配电网故障选线与定位发展现状

Development of Selection Wire and Fixed Position of a Distribution Network Fault

配电网故障选线与定位对于提高供电能可靠性、增强供电质量具有非常重要的意义。首先分别介绍了利用接地故障特征分量,利用故障相暂态特征分量以及不利用接地故障特征分量的三种选线方法,之后阐述了故障分析法、行波测距法和智能化测距三种定位方法。对不同方法的优缺点进行了分析综述。

It is of momentous significance for selection wire and fixed position of a distribution network fault to increase electric energy reliability and supply quality.First,three selection wire methods of using ground fault characteristic component,fault phase transient characteristic component and not using ground fault characteristic component are presented.Then,three fixed position methods of fault analysis method,travelling distance measurement and intelligent distance measurement are explained.It analyzes strong point and weak point for different methods.