In this paper, the relation between the prebreakdown current pulses associated with the negative streamer inception and the tip curvature was investigated in cyclohexane. The ultra wide bandwidth method was used to measure the prebreakdown current pulse under impulse voltage (1.5/540 /spl mu/s) condition, and a high-speed high magnification shadowgraph system was used to observe the streamers. At a tip curvature of 0.5 /spl mu/m, the charge amount of the first current pulse was 0.12-0.45 pC. On the other hand, at a tip curvature of 1.0 /spl mu/m, the range was 0.39-0.92 pC. When the streamer shape was the same at each tip curvature, the range of minimum injected charge amount to form the streamer was similar.
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机译：在本文中，在环己烷中研究了与负飘移初始和尖端曲率相关的预破坏电流脉冲之间的关系。超宽带宽方法用于测量脉冲电压下的预爆电流脉冲（1.5 / 540 / SPL MU / S）条件，并且使用高速高倍率阴影系统来观察飘带。在0.5 / SPL MU / m的尖曲曲率下，第一电流脉冲的电荷量为0.12-0.45pc。另一方面，在1.0 / SPL mu / m的尖曲线下，该范围为0.39-0.92pc。当在每个尖端曲率下拖缆形状相同时，形成飘带的最小注入的电荷量的范围是相似的。
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