The reasons why submersible pump runs but no output
The supply voltage is too low to start.
It is to adjust the voltage to more than 342V. If the voltage cannot be adjusted to 342V due to various reasons, but it must be used, the rated current of the submersible pump protection switch can be appropriately adjusted. However, the current should be controlled not to exceed 1.1 times the rated current of the motor during use, and the use time should be controlled so that the motor will not be overloaded for too long and cause overheating damage to the stator winding.
Phase failure or power failure of the power supply, such as cable breakage, fuse blown, poor contact of the control and protection switch, action of the control and protection device, etc.
It is to carefully check the fuses, control protection switches and protection devices, check whether the phase failure or power failure is caused by the power supply, or the phase failure or power failure caused by the action or poor contact of the fuses, switches and protection devices, and then repair the faults caused by the fuses, switches and protection devices. Power outages or disconnections caused by switches and protective devices.
Water pump impeller stuck
It is to disassemble the water pump, remove the debris from the water pump impeller, and repair the water pump.
Stator coil short circuit.
It is to check the short circuit of the stator coil and repair the stator winding of the submersible pump. At the same time, check the cause of the short circuit of the stator coil, eliminate the fault of the submersible motor, and avoid the short circuit of the stator coil again.
The long-term storage of the pump after use will cause the impeller and the mouth ring to corrode, especially for the guide vane submersible pump.
