论文部分内容阅读
三相架空及电缆电力线路,由于相对地、相对相之间均存在着电容,故在正常运行及故障状态下都有电容电流流过线路。电缆的相对地、相对相之间的距离比架空线路小得多,电缆的电容及电容电流就比架空线路大得多。一、概况在成昆铁路的供电系统中,修建了大量的35千伏高压了源线路,并有贯通铁路全线的10千伏自动闭塞电力线路。35千伏高压线全部采用架空线。10千伏自动闭塞高压线在山区若要
Three-phase overhead and cable power lines, due to the relatively, there are between the relative phase capacitance, so in normal operation and fault conditions have a capacitive current flowing through the line. The relative distance between cables is much smaller than that of overhead lines, and the capacitance and capacitance currents of cables are much larger than overhead lines. I. Overview In the power supply system of Chengdu-Kunming Railway, a large number of 35 kV high-voltage source lines have been constructed and there are 10 kV automatically blocked power lines running through the entire railway line. 35 kV high voltage line using overhead lines. 10 kV automatic blocking high voltage line in the mountains to