is it more cost effective to use 230 volt single phase to 230 3 phase drives...or 400 to 400 v drives.
please explain your answer.
my thoughts are if you use a 230 - 230 drive you will save on panel size and wiring...not having to install 3 phase circuit breakers and 3 phase supply wiring...but maybe i am missing something...like the cost of the drives or capabilities of the 230 v drives.
another way of looking at it...the single phase side would require bigger cables.
anyone ever done a costing?