基于分区段保护的配电主站故障就地隔离方法

Study on Local Fault Isolation Method of Distribution Main Station Based on Section Protection

针对传统隔离方法在配电主站故障位置隔离时,存在隔离范围与实际需要隔离位置不符,无法实现配电主站运行保护问题,阐述基于分区段保护的配电主站故障就地隔离方法,通过故障方向判定、故障区域就地定位隔离,提出一种全新的就地隔离方法。对比实验证明,与传统隔离方法相比,新的隔离方法能够提高隔离范围的准确性。

In view of the problem that the traditional isolation method is inconsistent with the actual isolation position when isolating the fault position of the distribution master station,and can not realize the operation protection of the distribution master station,this paper expounds the fault local isolation method of the distribution master station based on the section protection,and puts forward a new local isolation method through the determination of the fault direction and the local positioning and isolation of the fault area.Comparative experiments show that the new isolation method can improve the accuracy of isolation range compared with the traditional isolation method.