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Topic: Railway electrification system

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HVDC

Electric power transmission

	Railway electrification system - Wikipedia, the free encyclopedia
		The common voltages are 600 V and 750 V for trams and metros, and 1500 V and 3000 V for railways.
		The 3000 V DC system is used in Belgium, Italy, Poland, the northern Czech Republic, Slovakia, Slovenia, western Croatia and in the former Soviet Union.
		This system is quite economical, but it has its drawbacks: the phases of the external power system are loaded unequally, and there is significant electromagnetic interference generated, not to mention accoustic noise.
	en.wikipedia.org /wiki/Railway_electrification_system (2039 words)

	Everything about Valonija (Site not responding. Last check: 2007-10-22)
		The 3000 V DC system is used in Belgium, Italy, Poland, the northern Czech Republic, Slovakia, former Yugoslavia and in the former Soviet Union.
		This system is quite economical, but it has its drawbacks: the phases of the external power system are loaded unequally, and there is significant electromagnetic interference generated.
		The 25 kV 50 Hz single-phase AC system is used in France, Great Britain, Finland, Denmark, the former Soviet Union, the former Yugoslavia, Japan and parts of Australia (namely, all electrification in Queensland and Western Australia), while USA commonly uses 12.5 and 25 kV at 60 Hz.
	valonija.hr.wikimiki.org (1581 words)

	Pantograph,Railroad,Railway,Electrification
		An electrification system for dedicated coal-hauling branchlines is described whose construction cost is roughly half that of conventional catenary electrification.
		The system is designed for train speeds limited to 100 kph (62 mph) and based on the single-sidewire concept.
		A major uncertainty in cost estimations of railway electrification is the almost total lack of standardization.
	www.pages.drexel.edu /~garfinkm/PantoIntro.html (212 words)

	Railway Electrification in Melbourne
		To state it briefly, electrification means the substitution for steam locomotives of electric current generated in one or more power houses, and transmitted from there by overhead wire or third rail conductors to motors on electric locomotives or under the carriages, which convert this current into tractive power.
		In considering the financial results of electrification, regard must, therefore, be had to its effect on the gross revenue, the working expenses, and the interest charges.
		Their conversion would especially be of value in enabling us to ascertain the expense of electrification, the cost of electrically working our suburban trains and lines as compared with steam locomotive working, and the increase in traffic and in revenue which may be anticipated from the improved electric service, especially in competition with the tramways.
	www.rawsonplace.esmartdesign.com /commissioner/tait-report.htm (2886 words)

	[No title]
		The repairing system presented above is based on the interchangeability of the spare parts and of the aggregates from the composition of the respective locomotive.
		On the Brazilian railways there are presently exploited Diesel locomotives with electrical transmission, yet certain railway sections have been electrified - in the continuous power system of 3 kV -, the locomotives used at hauling the trains on these railway sections having the series 2,000.
		On the railways existing in the Asian republics from the former URSS, due to the oil they have available, the hauling based on Diesel engines is favored, as a consequence being approached Diesel technology.
	www.cfr.ro /jf/engleza/0303/loco.htm (2331 words)

	EU Rly Power Sply
		The use of DC electrification for the early electrification schemes around Europe in Italy, Belgium, Spain, France, Britain and Holland was influenced strongly by practice in America, mainly by the success of the Chicago and Milwaukee and St Paul high voltage overhead DC electrification scheme.
		In the business case, high speed railways operating on a single electrification system could offer competition on ticket prices to low cost airline, whose cheapest tickets are often on flights very early in the morning or late at night and have to be pre-booked early.
		Standardisation of electrification can not be realised at this moment in time due to many bureaucratic issues, uncertainties, complexities in operational issues that the European railways, the Governments of EU states, the EU and UIC have to resolve and agree.
	www.lococarriage.org.uk /eurlypwrsply.htm (8651 words)

	Virginian Railway - (Site not responding. Last check: 2007-10-22)
		The Virginian Railway was built early in the 20th century by building the Deepwater Railway in West Virginia and the Tidewater Railway in Virginia, and then combining them.
		The last spike in the Virginian Railway was driven on January 29, 1909, at the west side of the massive New River Bridge at Glen Lyn, near where the new railroad crossed the West Virginia-Virginia state line.
		In the mid 1950s VGN management realized that the company's devotion to coal as its energy source (for steam locomotives and the power plant at Narrows for the electrification system) was becoming overshadowed by the economies of diesel-electric locomotives and a scarcity of parts for the older steam locomotives.
	psychcentral.com /psypsych/Virginian_Railway (3487 words)

	Railway Electrification :: Continuing Professional Development \| Department of Electronics \| The University Of York (Site not responding. Last check: 2007-10-22)
		Railway electrification systems have undergone significant development in recent years due to the demands of high-speed lines, metros and light rail systems.
		In order to achieve safe and reliable integration of electrical/electronic systems, such as train control systems, in the railway environment, a basic understanding of railway electrification systems is required.
		Also railway electrification is changing with moves away from traditional DC and 16 ⅔ Hz systems in Europe to 25kV AC and in the UK the introduction of auto-transformers on the WCRM project.
	www.elec.york.ac.uk /cpd/shcourse/railway-electrification.html (213 words)

