Wayne : For the motor or generator the number of poles defines the RPM at certain Frequency, so a motor used for 50 or 60 HZ will have a RPM at 50 HZ equal to 5/6 of the 60 HZ RPM.
Consideration of Negative Slip when a motor and Positive Slip when a generator. Regards Nando ----- Original Message ----- From: "wayne burton" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Sunday, October 16, 2005 3:11 PM Subject: Re: [microhydro] induction motor as generator derating for different frequency > from memory I think the frequency is related to the > number of poles the machine has .so yes there should > be some difference between a 50 and 60 hz machine > .namely the number of poles > > --- chilechinadollz <[EMAIL PROTECTED]> wrote: > >> Hello all, >> >> Here is another question for the group. I am >> intending to use an >> induction motor as a generator. I am in the US >> planning to move to >> Chile where the frquency is 50 Hz. I am collecting >> the equipment here >> as I am not sure what will be available in Chile. >> Most motors here >> are rated for 60 Hz. Is there a fundamental >> difference in the design >> between a 50 and 60 Hz machine, or is it just a >> matter of derating the >> horsepower and amps? >> >> Thanks for all the help so far, this group has >> really been giving. >> >> Martin >> >> >> >> >> >> > > > > > > __________________________________ > Yahoo! Mail - PC Magazine Editors' Choice 2005 > http://mail.yahoo.com > > > > > > 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 > > > > > > > > > ------------------------ 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/
