Transport Loss Characteristics of the Bi-2223 Tapes in an External AC Magnetic Field

Author

Ryu, K. ; Song, H.J. ; Kim, H.J. ; Seong, K.C.

Author_Institution

Dept. of Electr. Eng., Chonnam Nat. Univ., Kwangju

Volume

16

Issue

2

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

1011

Lastpage

1014

Abstract

A Bi-2223 tape has been developed for power applications such as a fault current limiter, a power cable and a superconducting magnetic energy storage system (SMES). In such applications, the Bi-2223 tape carries time varying transport current and in addition experiences time varying external magnetic field. It is well known that the external magnetic field not only causes magnetization loss in the Bi-2223 tape, but also drastically increases transport loss due to a so-called "dynamic resistance". We developed an evaluation setup, which can measure transport loss in an external AC magnetic field. Using this equipment, we measured the dynamic resistances for various amplitudes and frequencies of external AC magnetic field perpendicular to the face in the tape. Simultaneously we investigated the effect of external AC field on transport loss with different experimental conditions. This paper describes test results and discussions on correlation between the dynamic resistance and the transport loss for various technical Bi-2223 tapes

Keywords

barium compounds; calcium compounds; fault current limiters; high-temperature superconductors; lead compounds; magnetic field effects; magnetisation; power cables; strontium compounds; superconducting magnet energy storage; superconducting tapes; Bi-2223 tapes; Bi₂PbSr₂Ca₂Cu₃O ₁₀; carries time; dynamic resistances; external AC magnetic field; fault current limiter; magnetization loss; power cables; superconducting magnetic energy storage system; transport current; transport loss characteristics; Electrical resistance measurement; Fault current limiters; Loss measurement; Magnetic field measurement; Magnetic fields; Magnetic losses; Magnetization; Power cables; Samarium; Superconducting magnetic energy storage; Dynamic resistance; dynamic resistance loss; external AC magnetic field; transport loss;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2006.871306

Filename

1643019