开关方式对大电流触发真空开关介电强度的影响

Digest of Technical Papers. 12th IEEE International Pulsed Power Conference. (Cat. No.99CH36358) Pub Date : 1999-06-27 DOI:10.1109/PPC.1999.823752

V. Sidorov, N. I. Korobova

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引用次数: 7

摘要

研究了开关条件对梯形棒电极系统大电流触发真空开关内绝缘介电强度的影响。对两种转换制度进行了调查。在第一种状态下，电极侵蚀主要发生在气相，电极表面在切换后保持光滑。在另一种开关状态下，电极侵蚀的下降阶段普遍存在，并且发生相当大的电极表面损伤。对实验数据进行统计处理，击穿电压分布符合威布尔分布规律。考虑了间隙和电极材料对触发真空开关介电强度的影响。

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Influence of switching regimes on dielectric strength of high current triggered vacuum switches

Switching conditions influence on dielectric strength of internal insulation of high-current triggered vacuum switches with trapezoidal-rod electrode system is investigated. Investigations were carried out for two switching regimes. In the first regime electrode erosion occurs mainly in a vapor phase where the electrode surface remains smooth after switching. In the other switching regime a drop phase of electrode erosion prevails and considerable electrode surface damage takes place. It follows from statistical processing of experimental data that the breakdown voltage distribution is described with a Weibull distribution law satisfactorily. Influence of gap and electrode material on dielectric strength of triggered vacuum switches is considered.

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Digest of Technical Papers. 12th IEEE International Pulsed Power Conference. (Cat. No.99CH36358)

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