NOT KNOWN FACTS ABOUT VFD PANEL

But, if we lessen the frequency to 30Hz, then we have to also reduce the voltage to 240V as a way to keep the V/Hz ratio. How are we going to lessen the voltage if the only real voltage Now we have is 650VDC?This is named Pulse Width Modulation or PWM. Visualize that we could control the pressure inside of a h2o line by turning the valve on and off