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MRTC Class 3100
The MRTC 3100 class or CRRC Dalian 8MLB LRV, commonly called as the Dalian Train, is the class of second-generation uni-directional light rail vehicles built in China by CNR Dalian, now CRRC Dalian. Since its delivery, most of the trains are still being tested and undergoing final assessments, before being used on regular services on Line 3 of the Manila Metro Rail Transit System. These trains are the first LRVs produced by CNR Dalian, which caused some controversy due to compatibility issues. The CRRC Dalian 8MLB LRVs are owned by the Philippine government and operated by the Department of Transportation (DOTr). Purchase With the ridership of the Line 3 already peaking at almost half of its 350,000 original daily capacity, there have been calls to purchase additional trains as early as 2008. Initially, in 2013, the government was looking at buying 52 second-hand trains from Madrid Metro and Inekon Trams to immediately augment the problem, but after evaluation, the order ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shaw Boulevard Station
Shaw Boulevard station (also called Shaw for short) is an elevated Manila Metro Rail Transit (MRT) station situated on Line 3. The station is located in the Mandaluyong portion of Ortigas Center and is named after Shaw Boulevard, since the station lies directly above the boulevard. Being at the center of the whole line, many commuters regard Shaw Boulevard station as the "central terminal" of the line. The station is the seventh station for trains headed to Taft Avenue and North Avenue. It is one of five stations on the line where passengers can catch a train going in the opposite direction without paying a new fare due to the station's layout. The other four stations are Araneta Center-Cubao, Boni, Buendia, Ayala, and Taft Avenue. Excluding Araneta Center-Cubao station, it is also one of four stations on the line with its concourse level located above the platform. Station layout Shaw Boulevard station is the only station on the line with 3 tracks; with 1 reserve track used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volt
The volt (symbol: V) is the unit of electric potential, electric potential difference (voltage), and electromotive force in the International System of Units (SI). It is named after the Italian physicist Alessandro Volta (1745–1827). Definition One volt is defined as the electric potential between two points of a conducting wire when an electric current of one ampere dissipates one watt of power between those points. Equivalently, it is the potential difference between two points that will impart one joule of energy per coulomb of charge that passes through it. It can be expressed in terms of SI base units ( m, kg, second, s, and ampere, A) as : \text = \frac = \frac = \frac. It can also be expressed as amperes times ohms (current times resistance, Ohm's law), webers per second (magnetic flux per time), watts per ampere (power per current), or joules per coulomb (energy per charge), which is also equivalent to electronvolts per elementary charge: : \text = \tex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uni-directional Vehicle
A uni-directional vehicle is a vehicle that is normally designed to operate only in the forward direction. While the vast majority of road vehicles are like this, the term generally refers to a train or tram with a distinguishable front and rear end and a single operating cab at the front end. These vehicles often have the capability to operate in reverse, though such operations are limited to low speeds and short distances, such as shunting. Uni-directional vehicles commonly have entry and exit doors on only one side of the vehicle (usually the sidewalk side), although some are equipped with doors on both sides, or operate in opposing traffic flow, to facilitate the use of island platforms. Having doors on only one side allows for an increase in seating on board the vehicle, compared to bi-directional vehicles which have doors on both sides. Because a uni-directional vehicle can only travel in one direction they require special infrastructure for turning around at a terminal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LED Lamp
An LED lamp or LED light bulb is an electric light that produces light using light-emitting diodes (LEDs). LED lamps are significantly more energy-efficient than equivalent incandescent lamps and can be significantly more efficient than most fluorescent lamps. The most efficient commercially available LED lamps have efficiencies of 200 lumen per watt (Lm/W). Commercial LED lamps have a lifespan many times longer than incandescent lamps. LED lamps require an electronic LED driver circuit to operate from mains power lines, and losses from this circuit means that the efficiency of the lamp is lower than the efficiency of the LED chips it uses. The driver circuit may require special features to be compatible with lamp dimmers intended for use on incandescent lamps. Generally the current waveform contains some amount of distortion, depending on the luminaires’ technology. The LED lamp market is projected to grow from US$75.8 billion in 2020 and increasing to US$160 billion in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MRTC 3000 Class
The MRTC 3000 class or ČKD Tatra RT8D5M LRV, also known as Tatra Train, is a class of high-floor light rail vehicles built by Czech tram manufacturer ČKD Tatra. It is currently used on the Manila MRT Line 3 and were the last made by ČKD Tatra before it was taken over by Siemens. ČKD Tatra RT8D5M LRVs are owned by Metro Rail Transit Corporation (MRTC), and operated by the Department of Transportation (DOTr) thru DOTr MRT-3. Purchase The Manila MRT Line 3 construction began in 1996 when the then-Department of Transportation and Communications (DOTC; later the Department of Transportation) entered into a build-lease-transfer agreement with the Metro Rail Transit Corporation (MRTC). MRTC signed a contract with ČKD Tatra in 1997 to supply the trains for the line. Aside from a prototype, 73 light rail cars are produced by ČKD in two batches; 49 were produced in 1998 and the other 24 were completed the following year. The first train was flown into Manila via plane whil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scharfenberg Coupler
