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Study and realization on fault location about 10 kV distribution network
Author(s): 
Pages: 24-28
Year: Issue:  18
Journal: POWER SYSTEM PROTECTION AND CONTROL

Keyword:  故障定位配电网直流法交流法;
Abstract: 随着对配电网供电可靠性要求的提高,配电网故障点的及时发现显得日渐重要,配电网的故障定位技术对于配电网安全可靠性具有非常重要的意义.本文在基于信号注入法的原理基础上,提出了一种"直流定段,交流定点"的交直流综合定位方法.该方法分两步走,第一步定出故障区域,第二步定出故障点,将直流信号和交流信号注入法相结合,优势互补,通过多次现场实验验证,可以有效地处理 101 kV 配电网中的单相接地故障.本文阐述了交直流混合定位法的原理,并介绍了信号源的注入和信号的检测方法,最后利用现场试验数据和ATP仿真验证此方法的可行性.
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