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铁路是社会的基础设施,是国民经济的大动脉。建国以来,我国铁路事业虽然有了很大发展,但铁路运输能力的增加落后于国民经济的发展,特别是改革开放后,随着经济的持续发展,运能与运量的矛盾十分突出,铁路已经成为制约国民经济发展的突出薄弱环节。牵引动力是铁路运输业最重要的技术装备之一,以牵引性能好的电力、内燃牵引取代落后的蒸汽牵引,实现牵引动力的现代化,是铁路技术进步的带头领域,是缓解运输紧张状况的根本手段之一。
Railway is the social infrastructure, is the artery of the national economy. Since the founding of the People’s Republic of China, although great progress has been made in the railway industry in our country, the increase in the railway transport capacity has lagged behind the development of the national economy. Especially after the reform and opening up, with the continuous economic development, the contradiction between transport capacity and transport capacity has become very prominent. Has become a prominent weak link restricting the development of the national economy. Traction power is one of the most important technical equipment in the railway transportation industry. It takes the traction of good power and internal combustion traction to replace the backward steam traction to realize the traction power modernization, which is the leading field of railway technological progress and the basis of alleviating the tension of transportation One of the means.