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Experimental study and circuit analysis model of lightning isolation transformer for railway signal system

机译:铁路信号系统雷电隔离变压器实验研究与电路分析模型

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Japanese railway systems run throughout Japan and are the main means of transportation for many people. In recent years, with the development of energy-saving techniques in these railway systems, they are recognized as an ecologically friendly means of transportation with low CO2 emissions. In particular, signal facilities used in the railway systems have been progressively computerized, and the railway systems have had weak resistance to an overvoltage caused by lightning. Thus, for insulating AC power sources, railway companies use devices such as insulation transformers or lightening isolation transformers, which can withstand high voltages. This document presents results obtained by examining surge characteristics of the insulation transformer and the lightning isolation transformer which are used in one of methods of taking countermeasures against lightning damage. To recognize the lightning isolation transformer's response to lightning-caused overvoltage, frequency characteristics among terminals were determined using an impedance analyzer to construct an accurate circuit analysis model.
机译:日本铁路系统贯穿日本,是许多人的主要交通工具。近年来,随着这些铁路系统的节能技术的发展,它们被认为是具有低二氧化碳排放的生态友好友好的运输方式。特别地,铁路系统中使用的信号设施已经逐步计算机化,铁路系统具有对由闪电引起的过电压的抵抗力较弱。因此,对于绝缘电源,铁路公司使用诸如绝缘变压器或亮度隔离变压器等设备,可以承受高电压。本文档通过检查绝缘变压器的浪涌特性和雷电隔离变压器的浪涌特性提出了一种,该浪流隔离变压器是对避雷损坏的对策的一种方法。为了识别雷电隔离变压器对闪电导致过电压的响应,使用阻抗分析仪确定终端之间的频率特性来构造精确的电路分析模型。

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