急峻方形波高電圧を用いた SF6-N2混合 ガス中V-t特性の測定

急峻方形波高電圧を用いた SF6-N2混合 ガス中V-t特性の測定
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DOI:
10.1541/ieejfms.125.153
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发表时间:
2005
期刊:
The transactions of the Institute of Electrical Engineers of Japan.A
影响因子:
--
通讯作者:
裕之 豊田;成居 松岡;邦彦 日高
裕之 豊田;成居 松岡;邦彦 日高
中科院分区:
其他
文献类型:
--
作者:
裕之 豊田;成居 松岡;邦彦 日高

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方波脉冲电压可用于研究放电物理和/或非常快速的瞬态过电压问题。本文描述了SF_6-N_2混合气体在小于1微秒的极短时间范围内的火花放电电压和时间滞后(V-t)特性,用上升时间为16纳秒、峰值为200千伏的陡前沿方波电压测量。包含60%或更少比率的氮气的SF6-N2气体混合物即使在约10纳秒的短时间范围内也具有与纯SF6气体相同的介电强度。火花放电电压和时间滞后特性的评估,即使在微秒以下的短时间范围内使用的等面积准则。
A square pulse voltage is useful for studying electrical discharge physics and/or very fast transient overvoltage issues. This paper describes sparkover voltages and time lag (V-t) characteristics of SF6-N2 gas mixtures in a very short time range below a microsecond, which are measured by using a steep-front square voltage with a rise time of 16 nanoseconds and a peak value of 200 kilovolts. SF6-N2 gas mixture, which contains nitrogen gas at a ratio of 60 % or less, has equivalent dielectric strength to pure SF6 gas even in the short time range around 10 nanoseconds. Sparkover voltage and time lag characteristics are evaluated by using the equal area criterion even in the short time range below a microsecond.