HIGH-VOLTAGE INSULATION PERFORMANCE OF CRYOGENIC LIQUIDS FOR SUPERCONDUCTING POWER APPARATUS

This paper describes high voltage insulation technology of cryogenic l iquids for superconducting power apparatus. The insulation of a superc onducting transformer is classified into several insulation components . Moreover, we investigate fundamental insulation characteristics pecu liar to the superconducting and cryogenic circumstances: area and volu me effects on breakdown strength, V-t characteristics, quench-induced dynamic breakdown characteristics and so on. Finally, we systematize t he electrical insulation of cryogenic liquids, and propose the flow ch art for the practical insulation design of superconducting power appar atus.