With stateoftheart it systems and inhouse developed software tools we can simulate and analyze this in advance. In order to ensure safety, certain minimum clearances shall be maintained between various circuits of an overhead distribution system. The sliding contact between these two flexible structures is the main difficulty in the modelling of the pantograph catenary dynamics. Intended to be mounted on a roll up type door channel, the 4110 will not allow the alarm system to arm unless the bolt or latch, which serves as a shunt between the reed switch and magnet, is in a locked position. Other existing international standards, codes, best practices and guidelines applicable for the overhead contact system. The system is inherently safe because the overhead connectors are only energized when they are engaged, and the electromagnetic fields associated with inductive charging concepts are avoided. The success of an overhead contact line system is crucially dependent on its mechanical interaction with the pantograph. This appendix contains preliminary maps of the outer edge of the overhead contact system ocs, the outer edge of the electrical safety zone esz, and associated tree effects. The design of overhead contact systems for the shortdistance traffic requires a great number of factors. Overhead contact line monitoring and prediction of contact. Fundamentals of traction power systems and overhead. Second, the arrangement of the overhead support system, besides being economic, should be as aesthetically pleasing as possible, considering the sensitivity of the typical urban environment. Overhead contact system deicing system blue wire eliminate costly interruptions of revenue service due to the effect of cold and icefrost accumulation on the tramlinetrolley contact wire.
Unlike conventional ocl monitoring systems, which detect contact wire positions using either laser sensors or line cameras, the developed system measures. Pdf overhead catenary system vinod karvande academia. Detection of overhead contact lines with a 2ddigitalbeamforming radar system for automatic guidance of trolley trucks. Overhead contact system how is overhead contact system. An overhead contact system using an untensioned contact wire relying on continuous support, such as proprietary aluminum extrusions or tbars or barn hangers at close spacing to supply the necessary rigidity. Aalborg high class transit system overhead catenary system preliminary description 10 structure protection against accidental contact with traction current 23 11 installation to be protected 24 12 particularity of the ocs at cmc 25 12. The contractor shall support these tests and maintain the overhead contact system. Identify the major components of a typical overhead distribution system. Use on vertical or overhead surfaces for repairs from 1. Table 1 world electric railway feeding systems and electrified distances. Pdf detection of overhead contact lines with a 2ddigital. Appendix j contact systemelectrical safety zonetree. Htetco catenary wire used in overhead catenary systems. Scada, pilot wires or a relaying system must send information to a central point to insure power is being supplied to the system when necessary.
Gri 4110 series commercial overhead door surface mount. For further information, do not hesitate to contact our experts. Conversion of overhead contact systems poles to pantographs luigi di michele, c. In urban areas where overhead lines may not be practical or desirable. If youre looking for a stylish garage door that is a statement of your good taste, we have customized solutions that fit your familys lifestyle.
Various references to manchester to sheffield via wath should read manchester to sheffiield and wath route the lines split at penistone. Design guide for overhead distribution systems eep. Define the overhead contact system interface requirements in order to ensure that they will be adequately taken into account in the design, procurement, construction and testing processes. The current design practices for highspeed overhead contact system presently in operation throughout. Pdf new monitoring technologies for overhead contact line at. Conversion of overhead contact systems poles to pantographs. Contact lines rail electrification home siemens mobility. Proper clearances from jointuse utilities, railroads. This project was a component of the routes 101102 trolley modernization project. The course provides a high level of insight and knowledge to overhead line design, covering all aspects of the latest technologies involved electrical, mechanical, structural and civil. Or if its the safety and security of an integrated, commercial door and operator system that your workplace needs, overhead door products make operating your facility safer and easier. Read track design handbook for light rail transit, second. Ice on the contact wire causes tramlines and light rails to lose power and in extreme cases leads to the contact wire catenary system being brought down. The scansnap sv600 contactless scanner provides a new perspective on document scanning.