	Karlsruhe: The Karlsruhe model of a dual-mode railway system (Site not responding. Last check: 2007-10-22)
		The dual-mode railway system of Karlsruhe is widely regarded as the model of a high-quality and well patronised local public transport system.
		Electrification in the City of Aachen will be 1500 V DC, which is the Dutch voltage standard.
		electrification, twin tracks, park and ride facilities) are shared between the national government (60%), regional government of the Land of Baden- Württemberg (20 to 25%), and the local communities (10 to 15%).
	www.eaue.de /winuwd/85.htm (2870 words)

	Railway Technology - Paul Keller Engineering - Railway Electrification
		Founded in 1973 as an independent engineering office for the electrification of railway systems, the company has 40 employees from the fields of energy, mechanics, surveying and electronics.
		These installations are made for a range of railway applications including high speed and light railway systems, maintenance halls and car depots, loading areas and connecting tracks.
		The civil department is responsible for the control ground anchors, cable trays and blocks, test measuring, foundation construction, water supply, road construction and railway track construction.
	www.railway-technology.com /contractors/electrification/keller (515 words)

	15kVAC - Wikipedia, the free encyclopedia
		15 kV AC at 16.7 Hz is a railway electrification system chosen by Germany, Austria, Switzerland, Sweden, and Norway in 1912.
		The high voltage enables high power, while the lower frequency reflects technical limitations at the turn on the 20th century.
		Oddly, when Denmark decided to electrify in the 1970s they chose not to use 15 kV AC, which would have linked compatible systems in Germany and Sweden, but rather 25 kV AC.
	en.wikipedia.org /wiki/15kVAC (172 words)

	Conduit current collection - (Site not responding. Last check: 2007-10-22)
		Conduit current collection was a system of current collection used by electric trams where the power supply was located in a channel under the roadway, rather than located overhead.
		The power rails for conduit cars are contained in a vault between and underneath the running rails, much in the same fashion as the cable for cable cars.
		The world's second electrically operated street railway was in Denver, Colorado, starting in 1885.
	psychcentral.com /psypsych/Conduit_car (545 words)

	Rail Road Component manufacturers, suppliers, exporters of Rail Road Component
		Suppliers and manufacturers of railway braking systems and components and vacuum brake rubber components for freight and passenger stocks.
		Manufacturing sheet metal railway parts, fabricated sheet metal pressed components for railways, railway sheet metal pressed parts, fabricated sheet metal railway components, ferrous sheet metal railway components and nonferrous sheet metal railway parts.
		Manufacturers and suppliers of all types of railway items, railway components that are fabricated using stainless steel, alloy steel and low alloy steel such as gear blank, alloy steel roll, rolling mills, gear box housing, teeth rack and track rack.
	www.indiandata.com /railway_components.html (638 words)

	Sri Lanka Profile : Infrastructure : Roads, Ports, Airports, Railway System (Site not responding. Last check: 2007-10-22)
		Phase II of the replacement of the signaling system on the coast line is also to be implemented.
		The CLS system for the newly opened double line section between Polgahawela and Rambukkana was commissioned in 1999.
		The proposed electrification of the suburban railway system needs to be expedited to increase efficiency.
	www.iornet.com /newiornet/cp/srilanka6.htm (2834 words)

	Railway Electrification System,Air Break Switches,Railway Electrification System Suppliers,Air Break Switches Supplier
		We are leading manufacturers, suppliers of railway electrification system, air break switches, traction gears, auxiliary transformers, booster transformers.
		Auxiliary Transformers 25 KV for Railway AC Traction System.
		The ATs are suitable for pole mounting alongwith the Railway Track for supply of power to electric signaling and or sub station/switching station loads.
	www.saielectricals.com /railway-electrification-system.html (308 words)

	Procurement of railway passenger services - Danish buyer profile (Site not responding. Last check: 2007-10-22)
		The passenger volume on the services procured is expected to grow, primarily as concerns the number of commuters across Oresound.
		The railway service will be separate from the other long distance and regional services in Zealand, which are operated today by the Danish operator DSB.
		The services procured in Denmark furthermore has boundaries touching the local railway operations in North Zealand, the S-trains and public bus transport services in the entire metropolitan region of the capital.
	www.trm.dk /sw51851.asp (235 words)

