PSEC colleagues; Also, at 50 Hz, the inductance, designed for 60 Hz operation, allows higher currents to flow, but there is typically less cooling, due to the 15%-lower rotational speed…
Barry Rowland Munich On 26/09/2016, at 19:36 , "Brian O'Connell" <oconne...@tamuracorp.com> wrote: > How components are used cannot be controlled by manufacturer, so your due > diligence is to ship each unit with conditions of acceptability and > install/operate instructions that are scoped per the standards that would > apply to the component and to the end-use equipment. Carefully control what > is on your website and what your sales peoples say to customer. > > If a buyer or designer asks you about a use not within the nameplate ratings > or instructions, the legally correct response is the unit has been assessed > for use at the following operating conditions... blah. > > There are other things that can be said or done, but your risk increases. Do > not offer 'probably will' advice unless you have empirical test data > supporting those operating conditions; and never admit that you have test > data for operations outside of the unit's ratings. > > Brian > > > -----Original Message----- > From: Kunde, Brian [mailto:brian_ku...@lecotc.com] > Sent: Monday, September 26, 2016 7:39 AM > To: EMC-PSTC@LISTSERV.IEEE.ORG > Subject: [PSES] Using 60hz motors in 50hz countries > > Dear experts, > > Can AC brushless motors (in this case 230V~ 3-phase 3hp motors) that are > rated "60HZ" be used in products going to countries that have 50HZ power? I > believe the motors will run a little slower which will not affect the > function of the product, but is there a safety issue with this? The motors > are thermally, overload, and short circuit protected. They are "intermittent > use" and not likely to overheat. > > As a rule, we only market and sell such products to countries with 60hz > power. However, a North America company might purchase one and ship it to one > of their international locations with 50hz power without our knowledge. Do we > need to be concerned about this? > > Of course, this fact has our sales force wondering if it is OK to market and > sell 60hz motor driven products in countries with 50hz. I really don't know. > I cannot see a safety issue but one can say that the motor would be used in a > way it is not intended to be used resulting in a higher risk if something did > happening. > > Any opinions on this? > > Thanks, > The Other Brian > > > ________________________________ > > LECO Corporation Notice: This communication may contain confidential > information intended for the named recipient(s) only. If you received this by > mistake, please destroy it and notify us of the error. Thank you. > > - > ---------------------------------------------------------------- > 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 > <emc-p...@ieee.org> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used > formats), large files, etc. > > Website: http://www.ieee-pses.org/ > Instructions: http://www.ieee-pses.org/list.html (including how to > unsubscribe) > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > Scott Douglas <sdoug...@ieee.org> > Mike Cantwell <mcantw...@ieee.org> > > For policy questions, send mail to: > Jim Bacher: <j.bac...@ieee.org> > David Heald: <dhe...@gmail.com> > > - > ---------------------------------------------------------------- > 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 > <emc-p...@ieee.org> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used > formats), large files, etc. > > Website: http://www.ieee-pses.org/ > Instructions: http://www.ieee-pses.org/list.html (including how to > unsubscribe) > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > Scott Douglas <sdoug...@ieee.org> > Mike Cantwell <mcantw...@ieee.org> > > For policy questions, send mail to: > Jim Bacher: <j.bac...@ieee.org> > David Heald: <dhe...@gmail.com> - ---------------------------------------------------------------- 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 <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
