PROJECT TITLE :

Design and Development of 16-kA HTS Current Lead for HMFL 45-T Magnet

ABSTRACT:

The High Magnetic Field Laboratory developed a forty five-T hybrid magnet. To take a look at this magnet, a replacement try of high-temperature superconducting current leads rated at 16 kA were developed. This paper addresses the planning and test of those current leads. To minimize heat hundreds at the cold finish, Bi-2223 high-temperature superconductors were used. The foil-sort main heat exchanger is cooled by seventy seven-K liquid nitrogen (LN2) and gas nitrogen (GN2). The busbar for International Thermonuclear Experimental Reactor, an Nb–Ti low-temperature superconducting (LTS) cable, is employed to attach the magnet coil for easy access to the LTS cable. The insulation on the current lead was designed on the check target of 10 kV.