
	Where results make sense

Topic: Traction power network

Related Topics

Electric power transmission

Basslink

High speed train

Transport in Europe

Armored division

Europe

Continental Europe

Harcourt Fenton Mudd

In the News (Fri 25 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Omnipelagos.com ~ article "Traction power network" (Site not responding. Last check: 2007-10-19)
		The traction current supply line is connected to substations along the line of the railway and is usually run separately from the overhead catenary wire from which the locomotives are fed. The Mariazeller railway operates on single phase AC at a 25 Hz utility frequency.
		Traction current supply lines are not usually laid parallel to the railway line, in order to allow a shorter line length and to avoid unnecessary influences to the electrical system near the railway line; this also is applied to the current supply of some rapid-transit railways operating with alternating current in Germany.
		The traction current supply lines from the nuclear power station Neckarwestheim to the traction current switching station at Neckarwestheim and from there to the central substation in Stuttgart, Zazenhausen are implemented as a four-bundle conductor circuit.
	www.omnipelagos.com /entry?n=traction_power_network (715 words)

	Track & Traction Current
		Traction current wasn't lost, but the drop in traction current voltage was sufficient that the tunnel lighting relays couldn't remain energised and thus the lights came on.
		Generally, the traction current section (or subsection as it is often known) is named according to where it is fed from and the direction of travel, e.g.
		Richard Griffin shows the power in the traction circuit as a train of A Stock accelerates away from Harrow-on-the-Hill and produces an arc as a shoe runs off a ramp at the end of a current rail.
	www.trainweb.org /tubeprune/tractioncurr.htm (4089 words)

	ECE 345 Projects
		Power levels up to 1 uW are desired, but the team should compute what is feasible in a typical urban environment.
		The purpose of this project is to create power converters and energy sources to illustrate a variety of functions, to help show the principles of power electronics and alternative energy to beginning electrical engineering students.
		The output power is up to 250 W continuous and 500 W for up to one minute.
	power.ece.uiuc.edu /stuproj.htm (3829 words)

	Techworld.com - Networking Interviews - Power over Ethernet: Promise and problems
		Since the capacity to deliver power over the Internet is very limited (in the milliamp ranges), the primary consideration is to know what the application electrical load is, and how all of the loads aggregate on the system, and if the system is capable of delivering that degree of power.
		For instance, consider power transmission characteristics where a higher frequency causes the current (which actually does the electrical "work") to ride on the outside or "skin" of the conductor, which in turn increases inductance and crosstalk with signals that carry the data being transmitted.
		Limited power capacity, potential for network disruption, potential for interference with data signal transmission, power sourcing equipment at the network hubs, power conditioning, liability for power-related issues in connected equipment.
	www.techworld.com /networking/features/index.cfm?featureID=2541&pagtype=samechan (1417 words)

	COMMISSION REPORT MACRO
		It is recommended that the Commission authorize the issuance of Contract Amendment No. 2 for service contract C31V8845 with Black and McDonald in the amount of $450,000.00 to allow for the continued maintenance, emergency repair and new construction of the Commission’s traction power system, bringing the total contract authorization to $1,495,000.00.
		The Commission is responsible for maintenance, emergency repairs and ongoing upgrade of numerous incoming high voltage AC power supplies and the 600 Volt DC traction power network.
		The traction power system utilizes an extensive network of positive and negative cables running through underground chambers to provide traction power to the Subway and Streetcar Operations.
	www.ttc.ca /postings/gso-comrpt/documents/report/f1879/_conv.htm (447 words)

	Traction Software, Inc. \| Public623: SITA Gets Traction with Enterprise Blog Software (Site not responding. Last check: 2007-10-19)
		One of SITA’s key objectives underpinning the use of Traction TeamPage as a common and unique blog platform was to overcome the structural and practical barriers between people, time zones, business units and departments, regional processes and hierarchy, where common tools such as voice-mail and e-mail could not bring the necessary visibility, accessibility and coverage.
		Traction’s easy to use TeamPage™ software creates a secure communications hub for business information and working communications that collects, organizes, links and shares sources of information in context over time.
		Traction Software has been named one of the 100 Companies that Matter by KMWorld and is a winner of the RedHerring 100 and eContent 100 awards.
	traction.tractionsoftware.com /traction/permalink/Public623 (988 words)

