Analysis of the Dynamic Characteristics of AC Plasma Jet

This report described the dynamic characteristics of the AC plasma jet, which was generated by the cross electrode type plasma jet generator, that had the resistance ballast (R-ballast) or reactance ballast (RL-ballast). The measurements of the restriking voltage and the dead time of arc current after extinction at each half cycle indicated that the polarity of arc, the ballast and the arc operating parameters (arc current, gas flow rate, electrode gap) had a marked influenced on the restriking characteristics. Using the R-ballast, the restriking characteristics were very influenced by the polarity of arc and the arc operating parameters, but using the RL-ballast, they were not influenced by that, and so the dead time of arc current was always under 25 μsec. The thermal efficiency was 56&acd