The output is ac, so use a voltage boost transformer. Frank Leslie -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] Behalf Of chilechinadollz Sent: Thursday, October 20, 2005 4:11 PM To: [email protected] Subject: [microhydro] re: induction motor as generator derated to 50Hz
Hi Nando, Wayne, Manfred and all, First thanks again for the help. My research to date regarding differences between 50 Hz and 60 Hz machines, seems to indicate no difference between the number of poles. The motor will have either 2,4,or 6 poles and that will determine rotation speed at either of the two frequencies. What I haven't yet determined is the effect on voltage. I suspect that 50 Hz machines may be wound differently. If I take a 60 Hz, 230 V motor and spin it slower to get 50 Hz, I will probably also get a lower voltage. Not good of I want 230V, although I've read that I may be able to up the voltage by changing the capacitance. Will have to delve into this more. Of course I could just buy a 50 Hz machine in Chile, but I can find good prices on new/surplus motors here on eBay. For example, I can get a 25hp, 3 phase, industrial built new motor here for $100. I don't think I could touch that motor for less than $800 new. I can also get inverter duty motors here. I don't have the foggiest of where to begin to find similar stuff in Chile. Of course there are shipping costs involved, but I'm going to ship a bunch of stuff down in a container anyway. Martin Does your company feature in the microhydro business directory at http://microhydropower.net/directory ? If not, please register free of charge and be exposed to the microhydro community world wide! NOTE: The advertisements in this email are added by Yahoogroups who provides us with free email group services. The microhydro-group does not endorse products or support the advertisements in any way. More information on micro hydropower at http://microhydropower.net To unsubscribe: send empty message to [EMAIL PROTECTED] SPONSORED LINKS Energy management Energy gels Energy conservation home Energy savings Energy Energy audit ---------------------------------------------------------------------------- -- YAHOO! GROUPS LINKS a.. Visit your group "microhydro" on the web. b.. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. ---------------------------------------------------------------------------- -- [Non-text portions of this message have been removed] ------------------------ Yahoo! Groups Sponsor --------------------~--> Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/FGYolB/TM --------------------------------------------------------------------~-> Does your company feature in the microhydro business directory at http://microhydropower.net/directory ? If not, please register free of charge and be exposed to the microhydro community world wide! NOTE: The advertisements in this email are added by Yahoogroups who provides us with free email group services. The microhydro-group does not endorse products or support the advertisements in any way. More information on micro hydropower at http://microhydropower.net To unsubscribe: send empty message to [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/microhydro/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
