Specifications for the installation and operation of agricultural submersible pumps
Knowledge of safe operation of agricultural submersible pumps: Agricultural submersible pumps are small and light, and play an important role in farmland irrigation and farm domestic water. In order to avoid accidents during use, prolong the service life and give full play to its excellent performance, the following points should be paid attention to when using:
To install a leakage protector.
Submersible pumps work underwater, which is prone to leakage, resulting in power loss and even electric shock accidents. If a leakage protector is installed, as long as the leakage of the submersible pump exceeds a certain value (generally no more than 30 mA), the leakage protector will cut off the power supply of the submersible pump to avoid leakage and waste of electric energy and ensure safety.
2. When installing the submersible pump, the cable should be overhead, and the power cord should not be too long.
Do not force the cable when the submersible pump is launched or raised, 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 out the motor windings. When installing, the insulation resistance of the motor should not be lower than 0.5 megohms.
3. Try to avoid turning on the machine when the power supply voltage is abnormal.
The difference between the power supply voltage and the rated voltage cannot be 10%. If the voltage is too high, the motor will overheat and the winding will be burned. Power on for a long time will generate heat and even burn out windings and capacitors.
4. Do not switch the motor frequently.
This is because backflow will be generated when the electric pump stops. If it is turned on immediately, the motor load will be started, resulting in excessive starting current and burning of the windings.
5.Do not allow the submersible pump to run overloaded for a long time, do not pump water with a large amount of sand, and the dehydration operation time of the electric pump should not be too long, so as not to overheat the motor and burn it. When the unit is in operation, the operator must observe whether the working voltage and current are within the values specified on the nameplate. If not, the motor should be stopped to find out the cause and eliminate the fault.
6. The direction of rotation of the motor must be correct.
The rotation direction of the motor should be clarified. There are many types of submersible pumps that can discharge water when they are running forward and reverse, but the water output is small and the current is large when they are reversed. If the reverse time is long, the motor windings will be damaged.
7. The motor should be checked frequently .
If cracks are found on the lower cover, or the rubber sealing ring is damaged or invalid, it should be replaced or repaired in time to prevent water from seeping into the submersible pump.
The above is an introduction to the safe operation of agricultural submersible pumps. If you want to know more about this issue, or have questions about pump selection, pump model, and pump prices, please contact the pump manufacturer.
Zhejiang Dolay Pump Industry Co., Ltd. is located in Taizhou City, Zhejiang Province. It is a production-oriented enterprise integrating product manufacturing and sales. It can meet the needs of various pumps in different industries. Our pump factory will provide submersible pump models , Submersible pump prices and other pre-sales and after-sale services for customer reference, and provide customers with customized pump product services. We sincerely look forward to your cooperation.
