随着电力系统规模的逐步扩大，各级电网的短路电流水平不断增大，使得故障限制器的应用越来越广泛。故障限流器在电网中所起的作用和安装在电网中的具体位置等问题已成为研究热点。详细介绍了故障限流器在电网中的不同安装位置并对其进行简单分类，全面阐述了这些场合发生短路故障时的特点以及安装故障限流器的意义，指出了在故障限流器实际应用中还需要深入考虑和研究的问题。

Along with the continual extension of the scale of power system and the growing of short-circuit current level, the application of fault current limiter is becoming more and more widespread. The problem of the role FCL plays and the specific locations in the network has become a hotspot of FCL research. In this paper, different installed positions are introduced and sorted. It also elaborates the distinguishing features of short circuit in these situations and the importance of fixing FCL. At last, the problem that needs deep consideration and research in practical application is pointed out.