Abb traction rectifiers diode rectifiers for dc traction substations traction power supply. The detailed terms of reference of the subcommittee is given in annexure i terms of reference of the subcommittee on traction systems, general power supply. Traction power substation tps part of the power supply components of the system. Each traction power substation will be composed of the following elements. Traction power substations tps are located along a light rail network with the primary function of providing the facility and equipment to convert the high voltage hv alternating current ac supply to the 750 v dc traction supply for light rail vehicles. It is understood that wmata has undertaken a program to provide more clarity for roles and responsibilities for traction power personnel. Substation 9 replacement designbuild bridging documents for 650 v dc traction power. The railway system division, in its commitment to future progress, has consistently achieved technological breakthroughs on three systems that are shaping the future worldwide. Substation substation a station in the power transmission system at which electric power is transformed to a conveniently used form. Traction power electrification system investigation wmata. Traction substations are used to convert electrical power as supplied by the power utility or rail operators own network to a form suitable for providing power to a rail system via third rail or overhead line. Dc traction power supply rail electrification home. Theory of power distribution contact, catenary and third rail 5. Traction power system design considerations for the.
At each traction substation, normally two single phase transformers are installed, one which is in service and the other is 100% stand by. Chapter 11 transit traction power track design handbook. I i highvoltage ac distribution equipment power conversion equipment. The seminars objective is to provide a basic knowledge of the process of designing an electrical substation.
The use of controlled rectifiers in the traction substations tss was. The traction network in poland is supplied with dc voltage. Electricity enables faster acceleration and higher tractive effort on steep gradients. Low voltage service drops, such as 480 vac, are not normally used for traction power substations because of the high power demands normally encountered. For optimisation of voltage levels in busbars of traction substations, we suggest a methodology where flow of trains is seen as a fixed random. Traction power security related procedures and regulatory agency authority. Following on from my post on railway electrification voltages, i thought an introduction to traction substations would be a good idea. The contractor will explore the feasibility of locating the rtu with the hmi in the control room of the traction substation, preferred location. The standard is intended to address traction power substation rectifiers that are to be provided as part of a rectifier transformer unit, or provided separately.
Branch line interfaces to existing mdt operating territory shall be facilitated using a gap tie breaker or traction power substation facility. The substation construction manual is not intended to replace asset management standards, but. Washington metropolitan area transit authority washington, dc. In 1992 powell entered the traction power substation market with the delivery of innovative solutions and marking us as a leader in the industry. A traction substation, traction current converter plant or traction power substation tpss is an electrical substation that converts electric power from the form provided by the electrical power industry for public utility service to an appropriate voltage, current type and frequency to supply railways, trams streetcars or trolleybuses with. Contact powell today and let us help you with your solution. The station may consist of transformers, switches, circuit breakers and other auxilliary equipment. Traction power electrification system investigation report washington metropolitan area transit authority. Installation of the traction power substation tps is expected to begin in spring 2018 and continue for 12 months. The tps will be installed directly south of interstate 880 at. It draws attention to the effect that the hazard of shortcircuit over many miles of conductor rail has upon the arrangement and. The transformerrectifier sets present in traction substations transform ac voltage supplied from a power grid into appropriate dc voltage. Rtu does the rtu need to accommodate signal power interface see qa24 a3.
Chapter 11 transit traction power track design handbook for. The manual is applicable for all substation projects regardless of internalexternal construction delivery mode. Power line supply line voltage consider how to maintain the substation in service without one, or two lines out of service overhead or underground restrictions for line construction, regulations emergency generator integration load circuits line voltage consider how to enter a building or exit the station overhead or underground see future. The basis of design of the traction power substations shall be to provide sources of power near points of utilization. Amzk, traction power substation rehabilitation project. Ocs, traction power substations and feeder cables, together with associat ed substation protective devices, and may include supervisory control and data acquisition. Design guide for rural substations blank page united states department of agriculture rural utilities service rus bulletin 1724e300 subject. Our endtoend modular portfolio of converters, dc switchgear, and protection systems lets you operate your rail systems with confidence and with top performance, efficiency, and safety. Dc traction power supply abb offers a comprehensive range of dc traction substations for all types of applications including urban transport systems, suburban and mainline railways. Traction power supply abb traction rectifiers diode. Traction electrification substation inspection, maintenance. Singleendfeed, centerfeed, and doubleendfeed systems with or.
Myers power products is a pioneer and leader in the turnkey delivery of custom traction power substations tpss for transit authorities worldwide. Builtinplace substations beauty and brains at the right. Paralleling station boosts and helps regulate power throughout the electric train system. The tps is an unmanned station that will provide electrical power to the electric trains through the overhead contact system. A traction substation, traction current converter plant or traction power substation tpss is an electrical substation that converts electric power from the form provided by the electrical power industry for public utility service to an appropriate voltage, current type and frequency to supply railways, trams streetcars or trolleybuses with traction current. Traction power design practices are evolving through the refinement and adoption of smart substation standards and a proliferation of new hardware and software technology which provides enhanced capabilities and greater flexibility for transit agencies to more effectively operate, maintain and secure critical power distribution infrastructure and. Specialized traction power tools and test equipment 4. The tps will have, in general, traction power substations ss spaced approximately 30 miles apart, located close to hv utility transmission network grid. The reason is that the system must be designed to support normal train operations with one traction power substation tpss outof. With siemens, you can rely on highly available and reliable systems and low lifecycle costs.
