But there are many noises in ground lines, which make it difficult to detect insulator corona pulses.
但是，接地线上有许多干扰，如果不消除它们，绝缘子电晕脉冲很难测到。
Based on some research results, insulator corona pulses through the ground line of the tower could be used to identify faulty insulators on transmission lines.
大量研究结果表明，输电线路上的零值绝缘子可以通过流经杆塔接地线的绝缘子电晕脉冲信号检测出来。
The polarity of impulse voltage and the polarity of insulator surface electric charge can affect the corona initial time of insulator, the change time - interval and the corona current.
外拖冲击电压的极性与绝缘子表面电荷极性是否相同会影响绝缘子的电晕起始时刻、由流注向先导的转变时间间隔和流注电晕电流。
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