, the arcing becomes particularly serious for the. Norgren pneumatic pantograph control systems for trams, urban and high speed trains are designed to raise and lower the pantograph, ensure constant contact, work at high and low temperatures with optional auto drop down and overreach control functions. The arcing between the pantograph and the contact wire is a common phenomenon and. Highperformance pantograph testing how new pantograph testing systems can simulate operational dynamics more precisely the point where the pantograph of an electric train makes contact with the trolley wire creates one of the most complex and challenging environments for rail component manufacturers and. The vehicle is equipped with a state oftheart threephase drive with asynchronous motor types. Internal or external factors affect the dynamic behavior of the system and lead to parameter variations. Mandal2 1department of mechanical engineering, 2center for rural development and technology, iit delhi, hauz khas, new delhi. A pantograph is a system of articulated arms fixed on the roof of the locomotive. Roofmounted pantographs panto roofmounted pantographs for tram lines, metropolitan railways, metros, traction units electrical multiple units emus, trains and locomotives as well as potential specialpurpose vehicles are developed for various overhead line systems and speeds, whereby a raising to and.
They are perfectly suited for single traction, double traction or multitraction. Arc characteristics, formation methods, extinction and reignition of the arc are studied. It is used in electric trains, tramcars, trolley buses and diesel electric vehicles etc. Battery electric buses are charged at charging stations. Typically, a single or double wire is used, with the return current. The mts pantograph test system features multiple test. Ricardo pantograph monitoring system approved by network rail for rollout ricardo rails panmon system accepted for roll out across the uk national rail network product approval based on a successful two year inservice trial at cheddington on the west coast main line. The current collector, or pantograph, is a strategic but vulnerable part of. The number of line tests can be reduced significantly. Pantograph and catenary system with double pantographs for highspeed trains at 350 kmh or higher article pdf available in journal of modern transportation 191 march 20 with 5 reads. Typically, a single or double wire is used, with the return current running through the rails.
Pantograph of marklin electric locomotive with onboard camera. Abstract the static crosswind displacements of a high speed pantograph and contact wire are studied. A complete inspection of each of its parts is needed to perform data. Arcing at the pantograph distorts the regular waveform of the supply voltage and current and generates transients which propagate along the railway system, including tracks, track circuits, other locomotives on the same track, substation supply transformer, vehicle transformer, etc. A modified pantograph is used to collect the electric power at the top of an electric locomotive. A good contact between the pantograph and catenary is critically important for the working reliability of electric trains, while the basic understanding on the electrical contact evolution during the pantographcatenary system working is still ambiguous so far. Analysis of the pantograph arcing on the railway vehicle. Previous studies of pantographcatenary systems mainly focused on their mathematical modelling and experimental verifications. Pantograph should follow the catenary without separation for continuous current collection. A pantograph engraving machine, or pantograph engraver, is a pantograph which uses a cutting tool at one position on the pantograph s mechanism to engrave cut into a workpiece a design traced out by a tracer or stylus at another position on the mechanism.
Acuitys ultracompact laser rangefinders can be used to register the distance at very high speeds to the top of the train and the pantograph. Here well make one that enlarges the original by 2. Pantograph arcing is a common phenomenon when the pantograph head and contact wire have sliding electrical contact. Pantograph arcings impact on locomotive equipments. This provides actual contact to draw the current and also acts as a lubricant think graphite. Many factors and parameters can affect the interaction between the pantograph and the catenary. Its role is to transfer power from the contact line to the electric traction unit.
If a line drawing is traced by the first point, an identical, enlarged, or miniaturized. The system is employed to make contact with an electrified overhead wire cable. Pantograph parameters measurement and inspection systems. Basic knowledge of emu an emu consists of 4 or 5 units. Pantograph, inversion of four bar chain, straight line mechanism. Electric traction docsanjeet8143 linkedin slideshare. Electric traction has many advantages as compared to other non electrical systems of traction including steam traction. On the rail, our pantographs, grounding contacts, carbon. Pantograph and contact line system highspeed railway. The first generation consists of those equipped with stepwise power regula tion and with comutator dc traction mo tors. A traction system that doesnt use electrical energy for the movement of vehicle at any stage is referred as non electric traction system. May 16, 2009 onboard camera captures motion of pantograph of marklin ho electric locomotive. A pantograph is a mechanical linkage connected in a manner based on parallelograms so that the movement of one pen, in tracing an image, produces identical movements in a second pen.
