Abstract
This paper reports a study of two HTS racetrack coils wound with GdBCO coated conductors, one without turn-to-turn insulation and the other with Nomex insulation. The coils were characterized by charge-discharge, over-current, and sudden discharge tests. Thermal and electrical characteristics of the GdBCO racetrack coil without insulation outperformed the insulated one. The test results confirmed that although the coil without insulation has a slow charging/discharging time constant, the no-insulation winding technique may enable a compact and protection-free racetrack-typed coil with enhanced mechanical integrity as well as better thermal and electrical stabilities.
| Original language | English |
|---|---|
| Article number | 5200604 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 22 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2012 |
Keywords
- No-insulation
- protection-free
- racetrack coil
- superconducting rotating machine
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
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Cite this
Kim, Y. G., Hahn, S., Kim, K. L., Kwon, O. J., & Lee, H. (2012). Investigation of HTS racetrack coil without turn-to-turn insulation for superconducting rotating machines. IEEE Transactions on Applied Superconductivity, 22(3), [5200604]. https://doi.org/10.1109/TASC.2011.2181931