| 10kV架空线路故障快速智能诊断的研究与应用 |
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| 引用本文： | 孙广慧,王俊丰,毕洪峰.10kV架空线路故障快速智能诊断的研究与应用[J].广东电力,2012(2):77-80,102. |
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| 作者姓名： | 孙广慧 王俊丰 毕洪峰 |
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| 作者单位： | 广东电网佛山高明供电局;佛山市燎电电力电气设备有限公司 |
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| 摘 要： | 为解决目前配电网小电流接地系统单线接地选线、故障定位技术利用线路故障自身信号进行故障诊断准确度不高的问题，研究和开发了一种利用信号注入法的新型的、具有高灵敏度和高可靠性的10kV配电网架空线路故障指示装置；介绍了该装置各组成部分的动作机理，通过研究确定该装置采用诊断信号中性点注入方式，注入频率选择82Hz现场调试及试验情况证明，该装置能够准确、可靠实现故障定位。
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| 关 键 词： | 小电流接地 故障指示装置 特频信号 接地选线 故障定位 |
Research and Application of Fast and Intelligent Fault Diagnosis of 10 kV Overhead Lines |
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| SUN Guanghui,WANG Junfeng,BI Hongfeng.Research and Application of Fast and Intelligent Fault Diagnosis of 10 kV Overhead Lines[J].Guangdong Electric Power,2012(2):77-80,102. |
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| Authors: | SUN Guanghui WANG Junfeng BI Hongfeng |
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| Affiliation: | 1.Foshan Gaoming Power Supply Bureau of Guangdong Power Grid Corporation,Foshan,Guangdong 528500,China;2.Foshan Liaodian Electric Power and Electrical Equipment Co.,Ltd.,Foshan,Guangdong 528000,China) |
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| Abstract: | In order to cope with poor accuracy in line selection in small earthing current system and fault diagnosis of fault location technology through fault signal,a new high-sensibility and reliability fault indicator for overhead lines of 10 kV distribution network based on signal injection method is studied and developed.Action theory of each component of the equipment is introduced and it is determined to adopt neutral point injection and injection frequency of 82Hz.Field commissioning and test show that the fault location can be realized with accuracy and reliability by means of this equipment. |
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| Keywords: | small earthing current fault indicator UHF signal earthing line selection fault location |
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