Speaker
Description
Abstract-- In order to improve the engineering current density of high-temperature superconducting strand, we developed a kind of quasi-isotropic superconducting strand stacked by 2mm wide REBCO tapes. Minumum quench energy (MQE) and quench propagation velocity (QPV) of quasi-isotropic superconducting strands with copper, aluminum and stainless steel sheaths in liquid nitrogen (LN) were investigated numerically and experimentally in this paper. The numerical results are strong textin accord with the experiment, indicating that the developed numerical method can effectively simulate the thermal stability of this kind of strand immersed in liquid nitrogen and it can be applicated in high-current electric power transmission with high stability.
Index Terms--Thermal stability, quasi-isotropic superconducting strand, minumum quench energy, quench propagation velocity
