The sudden failure of a small submersible electric pump can be caused by the following reasons:
1. Power outages may also be the reason why small submersible pumps suddenly fail to operate.
The solution to sudden non operation of a small submersible electric pump is to first check whether the power supply of the submersible electric pump has been cut off, identify the cause of the power outage, promptly eliminate the fault, and restore power supply.
The reason why a small submersible pump suddenly stops running may be due to the tripping of the control and protection switches of the submersible pump.
The main reason for the tripping of the control switch is that the submersible pump is damaged during operation or the submersible pump motor is overloaded. The solution to the sudden non rotation of the submersible pump is to first measure the insulation resistance of the submersible pump motor, check whether the stator winding of the submersible pump motor is damaged, and whether other components are damaged. If other components of the submersible pump are damaged, causing damage to the stator winding or due to overload or short circuit, the damaged components and stator winding should be repaired. If the submersible pump is not damaged, the tripping of the control protection switch is caused by the overload of the submersible pump. Check whether the power supply voltage and the service head of the pump are within the specified range, adjust the power supply voltage and the operating conditions of the submersible pump to the allowable range, and avoid overloading of the submersible pump and tripping of the control protection switch.
How to extend the service life of stainless steel small submersible electric pumps
The use of stainless steel small submersible electric pumps cannot be separated from the maintenance of the staff, but often many users overlook this point, resulting in frequent equipment failures, which are not worth the loss. In order to make it smoother for everyone to use in the future, check the cables, switches, electric shock protectors, etc. before using stainless steel submersible electric pumps. Switches and other electrical appliances should work normally, and cables should be carefully identified because the yellow green dual color wire is the grounding wire to prevent leakage and electric shock accidents.
Every once in a while, check the insulation resistance of the small submersible electric pump before use, which should not be less than 0.5m. If it does not meet the requirements, it should be dried. Regularly check the oil drain hole and oil drain hole, and tighten them if there are no abnormalities.
After working for 300 hours, the drainage condition of the stainless steel submersible pump should be checked. If the discharged water or oil-water mixture is less than 25 milliliters, it can continue to be used. Otherwise, the cover and rubber seal ring should be checked for damage.
Because stainless steel small submersible electric pumps are generally used in water, they should not be tested outside the water for more than 5 minutes to prevent the motor from being burned out by heat. The maintenance of stainless steel submersible electric pumps can not only ensure the equipment, but also extend its service life and reduce the operating costs of enterprises. Why not?
Mechanical failure of stainless steel small submersible electric pump: Severe damage to the bearings of the stainless steel submersible electric pump, friction between the stator and rotor during "sweeping", or blockage of the impeller in the pump body by debris can always cause overload tripping of the stainless steel submersible electric pump.
There is a problem with stainless steel submersible pumps when they leave the factory: during the manufacturing and maintenance process, due to quality reasons, the stainless steel submersible pump is overloaded. Therefore, when the stainless steel submersible pump trips, after troubleshooting the model problem, it is necessary to check the power supply voltage, bearings, etc., and follow conventional methods to ensure that the machine runs smoothly.
