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WDG-4D
The Indian locomotive class WDG-4 (EMD GT46MAC) is a freight-hauling diesel-electric locomotive with AC electric transmission designed by General Motors Electro-Motive Diesel in 1997–1998 for Indian Railways, where they are classed as WDG-4. Thirteen were built by EMD as order #958647, and a further eight were exported in kit form and assembled in India. The class entered service in 1999. Further construction has been under license in India by the Banaras Locomotive Works (BLW); more than 60 additional locomotives have been built . They are numbered from #12001 upward. A similar type, the EMD GT46PAC, has also been produced for passenger service in India. , EMD and DLW have begun building GT46ACe's using IGBT technology to replace the older gate turn-off thyristor technology and along with increase of 500 HP, ie, , using the Newly tweaked EMD 16N-710G3B-EC, like the Passenger WDP-4B have been produced. Newer versions with widened ''Piggy-face'' cab profile for enhanced v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EMD 710
The EMD 710 is a line of diesel engines built by Electro-Motive Diesel (previously General Motors' Electro-Motive Division). The 710 series replaced the earlier EMD 645 series when the 645F series proved to be unreliable in the early 1980s 50-series locomotives which featured a maximum engine speed of 950 rpm.40-series versions of the 645, save the initial teething problems with the 20-645E, which were eventually resolved, proved to be exceptionally reliable. The EMD 710 is a relatively large medium-speed two-stroke diesel engine that has displacement per cylinder, and a maximum engine speed of 900 rpm.Same parts suitable for 1000 rpm speed, yet rated lower because of earlier problems in EMD 645. Factory-fitted governor limits to 900 rpm. In 1951, E. W. Kettering wrote a paper for the ASME entitled, ''History and Development of the 567 Series General Motors Locomotive Engine'', which goes into great detail about the technical obstacles that were encountered during the developmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Air Brake
A railway air brake is a railway brake power braking system with compressed air as the operating medium. Modern trains rely upon a fail-safe air brake system that is based upon a design patented by George Westinghouse on April 13, 1869. The Westinghouse Air Brake Company was subsequently organized to manufacture and sell Westinghouse's invention. In various forms, it has been nearly universally adopted. The Westinghouse system uses air pressure to charge air reservoirs (tanks) on each car. Full air pressure causes each car to release the brakes. A subsequent reduction or loss of air pressure causes each car to apply its brakes, using the compressed air stored in its reservoirs. Overview Straight air brake In the air brake's simplest form, called the ''straight air system'', compressed air pushes on a piston in a cylinder. The piston is connected through mechanical linkage to brake shoes that can rub on the train wheels, using the resulting friction to slow the train. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Railway Zone
Central Railway (abbreviated CR) is one of the 19 zones of Indian Railways. Its headquarters is in Mumbai at Chhatrapati Shivaji Maharaj Terminus. It has the distinction of operating the first passenger railway line in India, which opened from Mumbai to Thane on . History The railway zone was formed on 5 November 1951 by grouping several government-owned railways, including the Great Indian Peninsula Railway, the Scindia State Railway of the former princely state of Gwalior, Nizam State Railway, Wardha Coal State Railway and the Dholpur Railways.Rao, M.A. (1988). ''Indian Railways'', New Delhi: National Book Trust, p.42 The Central Railway zone formerly included large parts of Madhya Pradesh and part of southern Uttar Pradesh, which made it the largest railway zone in India in terms of area, track mileage and staff. These areas became the new West Central Railway zone in April 2003. The Central Railway General Manager's official residence (erstwhile GIPR agent's residence), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karthi
Karthik Sivakumar (born 25 May 1977), better known by his stage name Karthi, is an Indian actor who works predominantly in Tamil cinema. He has won three Filmfare Awards South, an Edison Award, a SIIMA Award and a Tamil Nadu State Film Award. The younger brother of actor Suriya and the youngest son of actor Sivakumar, Karthi initially joined Mani Ratnam as an assistant director. He was offered acting roles and made his acting debut in '' Paruthiveeran'' in 2007, which garnered critical acclaim and several accolades including the Filmfare Award for Best Actor. His next project was that of the lead role in '' Aayirathil Oruvan'' (2010), an action-adventure film directed by Selvaraghavan. He achieved consecutive commercial successes with his subsequent releases – '' Paiyaa'' (2010), '' Naan Mahaan Alla'' (2010) and ''Siruthai'' (2011). After appearing in a series of box office flops, he starred in successful films such as '' Madras'' (2014), '' Thozha'' (2016), '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bhagat Ki Kothi
Bhagat Ki Kothi is a place in Rajasthan, near Jodhpur. Bhagat Ki Kothi is famous for the Thar Express. This station connects India and Karachi, Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 .... It is also famous for the Taj Hotel and the Lahariya Sweet Home. Bhagat Ki Kothi is home to one of the largest diesel locomotive sheds of western India. In railway communications it is abbreviated as BGKT. {{Rajasthan-geo-stub Jodhpur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theeran Adhigaaram Ondru
