电压监测器设成“接通=1”,当电流超过大约80至100毫安时,电流监测器设成“接通=1”。电压监测器用来检查整个跳闸回路的状态,而电流监测器可用于封闭输出触点直到外部触点断开电流。上面所说的A型输出电路的结构图如下图所示。其中,a)选用电压监测器b)选用电流监测器c)无监测
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