This is because any power transformer is almost certainly designed for 60Hz or possibly 50 Hz in Europe. If the VFD created a different frequency the transformer would not work well. Most power transformers are not optimized for a wide frequency bandwidth. That said, one could design such a transformer. It would be much more expensive but could be done.
On Thu, Jun 17, 2021 at 6:47 PM Gregg Eshelman via Emc-users < emc-users@lists.sourceforge.net> wrote: > Everything I've read on VFDs says do not feed them from a transformer. Nor > can you put a transformer between the VFD and the motor. Most of them say > *nothing* should be between the VFD and the motor, direct connection only. > The one on my 1943 Monarch 12CK lathe recommends a noise filter on the > input side to prevent noise feeding back into the line from the VFD from > getting to other stuff on the circuit. > > > On Thursday, June 17, 2021, 3:31:57 AM MDT, Peter Blodow < > p.blo...@dreki.de> wrote: > > Am 17.06.2021 um 07:20 schrieb Roland Jollivet: > > ....... > > I don't know if you can use a 110V:24V transformer in reverse, or whether > > you'll cook it. Worth a try... > > > > Roland > NO!!!!!!!!!!!!!!! > > Peter > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
