The Characteristics of Tracking Phenomena and Surface Discharge Using Various Types of Electrode Arrangement in $LN_{2}$ at the Atmospheric Pressure

대기압하의 액체질소중 전극배치에 따른 고체유전체 표면의 연면방전 및 Tracking현상

This paper were investigated discharge characteristics in the Liquid Nitrogen($LN_{2}$) noticed as a cooling medium of high temperature superconductor, and the characteristics of surface discharge and tracking phenomena on the solid insulators of cryocable. In order to investigate the bubbles which have much influence on electric surface discharge in Liquid Nitrogen, knife type electrode and plane electrode was formed oppositely with mode A and B, C configuration. It is considered that these result are fundamental data for electric insulation design of superconductivity and cryogenic application machinery which will be studied and developed in the future.