Optimal Design and Experimental Study on Gas Cooled Current Lead With Varying Cross-Section

Author

Jiahui, Zhu ; Juntao, Tian ; Ming, Qiu ; Bin, Yang ; Panpan, Chen

Author_Institution

China Electr. Power Res. Inst., Beijing, China

Volume

20

Issue

3

fYear

2010

fDate

6/1/2010 12:00:00 AM

Firstpage

1705

Lastpage

1709

Abstract

The heat leakage of the current lead which connects the power supply and superconducting equipment are very important for a stable and economical operation of critical superconducting devices. An improved segment algorithm is used to obtain the optimal length and cross-section of a gas cooled current lead with varying cross-sections. Based on the improved method, we have designed a current lead with varying cross-section for the critical current test of HTS YBCO tapes with less conductive heat loss. Finally the temperature distribution of the current lead are measured experimentally. The experimental results are in agreement with the design, which proves the optimization effect of the current lead. The optimal design method and experimental research contribute to the utility of HTS current leads.

Keywords

barium compounds; critical currents; heat losses; high-temperature superconductors; superconducting devices; superconducting tapes; yttrium compounds; HTS YBCO tapes; YBCO; conductive heat loss; critical current test; critical superconducting devices; gas cooled current lead; heat leakage; optimal design method; optimal length; optimization effect; power supply; segment algorithm; superconducting equipment; temperature distribution; varying cross-section; Current lead; gas cooled; optimal design; varying cross-sections;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2010.2040949

Filename

5422917