



Discussion
lamination thickness versus eddy currents
See Ryan Biffard's and other messages:
http://groups.yahoo.com/group/lrkto...iscount=30&l=1 Vriendelijke groeten Ron 




Hi!
I could not find a formula to directly calculate the losses there. I found this pdf with a formula on page 7. Unfortunately in german, and with a pitfall for noninsiders: The losses are in Power per Weight. And of course the formula only fits to thin laminations compared to their width. http://neu.bucherhandel.de/media/bi... und Blech.pdf servus, Martin 



Not a half but a quarter of the original losses when halving the thickness.
Vriendelijke groeten Ron 


Beaverdam Creek, VA
Joined Aug 2005
2,322 Posts

So if I made stator plates out of some really thin shim stock, say .002" (.05mm, I think...), would the thinness make up for the lack of silicon (resistance)?
Good Luck! 



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Latest blog entry: That elusive thermal...





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Beaverdam Creek, VA
Joined Aug 2005
2,322 Posts

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Good Luck! 




Hmmmm most cheap motors use .5mm lams and the better ones use .21 lams so you can expect an decrease in losses around 25%..
I'll have to see how that formula plays out with several of my motors... Thanks, B 



Prinz...I can't find out how to contact you. I've got some questions about sourcing stator laminations. Send me a PM with your email address if it's not too much trouble. (sorry for hijacking the thread...I'll delete this message soon








Maybe I'm blind...but I can not find his email on the www.powercroco.de. Could the google translator have eaten it?!!

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