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首页> 外文期刊>International Journal of Engineering Practical Research >The Research Method of Prevention Transformer Differential Protection Misoperation Caused by the Sympathetic Inrush
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The Research Method of Prevention Transformer Differential Protection Misoperation Caused by the Sympathetic Inrush

机译：防止同感涌流引起的变压器差动保护误动的研究方法

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摘要

Differential protection has been the main protection of transformer for a long time. The key and difficult problem is how to prevent the differential protection misoperation caused by inrush current. In recent years, there has been a lot of sympathetic inrush accidents caused by misoperation of transformer differential protection, affecting the safe and stable operation of power system. This paper established the simulation model of inrush current and, analysis of sympathetic inrush mechanism. At the same time, the fundamental reasons of differential protection misoperation caused by the sympathetic inrush were found out. And relevant methods and measures of preventing the sympathetic inrush misoperation in the transformer differential protection are put forward.
机译：长期以来，差动保护一直是变压器的主要保护措施。关键和困难的问题是如何防止由浪涌电流引起的差动保护误操作。近年来，由于变压器差动保护误动作而引起的大量同感涌入事故，影响了电力系统的安全稳定运行。建立了涌流的仿真模型，并分析了同感涌流机理。同时，找出了由同感涌流引起的差动保护误动的根本原因。并提出了防止变压器差动保护中的同相涌流误操作的方法和措施。

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