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Indian Locomotive Class WAG-6
The Indian locomotive class WAG-6A is a class of 25 kV AC electric locomotives that was developed in the 1988 by Allmänna Svenska Elektriska Aktiebolaget (ASEA) for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Goods (G) engine, 6th generation (6) First variant (A). They entered service in 1988. A total of 6 WAG-6A were built at ASEA, Sweden between 1987 and 1988. they were the most powerful locomotives in India until the arrival of the WAG-9 class. These locomotives are now withdrawn from service with 1 unit earmarked for preservation. History The history of WAG-6A begins in early 1980s with the aim of addressing the shortcomings of the previous WAG-1, WAG-2, WAG-3, WAG-4 and WAG-5 classes and remove steam locomotives from IR by a target date of 1990. The WAG-5 were a great successes but these locomotives were based on 1960s technology and fast became underpowered for the expanding Indian railways. So Indian Railways decided to look for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ASEA
''Allmänna Svenska Elektriska Aktiebolaget'' (English translation: General Swedish Electrical Limited Company; Swedish abbreviation: ASEA) was a Swedish industrial company. History ASEA was founded in 1883 by Ludvig Fredholm in Västerås as a manufacturer of electrical light and generators. After merging with Wenström's & Granström's Electrical Power Company (''Wenströms & Granströms Elektriska Kraftbolag'') the name was changed to ''Allmänna Svenska Elektriska Aktiebolaget'', literally the "General Swedish Electrical Limited Company", or a ''ASEA'' for short. In 1987, it announced a merger with the Swiss company Brown, Boveri & Cie (BBC) to form ABB Group. ABB Group began operations in 1988. After this merger, ABB Group acquired several companies, including the power transmission and distribution operations of the Westinghouse Electric Corporation and the Combustion Engineering Group. *1889 - the partner Jonas Wenström creates 3-phased generators, motors and transfor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian Locomotive Class WAG-3
The Indian locomotive class WAG-3 is a class of 25 kV AC electric locomotives that was imported from Europe in the mid 1960s for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Goods traffic (G) engine, 3rd (3). A total of 10 WAG-3 locomotives were built by The European Group 50 Hz Group/European Group/50 Cycles Group (consortium) in 1965. They entered service in 1965. The WAG-3 served mainly freight trains for over 35 years. As of January 2020, All locomotives have been removed from service all were scrapped. History Ten locomotives of this type were ordered from European Group. All these locomotives have been assembled in Europe. First locomotive was put in service in July, 1965. The typical feature of these locomotives is a Monomotor bogie. This construction results in substantial saving in weight in traction equipment and gives better adhesion. These locomotives utilize silicon rectifiers for conversion of ac power into dc. The traction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
5 Ft 6 In Gauge Locomotives
5 (five) is a number, numeral and digit. It is the natural number, and cardinal number, following 4 and preceding 6, and is a prime number. It has attained significance throughout history in part because typical humans have five digits on each hand. In mathematics 5 is the third smallest prime number, and the second super-prime. It is the first safe prime, the first good prime, the first balanced prime, and the first of three known Wilson primes. Five is the second Fermat prime and the third Mersenne prime exponent, as well as the third Catalan number, and the third Sophie Germain prime. Notably, 5 is equal to the sum of the ''only'' consecutive primes, 2 + 3, and is the only number that is part of more than one pair of twin primes, ( 3, 5) and (5, 7). It is also a sexy prime with the fifth prime number and first prime repunit, 11. Five is the third factorial prime, an alternating factorial, and an Eisenstein prime with no imaginary part and real part of the form 3p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locomotives Of India
The Indian Railways primarily operates fleet of electric and diesel locomotives, along with several compressed natural gas (CNG) locomotives. Steam locomotives are operated on a few World Heritage Sites and also run occasionally as heritage trains. A locomotive is also known as a loco or more popularly as an engine. The country's first steam locomotive ran on the Red Hill Railway (built by Arthur Cotton to transport granite for road-building) from Red Hills to the Chintadripet bridge in Madras in 1837. Classification Locomotives were classified by track gauge, motive power, function and power (or model number) in a four- or five-letter code. The first letter denotes the track gauge. The second letter denotes motive power (diesel or electric), and the third letter denotes use (goods, passenger, mixed or shunting). The fourth letter denotes a locomotive's chronological model number. In 2002, a new classification system was adopted. For newer diesel locomotives, the four ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rail Transport In India
Rail transport in India is an important mode of conveyance for people and goods in India. Indian Railways (IR) is the primary operator of rail operations throughout the country. IR is a state-owned organisation of the Ministry of Railways, which historically had its own government budget. Between 2019 and 2020, 22.15 million passengers used the Indian Railways network daily. In the same period, 3.32 million metric tons of freight was also shipped daily on the IR network. Other locally owned public corporations operate various suburban and urban railways throughout the country, such as Chennai Metro and the trams in Kolkata. Private sector operations currently exist only for freight trains and railroads, exclusively for non-passenger usage, but there were renewed efforts in 2020 to encourage private sector involvement in the running of passenger trains. In March 2020, the national rail network comprised of track over a route of and 7,325 stations. India's natio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visakhapatnam Railway Station
