变压器阻抗保护缺陷的分析

Analysis on defects of impedance protection for transformer

针对变压器阻抗保护的保护范围进行分析 ,指出了变压器阻抗保护的缺陷 ,同时指出线路距离保护不能作为对侧主变压器的后备保护。

The protection extent and defects of impedance protection for transformer is analyzed by this article, and it is pointed that distance protection for power line cannot be applied to the backup protection for main transformer at another terminal on the same line. It puts forward the schedule of transformer backup protection and the schedule that the distance protection for power` line is applied to the backup protection for main transformer at another terminal on the same line.