>----- Original Message ----- >From: "andy pugh" <bodge...@gmail.com> >To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> >Sent: Thursday, March 10, 2011 4:59 AM >Subject: Re: [Emc-users] Single Phase Lathe spindle motor question >
>On 10 March 2011 01:24, gene heskett <ghesk...@wdtv.com> wrote: > >> But that was a 20HP motor, running on 235V 3 phase, and drew 39 >> amps/phase >> at rated power output. So a 100 HP motor would have needed only 195 amps, >> not 330/phase. > >195A per phase on 3-phase input. Wouldn't it be 50% more on >single-phase input? (Or would it be 3x as much?) > >-- >atp >"Torque wrenches are for the obedience of fools and the guidance of wise >men" 3-phase amps X 1.732 (SqRt of 3) = 3 phase amps (not dealing with changes in power factor) Roger Neal ------------------------------------------------------------------------------ Colocation vs. Managed Hosting A question and answer guide to determining the best fit for your organization - today and in the future. http://p.sf.net/sfu/internap-sfd2d _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
