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Re: Question about ballasting and VA



> When you vary the current limiting, you are either raising or lowering the
> charging system's effective source impedance.  Since the secondary is
> basically a fixed effective impedance at a given voltage and output arc
> level, there is indeed a "best" current to supply.  Too little, and the
> system starves for power and tries to suck more current

Here's what I observe in the field:

At low voltage I find the inductance point that produces the least current
draw at the mains. This is also the point where the coil runs most smoothly.
Then I raise voltage for the desired effect. The inductance point remains
the same over a wide range of voltages. Current draw indeed goes up
as I raise the voltage but not the "least current" point on the inductor.

Does this fit your model?

Jeff "Other Guy" Parisse

;)