配电网单相接地故障定位技术的运用  

Application of single-phase grounding fault location technology in distribution network

作　　者：朱志坚 伊长春 蒲友 Zhu Zhijian;Yi Changchun;Pu You(State Grid Zhejiang Ningbo Yinzhou District Power Supply Co.,Ltd,Ningbo Zhejiang,315100;State Grid Quzhou power supply company,Quzhou Zhejiang,324000;Jinhua Kema Electric Co.,Ltd,Zhejiang Jinhua,321000)

机构地区：[1]国网浙江宁波市鄞州区供电有限公司,浙江宁波315100 [2]国网衢州供电公司,浙江衢州324000 [3]金华珂玛电气有限公司,浙江金华321000

出　　处：《电子测试》2022年第17期116-118,共3页Electronic Test

摘　　要：本文首先概述了配电网单相接地故障定位系统的核心设备,包括故障定位装置、信号检测器、多功能高压信号发生器。随后介绍了一种基于同步相量测量的在线、及时定位技术,并通过仿真实验证明了该技术在故障定位方面的应用效果。最后以某地10kV架空线路单相接地故障为例,利用故障定位装置进行了现场试验,定位准确率达到100%,应用效果优良。Firstly,this paper summarizes the core equipment of single-phase grounding fault location system in distribution network,including fault location device,signal detector and multifunctional high-voltage signal generator.Then,an on-line and timely location technology based on synchronous phasor measurement is introduced,and the application effect of this technology in fault location is proved by simulation experiments.Finally,taking the single-phase grounding fault of a 10KV overhead line as an example,the field test is carried out by using the fault location device.The location accuracy is 100% and the application effect is excellent.

关 键 词：配电网 单相接地故障 在线定位装置 同步相量测量技术 

分 类 号：TM726[电气工程—电力系统及自动化]