I use a 160kVA 3-phase 208V frequency inverter with 50/60Hz output selection and ability to vary output voltage +-10%. Unfortunately it doesn’t do 230/240V so we have to use something else for smaller single phase loads when we need it.
-Dave From: Doug Powell [mailto:[email protected]] Sent: Friday, September 07, 2018 3:16 PM To: [email protected] Subject: [PSES] Making 50 Hz power Greetings all, In the past I've needed to produce three phase 50 Hz power to do safety, EMC testing as well as certain validation tests. I've used several methods including gas powered generators, electric motor-generators with different sized pulleys and of course AC Power Sources. Once again, I am faced with this need and must make a choice as to which route to follow. As for budgetary, rental is preferred over purchase and I am working in the 50 to 100 KVA range. I d need variable frequency as well as voltage adjustment for high and low line. I have a small collection of transformers to help with large voltage changes. Although I've never done it, I am also aware that it is possible to configure motor-generators with direct drive shafts and select the number of poles and RPM to change output frequency. My question is what method are most folks in this forum using when it comes to 50 Hz higher power levels? Thanks! Doug -- Douglas E Powell [email protected]<mailto:[email protected]> http://www.linkedin.com/in/dougp01 - ---------------------------------------------------------------- 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]<mailto:[email protected]>> 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)<http://www.ieee-pses.org/list.html> List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]<mailto:[email protected]>> Mike Cantwell <[email protected]<mailto:[email protected]>> For policy questions, send mail to: Jim Bacher <[email protected]<mailto:[email protected]>> David Heald <[email protected]<mailto:[email protected]>> - ---------------------------------------------------------------- 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.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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
