SUPERCONDUCTIVE COIL OF INDUCTIVE APPARATUS

PROBLEM TO BE SOLVED: To provide a superconductive coil of an inductive apparatus capable of efficiently cooling Joule heat generation of a superconductive wire associated with current carrying by improving an arrangement structure of multiple parallel conductors wound around a winding frame. SOLUTION: In this superconductive coil composed by forming a spiral groove 4a on an outer peripheral surface of a cylindrical insulating winding frame 4, and winding a tape-like high-temperature oxide superconductive wire 5 along the inside of the groove as multiple parallel conductors, the multiple parallel conductors are divided into a plurality of conductor groups to be subjected to multilayer parallel arrangement in the spiral groove 4a; cooling ducts 8 for running a cooling medium are delimited between the respective groups in the overlapping direction thereof; and specifically, the cooling ducts 8 are delimited by dispersing and interposing duct pieces 7 between the conductor groups arranged in inner and outer peripheries in the radial direction of the coil, and fixed by a binding tape 6 from the outer periphery side. COPYRIGHT: (C)2011,JPO&INPIT