A transformer for measuring 60 Hz loss and critical current characteristics of short superconductor tapes

Abstract To test samples of superconductor tape destined for use in power transmission cables, it is necessary to simulate the actual operating conditions for these cables. A transformer in which the field parallel to one side of the superconductor sample is provided by cylindrical iron poles, produces these conditions quickly and efficiently. The design of this transformer is described together with the actual measurement techniques used to assess the performance of samples.