Reactive power - Reactive Generator research from GotoLuc - discussion thread

[hartiberlin]

Indeed. Inductance in the CSR results in a larger current being measured. The inductance of Luc's CSR is unknown at this point, but should be measured.

Well yes, but the 0.1 Ohms shunt does not have a big inductance compared to the
MOT and thus you can neglect that inductance from the shunt.
It would not pose a big error margin.

I wish I had the time now and the components to do measurements myself, but I have
to work on other stuff now for chrristmas unfortunately.

Hopefully Tim or some other guys can replicate it and post also a few videos
of their measurements...

Many thanks in advance.

Regards, Stefan.

[hartiberlin]

http://www.electronics-tutorials.ws/accircuits/series-resonance.html  The section "Phase Angle of a Series Resonant Circuit"

Well if Luc did not invert the shunt current channel on his scope, the current is capacitive and thus the voltage is lagging and the current comes first.
That tell us that his LC circuit resonance frequency from MOT Inductance and his 5 parallel caps must be way below the
60 Hz frequency and that it reacts capacitive and not inductive to the grid..hmm...

[poynt99]

Well yes, but the 0.1 Ohms shunt does not have a big inductance compared to the
MOT and thus you can neglect that inductance from the shunt.
It would not pose a big error margin.

Stefan, what you are failing to realize is that the issue is with the CSR inductance compared to the CSR resistance which is what matters, not the relative inductance between the MOT and the CSR.

However, most likely the CSR inductance is below the level that would cause any significant error at 60 Hz.

[Farmhand]

I just realized a new thread has been started for discussion, very good idea Stefan. I'm sure many of us appreciate that.

I wanted to reply to Tim's post here - http://www.overunity.com/14013/reactive-generator-research-for-everyone-to-share/msg378726/#msg378726

Nice setup Tim firstly. I like your capacitor box, very useful thing to have. I would like to make a box like that with long throw switches to make sure there is no arcing to "switched out capacitors", I'm assuming your setup is fine, but I see some switches that have fairly close contacts when off and have had a wall switch arc over in an off grid experiment with about 600 volts applied and maybe some spikes involved. But with resonance we might get higher voltages but not spikes.

Here is a couple of clips of my TC sparking and lighting some bulbs, in the lighting vid I show the amp input but the voltage is out of view it does drop a bit, the amp meter is fairly steady. Lighting bulbs and spewing RF and sparks is not very efficient but fun. 

Spark run.
http://www.youtube.com/watch?v=1nkJtrKCdFg

This clip shows the big Tesla coil at the back, saves me posting a pic. Sorry for the mumbling, I'm not really saying much anyway. Just messing around, trying stuff.
http://www.youtube.com/watch?v=6Y1U1PSmAjQ

.....


Now back on topic, I think I agree with Stefan. It's kinda what I was getting at in the post before Tim's post that I linked above.

Coming from a higher frequency and tuning down with capacitance and going way past would mean a much lower resonant frequency. The effect of that I'm not so familiar with but I have done it at HF with air core TC's simply by exciting the transformer with a higher frequency till it happens.

I still say if a person has to produce their own AC power, these odd methods of trying to get some free energy won't be free at all. Creating lots of reactive power is not in my opinion a good idea.

One of the reasons I want to get the power factor of my Tesla coil as close to 1.0 as possible as so I might be able to run it from an inverter without making the inverter a smoke hazard.  If there is not much energy being sent back to the inverter it might be able to handle it, I have a true sine wave inverter 800 Watts designed to run inductive loads, it's transformer has one of those micrometals T650-55 Toroids in it. I haven't tried it yet though. I want to watch the power factor as I run up and down the BPS on the spark gap.

Cheers

[poynt99]

Well if Luc did not invert the shunt current channel on his scope, the current is capacitive and thus the voltage is lagging and the current comes first.
That tell us that his LC circuit resonance frequency from MOT Inductance and his 5 parallel caps must be way below the
60 Hz frequency and that it reacts capacitive and not inductive to the grid..hmm...

It tells us that the circuit appears capacitive.

However, with 25uF at 60Hz, the most phase shift you can get is about 45º, with the inductance at 0H.

In order to get 90º of phase shift between those two measurement points where i leads v, the inductance would have to be 0H, and the capacitance only about 1uF.

The only explanation I can think of for what Luc is showing us, is that the circuit is highly inductive, and one of the scope channel signals is inverted.