Bonjour,
I'm working on a DC arc generator. This generator is able to create an arc beetween two electrodes of tungsten. The DC Voltage is about 300V and the arc is stable. I measure the arc voltage of about 200V for a gap of 1mm.
I have found figures with the arc voltage and current for different gaps here : http://www.arcadvisor.com/faq/dc_direct_current_arc.html.
This figures tells that the voltage must be of about 50V for 10 mm gap, and this is in condradiction with my measure.
My question : is my measure false (have i ommitted something) or are the figures false ?


Thanks

Nobody knows ?

Please provide the generator load curve.

- Michael
www.arcadvisor.com

The generator is a simple transformer whith a rectifier device to generate DC voltage.
I haven't got yet the generator load but what i'm sure is that it's neglgible to the resistive serial load I added for arc current control.
How can this generator load change the Arc voltage ?