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
The over-current relay works to protect oscillation tubes and rectifier, when the current exceeds its limits. Frequency deviation caused by faulty operation is also prevented.
当电流超过限制值时，过负荷电流继电器自动保护振荡管和整流器，同时可以避免由不当操作所引起的频率漂移。
过电流脱扣试验。
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。
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