[13p-B406-1~13] 11.3 Critical Current, Superconducting Power Applications

[13p-B406-12] Effect of Current Transfer to I_c Measurement of Superconducting Cable

〇Teruo Matsushita¹, Masaru Kiuchi¹, Gen Nishijima², Takato Masuda³, Shinichi Mukouyama⁴, Yuji Aoki⁵, Masanao Mimura⁶ (1.Kyushu Inst. Tech., 2.Nat. Inst. Met. Sci., 3.Sumitomo Electric, 4.Furukawa Electric, 5.Showa Cable S., 6.J. Electric Wire A.)

Keywords:superconducting cable, critical current, current transfer

Current-voltage characteristics were measured by changing the distance between the potential lead and current terminal to clarify the effect of current transfer on the measurement of critical current of superconducting cable. The resistive component that decreases exponentially with the distance is superposed on the voltage caused by the current transfer. It can be clarified that the critical current can be correctely measured by subtracting the resistive component from the measured voltage.