Arc impedance
Arc impedance
(OP)
Does anyone have a good reference for the impedance of ionized air? I am trying to show that the arc of a certain length would be impossible due to just the impedance of the ionized air.
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RE: Arc impedance
RE: Arc impedance
https://en.wikipedia.org/wiki/Paschen%27s_law
RE: Arc impedance
Zarc = (440*length)/I
where length is arc length in feet. A common accepted value of arc voltage drop is 440V/ft. Eventually get to a point where the voltage cannot sustain the arc.
This info is taken from "Electric Power Generation, Transmission, and Distribution", chapter 23 (Hard to Find Information on Distribution System Characteristics and Protection).
RE: Arc impedance
From the arcing current and knowing the system voltage, you can get an approximation for the ionized air impedance.
RE: Arc impedance
RE: Arc impedance
The IEEE 1584 calculations should be the same in the European Standard.
RE: Arc impedance
RE: Arc impedance