Surface flashover characteristics in Liquid Nitrogen for application of superconducting pancake coils.

A Dept of Electrical Eng Gyeongsang National University , B Pusan Informational College

@Kim Snag Hyun^A, @Jeong Jong Man^A, @Baek Seung Myeong^A, @Kim Young Seok^A, @Chung Soon Yong^B

　 For the development of superconducting power apparatus, it is necessary to establish the dielectric technology in coolant like LN2. Surface flashover characteristics are studied with several simplified spacer at the structural aspects when superconducting pan-cake coils applied to superconducting power apparatus like transformer and fault current limiter.