本研究设计了一种超声频脉冲等离子切割电弧发生系统，并通过实际切割试验，测试、分析了这种高频脉冲电弧的振动特性。
This study designed a system to generate ultrasonic-frequency pulsed plasma cutting arc, and experimentally investigated the vibration characteristics of the high frequency pulsed arc.
电的最后结果发生时，有电线导体短路(有电弧放电的现象)或电线导体开口暴露的现象。
Electrical end results occur with the shorting together of the cord conductors (evidence of an electrical arc discharge exists) or with the opening of either or both of the cord conductors.
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。
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.
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