In the present work, creepage discharge characteristics, i.e. amplitudes, phases, and repetitiveness, and surface charge dynamic behaviors under a 20 kHz high-frequency sinusoidal waveform high-voltage electrical stress were captured in a discharge chamber with temperature and humidity control. The results showed that the creepage discharges mostly occurred in the positive half phase, whose maximum amplitude increased with the development of discharge. The inception voltage of the creepage discharge is independent of the frequency of the external electrical stress. Once the discharge occurred, there were a large number of positive and negative particles ionized by a high electric field. Because of the much higher velocity of electrons than positive ions, the energetic discharge-produced electrons are likely to disperse away along the surface and be accumulated through adsorption, collision, and reactions. Moreover, the positive ions join the high-conductive discharge channel and...

中文翻译：

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高频高压应力下聚合物电介质表面电荷与蠕变放电之间的相关性

在目前的工作中，在温度和湿度控制下的放电室中捕获了在20 kHz高频正弦波形高压电应力下的蠕变放电特性（即幅度，相位和重复性）以及表面电荷动态行为。结果表明，蠕变放电主要发生在正半阶段，其最大幅度随着放电的发展而增加。爬电放电的起始电压与外部电应力的频率无关。一旦发生放电，就会有大量的正负粒子被强电场电离。由于电子的速度比正离子高得多，高能放电产生的电子很可能沿着表面分散开，并通过吸附，碰撞和反应而积累。此外，正离子加入高导电放电通道并...