| 摘要 |
<p>A fault current limiter, with a superconducting device (1; 21; 31; 41; 51; 61; 71; 72) comprising a sequence of superconducting elements (2a-2f), each with
- an electrically conducting substrate (3a-3d),
- a superconducting film (5a-5d), and
- an electrically insulating intermediate layer (4a-4c) provided between the substrate and the superconducting film,
wherein the superconducting films (5a-5d) of adjacent superconducting elements (2a-2f) of the sequence are electrically connected, in particular in series,
wherein the electrically conducting substrate (3a-3d) of each superconducting element (2a-2f) of the sequence is electrically insulated from each electrically conducting substrate (3a-3d) of those adjacent superconducting elements (2a-2f) within the sequence whose superconducting films (5a-5d) are electrically connected in series with the superconducting film (5a-5d) of said superconducting element (2a-2f), is characterized in that at least one of the superconducting elements (2a-2f) comprises an electric contact (24a-24c) between its superconducting film (5a-5d) and its electrically conducting substrate (3a-3d) through its insulating layer (4a-4c), wherein the electrical contact (24a-24c) is located basically in the middle between the regions where the superconducting element (2a-2f) is electrically connected to a previous and a next superconducting element (2a-2f). The invention introduces a fault current limiter which is cost efficient in production, and which is capable of a short recovery time after a quench event.</p> |
