早在19世纪末，过电流继电器就被用于保护电力系统。
As early as the end of 19th century, overcurrent relay has been used to protect electric power system.
介绍了剩余电流监视器与剩余电流断路器、剩余电流继电器的区别和联系。
The differences and relation between the residual current monitor, residual current operated circuit breaker and residual current operated protective relay were introduced.
过电流继电器是继电保护装置的一种，当负载电流超过整定值时，继电器动作。
An "Overcurrent relay" is a type of protective relay which operates when the load current exceeds a preset value.
电磁式过电流继电器调整困难、度低、靠性差、能有效的对机电设备进行保护。
Electromagnetic overcurrent relays which are difficult to be adjusted and have low accuracy and reliability can not effectively protect electromechanical equipments.
充电器应发出警报信号后没有任何一方发起一个欠压继电器或零充电电流继电器。
The charger shall give an alarm signal upon failure initiated by either an under-voltage relay or a zero charging current relay.
应经常检查高压直流电源内电流继电器，时间继电器的整定值是否正确，控制是否灵敏。
We should always check the high voltage DC power supply within the current relay, time relay setting value is correct, control is sensitive.
电流互感器（CT）饱和时，电流继电器能不能正确动作，一直存在二种载然不同的观点。
There are two different points of view on whether current relay operates correctly or not, when CT saturates.
本文提出电流继电器控制绕线式异步电动机起动电路改进方法，并对改进电路优劣进行了分析。
A method in the improvement of current relay controls winding asynchronous motor starting circuit is put forward, and the merit, demerit of it are described in the paper.
由于零差保护的特殊性，零差继电器本身就是一只灵敏电流继电器或动作功率很小的电压继电器。
Due to the specialty, REF relay is a current relay with very high sensitivity or a voltage relay with very low acting power.
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。
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.
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.
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。
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.
给出了电流继电器、圆特性以及四边型特性阻抗继电器的神经网络模型，并证明了三种模型都具有很强的自适应性。
The paper presents the neural network models of the current relay, impedance relay of circle character and polygon character, and proves that these models have better adaptability.
给出了电流继电器、圆特性以及四边型特性阻抗继电器的神经网络模型，并证明了三种模型都具有很强的自适应性。
The paper presents the neural network models of the current relay, impedance relay of circle character and polygon character, and proves that these models have better adaptability.
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