Transverter technology anybody?

[citfta]

Can you use three (3) transformers and wire them up as a 3 phase transformer?

If yes, do it have to be three identical trafos in order to get it to work?

Sorry if this is a silly question, I have read that it can be done, but i wanted your input.

/F.

No.  In real 3 phase power each power phase is 120 degrees out of phase from the phase before and the phase after it.  You can't create that from single phase with only transformers.  You can use capacitors to shift the phase enough to fool a 3 phase motor into starting but only if the motor has a small load or no load on it.  Once the 3 phase motor gets up to speed you can then load it to use it for work but the real power of the motor will still be below the normal power it would have if it was connected to real 3 phase power.

[antimony]

No.  In real 3 phase power each power phase is 120 degrees out of phase from the phase before and the phase after it.  You can't create that from single phase with only transformers.  You can use capacitors to shift the phase enough to fool a 3 phase motor into starting but only if the motor has a small load or no load on it.  Once the 3 phase motor gets up to speed you can then load it to use it for work but the real power of the motor will still be below the normal power it would have if it was connected to real 3 phase power.

Ok, I'm just getting started reading up on AC power, phases and all that, so i didn't fully get your post I must admit. 😄
I really appreciate you taking your time trying to help me out, and i feel a bit like a pain in the ass.

I will read the information on peswiki on the TV again to see if i can understand it a bit better than yesterday, but if i follow the circuits that are available for the RV and the TV with the caps and all, do you think I could get it to work, or are there no way around getting a three phase transformer first?

I am reading a article on a site called electrical4u.com about using three single phase transformers to make a three phase system.

[citfta]

Is this what you are referring to?
Three Phase Transformer & Single Phase Transformer - Former is generally used in three phase power system as it is cost effective than later. But when size matters, it is preferable to use a bank of three single phase transformer as it is easier to transport than one single three phase transformer unit.

This statement does not mean you can convert single phase to 3 phase with 3 single phase transformers.  What they are talking about is to use separate transformers for each phase.  But each of those is fed from a different phase from the generating station.  As I said you cannot generate 3 phase power from using 3 single phase transformers when you only have a single phase source.

[antimony]

Is this what you are referring to?
Three Phase Transformer & Single Phase Transformer - Former is generally used in three phase power system as it is cost effective than later. But when size matters, it is preferable to use a bank of three single phase transformer as it is easier to transport than one single three phase transformer unit.

This statement does not mean you can convert single phase to 3 phase with 3 single phase transformers.  What they are talking about is to use separate transformers for each phase.  But each of those is fed from a different phase from the generating station.  As I said you cannot generate 3 phase power from using 3 single phase transformers when you only have a single phase source.

Yes, that´s the one i was reading then, but i haven´t finished it yet.
I will finish it today, but im glad you cleared that out.

I first got the idea from this text here at the second part of this quote.
Here is the link to the peswiki site. http://peswiki.com/directory:transverter

(Both have the same kind of efficiency, however working with a 3PH system is more convenient, as you have a rotary field, whilst in the TV you have a static field.

(you could however make a 3PH TV with 3 single phase transformers or with a 3PH transformer)

I found these two guys on yt yesterday that have a few videos about the TV (ish)
I haven´t really watched these, but i noticed that both are using selfmade transformers.

https://www.youtube.com/watch?v=i83nR-Xb00Y

And this is the other guy.
https://www.youtube.com/watch?v=S26CFzEGZvs

Do you have knowledge of anybody other then these guys that have tried to, and that have replicated the TV?

Im sorry if i am being a pain. I really appreciate your help.

[citfta]

I don't think you are being a pain.   I think you are just trying to learn.  Unfortunately I don't really know anything about the TV.  I am a little familiar with the rotoverter but never tried to make one.  From the articles you linked to it looks like they are trying to make use of the ferroresonance of the transformer core material.  The Peswiki article is talking about a particular type of transformer used in industry that maintains a fixed output voltage under changing conditions of either load or input voltage.  They can maintain an output voltage of 120 volts under a wide range of load conditions and with an input voltage from 90 to 140 volts or so.  They are a special type of transformer that is also very expensive.  One of those will cost more than a small 3 phase motor.

There is not enough information in the two videos of the guys who made their own transformers to even begin to guess what they are doing.  But it appears they are only using single phase transformers.  I am not sure why you think you need a 3 phase transformer.

From the responses you have gotten on this forum it appears no one else here is familiar with the transverter either.  Maybe someone else will see your posts and add some more information.