Arcs around glassplate
As you can see, we opened up the ballast completely. The current on the primary side (at 230V) in this arrangement with 34cm arclength was approx. 2A.
A shot at low voltage:
at medium voltage:
and at full voltage:
The big mystery is that the arcs won't made it around the glassplate if we remove the ballast. High frequency ringing (resonance) through the xfmrs?
On 6th August 2006 the Teslathon organisation team hold
a workshop at Tonis house to discuss the last Teslathon2006. Toni couldn't
attend the Teslathon, so we performed a small one the day after where we
electrified the glass plate (again 34cm arcs around the edges):
Here you can see the setup with the new mounting of the caps and resistors:
Look at the corona appearing at the resistors:
You even can see the traces of the arcs on the glass plate after shutting
off the power:
Here is a short videoclip we made during that day (click the image):
For a new setup in March 2009 for a private show in Mai I made a new stand for the RC-combination:
I tested the two 20kV-xfmrs successfully in a JL-arrangement and nearly fried my "small" 12A-variac :-)
After that I tried the glassplate experiment with the small variac (first time, before we always used a bigger one) and I even got the sparks without the RC-combo connected - not much but at least some. This convinced me that the caps just raise the voltage due to 50Hz resonance. Therefore an easier way should be to connect matched caps on the primary side (to be tested).
On the private show:
At the GTL-Teslathon2009:
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