Study of the quench conditions in superconducting current limiters

Author

Sokolovsky, Vladimir ; Meerovich, Victor ; Goren, Shaul ; Vajda, Istvan

Author_Institution

Dept. of Phys., Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

2110

Lastpage

2113

Abstract

A peculiarity of the operation of superconducting current limiters is that the resistance appearing in a superconductor influences the current in the circuit. Using an analytical approach, we analyze the conditions of the normal state formation and return into the superconducting state. The stability of equilibrium points is investigated as a function of the parameters of the circuit. It is shown that the superconductor stability is increased in comparison with the stability of a superconductor in the circuit of the current source. This allows one to use superconductors nonstabilized by normal metal to build current limiters and switches. It is demonstrated that using high-temperature superconductors the current limitation can be achieved even in the flux creep regime

Keywords

current limiters; flux creep; high-temperature superconductors; stability; superconducting devices; S-N transition; current limitation; equilibrium points stability; flux creep regime; high-temperature superconductors; normal state formation; quench conditions; resistance; superconducting current limiters; superconducting state; superconductor stability; Circuit stability; Current limiters; High temperature superconductors; Immune system; Superconducting cables; Superconducting coils; Superconducting magnets; Switches; Temperature dependence; Voltage;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.920273

Filename

920273