配电系统一般采用辐射状结构,或环网结构开环运行。为了与输电系统继电保护逐级配合,就配电系统馈线而言,一般仅在其上的断路器配置保护,这样馈线上发生的故障通常就靠馈线断路器与重合闸等自动装置来隔离。目前,在我国大部分配电系统中,一般在馈线上设置一次重合闸用以恢复瞬时性故障发生后的供电;若馈线上发生永久性故障,一般将整条馈线切除,这样该馈线上所有非故障分支均会失压。结合肇庆地区配电系统实际运行情况,介绍馈线自动化的原理和配置方法,分析其在判定和隔离故障点方 Distribution systems generally use radial structure, or ring network structure open-loop operation. In order to tie in with the relay protection of power transmission system, in the case of distribution system feeders, the protection of the circuit breaker on the feeder system is generally only used so that faults on the feeder are usually separated by automatic devices such as feeder circuit breakers and reclosers . At present, in most of the distribution systems in our country, it is common to set a reclosure on the feeder line to restore the power supply after the transient fault occurs. If there is a permanent fault on the feeder line, the entire feeder line is generally cut off so that all Non-faulty branches will lose pressure. Combined with the actual operation of the distribution system in Zhaoqing, introduce the principle and configuration of feeder automation, analysis of its failure in the identification and isolation