	Railway Electrification, Chennai Project, History (Site not responding. Last check: 2007-10-22)
		RAILWAY ELECTRIFICATION, CHENNAI PROJECT, headed by a Chief Project Manager is functioning exclusively for the execution of major electrification schemes sanctioned for Southern Railway.
		Electrification on the BG section of Southern Railway was taken up progressively from the late seventies and the sections between CHENNAI-GUDUR, CHENNAI-ARAKKONAM, ARAKKONAM-RENIGUNTA, ARAKKONAM-JOLARPETTAI, JOLARPETTAI-ERODE and JOLARPETTAI-BANGALORE were commissioned in stages by 1992.
		At present, electrification works on ERODE-PALGHAT-ERNAKULAM section are in progress of which the section between ERODE and TRICHUR has already been electrified and opened for commercial traffic.
	business.vsnl.com /cpmrems/activities.html (460 words)

	L & T :: Transmission Line & Railway Electrification
		Both plants are incorporated with the latest CNC line for fabrication of towers and microprocessor-based temperature controlled eco-friendly systems for galvanization of tower members.A 40,000 tpa rolling mill at Pondicherry, also ISO-certified, produces angles and rebars, providing backward integration.
		ECC undertakes route survey, design and engineering, equipment sourcing, supply, erection, testing and commissioning of traction overhead system, switching stations, trackside transformer stations and grid sub-stations.
		Modernisation of the existing signalling system of interlocking at the level crossings.
	lntecc.com /html/transmission_line_railway_electrification.htm (453 words)

	Recent Developments in Railway Electrification - The IET
		If you are an electrification engineer in any sector of the industry, such as consultancy, contracting, operation and infrastructure provision, this event will help you to keep your knowledge up-to-date so that you can continue to offer the best engineering solution, whatever the challenge may be.
		The IEE Railway Professional Network is a gateway to a dynamic community of electronic engineers in the railway industry worldwide.
		Mr Bassam Mansour is a fellow of the IEE and a former employee of British Railways Board; he has extensive working experience in the management of the design, construction and maintenance of a.c and d.c electrification systems in the UK and overseas.
	www.iee.org /events/rail-elec.cfm?PrintVersion=true (1194 words)

	Eas Rf System Full Basic Clues A Person Possibly Crave Ahead Eas Rf System (Site not responding. Last check: 2007-10-22)
		SX system uses RF hard tags and soft tags with a maximum detection distance of 1.20 m on both sides of the antenna.
		EAS Changes by Randy J. Stine Sources familiar with public warning issues expect the FCC's overhaul of the Emergency Alert System to be completed in 2005.
		system that is the easiest and most advanced system available in the market today.
	eassystem.fesseas.com /easrfsystemcef (988 words)

	Rail Road Component Manufacturers,Train Components,Train and Railroad Components Exporters and Suppliers from India
		Engaged in manufacturing of railway carriage fan, compartment sliding door, water tank ceiling construction, protective screen, door way partition and lavatory door catch.
		Dealers of railway breaks, brake system for wagon and coaches and slack adjusters.
		Manufacturers of railway wagons, steel bailey suspension bridges, prefabricated shelters, road building and construction equipment, mining equipment, eot and hydraulic cranes.
	dir.indiamart.com /indianexporters/e_raily.html (2091 words)

	Siemens NZ - Transportation (Products & Services) (Site not responding. Last check: 2007-10-22)
		Siemens Transportation Systems can provide a full Turnkey Project Service for the optimisation of a Rail System.
		Siemens Transportation Systems are supplying 62 Metro Units for Bayside Trains in Melbourne.
		The three car units are based on the modular Mo.Mo Metro Concept which combines superior technology, maximum economy with individual styling.
	www.siemens.co.nz /Transportation/products.htm (240 words)

	Railway Ancillaries Tenders, Procurment Notices and Invitation for Bids (Site not responding. Last check: 2007-10-22)
		Manufacturers and suppliers of all types of railway items, railway components that are fabricated usi...
		Manufacturers and exporters of railway traction gear, pinion, gear box housings, reducti...
		Suppliers and manufacturers of railway braking systems and components and vacuum brake rubber components...
	tenders.indiamart.com /railway-ancillaries23.html (1063 words)

	Amazon.com: A Century of Subways: Celebrating 100 Years of New York's Underground Railways: Books: Brian J. Cudahy (Site not responding. Last check: 2007-10-22)
		While this does put the NYC subway system into context, it doesn't make for a particularly "light" read or give the reader an overall perspective on how the entire NYC subway system developed during the past 100 years and its impact on the city.
		Cudahy does a great job detailing the development and progression of the New York City subway system, but his focus is much more on providing the necessary details almost in reference book form than in trying to construct any sort of compelling narrative.
		Conspiculously absent is any portrait of the key figures involved, or the social forces at work as the subway system was born and then rapidly expanded.
	www.amazon.com /exec/obidos/tg/detail/-/0823222926?v=glance (1704 words)

	Own 2 Ferry Ground Rail Transport (Site not responding. Last check: 2007-10-22)
		Rail transport refers to the transport of passengers and goods along railways or railroads.
		Rail transport refers to the land transport of passengers and goods along railways or railroads.
		This body is responsible for the New York City (NYC) Subway, the Long Island bus system, several suburban rail...
	www.own2.com /buyer/Ferry-Ground-Rail-Transport.html (2854 words)

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