非有效接地系统单相接地故障选线技术研究

The Singal-phase-to-earth Fault Location Technology in Neutral Ineffectively Grounded Systems

在非有效接地系统中,单相接地故障是最常见的故障类型,而由于非有效接地系统自身的特点,使得不管稳态分量还是暂态分量,都容易受到系统本身或随机因素的影响。快速寻找出故障线路有利于保证供电可靠性,因此探索出最有效的故障选线方法一直是学者们的目标。该文总结和归纳了现有的故障选线技术,并对这些技术作出了评价,最后提出了关于未来研究方向的思路。

The phase-to-earth fault is the most common fault in ineffectively grounded systems.However,due to their own characteristics,all the steady-state or transient components in these systems are affected by themselves or other random factors.Finding out the fault position quickly can guarantee reliability of power supply.Therefore,exploring effective fault location methods has been one of the most important goals to researchers.This paper summarizes and concludes the existing fault location technology.Finally,future researching orientation is proposed.