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Gracefield Branch
The Gracefield Branch is a 1.6 km long, gauge industrial line from its junction with the Wairarapa Line at Woburn in the Wellington region of New Zealand's North Island to its terminus at the southern end of the Hutt Workshops yard. The line formerly included an additional kilometre of track to Gracefield Freight Terminal, where it connected to a network of industrial sidings in nearby Seaview. Currently its only function is to provide access to the Hutt Workshops. The line has been known by several names, including Hutt Park Line (1937), Hutt Industrial Line (1937), Gracefield Branch (1986), Gracefield Industrial Line (2001) and Gracefield Industrial Siding (2006). Its 1937 name led to confusion with the earlier Hutt Park Railway. History Planning for the Gracefield Branch was included in surveys done for the Hutt Valley Branch line in 1924 and 1925. The line was intended to serve an area of 80 acres (32 ha) that had been purchased for the establishment of new r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rail Siding
A siding, in rail terminology, is a low-speed track section distinct from a running line or through route such as a main line, branch line, or spur. It may connect to through track or to other sidings at either end. Sidings often have lighter rails, meant for lower speed or less heavy traffic, and few, if any, signals. Sidings connected at both ends to a running line are commonly known as loops; those not so connected may be referred to as single-ended or dead-end sidings, or (if short) stubs. Functions Sidings may be used for marshalling (classifying), stabling, storing, loading, and unloading vehicles. Common sidings store stationary rolling stock, especially for loading and unloading. Industrial sidings (also known as spurs) go to factories, mines, quarries, wharves, warehouses, some of them are essentially links to industrial railways. Such sidings can sometimes be found at stations for public use; in American usage these are referred to as team tracks (after the use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seaview, Lower Hutt
Seaview is an industrial suburb of the city of Lower Hutt, itself a suburban area of greater Wellington. Situated on the eastern coast of the Hutt Valley, it curves between Te Awa Kairangi / the Hutt River and Petone (to the west), and the bays of Eastbourne to the south. Traditionally a very industrial suburb, an annex of the larger neighbouring Petone, Seaview has undergone rejuvenation as the local car-industry has died out. Known for boganesque motor-racing, sultry weather, its former car-industry and current revitalisation, the suburb has made a name for itself in Wellington in recent years. History and Culture Seaview's history is generally not as well known in Wellington, as it is a small suburb with a history of industry rather than innovation and creativity. The area was prosperous for a period of time during precolonisation; the local Māori iwi, Te Ati Awa, had a village here called Owhiti. It was based on the riches of the Waiwhetu river, which was navigab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Multiple Unit
An electric multiple unit or EMU is a multiple-unit train consisting of self-propelled carriages using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a number of the carriages. An EMU is usually formed of two or more semi-permanently coupled carriages, but electrically powered single-unit railcars are also generally classed as EMUs. The great majority of EMUs are passenger trains, but versions also exist for carrying mail. EMUs are popular on commuter and suburban rail networks around the world due to their fast acceleration and pollution-free operation. Being quieter than diesel multiple units (DMUs) and locomotive-hauled trains, EMUs can operate later at night and more frequently without disturbing nearby residents. In addition, tunnel design for EMU trains is simpler as no provision is needed for exhausting fumes, although retrofitting existing limited-clearance tunnels to accommodate the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NZR DM Class
The New Zealand DM/D class electric multiple unit (also known as English Electrics) were a type of electric multiple units used on the suburban rail network of Wellington, New Zealand. Formed of DM power cars and D trailer cars, the first units were ordered from English Electric in 1936 and introduced on 2 July 1938 operating the electrified Johnsonville Line service. Additional units were ordered in 1942 for the line, and in 1946 as the other Wellington suburban lines were to be electrified. The units were relegated to peak services and the Johnsonville Line after the arrival of the "Ganz-Mavag" EM/ET units in 1982–83, before finally being replaced by the "Matangi" FP/FT units in 2011–12. The units operated their last revenue service on 25 June 2012, from Wellington to Melling and return. Five complete units (four two-car and one three-car) and six trailer cars have been preserved. Introduction Following its decision to build the Tawa Flat deviation to replace the or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Locomotive
A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam. It is fuelled by burning combustible material (usually coal, oil or, rarely, wood) to heat water in the locomotive's boiler to the point where it becomes gaseous and its volume increases 1,700 times. Functionally, it is a steam engine on wheels. In most locomotives, the steam is admitted alternately to each end of its cylinders, in which pistons are mechanically connected to the locomotive's main wheels. Fuel and water supplies are usually carried with the locomotive, either on the locomotive itself or in a tender coupled to it. Variations in this general design include electrically-powered boilers, turbines in place of pistons, and using steam generated externally. Steam locomotives were first developed in the United Kingdom during the early 19th century and used for railway transport until the middle of the 20th century. Richard Trevithick ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gracefield Branch 04