	PB Network \| Issue 48 \| Quantitative Analysis of Harmonics Generated by DC Traction Power Supply: A Case Study
		Traditionally, traction power supply has been one of the primary sources of electromagnetic interference (EMI), which causes trouble in the electronic signaling equipment that detects low level ac currents in the rails to confirm the absence of trains.
		The power supply contractor for the Mass Transit Railway (MTR) Tseung Kwan O Extension project in Hong Kong is required to conduct an assessment of the harmonics in the 1500 V DC traction power supply.
		Other harmonics generated by the traction power supply equipment in the interested frequency ranges are within the limits of the interested signaling equipment and have quite a generous safety margin.
	www.pbworld.com /news_events/publications/network/issue_48/48_35_PangJ_QuantitativeAnalysisofHarmonics.asp (1357 words)

	Traction
		And the empire's jurisdiction outside of Traction itself was limited to protecting against piracy and foreign powers.
		Greyman VII is poorly remembered by common citizen of Traction, except for being the only emperor besides Greyman I whose rule ended due to his death -- and that after a remarkably short period of regency.
		The emperor theoretically has the power to perform any action within the Traction system itself, however, in reality he cooperates widely with the lower house, consisting of officials elected by the entire population of Traction, and the upper house, consisting of the leaders of every corporation in Traction.
	www.orionsarm.com /worlds/Traction.html (2001 words)

	Courses
		Power electronic circuits and switching devices such as power transistors, MOSFETs, SCRs, GTOs, IGBTs, and UJTs are studied.
		Design of reliable power systems, power systems security analysis, optimal scheduling of power generation, estimation of power system state.
		Advanced power electronic converters, techniques to model and control switching circuits, resonant converters, multi-level converters, Pulse-Width-Modulation (PWM) techniques, soft switching methods, and low-voltage high-current design issues are studied.
	apc.iit.edu /power/courses1.htm (720 words)

	3 Phase Frequency and Three Phase Frequency Converter Models - The 3 Phase Power Resource Site
		The countries Germany, Austria, and Switzerland use a traction power network for railways, distributing single-phase AC at 16.7 Hz.
		Because of its smooth wave length properties, 3 phase electrical power is used across the U.S. and throughout the world.
		There are a whole variety of power equipment and power tools which require 3 phase power to run.
	www.3phasepower.org /3phasefrequency.htm (758 words)

	Computer Power User Article - Tomorrow’s Network (Site not responding. Last check: 2007-10-19)
		Currently Windows XP sends all network traffic to one CPU, regardless of whether you (or the manufacturer) install multiple processors in the computer, and that causes glitches in video and hiccups in applications when you stream large files to or from the computer.
		As network speeds continue to ramp up, the system bus is quickly becoming the main networking bottleneck.
		Networking devices that get their electricity from the Ethernet cable using 802.3af PoE (Power over Ethernet) technology should expand dramatically in the future and make it much easier to place networking devices throughout your house, or even outside it.
	www.computerpoweruser.com /editorial/article.asp?guid=&searchtype=0&article=articles/archive/c0602/33c02/33c02.asp&articleid=29618&WordList=&bJumpTo=True (2160 words)

	PB Network \| Issue 48 \| Meeting Electrical Demand
		Power engineers utilize software programs that take these factors into account when performing piecewise linear calculations to identify mechanical demand.
		The traction power distribution system needed is usually determined by the type of rail system being designed.
		The design of the power circuit return is another concern that is usually handled by using the running rail as the return.
	www.pbworld.com /news_events/publications/network/issue_48/48_31_GohariJ_ElectricalDemand.asp (575 words)

	Industry Highlights and Customer Testimonials
		Intel® network processors are designed to meet the specialized packet handling requirements of market segments ranging from customer premises to access, edge, and core segments of the network.
		Network processors are finally gaining traction, with low-end wireless as an initial foothold.
		Intel network processors are used by a wide range of network equipment vendors in a variety of wireless and wired applications.
	www.intel.com /design/network/products/npfamily/npvideos.htm (580 words)

