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Dynamic breakdown characteristics of liquid helium induced by a quench of superconducting wire and coil
Okubo, H.
13433
Wakita, M.
13434
Chigusa, S.
13435
Hayakawa, N.
13436
Hikita, M.
13437
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.
journal article
IEEE
1997-02
application/pdf
IEEE Transactions on Dielectrics and Electrical Insulation [see also IEEE Transactions on Electrical Insulation]
1
4
120
126
http://hdl.handle.net/2237/6882
https://nagoya.repo.nii.ac.jp/record/5295/files/di_el_ins_4_1_120.pdf
eng
https://doi.org/10.1109/94.590880
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