Monthly Archives: November 2010

Testing an alternator for a 12 footer at Otherpower

Posted on 23/11/2010 by hugh

Dan Bartmann in action at Otherpower building and testing a new design alternator for a 12 footer (3.6 metre diameter turbine).  See his full description on the otherpower discussion board of this machine with 15 inch magnet rotors, and thick … Continue reading →

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work platform

Posted on 21/11/2010 by hugh

Nice photo by Stephen Smith, from Alan Engelstad in Canada.

Posted in construction | 2 Comments

Wind turbine controllers for optimising blade speed

Posted on 10/11/2010 by hugh

Efficient wind turbine alternators connected directly to batteries do not have the right speed range to make the best use of the blades.  Adding a controller that converts the voltage between the windmill and the batteries can improve performance (rather … Continue reading →

Posted in products/technical | 2 Comments

Hubert MARIN video en Francais

Posted on 03/11/2010 by hugh

http://www.consommer-responsable.fr/magazine/article/une-eolienne-dans-son-jardin-0

Posted in Books, construction, courses, France, People | Leave a comment

Counter program in Visual Basic

Posted on 02/11/2010 by hugh

Julio Costa <[email protected]> has written a simple program in Visual Basic to help him with the counting of the turns on each of the coils. “Rather than building an electronic counter, I’ve implemented it in software, so if one has … Continue reading →

Posted in construction, People | 1 Comment