As early as the end of 19th century, overcurrent relay has been used to protect electric power system.
早在19世纪末，过电流继电器就被用于保护电力系统。
An "Overcurrent relay" is a type of protective relay which operates when the load current exceeds a preset value.
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。
To solve th is problem, the inter-block reverse overcurrent relay is proposed in this paper , which makes more substations′ connection possible.
应用此继电器，结合常规的光纤纵差和过流保护，从而构成一个完备的保护方案。
High / low pressure switch protection, protection, hot melt season, high exhaust heat protector for a compressor, overcurrent relay, phase sequence protector.
高/低压力开关保护、排气过高保护、热熔赛、压缩机热保护器，过流继电器、相序/缺相保护器等。
For backup protection against high resistive ground faults, there will be a dual polarized directional overcurrent relay, inverse time with instantaneous trip attachment.
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。
The improved PSO algorithm is tested in two models, to show the effects of improvement and its ability in solving the inverse time overcurrent relay coordination problem when DG units are connected.
通过对两个算例的分析可看到改进算法的效果以及粒子群算法解决分布式电源并网情况下反时限过流保护整定问题的能力。
The OCGR is a microprocessor based digital type protective relay that has ground overcurrent detecting. For protecting coordination, it could be applied with.
该OCGR是一个基于微处理器的数字式继电保护已经过实地检测。为保护协调，可以适用于。
The relay is made up of integrated circuits. The line instantaneous overcurrent protection and overcurrent protection are combined with the once 3-phase reclosure application to form a whole body.
该继电器采用集成电路构成，集线路的速断保护、过电流保护及三相一次重合闸于一体。
The relay is made up of integrated circuits. The line instantaneous overcurrent protection and overcurrent protection are combined with the once 3-phase reclosure application to form a whole body.
该继电器采用集成电路构成，集线路的速断保护、过电流保护及三相一次重合闸于一体。
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