Author Topic: 24 volt 10 footer  (Read 1768 times)

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breezyears

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24 volt 10 footer
« on: February 07, 2012, 01:51:03 AM »
Hello,
 I recently started a Hugh Piggott 10' turbine. I will be wiring it for 24 volts.
In the 2011 book, he calls for #15 AWG two in hand @70 turns. Does this sound right??? I cant seem to find this combo on any other site, or drawing when i look for it.
 I would imagine that it is correct, as the rest of the plans are quite thorough, its just that i don't want to go ahead and wind nine of these coils based on a typo.

Thanks,

Steve.

Flux

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Re: 24 volt 10 footer
« Reply #1 on: February 07, 2012, 03:34:36 AM »
It's probably correct. The metric version calls for 2 in hand 1.6mm at 55t urns. The magnets are different and the extra turns most likely compensate for this.

Just as a check, sticking with 24v, the metric machines have 45 turns for 8ft and 37 turns for 12 ft. If yours scale up by a similar ratio it should be ok. If the 10ft is widely different then come back and ask again.

As an additional check, it is very likely that the 48v will have 140 turns of single # 15.

Flux

breezyears

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Re: 24 volt 10 footer
« Reply #2 on: February 07, 2012, 09:56:59 AM »
Yes the 48v does have 140 turns @ #15.
Thanks,

Steve.

tecker

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Re: 24 volt 10 footer
« Reply #3 on: February 08, 2012, 02:55:58 AM »
A single coil test will set you straight . You have some Idea where you want to be as far as power and weight handling with the rotor .  The 70 turns sounds right however the thickness and rotor matching problems are laid down with a rotor test on a single coil .