	Draught Animal Power ... An Overview
		Animal power is a renewable energy source that is particularly suited to family-level farming and to local transport.
		The duality of animal power for transport and fieldwork requires broader responsibility and not confined to agriculture.
		Animal power networks should be multidisciplinary and involve the public, private and informal sectors and users of animal power.
	www.fao.org /ag/ags/subjects/en/farmpower/power/overview.html (3530 words)

	AUTOS & BOATS : Tires : Tire Selection : DIY Network
		The rubber is very soft and gooey to provide maximum traction, so they wear out extremely quickly.
		This design allows the tire to maintain good traction when there is water on the road and helps prevent loss of control through hydroplaning.
		The proper tire size for your vehicle is listed in your owner's manual and may also be printed on a decal attached to your vehicle -- usually on the door edge or in the trunk.
	www.diynetwork.com /diy/ab_tires/article/0,2021,DIY_13697_2271481,00.html (1084 words)

	CRESSALL Electrical Power Resistors
		This is a result of the high frequency switching of the power to the traction motors, typically several hundred Hertz.
		The two types of crowbar resistor, hard and soft, are both used in traction power supply circuits to deal with the effects of transient or longer lasting over-voltage conditions.
		Modern solid state traction systems use capacitor/inductor filter circuits to decouple the traction power supply from the drives.
	www.cressall.com /a-rail-traction.htm (557 words)

	Open source network monitoring -- An open alternative
		Network monitoring and management applications can be costly and cumbersome, but recently a host of companies have sprung forth offering an open source alternative to IBM Tivoli, HP OpenView, CA and BMC -- and they're starting to gain traction.
		Many of the open source alternatives are quick to admit that their solutions aren't for everyone, but they bring to the table arguments in their favor that networking pros can't ignore, namely low cost and ease of use.
		Another big concern for enterprises is the high cost of network management and monitoring solutions, where a large chunk of money is spent and not all features are used.
	searchnetworking.techtarget.com /originalContent/0,289142,sid7_gci1242762,00.html (1646 words)

	Techworld.com - Networking How-Tos - Best practices in network acceptable-use policies
		From dealing with viruses and other threats, through extending your network to customers and remote employees, to dealing with network optimisation, there are so many considerations that it can often feel overwhelming and isolating.
		To make things more complex, for every new thought you might have about how to improve your network or make it safer or boost productivity, there are myriad software packages, gear and industry models that you have to sift through to find a match for your environment.
		Invariably, if you ask any experienced network manager what their biggest ongoing challenge is, they'll say their users.
	www.techworld.com /networking/features/index.cfm?FeatureID=2291 (1057 words)

	Battery Power, Products & Technology Magazine and Conference (Site not responding. Last check: 2007-10-19)
		Power Management in Today's and Future Automotive Systems, a new report prepared by Intertechs' power study group, will enhance your understanding of the technologies and techniques being employed by leading-edge designers around the world to conserve the power available in today's vehicles and demonstrate how to design around a limited resource.
		Semiconductors, power MOS, IGBTs, smart power ICs, hybrids, x-by-wire actuators, and switched reluctance motors (among others) are all discussed in the context of designing for conservation of available power.
		It remains the primary power source today, but its future is becoming less certain as environmental concerns, burgeoning populations and dwindling petroleum supplies combine to force industry to look ahead to something else.
	www.batterypoweronline.com /bppt_bkstr.htm (2599 words)

	Sun.Star Cebu - Honda Accord packs new features to improve traction, cut shift shock
		Honda’s new car models are equipped with new technologies such as the drive-by-wire (DBW) system, traction control system, cruise control system and remote power window operation for dynamic and safety performance, according to a statement.
		This is because the throttle gradually opens, which results to smoother acceleration that is safe and convenient during traffic jams and parking,” the statement said.
		The traction control system assists the driver in maintaining traction while driving on loose or slippery surfaces.
	www.sunstar.com.ph /static/ceb/2004/08/30/bus/honda.accord.packs.new.features.to.improve.traction.cut.shift.shock.html (316 words)

