Submersible motors are designed for a wide range of applications, such as deep well water supply, irrigation and pressure boosting. To have a robust insulation system, the insulation shall be designed to withstand the peak voltage levels during operation.
Many applications require a long cable between the motor and power supply. Long cables increase the peak voltage level when the motor is driven by a Variable Frequency Drive (VFD), also known as a frequency converter.
The primary components of a motor insulation system shall withstand the following voltages: Phase-to-phase, phase-to-ground and turn-to-turn voltages.