A pantograph is a device for collecting an electrical current to power an electric locomotive or electric multiple unit. May 24, 2015 the beauty of pantograph lies in its design i. Pdf pantograph arcing in electrified railwaysmechanism. So there are 12 and 15 coaches emu running in mumbai. A pantograph in nonstandard conditions might adversely affects the contact line or that requires a specific maintenance activities. This information helps proper focus and triggering of high speed. The pantograph condition monitoring system pcms provides automated analysis and reports on the condition of pantograph heads on electrified rolling stock passing through a monitoring site.
As well known, pantographcatenary systems are widely used in modern electrified railway industries. A pantograph engraving machine, or pantograph engraver, is a pantograph which uses a cutting tool at one position on the pantographs mechanism to engrave cut into a workpiece a design traced out by a tracer or stylus at another position on the mechanism. Pantograph, inversion of four bar chain, straight line. With a more accurate and detailed understanding of the pantographs response in the operating environment, product designers will gain the insight they need to develop more efficient, reliable, highperformance pantographs. Pantograph is an apparatus which mounted on the roof of electric train to collect power through with an overhead tension wire. The electricity required to power the elec tric traction motors is collected by means of a pantograph running on a catenary. Buy ho gauge model railway pantographs and get the best deals at the lowest prices on ebay. It is more predominant at high speed, increasing load, and in cold icy weather conditions such as those that can be found in scandinavia. The pantograph of electric power car collects current from the catenary system and supplies electric power to the transformer and the main traction system. In order to prevent any problems with the pantograph and to enhance the operation of the train system, the use of a laser distance sensor is ideal for pantograph inspections. The present paper describes a prototype of an automatic uplift measurement system capable for pantograph diagnostic.
Automated analysis from this system allows for the prevention of overhead wiring tear down incidents that are a result of damaged pantograph heads and. Railway technology systems index 001 002 company stemmanntechnik 003 worldwide presence railway products, quality made in germany 004 metro and suburban systems third rail shoegears 005 systems for third rail shoegears 006 components for third rail shoegears 007 008 suburban railway roofmounted pantographs for suburban railway. It is used for the reproduction of maps and plans on enlarged or reduced scale. How can a pantograph in electric trains move up and down.
Typically a single wire is used with the return current running through the track. Roofmounted pantographs panto roofmounted pantographs for tram lines, metropolitan railways, metros, traction units electrical multiple units emus, trains and locomotives as well as potential specialpurpose vehicles are developed for various overhead line systems and speeds, whereby a raising to and lowering from the overhead line is carried out by an electric or pneumatic drive. A new test bench for examinations of the pantographcatenary. A pantograph or pan, or panto is an apparatus mounted on the roof of an electric train, tram or electric bus to collect power through contact with an overhead line. A new test bench for examinations of the pantograph. Onboard camera captures motion of pantograph of marklin ho electric locomotive. Current collection mersen power transfer technologies pdf.
Automatic pantograph measurement system wabtec corporation. Overall dimensions 12 configuration, least extended, without router. The book examines application techniques for system design, construction and maintenance, and. Dosto es video me bataya gya hai ki electric locomotive k rear pantograph ko ki generally kyo use kiya jata ke kya reason haijanane k liye video ko. Models identification, optimisation, multibody dynamics, pantographcatenary interaction, railway dynamics 1 introduction the electrical highspeed trains are powered through the contact established between the pantograph and the catenary, in which the pantograph is a mechanical system that follows the catenary with the objective.
Abdessalem bouferrouk, mark sterling and chris j baker 5 ac u s n s n x n f u f f 2 2 2 4. The traction system can be classified as non electric and electric traction systems. Mar 18, 2018 dosto es video me bataya gya hai ki electric locomotive k rear pantograph ko ki generally kyo use kiya jata ke kya reason haijanane k liye video ko. Pdf pantograph arcing in electrified railwaysmechanism and. The modeling methodology of tilting train is studied. Since pantographs make direct contact with the overhead power lines in order to obtain electricity, their usage environment is always changing due to the speed of the train and external weather conditions. It is worthwhile to mention the coupled pantographcatenary model based on the finite element method and multibody dynamics constructed by ambrosio et al. Wabtec corporation 30 isabella street pittsburgh, pa 15212 usa phone. Great savings free delivery collection on many items. Because of their effectiveness at translating motion in a controlled fashion. Electric locomotive pantograph view specifications. In this paper, the evolution of electric contact was studied in respects of the contact resistance, temperature. The steam engine drive is the best example of a non electric traction system and it is the. Models identification, optimisation, multibody dynamics, pantograph catenary interaction, railway dynamics 1 introduction the electrical highspeed trains are powered through the contact established between the pantograph and the catenary, in which the pantograph is a mechanical system that follows the catenary with the objective.
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