Main features: 1. Overload protection 2. Open-phase protection 3. Undervoltage and overvoltage protection 4. Double power operation 5. Operation parameter display JDK8S intelligent pumping unit motor...

Main features: 1. Overload protection 2. Open-phase protection 3. Undervoltage and overvoltage protection 4. Double power operation 5. Operation parameter display JDK8S intelligent pumping unit motor protector uses single chip microcomputer imported from the United States as the control core, and uses advanced WatchDog (namely "WatchDog" circuit) in the line, to prevent the crash caused by all kinds of interference. It is characterized by powerful functions, strong anti-jamming capability, etc. This protector is designed on the basis of the working characteristics of pumping units and multi-power high-slip motor. It can monitor the load in a real-time manner, switch high and low power, and make the motor work with maximum efficiency, so as to achieve the best energy-saving effect. This protector can work under double power, or under single power. It can display the three phase current and average current of the motor in a real-time manner, and display all kinds of fault types. It has perfect protection function. Technical parameters: 1. Power range applicable to the motor: 7.5-75kW 2. Default phase action time: 1S 3. Recovery time after interference: 1S 4. Overload ratio and action time: (see Table 1) 5. Environment temperature: -20°C-70°C 6. High power to low power time: 5-7 minutes (when the maximum current in high power operation is lower than rated current in low power operation) 7. Low power to high power time: 30S (when overload rate in low power operation reaches 1-2 times)

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