Operational and safety considerations for light rail dc. A traction substation, traction current converter plant or traction power substation tpss is an electrical substation that converts electric power from the form. Jun 04, 2010 in order to provide a dependable and cost effective traction power supply system tps for the california highspeed train project chstp the placement, size, and power conditioning of the traction power facilities tpf will be a priority during all phases of the design process. Abb takes over responsibility for design, supply, installation and commissioning of complete traction power supply and distribution systems for rail infrastructure projects. Federal transit administration december 9, 2016 8 new insulators that can be removed for cleaning and then reinstalled. Amtraks 25 hz traction power system is a traction power grid operated by amtrak along the southern portion of its northeast corridor nec. Manual for transmission lines and substation construction.
Unless otherwise approved by mdt, in each case, bridgeable gaps and normally. In order to provide the substation transformers with sufficient power. Between the generating station and consumer, electric power may flow through several substations at different voltage levels. A substation is a part of an electrical generation, transmission, and distribution system.
This document sets out the requirements for the configuration and performance of traction power substations for light rail. Create positions that clearly assign ownership of specific areas of the power infrastructure such as traction power substation maintainer, electrician, cable maintainer and bondsperson, etc. Traction power facilities california high speed rail. Traction power system design considerations for the caltrain.
Newark liberty airport extension conceptual engineering for 2. Dc traction power supply railway and urban transport. It links the general ac medium voltage supply system and. The feeder cables include both the substation dc feeder cables and possible supplementary parallel dc feeders. Traction power facilities california highspeed rail. Weve seen the pitfalls and the hurdles, and know the strategies to keep an electrified rail system moving even while the power system is under replacement.
Simple method for determination of substation spacing for. Initial estimates were that rc would require one or two traction power substations, given its 1. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. A simple method for the determination of traction power substation spacings is developed for ac railroad electrification systems. Modelling of rail traction and power distribution systems. Minimizing property acquisition the acquisition of real estate for the siting of traction power substations in central business. Third rail traction power infrastructure inspection and maintenance a traction power substation housekeeping i housekeeping of traction power substations tpss needs to be improved. Traction power substations are customengineered to meet your exact specifications. This document applies to traction power systems for light rail as integrated systems, including any light rail system high voltage hv network, the traction power substations and the traction power reticulation system. Electrical substation an assembly of equipment in an electric system through which. On locomotives equipped with regenerative brakes, descending gradients require very little use of air brakes.
In general, all substations will be configured with two power transformers although there may be some locations that shall require a substation. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. Over 700 high voltage circuit breakers and switchgears. Most electric railways in this country use the lowvoltage thirdrail system, the remainder using either 1 500volt. Ac traction power supply rail electrification home. Ac or dc traction substations, ocs, energy storage systems, svc, scada, etc modules traction power supply value propositions. Abb traction rectifiers 3 traction power supply is one of the most important parts of the transport infrastructure. With any one traction power substation out of service, the remainder of the substations will be capable of maintaining train operations, albeit with reduced performance.
This document specifies highlevel requirements that apply across all elements of the traction power. Feederless traction power design considerations for new. Railway transportation systems for a comfortable future. This equipment includes the catenary system from which the pantographequipped rolling stock obtains power, and the substations that provide power to the catenary system. Builtinplace substations beauty and brains at the right price trimets traction power substations evolve to a higher level robert hastings tricounty metropolitan transportation district of oregon kinh d. Track design handbook for light rail transit, second edition 112 11. 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. The interstate max substations permit both front and rear access and provide the extra space required. The main advantage of electric traction is a higher power toweight ratio than forms of traction such as diesel or steam that generate power on board. Theory, operation and maintenance of substations 6. Suitable protective equipment is installed at the substations to ensure rapid isolation of any fault in transmission lines and substation equipment, so that the power supply for electric traction is maintained under all conditions. This reduces the price of the primary power equipment by a factor of three and, of course, the footprint of the substation building is also reduced. We have traction power equipment in major systems in north america and around the world.
Traction electrification systems for modern passenger railways are comprised of the electrical equipment needed to power the railway rolling stock. With 30 years of dc traction power substation rehabilitation, replacement, and new installation, theres no design challenge we havent faced. All of the functions of the existing signal substation equipment will be reassigned to work from the new traction. Dc traction power supply highperformance, efficient, and safe reduce costs and save resources using efficient, resilient traction power supply systems. Traction substations ac and dc traction substations energy storage systems frequency converter stations multidisciplinary projects complete electrification projects comprising different domains, such as.
The point at which electric power is tapped from the existing hydro one power source. Traction power supply from design to execution abb offers a vast portfolio for reliable and efficient traction power supply systems. Compact traction power substations have grown up in many ways from their initial generation of applications on transit systems, such that they no longer can be described as compact. The traction power transformer is located at one end of the substation in the banfield and westside arrangement and is located in the lineup between the ac and dc switchgear in the airport and interstate max substations. Washington street powerhouse relocation preliminary design for 650v dc traction power substation relocation. Optimize mobility with the ac traction power supply ac traction power supply in mainline and regional rail service from consulting and planning to project implementation, commissioning, and worldwide service. Standardized traction voltages are 750 v dc, 1500 v dc and 3000 v dc. The traction power supply system tps is the railway electrical distribution network used to provide energy to highspeed electric trains, which comprises three types of traction power facilities tpf traction power substations ss, switching stations sws, and paralleling stations ps in addition to connections to the. The load flow analysis showed that two substations are needed. Comprehensive overview of train operations, safety and history of traction power systems 2. The simplest version of such appliance consists of a rectifier transformer and a rectifier. Ieee traction power substation standards subcommittee meeting on tuesday, march 29 and wednesday, march 30, 2016 at the yale club 50 vanderbilt avenue new york, ny 10017 meeting minutes hosted by metronorth railroad mnr metropolitan transportation authority mta introduction.
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