The reason why the submersible pump does not pump water or water is small

The reason why the submersible pump does not pump water or water is small

The submersible pump consists of a control cabinet, a diving cable, a submersible pump, an uplift water pipe and a submersible motor.General can be divided into: water submersible pump, sewage submersible pump, seawater submersible pump.

If the three-phase current of the motor is normal after starting the electric pump, there is no problem with the power supply voltage, the water pump does not go out of water or the water is small.
Possible reasons:
(1) when the newly installed electric pump is used, if the pump does not discharge water or the amount of water is small, it may be the reverse of the water pump, and the phase sequence of any two phase cable can be changed to solve it.
(2) the rated power of the electric pump is too small, and the power pump can be replaced with high power
(3) the water discharge of the pump can be affected by the rupture of the young water pipe or the leakage of the connection.
(4) for the normal use of water pumps, if the amount of water is getting smaller and smaller, it may be that the electric pump is used for a long time, causing the seal ring to wear out, which can be checked and replaced.
(5) it may be that the suction inlet of the pump is clogged with debris, which affects the suction of the water, when only the grille or screen of the pump can be cleaned
(6) it may be the broken rod of the motor casting aluminum rotor, the end ring of the copper strip rotor is open and welded, causing the motor to be unexciting and the rotating speed decreases. The solution is to replace the rotor or weld the welding place.
(7) in addition, if the electric Yang functioning normally, but the three phase current is small, the pump is not water, may be the pump shaft fracture, loose coupling, pump and if so, should be checked to eliminate, in shaft or reassemble the pumps.