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.
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.
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.
从后得到的保护继电器命令断路器，只有断开故障因素。
The circuit breaker after getting command from the protective relay, disconnects only the faulted element.
对于后备保护装置防止高阻抗接地故障，将配置一只双极方向过电流继电器，同瞬时跳闸附件的时间成反比。
For backup protection against high resistive ground faults, there will be a dual polarized directional overcurrent relay, inverse time with instantaneous trip attachment.
故障诊断系统依据保护继电器和断路器的采样信息估计电力系统中故障段的位置。
The diagnostic system can be applicable to power system control center for fault section estimation using information of relays and circuit breakers.
为此对故障原因进行了分析，同时针对继电器搭接的汽轮机保护装置的设计缺陷进行了详细的分析并提供了解决方案。
This paper analyzed the failure and the designed defects of protection units lapped with relays, it also provided a solution scheme.
本文提出了电力变压器内部相间故障的分析方法，比较了距离继电器及其他后备保护在此故障时的灵敏度。
In this paper the method of analyzing the phase-to-phase faults in power transformers is presented. The sensitivities of distance relays and other back-up protections during the faults are compared.
继电器具有相位故障保护和从手动转换为自动重置的功能。
Thermal overload relays offer phase failure protection and are convertible from manual to automatic reset.
数字仿真结果表明，本方法可准确识别故障电流和励磁涌流，即使在空载合闸于内部故障时，保护继电器也能迅速可靠动作，避免了采用二次谐波制动导致的误动问题。
The results of the digital simulation show that the method can identify fault current and energizing inrush current precisely and makes it rapid and reliable for the protective relay to …
数字仿真结果表明，本方法可准确识别故障电流和励磁涌流，即使在空载合闸于内部故障时，保护继电器也能迅速可靠动作，避免了采用二次谐波制动导致的误动问题。
The results of the digital simulation show that the method can identify fault current and energizing inrush current precisely and makes it rapid and reliable for the protective relay to …
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