有源输出型剩余电流继电器及其保护装置的节电效果

Active Output Type Residual Current Relay and Power Saving Effect of Its Protection Device

介绍了交流接触器电磁系统消耗功率的产生原因,阐述了有源输出型剩余电流继电器与交流接触器组合应用的节电特性,对一例实用电路进行比较分析,结果表明,有源输出型剩余电流动作继电器中加入交流接触器吸合线圈的直流保持运行方式,能有效地解决耗电和噪音的问题,且运行稳定,节约了大量的电能。

Introduction was made to the cause of generation of AC contactor electromagnetic system in power consumption.This paper described power saving characteristics of active output type residual current relay and AC contactor in combination application to carry out comparison and analysis for a practical circuit.The result shows that the DC remaining operation method,with AC contactor suction coils added in active output type residual current action relay,can effectively solve problems of point and noise in stable operation,saving a lot of electric energy.