Bi-Toroid Replication/Rebuild and Testing O.F.G.P

[ofgp.fdi]

Hello,

we are interessted in doing things bringing people forward.
We read about the Bi-Torroid Transformer from Thane Heins. That sounds to good to be true. But there is only one way to know the truth.
We decieded to build our own one.
Here is the Video from the Transformator and how we tested it(Also with results)
http://youtu.be/j-dZj4-PU9s
We hope to help people who want to do the same thing and help them saving money and time.
When you have questions, please ask.

Kind Regards
O.F.G.P

Sorry for my english

[dieter]

hi, good to hear somebody is doing a BTT replication. Too bad youtube has declared war to me, in becoming pure PIDA by crashing my varioud browsers frequently, refusing to play, acting like malware by disallowing me to close that Tab (!)... Long story short, I would like to see less tube links and more fotos, diagrams and test data.


Since the BTT is so simple, I make one as a side project, tho I may not be able to test it without an oscilliscope. Well, actually I could just add a significant load like a few hundred watts, then turn all other devices off/disconnect them from mains, then go and watch the watt meter in the ceilar.


This is something I would like to discuss: the BTT claims to remain 90 out of phase, regardless of the load. But even although the power factor is then zero, the grid must provide the voltage and the amperes, which consumes energy. How much energy is required to provide a zero power factor? Is it really OU in the end of the day, or did we only fool the watt meter and keep our bills low? And in essence: can such a system be a closed loop, providing the reactive input power from the output?


Regards

[dieter]

ok, now I managed to watch the video. And hey, I've already watched that. I wanted to add a comment but tube didn' let me, so here it is.


Hallo erstmal, ich weiss gar nicht ob Sie's wussten, aber... so you basicly say it didn't work. You show in the oscilloscope that the power factor becomes 1 under load, which contradicts other test results, like eg.:


https://www.youtube.com/watch?v=Ivm8aaQu00w


Why did you make a 1mm Airgap? Thane stated that pressing two surfaces together is enough of an airgap. Also, your secondaries have 2 coils each, one 120v, the other 6 v... why? Are they bifilar? Did you mention the core material? Do you have access to ferrite or metglass cores (read: would you invest a couple of euros)?




Can you make a Test without the Airgap?

[gyulasun]

 

[PiCéd]

post 1:
If with no load you are not in phase and then with load you are almost (?) in phase, why not.