Ned Simmons wrote:
On Thu, 04 Oct 2007 21:30:20 GMT, gwes
wrote:
There's a "simple" way around this: feed the input with DC (or feed
the internal DC bus).

The gist:
would you buy a box that let you connect a motor drive to a single
phase connection at full rating and fully isolated?


Since the difference in price between a 3HP and 7.5HP VFD is only
about $200, I have a hard time believing this would be economical.

Add in a 2000-3000VA transformer and that's worth another couple
of hundred dollars - that's the isolation function.
geoff