機(jī)械外文翻譯--世界電力機(jī)車的發(fā)展(存儲(chǔ)版)
【正文】 rectifier units, divided into two groups of six parallel to the traction motor DC supply concentrate to a traction motor torque, the mechanical energy into electric energy through the transmission geardriven lootive drive wheels turning. The development of electric lootives: The first to create the first standard gauge electric lootive is the Scots R Davidson, time is 1842. May 1879, the German Siemens W V design and manufacture of a 18 to pull on the three open passenger electric lootive, this is the first electric lootive successful pilot. 1881, Paris, France at the first of electricity from overhead wires tram lines, which for the upgrade, using highpower traction motors to create the conditions: 1895, the United States in Baltimore Ohio between km long tunnel section DC electrified railway construction. 1903 Germany39。s main heavyduty freight lootive. After the successful development of a succession SS5, SS6 and SS7 electric lootive. 1994 has succeeded in the development speed of 160 km of highspeed electric lootive, and other 4axis. World track for the new “paydirectdiplomacy” electric lootive new technology, from the late 1970s, China has been carrying out small and mediumsized railway power converter units on the ground and highpower test on the HandDirectAC electric lootive Research has also achieved initial success. Development of China39。s first electrified railway main lootive. 1966 SS2 lootive made in 1978 successfully developed SS3 lootive not only improved traction performance, also of the hours of lootive power from 200kW to a 4 kW 4800, deadline to the end of 1997, produced a total of 987, being the first Chinese two kinds of main electric lootive. 1985 also has succeeded in the development of SS4 8 axis freight electric lootive, it is China39。s weaknesses are catenary low voltage, typically l500V or 3000 V, the contact wire request is rough, it is necessary to consume a large amount of nonferrous metals, and increased construction investment. TAC DC electric lootive powered by AC system, most of the world39。在那個(gè)時(shí)候，鐵道部第三機(jī)車廠，即現(xiàn)在的株洲電力機(jī)車廠在協(xié)助湘潭電機(jī)采礦電力機(jī)車制造工廠的同時(shí)，設(shè)計(jì)和編制鐵路電力機(jī)車。不 僅使 SS3 型機(jī)車牽引性能改進(jìn)，而且每小時(shí)的機(jī)車功率從 200kW 至 4 千瓦，截止到 1997 年底，共生產(chǎn)了 987 列 ，成為第一次中國兩種主要的電力機(jī)車。 1979 年，第一高功率交流傳動(dòng) E120 電力機(jī)車誕生于德國，為發(fā)展電力機(jī)車創(chuàng)了一個(gè)新時(shí)代。英國是發(fā)展的原始柴油牽引的國家，但也開始重視發(fā)展電力牽引。 1903 年德國的三相交流電力機(jī)車創(chuàng)造了每小時(shí) 210 公里的高速記錄。這是失敗的電力機(jī)車，其主要的原因是提高速度相當(dāng)困難。直流系統(tǒng)的缺點(diǎn)是接觸網(wǎng)電壓低，通常 l500 伏或 3000 伏，接觸線要求較粗，因此要消耗大量的有色金屬，并增加建設(shè)投資。隨著電力機(jī)車功率，熱效率
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