In power system, the kinds of faults often occur on HV transmission line, and the single-phase-to earth arcing faults are the main forms of the faults.
电力系统中，高压输电线路是最容易发生故障的部分，单相电弧故障是其中最主要的故障形式，并且往往是弧光高阻故障。
Yangcheng power plant Transmission Project is a typical system having large capacity power plant connected to main system through long line.
阳城电厂送出工程是典型的大容量电厂经长线路送电的系统。
Overhead transmission lines are the vitals of power system. Its main function is to transmit electricity.
架空输电线路是输电系统的命脉，它的主要作用是传输电能。
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