On Monday, May 28, 2012 01:43:30 PM Jon Elson did opine: > Dave Caroline wrote: > > I think most people looking at idler rotary converters dont actually > > scope the phases > > I only came across one site stating the obvious > > > > given the basic diagram of > > > > 120 ac to motor P1 and output phase L1 > > neutral--nc > > 120 ac to motor P3 and output phase L3 > > Capacitor P1 to P2 and to output phase L2 > > > > will notice the 180 deg phase of the two 120 lines are connected > > directly to L1 and L3 so that is at 180 degrees not the 120 it should > > be. > > First, you should forget the mains neutral. This terminal has no > meaning for the generated > 3-phase system, and just causes confusion. If the motor has a center > tap, you can use > that as the reference for the 3 phases. But, on John Thornton's machine > he is trying > to power a big DC supply, so there is no reference available, unless he > can get it > from his idler motor. > > Jon
True, but that point can be lethally hot to ground in operation. Hence the isolation transformer need. > > ------------------------------------------------------------------------ > ------ Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. > Discussions will include endpoint security, mobile security and the > latest in malware threats. > http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users 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> <Kensey> RMS for President??? <RelDrgn> ...or ESR, he wants a new job ;) ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users