The overhead conductor rail can be directly combined with the contact. This course introduces many of the fundamentals of rail traction power and overhead contact systems. By application filed on april 18, 2002, hawaii electric light company, inc. A central location will be needed to supervise the power system. Distinguish between primary and secondary distribution systems. October 2, 2017 30 d od d c d s phase conductor i nsulation j ack et. Easily scan newspapers, magazines, documents or books directly without cutting or damaging them. Ole, overhead contact system, overhead line electrification for. Some of these values are rarely used in public distribution networks but are common in private networks in large industrial sites eg 3. Design guide for overhead distribution systems photo credit.
He has nearly 20 years of experience in teaching and researching on basic theory of pantograph and contact line system, and has participated in the projects of design, construction and maintenance of chinese overhead contact line system. Operational and safety considerations for light rail dc. Design of overhead contact systems gawire, a software package. The overhead conductor rail can be directly combined with the contact wire, meaning that it can be integrated into existing overhead contact line systems. Faults will occur when the conductor comes into contact with the ground, vegetation, animals, or people. The ocs designer shall provide final design services for the overhead contact system that shall include, but not be limited to. New monitoring technologies for overhead contact line at 400. When the amount of overhead a bsorbed is more than the a mount of overhead incurred, it is known as overabsorption. Overhead contact system ocs overhead equipment ohe overhead line equipment ole or ohle overhead lines ohl overhead wiring ohw traction wire.
For the overhead contact system ocs designer, these intersections can present some of the most challenging problems in the system. An overhead line or overhead wire is used to transmit electrical energy to trains, trolleybuses or trams. Distribution systems 101 lawrence berkeley national. We have guides that help you design your system to fit your space. Complete the enclosed bid sheet to include the appropriate billing address and estimated footage of the service installation. Our demonstrated technical competency and experienced engineers give tsp projects the capability to undertake any current collection design project. As an expert player in this field and involved in numerous projects every year, dnv gl offers this training course on overhead lines ohl. Maintenance more details on these and other aspects impacting the railway route are given later. Aalborg high class transit system overhead catenary system preliminary description 3 introduction the ocs is used to deliver energy from rectifier substations to the tramway and to insure recovery of the energy during braking phase of the tramways. Identify the major line sections of an overhead distribution system. One of the primary concerns of the overhead section was the compatability of the existing overhead contact system with the new vehicles pantograph current collector. Rigid contact system typically used in maintenance shops and at moveable bridges.
Overhead door products automatically include the unequaled expertise of overhead door distributors. This project includes the replacement of the overhead contact system that provides power to the trolleys on routes 101 and 102. The sicat dms disconnector monitoring system is designed to reliably detect and indicate the position of the switch in overhead contact line systems. Overhead contact system deicing system blue wire eliminate costly interruptions of revenue service due to the effect of cold and icefrost accumulation on the tramlinetrolleycontact wire. Train in operation, contact wire, wear, monitoring, conditionbased maintenance. Overhead line electrification for railways an approachable. Key sensors, monitoring parameters, state detection algorithms, diagnostics approaches. Sto overhead mortar with ci sto overhead mortar with integral corrosion inhibitor is a single component, polymermodified, cementbased mortar for structurally repairing deteriorated concrete. Office of the chief scientist various locations ocs.
This program covers the basic layout of overhead distribution systems. He directed highspeed overhead contact line system vibration tests for highspeed railways such as. Pdf prognostics and health management for overhead. Figure 91 overhead high speed catenary courtesy of ltk, inc. We have a variety of systems that can be custom ordered to fit your needs. Prognostics and health management for an overhead contact. Prediction of contact wire localized wear points keywords.
For this purpose broadly speaking, there are two systems of current collection. Division 16 electrical related csi masterformat 1995. Alan baxter network rail guide to overhead electrification 2787albguneoh000001 february 2015 rev 10 3 of 52 2. These voltage values, which are all line to line values are 66kv, 22kv, 11kv, 6. Pdf datasheet our complete product range includes the following catenary system products disconnect switches and ground switches copper or aluminium cantilevers aluminium, galvanized steel or composite.
