전력기기에서 $100 A/mm^2$급 Bi-2223테이프

$100 A/mm^2$ class Bi-2223 tapes have recently become commercially available. Some important characteristics of the tapes, e .g. critical current, ac loss, characteristics at joint, fault current characteristics, are required for an application such as a power cable or a power transformer. In this p...

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Veröffentlicht in:한국초전도·저온공학회논문지 2002, Vol.4 (1), p.55-60
Hauptverfasser: 류경우, 최경주, 성기철, 류강식
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creator 류경우
최경주
성기철
류강식
description $100 A/mm^2$ class Bi-2223 tapes have recently become commercially available. Some important characteristics of the tapes, e .g. critical current, ac loss, characteristics at joint, fault current characteristics, are required for an application such as a power cable or a power transformer. In this paper they have been investigated experimentally. The results indicate that the self-field loss of the high current density tapes is not negligible, compared to resistive loss in a copper wire for the same currents. In a cable, the self-field loss for relatively large currents is much larger than the magnetization loss due to an external field. But in a transformer, the magnetization loss is dominant, compared to the self-field loss. Finally the fault current characteristics show that the high current density tapes are never safe from burn-out even for fault currents with a few cycles.
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title 전력기기에서 $100 A/mm^2$급 Bi-2223테이프
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