3/2接线时保护用电流互感器配置方案探讨

Discussion on Current Transformer Used by Protections Configuration in 3/2 Main Wiring

对于3/2接线可能出现的电流互感器二次绕组内部故障,使断路器失灵保护存在动作死区而拒动,通过对3/2接线情况下的电流互感器配置进行分析,提供了电流互感器二次绕组的具体配置方案,作为设计参考。

The internal accidents that appear in current transformer secondary winding for the 3/2 connection may make the breaker failure protection exist action dead zone which conduce the breaker refuse operation. Through the analysis of the current transformer configuration under 3/2 connection, this paper provides the configuration of the current transformer secondary winding.These provides can offer a reference for engineering designs.