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China Railways Ss1
The Shaoshan 1 ( Nickname: ) is a type of AC-powered electric locomotive used by China Railway. This locomotive was the first Chinese electric main line locomotive, built by the Zhuzhou Electric Locomotive Works with the assistance of the Soviet Union and following the design of the Soviet-H60 electric locomotive (SŽD VL60). The power supply was industrial-frequency single-phase AC, and the axle arrangement Co-Co. History The first prototype locomotive, 6Y1-001, which used an ignitron-controlled rectifier, was produced in 1958. A further 6 prototypes (002 to 007) were produced between 1962 and 1966. A silicon semiconductor-controlled rectifier was used from No. 004 onwards. In response to technology of the French-made 6Y2 locomotive, Zhuzhou Plant made major modification in the design of the 6Y1 locomotive, improving the reliability of the rectifier, traction motors and rheostatic braking system. The eighth locomotive, No. 008, was produced in 1968. The series was also renamed f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zhuzhou Electric Locomotive Works
CRRC Zhuzhou Locomotive Co., Ltd. is one of the electric locomotive manufacturers in China. It is one of the subsidiaries of CRRC. History Predecessor Zhuzhou Electric Locomotive Works was founded in 1936. CRRC Zhuzhou Locomotive Co., Ltd. On 31 August 2005, CSR Group Zhuzhou Electric Locomotive Co., Ltd. was spin-off from the locomotive works; the original legal entity of the locomotive works became an intermediate holding company for CSR Group only. After the formation of the listed company CSR Corporation Limited, the limited company "CSR Group Zhuzhou Electric Locomotive" became part of the listed portion of the group, and the intermediate holding company remained unlisted. The limited company also renamed to CSR Zhuzhou Electric Locomotive Co., Ltd.. In 2015 the company was renamed into CRRC Zhuzhou Locomotive Co., Ltd. (). Subsidiaries * CRRC Kuala Lumpur Maintenance Sdn Bhd (Formerly known as CSR Kuala Lumpur Maintenance Sdn Bhd) * Vossloh Rolling Stock Gm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mao Zedong
Mao Zedong pronounced ; traditionally Romanization of Chinese, romanised as Mao Tse-tung. (26December 18939September 1976) was a Chinese politician, revolutionary, and political theorist who founded the People's Republic of China (PRC) in 1949 and led the country from Proclamation of the People's Republic of China, its establishment until Death and state funeral of Mao Zedong, his death in 1976. Mao served as Chairman of the Chinese Communist Party (CCP) from 1943 until his death, and as the party's ''de facto'' leader from 1935. His theories, which he advocated as a Chinese adaptation of Marxism–Leninism, are known as Maoism. Born to a peasant family in Shaoshan, Hunan, Mao studied in Changsha and was influenced by the 1911 Revolution and ideas of Chinese nationalism and anti-imperialism. He was introduced to Marxism while working as a librarian at Peking University, and later participated in the May Fourth Movement of 1919. In 1921, Mao became a founding member of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zhuzhou Locomotives
Zhuzhou ( zh, c=株洲, p=Zhūzhōu, ), formerly Jianning (建宁), is a prefecture-level city of Hunan Province, China, straddling the Xiang River southeast of the provincial capital, Changsha, and bordering Jiangxi province to the east. It is part of the " Greater Changsha Metropolitan Region, also known as Changzhutan Golden Triangle" (comprising the cities of Changsha, Zhuzhou and Xiangtan). The city has jurisdiction over five counties ( Yanling, Chaling, Youxian, Liling, Zhuzhou) and four districts (Hetang, Lusong, Shifeng and Tianyuan, a high-tech industrial development zone), and covers an area of . , Zhuzhou had 3,871,100 inhabitants, of whom 1,055,373 lived in the built-up area (''4 urban districts''). With Xiangtan areas adjoining Zhuzhou due to be agglomerated in a few years' time, the joint built-up area will be home to 2,933,069 inhabitants. Zhuzhou is located in a subtropical monsoon climate zone and with its abundant mineral and organic resources has one of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Locomotives Of China
Electricity is the set of physical phenomena associated with the presence and motion of matter possessing an electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations. Common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others. The presence of either a positive or negative electric charge produces an electric field. The motion of electric charges is an electric current and produces a magnetic field. In most applications, Coulomb's law determines the force acting on an electric charge. Electric potential is the Work (physics), work done to move an electric charge from one point to another within an electric field, typically measured in volts. Electricity plays a central role in many modern technologies, serving in electric power where electric current is used to energise equipment, and in electronics dealing w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Co′Co′ Locomotives
Co-Co is the wheel arrangement for Diesel locomotive, diesel and electric locomotives with two six-wheeled bogies with all axles powered, with a separate traction motor per axle. The equivalent UIC classification of locomotive axle arrangements, UIC classification (Europe) for this arrangement is Co′Co′, or C-C for AAR wheel arrangement#C-C, AAR (North America). Use Co-Cos are most suited to freight work as the extra wheels give them good Traction (engineering), traction. They are also popular because the greater number of axles results in a lower axle load to the track. History The first mainline diesel-electric locomotives were of Bo-Bo arrangement. As they grew in power and weight, from 1937 the EMD E-units used an A1A-A1A layout with six axles to reduce axle load. After WWII, the British London, Midland and Scottish Railway, LMS ordered British Rail Class D16/1, two prototype locomotives with some of the first Co-Co arrangements. The first C-C design recorded w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
