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 |
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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