单相接地故障指示器的应用  

Analysis on Application Status of the Existing Single-Phase Grounding Fault Indicator

作　　者：吴军汝 李宝树[1] 梁仕斌[3] 田庆生[3] 代云洪[2] 

机构地区：[1]华北电力大学,河北保定071003 [2]云南电网公司研究生工作站,昆明650217 [3]云南电网公司电力研究院,昆明650217

出　　处：《云南电力技术》2014年第5期62-65,共4页Yunnan Electric Power

摘　　要：通过研究现有应用的"暂态综合判据法"和"信号源注入法"检测原理,发现这两种方法适用于配电网常见的中性点不接地和经消弧线圈接地系统,且动作准确性高于其他检测原理,应结合故障指示器的原理及网架结构的复杂程度,选择与配网相适应的检测原理及设备。然后通过对故障指示器的应用现状分析,给出了故障指示器系统自身功能扩展及该系统接入配电自动化系统的发展方向的建议。Studying the exsiting application “transient synthesis criterion method” and “signal injection method” detection principle,found that the two methods is suitable for the common distribution network neutral point grounding and arc-supptession coil ground system？ And the accuracy is higher than other principle？ We shoud combine the principle of fault indicator with the com-plexity of the space truss structure to select appropriate principle and equipment to distribution network？ Then through analyzing the present situation of fault indicator gives the proposal of development direction which is about system itself function extension and acc-sess to the distribution automation system.

关 键 词：接地故障指示器 故障检测方法 故障定位系统 

分 类 号：TM862[电气工程—高电压与绝缘技术]