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Fault locator of all-paralleling AT traction power supply based on the theory of the current ratio of paralleling lines
Author(s): 
Pages: 36-39,48
Year: Issue:  22
Journal: RELAY

Keyword:  横联线电流比全并联AT供电电流分布故障测距自启动数据同步;
Abstract: 全并联AT(Auto-transformer)供电牵引网发生故障后,能够快速准确判断出故障类型,标定故障点位置对确保电气化铁路安全可靠运行是至关重要的.通过分析全并联AT(Auto-transformer)供电牵引网各种故障线路满足的电量方程,得到故障测距用横联线电流比原理.以典型的全并联AT供电方案为例,详细讨论了由工程实际中能测量到的电气量计算出测距公式中所需物理量的方法,提出了装置起动及数据同步原理,给出了故障测距的系统实现方案,基本上解决了各种故障类型的判断,故障点标定问题.
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