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Old 08-19-2015, 11:03 PM
Farmhand Farmhand is offline
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Join Date: Jun 2010
Location: Australia
Posts: 3,387
Well Turion, I guess baselines can be useful for seeing differences that
changes have made to a setup and so forth, but the overall efficiency is
always the output divided by the input or the total input compared to the
utilized output.

A "baseline" has no place in an efficiency determination.

Honestly we could use baselines to show improvements with anything.

I can show and have shown speed up under short circuit or heavy loads with
various setups, therefore it is nothing special and has a perfectly valid
explanation in conventional "electro-magnetics".

It's a very simple setup to test.

Set up a rotor with magnets spun by a Prime mover of some description.

Determine the frequency of the magnets rotation at a prime mover speed
about 1/2 to 3/4 the maximum speed under load.

Calculate or determine by trial and error the inductance needed to obtain a
harmonic of or a resonant frequency the same as the magnet rotation speed.

Set up a generator coil with a bit less than the inductance determined in the
previous step so that when a capacitor of 1 to a few uF is added across the
gen coil resonance or a harmonic is approached before the prime mover is at
full power.

Basically if you scope the gen coil and run the setup at say 1/2 of the
maximum speed it is easy to find a capacitor size that causes the voltage
wave form to increase dramatically when the cap is connected, or to fine
tune the speed to where the effect is got.

The currents caused to flow in the coil and cap should make the prime mover
slow or use more input power.

Short or load the gen coil to cause the rotor to speed up again.

Trial and error can get the speed just right so that the effect is best seen or
not as I did in the first video I posted.

I think I used in one case about 7 mH and about 14 uF or something to get a
few hundred Hz.

In no case does the speed up under short circuit or load cause the rotor to
rotate faster than without the coils there.

And in no case does the effect cause the output to become more than the
input. Which is the important measure.

Obviously the thing to be learned here by us is that generator coils wound to
have a lot of capacitance will likely be very inefficient due to the effect in

When a generator coil exhibits the acceleration under load effect at resonance the output
of that coil is limited to much less than if the coil was used at a lesser
frequency due to frequency induced impedance.

Basically the effect is inefficient.


If Thanes setup is OU then why is mine not OU as well ?

Answer is simple Thanes setup is not OU never was.


Last edited by Farmhand; 08-19-2015 at 11:09 PM.
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