A Few Tips To Extend The Service Life Of Your Submersible Pump

Sep 15, 2024

Small submersible pumps are compact and lightweight, playing an important role in many aspects. To avoid accidents during use, extend the service life, and maximize its excellent performance, the following points should be noted when using:

one.To install a leakage protector

Submersible pumps work underwater and are prone to electrical leakage, causing energy loss and even electric shock accidents. If a leakage protector is installed, as long as the leakage of electricity from the submersible pump exceeds a certain value (generally not exceeding 30mA), the leakage protector will cut off the power supply of the submersible pump to avoid energy waste caused by leakage and ensure safety.

two.Proper installation method

When installing a submersible pump, the cable should be overhead and the power line should not be too long. When diving or lifting the submersible pump, do not put force on the cable to avoid causing the power line to break. When the submersible pump is working, do not sink into the mud, otherwise it may cause poor heat dissipation of the motor and burn out the motor winding. During installation, the insulation resistance of the motor should not be less than 0.5 megohms.

three.Avoid starting up when the power supply voltage is abnormal

The power supply voltage should not differ from the rated voltage by more than 10%. If the voltage is too high, it can cause the motor to overheat and burn out the winding. If the voltage is too low, the motor speed will decrease. If it does not reach 70% of the rated speed, the centrifugal switch will close, causing the starting winding to be energized for a long time and generate heat or even burn out the winding and capacitor.

four.Do not frequently turn on or off the motor

This is because when the electric pump stops running, it will generate backflow. If it is started immediately, it will cause the motor load to start, resulting in excessive starting current and burning out the winding.

five.Do not let the water pump operate abnormally

Do not allow the water pump to operate at overload for a long time, and do not pump water with high sediment content. The dehydration operation time of the electric pump should not be too long to avoid overheating and burning out the motor. During the operation of the unit, the operator must observe at all times whether the working voltage and current are within the values specified on the nameplate. If they do not meet the requirements, the motor should be stopped to identify the cause and eliminate the fault. The rotation direction of the motor should be correct. The rotation direction of the motor should be clarified. There are many types of submersible pumps that can produce water in both forward and reverse directions, but the water output is small and the current is high in reverse. If the reverse time is long, it will damage the motor winding.

six.Maintain regularly

Regularly check the motor. If cracks are found on the lower cover, damaged or ineffective rubber sealing rings, etc., they should be replaced or repaired in a timely manner to avoid water infiltration into the submersible pump.