Miniature submersible pump is small and light, it plays an important role in the rural production. So what should be paid attention when use it?
1. When installing a small submersible pump, the cable should be overhead, where the power cord should not be too long. Do not allow the cable to force the unit to avoid causing the power cord to break, submersible pumps do not sink into the mud, otherwise it will cause poor heat to burn the motor windings.
2. Try to avoid starting submersible pump in the low voltage, the power supply voltage and the rated voltage can not be a difference of 10%, the voltage is too high will cause the motor overheating and burn the winding, the voltage is too low, the motor speed, such as less than 70% of rated speed, Start the 
centrifugal switch will be closed, resulting in a long time to start the winding power and heat even burn the windings and capacitors. Do not frequently switch the motor, this is because the pump will stop when the return flow, if the boot immediately, will start the motor load, resulting in starting the current is too large and burn the winding.
3. Do not make the pump overload operate for a long time, do not smoke water with large amount of sand, the pump dehydration operation time should not be too long, so as not to overheat the motor and burned. In the operation, the operator must observe whether the operating voltage and current are within the values specified on the nameplate at any time. If the motor is not in compliance, the motor should be stopped to find out the cause and eliminate the fault.
