Simple to build isolation transformer that consumes less power than it gives out

[JouleSeeker]

  On this end, I put together another build of Jack's, using this time two 1:1 toroidal trafos (photo).  Like Wattsup, I have tried various things -- but the best I have been able to do so far with off-the-shelf matched trafos is about 88-95% efficiency = Pout/Pin.  I find that as long as I use CONSISTENT  methods for input as for output, the ratio Pout/Pin is about the same between methods.

  I've learned a lot (I think) taking measurements by various means.  The photocalorimeter I'm using (a fancy name for a light box) has been very helpful in discerning when output power REALLY goes up or down.

   It is a fun build, educational -0- thanks, Jack, and hopefully you can tell us more pointers.  Wattsup mentioned some questions -- I would ask just how you measure Pinput and Poutput; its always good to re-check those measurements. 

[Jack Noskills]

Resistance of coil I used in iron trafo (5000 permeability) was 165 ohms, very thin wire, 0.0x mm. Coil is about 10 mm wide so it is very dense.

Resistance of 280 meter Litz nanoperm (80000 permeability) is about 45 ohms. I cut 10 meter piece of 63 strand litz and winded it on core. When one layer was complete I continued on top of previous. I think I got 5 layers this way until I ran out of space. In the end I had 63 10 meter coils and after build was complete I got two coils each formed from 28 10 meter coils in series, 280 meters. I used litz only to make winding job easier, no other purpose. Litz trafo looks messy with 63 wires sticking out, my 4 year old kid called it the tree: 'Daddy, are you making those trees again ?' I made 5 of those but now I have only one left as I needed to test other stuff, not much success with those though.

Resistance of 400 meter nanoperm trafo is about 68 ohms, outer diameter of the core is about 63 mm, inner 48 mm. With coil on it inner diameter is about 12-15 mm. I got it ready yesterday but did not had enough time to play with it. I got 150 watt halogen to light up in normal trafo mode, not sure if I got full brightness but it is pretty damn hot as my desk starts to smell bad. 10 meter lemgths are in series separated in two different sides. Entire trafo weighs 899 g/ 1.978 lbs, plain core weighs 186 g/0.410 lbs. The idle current of one 400 meter coil is still too high when compared to iron version, it can light up 40 watt bulb. When I connect those 400 meter coils together, idle current without load is such that 1 watt led light flickers, 7 watt energy saving gas lamp puts out no light. This is good enough but not perfect, it is better than 280 meter nanoperm as I thought it would be.

I cannot measure impedance, but it must be pretty high if it can block 25 amp mains that spits out 220 volts below 1 watt when two coils are connected together. With iron trafo one coil is enough to block it.

With these specs (is there enough ?), how does your trafos compare with mine ?

As I dont have any meter I measured the 2 trafo version using 40 watt bulbs. With no load I got dimm light on primary side, below 10 watts for sure. With 40 watt bulb as load on secondary I got it up to 30 watts, no change on light level on primary side. When first trafo was iron and second was litz nanoperm light on primary side went down and output bulb was brighter. With parallel cap in the second trafo light on primary side disappeared and output bulb was still brighter. This made me think I have something usefull going on.

Steve, I see your trafos are about the same size as mine, what is the resistance of your coils and permeability of the core ? Did you try reversing the coil that is parallel with load in the second trafo ? You should see major difference. What about idle currents without load ? If it can light up bulb (in series with those two coils in second trafo) without load then it will not work too well. I suspect that this is the problem now, impedance is too low and input power bypasses load and goes via coils. This will certainly ruin the OU effect.

[Jack Noskills]

Did some testing with 2*400 meter nanoperm.

Normal trafo mode, I put 170 watts worth of bulbs on primary side, 150 watt halogen lights up on secondary side but not too much light. Primary side show bright light on every bulb, normal trafo effect. If I bypass the bulbs with thick wire I got more light on output but there a lots of amps going as the primary gets hot to touch. Core seems to saturate and it is unable to deliver this power to output. I am unable to see any light in 300 watt halogen in this mode.

Generator mode, same amount of bulbs on primary side and no light in any bulb, not even a faint glow. 150 watt halogen is brighter on load side when compared to normal trafo mode. When I bypass lamps this time, halogen gets brighter but there are no amps flowing like in normal trafo mode. 300 watt halogen lights up but it starts to draw current as there occurs faint glow in the bulbs. So if load takes more power than core can create only then it starts to suck power from the mains. With two trafo setup this does not occur as there is trafo infront which limits the draw.

Both nanoperm versions I have are not good enough to be used as the first trafo because of high idle current. Only the iron trafo is good. With iron trafo in front and 400 meter nanoperm as the second there is no light on primary side and bright light on output.

If someone has metglass high perm C core then experiments would be much easier at grid frequency as you dont need to wind toroids.

Only thing left for me would be to buy watt meter and measure what comes in. If output waveform is rectified sine then most likely it would give false readings for output power, so does not make much sense to measure it like this. And DSO and stuff like that are out of my reach. This is low power and I am not interested in getting few hundred watts for free, high frequency is the next step. This would require signal generator and oscilloscope which I dont have. So for now I am relying on forum members to investigate this further and I have put information what could be done next.

[Qwert]

Resistance of coil I used in iron trafo (5000 permeability) was 165 ohms, very thin wire, 0.0x mm. ...

Yeah, that's really thin. I would say, that's no wire at all. I know, that's not a mistake; it's within this range, but anyway, somewhat more specific...

Edit: sorry, I wrote the above just after reading the first sentence. In the later it explains satisfactorily.

Edit: since I already interrupted this precious thread' spirit, I want to use it for my (maybe not my own) purpose: somewhere within last two or three months in another thread I posted my idea to try an idea described in this document: Otto's TPU notes
Since it requires using a trafo and some other equipment which I do not possess, may somebody try this? I consider to finance (from my frugal resources) the additional (pretty expensive) material used in this project, for one or two serious guys.

[T-1000]

If you are winding up custom 1:1 trafos, you might try this winding configuration and see results  in Jack's circuit - http://www.youtube.com/watch?v=UFcd_QCLK5w#t=0h12m22s

The main difference there between Litz wire and bifilar layer is - the magnetic field concentration and resistance removal when each layer is winded on bifilar mode. It is like forcing two magnets stick with same plorarity ends (you might try this and realize magnetic field configuration and strength on junction point and from sides). Also if you will wind primary on bifilar layers mode, your secondary should be on side  of primary not on top. On toroid it would be half toroid with primary and second half with secondary.

Would be very interesting to see results on this...

P.S> In http://www.overunity.com/7679/selfrunning-free-energy-devices-up-to-5-kw-from-tariel-kapanadze/msg330683/#msg330683 I explained theoretical part of it.