What are the reasons for the burnout of the stainless steel submersible pump motor?

What are the reasons for the burnout of the stainless steel submersible pump motor?

Many users have the phenomenon that the motor of the submersible pump burns out during the use of the submersible pump, and they do not know the reasons for the burnout of the motor of the submersible pump. 

The usual submersible pumps do not have water leakage, electric leakage, or overload protection devices. If you need these devices, place an order Additional requirements need to be put forward beforehand. If the submersible pump you use does not have these functions, then the submersible pump motor will easily burn out if there is water leakage, electric leakage, or overload during use. The specific reasons for the burnout of the submersible pump motor are as follows:

1.Because the head of the submersible pump is too low and the head of the pump is more than 5 meters higher than the head of the real price working condition, it will cause the phenomenon that the flow is too large and the current rises. The solution is to close the outlet valve of the pump to increase the resistance and reduce it. Outlet flow control current.

2. The motor of the submersible pump needs to be submerged in water. The heat dissipation of the submersible motor is mainly cooled by water. If the motor leaks out of the water and there is no water to cool the motor, the temperature of the motor will rise sharply, which will easily cause the motor to burn out.

3. If the liquid to be transported is hot water below 80 degrees, hot water submersible pumps must be used. Hot water submersible pumps are usually products with stainless steel jackets and external cooling water. When using, they must be cooled by external tap water. If not connected Tap water cooling the motor will definitely cause the motor to burn out because the temperature of the medium is too high to cool the motor.

4. Because the mechanical seal of the submersible pump encounters idling or is corroded by liquid, the mechanical seal is damaged, so that the motor will be flooded and the motor will burn out. If it is matched with the corresponding water leakage sensor and matched with the control cabinet, it can be avoided. Without this configuration it is recommended that the submersible pump be serviced regularly to replace the seals.

5. If the motor is missing due to other contact reasons such as the power line is not in good contact, the motor will also be burned.

For submersible pumps that have been immersed in water for a long time and are not used, check the ground insulation and phase insulation of the coil before starting the motor.