10kV变电站微机型距离保护，保护在线路不同故障范围发生故障时，能正确作出判断并在给定的延时时间，发出跳闸信号，并给出动作信号指示。-10kV substation computer distance protection, protection of different fault range in line when a fault occurs, can make correct judgement and in the delay time, sends out tripping signal, and gives the motion signal indication.