Visakhapatnam Junction railway station (station code: VSKP) is a major railway station located in Visakhapatnam, Andhra Pradesh, India. It is on the Howrah–Chennai main line It is operated by East coast Railway till now and it may take some time to administered under the South Coast Railway zone by Indian Railways. Originally named the Waltair railway station, it was founded in 1896. In 1987, it was renamed Visakhapatnam. History From 1893–1896, of track, covering the coast from to Vijayawada, were built by Bengal Nagpur Railway (later South Eastern Railway). The station was founded as Waltair railway station in 1896, and Bengal Nagpur Railway's line to Cuttack was opened on 1 January 1899. In 1902, the company took over the -long northern portion of the East Coast line to Cuttack, including the branch line to . The southern part was subsequently merged with Madras and Southern Mahratta Railway. In 1987, Mayor of Visakhapatnamas D. V. Subbarao renamed the station "Vi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Coast Railway Zone
The East Coast Railway (abbreviated ECoR) is one of the 19 railway zones of Indian Railways. It came into existence on 1 April 2003. The headquarters of the zone are at Bhubaneswar, Odisha History Consequent upon the parliament's approval, East Coast Railway was the first of the seven new zones to be inaugurated by the then Prime Minister of India H. D. Deve Gowda on 8 August 1996. The Officer-on-Special Duty took over charge of the newly declared Zone on 16 September 1996. Initially, only one division namely Khurda Road was attached to this railway. Subsequently, the zone became fully operational on 1 April 2003. The Waltair division was notified to be bifurcated from the East Coast Railway zone on 27 February 2019. The Odisha section of Waltair division will constitute the new Rayagada division, while the Andhra Pradesh section will be a part of the South Coast Railway zone upon operationalization. Divisions The geographical jurisdiction of East Coast Railway zone extends o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allmänna Svenska Elektriska Aktiebolaget
''Allmänna Svenska Elektriska Aktiebolaget'' (English translation: General Swedish Electrical Limited Company; Swedish abbreviation: ASEA) was a Swedish industrial company. History ASEA was founded in 1883 by Ludvig Fredholm in Västerås as a manufacturer of electrical light and generators. After merging with Wenström's & Granström's Electrical Power Company (''Wenströms & Granströms Elektriska Kraftbolag'') the name was changed to ''Allmänna Svenska Elektriska Aktiebolaget'', literally the "General Swedish Electrical Limited Company", or a ''ASEA'' for short. In 1987, it announced a merger with the Swiss company Brown, Boveri & Cie (BBC) to form ABB Group. ABB Group began operations in 1988. After this merger, ABB Group acquired several companies, including the power transmission and distribution operations of the Westinghouse Electric Corporation and the Combustion Engineering Group. *1889 - the partner Jonas Wenström creates 3-phased generators, motors and transfor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ministry Of Railways (India)
The Ministry of Railways is a ministry in the Government of India, responsible for the country's rail transport. The ministry operates the statutory body Indian Railways, an organisation that operates as a monopoly in rail transport and is headed by the Chairman and CEO of Railway Board. The Ministry of Railways along with the Railway Board is housed inside Rail Bhawan in New Delhi. Organisational structure The ministry has a Union Minister and Minister of State. A number of directorates report to the Railway Board. Most of the officers posted in Ministry of Railways are either from organised "Group A Railway services" or the Railway Board Secretariat Service. Indian Railways The statutory body known as the Indian Railways, which reports to parliament and is under the ownership of ''Ministry of Railways'' of the Government of India. The Indian Railway Board comprises one Chairman, seven "members of the Railway Board", and a Financial Commissioner (who is the represent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Three-phase Electric Power
Three-phase electric power (abbreviated 3φ) is a common type of alternating current used in electricity generation, transmission, and distribution. It is a type of polyphase system employing three wires (or four including an optional neutral return wire) and is the most common method used by electrical grids worldwide to transfer power. Three-phase electrical power was developed in the 1880s by multiple people. Three-phase power works by the voltage and currents being 120 degrees out of phase on the three wires. As an AC system it allows the voltages to be easily stepped up using transformers to high voltage for transmission, and back down for distribution, giving high efficiency. A three-wire three-phase circuit is usually more economical than an equivalent two-wire single-phase circuit at the same line to ground voltage because it uses less conductor material to transmit a given amount of electrical power. Three-phase power is mainly used directly to power large induction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thyristor
A thyristor () is a solid-state semiconductor device with four layers of alternating P- and N-type materials used for high-power applications. It acts exclusively as a bistable switch (or a latch), conducting when the gate receives a current trigger, and continuing to conduct until the voltage across the device is reversed biased, or until the voltage is removed (by some other means). There are two designs, differing in what triggers the conducting state. In a three-lead thyristor, a small current on its Gate lead controls the larger current of the Anode to Cathode path. In a two-lead thyristor, conduction begins when the potential difference between the Anode and Cathode themselves is sufficiently large (breakdown voltage). Some sources define silicon-controlled rectifier (SCR) and thyristor as synonymous. Other sources define thyristors as more complex devices that incorporate at least four layers of alternating N-type and P-type substrate. The first thyristor devices were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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