Investigation of HTS racetrack coil without turn-to-turn insulation for superconducting rotating machines

Young Gyun Kim; Seungyong Hahn; Kwang Lok Kim; Oh Jun Kwon; Haigun Lee

doi:10.1109/TASC.2011.2181931

Investigation of HTS racetrack coil without turn-to-turn insulation for superconducting rotating machines

Young Gyun Kim, Seungyong Hahn, Kwang Lok Kim, Oh Jun Kwon, Haigun Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article

85 Citations (Scopus)

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	https://doi.org/10.1109/TASC.2011.2181931
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

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

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Access to Document

10.1109/TASC.2011.2181931