内部诊断提供全面的过载、输入欠压及过温保护。

Internal diagnostics provide comprehensive protection against overloads input undervoltage and overtemperature conditions.

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实现直流系统过、欠压保护及电压显示的组合，装置的集成度非常高。

DC system had to achieve, under-voltage protection and voltage show a combination of device integration is very high.

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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。

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.

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