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spumanti
Starting Member


Denmark
4 Posts
Posted - 03/09/2007 :  15:18:37  Show Profile Send spumanti a Private Message  Reply with Quote
Hi everyone!

I managed to get a hold of 2 fans from an old industrial cooler from a cooling room.

The fan blade has a 54 cm diameter, and looks like it will easily catch the wind, making it an easy-starter in low winds.

The motor is a 220 / 380 v AC (depending if it is star or triangle coupled).
Nameplate RPM: 1390

Would I be able to use this hugely oversized motor with the currently attached fan, or would any load on the leeds simply cause the motor to stop?

I have still to build my first wind generator, so i'm a bit exited about this find.

Nameplate:
http://davidkeis.googlepages.com/DSC01144.JPG/DSC01144-custom;size:640,480.jpg

Fan 1:
http://davidkeis.googlepages.com/DSC01146.JPG/DSC01146-custom;size:640,480.jpg


Fan 2 (i have included a pen in the picture to give an idea of the actual size):
http://davidkeis.googlepages.com/DSC01147.JPG/DSC01147-custom;size:640,480.jpg


--
there's no place like 127.0.0.1
Edited by - spumanti on 03/09/2007 15:26:32

ll81
Junior Member



124 Posts
Posted - 03/09/2007 :  17:10:22  Show Profile Send ll81 a Private Message  Reply with Quote
The motor will be a squirell cage induction motor and of no use as a generator. The blades might work though as they have a good angle on them.

woo-hoo
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fungus
Moderator



299 Posts
Posted - 03/09/2007 :  17:30:30  Show Profile Send fungus a Private Message  Reply with Quote
Yes, the motor is an induction motor, adding magnets onto the rotor will make it into a good generator but it is quite a lot of work. The blades would be good for a small generator, but look like there is no airfoil.
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Del
Junior Member



United Kingdom
369 Posts
Posted - 03/09/2007 :  18:56:11  Show Profile Send Del a Private Message  Reply with Quote
Hi guys,

could you explain what an induction motor is and why without modification it would no make a good generator. I've played wit a couple of stepper motors and got ok results but must admit don't really understand AC motors.

Thanks

Del.
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Victor
Junior Member



United Kingdom
409 Posts
Posted - 04/09/2007 :  20:32:41  Show Profile Send Victor a Private Message  Reply with Quote
http://en.wikipedia.org/wiki/Induction_motor

Del hope that helps.
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