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基于六间隙棒电极结构的沿面击穿型触发真空开关的工作特点

, PP. 128-134

Keywords: 触发真空开关,工作特性,沿面击穿

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Abstract:

触发真空开关(TVS)是脉冲功率技术领域的关键器件之一。它具有很多优点,譬如宽的工作电压范围、大的通流能力、高的转移库伦量、灵活的触发系统、高的触发可靠性、快速介质恢复、长寿命、以及低噪音等。本文设计了一种基于六间隙棒电极结构的沿面击穿型触发真空开关,制作了触发源并搭建了TVS的实验平台。研究结果表明,TVS样品具有0.05~25kV的工作电压范围,工作电流峰值超过100kA,并且单次转移库伦量大于25C。TVS的总工作时延小于1.5μs,包括了800ns的触发脉冲等待时延和700ns的主间隙导通时延。最后,讨论了TVS的工作极性,理论与实验证明正极性工作方式更可靠,更具优势。

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