Fast Arc Running On Various Electrode Materials

Abstract

A study on fast arc running between parallel flat electrodes is presented. This mode of a steady-state arc motion is investigated on various materials with respect to the influence of the magnetic blast field, the arc current, and the gap length. Fast running arcs were recorded by streak photographs, high speed frame movies, and signals of an optoelectronic device; information about the arc structure, velocity, and current density is given.