基于正交变换的漏电保护的研制

Study of Earth-fault Protection Based on Orthogonal Transform

分析了两种供电方式下发生单相接地故障时的零序电流分布 ;在此基础上 ,提出了一种能够同时满足两种运行方式的漏电保护装置 ,并经实际使用验证了该装置的可靠性和准确性。

This paper analyzes the distribution of zero current of earth fault occurring in two different running modes of power distribution networks. With this understanding, the paper offer a certain earth fault protection equipment, which can do well in such two running modes of power distribution networks. Lots of practical using experience has validated this equipment with reliability and veracity.