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问:10～55千瓦潜水电机控制线路如何选择?其线路原理及怎样选择元件? 答:可选用不可逆自耦降压起动器,由于潜水电泵价格昂贵,在控制部分应有短路、过流、过载、单相运行、失压及欠压等保护环节,对要求严格的还应有反转保护装置。线路原理见图1。动作原理:当欲起动电机时(对无反转保护的柜,下井前应检查电机是否与水泵要求之转向相符.否则应调换三相线中任意两根),首先合上空气开关ZK,电压表(小容量可不装此表)有指示,按动起动按钮QA,降压回路主接触器1XC、2XC闭合,起动过程信号灯HD亮,电机经补偿器
Q: 10-55 kilowatts submersible motor control circuit how to choose? The principle of the line and how to choose components? A: Optional irreversible self-voltage step-down starter, as the submersible pump is expensive, in the control part should have short circuit, over current, Overload, single-phase operation, loss of pressure and undervoltage protection and other sectors, there should be strict requirements of reverse protection device. Line principle shown in Figure 1. Action principle: When you want to start the motor (no reverse protection of the cabinet, go down well before the pump should be checked whether the required steering or not, or should be replaced by any two three-phase line), first close the air switch ZK, voltage Table (small capacity can not be installed this table) instructions, press the start button QA, step-down circuit main contactor 1XC, 2XC closed, the start signal HD light, the motor compensator