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 Post subject: Arc Voltage accross 1mm Gap
PostPosted: Fri Jun 19, 2009 10:28 am 
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Joined: Fri Jun 19, 2009 10:04 am
Posts: 16
Location: France
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


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PostPosted: Mon Jun 22, 2009 2:03 am 
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Nobody knows ?


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PostPosted: Tue Sep 15, 2009 3:59 am 
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Joined: Wed Jun 10, 2009 5:00 pm
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Location: Toronto
Please provide the generator load curve.

- Michael
www.arcadvisor.com

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Michael Furtak, C.E.T.
http://arcadvisor.com


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PostPosted: Thu Nov 19, 2009 5:41 am 
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Joined: Fri Jun 19, 2009 10:04 am
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Location: France
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 ?


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