''Theeran Adhigaaram Ondru'' () or simply ''Theeran'' is a 2017 Indian Tamil-language action thriller film written and directed by H. Vinoth and produced by S. R. Prakashbabu and S. R. Prabhu under the banner Dream Warrior Pictures. Based on the incidents from the Operation Bawaria case, it depicts the nefarious activity of dacoits and its eventual containment with the Tamil Nadu Police squad headlined by DGP S. R. Jangid. The film stars Karthi, in the titular character Theeran, modelled on Jangid, alongside Rakul Preet Singh and Abhimanyu Singh, who plays the main antagonist. Vinoth had planned for the script based on the incident even before his debut film ''Sathuranga Vettai'' (2014), but he later worked on the project in late-2014. To research further, he had met many police officers who handled the similar cases. Following an official announcement in December 2016, principal photography commenced in January 2017 and ended that July. Filming took place in many real loca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tamil Language
Tamil (; ' , ) is a Dravidian language natively spoken by the Tamil people of South Asia. Tamil is an official language of the Indian state of Tamil Nadu, the sovereign nations of Sri Lanka and Singapore, and the Indian territory of Puducherry. Tamil is also spoken by significant minorities in the four other South Indian states of Kerala, Karnataka, Andhra Pradesh and Telangana, and the Union Territory of the Andaman and Nicobar Islands. It is also spoken by the Tamil diaspora found in many countries, including Malaysia, Myanmar, South Africa, United Kingdom, United States, Canada, Australia and Mauritius. Tamil is also natively spoken by Sri Lankan Moors. One of 22 scheduled languages in the Constitution of India, Tamil was the first to be classified as a classical language of India. Tamil is one of the longest-surviving classical languages of India.. "Tamil is one of the two longest-surviving classical languages in India" (p. 7). A. K. Ramanujan described it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WDP-4D
The EMD GT46PAC or WDP4 is a passenger-hauling diesel-electric locomotive with AC electric transmission designed by General Motors Electro-Motive Division and built by both GM-EMD and under license by Banaras Locomotive Works (BLW) of Varanasi, India for Indian Railways as the classes WDP4, WDP4B and WDP4D. The GT46PAC is a passenger version of the previous Indian Railways EMD GT46MAC freight locomotive. The locomotive has a 16-cylinder 710G3B diesel engine and is one of the fastest diesel-electric locomotives in service in Indian Railways. Variants WDP-4 The WDP-4 was the loco originally designed by GM EMD and 10 of them were dispatched to India by June 2001. Later on Banaras Locomotive Works, Varanasi started building them initially using knocked-down kits and later indigenously. Starting 2003, the locomotives were produced in large numbers by BLW. The locomotive features self diagnostics control using EM2000 onboard microprocessor which was a new technology for Indian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WDP-4B
The EMD GT46PAC or WDP4 is a passenger-hauling diesel-electric locomotive with AC electric transmission designed by General Motors Electro-Motive Division and built by both GM-EMD and under license by Banaras Locomotive Works (BLW) of Varanasi, India for Indian Railways as the classes WDP4, WDP4B and WDP4D. The GT46PAC is a passenger version of the previous Indian Railways EMD GT46MAC freight locomotive. The locomotive has a 16-cylinder 710G3B diesel engine and is one of the fastest diesel-electric locomotives in service in Indian Railways. Variants WDP-4 The WDP-4 was the loco originally designed by GM EMD and 10 of them were dispatched to India by June 2001. Later on Banaras Locomotive Works, Varanasi started building them initially using knocked-down kits and later indigenously. Starting 2003, the locomotives were produced in large numbers by BLW. The locomotive features self diagnostics control using EM2000 onboard microprocessor which was a new technology for Indian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gate Turn-off Thyristor
A gate turn-off thyristor (GTO) is a special type of thyristor, which is a high-power (.e.g. 1200V AC) semiconductor device. It was invented by General Electric. GTOs, as opposed to normal thyristors, are fully controllable switches which can be turned on and off by their gate lead. Device description Normal thyristors ( silicon-controlled rectifiers) are not fully controllable switches (a "fully controllable switch" can be turned on and off at will). Thyristors can only be turned on using the gate lead, but cannot be turned off using the gate lead. Thyristors are switched on by a gate signal, but even after the gate signal is de-asserted (removed, reverse biased), the thyristor remains in the on state until a turn-off condition occurs (which can be the application of a reverse voltage to the terminals or a decrease of the forward current below a certain threshold value known as the "holding current"). Thus, a thyristor behaves like a normal semiconductor diode after it is turn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IGBT
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 switchi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
