【成兴电气】分段器自动跌落分闸必需具备三个条件 

　　第一、故障电流超过整定的额定启动电流值；

　　第二、计数次数达到整定值(1、2、3、4次)；

　　第三、线路失压，线路电流低于300 mA，三者缺一不可，才能自动分闸。

　　First, the faults current exceeds presetting pickup current.

　　Next, the counting time reaches presetting value (1, 2, 3 or 4).

　　Third, the circuit loses voltage and the current is lower than 300mA. And then the Sectionlizer will trip automatically when the aforesaid conditions occur simultaneously. If any of aforesaid conditions doesn’t occur, the Sectionlaizer will not trip automatically.