| 暂态行波在小电流接地故障选线中的应用 |
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| 引用本文： | 戴宇.暂态行波在小电流接地故障选线中的应用[J].贵州电力技术,2010(9):5-8. |
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| 作者姓名： | 戴宇 |
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| 作者单位： | 贵州电网公司,贵州贵阳550002 |
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| 摘 要： | 为了解决小电流接地系统的故障选线问题，本文分析了常规的各种小电流接地故障选线方法存在的问题。然后，分析了小电流接地故障产生的初始电流行波以及由多次行波折反射形成的暂态电流信号的故障特征，并介绍了分别利用故障初始行波和暂态信号的选线原理。最后，分析了暂态行波选线方法的技术特点和应用前景。
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| 关 键 词： | 小电流接地系统 小电流接地故障 故障选线 行波 暂态 |
Application of transient - traveling - wave in fault line detection for indirectly grounding power system |
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| Dai Yu.Application of transient - traveling - wave in fault line detection for indirectly grounding power system[J].Guizhou Electric Power Technology,2010(9):5-8. |
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| Authors: | Dai Yu |
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| Affiliation: | Dai Yu ( CSG Guizhou Power Grid Corporation, Guiyang 550002 Guizhou, China) |
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| Abstract: | In order to solve the fault line detection problems for indirectly grounding power system, this paper analyzes the problems exciting in conventional fault line detection methods, analyzes the fault characteristics of initial current traveling waves and transient current signal formed by multiple numbers of times of reflection and refraction, and introduces the theories of fault line detection based on initial current traveling waves and transient current signal. Finally, the technical properties and application perspectives are analyzed. |
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| Keywords: | networks with ungrounded neutral earth fault in non - solidly earthed network faulty line selection travelling wave transient state |
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