Study on over-current characteristics of HTS tape by stabilizing material

High-temperature superconducting tapes have been applied to diverse power devices through previous researches. Nevertheless, there has been no clear theoretical investigation of a mix of superconducting and normal conditions; in particular, there have been poor researches on changes in properties by kinds of superconducting tapes in case of mechanical transformation for application to devices. In this study, therefore, we discovered voltage-current and resistance properties by kinds of superconducting tapes and stabilizing materials through a test and compared and examined effects of mechanical transformation of each tape. To do this, Bi-2223 tapes and two kinds of YBCO tapes with different stabilizing materials were selected and divided in the unit of 100 cm to compare the resistance curve between the straight state and the wound state with mechanical transformations. In addition, current application properties of tapes were examined according to series and parallel connection with tapes wound round the manufactured former