	Getting Traction
		With Traction Software's KM solution, content flowing through all these channels is easily captured by the Java-based Traction Server, which can be best described as an enterprise Weblog system.
		Traction says you'll be up and running in 15 minutes, and that was true of our Windows XP installation.
		This powerful and easy-to-deploy Java-based KM server converts e-mail, Web content, and Office documents into an XML database that can be reorganized and searched.
	www.infoworld.com /articles/ap/xml/02/07/15/020715aptraction.html (1430 words)

	About: Power.org
		The announcement was made at a Power Everywhere™ event in China (see Resources for a link to the full press release, which includes information on other announcements made at the same event today).
		One of the primary benefits of the Power Architecture is its ability to scale, and when I mean scale, I don't just mean in terms of one, two, three, four, five, but to scale from very small applications, such as a toaster [laughs], all the way up to large supercomputers that we see today.
		In the approach that we're presenting here with this Power ecosystem, IBM is proposing that while IBM manages the instruction set to prevent fragmentation, we are creating a community and an approach that will enable people to build a lot of value around the Power Architecture and capture that value themselves.
	www-128.ibm.com /developerworks/library/pa-powerint (3624 words)

	Electric Power and Power Electronics Center at Illinois Institute of Technology
		Advanced power electronic converters, techniques to model and control switching circuits, resonant converters, multilevel converters, Pulse-Width-Modulation (PWM) techniques, soft switching methods, and low-voltage high-current design issues are studied.
		Power Market Economics and Security Prerequisites: ECE 420 or consent of instructor.
		Modifications to unit commitment, economic dispatch, and interchange scheduling, optimal power flow tools to be used by ISO.
	power.iit.edu /education/eppec (1190 words)

	PC World - Faster HomePlug Power-Line Networking Gear--Finally (Site not responding. Last check: 2007-10-19)
		Power-line networking supporters are hoping to gain traction as people begin to acknowledge wireless networking's limitations for high-bandwidth applications that require quality-of-service features--meaning the ability to prioritize packets so that streamed video or audio plays smoothly.
		Setting up a network requires at least two such adapters: one to plug into an Internet-connected router, and another to plug into the ethernet port of whatever device you wish to put on the network.
		In fact, power-line networking is nothing new for some existing SlingBox owners: Sling Media's SlingLinks power-line adapters, accessories that connect SlingBoxes to network routers in homes that do not have ethernet cabling, are based on the original 14-mbps HomePlug 1.0 standard.
	www.pcworld.com /article/id,127409-c,powerline/article.html (1005 words)

	Traction power network - Article from FactBug.org - the fast Wikipedia mirror site
		A traction power network is a electricity grid for the supply of electric trains.
		The installation of separate traction power network is meaningful as a rule only if the railway company run with AC of decreased frequency, like in Germany, Austria and Switzerland.
		Also at railways, which run with single phase AC current of decreased frequency, this is done in Mecklenburg Vorpomern, Saxonia-Anhalt, Norway and Sweden.
	www.factbug.org /cgi-bin/a.cgi?a=1675948 (231 words)

	Finding Traction - Technical Articles - Four Wheeler Magazine
		As always, power is critical in the snow, so apply it carefully.
		Traction is easy to lose and, once lost, difficult to regain.
		Maintaining traction on rocky surfaces has a lot to do with the condition of the rock itself.
	www.fourwheeler.com /techarticles/20938_finding_traction/index.html (1293 words)

	Power Silicon Rectifiers (Site not responding. Last check: 2007-10-19)
		A rectifier unit may be configured into a wide variety of connections to meet requirements of output ripple.
		They are protected from voltage surges by high energy surge suppessors and an RC snubber network to limit all switching and lightning surges to an admissible level according to NEMA RI-9.
		The surge suppessor acts to limit the voltage magnitude to alevel less than the peak reverse voltage of the diodes, while the RC snubber network acts to provide a low impedance path to fast rise time transient voltages.
	www.smcelectrical.com /rectifiers.htm (764 words)

Try your search on: Qwika (all wikis)