Effects of turn-to-turn compactness in the straight sections of HTS racetrack coils on thermal and electrical characteristics

O. J. Kwon; K. L. Kim; Y. H. Choi; H. J. Shin; S. Hahn; Y. Iwasa; H. G. Lee

doi:10.1088/0953-2048/26/8/085025

Effects of turn-to-turn compactness in the straight sections of HTS racetrack coils on thermal and electrical characteristics

O. J. Kwon, K. L. Kim, Y. H. Choi, H. J. Shin, S. Hahn, Y. Iwasa, H. G. Lee

Research output: Contribution to journal › Article › peer-review

62 Citations (Scopus)

Abstract

The thermal and electrical characteristics of two GdBCO-coated conductor racetrack coils, one insulated with Kapton insulation and the other without turn-to-turn insulation, were investigated by typical voltage-current measurement, charge-discharge, sudden discharge, and over-current tests with respect to external pressures applied to the straight sections of the coils. The test results show that the thermal and electrical stabilities of the racetrack coil without insulation were enhanced considerably with increasing external pressure up to 0.5 MPa, whereas those of the insulated coil were not affected by the pressure. The non-insulated HTS racetrack-type coil with improved turn-to-turn thermal contact in the straight sections may have the potential to be manufactured into field coils for HTS wind turbine generators with highly enhanced thermal and electrical stabilities.

Original language	English
Article number	085025
Journal	Superconductor Science and Technology
Volume	26
Issue number	8
DOIs	https://doi.org/10.1088/0953-2048/26/8/085025
Publication status	Published - 2013 Aug

ASJC Scopus subject areas

Ceramics and Composites
Condensed Matter Physics
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

Access to Document

10.1088/0953-2048/26/8/085025

Cite this

@article{29d3455c0ee249fc982a2a3136697f1f,

title = "Effects of turn-to-turn compactness in the straight sections of HTS racetrack coils on thermal and electrical characteristics",

abstract = "The thermal and electrical characteristics of two GdBCO-coated conductor racetrack coils, one insulated with Kapton insulation and the other without turn-to-turn insulation, were investigated by typical voltage-current measurement, charge-discharge, sudden discharge, and over-current tests with respect to external pressures applied to the straight sections of the coils. The test results show that the thermal and electrical stabilities of the racetrack coil without insulation were enhanced considerably with increasing external pressure up to 0.5 MPa, whereas those of the insulated coil were not affected by the pressure. The non-insulated HTS racetrack-type coil with improved turn-to-turn thermal contact in the straight sections may have the potential to be manufactured into field coils for HTS wind turbine generators with highly enhanced thermal and electrical stabilities.",

author = "Kwon, {O. J.} and Kim, {K. L.} and Choi, {Y. H.} and Shin, {H. J.} and S. Hahn and Y. Iwasa and Lee, {H. G.}",

year = "2013",

month = aug,

doi = "10.1088/0953-2048/26/8/085025",

language = "English",

volume = "26",

journal = "Superconductor Science and Technology",

issn = "0953-2048",

publisher = "IOP Publishing Ltd.",

number = "8",

}

TY - JOUR

T1 - Effects of turn-to-turn compactness in the straight sections of HTS racetrack coils on thermal and electrical characteristics

AU - Kwon, O. J.

AU - Kim, K. L.

AU - Choi, Y. H.

AU - Shin, H. J.

AU - Hahn, S.

AU - Iwasa, Y.

AU - Lee, H. G.

PY - 2013/8

Y1 - 2013/8

N2 - The thermal and electrical characteristics of two GdBCO-coated conductor racetrack coils, one insulated with Kapton insulation and the other without turn-to-turn insulation, were investigated by typical voltage-current measurement, charge-discharge, sudden discharge, and over-current tests with respect to external pressures applied to the straight sections of the coils. The test results show that the thermal and electrical stabilities of the racetrack coil without insulation were enhanced considerably with increasing external pressure up to 0.5 MPa, whereas those of the insulated coil were not affected by the pressure. The non-insulated HTS racetrack-type coil with improved turn-to-turn thermal contact in the straight sections may have the potential to be manufactured into field coils for HTS wind turbine generators with highly enhanced thermal and electrical stabilities.

AB - The thermal and electrical characteristics of two GdBCO-coated conductor racetrack coils, one insulated with Kapton insulation and the other without turn-to-turn insulation, were investigated by typical voltage-current measurement, charge-discharge, sudden discharge, and over-current tests with respect to external pressures applied to the straight sections of the coils. The test results show that the thermal and electrical stabilities of the racetrack coil without insulation were enhanced considerably with increasing external pressure up to 0.5 MPa, whereas those of the insulated coil were not affected by the pressure. The non-insulated HTS racetrack-type coil with improved turn-to-turn thermal contact in the straight sections may have the potential to be manufactured into field coils for HTS wind turbine generators with highly enhanced thermal and electrical stabilities.

UR - http://www.scopus.com/inward/record.url?scp=84880277988&partnerID=8YFLogxK

U2 - 10.1088/0953-2048/26/8/085025

DO - 10.1088/0953-2048/26/8/085025

M3 - Article

AN - SCOPUS:84880277988

SN - 0953-2048

VL - 26

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

IS - 8

M1 - 085025

ER -

Effects of turn-to-turn compactness in the straight sections of HTS racetrack coils on thermal and electrical characteristics

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this