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Sydney Trains A Set
The Sydney Trains A & B sets, also referred to as the Waratah trains, are classes of electric multiple units that currently operate on the Sydney Trains network. Based on the M sets, the Waratahs were manufactured by a joint consortium between CRRC Changchun and Downer Rail, with initial construction taking place overseas in Changchun before final assembly at Downer Rail's Cardiff Locomotive Workshops. The sets were named after the Waratah flower, which is the state's floral emblem. The initial order for 78 A sets was the largest rolling stock order in Australia's history. These 624 A set carriages make up around half of the Sydney Trains fleet and replaced two-thirds of the 498 S set carriages. Delivery commenced in July 2011 and was completed in June 2014. An order for 24 additional trains with updated technology and a lightly revised design was placed in December 2016. These are classified as B sets, or colloquially as Waratah Series 2 trains. The delivery of the first o ...
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Cardiff Locomotive Workshops
The Cardiff Locomotive Workshops (now known as the Cardiff Maintenance Centre) is a rail yard and rolling stock facility located between Cockle Creek and Cardiff stations near Newcastle, on the Main North railway line in New South Wales, Australia. The site is currently occupied by Downer Rail, where rolling stock is assembled, maintained and stored. Early northern workshops The Hunter River Railway Company established meagre maintenance facilities adjacent to its line at its eastern terminus, near the current day Civic station. Civic Station is no longer in use. (All stations from Wickham to Newcastle are now served by the Newcastle Light Rail which terminates at Newcastle Beach. Opened 17 February 2019) These formed the basis of the Honeysuckle Point Workshops the old buildings of which now lie within the area redeveloped by the Honeysuckle Development Corporation."Cardiff Farewell" Ron Preston ''Railway Digest'' February 1994 page 18 The workshops grew in size as the isol ...
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Carlton Railway Station, Sydney
Carlton railway station is located on the Illawarra line, serving the Sydney suburb of Carlton. It is served by Sydney Trains T4 line services. History Carlton station opened in 1889 with two platforms. As part of the quadruplication of the Illawarra line, a second island platform was added in 1925. In January 2008, lifts were installed at the station. It is the closest station to Jubilee Oval with NSW TrainLink services from Wollongong making extra stops during St George Illawarra Dragons The St. George Illawarra Dragons is an Australian professional rugby league football club, representing both the Illawarra and St George, Sydney, St George regions of New South Wales. The club has competed in the National Rugby League since NR ... games. Platforms & services Transport links Carlton railway station is served by two NightRide routes: *N10: Sutherland station to Town Hall station *N11: Cronulla station to Town Hall station References External links *Carlt ...
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TfNSW T7
Transport for NSW, sometimes abbreviated to TfNSW, and pronounced as Transport for New South Wales, is an agency of the New South Wales Government established on 1 November 2011, and is the leading transport and roads agency in New South Wales, Australia. The agency is a different entity to the New South Wales Department of Transport, a department of the New South Wales Government and the ultimate parent entity of Transport for NSW. The agency's function since its creation is to build transport infrastructure and manage transport services in New South Wales. Since absorbing Roads & Maritime Services (RMS) in December 2019, the agency is also responsible for building and maintaining road infrastructure, managing the day-to-day compliance and safety for roads and waterways, and vehicle and driving license registrations. The authority reports to the New South Wales Minister for Transport, Minister for Metropolitan Roads, Minister for Regional Transport and Roads, Minister for In ...
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Pantograph (transport)
A pantograph (or "pan" or "panto") is an apparatus mounted on the roof of an electric train, tram or electric bus to collect power through contact with an overhead line. By contrast, battery electric buses and trains are charged at charging stations. The pantograph is a common type of current collector; typically, a single or double wire is used, with the return current running through the rails. The term stems from the resemblance of some styles to the mechanical pantographs used for copying handwriting and drawings. Invention The pantograph, with a low-friction, replaceable graphite contact strip or "shoe" to minimise lateral stress on the contact wire, first appeared in the late 19th century. Early versions include the bow collector, invented in 1889 by Walter Reichel, chief engineer at Siemens & Halske in Germany, and a flat slide-pantograph first used in 1895 by the Baltimore and Ohio Railroad The familiar diamond-shaped roller pantograph was devised and patented b ...
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Overhead Line
An overhead line or overhead wire is an electrical cable that is used to transmit electrical energy to electric locomotives, trolleybuses or trams. It is known variously as: * Overhead catenary * Overhead contact system (OCS) * Overhead equipment (OHE) * Overhead line equipment (OLE or OHLE) * Overhead lines (OHL) * Overhead wiring (OHW) * Traction wire * Trolley wire This article follows the International Union of Railways in using the generic term ''overhead line''. An overhead line consists of one or more wires (or rails, particularly in tunnels) situated over rail tracks, raised to a high electrical potential by connection to feeder stations at regular intervals. The feeder stations are usually fed from a high-voltage electrical grid. Overview Electric trains that collect their current from overhead lines use a device such as a pantograph, bow collector or trolley pole. It presses against the underside of the lowest overhead wire, the contact wire. Current collectors ar ...
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Induction Motor
An induction motor or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. An induction motor can therefore be made without electrical connections to the rotor. An induction motor's rotor can be either wound type or squirrel-cage type. Three-phase squirrel-cage induction motors are widely used as industrial drives because they are self-starting, reliable and economical. Single-phase induction motors are used extensively for smaller loads, such as household appliances like fans. Although traditionally used in fixed-speed service, induction motors are increasingly being used with variable-frequency drives (VFD) in variable-speed service. VFDs offer especially important energy savings opportunities for existing and prospective induction motors in variable-torque centrifugal fan, pump and compressor load applications. Squirrel ...
