Re: AWP36 and Wind Machine's 101
[RE-wrenches]
At 12:00 am +1200 12/7/01, Carl Emerson wrote:
hugh piggott wrote:
> Americans seem to hate the lack of sliprings, but if you hang a
good
> length of cable, 3 single conductors, inside a tube tower,
then
> twisting really is not a problem.
Hey guys, there is a real easy way to overcome any potential cable
twisting
without resorting to slip rings and it works very well.
Use a high tensile steel wire down through the length of the pole
bolted at the
bottom and attached to the rotating frame at the top. The machine will
turn
freely maybe five revolutions before flicking back. This method has
been used
very successfully on the Clark machines here in NZ for some years.
This puts no
strain on the cable.
Unfortunately it would interfere with the furling system which
yaws the machine sideways. In any case there is no problem with
cable twist on most sites. The heavily damped yaw may play a
part in this.
By the way Hugh, I couldn't manage to access the link to the AWP curve
you had on
your last posting.
http://www.scoraigwind.co.uk/african36/index.htm
Your comment Hugh on kW/hrs
noted...
kWh not kW/h please. thank you very much. power is
already a rate.
--
Hugh
http://www.ScoraigWind.co.uk
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