Reactive power - Reactive Generator research from GotoLuc - discussion thread

[verpies]

Hi Verpies,
My experience doesn't agree with this... Bulbs show any real power...
I've found I can run an incandescent bulb on the output of a car ignition coil (maybe 5000v, 1000Hz) at 40w, or an MOT (2000v ish), and it's exactly as bright as it is with 40w mains (at 240v AC, 50Hz). Just the same...

But that's different.  You are referring to measuring output power and I am referring to measuring input power.

When the bulb is the measuring device and the sole load at the same time (as it is on the output side), then it is an accurate indicator of power.
However, an incandescent bulb does not work well as an input power indicator because it is not the entire load on the input side.  Read about MPTT.

[verpies]

The input circuit is of high voltage and low current (hence little to no illumination of the series input bulb), and the output circuit is low voltage and high current, hence the output bulb lights.

That's true.

Now all that's missing is an explanation why the input circuit of a 1:1 transformer operates at higher voltage than the output circuit.

P.S.
According to the video, the primary winding forms a parallel LC circuit and the secondary winding forms a series LC circuit.

[DilJalaay]

That's true.

Now all that's missing is an explanation why the input circuit of a 1:1 transformer operates at higher voltage than the output circuit.

P.S.
According to the video, the primary winding forms a parallel LC circuit and the secondary winding forms a series LC circuit.

As at high frequencies, rules changed, now the 1:1 transformer will not behave same as at low frequencies.


Just my thoughts, looking for the experts opinion.

[poynt99]

That's true.

Now all that's missing is an explanation why the input circuit of a 1:1 transformer operates at higher voltage than the output circuit.

P.S.
According to the video, the primary winding forms a parallel LC circuit and the secondary winding forms a series LC circuit.

Because the circuit(s) are in resonance (Fo), and a parallel LC circuit (input) has a high impedance and high voltage at Fo, while a series LC circuit (output) has a low impedance and high current at Fo.

[gotoluc]

Hi PW, poynt99 and all,

I have a new video of the same Bifilar Troid under test but using a 1 Ohm 5% Metal Film Resistor as CSR.

The other change is I thought of the trick of using a magnet on the toroid core with a pickup coil to see if I could pickup power at a lower frequency then Mhz range.
Turns out I can light an LED at 625Hz with zero cost to the input power. However, we still have a problem as the mean is Positive with Ch 2 inverted or a Negative with it not inverted.

I'll leave it to you Pros to figure out. Anyone is welcome to join in if you feel up to the task.

Link to video: http://www.youtube.com/watch?v=cQe49jH_3lA&feature=youtu.be

Please note an error on my part in the video, I keep saying the time division is micro seconds when it's mostly all in milli seconds.

Luc