Confirming the Delayed Lenz Effect

[nilrehob]

Nilrehob,

Another thing to keep in mind is how to actually connect a bifilar coil.
This can be done in a few different ways.
For maximum capacity one should use the 'tesla coil way'.
I described this elsewhere : http://www.overunity.com/index.php?topic=11009.75 , reply #88
You can see the estimated increase in capacitance is hugely dependant on the way a bifilar coil is actually 'wired', especially when there is a significant number of windings.

p.s. this is not meant as a pancake coil only. It is applicable for any wired coil.

Thats the way I've done my bifilars as well,
the only way I haven't done yet is a stack of pancake coils (bifilar or not).
The best performing coils that I have done so far is the NEATLY wound coil,
with this I mean each layer perfect without bumps and crossing.
But i will look into it again.
Thanks.

/Hob

[DeepCut]

I've upped a video of acceleration-under-load rather than just short-circuit.

The rotor speed rises by only a few Hz, and the milliamps only go down by a few but the effect is there and will be amplified with higher impedance coils.

http://www.youtube.com/watch?v=iSSOI6Yep_U

[gotoluc]

Hi everyone,

here is an update on the Delayed Lenz effect in the MOT.

I did some test that give good results by using a Capacitor in Parallel on the Primary of the Transformer.

Please note at one point in the video I say the Primary of the Secondary. I meant to say Primary of the Transformer. This kind of thing happens when I'm doing many things at the same time (shooting video, explaining and thinking of the next thing to do for the test)

I attached the scope shots of the two different Frequencies used.

Green waveform is Current (Voltage across the 1 Ohm Resistor) and Yellow waveform is input Voltage.

First shot is the Transformer @ 2.45kHz no Load or Capacitor
Second shot is the Transformer @ 2.45kHz with Load and .39uf Capacitor in Parallel with Primary
Third shot is the Transformer @ 578Hz no load or Capacitor
Forth shot is the Transformer @ 578Hz with Load and 6.8uf Capacitor in Parallel with Primary

Link to Video: http://www.youtube.com/watch?v=J9IgCHmZNeo

Please post your comments

Luc

[CRANKYpants]

THIS IS AWESOME LUC!

IS THE YELLOW SINE WAVE THE PRIMARY VOLTAGE?
BECAUSE IF IT IS THEN YOU ARE SHIFTING TO POWER FACTOR FROM POSITIVE TO NEGATIVE PRETTY MUCH AT WILL...

AT SOME POINT THE POWER FACTOR IS ZERO WHICH MEANS THE POWER TO THE PRIMATY IS ZERO.
IF THIS IS TRUE THEN YOUR EFFICIENCY IS INFINITE DUDE!

AT YOUR "LOW" CURRENT LEVELS THE POWER FACTOR IS 1 MEANING THE CURRENT AND VOLTAGE ARE BOTH IN PHASE.

BUT THEN IN THE VIDEO YOU SHOW THE POWER FACTOR GOING TO ZERO AND THEN NEGATIVE!

IF THE POWER FACTOR IS NEGATIVE YOUR TRANSFORMER IS POWERING THE LOAD BUT ALSO SENDING POWER TO THE GRID... DUDE! 

THIS HAS BEEN CONFIRMED BY COMPUTER SIMULATION AND ON THE ACTUAL OU BiTT (AT OTTAWA UNIVERSITY),

WHAT IS REALLY COOL IS HOW YOU CAN SHIFT IT LIKE THAT.

PLEASE CHECK TO SEE IF THE YELLOW SINE WAVE IS ACTUALLY CONNECTED TO THE PRIMARY WITH THE GREEN ACROSS A RESISTOR.

CHEERS
T

[teslaalset]

THIS IS AWESOME LUC!

IS THE YELLOW SINE WAVE THE PRIMARY VOLTAGE?
BECAUSE IF IT IS THEN YOU ARE SHIFTING TO POWER FACTOR FROM POSITIVE TO NEGATIVE PRETTY MUCH AT WILL...

AT SOME POINT THE POWER FACTOR IS ZERO WHICH MEANS THE POWER TO THE PRIMATY IS ZERO.
IF THIS IS TRUE THEN YOUR EFFICIENCY IS INFINITE DUDE!

AT YOUR "LOW" CURRENT LEVELS THE POWER FACTOR IS 1 MEANING THE CURRENT AND VOLTAGE ARE BOTH IN PHASE.

BUT THEN IN THE VIDEO YOU SHOW THE POWER FACTOR GOING TO ZERO AND THEN NEGATIVE!

IF THE POWER FACTOR IS NEGATIVE YOUR TRANSFORMER IS POWERING THE LOAD BUT ALSO SENDING POWER TO THE GRID... DUDE! 

THIS HAS BEEN CONFIRMED BY COMPUTER SIMULATION AND ON THE ACTUAL OU BiTT (AT OTTAWA UNIVERSITY),

WHAT IS REALLY COOL IS HOW YOU CAN SHIFT IT LIKE THAT.

PLEASE CHECK TO SEE IF THE YELLOW SINE WAVE IS ACTUALLY CONNECTED TO THE PRIMARY WITH THE GREEN ACROSS A RESISTOR.

CHEERS
T

Thane, I was drawing the same conclusion at first glance, but.....
to be dead sure, we need the total primary current, while the primary current that Luc is showing is only the current that is going through the primary coil and not the current through the parallel capacitor, at least that is what I observe from it.
The current through the capacitor should be added as well.

So, Luc can you check whether you connected the parallel capacitor before or after the serial resistor?