1927年秋季的一天,24岁的麻省理工学院电子工程专业的毕业生哈罗德·E·艾格登正在做一项关于电动系统稳定性的实验,该实验是为了弄清电动机部件在遭到诸如闪电袭击输电线路后会产生什么影响。在实验中,他使用一个水银弧光整流器,把发动机的电流从交流电转换成直流电并使输送给发生器的电流产 One day in the fall of 1927, Harold E. Engelden, a 24-year-old Massachusetts Institute of Technology graduate in electrical engineering, was doing an experiment on the stability of the electrodynamic system in an effort to find out when the motor components were exposed Such as lightning hit the transmission line will have what effect. In the experiment, he used a mercury arc rectifier, the engine’s current from AC to DC and the current delivered to the generator