交流断路器动作特性在线监测分析装置在供电系统中的应用

Application of On-line Monitoring and Analyzing Device for AC Circuit Breaker Action Characteristics in Power Supply System

分析了供电系统中交流断路器的类型、组成结构及动作特性,提出了交流断路器动作特性在线监测分析装置。该装置通过测量交流断路器的零序电流、三相电路的电流和三相电路的电压,同时接收分闸指令、合闸指令、分闸位置反馈信号和合闸位置反馈信号,完成对交流断路器的监测,实现断路器故障判断。

This paper analyzes the types,structure and action characteristics of AC circuit breakers in the power supply system,and proposes an on-line monitoring and analysis device for the action characteristics of AC circuit breakers. By measuring the zero sequence current of the AC circuit breaker and the current and voltage of the three-phase circuit,and simultaneously receiving the opening instruction,closing instruction,the feedback signals of the opening position and the closing position,the device cpompletes the monitoring of the AC circuit breaker to realize the fault judgement for the circuit breakerd.