Fault CWTQnt Limiter - Predominantly Resistive Behavior ofa BSCCO Shielded-Core Reactor

Testa were conducted to deternlne the electrical and magnetic characteristics of a superconductor shielded core reactor (SSCR). The results show that a closed-core SSCR Is predominantly a resistive device and an open-core SSCR is a hybrid resistive/inductive device. The open-core SSCR appears to dissipate less than the closed-core SSCR. However, the Impedance of the open-core SSCR is less than that of the closed-core SSCR. Magnetic and thermal diffusion are believed to be the mechanism that facilitates the penetration of the superconductor tube under fault conditions. index Terms—fault current Umtter, magnetic diffusion, SSCR, transformer model.