所谓电气传动,是指用电动机把电能转换成机械能,去带动各种类型的生产机械、交通车辆以及生活中需要运动的物品。自从人类发明并掌握各种机械帮助自己劳动以来,就需要有推动机械的原动力,除人力本身外,最初使用的是畜力、水力和风力,后来又发明了蒸汽机、柴油机、汽油机,19世纪 The so-called electric drive, is the use of electric motors to convert electrical energy into mechanical energy, to drive all types of production machinery, transport vehicles and the need to exercise in life items. Since mankind invented and mastered all kinds of machinery to help himself, there was a need for the prime mover for the machinery, except for manpower itself, which was first used in animal power, water power and wind power, and later in the steam engine, diesel engine, gasoline engine, 19th century