Superconducting Transformer for Superconducting Cable Testing up to 45 kA

TL;DR

This paper presents the development and experimental characterization of a superconducting transformer capable of delivering up to 45 kA for testing superconducting cables, including its behavior during quenches at 4.2 K.

Contribution

The paper introduces a superconducting transformer designed for high-current testing up to 45 kA and provides experimental results and quench behavior analysis.

Findings

Transformer operates reliably up to 45 kA

Quench behavior characterized at 4.2 K

Transformer properties suitable for superconducting cable testing

Abstract

A facility capable of testing superconducting cables with current of tens of kA is essential for the development of large superconducting magnets. A superconducting transformer (SCT) is a suitable choice as a high DC current source for testing superconducting cables. In this work, we will present our experimental results of a SCT up to output current of 45 kA. The properties of this SCT is characterized at 4.2 K. Its behaviors during quenches at different current levels are studied.