The winding wire of a submersible motor is a special wire in the motor of a submersible pump, which is used to transmit current and generate a magnetic field to drive the submersible pump to work.The winding wires of submersible motors need to have high water pressure resistance, oil resistance, corrosion resistance or high temperature resistance to ensure stable operation in deep water or various harsh environments.

The main problems of winding wire include aging, fracture, and damage to the insulating layer of the winding wire.These problems may cause the motor to fail to work properly and even cause a safety accident.The main causes of winding problems include：

Overload: If the flow rate of the pump is too large or the head is too high, which exceeds the bearing capacity of the motor, the winding may overheat and eventually burn down.Therefore, it is necessary to select the appropriate pump according to the parameters of the motor to avoid overloading operation.

The ground wire is connected to the wrong power supply.There are four cores in the cable of the submersible pump. Be careful not to connect the ground wire as a power cord.

The temperature rise of the winding coil increases: due to the high-order harmonics of the inverter output, the loss of the winding coil increases, resulting in an increase in temperature rise.Especially at low speeds, this problem is even more serious.