GB1138829A - Cryogenic switch - Google Patents
Cryogenic switchInfo
- Publication number
- GB1138829A GB1138829A GB9564/67A GB956467A GB1138829A GB 1138829 A GB1138829 A GB 1138829A GB 9564/67 A GB9564/67 A GB 9564/67A GB 956467 A GB956467 A GB 956467A GB 1138829 A GB1138829 A GB 1138829A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conductors
- switch
- blade
- blocks
- plunger
- 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
Links
- 239000004020 conductor Substances 0.000 abstract 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 2
- 229910052802 copper Inorganic materials 0.000 abstract 2
- 239000010949 copper Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 239000002887 superconductor Substances 0.000 abstract 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- 229910052734 helium Inorganic materials 0.000 abstract 1
- 239000001307 helium Substances 0.000 abstract 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract 1
- 229910052738 indium Inorganic materials 0.000 abstract 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- GFUGMBIZUXZOAF-UHFFFAOYSA-N niobium zirconium Chemical compound [Zr].[Nb] GFUGMBIZUXZOAF-UHFFFAOYSA-N 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R35/00—Flexible or turnable line connectors, i.e. the rotation angle being limited
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/002—Very heavy-current switches
- H01H33/004—Very heavy-current switches making use of superconducting contacts
-
- 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
- Y10S505/882—Circuit maker or breaker
Landscapes
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
1,138,829. Switch contacts; mechanical switches; superconductors. AVCO CORP. 28 Feb., 1967 [26 April, 1966], No. 9564/67. Headings H1K and H1N. An electrical switch for use at cryogenic temperatures has two contacts each of which comprises a surface of non-superconductive metal and a superconductor electrically connected to the surface, and switch-closing means for placing the surfaces in contact with one another under such pressure that substantially minimum contact resistance is provided between the surfaces. Switch blade 21 comprises two conductors 34, 35 each consisting of copper coated wires (36) of superconductive material such as niobium-zirconium embedded in a copper ribbon (37) with its outer face 34b, 35b plated with silver, gold, indium or tin, the two conductors 34, 35 placed together with the plated surfaces 34b, 35b outwardly and with a metal strengthener 45 between them for the operative part of their length. Switch block 22 comprises conductors 51, 52 substantially identical with conductors 34, 35, mounted in insulating blocks 53, 54 for sliding movement on rods 55, 56. Switch blade 21 is fixed to base 42 at 41 by blocks 43 and one end is raised or lowered by plunger 23. To close the switch, plunger 23 is pushed down to bring conductors 34, 35 into register with conductors 51, 52, then shaft 25 is rotated to actuate cams 27 and through pressure plates 28 force blocks 53 and 54 towards blade 21 and lock them in position. Blocks 53, 54 may be spring loaded to urge them away from blade 21 when in the unlocked position to eliminate or reduce sliding contact between the conductors when blade 21 is being raised or lowered. A graph is given of surface resistivity over contact pressure for the different surface materials at 4À2 K. In a modification only one conductor 34 or 35 and one conductor 51 or 52 may be provided, plunger 23 and shaft 25 may be actuated by a single operation and one or more conductors may be arranged to move in a direction normal to their surfaces. The switch is intended for use suspended with a superconducting coil (1) in liquid helium (10) to act as a shunt across the coil.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US545425A US3349209A (en) | 1966-04-26 | 1966-04-26 | Cryogenic switch |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1138829A true GB1138829A (en) | 1969-01-01 |
Family
ID=24176190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9564/67A Expired GB1138829A (en) | 1966-04-26 | 1967-02-28 | Cryogenic switch |
Country Status (6)
Country | Link |
---|---|
US (1) | US3349209A (en) |
CH (1) | CH465693A (en) |
DE (2) | DE1994001U (en) |
FR (1) | FR1515650A (en) |
GB (1) | GB1138829A (en) |
SE (1) | SE335753B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3427391A (en) * | 1967-09-20 | 1969-02-11 | Avco Corp | Composite superconductive conductor |
FR2102916A5 (en) * | 1970-08-28 | 1972-04-07 | Comp Generale Electricite | |
JPS5533579B2 (en) * | 1974-05-15 | 1980-09-01 | ||
DE3150294C2 (en) * | 1981-12-18 | 1984-01-26 | Siemens AG, 1000 Berlin und 8000 München | Contact device for low-resistance connection of the end pieces of two high-current superconductors |
DE3240019A1 (en) * | 1982-10-28 | 1984-05-03 | Siemens AG, 1000 Berlin und 8000 München | CONTINUOUS CURRENT SWITCH FOR SHORT-CLOSING AT LEAST ONE SUPRAL-CONDUCTING MAGNETIC WINDING |
US4602231A (en) * | 1984-07-20 | 1986-07-22 | Ga Technologies Inc. | Spaced stabilizing means for a superconducting switch |
US4982571A (en) * | 1989-08-03 | 1991-01-08 | Westinghouse Electric Corp. | Safety apparatus for superconducting magnetic energy stored system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3096421A (en) * | 1958-04-16 | 1963-07-02 | Walter G Finch | Superconducting contact devices |
BE635360A (en) * | 1962-10-02 |
-
1966
- 1966-04-26 US US545425A patent/US3349209A/en not_active Expired - Lifetime
-
1967
- 1967-02-28 GB GB9564/67A patent/GB1138829A/en not_active Expired
- 1967-03-28 FR FR100378A patent/FR1515650A/en not_active Expired
- 1967-03-30 SE SE04378/67A patent/SE335753B/xx unknown
- 1967-03-30 CH CH445067A patent/CH465693A/en unknown
- 1967-04-03 DE DEA27461U patent/DE1994001U/en not_active Expired
- 1967-04-03 DE DE1967A0055336 patent/DE1615591B1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1994001U (en) | 1968-09-19 |
DE1615591B1 (en) | 1971-08-26 |
US3349209A (en) | 1967-10-24 |
SE335753B (en) | 1971-06-07 |
FR1515650A (en) | 1968-03-01 |
CH465693A (en) | 1968-11-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1138829A (en) | Cryogenic switch | |
US4021633A (en) | Persistent current switch including electrodes forming parallel conductive and superconductive paths | |
GB1152753A (en) | Composite Superconductive Conductor and Coil using same | |
GB1045512A (en) | Superconducting solenoid | |
GB1285844A (en) | Cooling device for superconducting coils | |
US3098967A (en) | Cryotron type switching device | |
US4635015A (en) | Switching device for shorting at least one superconducting magnet winding | |
ES333185A1 (en) | Method and apparatus for releasing electric energy | |
US4112275A (en) | Contact structure for electrical switching apparatus | |
EP0327683B1 (en) | Superconducting switching device | |
US3022468A (en) | Superconductor oscillator | |
KR100275091B1 (en) | Electric lead | |
US3751721A (en) | Sns supercurrent device | |
US3145284A (en) | Superconductive electric switch | |
US2988605A (en) | Circuit breaker apparatus | |
GB1473249A (en) | Electrical switching contacts | |
GB921783A (en) | Improvements in cryogenic electronic devices | |
GB1445351A (en) | Superconductor magnet systems | |
JPS5994889A (en) | Permanent current switch for shortcircuiting superconductivemagnet coil | |
US3096421A (en) | Superconducting contact devices | |
GB1442524A (en) | Superconductive switches | |
GB862178A (en) | Improvements in apparatus for controlling electric currents | |
GB1405589A (en) | Elongate electrical conductor | |
US3061737A (en) | Cryogenic device wherein persistent current loop induced in outer superconductor maintains inner superconductor resistive | |
KR900000519Y1 (en) | Electro magnetic relay of no load |