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Determination of maximum span length of utility lines based on consideration of eliminating magnetically induced subsequent fault

机译:在考虑消除磁感应后续故障的基础上确定公用线路的最大跨度

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摘要

As an electric fault occurs, a strong magnetic force exerted on three-phase overhead power lines may bring them in close proximity or in contact with one another, causing a subsequent fault. A computer simulation has been developed for the analysis of the magnetically induced subsequent fault and presented in the authors' earlier work. It has been found that one important factor affecting the probability of the subsequent fault is the power line configurations. In this paper, we present a numerical technique for determining the maximum span length of the power lines based on consideration of eliminating the magnetically induced subsequent fault. Various power line constructions corresponding to different fault current levels are investigated. The results presented in this paper are anticipated to be useful for a utility in long span design.
机译:当发生电气故障时,施加在三相架空电力线上的强大磁力可能会使它们紧靠在一起或彼此接触,从而导致随后的故障。已经开发了一种计算机模拟来分析磁感应的后续故障,并在作者的早期工作中进行了介绍。已经发现影响后续故障可能性的一个重要因素是电力线配置。在本文中,我们提出了一种基于消除磁感应的后续故障来确定电源线最大跨度的数值技术。研究了与不同故障电流水平相对应的各种电力线结构。预期本文中提出的结果对于大跨度设计的实用程序很有用。

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