Winding recommendation

[bobfandango]

...and I want to wind for 48 volts. I'm using the 2x1 rectangular magnets in the 10 foot turbine.  How many turns?  Two in hand and fewer turns? Or just get the spec'ed 15 awg instead?

Thanks

[Flux]

You can use the #16 wire but you will need to limit the maximum current to a lower value. I think the 10ft machine with rectangular magnets is very close to the limit anyway so unless you are prepared to experiment with the furling you may have trouble.

#16 is not sufficiently smaller than #15 to let you use two strands in hand and still get sufficient turns. You may possibly get enough turns of the #16 in to change from star to Jerry connection, that is the only way that I think you may be able to use that wire without a lot of messing about. If you can get 50% more turns you will probably get away with it Jerry connected, it will be slightly worse in very low winds but you will have more margin in higher winds.

Flux

[jlt]

 i was looking at other power site and it showed 140 turns 17 gauge wire for 48 volts.try winding a single coil with 16 gauge .and then trace it to cardboard cut outs . make 12 of these.try a lay out to see how big to make your magnet rotors.

[jlt]

correction; to my last post make that 9 cardboard discs

[DanB]

normally now, if we use the 1 x 2 magnets we do actually wind with #16 gage wire, and 130 turns should work out well if the magnets are N40 or N42 grade.  Like flux said, you will need to be sure if furl early - sustained output much over 600-700W is the limit if you build it like we do.

[Sly]

Hi,

What I did for my 10' Otherpower: 2" x 1" x .5" N42's, 127 turns of #15 gauge. I must admit the stator ended up 5/8" thick but cut in is still at around 140RPM. Furling: looks like I might have to increase the offset a bit, if you have not built this section yet I would suggest searching the board for various experiences.

sly