Two-Dimensional Spectroscopy for Vacuum Arc in Steady State and Decaying State under Free-Recovery Condition

In this paper, a fundamental experimental system was constructed for observation of vacuum arcs in steady states and transient states. A vacuum arc discharge was formed at currents of DC30 A and DC50 A. The IGBT was used to commutate the arc current to IGBT to make free-recovery state, which is fundamental transient state for decaying arcs. Using this system, high speed imaging for a steady state ...