The Frequency Spectrum Characteristics of Radiated Electromagnetic Wave by the Process of Discharge Progress in $SF_6$

$SF_6$ 가스중 방전진전과정에 따른 방사전자파의 주파수 스펙트럼 분포 특성

This paper simulated discharge progress and partial discharge using needle-plan electrodes system in $SF_6$, studied the distribution of frequency spectrum of the radiated electromagnetic waves using biconical antenna and spectrum analyzer. From results of this study, a method was introduced for measurement and analysis of the radiated electromagnetic waves in accordance with discharge progress in $SF_6$. Besides, according to the consideration of the mutual relation between frequency spectrum of the radiated electromagnetic waves and discharge progress, it was confirmed that detecting partial discharge and estimating discharge progress in $SF_6$ can be possible.