一起距离保护误动原因分析及防范措施

Causes Analysis of Misoperation of Distance Protection and the Precautionary Measures

以一起110kV距离保护误动作为例,分析了引起距离保护误动作原因,制定可行的整改措施,指出了距离保护的TV二次回路接线须正确且符合规范的重要性。

Taking for example the misoperation of 110 kV distance protection, the causes resulting in misoperation of distance protection were analyzed and the feasible improving measures were worked out. It pointed out that it was very important to correctly wire for the secondary-circuit of TV for the distance protection.