一起220 kV电流互感器故障保护动作行为分析

Analysis of Fault Protection Action of a 220 kV Current Transformer

介绍了一起220 kV光伏电站内电流互感器故障的动作案例,详细分析了保护动作行为情况,根据分析对一次设备故障点进行了推测定位,并进行了验证,以期能对电网系统现场故障分析、保护动作分析等有所帮助。

A fault operation case of current transformer in a 220 kV photovoltaic substation is introduced,and the action behavior of relay protection is analyzed in detail.According to the analysis of the situation,the fault point of the primary equipment is located and verification is carried out,which is expected to be helpful for on-site fault analysis and protection action analysis of power system.