My 1st Selfrunning Generator?

[verpies]

Yes, that's my question, but as far as i can see they are in phase.

But, your video does not show that.
Perhaps you could show us scopeshots of the EMF across your 9 coils connected in series (without the variac connected) and the EMF across that 10^th coil.

...or wire a DPDT switch into the wire supplying your 9 coils to do that change "on the fly".

[verpies]

I've done that, may do a video, i also have the area calculated, which is more or less constant.

..and you begrudged us such a treat ?!

But i still wonder how voltage from the variac "beats" emf from the coils.

It shouldn't ...if the EMF from the 10th coil is representative of the EMF from the other 9 coils connected in series.

[nilrehob]

..and you begrudged us such a treat ?!

I just did it a minute ago ;-)
But I'm out of time now, hopefully I have more time tomorrow night.

/Hob

[nilrehob]

Update first showing the EMF and then consumed energy:
https://www.youtube.com/watch?v=jPs9Xa2jpG0

/Hob

[verpies]

Update first showing the EMF and then consumed energy:

Thanks for the power waveform.  I could not read the statistic from this math waveform but if it is an integral of it then the result is in Watt*seconds which are Joules (units of energy).
If the statistic displays the average of this waveform then it should be read as Watts (units of power).

However you video did not show us the phase difference between the EMF of the 9 coils and the EMF of the 10th coil, because I asked about this:

Perhaps you could show us scopeshots of the EMF across your 9 coils connected in series (without the variac connected) and the EMF across that 10^th coil.

...and your video showed this:

"scopeshots of the EMF across your 9 coils connected in series (without the variac connected) and the EMF across that 10^th coil, with the EMF of the variac added"