BB. wrote: »
Some discussions about VFD (Variable Frequency Drives)... Basically a variable frequency inverter with (typically) three phase output. Used to soft start motors (handy for 3 phase well pumps, or pumps with well head starting capacitor) and can also turn an AC motor into a variable speed motor (very handy for pumping applications).
WELL PUMP and Inverter QUESTIONWind/solar for large scale pumping etc (out of my depth!)could use knowledge - using Gould jet pump - transfering from 230vAC to ? DC (new link/thread 10/27/2012)Help required to design off grid system (information on possibilities to connect "standard VFDs direct to solar panels) (new link 1/13/2013)