If you work in this area or need to understand the concepts related to electricallypowered rail systems, this is the course for you. Examples of overhead cost classi cations include production overhead, selling and distribution overhead, and administration overhead. Line systems and applicable for the overhead contact system for applicability to the chstp. Download the pdf overhead line electrification for railways. California highspeed train project ocs structural requirements, r0. Some of these values are rarely used in public distribution networks but are common in private networks in. An overhead line is designed on the principle of one or more overhead wires or rails, particularly in tunnels situated over rail tracks, raised to a high electrical potential by connection to feeder stations at regular intervals. Scansnap sv600 contactless overhead scanner fujitsu united. Meet the expert is an informal talk series where presenters provide their expertise on a variety of van nessrelated topics, from construction to muni service to history. Six of the most commonly used voltages have been selected for european and international standardisation. Although small variations to sag and tension do not adversely affect current collection, also called commutation, large variations, say over 6 inches. Rigid catenary or overhead contact system the rigid catenary is an overhead contact system ocs that can replace, with many advantages, the contact wire with sustentation wire, the third rail or the suspended bimetallic trail.
The feeder stations are usually fed from a highvoltage electrical grid. Overhead rate administra tion overhead works cost x 10 0 the question comes as to how the admi nistration expenses are absorbed in total cost. The compression terminals are used to feed power to the contact wire. Design of light rail transit overhead contact systems at complex. The basic theory underlying the operation of delta and wyeconnected distribution systems is also presented, and the differences between the two. It has the effect of oversta ting the cost of jobs. As ttc had no experience with pantograph operation, they contacted several transit agencies and conducted meetings to find out their experiences with. Overhead distribution systems safety training course. As the terminals do not only have to give a good electrical contact but also safe mechanical support, they must be fitted and compressed with a bronze clip see accessories between the contact wire and the terminal. Ole, overhead contact system, overhead line electrification for railways, overhead line equipment, overhead wiring system post navigation. Maintaining safety of overhead catenary on the shinkansen. Dec 15, 2018 click the image, save the pdf and off you go.
These are independent of the contact system used, so that, for example, 750v dc may be used with either third rail or overhead lines the latter normally. Our systems can reduce metal fatigue and improve the performance and safety of overhead catenary systems. Overhead contact system how is overhead contact system abbreviated. Identify common overhead distribution system layouts. Subdivision 16350 overhead contact system basic electrical materials and methods subdivision 16371 overhead contact system. Our guides will help you determine which durability level and power level you need for the items or products you will be placing on the conveyor system.
Join us for a conversation to discuss the overhead contact system that powers san franciscos zeroemissions electric trolley bus fleet, and how were replacing these lines for the first time on van ness avenue. The interface with the rolling stock is the contact between pantograph and contact wire. Webcorobayashi joint venture seeks responses to a request for qualifications rfq from trade subcontractors interested in bidding the tg12. All ocs system support and registration assemblies such as cantilevers. For electric traction on railways these generally consist of a contact wire or wires, supported at intervals by droppers. Unlike conventional ocl monitoring systems, which detect contact wire positions using. All mounting and line hardware with insulation both temporary and permanent. We consider our unique experience of contact wire breaks, feeding systems and the current collecting system to be effective for highspeed trains. Certain tests will be developed to analyze the performance of the overhead contact system under varying conditions.
In addition, safety certification must be accomplished before the tes system is energized and put into operation. Combined with our innovative product design and manufacturing superiority, our distributors are a proud part of the family, sharing our name, red ribbon logo, and commitment to excellence. Introduction and overview the tes for a typical modern light rail or street car system includes an overhead contact system ocs, traction power substations and feeder cables, together with associat ed substation protective. In oscar, the overhead line is modelled using the finite element. It may take the form of a short insertion in the contact wire or that of an extended. It explains how to identify circuits and equipment in the field and introduces delta and wyeconnected distribution systems.
All overhead contact systems exhibit the characteristic of increased sag between supports and loss of tension when conductor temperatures rise due to solar gain andor current heating. Specifically, this paper reports details of the videobased monitoring techniques that have been adopted to inspect the stability of overhead contact line ocl components at 400 kmh. The overhead conductor rail mainly bears only its own weight. Jr east is developing an overhead contact line condition monitoring system to be equipped to trains in operation so as to obtain frequent data about contact wires. With the touch of the power button, scansnap sv600 is ready to scan in just 3 seconds.
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