摘要
在大功率应用下,继电器过零检测既可以保证继电器在瞬间工作电压、工作电流最小的情况下,进行断开和吸合,同时也能够降低吸合或断开瞬间的工作温度,减少拉弧现象,延长继电器的工作寿命。
In the high-power application, the zero-crossing detection of the relay can not only ensure that the relay can disconnect and pull in when the instantaneous working voltage and current are minimum, but also reduce the working temperature at the moment of pull-in or disconnection, reduce the phenomenon of arc drawing, and prolong the working life of the relay.
出处
《科技创新与应用》
2020年第9期91-92,共2页
Technology Innovation and Application
关键词
继电器
检测
拉弧
relay
detection
arc drawing
