一、前言提起交流电气化,很自然地会联想到是指工频单相交流。而实际情况到目前为止,除了西德、瑞典等国由于它们已经有低频电源设备,而铁路采用低频单相电化外,现在进行新的交流电化时,起码是要采用工频25千伏电压的制式,因为25千伏已经成为国际上标准的供电电压值。 First, the introduction Mention exchange electrification, it is natural to think of refers to the frequency of single-phase communication. The actual situation so far, in addition to West Germany, Sweden and other countries because they already have low-frequency power equipment, and the railway using low-frequency single-phase electrochemical, now a new AC, at least to adopt the frequency 25 kV Standard, because 25 kV has become the international standard supply voltage.