Manufacturing of 50 kA superconducting transformer for ITER correction coil conductor test

摘要

To meet the specifications of International Thermonuclear Experimental Reactor correction coil (CC) conductor, a 50 kA superconducting transformer has been designed and manufactured to provide the short sample of the CC conductor the current. The transformer consists of two concentric layer-wound superconducting solenoids with the primary inside the secondary coil. In order to test the transformer, the two legs of the secondary coil were directly connected by superconducting cables. A 500 W/4.5 K refrigerator was used to provide the supercritical helium. The maximum current of 56.3 kA in the secondary coil loop was obtained. © 2010 American Institute of Physics Article Outline INTRODUCTION BASIC DESIGN MANUFACTURING OF SUPERCONDUCTING TRANSFORMER Transformer Dewar 200 A high temperature superconducting current lead Joint fabrication Manufacture of primary and secondary coils TEST CONCLUSIONS