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Forum Index : Windmills : F&P comparison: data collection & rotor

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carl1
Regular Member

Joined: 16/04/2007
Location: Australia
Posts: 79

Posted: 11:05am 25 Jun 2009

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I did more poweroutput tests in the last days:
Different rotors on a F&P80SP 12V delta, twisted poles:

I have connected all three phases of the F&P 60DC 1S12P and the test results were disapointing compared to the previous single phase test.

Measuring only one phase and tripling the data is not correct. I think the magnetic saturation plays a negative role in the higher rpms.
I am playing with the idea replacing the 36 mags with 18 neos and a bigger space between, would be interesting to see the test data?

Harald

woodchips
Newbie

Joined: 05/01/2009
Location: United Kingdom
Posts: 27

Posted: 05:43pm 25 Jun 2009

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Harald

Rewire it as a star and rerun the tests, might be surprised. Delta connection really isn't a good idea with these alternators due to the harmonic currents.

Bob

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