| 摘要 |
<p>A resistive current limiter takes the form of a hollow cylinder and is composed of high-temperature superconducting material. In this connection, the high-temperature superconducting material may be a polynary oxide. To produce said resistive current limiter, a homogeneous melt is prepared from an oxide mixture, suitable for forming high-temperature superconductors, in a specified stoichiometry and said melt is allowed to run, at temperatures above 900 DEG C., into a casting zone which rotates about its horizontal axis. The molding, solidified as a cylinder, is removed from the casting zone. The cylinder is sawn so as to produce a gap extending parallel to its axis. Furthermore, a multiplicity of slits are sawn into the cylinder parallel to the gap. Finally, the cylinder is heat-treated for up to 150 hours at 700 DEG to 900 DEG C. in an oxygen-containing atmosphere.</p> |
