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 Jun 25 |
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Keywords
- No-insulation
- protection-free
- racetrack coil
- superconducting rotating machine
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
Cite this
Investigation of HTS racetrack coil without turn-to-turn insulation for superconducting rotating machines. / Kim, Young Gyun; Hahn, Seungyong; Kim, Kwang Lok; Kwon, Oh Jun; Lee, Haigun.
In: IEEE Transactions on Applied Superconductivity, Vol. 22, No. 3, 5200604, 25.06.2012.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Investigation of HTS racetrack coil without turn-to-turn insulation for superconducting rotating machines
AU - Kim, Young Gyun
AU - Hahn, Seungyong
AU - Kim, Kwang Lok
AU - Kwon, Oh Jun
AU - Lee, Haigun
PY - 2012/6/25
Y1 - 2012/6/25
N2 - 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.
AB - 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.
KW - No-insulation
KW - protection-free
KW - racetrack coil
KW - superconducting rotating machine
UR - http://www.scopus.com/inward/record.url?scp=84862530718&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84862530718&partnerID=8YFLogxK
U2 - 10.1109/TASC.2011.2181931
DO - 10.1109/TASC.2011.2181931
M3 - Article
AN - SCOPUS:84862530718
VL - 22
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 3
M1 - 5200604
ER -