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继电保护的作用是防止电力系统事故的发生和发展,限制事故的影响及范围,保证电能质量并提高供电的可靠性。继电保护装置是一种能反映电气设备的故障或不正常工作状态,并作用于断路器跳闸或发出信号的自动装置。我们通过一系列的实用计算,恰如其分地设定系统内各开关的参数(如电压、电流、时间、温度等)。当系统发生短路故障或其它多种不正常状态时,供电系统运行的参数超过或低于了设定参
The role of relay protection is to prevent the occurrence and development of power system accidents, limit the impact and scope of accidents, ensure the quality of power supply and improve the reliability of power supply. Relay protection device is a reflection of the electrical equipment failure or abnormal working condition, and acting on the circuit breaker trip or signal automatic device. Through a series of practical calculations, we properly set the parameters of each switch in the system (such as voltage, current, time, temperature, etc.). When the system short-circuit fault or a variety of other abnormal conditions, the power supply system parameters run above or below the set parameters