불평등전장에서 SF6와 SF6/N2 혼합기체의 뇌임펄스 전압에 대한 코로나 방전특성

초록

Abstract - This paper presents an experimental study on the prebreakdown characteristics in SF6/N2 mixtures under non-uniform electric fields when subjected to the positive and negative lightning impulse voltages. SF6/N2 mixtures have a merit of an environmental aspect and cost reduction, and safty aspects. In order to analyze the prebreakdown processes in SF6/N2 mixtures stressed by impulse voltages, prebreakdown current and light were observed by a shunt with high sensitivity and a photo-multiplier tube, respectively. Additionally, characteristics of luminous events in flashovers were discussed.