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Arc Voltage accross 1mm Gap

Discussion in 'General Discussion' started by djho, Jun 19, 2009.

  1. djho New Member

    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
    djho, Jun 19, 2009
    #1

  2. djho New Member

    Nobody knows ?
    djho, Jun 22, 2009
    #2

  3. arcad New Member

    arcad, Sep 15, 2009
    #3

  4. djho New Member

    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 ?
    djho, Nov 19, 2009
    #4

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