DocumentCode
1760653
Title
Quench-Induced Dynamic Breakdown Characteristics of 
and 
Com
Author
Hayakawa, Naoki ; Matsuoka, T. ; Nishimachi, S. ; Kojima, H.
Author_Institution
EcoTopia Sci. Inst., Nagoya Univ., Nagoya, Japan
Volume
25
Issue
3
fYear
2015
fDate
42156
Firstpage
1
Lastpage
4
Abstract
In HTS power apparatus, quench due to the fault current generates dynamic electrical/thermal combined stress. This stress may induce the electric breakdown (BD) under the operating voltage. We investigated the quench-induced dynamic BD characteristics of LN2. In addition we investigated the quench-induced dynamic partial discharge characteristics of LN2/polypropylene laminated paper composite electrical insulation system for HTS cables. The criteria of the combined electrical/ thermal stress for the dynamic BD were obtained for both test samples, and the reduction rate of the dynamic BD criteria against the static BD criteria without thermal stress was discussed.
Keywords
composite materials; fault currents; nitrogen; paper; partial discharges; polymers; power cables; quenching (thermal); superconducting cables; thermal stresses; HTS cables; N2; dynamic electrical-thermal combined stress; fault current; laminated paper composite electrical insulation system; operating voltage; polypropylene; quench-induced dynamic breakdown characteristics; quench-induced dynamic partial discharge characteristics; static breakdown criteria; superconducting power apparatus; Electrodes; Heating; High-temperature superconductors; Insulation; Partial discharges; Stress; Thermal stresses; Breakdown; breakdown; bubble; electrical insulation; liquid nitrogen; partial discharge; partial discharge (PD);
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2014.2361405
Filename
6915858
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