Quench protection system for the KSTAR superconducting toroidal field coil

A compact and unique design of the integrated quench protection (QP) system for the high-current superconducting magnet coils has been fabricated and tested for the toroidal field (TF) coil system of the Korea Superconducting Tokamak Advanced Research (KSTAR) device. The QP system is capable of protecting the TF superconducting magnet coils, which consist of 16 identical coils serially connected with a stored energy of 495 MJ at the design operation level, 35.2 kA per turn.