轨道交通车辆低压配电接触器选型方法

Contactor Selection in Low-voltage Distribution on Rail Transit Vehicle

接触器是轨道交通车辆低压配电控制电路的核心元件,其选型由电压等级、使用类别、工作制式、电气寿命及工作环境等因素综合决定。对轨道交通车辆常用负载在各种使用类别的工况下,分析相应的接触器选型要求,给出了选型原则和建议。

Contactor is the key element in rail transit vehicle control circuit,the type selection of which depends on comprehensive factors like rated voltage,utilization category,working frequency,electrical durability,working condition and so on.According to the normal loads of rail transit trains in different operating modes,correspongding type selections of contactor installed on railway vehicle are analyzed,the selection principle and suggestions are propsed.