In order to improve it, some novel techniques for ground-fault feeder detection are presented in this paper, and they are implemented with currents and voltages tested by feeder terminal unit (FTU).

• 本文提出了几种基于FTU仅需就地采集电压电流量的接地保护方法,并对各种接地保护方法进行信息融合处理,提出了故障线路模糊识别技术。