25 KV AC 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. Humans, and many other animals, have 5 digits on their limbs. Mathematics 5 is a Fermat prime, a Mersenne prime exponent, as well as a Fibonacci number. 5 is the first congruent number, as well as the length of the hypotenuse of the smallest integer-sided right triangle, making part of the smallest Pythagorean triple ( 3, 4, 5). 5 is the first safe prime and the first good prime. 11 forms the first pair of sexy primes with 5. 5 is the second Fermat prime, of a total of five known Fermat primes. 5 is also the first of three known Wilson primes (5, 13, 563). Geometry A shape with five sides is called a pentagon. The pentagon is the first regular polygon that does not tile the plane with copies of itself. It is the largest face any of the five regular three-dimensional regular Platonic solid can have. A conic is determine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southwest Jiaotong University
Southwest Jiaotong University (SWJTU; ) is a national public science and engineering university in Chengdu, Sichuan, China. The university is affiliated with the Ministry of Education. It is a national key university co-sponsored by the Ministry of Education, China Railway Corporation, the Sichuan Provincial Government, and the Chengdu Municipal Government. The university is part of Project 211 and the Double First-Class Construction. SWJTU was founded in 1896 and is one of China 's leading engineering universities. Known as the cradle of China's railway engineers, SWJTU is the birthplace of China's modern education in transportation, mining and metallurgy, and civil engineering. Through its history, the university has adopted different names such as “Imperial Chinese Railway College,” “Tangshan Jiaotong University,” and “Tangshan Institute of Railway.” SWJTU is consistently ranked as one of the top universities in China, placing 181-190 in The ''Times Higher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Railway Museum
The China Railway Museum () is a Chinese museum preserving locomotives that have operated on the railways of the People's Republic of China. The museum offers a total exhibition space of and eight exhibition tracks. The museum is located in Chaoyang District, Beijing, Chaoyang District of Beijing, some northeast of downtown Beijing, inside the circular test track that is part of the . It also has a branch in downtown Beijing, in the former Zhengyangmen East Railway Station near Tian'anmen Square. History The China Railway Museum has its origins in the 1950s when the Ministry of Railways (China), Ministry of Railways (MOR) created a temporary exhibit for the Economic Achievements Exhibition in Beijing. This exhibition, which was held by the National Economic Development Committee, celebrated the 10th anniversary of the establishment of the China, People's Republic of China. The MOR then founded the Central Technical Library in 1958 to promote scientific and technological adv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shaoshan
Shaoshan () is a county-level city in Hunan Province, China. It is under the administration of the prefecture-level city of Xiangtan. Qingxi Town is its seat. Located on the mid-eastern Hunan and the mid-north of Xiangtan, Shaoshan is bordered by Ningxiang County to the north, Xiangxiang City to the west and southwest, Xiangtan County to the east and southeast. It covers an area of , as of 2015, it has a census registered population of 118,236 and a permanent resident population of 97,800. oxiangtan.gov.cn/ref> It is the smallest administrative unit by size or by population in the counties and county-level cities in Hunan province. As the birthplace of Mao Zedong, the founder of the People's Republic of China, Shaoshan was an important base during the Chinese Communist Revolution. Mao remains a popular figure in the area, and red tourism to Shaoshan and other places related to China's communist background has driven the local economy and increased people's understanding of C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
25 KV 50 Hz AC
Railway electrification systems using alternating current (AC) at are used worldwide, especially for high-speed rail. It is usually supplied at the standard utility frequency (typically 50 or 60Hz), which simplifies traction substations. The development of 25kV AC electrification is closely connected with that of successfully using utility frequency. This electrification is ideal for railways that cover long distances or carry heavy traffic. After some experimentation before World War II in Hungary and in the Black Forest in Germany, it came into widespread use in the 1950s. One of the reasons it was not introduced earlier was the lack of suitable small and lightweight control and rectification equipment before the development of solid-state rectifiers and related technology. Another reason was the increased clearance required under bridges and in tunnels, which would have required major civil engineering in order to provide the increased clearance to live parts. Where existin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rectifier
A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as ''rectification'', since it "straightens" the direction of current. Physically, rectifiers take a number of forms, including Vacuum tube#Diodes, vacuum tube diodes, wet chemical cells, mercury-arc valves, stacks of copper and selenium rectifier, selenium oxide plates, Diode#Semiconductor diodes, semiconductor diodes, silicon-controlled rectifiers and other silicon-based semiconductor switches. Historically, even synchronous electromechanical switches and motor-generator sets have been used. Early radio receivers, called crystal radios, used a "Crystal detector#Cat whisker detector, cat's whisker" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a point-contact rectifier or "crystal detector". Rectifiers have many uses, but are often found serving as component ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ignitron
An ignitron is a type of gas-filled tube used as a controlled rectifier and dating from the 1930s. Invented by Joseph Slepian while employed by Westinghouse Electric Corporation, Westinghouse, Westinghouse was the original manufacturer and owned trademark rights to the name "Ignitron". Ignitrons are closely related to mercury-arc valves but differ in the way the arc is ignited. They function similarly to thyratrons; a triggering pulse to the igniter electrode turns the device "on", allowing a high current to flow between the cathode and anode electrodes. After it is turned on, the current through the anode must be reduced to zero to restore the device to its nonconducting state. They are used to switch high currents in heavy industrial applications. Construction and operation An ignitron is usually a large steel container with a pool of mercury (element), mercury in the bottom that acts as a cathode during operation. A large graphite or refractory metals, refractory metal cylind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
