@article{oai:nagoya.repo.nii.ac.jp:00005295, author = {Okubo, H. and Wakita, M. and Chigusa, S. and Hayakawa, N. and Hikita, M.}, issue = {1}, journal = {IEEE Transactions on Dielectrics and Electrical Insulation [see also IEEE Transactions on Electrical Insulation]}, month = {Feb}, note = {For practical insulation design of superconducting power apparatus, it is necessary to take into accout an inherent phenomenon known as quench. The transition from the superconducting to the normal state. We investigated quench-induced dynamic breakdown and prebreakdown characteristics of liquid helium (LHe). Experimental results revealed that the quench of the superconductor drastically reduced the breakdown voltage of LHe in the thermal bubble disturbance. Moreover, dynamic breakdown characteristics in quasi-uniform field using superconducting coil were investigated. The results revealed that the breakdown was induced in the quench-initiated region where the largest thermal energy was generated.}, pages = {120--126}, title = {Dynamic breakdown characteristics of liquid helium induced by a quench of superconducting wire and coil}, volume = {4}, year = {1997} }