over-current relay 过电流继电器
neutral over-current relay 中性过电流继电器
plunger over-current relay 插棒式过电流继电器
AC directional over current relay 交流方向过流继电器
over-current relay or release 过电流继电器或脱扣器
time over-current relay 时限过电流继电器
single-phase over-current relay 单相过电流继电器
delay thermal over-current relay 延时热过电流继电器
Respectively through the various contacts, in order to dial the corresponding limit switches and over current relay normally closed contacts, to see the ability to cut off the control current.
①分别接通各个接触器，依次拨通相应的限位开关和过电流继电器常闭触头，查看其切断控制电流的能力。
WJJL1 intelligence over current relay is a typical electronic apparatus which has over current, short circuit, over voltage, under curent, phase faults and starting failure protective functions.
WJJL1智能过流继电器是典型的电子、电器技术相结合的产品。 具有过电流、短路、缺相、过欠压、欠电流、相失衡及启动故障等保护功能。
过电流脱扣试验。
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