The Main Reasons Affecting The Normal Operation Of Submersible Pumps

Apr 15, 2025

In general, the main factors affecting the normal operation of submersible pumps are as follows.

(1) Leakage problem. The characteristic of a submersible pump is that the pump and the machine are integrated and submerged together, so leakage is one of the important factors affecting the normal operation of the submersible pump.

(2) Blocked rotation. When a submersible pump is stuck, a stuck rotor current of 5-7 times the normal full load current will be generated on the stator winding. Without protective measures, the submersible pump will quickly burn out. There are many reasons for the blockage of submersible pumps, such as impeller jamming, mechanical seal debris jamming, and dirt entanglement.

(3) The power supply voltage is too low or the frequency is too low.

(4) Wear and corrosion. Wear and tear will greatly reduce the performance of the electric pump, resulting in a decrease in flow rate, head, and efficiency. Rust on the impeller and pump cover will also cause stalling. Corrosion of submersible pump components not only affects the performance of the pump, but also shortens its service life

(5) The cable is broken or broken. Cable breakage and breakage not only easily cause electric shock accidents, but also make it highly likely that the water pump will be in a two-phase working state during operation, resulting in no water discharge and easy damage to the motor.