EMP mitigation technique based on low pressure SF/sub 6/ gas filled surge suppressor

Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524) Pub Date : 2002-08-07 DOI:10.1109/IVELEC.2002.999357

A. Sharma, K. C. Mittal

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Abstract

Summary form only given. The aim of this study was to develop a device to suppress fast electromagnetic pulse (EMP) in a few nanoseconds. When electronic equipment or a power line is subjected to a transient from intense and fast electromagnetic interference (EMI) sources, the consequences are temporary upset or permanent damage of the equipment. Important among such intense EMI sources are lightning strikes, high power microwave (HPM) and nuclear electromagnetic pulse (NEMP). EMI coupling to these equipments can be through conduction or radiation. To protect the equipment against such surges, the surge suppressors are connected across power lines and/or signal lines. The impedance of an arrestor is a function of the voltage impressed on it. Commonly used surge suppressors are metal oxide varistors, transient absorbers and spark gaps. Among these protective elements, the spark gaps have the outstanding advantages of high-energy absorption, low self-capacitance, low clamping voltage and high speed. Results of detailed experimental study are presented for the fast surge suppression using low-pressure SF/sub 6/ spark gaps.

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基于低压SF/sub - 6/充气喘振器的EMP缓解技术

只提供摘要形式。本研究的目的是开发一种在几纳秒内抑制快速电磁脉冲的装置。当电子设备或电源线受到快速强电磁干扰源的瞬变时，其后果是设备的暂时损坏或永久性损坏。在这些强烈的电磁干扰源中，重要的是雷击，高功率微波(HPM)和核电磁脉冲(NEMP)。这些设备的电磁干扰可以通过传导或辐射耦合。为了保护设备免受这种浪涌的影响，浪涌抑制器通过电源线和/或信号线连接。避雷器的阻抗是外加电压的函数。常用的浪涌抑制器有金属氧化物压敏电阻、瞬态吸收器和火花间隙。在这些保护元件中，火花隙具有高能量吸收、低自电容、低箝位电压和高速度的突出优点。给出了利用低压SF/sub - 6/火花隙快速抑制喘振的详细实验研究结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524)

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