What Are The Ways To Extend The Service Life Of Submersible Pumps

Nov 01, 2022

The quality of the submersible pump is not only related to the price, but the normal use also determines the life of the submersible pump! The work of the submersible pump is that the entire pump body and the motor are in the liquid. Only by effectively maintaining the submersible pump can the life of the submersible pump be guaranteed. The following are some points on how to improve the life of the submersible pump:

1. Confirm the correct rotation direction of the motor

The rotation direction of the motor should be clarified. Now there are many types of submersible pumps that can discharge water in both forward and reverse rotations, but the water output is small and the current is large during reverse rotation, and the motor winding will be damaged if the reverse rotation time is too long.

2. It is forbidden to start the machine when the power supply voltage is abnormal

Because the low-voltage power supply line is relatively long, it is common for the voltage at the end of the line to be too low. When the phase voltage is lower than 198 volts and the line voltage is lower than 342 volts, the motor speed of the submersible pump will drop. When it does not reach 70% of the rated speed, the start centrifugal switch will be closed, causing the start winding to be energized for a long time and heat up or even burn out. windings and capacitors. On the contrary, the high voltage causes the motor to overheat and burn out the windings. Therefore, during the operation of the submersible pump, the operator must observe the power supply voltage value at any time. If it is lower than 10% of the rated voltage and higher than 10% of the rated voltage, the motor should be stopped to find out the cause and eliminate the fault.