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British Rail Class 385
The British Rail Class 385 ''AT200'' is a type of electric multiple unit built by Hitachi Rail for Abellio ScotRail. A total of 70 units have been built, divided into 46 three-car and 24 four-car sets. Based on the design of the Hitachi A-train, they are part of the Hitachi AT200 product family. The trains were built to operate services on newly electrified lines in the Central Belt on a mixture of both suburban and inter-urban routes. Having been ordered by Abellio ScotRail during April 2015, the first trainsets entered service during late July 2018. Their introduction was somewhat delayed due to the need for infrastructure works to be completed, as well as minor technical issues with the trainsets being uncovered. By December 2019, all 70 of the Class 385 trainsets had been delivered. Hitachi has proposed developing a battery electric multiple unit (BEMU) variant of the Class 385, allowing such a trainset to traverse lines that are not electrified at present. History In Octo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ScotRail
ScotRail Trains Limited, trading as ScotRail (), is a Scottish train operating company that is publicly owned by Scottish Rail Holdings on behalf of the Scottish Government. It has been operating the ScotRail franchise as an operator of last resort since 1 April 2022. History The ScotRail network had since 2015 been operated by the private-sector franchisee Abellio ScotRail. In December 2019, Transport Scotland announced Abellio had not met the performance criteria necessary to have its seven-year franchise extended for a further three years, and the franchise would conclude on 31 March 2022. In March 2021, Transport Scotland announced that the franchise would not be re-tendered for another private-sector operator to run, but would be operated by an operator of last resort owned by the Scottish Government. The move was welcomed by the ASLEF, RMT and TSSA unions. The then Minister for Transport, Jenny Gilruth, confirmed in February 2022 that ScotRail services would ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cathcart Circle Lines
The Cathcart Circle Lines form a mostly suburban railway line, railway route linking Glasgow (Central) to Cathcart via a circular line, with branches to Newton (Lanark) railway station, Newton and Neilston railway station, Neilston, on the south bank of the River Clyde. They are part of the Strathclyde Partnership for Transport, Strathclyde rail network. History The lines were built by the Cathcart District Railway (Cathcart Circle) and the Lanarkshire and Ayrshire Railway (Newton and Neilston lines). The first part opened on 1 March 1886 as a double line from Glasgow Central to then single to Cathcart, doubled on 26 May 1886. The circular route back to Central station via Shawlands and Maxwell Park was completed on 2 April 1894. The Newton and Neilston branches were built to provide a through route from the Lanarkshire coalfields to ports such as Ardrossan on the Ayrshire coast. There is still a junction with other lines at Newton, but the track beyond Neilston has been lifte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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. According to the UK Rail Safety and Standards Board, the purpose of TPWS is to stop a train by automatically initiating a brake demand, where TPWS track equipment is fitted, if the train has: passed a signal at danger without authority; approached a signal at danger too fast; approached a reduction in permissible speed too fast; approached buffer stops too fast. TPWS is not designed to prevent signals passed at danger (SPADs) but to mitigate the consequences of a SPAD, by preventing a train that has had a SPAD from reaching a conflict point after the signal. A standard installation consists of an on-track transmitter adjacent to a signal, activated when the signal is at danger. A train that passes the signal will have its emergency brake activated. If the train is travelling at speed, this may be too late to stop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automatic Warning System
Automatic Warning System (AWS) is a railway safety system invented and predominantly used in the United Kingdom. It provides a train driver with an audible indication of whether the next Railway_signal, signal they are approaching is clear or at caution. Depending on the upcoming signal state, the AWS will either produce a 'horn' sound (as a warning indication), or a 'bell' sound (as a clear indication). If the train driver fails to acknowledge a warning indication, an emergency brake application is initiated by the AWS; if the driver correctly acknowledges the warning indication, by pressing an acknowledgement button, then a visual 'sunflower' is displayed to the driver, as a reminder of the warning. Principles of operation AWS is a system based on trains detecting magnetic fields. These magnetic fields are created by permanent magnets and electromagnets installed on the track. The polarity and sequence of magnetic fields detected by a train determine the type of indication ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disc Brake
A disc brake is a type of brake that uses the #Calipers, calipers to squeeze pairs of #Brake pads, pads against a disc (sometimes called a [brake] rotor) to create friction. There are two basic types of brake pad friction mechanisms: abrasive friction and adherent friction. This action slows the rotation of a shaft, such as a vehicle axle, either to reduce its rotational speed or to hold it stationary. The energy of motion is converted into heat, which must be dissipated to the environment. Hydraulic brakes, Hydraulically Actuator, actuated disc brakes are the most commonly used mechanical device for slowing motor vehicles. The principles of a disc brake apply to almost any rotating shaft. The components include the disc, master cylinder, and caliper, which contain at least one cylinder and two Brake pad, brake pads on both sides of the rotating disc. Design The development of disc-type brakes began in England in the 1890s. In 1902, the Lanchester Motor Company designed bra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electro-pneumatic Brake System On British Railway Trains
