气固混合绝缘系统电位分布揭示的势垒表面残余电荷

2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE) Pub Date : 2020-09-06 DOI:10.1109/ICHVE49031.2020.9279551

Yilong Wang, Qiongqiong Li, Shengwen Shu, Yuesheng Zheng

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引用次数: 0

摘要

研究了不同空气绝缘绝缘系统交变击穿后插入障面残余电荷的特性。进行了高压耐压试验和表面电位测量。结果表明，势垒表面的电位极性与击穿时刻的电压极性有关。放电通过的屏障表面电位较低。与势垒位置相比，电极半径对击穿后表面电位分布的影响更为显著。电极半径越大，表面正电位越高，电位大于3kv的面积越大。当势垒悬浮时，表面电位衰减缓慢。最后讨论了表面电位显示的残余电荷的影响。

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Residual Charges on Barrier Surface Revealed by Potential Distribution in a Hybrid Gas-Solid Insulation System

The characteristics of residual charges on the inserted barrier surfaces in different air-insulated insulation systems after alternating breakdowns are investigated. High voltage withstand tests and surface potential measurements were carried out. The results show that the potential polarity on the barrier surface is related to the voltage polarity at the moment of breakdown. The barrier surface potential where the discharge passes through is lower. Compared with the barrier position, the electrode radius has a more significant effect on the surface potential distribution after breakdown. As the electrode radius increases, the positive surface potential is higher and the area with the potential higher than 3 kV is larger. The surface potential decays slowly when the barrier is suspended. At last, the effect of residual charges revealed by the surface potential is discussed.

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2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE)

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