| 预电离对尖—板间隙冲击击穿的影响 |
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| 引用本文： | 周黎明,邱毓昌. 预电离对尖—板间隙冲击击穿的影响[J]. 高压电器, 1994, 0(6) |
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| 作者姓名： | 周黎明 邱毓昌 |
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| 作者单位： | 西安交通大学 710049(周黎明)，西安交通大学 710049(邱毓昌) |
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| 摘 要： | 实验发现,负离子的脱附作用是封闭尖-板间隙冲击放电的主要初始电子源.在空气中添加少量电负性气体SF_6或R12(CCI,F,),冲击击穿电压得到大幅度提高,这是由于形成了高稳定性的负离子的缘故.
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| 关 键 词： | 气体绝缘材料 间隙 击穿 空间电荷 电子 影响 |
Pre-ionization Effect on Impulse Breakdown in a Pin-Plane Gap |
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| Zhou Liming,Qiu Yuchang. Pre-ionization Effect on Impulse Breakdown in a Pin-Plane Gap[J]. High Voltage Apparatus, 1994, 0(6) |
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| Authors: | Zhou Liming Qiu Yuchang |
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| Abstract: | It is found experimentally that the main source of initiatory elec-trons in an enclosed gap is the electron detachment from unstable negative ions. And therefore a small amount of electronegative additive of SF6 or R12(CC12F2) in air, which results in formation of very stable negative ions, leads to a significant in-crease in impulse breakdown voltages in a highly nonuniform field gap. |
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| Keywords: | gas insulating material gap breakdown space charge electron effect |
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