To satisfy heavier irrigation tasks for the time being, the system adopts PLC programmable controller to take place of traditional relay protection of power system.
使用PLC可编程序控制器取代传统的继电保护控制，以满足目前日益繁重的灌溉任务；
The development trend of the relay protection technology of the power system is to computerization, networking, intelligent, protect, control, measuring and communication integrate.
电力系统继电保护技术的发展趋势是向计算机化，网络化，智能化，保护、控制、测量(计量)和通信一体化。
In the system of relay protection of electric power, abnormal state information given by relay protection devices has two types: accident information message and warning information message.
在电力继电保护系统中，继电保护设备给出的异常状态信息报文通常可分为两类：事故信息报文和预告信息报文。
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