Gracefield may refer to: Places *Gracefield, Quebec, a town in Canada *Gracefield, New Zealand, a suburb of Lower Hutt City * Gracefield Island, Nigeria Other *Gracefield Arts Centre, a gallery in Dumfries, Scotland *Gracefield Branch The Gracefield Branch is a 1.6 km long, gauge industrial line from its junction with the Wairarapa Line at Woburn in the Wellington region of New Zealand's North Island to its terminus at the southern end of the Hutt Workshops yard. Th ..., a section of railway line in Lower Hutt, New Zealand *Gracefield GAA, GAA Club representing the Offaly side of Portarlington See also * Grace Field, Australian football player {{disambig, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gracefield Branch 03
Gracefield may refer to: Places *Gracefield, Quebec, a town in Canada *Gracefield, New Zealand, a suburb of Lower Hutt City * Gracefield Island, Nigeria Other *Gracefield Arts Centre, a gallery in Dumfries, Scotland *Gracefield Branch, a section of railway line in Lower Hutt, New Zealand *Gracefield GAA Gracefield GAA ( ga, Pairc de Grás) is a Gaelic football and ladies' Gaelic football club in Gracefield, County Offaly, Ireland. Their most notable period was in 1970, when they won the Leinster Senior Club Football Championship. Honours *Le ..., GAA Club representing the Offaly side of Portarlington See also * Grace Field, Australian football player {{disambig, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand Railway And Locomotive Society
The New Zealand Railway and Locomotive Society Inc is a society of railway enthusiasts, based in Wellington. It was incorporated in 1958. The society archives are in the ''Thomas McGavin Building'' on Ava railway station's former goods yard in the Hutt Valley. At one time an old railway carriage held at the Ngaio railway station was used. Publications The society publishes a magazine, the ''New Zealand Railway Observer'' (), that was first published by the New Zealand Railway Correspondence Society on a Gestetner The Gestetner is a type of duplicating machine named after its inventor, David Gestetner (18541939). During the 20th century, the term ''Gestetner'' was used as a verb—as in ''Gestetnering''. The Gestetner company established its base in London ... in 1944, and a newsletter ''Turntable''. The society publishes books on railway subjects. There are currently about 25 books available, as listed on the website. Most are about New Zealand railways, but there is a book ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Electrification System
A railway electrification system supplies electric power to railway trains and trams without an on-board prime mover or local fuel supply. Electric railways use either electric locomotives (hauling passengers or freight in separate cars), electric multiple units (passenger cars with their own motors) or both. Electricity is typically generated in large and relatively efficient generating stations, transmitted to the railway network and distributed to the trains. Some electric railways have their own dedicated generating stations and transmission lines, but most purchase power from an electric utility. The railway usually provides its own distribution lines, switches, and transformers. Power is supplied to moving trains with a (nearly) continuous conductor running along the track that usually takes one of two forms: an overhead line, suspended from poles or towers along the track or from structure or tunnel ceilings, or a third rail mounted at track level and contacted by a s ... [...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, 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Direct Current
Direct current (DC) is one-directional flow of electric charge. An electrochemical cell is a prime example of DC power. Direct current may flow through a conductor such as a wire, but can also flow through semiconductors, insulators, or even through a vacuum as in electron or ion beams. The electric current flows in a constant direction, distinguishing it from alternating current (AC). A term formerly used for this type of current was galvanic current. The abbreviations ''AC'' and ''DC'' are often used to mean simply ''alternating'' and ''direct'', as when they modify ''current'' or ''voltage''. Direct current may be converted from an alternating current supply by use of a rectifier, which contains electronic elements (usually) or electromechanical elements (historically) that allow current to flow only in one direction. Direct current may be converted into alternating current via an inverter. Direct current has many uses, from the charging of batteries to large power sup ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Voltage
Voltage, also known as electric pressure, electric tension, or (electric) potential difference, is the difference in electric potential between two points. In a static electric field, it corresponds to the work needed per unit of charge to move a test charge between the two points. In the International System of Units, the derived unit for voltage is named ''volt''. The voltage between points can be caused by the build-up of electric charge (e.g., a capacitor), and from an electromotive force (e.g., electromagnetic induction in generator, inductors, and transformers). On a macroscopic scale, a potential difference can be caused by electrochemical processes (e.g., cells and batteries), the pressure-induced piezoelectric effect, and the thermoelectric effect. A voltmeter can be used to measure the voltage between two points in a system. Often a common reference potential such as the ground of the system is used as one of the points. A voltage can represent either a source ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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