On Saturday 03 October 2009, Andy Pugh wrote: >Are RFI filters for inverters generally incompatible with RCDs? I >fitted one to my machine today to try to get rid of the noise from the >VFD which seems to interfere with my encoders and limit switches, >however every time I power up the VFD the lights go out and the power >goes off.
Andy, Is your 'RCD' the same as what we call GFCI, ground fault current interrupter over on this side of the pond? > >The garage and shed are fed though a 30mA RCD (a requirement for power >to a shed AFAIK) and that seems to take offence to the Filter. The >filter is marked "nominal leakage curent 20mA" which might be a clue. 20 to 30 ma can be fatal under the right conditions, our GFCI's normally trip at about 20 microamps IIRC. -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) The NRA is offering FREE Associate memberships to anyone who wants them. <https://www.nrahq.org/nrabonus/accept-membership.asp> "My sense of purpose is gone! I have no idea who I AM!" "Oh, my God... You've.. You've turned him into a DEMOCRAT!" -- Doonesbury ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
