Would it be sensible to test it in both transient (warm up) and in steady state operation? If the transient operating condition was brief (say < 5 minutes) then I would argue that it could be waived as a mode of operation needing 61000-3-2 evaluation. A minimum period of 'disturbance' likely needs to be defined. _______________________________________ _____________________________________________
Ralph McDiarmid | Schneider Electric | Renewable Energies Business | CANADA | Compliance Engineer From: John Woodgate <[email protected]> To: [email protected] List-Post: [email protected] List-Post: [email protected] List-Post: [email protected] Date: 04/22/2010 12:40 AM Subject: Re: [PSES] Harmonic Emissions Testing ________________________________ In message <[email protected]>, dated Wed, 21 Apr 2010, "Kunde, Brian" <[email protected]> writes: >If an instrument could operate in different modes at different current >levels, what do you use as the Reference Fundamental Current in the >61000-3-12 test? The maximum Fundamental Current of the instrument in >any mode? > > > >In section 4.1a of the 61000-3-12 test, it says, ?During the >measurement of the reference fundamental current, the r.m.s. line >current shall be equal to the rated line current Iequ stated by the >manufacturer?. I?m not really sure what this means unless they are >saying it is measured when the device is drawing maximum current. This issue has already been raised and will be discussed at a meeting of the IEC committee next week. I cannot predict the outcome, but there is wide agreement that 'something must be done'. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK I should be disillusioned, but it's not worth the effort. - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc <http://www.ieeecommunities.org/emc-pstc> Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ <http://www.ieee-pses.org/> Instructions: http://listserv.ieee.org/request/user-guide.html <http://listserv.ieee.org/request/user-guide.html> List rules: http://www.ieee-pses.org/listrules.html <http://www.ieee-pses.org/listrules.html> For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]> ________________________________________________________________________ This email has been scanned for SPAM content and Viruses by the MessageLabs Email Security System. ________________________________________________________________________ - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]>
