| Title |
AC Breakdown Characteristics of Pure Ar , N2 Gas and Ar / N2 Gas Mixtures under Uniform and Non - Uniform Fields |
| Authors |
Sang-Woo Lee ; In-Sik Kim ; Dong-In Lee ; kwang-Sik Lee ; Lee-Kook Kim0 |
| Abstract |
In this paper, the AC breakdown characteristics of pure Ar and N₂ gas with gas pressure range of 58.8～137.3[㎪] under uniform and non-uniform fields were investigated, and the measured values were compared with those in Ar/N₂ gas mixtures with pressure varying. Summarizing the experimental results, the breakdown voltages of pure N₂ gas, under uniform and non-uniform fields, were increased about 4.8 and 1.1 times than those of pure Ar gas, and the AC breakdown voltage increased with the pressure increasing. The breakdown voltages of Ar/N₂ gas mixtures were decreased with decreasing the mixture ratio of N₂ gas. In case of Ar(85%)/N₂(15%) and Ar(70%)/N2(30%) gas mixtures comparing to the pure Ar gas, the breakdown voltages under uniform field were increased about 1.5 and 2.1 times, and under non-uniform field were increased about 1.1 and 1.3 times at the pressure of 101.3[㎪]. Also, corona inception voltage of Ar(70%)/N2(30%) gas mixtures under non-uniform fields were increased about 1.5 times than those of pure Ar gas. |