On Fri, 25 May 2012, andy pugh wrote: > Date: Fri, 25 May 2012 18:48:00 +0100 > From: andy pugh <bodge...@gmail.com> > Reply-To: "Enhanced Machine Controller (EMC)" > <emc-users@lists.sourceforge.net> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Subject: Re: [Emc-users] Commutating Reactor > > On 25 May 2012 18:39, Peter C. Wallace <p...@mesanet.com> wrote: > >> Ahh its a standard kind of thing: >> >> www.mtecorp.com/SineWave_Filter_4pg_Form1214A-2.pdf > > The Mesa cards can output a 3-phase PWM. Presumably a lot of the cost > of the PhasePerfect is the control software... > (I also suspect that they might have acetic switching to "dump voltage" too. ) > > > > -- > atp > If you can't fix it, you don't own it. > http://www.ifixit.com/Manifesto >
With a inverter of any type, a post filter is likely needed so the mill infeed sees nice 3 phase sine waves rather than x KHz rectangular pulses waves with sinewave PWM modulation (I notice even automationdirect has 3 phase line inductors) > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ 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