• Title/Summary/Keyword: Ar/$N_2$and Kr/$N_2$gas mixtures

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Breakdown Characteristics of Ar/N2 and Kr/N2Gas Mixtures with Pressure Variation (압력변화에 따른 Ar/N2및 Kr/N2혼합가스의 절연파괴 특성)

  • 이상우;이동인;이광식;김인식;김이국;배영호
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.16 no.1
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    • pp.106-113
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    • 2002
  • In this paper, breakdown characteristics of pure Kr, Ar and $N_2$gas with gas pressure range were investigated, and the measured values were compared with those in Ar/$N_2$and Kr/$N_2$gas mixtures with pressure varying. Also, various characteristics with gas mixtures in practical incandescent lamps were investigated. Summarizing the experimental results, the breakdown voltages of $N_2$gas were increased than those of Kr and Ar gas with large molecular weight, and the breakdown voltage increased with gas pressure increasing. The breakdown voltages of Ar/$N_2$and Ar/$N_2$gas mixtures were decreased with decreasing the mixtures ratio of $N_2$gas, and corona inception voltage of Kr/$N_2$gas mixtures under non-uniform fields were increased than those of Ar/$N_2$gas mixtures. In case of tactical incandescent lamps, luminous and lifetime of Kr(70%)/$N_2$(30%) gas mixtures were increased about 94[lm] and 380[hr] than those of Ar(70%)/$N_2$(30%) gas mixtures. and injection pressure of gas mixtures with cooling temperature of 20[$^{\circ}C$] in incandescent lamps were increased about 13[%] than those with cooling temperature of 40[$^{\circ}C$].

AC Breakdown Characteristics of $Ar/N_2 and Kr/N_2$Gas Mixtures ($Ar/N_2 및 Kr/N_2$혼합가스의 교류절연파괴 특성)

  • Lee, Sang-Woo;Kim, In-Sik;Lee, Dong-In;Lee, Kwang-Sik;Kim, Lee-Kook
    • The Transactions of the Korean Institute of Electrical Engineers C
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    • v.50 no.12
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    • pp.599-606
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    • 2001
  • 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 $N_2$gas, 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.

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Breakdown Characteristics of Ar/$N_2$ and Kr/$N_2$ Gas Mixtures with Pressure Variation (압력변화에 따른 Ar/$N_2$및 Kr/$N_2$ 혼합가스의 절연파괴 특성)

  • 이상우;이동인;이광식;김인식;김이국;배영호
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2001.11a
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    • pp.187-191
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    • 2001
  • In this paper, the ac breakdown characteristics of Ar/$N_2$and Kr/$N_2$gas mixtures with gas pressure range of 58.8~137.3[kPa] under uniform and non-uniform fields were investigated. Summarizing the experimental results, 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.

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AC Breakdown Characteristics in Ar/$N_2$ and Kr/$N_2$ Gas Mixtures (Ar/$N_2$ 및 Kr/$N_2$ 혼합 가스의 교류절연파괴 특성)

  • Lee, Sang-Woo;Kim, Lee-Kook;Kim, In-Sik;Cu, Kyung-Chul;Lee, Dong-In;Lee, Kwang-Sik
    • Proceedings of the KIEE Conference
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    • 2001.07c
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    • pp.1744-1746
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    • 2001
  • In this paper, we investigated the breakdown characteristics of Ar, Kr and $N_2$ gas in pure states with pressure range of 58.8-137.3[kPa] under uniform and non-uniform fields, and the measured values are compared with those in Ar/$N_2$ gas mixtures. From these results, the breakdown voltages of $N_2$ gas in uniform field were increased about 4.8 and 4.4 times than those of Ar and Kr gas, respectively. Breakdown voltages of Ar/$N_2$ gas mixtures were decreased with decreasing the mixture ratio of $N_2$ gas. Breakdown voltages of Ar(70%)/$N_2$(30%) gas mixtures in the pressure of 101.3[kPa] (gap length : 3[mm]) were increased 1.9 times than those of pure Ar gas.

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Analysis of Gases in Nuclear Fuel Rod by Quadrupole Mass Spectrometry (Quadrupole Mass Spectrometry를 이용한 핵연료봉내 기체분석)

  • Kim, Seung-Soo;Kang, Moon-Ja;Park, Soon-Dal;Park, Yong-Joon;Joe, Kih-Soo
    • Analytical Science and Technology
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    • v.12 no.2
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    • pp.94-98
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    • 1999
  • An analysis method of components and isotopic compositions of low pressure gases from nuclear fuel rod using quadrupole mass spectrometer was studied. The calibration curves of each gas in pure and mixtures of He, $N_2$, $O_2$, Ar, Kr and Xe were obtained as a function of pressure and concentration, respectively. Effect of molecular leak, located between sample chamber and analyser chamber, on the sensitivites was also studied. The results suggested that samples could be analysed accurately at the same analytical condition as that of synthetic gas mixture. The difference of sensitivities among isotopes of Kr and Xe was not observed in the range of measured pressure.

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