A study on normal zone propagation behavior of partially insulated GdBCO coil

Hyun Jin Shin; Kwang Lok Kim; Yoon Hyuck Choi; Donggyu Yang; Young Gyun Kim; Haigun Lee

doi:10.1109/TASC.2014.2363031

A study on normal zone propagation behavior of partially insulated GdBCO coil

Hyun Jin Shin, Kwang Lok Kim, Yoon Hyuck Choi, Donggyu Yang, Young Gyun Kim, Haigun Lee

Department of Materials Science and Engineering

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

9 Citations (Scopus)

Abstract

This paper reports the quench initiation and propagation characteristics of two GdBCO single-pancake coils, one wound with Kapton tape every two turns and the other completely wound with Kapton tape, to investigate the effect of a partial insulation (PI) winding technique. The thermal/electrical stabilities of the PI coil were improved by turn-to-turn contacts between the partially uninsulated turns, leading to an increased minimum quench energy. Furthermore, transverse normal zone propagation velocities of the PI coil increased because local heat was well transferred through uninsulated turns during quench events.

Original language	English
Article number	6922490
Journal	IEEE Transactions on Applied Superconductivity
Volume	25
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2014.2363031
Publication status	Published - 2015 Jun 1

Keywords

GdBCO
minimum quench energy
normal zone propagation velocity
partial insulation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/TASC.2014.2363031

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abstract = "This paper reports the quench initiation and propagation characteristics of two GdBCO single-pancake coils, one wound with Kapton tape every two turns and the other completely wound with Kapton tape, to investigate the effect of a partial insulation (PI) winding technique. The thermal/electrical stabilities of the PI coil were improved by turn-to-turn contacts between the partially uninsulated turns, leading to an increased minimum quench energy. Furthermore, transverse normal zone propagation velocities of the PI coil increased because local heat was well transferred through uninsulated turns during quench events.",

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AU - Choi, Yoon Hyuck

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AU - Kim, Young Gyun

AU - Lee, Haigun

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AB - This paper reports the quench initiation and propagation characteristics of two GdBCO single-pancake coils, one wound with Kapton tape every two turns and the other completely wound with Kapton tape, to investigate the effect of a partial insulation (PI) winding technique. The thermal/electrical stabilities of the PI coil were improved by turn-to-turn contacts between the partially uninsulated turns, leading to an increased minimum quench energy. Furthermore, transverse normal zone propagation velocities of the PI coil increased because local heat was well transferred through uninsulated turns during quench events.

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A study on normal zone propagation behavior of partially insulated GdBCO coil

Abstract

Keywords

ASJC Scopus subject areas

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