On Thursday, January 19, 2012 02:11:52 PM andy pugh did opine: > On 19 January 2012 17:43, Kyle Kerr <ker...@gmail.com> wrote: > > I see a number of posts on this list regarding VFDs that I thought I > > would share this bit of information in case it was not on your radar. > > > > http://hackaday.com/2012/01/19/building-a-variable-frequency-drive-for > > -a-three-phase-motor/ > > Aha! The IRAMS module!.
Hummm. Interesting article in that some of the links expound on the power efficiency of such an approach. Is this general family of IRAMS module available such that it could drive a 2-5 horse 3 phase motor on a lathe. It seems the 3 to 6 amp rating of that exact device he used would be a bit puny for such service. I ask because I've bypassed some decent sounding machinery on ebay simply because it needed a 3 phase supply, and I only have a 252 volt leg to leg single phase available in my neighborhood. Commonly called 220 by the unwashed. Those machines become much more appetizing when their power usage can actually be scaled according to the actual work being done. Particularly the startup surge that tends to fatigue both fuses and thermally driven circuit breakers. Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> The worst part of having success is trying to find someone who is happy for you. -- Bette Midler ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
