![<?echo $_SERVER['SERVER_NAME'];?>](/template/twentyseventeen/skin/images/header.jpg)
First, when installing a submersible pump, the cable should be overhead and the power cord should not be too long. Do not apply force to the cables when the unit is in water, as this may cause the power cord to break. The submersible pump should not sink into the mud, otherwise it will cause the motor to dissipate heat and burn out the motor windings.
Second, when purchasing a submersible pump, pay attention to its model, flow and head. If the selected specifications are not appropriate, it will not be possible to obtain sufficient water output and the unit's efficiency will not be realized. In addition, the direction of rotation of the motor should also be known. Some types of submersible pumps can produce water when they are rotating forwards and backwards. However, when the reverse rotation is small and the current is large, the reverse rotation can damage the motor windings. In order to prevent electric shock caused by electric leakage when the submersible pump works underwater, a leakage protection switch should be installed.
Third, usually more than check the motor. If it is found that there is a crack in the lower cover, the rubber seal ring is damaged or invalid, etc., it shall be promptly replaced or repaired to prevent water infiltration into the machine.
Fourth, try to avoid booting at low voltage. The power supply voltage and rated voltage must not differ by 10%. If the voltage is too high, the motor will overheat and the winding will burn out. If the voltage is too low, the motor speed will drop. If the rated speed is less than 70%, the starting centrifugal switch will close, causing the starting winding to be long. The time is energized to generate heat and even burn out the windings and capacitors. Do not switch the motor on and off frequently. This is because when the electric pump stops rotating, it will generate back flow. If it is turned on immediately, the motor load will start, causing the starting current to be too large and the winding to burn out.
Fifth, do not let the submersible pump long-term overload operation, do not pump water containing large amounts of sand, electric pump dehydration time should not be too long, so as not to make the motor overheated and burned. During the operation of the unit, the operator must observe at any time whether the working voltage and current are within the values ​​specified on the nameplate. If not, the operator should stop the motor, find out the cause and eliminate the fault.
Second, when purchasing a submersible pump, pay attention to its model, flow and head. If the selected specifications are not appropriate, it will not be possible to obtain sufficient water output and the unit's efficiency will not be realized. In addition, the direction of rotation of the motor should also be known. Some types of submersible pumps can produce water when they are rotating forwards and backwards. However, when the reverse rotation is small and the current is large, the reverse rotation can damage the motor windings. In order to prevent electric shock caused by electric leakage when the submersible pump works underwater, a leakage protection switch should be installed.
Third, usually more than check the motor. If it is found that there is a crack in the lower cover, the rubber seal ring is damaged or invalid, etc., it shall be promptly replaced or repaired to prevent water infiltration into the machine.
Fourth, try to avoid booting at low voltage. The power supply voltage and rated voltage must not differ by 10%. If the voltage is too high, the motor will overheat and the winding will burn out. If the voltage is too low, the motor speed will drop. If the rated speed is less than 70%, the starting centrifugal switch will close, causing the starting winding to be long. The time is energized to generate heat and even burn out the windings and capacitors. Do not switch the motor on and off frequently. This is because when the electric pump stops rotating, it will generate back flow. If it is turned on immediately, the motor load will start, causing the starting current to be too large and the winding to burn out.
Fifth, do not let the submersible pump long-term overload operation, do not pump water containing large amounts of sand, electric pump dehydration time should not be too long, so as not to make the motor overheated and burned. During the operation of the unit, the operator must observe at any time whether the working voltage and current are within the values ​​specified on the nameplate. If not, the operator should stop the motor, find out the cause and eliminate the fault.
Led Makeup Mirror,Led Plastic Mirror Lamp,Over Mirror Light,Frost Glass Mirror Light
NINGBO EASTKEY ILLUMINATE APPLIANCE CO.,LTD , https://www.eastkeylighting.com