| Title |
AC Breakdown Characteristics of Ar/N_2 and Kr/N_2Gas Mixtures |
| Authors |
이상우(Lee, Sang-Woo) ; 김인식(Kim, In-Sik) ; 이동인(Lee, Dong-In) ; 이광식(Lee, Kwang-Sik) ; 김이국(Kim, Lee-Kook) |
| Keywords |
pure Ar ; Kr ; and ; N_2gas ; Ar/N_2 ; and ; Kr/N_2gas mixtures ; Breakdown voltage ; Incandescent lamp |
| Abstract |
In this paper, the ac breakdown characteristics of pure Ar, Kr and N_2 gas with gas pressure range of 58.8-137.3[kPa] under uniform and non-uniform fields were investigated, and the measured values were compared with those In Ar/N_2 and Kr/N_2 gas mixtures with pressure varying. Summarizing the experimental results, the breakdown voltages of Pure N_2gas, under uniform and non-uniform fields, were increased about 4.8 and 1.1 times than those of pure Ar gas, and about 4.4 and 1.2 times than those of pure Kr gas, and the ac breakdown voltage increased with the pressure increasing. The breakdown voltages of Ar/N_2 gas mixtures were decreased with decreasing the mixture ratio of Pure N_2 gas. In case of Ar(85%)/N_2 (15%) and Ar(70%)/N_2 (30%) gas mixtures comparing to the pure Ar gas, the breakdown voltages under uniform field were increased about 1.8 and 2.2 times, and under non-uniform field were increased about 1.1 and 1.3 times at the pressure of 101.3[kPa]. Also, in case of Kr(85%)/N_2 (15%) and Kr(70%)/N_2 (30%) gas mixtures comparing to the pure Kr gas, the breakdown voltages under uniform field were increased about 1.7 and 2.0 times, and under non-uniform field were increased about 1.0 and 1.2 times. Corona inception voltage of Kr(70%)/N_2(30%) gas mixtures under non-uniform fields were increased about 1.28 times than those of Ar(70%)/N_2 (30%) gas mixtures. In case of practical incandescent lamps, luminous and lifetime of Kr(70%)/N_2 (30%) gas mixtures were increased about 1.15 and 1.21 times than those of Ar(70%)/N_2 (30%) gas mixtures. |