How to protect the submersible pump motor is not burned

Many users in the use of submersible pump process of the phenomenon of submerged pump motor burned, but do not know the reasons for the submarine pump motor burned, usually submersible pumps are not leaking, leakage, overload protection devices, if necessary, these devices in the order If you use the submersible pump does not have these features then in the course of the event if there is leakage, leakage, overload phenomenon is very prone to the phenomenon of submersible pump motor burned.
Specific reasons for the submerged pump motor burned as follows:
1, due to the use of submersible pump head is too low and the head of the pump is higher than the actual price of more than 5 meters head will cause large current flow caused by the phenomenon of the rise, the solution is to close the small pump outlet valve to increase its resistance to reduce Outlet flow control current.
2, the submersible pump motor is the need to be submerged by the use of water, submersible motor cooling mainly by water cooling if the motor leakage of water without water cooling motor temperature will rise rapidly can easily lead to the phenomenon of motor burned.
3, if the liquid is less than 80 degrees within the hot water, hot water submersible pumps must be used Hot-water submersible pumps are usually stainless steel jacket with external cooling water cooling products, the use of external cooling water must be, if not connected The water cooling motor is sure to cause the motor to burn out because the medium temperature is too high to cool the motor.
4, due to submersible pump mechanical seal suffered idling or the value of the value of liquid corrosion caused by mechanical seal damage, so that the motor water will cause the motor burned. If supporting the corresponding leak sensor supporting the use of control cabinet can be avoided. In the absence of this configuration, it is recommended that the submersible pump be replaced regularly.
5, because the power cord is not a good contact and other contact causes motor missing items will burn the motor.
Do not immerse in the water for a long time submersible pump, the motor should be checked before starting the coil insulation and phase to ground insulation.
With leakage leakage overload protection function of the pump can use: high temperature submersible pumps.