A Variable Frequency Drive (VFD) is an electronic device that controls the speed and torque of an electric motor by varying the frequency and voltage of its power supply. By adjusting these parameters, VFDs enable motors to operate more efficiently, reducing energy consumption and wear on mechanical components. VFDs are commonly used in various applications, including pumps, fans, and conveyors, where precise speed control is essential. They help improve process control, enhance system performance, and can lead to significant cost savings in energy bills and maintenance over time.