Generally, the main factors affecting the normal operation of the submersible pump are as follows:
1. Leakage problem. Submersible pump is characterized by the integration of the pump, and not into the water together, so the leakage problem is one of the important factors affecting the normal operation of the submersible pump.
2. Locked rotor. Submersible pump locked rotor, the stator winding will produce 5 to 7 times the normal full load current blocking the current, such as no protection measures, the submersible pump soon burned. Caused by the submersible pump for many reasons, such as the impeller stuck, mechanical seals, shaft, dirt, etc..
3. The power supply voltage is too low or the frequency is too low.
4. Wear and corrosion. Wear will greatly reduce the pump performance, flow, head and efficiency will be reduced, the impeller and pump cover rust will also cause the blockage. Corrosion of the parts of the submersible pump will not only affect the performance of the pump, but also shorten the service life.
5. Cable broken, broken. Cable break, break not only easy to cause the accident of the electric shock, and pump is running very may be in a state of two-phase work, neither water and easy to damage the motor.
