How to increase the service life of submersible pumps
Confirm the correct rotation direction of the motor.
It is forbidden to start the submersible pump with abnormal power supply voltage.
When installing the submersible pump, the cable should be overhead, and the power cable should not be too long. Do not apply force to the cable when the submersible pump is launched or lifted, so as not to cause the power cord to break. Do not sink into the mud when the submersible pump is working, otherwise it will cause poor heat dissipation of the motor and burn the motor windings. During installation, the insulation resistance of the motor should not be lower than 0.5 megohms.
Install a leakage protector
Do not switch on and off the submersible pump frequently, this is because backflow will occur when the electric pump stops, and if it is turned on immediately, the motor load will start, resulting in excessive starting current and burning out the windings.
In order to avoid the long-term overloading of the submersible pump, do not pump water with high sand content and observe whether the current value is in the value specified on the nameplate at any time. If the current is found to be too large, it should be stopped for inspection. In addition, the dehydration time of the electric pump should not be too long, so as not to overheat the motor and burn it.
