发明名称 |
Terminal structure of superconducting cable |
摘要 |
A terminal structure of a superconducting cable is provided that is capable of preventing degradation in airtightness of a seal provided on the boundary between a room-temperature side and a cryogenic side for a long-term use. The terminal structure includes a terminal of a superconducting cable, a bushing providing electrical conduction with a superconducting conductor of the cable, and a refrigerant bath housing the terminal and the bushing. The refrigerant bath includes a liquid nitrogen layer in its cryogenic side and a nitrogen gas layer in its room-temperature side that are adjacent to each other. In the nitrogen gas layer, distance t between an inner surface of the refrigerant bath and an outer periphery of the bushing is dimensioned such that nitrogen gas is kept in a gaseous state without being pressurized by a pressurizer and respective pressures of nitrogen gas and liquid nitrogen counterbalance each other.
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申请公布号 |
US7729731(B2) |
申请公布日期 |
2010.06.01 |
申请号 |
US20050591949 |
申请日期 |
2005.02.15 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
ASHIBE YUUICHI;MASUDA TAKATO |
分类号 |
H01B12/00;H02G15/34 |
主分类号 |
H01B12/00 |
代理机构 |
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