Actually the US export regulation is 600 hz. I worked in servo drive development.
On Sat, Sep 25, 2021, 8:35 AM Gene Heskett <[email protected]> wrote: > On Saturday 25 September 2021 07:53:08 Stuart Stevenson wrote: > > > No idea if the following is true but the source was knowledgeable. > > > > years ago I was told 400 hz was as fast as a control could supply per > > a government regulation limiting VFDs so plebes could not build fast > > enough centrifuges to purify uranium. > > > > I stand ready to be corrected. > > > > Stuart > > Hummm, makes perfect sense Stuart. I wonder if its buried in the ITAR > regs someplace? I've not seen a discussion on that in years, since > Hitachi-America gave away the farm all those years ago. > > Take care now. > > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author, 1940) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
