The mention of 3 phase makes me wonder. Most residential areas do not ha ve3 phase available.There are converters to change a 3 pVFD'sVFhVFD's up to aboutase motor to single phase,but then would you not still get the vibration mentioned?
VFD's up to about 3 HP are single-phase 230V input with 3-phase 230V output. This elminates the no residential 3-phase problem.
RAN
