Scott, these voltages are essentially the same: the supply is a 400 V AC (between any 2 phases), 3-phase (3-wires is delta configuration, 4-wires is star configuration), and the 230 V AC, 1-phase is the voltage between any phase and neutral.
230 * sq.rt 3 = 400 Regards, Naftali On Mon, Jul 20, 2009 at 12:12 PM, Scott Xe <[email protected]> wrote: I am seeking the information on the normal power supply for electric cooker in the kitchen of Sweden & Norway. It says the power supply varies in 1-ph 230 Vac or 3-ph 400 Vac in 3 wire or 4 wire system at 30A or above. What is the main reason to have different type of power supply instead of unique one in one country? Your advice is appreciated. Thanks, Scott - 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]>
