Hello enthusiasts!
I thought I was "finished" with my first functioning alternator. I now know how to measure current and the readings ain't good.
When I connect, through rectifiers, to car battery(tried different batteries,state of charge) I have, at 156 RPM's, 12 V and about 100 mA...
When I put a 12 V, 4,6 A (measured 0,3Ohms in cold state) there is 0,33V and 1A through the connection.
The magnets: 12x2 N42, 1" diameter, ~2/5" hight(25mm x 7mm). Theoretical lift power
12 Kg.
The coils: are 9, 100 windings with approx. AWG 21 or 0,75mm diameter( 0,44mm2)
So there are three phase connected in star. Three "starts together and three outputs.
I also made another generator 12V -0A!
I've uploaded some photos of the making.
Where'sthe problem? There is too big gap between the magnets? I thought that was necessary to prevent a coil leg to get north and south pole at the same time.
The magnet discs are homemade and aren't excactly round. A couple of magnets are up in the "roof" of the coils. And the two rotors are not exact mirrors of each other, but very close.
What could be the biggest disturbance? The coils placement or magnetism on the wrong spots to get the result 0, or close to, 0 Amps?
Thankful for any thoughts about this subject. MAny people must have had the same problem but I couldn't find the right info I need on this discussion board.
Gunson
big pic
all photos in a post need to be under 150kb and less than 640 x 480 pixels. thank you.
Kurt