I have seen reactors used to quiet a vfd. A reactor is merely a coil of wire.
On Tue, Jul 27, 2010 at 3:57 PM, Andy Pugh <[email protected]>wrote: > On 27 July 2010 21:43, Don Stanley <[email protected]> wrote: > > > The solution was a 5% KDR filter from TCI in Milwaukee Wi in the VFD > > output. > > I suspect some ferrite beads on the output lines helped with my rather > troublesome VFD noise problem. Though I also added an input filter and > shielded power cables at the same time, so don't have the data to > deconvolve the various effects. > > The input filter was initially troublesome, tripping the ELCB in the > main supply. The solution I found was to power the VFD through a > zero-crossing SSR controlled by EMC2. As the mains voltage is always > zero at switch-on there is no current spike into the filter caps, and > no tripping of the breaker. So far it has been a 100% success for > about a year. > > -- > atp > > > ------------------------------------------------------------------------------ > The Palm PDK Hot Apps Program offers developers who use the > Plug-In Development Kit to bring their C/C++ apps to Palm for a share > of $1 Million in cash or HP Products. Visit us here for more details: > http://ad.doubleclick.net/clk;226879339;13503038;l? > http://clk.atdmt.com/CRS/go/247765532/direct/01/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- dos centavos ------------------------------------------------------------------------------ The Palm PDK Hot Apps Program offers developers who use the Plug-In Development Kit to bring their C/C++ apps to Palm for a share of $1 Million in cash or HP Products. Visit us here for more details: http://ad.doubleclick.net/clk;226879339;13503038;l? http://clk.atdmt.com/CRS/go/247765532/direct/01/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
