I run my lathe and mill from it. The lathe is about 7.5hp spindle and the mill is about 7.5hp spindle. And of course it is so convenient I just turn it on when needed and off when not. My EMC machines the computer is on 120vac so I only need the phase converter on when machining. I just checked and the single phase side draws 9 amps when idling and 9.5 with the lathe spindle spinning with no load at 2k. I'd say it is more efficient than paying the local coop to run 3 phase a few miles back into the woods to me from the highway. On my BP Series 1 I use an Automation Direct GS2 VFD as it is only 1.5hp for the spindle and they are cost effective way to get up to 3hp 3 phase from single phase.
John gene heskett wrote: > On Sunday, April 03, 2011 10:46:26 AM John Thornton did opine: > > >> John, >> >> I think it is finally done... sorry for the delay. >> >> http://gnipsel.com/shop/rpc/rpc.xhtml >> >> John >> >> > How efficient would you say this is John? I can lay my hands on a 15 hp 3 > phase motor for the base iron. > > And how big a 3 phase motor could be operated from it? > > I would have a hard time justifying an idling current draw of 35 amps a leg > from the 240 to run a 3 horse motor on the machine. > > ------------------------------------------------------------------------------ Create and publish websites with WebMatrix Use the most popular FREE web apps or write code yourself; WebMatrix provides all the features you need to develop and publish your website. http://p.sf.net/sfu/ms-webmatrix-sf _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
