三菱手车式开关柜与二次继电保护的配合

Coordination between Mitsubishi cart-type switchgear and protection relay

进口开关柜在内部联锁和控制回路上与国产开关柜存在一定的差别。因此 ,简单介绍了日本三菱 10kV手车式开关柜的联锁回路 ,着重对其在二次设计中与保护配合方面出现的问题进行了分析 ,并提出了两种解决方案。经过分析比较 。

In view of the differences in inner interlock and control circuit between imported switchgears and domestic ones, this paper briefly introduces the interlock circuit of 10 kV cart type switchgear manufactured by Mitsubishi Electric Corporation Japan. Some problems related with the coordination between the control circuit and protection relay are analyzed in detail and the treatment proposals are given out.