一种现代保护继电器能提供多达600条高分辨率的信息与故障记录。

A modern protection relay offers up to 600 information and fault records with high resolution.

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继电器是保护系统的逻辑元件，它感知故障，并使断路器解扣电路带电和断路器打开触点。

Relays are the logic elements of a protection system which sense the fault and cause the circuit-breaker trip circuits to be energized and the breakers to open their contacts.

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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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