GB1225007A - Improvements in electrical conductors for cryogenic enclosures - Google Patents

Improvements in electrical conductors for cryogenic enclosures

Info

Publication number
GB1225007A
GB1225007A GB48799/68A GB4879968A GB1225007A GB 1225007 A GB1225007 A GB 1225007A GB 48799/68 A GB48799/68 A GB 48799/68A GB 4879968 A GB4879968 A GB 4879968A GB 1225007 A GB1225007 A GB 1225007A
Authority
GB
United Kingdom
Prior art keywords
oct
electrical conductors
impedance
electrical
cryogenic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB48799/68A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Publication of GB1225007A publication Critical patent/GB1225007A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00—Superconducting magnets; Superconducting coils
    • H01F6/06—Coils, e.g. winding, insulating, terminating or casing arrangements therefor
    • H01F6/065—Feed-through bushings, terminals and joints
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S505/00—Superconductor technology: apparatus, material, process
    • Y10S505/825—Apparatus per se, device per se, or process of making or operating same
    • Y10S505/884—Conductor
    • Y10S505/885—Cooling, or feeding, circulating, or distributing fluid; in superconductive apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulators (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)

Abstract

1,225,007. Electric couplings. COMPAGNIE GENERALE D'ELECTRICITE. 15 Oct., 1968 [26 Oct., 1967], No. 48799/68. Heading H2E. To carry large currents from a region at a moderately low temperature or at room temperature (80-300‹ K) to coils immersed in liquid helium (4À2‹ K) with minimized heat and power losses a composite conductor is used. A formula is given to determine the lengths A, B of respective " hot " and " cold " portions, the cross-sectional areas of each portion and their electrical and thermal resistivities. Portion A comprised of sections A 1 , A 2 should have a large thermal impedance which is enhanced by perforations which allow the gases from the cryogenic liquid to remove additional heat. Portion B should have minimum electrical impedance and is preferably made of annealed copper or a superconducting niobium-tin alloy.
GB48799/68A 1967-10-26 1968-10-15 Improvements in electrical conductors for cryogenic enclosures Expired GB1225007A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR126062 1967-10-26

Publications (1)

Publication Number Publication Date
GB1225007A true GB1225007A (en) 1971-03-17

Family

ID=8640825

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48799/68A Expired GB1225007A (en) 1967-10-26 1968-10-15 Improvements in electrical conductors for cryogenic enclosures

Country Status (4)

Country Link
US (1) US3542937A (en)
DE (1) DE1805250A1 (en)
FR (1) FR1548640A (en)
GB (1) GB1225007A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2164706B1 (en) * 1971-12-27 1973-06-20 Siemens Ag, 1000 Berlin U. 8000 Muenchen Power supply for electrical equipment with conductors cooled to low temperature
JPS5716750B2 (en) * 1973-06-08 1982-04-07
CH597677A5 (en) * 1975-04-09 1978-04-14 Siemens Ag
US4187387A (en) * 1979-02-26 1980-02-05 General Dynamics Corporation Electrical lead for cryogenic devices
US4600802A (en) * 1984-07-17 1986-07-15 University Of Florida Cryogenic current lead and method
US4965246A (en) * 1987-03-31 1990-10-23 Sumitomo Electric Industries, Ltd. Current-carrying lead formed of a ceramic superconductive material carried by a support
FR2637728A1 (en) * 1988-10-11 1990-04-13 Alsthom Gec Low-loss cryogenic power lead
US20160040830A1 (en) * 2014-08-11 2016-02-11 Raytheon Company Cryogenic assembly including carbon nanotube electrical interconnect

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3343035A (en) * 1963-03-08 1967-09-19 Ibm Superconducting electrical power transmission systems
US3263193A (en) * 1964-10-19 1966-07-26 Richard J Allen Superconducting to normal conducting cable transition

Also Published As

Publication number Publication date
DE1805250A1 (en) 1969-06-26
US3542937A (en) 1970-11-24
FR1548640A (en) 1968-12-06

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