This paper presents quench test results, of both experiment and simulation, of a racetrack pancake coil wound with a GdBCO-coated conductor tape in a solid nitrogen (SN2) cooling system at 58 K. The longitudinal normal zone propagation velocities in the curved section were 2 times faster than those in the straight section. Therefore, the straight section should be protected more than the curved section when using racetrack-type, GdBCO pancake coils in large-scale rotating machines. The simulated results showed good agreement with the experimentally observed normal zone initiation times.
Bibliographical noteFunding Information:
Manuscript received September 12, 2011; accepted November 11, 2011. Date of publication December 16, 2011; date of current version May 24, 2012. This study was supported by the Mid-career Researcher Program through an NRF grant funded by the MEST (2009-0085369). This study was also supported by the International Collaborative R&D Program of the KETEP grant funded by the Korea government Ministry of Knowledge Economy (MKE).
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering