publication . Article . 2014

Modeling Quench Protection Heater Delays in an HTS Coil

Tiina Salmi; Antti Stenvall;
Open Access
  • Published: 01 Jan 2014 Journal: IEEE Transactions on Applied Superconductivity, volume 25, pages 1-5 (issn: 1051-8223, eissn: 1558-2515, Copyright policy)
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Abstract
The purpose of this research was to investigate the efficiency of the state-of-the-art quench protection heater technology applied to a high-temperature superconductor (HTS)-based accelerator type magnet. The heater delays, i.e., the time delay between the heater activation and consequent normal zone initiation in the winding, were simulated using the 2-D thermal modelling tool CoHDA, which has been successfully used for low-temperature superconductor (LTS) coils. In addition to the quench onset criterion used for LTS, requiring the cable maximum temperature to reach the current sharing temperature (T cs ), a criterion accounting for the current redistribution w...
Subjects
free text keywords: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Accelerators and Storage Rings, Future Magnets (MAG) [10], 5 T HTS Dipole Magnet Design and Construction [10.3], Superconductivity, Quenching, Thermal, Magnet, Maximum temperature, Energy margin, Materials science, Kapton, Electromagnetic coil, Nuclear engineering
Funded by
EC| EUCARD-2
Project
EUCARD-2
Enhanced European Coordination for Accelerator Research & Development
  • Funder: European Commission (EC)
  • Project Code: 312453
  • Funding stream: FP7 | SP4 | INFRA
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