Analysis on the transient voltage performance of a DC superconducting cable

Author

Chowdhuri, Pritindra ; Pallem, Chandralekha ; Demko, Jonathan A. ; Gouge, Michael J.

Author_Institution

Center for Energy Syst. Res., Tennessee Technol. Univ., Cookeville, TN

Volume

16

Issue

1

fYear

2006

fDate

3/1/2006 12:00:00 AM

Firstpage

21

Lastpage

30

Abstract

Transient voltage distribution in a DC superconducting cable, comprising of four concentric metallic cylinders was analyzed. Of the four concentric cylinders, two carry the load current, and the other two comprise the cryogenic enclosure. Analysis was performed with transient current injected either to the innermost or the outermost cylinder. The outermost cylinder was either bare or insulated. The outer three cylinders were either solidly grounded or isolated from ground at the point of current injection. It was concluded that transient voltages will appear across the RETURN cryogen flow and also across the vacuum space in the cryogenic enclosure. As these two systems are designed for their thermal performance, they may suffer permanent damage caused by unwanted electrical transients

Keywords

charge injection; superconducting cables; transients; DC superconducting cable; bare outermost cylinder; concentric metallic cylinders; cryogenic enclosure; insulated outermost cylinder; load current; return cryogen flow; solidly grounded; thermal performance; transient current injection; transient voltage performance; unwanted electrical transients; vacuum space; Conductors; Cryogenics; High temperature superconductors; Impedance; Lightning; Performance analysis; Power system economics; Superconducting cables; Transient analysis; Voltage; DC superconducting cable; transient voltages;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2005.863517

Filename

1603605