The electro-pneumatic brake system on British mainline railway trains was introduced in 1950 and remains the primary braking system for multiple units in service today, although London Transport underground trains had been fitted with EP brakes since the 1920s. The Southern Region of British Railways operated a self-contained fleet of electric multiple units for suburban and middle-distance passenger trains. From 1950, an expansion of the fleet was undertaken and the new build adopted a braking system that was novel in the UK, the electro-pneumatic brake in which compressed air brake operation was controlled electrically by the driver. This was a considerable and successful technical advance, enabling a quicker and more sensitive response to the driver's operation of brake controls. Origins From the 1920s, the Southern Railway of the UK and its predecessor companies had adopted electrification and multiple-unit train operation as a solution for dense and intensive passenger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pantograph (rail)
A pantograph (or "pan" or "panto") is an apparatus mounted on the roof of an electric train, tram or trolley buses to collect power through contact with an overhead line. The term stems from the resemblance of some styles to the mechanical pantographs used for copying handwriting and drawings. 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. Other types of current collectors include the bow collector and the trolley pole. 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 p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overhead Line
An overhead line or overhead wire is an electrical cable that is used to transmit electrical energy to electric locomotives, Electric multiple unit, electric multiple units, trolleybuses or trams. The generic term used by the International Union of Railways for the technology is ''overhead line''. It is known variously as overhead catenary, overhead contact line (OCL), overhead contact system (OCS), overhead equipment (OHE), overhead line equipment (OLE or OHLE), overhead lines (OHL), overhead wiring (OHW), traction wire, and trolley wire. An overhead line consists of one or more wires (or Overhead conductor rail, rails, particularly in tunnels) situated over rail tracks, raised to a high electrical potential by connection to feeder stations at regularly spaced intervals along the track. The feeder stations are usually fed from a High voltage, high-voltage Electricity distribution, electrical grid. Overview Electric trains that collect their current from overhead lines use a de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insulated-gate Bipolar Transistor
An insulated-gate bipolar transistor (IGBT) is a three-terminal power semiconductor device primarily forming an electronic switch. It was developed to combine high efficiency with fast switching. It consists of four alternating layers (NPNP) that are controlled by a metal–oxide–semiconductor (MOS) gate structure. Although the structure of the IGBT is topologically similar to 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) for motor control in electric cars, trains, variable-speed refrigerators, and air conditioners, as well as lamp ballasts, arc-welding machines, photovoltaic and hybrid inverters, uninterruptible power supply systems (UPS), and induction stoves. Since it is designed to turn on and off rapidly, the IGBT can synthesize complex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dunbar Railway Station
Dunbar railway station serves the town of Dunbar in East Lothian, Scotland. It is located on the East Coast Main Line and is a two platform station. It is from and from . History The station, which was first opened by the North British Railway in June 1846, used to have two platforms and an overall roof. The northbound platform loop line was taken out of use and lifted in the early 1970s, whilst the platform itself and the station roof were both removed during the modernisation and electrification by British Rail of the northern end of the East Coast Main Line in 1987–88. For approximately five months in 1979, this was the terminal station for a shuttle service to Edinburgh Waverley. The shuttle service was provided after the East Coast Main Line was blocked due to the collapse of Penmanshiel Tunnel. Buses linked Dunbar with Berwick-upon-Tweed, from where rail services to London King's Cross resumed. Platform Layout The main platform (One) is located on a loop adjac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edinburgh Waverley Railway Station
Edinburgh Waverley (also known simply as Edinburgh; ) is the principal railway station serving Edinburgh, Scotland. It is the second busiest station in Scotland, after Glasgow Central. The station serves as the northern terminus of the East Coast Main Line, from , although some trains operated by London North Eastern Railway continue to other Scottish destinations beyond Edinburgh. History Origins Edinburgh's Old Town, perched on a steep-sided sloping ridge, was bounded on the north by a valley in which the Nor Loch had been formed. In the 1750s overcrowding led to proposals to link across this valley to allow development to the north. The "noxious lake" was to be narrowed into "a canal of running water", with a bridge formed across the east end of the loch adjacent to the physic garden. This link was built from 1766 as the North Bridge and at the same time plans for the New Town began development to the north, with Princes Street to get unobstructed views south over slopi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lanark Railway Station
Lanark railway station, managed by ScotRail, is the southern terminus of the Argyle Line on Bannatyne Street, Lanark, South Lanarkshire, Scotland. The station is staffed part-time. History Lanark station opened in 1855, as the terminus of a short branch line off the Caledonian Railway's West Coast Main Line. The branch had a triangular junction with the main line to allow trains from Lanark to head west towards or east to . The eastern curve closed in the 1960s. There was another triangular junction closer to Lanark station itself, and this is just north of the golf course and the embankments are still clearly visible. (summer 2017) These were the two curves leading from the Lanark branch towards Muirkirk and Ayrshire and Lanark racecourse halt of course. In 1864, a line south from Lanark to Douglas was opened, and in 1874 it was extended to in Ayrshire, where it formed an end-on junction with the Glasgow and South Western Railway, though that line closed in 1964. In 1974 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
