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Five Reasons For The Failure Of Submersible Sewage Pump And Its Elimination

Released on Sep. 07, 2018

What causes the submersible sewage pump to be unable to start? Next Multistage Pipe Pump Supplier will give you a brief analysis.

Case One

When the power supply voltage of the Submersible Sewage Pump is too low and the submersible sewage pump can not start because of the low power supply voltage, the submersible sewage pump usually requires 380V power supply voltage, and the power supply voltage should be adjusted to more than 342V. When the power supply voltage is lower than 342V, the temporary emergency measures can be taken: properly adjusting the setting current of the protection switch of the submersible sewage pump, so that the protection switch will not trip frequently due to overload in the use of the submersible sewage pump. However, the current of the stator winding of the submersible sewage pump should be controlled not to exceed 11 times of its rated current, and the operating time should be controlled so that the submersible sewage pump will not be damaged by the excessive use time, overload and temperature rise of the stator winding.

Case two

When the power supply of the submersible sewage pump is disconnected or the power supply is cut off, such as the breakage of the cable core, the fuse, the bad contact of the control and protection switch, the action of the protection device, etc., which causes the shutdown of the submersible pump, the fuse in the power supply circuit, the control and protection switch and the protection device should be carefully checked if there are any faults. Whether the power supply is disconnected or power off, or due to fuses, control and protection switches and protective device action or poor contact caused by disconnection or power off. Repair the interruption or interruption caused by fuses, control and protection switches and protective devices; restore the power supply if the power supply is interrupted.

Case three

The impeller of the submersible sewage pump is stuck because the impeller of the sewage pump is stuck by water weeds and sundries and so on. When the submersible pump stops running, the pump should be disassembled and checked, and the water weeds and sundries should be removed so that the submersible pump can run normally.

Case four

Submersible sewage pump cable is too thin, too long, too large voltage drop caused by sewage pump power supply voltage is too low, the motor can not start. When the submersible sewage pump is far from the power supply, the cable is longer and the voltage drop is too large, the cable section should be appropriately thickened. If the cable length doubles, the cable section should also be doubled accordingly.

Case five

If the plug and switch of the submersible sewage pump are not in good contact with the plug and switch of the submersible sewage pump, and the plug and switch of the submersible sewage pump can not start, the plug and switch with bad contact should be repaired or replaced.

Submersible Sewage Pump

Boye Dinghe Road Urban Sector,Baoding,Hebei 071300, China
+86 312 8306 113
hbtdby@aliyun.com
+86 312 8327 015
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