摘要
分析了零序电流保护的特点及应用情况，提出了零序电流保护属于后备保护系列、在和其它保护方式相配合方面还应加以改进，说明了零序电流保护在发电厂和变配电系统中的重要地位。
The characteristics and applications of zero order current protection are discribed in detail in this paper.It is presented that the zero order current protection should be belonged in the backing protection series and improved in cooperation with other protections,and the emphasis of it in the generating plants and the alterating and distributing system is pointed out,too.
