爆炸成形熔丝(EFF)开路开关的实验与理论分析

2006 IEEE International Conference on Megagauss Magnetic Field Generation and Related Topics Pub Date : 2006-11-01 DOI:10.1109/MEGAGUSS.2006.4530692

D. Tasker, J. Goforth, H. Oona, Gerald Kiuttu, Matthew Domonkos

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引用次数: 3

摘要

EFF在洛斯阿拉莫斯被用作大电流应用的主要开路开关。它中断电流从~10 kA到25 MA，从而将电流转移到低电感负载。为了了解和优化全尺寸实验的性能，我们在一系列小尺寸实验中研究了许多参数，包括:通过爆炸产物的电导率;电流密度;起爆;绝缘子类型;导体厚度;导体金属;金属的脾气;等等。结果表明，EFF峰值电阻与电流密度呈显著的负相关。本文假设并反驳了一种简单的EFF运行挤压机制;证明EFF开关具有近乎理想的轮廓，用于产生平顶电压轮廓;并探讨小尺度开关性能退化的可能机制。

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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Experimental and Theoretical Analyses of Explosively-Formed Fuse (EFF) Opening Switches

The EFF is used at Los Alamos as the primary opening switch for high current applications. It has interrupted currents from ~10 kA to 25 MA, thus diverting the current into low inductance loads. To understand and optimize the performance of full-scale experiments, many parameters were studied in a series of small-scale experiments, including: electrical conduction through the explosive products; current density; explosive initiation; insulator type; conductor thickness; conductor metal; metal temper; and on. The results show a marked inverse correlation of peak EFF resistance with current density. In this paper we postulate and refute a simple extrusion mechanism of EFF operation; demonstrate that the EFF switch has a near-ideal profile for producing flat-topped voltage profiles; and explore possible mechanisms for the degradation of small scale switch performance.

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来源期刊

2006 IEEE International Conference on Megagauss Magnetic Field Generation and Related Topics

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