Power lead for electrically connecting a superconducting coil to a power supply
OwnerSataro Yamaguchi, Kiyoshi Takita +3inventors
InventorsSataro Yamaguchi, Kiyoshi Takita, Ikuo Itoh, Hisaaki Hiue, Shinichi Nose
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Abstract
A power lead for electrically connecting a superconducting coil with a power supply, comprising thermoelectric cooling means, said means including at least an N-type thermoelectric member and a P-type thermoelectric member, being electrically connected to a positive side and a negative side of said power supply, respectively.
Claims4
A power lead providing an excitation current from an external power supply to a superconducting coil immersed in a liquid helium contained in a vacuum cryostat, comprising:
- a metal conductor;
- and a high-temperature superconducting member provided in this order from a room temperature side;
- a heat conducting member which is electrically insulating provided close to an end of said metal conductor on a side facing to said superconducting coil, said heat conducting member conducting heat from said metal conductor, and;
- a thermoelectric cooling means for cooling said metal conductor, said high temperature superconducting member and said superconducting coil through said heat conducting member.
A power lead providing an excitation current from an external power supply, to a superconducting coil, said coil being set to a superconducting status when being cooled by a first cooling means, comprising:
- a metal conductor connected to the power supply and cooled at a predetermined temperature by a second cooling means, and an N-type thermoelectric member and/or a P-type thermoelectric member connected to said metal conductor, provided in this order from a room temperature side, to be further electrically connected directly or indirectly to the superconducting coil.
Dependencies are inferred from the claim text.