Arc channel impedance estimation according to voltage and current oscillograms with programmable discharge of capacitive energy store

Summary form only given, as follows. A programmable discharge of capacitive energy stores allows to obtain optimum regimes of energy emission in the load. Characteristic peculiarities of programmable discharge regime are the voltage step change on the load at the moment of regular capacitance module switching on and the existence of several maximums on the current curve in the load in the time gap between modules switching on. Magnitude of the step on the voltage curve gives the possibility of defining existing inductance of the load. Voltage at the moment of current peak allows estimation of ohmic resistance of the load. Working out results of oscillogram records of the E7-25 capacitive store programmable discharge on electric arc in air at atmospheric pressure are presented. High-speed photography of an electric arc in air has demonstrated correlation between measured arc inductance and its form evolution.