Quench management of HTS magnets is a topic of considerable debate, varying opinions and involves a range of detection and protection methodologies for the broad range of HTS magnet applications currently under development. Here we present a sampling of HTS magnet projects across a broad range of applications. Quench detection and protection methodologies vary between projects.

Applications include a brain-MRI magnet, smaller solenoids to enhance plasma thrusters for use in Space, a floating dipole for fusion, the 32 T HTS-LTS solenoid as a magnet for research ,a superconducting rotor for electric aircraft (demonstration) motor and initial results of a solenoid constructed from bulk ceramic disks. Operating temperatures vary from 4.2 to 77 K, either liquid cryogen or cryocooler cooled, current sources are either room temperature supplies or flux pumps. Quench detection is voltage-based or absent in passively protected magnets, quench protection schemes include active heaters, dump resistors and variations on the No-Insulation scheme: reliance on a specific degree of electrical resistivity between turns.

Application-specific requirements are discussed, and operational experience is described when available.