Influence of longitudinal temperature distribution on current limiting function of Superconducting Fault Current Limiting Cable (SFCLC)

H Kojima, T Osawa, N Hayakawa, M Hanai, H Okubo
2014 Journal of Physics, Conference Series  
We have proposed a Superconducting Fault Current Limiting Cable (SFCLC), which is an HTS cable with fault current limiting function. SFCLC is expected to limit the fault current and also immediately recover the cable function after the fault clearance. In the SFCLC operation, a longitudinal temperature distribution will exist due to heat penetration, AC loss, dielectric loss and the performance of cryocooling system, which will influence its current limitation characteristics. In this paper, we
more » ... . In this paper, we investigate the influence of the longitudinal temperature distribution on current limiting function and temperature rise after the current limitation of SFCLC. We suggested the effective measures of parameter control, i.e. decreasing the critical current (Ic@77K), n value at flux flow region (n1-0), increasing the coefficient of longitudinal temperature gradient (), inflow temperature (Tin) to achieve both the higher current limiting function and the lower temperature rise.
doi:10.1088/1742-6596/507/3/032026 fatcat:mfe3fak525bujf4k7a4qo4svfa