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Spread Spectrum
In telecommunication and radio communication, spread-spectrum techniques are methods by which a signal (e.g., an electrical, electromagnetic, or acoustic signal) generated with a particular bandwidth is deliberately spread in the frequency domain, resulting in a signal with a wider bandwidth. These techniques are used for a variety of reasons, including the establishment of secure communications, increasing resistance to natural interference, noise, and jamming, to prevent detection, to limit power flux density (e.g., in satellite downlinks), and to enable multiple-access communications. Telecommunications Spread spectrum generally makes use of a sequential noise-like signal structure to spread the normally narrowband information signal over a relatively wideband (radio) band of frequencies. The receiver correlates the received signals to retrieve the original information signal. Originally there were two motivations: either to resist enemy efforts to jam the communications ( ...
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Variable-frequency Drive
A variable-frequency drive (VFD) is a type of motor drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and, depending on topology, to control associated voltage or current variation., quote is per definition on p. 4 of NEMA Standards Publication ICS 7.2-2021. VFDs may also be known as 'AFDs' (adjustable-frequency drives), 'ASDs' (adjustable-speed drives), 'VSDs' (variable-speed drives), 'AC drives', 'micro drives', 'inverter drives' or, simply, 'drives'. VFDs are used in applications ranging from small appliances to large compressors. An increasing number of end users are showing greater interest in electric drive systems due to more stringent emission standards and demand for increased reliability and better availability. Systems using VFDs can be more efficient than those using throttling control of fluid flow, such as in systems with pumps and damper control for fans. However, the global market penetration fo ...
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Insulated-gate Bipolar Transistor
An insulated-gate bipolar transistor (IGBT) is a three-terminal power semiconductor device primarily used as an electronic switch, which, as it was developed, came to combine high efficiency and fast switching. It consists of four alternating layers (P–N–P–N) that are controlled by a metal–oxide–semiconductor (MOS) gate structure. Although the structure of the IGBT is topologically the same as a thyristor with a "MOS" gate ( MOS-gate thyristor), the thyristor action is completely suppressed, and only the transistor action is permitted in the entire device operation range. It is used in switching power supplies in high-power applications: variable-frequency drives (VFDs), electric cars, trains, variable-speed refrigerators, lamp ballasts, arc-welding machines, induction hobs, and air conditioners. Since it is designed to turn on and off rapidly, the IGBT can synthesize complex waveforms with pulse-width modulation and low-pass filters, so it is also used in switching ...
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Hitachi
() is a Japanese multinational corporation, multinational Conglomerate (company), conglomerate corporation headquartered in Chiyoda, Tokyo, Japan. It is the parent company of the Hitachi Group (''Hitachi Gurūpu'') and had formed part of the Nissan Group, Nissan ''zaibatsu'' and later DKB Group and Fuyo Group of companies before DKB and Fuji Bank (the core Fuyo Group company) merged into the Mizuho Financial Group. As of 2020, Hitachi conducts business ranging from Information technology, IT, including Artificial intelligence, AI, the Internet of things, Internet of Things, and big data, to infrastructure. Hitachi is listed on the Tokyo Stock Exchange and Nagoya Stock Exchange and its Tokyo listing is a constituent of the Nikkei 225 and TOPIX Core30 indices. It is ranked 38th in the 2012 Fortune Global 500 and 129th in the 2012 Forbes Global 2000. History Hitachi was founded in 1910 by electrical engineer Namihei Odaira (1874–1951) in Ibaraki Prefecture. The company's firs ...
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Stainless Steel
Stainless steel is an alloy of iron that is resistant to rusting and corrosion. It contains at least 11% chromium and may contain elements such as carbon, other nonmetals and metals to obtain other desired properties. Stainless steel's corrosion resistance, resistance to corrosion results from the chromium, which forms a Passivation (chemistry), passive film that can protect the material and self-healing material, self-heal in the presence of oxygen. The alloy's properties, such as luster and resistance to corrosion, are useful in many applications. Stainless steel can be rolled into Sheet metal, sheets, plates, bars, wire, and tubing. These can be used in cookware, cutlery, surgical instruments, major appliances, vehicles, construction material in large buildings, industrial equipment (e.g., in paper mills, chemical plants, water treatment), and storage tanks and tankers for chemicals and food products. The biological cleanability of stainless steel is superior to both alumi ...
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Northern Line (Sydney)
The Northern Line (numbered T9, coloured red) is a commuter rail line operated by Sydney Trains in Sydney, New South Wales, Australia. It serves some of Sydney's Inner West and Northern suburbs. It was spun off from the old T1 North Shore, Northern & Western Line as a separate line in April 2019, to distinguish and make it more easily identified from the other T1 services. It is also a reincarnation of the older Northern Line which was under operation until 2013. History Original incarnation (until 2013) The traditional Northern Line was the suburban portion of the Main North railway line (Strathfield - Hornsby) which opened in 1886 and was electrified in 1926. When the Sydney Harbour Bridge was opened, it connected railway services from the Main North line and the City underground onto the North Shore line. Passenger services used to operate as the Main North Line (same name as the physical railway line) and was colour coded red on railway maps. It operated all the way t ...
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