Small submersible pump manufacturers

Small submersible pump production, small submersible pump manufacturers, small submersible pump brand, preferred Shanghai Wei Shanghai small submersible pump factory.
    To install a leak protector. Submersible pumps work in the water, easy to leakage caused by electrical energy loss or even lead to electric shock. If equipped with leakage protector, as long as the submersible pump leakage exceeds a certain value (generally not more than 30 mA), leakage protection device will cut off the submersible pump power, to avoid leakage of electricity, to ensure safety.
    When installing the small submersible pump, the cable should be overhead and the power cord should not be too long. Submersible pump water or put forward when the cable force, so as not to cause the power line break. Submersible pump work do not sink into the mud, otherwise it will lead to poor motor cooling and burn the motor winding. When installed, the insulation resistance of the motor should not be less than 0.5 megohms.
    Try to avoid starting when the power supply voltage is abnormal. The power supply voltage and the rated voltage can not be a difference of 10%, the voltage is too high will cause the motor overheating and burn the winding, the voltage is too low, the motor speed decreases, such as up to 70% of rated speed, start the centrifugal switch will be closed, resulting in start winding Prolonged power and heat and even burn the windings and capacitors.
    Do not switch the motor frequently. This is because the pump will stop when the return flow, if the boot immediately, will start the motor load, resulting in starting current is too large and burn the winding.
    Do not let the pump long-term overload operation, do not smoke a large amount of water, the pump dehydration run time should not be too long, so as not to overheat the motor burned. In the operation, the operator must observe whether the operating voltage and current are within the values ​​specified on the nameplate at any time. If the motor is not in compliance, the motor should be stopped to find out the cause and eliminate the fault.
    The direction of rotation of the motor should be correct. Should find out the direction of rotation of the motor, and now there are many types of submersible pump forward and reverse can be when the water, but reverse the amount of water, the current is large, the reversal of a long time will damage the motor windings.
    Usually check the motor, such as found under the cover with cracks, rubber seal ring damage or failure, etc., should be replaced or repair, to avoid water into the submersible pump.