Title :
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
fDate :
3/1/2001 12:00:00 AM
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;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
