Double circuit transmission line is widely adopted in China owing to the demand of large-capacity power transmission.
由于大容量输电的需要，双回线路在国内广泛采用。
Passenger Dedicated Line (PDL) is a fast, safe, comfortable, low power, high-capacity new mode of transport, it break the competitive pattern among traditional air, road, rail transport modes.
客运专线是一种快速、安全、舒适、低能耗、大容量的新型运输方式，它的出现打破了传统的航空、公路、铁路三大运输方式竞争旧格局。
The power frequency overvoltage of unloaded line because of the capacity effect is studied, and the effect of eliminating power frequency overvoltage using shunt reactors is analyzed.
讨论了空载线路在电容效应下产生的工频过电压，并对并联电抗器抑制工频过电压的作用进行了理论分析。
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