Experimental Results at Pulse Test Facility (PTF) of Butt Joint Used in ITER CS Model Coil Outer Module

摘要

A butt type joint is used for electrical connections between layers in the outer module of the ITER-CS model coil. The AC loss, joint resistance, stability and quench current were investigated using a prototype butt joint sample in the Pulse Test Facility (PTF) at MIT. The experimental results of the AC loss and joint resistance are reported in this paper. The AC loss is measured to be sufficiently low, about 7 W, for magnetic field pulses with a ramp rate of 0.4 T/s. The joint resistance is evaluated to be about 8 nΩ at 4.5 T and 40 kA.