How do you compare the costs and performance of different VFD bypass options?
Variable frequency drives (VFDs) are devices that control the speed and torque of electric motors by varying the frequency and voltage of the power supply. They can improve the efficiency, performance, and reliability of various applications, such as fans, pumps, conveyors, and compressors. However, VFDs also have some drawbacks, such as higher initial costs, harmonic distortion, and potential damage from power surges or faults. To address these issues, some VFDs are equipped with bypass options that allow the motor to run directly from the line power or an alternative power source in case of a VFD failure or maintenance. But how do you compare the costs and performance of different VFD bypass options? Here are some factors to consider.