James Sweet wrote:



If the armature has windings, you need to connect to them. The only
alternator that wouldn't require any brushes nor slip rings would be one
that had just a permenant magnet on the armature.



So this one I'm looking at then doesn't exist? It clearly says
"Brushless Alternator" and there are clearly no brushes or slip rings,
just as there clearly *are* windings rather than permanent magnets on
the rotor. It's starting to sound like a magic trick.
I'll put my 2 cents in ..
Brushless Alternators are like induction motors more or less.
if you take an induction more and spin the rotor having a AC volt
meter on the stator windings with no load, you will get electrical
energy, just not a lot. Now, since there is energy is in the field, you
take that little energy which is also being induced into the rotor
area. with the coil on the rotor, you do receive some current which
gets rectified to a shunt load, this causes a DC field to generate and
once this happens, the DC field just adds too and sums up and thus gives
more to the rotor etc, it's like it's own electro magnet (DC)
there is normally a cap in there somewhere on the stator circuit that
links the stator windows and causes current regulation depending on how
much load you're drawing from the alternator.
If this cap fails, you'll get very little current output, also,
sometimes the core needs to be demagnetized.
etc..
Ok, that was as simple of an explanation i could come up with.


--
"I'm never wrong, once i thought i was, but was mistaken"
Real Programmers Do things like this.
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