| Hi all. I've been trawlin' the board for a while now, and starting to get things together to build my first mill. I've extracted a ton of info from Otherpower and this forum, (which is a bit overwhelming, perhaps intimidating) but I've managed to get a lot of things figured out. I'm waiting on Hugh's book to arrive, which will no doubt probably answer most my remaining questions, but I'd like to field a few here as well. In this case, I'm trying to figure out which configuration to wire the stator.
From what I've read, using the same coils, wiring in wye will give you higher voltage with lower amperage, and a lower cut-in speed. Delta gives lower voltage with higher amperage, and a higher cut-in speed. But running at equal RPM's, the delta will provide higher wattage overall (mathematically anyhow) due to the lower resistance.
Seems to me wye would be better for low wind performance, delta for higher wind situations. (that is using the same coils) So my question is, (ya knew that there had to be one in here somewhere) what would be the result if the delta configuration had some extra turns in the coils to make up some of the voltage difference comparable to the wye configuration, to get the cut-in speed down a bit?
Just in my mind's thinking, I'd expect a voltage rise, with a slight resistance rise, providing a higher amperage, and overall wattage increase, now at a cut-in speed comparable to the wye configuration. I know Ohm's Law, but many of the formulas I've seen discussed here are a bit beyond my (current) understanding to accurately conclude the results. I realize nothing comes free in physics, but I'm curious. So, what would happen? Benefits? Consequences? Opinions?
Thanks for listening to my rambling mind.
Rod |
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