Thane Heins Perepiteia.

[gotoluc]

Hi All,

@gyulasun, sorry you feel I was avoiding to answer your question of the DC resistance of the primary. You are right it is very low, it was maybe about 9 Ohms. I say was, because since then I'm now testing primary no. aah   lost count  and I still need to test other configurations. I was waiting to get closer to the better design before giving information. The best results so far have been around 6 to 8 Ohms.

@all, Today after working two 7 day weeks at the Ottawa U lab, I have decided to stop posting or looking at this tread for the next 2 weeks or more if needed. What is needed is real physical help with the project and I also need to stay focused on just that. If anyone here can come and help with the development please PM me and I will arrange to meet you at the lab.

Thank you

Luc

[OilBarren]

Hi Thane, I think I have always hit a normal tone in my letters here yet you or Luc still avoid answering...I mean for instance my mail here http://www.overunity.com/index.php/topic,4047.msg81771.html#msg81771
Thanks, Gyula

GYULA PLEASE INDICATE YOUR "INSTANCE" SO LUC AND I CAN BE CERTAIN WHAT WE ARE AVOIDING?

"Hi Luc and Thane,
Thank you for the test results.  The data you measured indicates to me that the primary coil has got very low number of turns for your 60Hz mains voltage, the coil inductive reactance I think is very small:  at 2V AC input from the variac the 2A current is extremely high and I do think it oversaturates the core the primary is wound on.

If you are aware of this saturation and you designed it on purpose, than it is ok but for me it is an unwanted situation in case of electric transformers in general. 

In oversaturated cores the average current hardly changes when you try to utilize its fluxchange but fluxchange can only occur in your primary when your (sinusoidal) input voltage is small enough not to cause a current level from which saturation starts.  i.e. from ,say, zero to 0.5V AC input there is no or very little core saturation and as the sinus voltage exceeds  0.5V and goes up to your 2V, the current goes to high peak values during this time.  This could be observed by watching the waveform of the current in the primary by an oscilloscope as a voltage drop across a 0.1 Ohm noninductive resistor placed in series with the primary coil. (Be sure to use a mains isolating 1:1 transformer when you derive your 2V from the variac that is fed by the mains directly and use a scope on the mains side too.)"

rgds,  Gyula

Thanks
Thane

[gyulasun]

Hi Thane,

I think I have always hit a normal tone in my letters here yet you or Luc still avoid answering...
and I would also ask what was your primary coil's  DC resistance (copper resistance) in that experiment?

Thanks,
Gyula

WE HAVE ABOUT 200 PRIMARIES TO DATE AND COUNTING - WHICH ONE DO YOU WANT THE RESISTANCE OF?

Thane

Hi,  and thanks for the question.  I gave the link which test I thought of the primary coil resistance, it was this test here:
http://www.overunity.com/index.php/topic,4047.msg81771.html#msg81771 or any other primary coil DC resistance you or Luc used for tests and on which you both gave the test results here on the Forum.  (So I mean the toroid core #2 and #3 for which you used the primary as input power receiver).

Thanks,  Gyula

[gyulasun]

Hi Luc,

OK, now I received the answer, thank you.  Thanks to Thane too.

Gyula

[aether22]

AETHER, I HAVE THE ROTOR READY FOR YOU - WHAT IS YOUR SHIPPING BUDGET?
I.E. HOW FAST DO YOU WANT IT? ALSO IS YOUR DRIVE SHAFT 1/2 INCH.

It is $60 right now (rather sad since $50 was donated), and another $50 or more from the 8th of April and another $50 (total of $160) from the 15th.

And yes it is half inch.

Actually make that $70 right now and $100 on the 8th and 15th of april, forgot how much better the NZD has been doing against the US of late.