The Scharfenberg coupler (german: Scharfenbergkupplung, abbreviated ''Schaku'') is a commonly used type of fully automatic railway coupling. Designed in 1903 by Karl Scharfenberg in Königsberg, Germany (today Kaliningrad, Russia), the coupler has gradually spread from transit trains to regular passenger service trains, although outside Europe its use is generally restricted to mass transit systems. The ''Schaku'' is superior in many ways to the AAR (Janney/knuckle) coupler because it also automates electrical and pneumatic connections and disconnections. However, there is no standard for the placement of these electro-pneumatic connections. Some rail operators have placed them on the sides while others have placed them either below or above the mechanical portion of the coupler. . Working principles The face of the Scharfenberg coupler has a protruding cone and a matching cup. Inside the cone there is a rigid metal hoop connected to a revolving, spring-loaded metal disk with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automatic Train Protection
Automatic train protection (ATP) is a type of train protection system which continually checks that the speed of a train is compatible with the permitted speed allowed by signalling, including automatic stop at certain signal aspects. If it is not, ATP activates an emergency brake to stop the train. See also * Advanced Civil Speed Enforcement System * Anti Collision Device * Automatic Warning System * Automatische treinbeïnvloeding (ATB) * British Rail's ATP system * Continuous Automatic Warning System (CAWS) * EBICAB * European Train Control System (ETCS) * Kavach * Positive Train Control (PTC) * Punktförmige Zugbeeinflussung (PZB) * Train Protection & Warning System The Train Protection & Warning System (TPWS) is a train protection system used throughout the British passenger main-line railway network, and in Victoria, Australia. The British Rail Safety and Standards Board's definition is: The purpose of TP ... * Train Warning System References {{rail-trans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EBICAB
EBICAB is a trademark registered by Bombardier (later Alstom) for the equipment on board a train used as a part of an Automatic Train Control system. EBICAB was originally derived from Ericsson's SLR system in Sweden. Most trains in Sweden and Norway use a similar on-board system, Ansaldo L10000 (more known as ATC-2) from Bombardier's competitor Ansaldo STS (now Hitachi Rail STS). ATC-2 was also developed in Sweden. These on-board systems use pairs of balises mounted on the sleepers. The pairs of balises distinguish signals in one direction from the other direction with semicontinuous speed supervision, using a wayside to train punctual transmission using wayside transponders. Versions EBICAB comes in two versions, EBICAB 700 in Sweden, Norway, Portugal and Bulgaria and EBICAB 900 installed in the spanish Mediterranean Corridor ( vmax= 220 km/h), and in Finland ( fi, Junakulunvalvonta) under the name ATP-VR/RHK. In Portugal it is known as Convel (the contraction of Control ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bombardier Transportation
Bombardier Transportation was a Canadian-German rolling stock and rail transport manufacturer, headquartered in Berlin, Germany. It was one of the world's largest companies in the rail vehicle and equipment manufacturing and servicing industry. Bombardier Transportation had many regional offices, production and development facilities worldwide. It produced a wide range of products including passenger rail vehicles, locomotives, bogies, propulsion and controls. In February 2020, the company had 36,000 employees, and 63 manufacturing and engineering locations around the world. Formerly a subsidiary and rail equipment division of Bombardier Inc., the company was acquired by French manufacturer Alstom on 29 January 2021. History 20th century 1970s: Formation and first orders Canadian company Bombardier Inc. entered the rail market in 1970 when it purchased Lohnerwerke GmbH of Austria. Bombardier Transportation's first order for mass transit rolling stock was in 1974 for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knorr-Bremse
Knorr-Bremse AG is a German manufacturer of braking systems for rail and commercial vehicles that has operated in the field for over 110 years. Other products in Group's portfolio include intelligent door systems, control components, air conditioning systems for rail vehicles, torsional vibration dampers, and transmission control systems for commercial vehicles. In 2019, the Group's workforce of over 28,000 achieved worldwide sales of EUR 6.93 billion. The Group has a presence in over 30 countries, at 100 locations. On 4 November 2020, it was announced that Knorr-Bremse AG had chosen Dr. Jan Michael Mrosik to be a member of the Executive Board and CEO. The appointment takes effect as of 1 January 2021. History Foundation Engineer Georg Knorr established ''Knorr-Bremse GmbH'' in 1905 in Boxhagen-Rummelsburg, Neue Bahnhofstraße, near Berlin (since 1920 part of Berlin-Friedrichshain). Its production of railway braking systems derived from a company ("Carpenter & Schul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regenerative Brake
Regenerative braking is an energy recovery mechanism that slows down a moving vehicle or object by converting its kinetic energy into a form that can be either used immediately or stored until needed. In this mechanism, the electric traction motor uses the vehicle's momentum to recover energy that would otherwise be lost to the brake discs as heat. This method contrasts with conventional braking systems. In those systems, the excess kinetic energy is converted to unwanted and wasted heat due to friction in the brakes, or with rheostatic brakes, where the energy is recovered by using electric motors as generators but is immediately dissipated as heat in resistors. In addition to improving the overall efficiency of the vehicle, regeneration can significantly extend the life of the braking system as the mechanical parts will not wear out quickly. General principle The most common form of regenerative brake involves an electric motor functioning as an electric generator. In elect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dynamic Braking
Dynamic braking is the use of an electric traction motor as a generator when slowing a vehicle such as an electric or diesel-electric locomotive. It is termed " rheostatic" if the generated electrical power is dissipated as heat in brake grid resistors, and " regenerative" if the power is returned to the supply line. Dynamic braking reduces wear on friction-based braking components, and regeneration lowers net energy consumption. Dynamic braking may also be used on railcars with multiple units, light rail vehicles, electric trams, trolleybuses, and electric and hybrid electric automobiles. Principle of operation Converting electrical energy to the mechanical energy of a rotating shaft (electric motor) is the inverse of converting the mechanical energy of a rotating shaft to electrical energy (electric generator). Both are accomplished through the interactions of armature windings with a (relatively) moving external magnetic field, with the armature connected to an electrical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
