SE335753B - - Google Patents
Info
- Publication number
- SE335753B SE335753B SE04378/67A SE437867A SE335753B SE 335753 B SE335753 B SE 335753B SE 04378/67 A SE04378/67 A SE 04378/67A SE 437867 A SE437867 A SE 437867A SE 335753 B SE335753 B SE 335753B
- Authority
- SE
- Sweden
- Prior art keywords
- conductors
- switch
- blade
- blocks
- plunger
- Prior art date
Links
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 |
---|---|
SE335753B true SE335753B (en) | 1971-06-07 |
Family
ID=24176190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE04378/67A SE335753B (en) | 1966-04-26 | 1967-03-30 |
Country Status (6)
Country | Link |
---|---|
US (1) | US3349209A (en) |
CH (1) | CH465693A (en) |
DE (2) | DE1615591B1 (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 |
NL295762A (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 CH CH445067A patent/CH465693A/en unknown
- 1967-03-30 SE SE04378/67A patent/SE335753B/xx unknown
- 1967-04-03 DE DE1967A0055336 patent/DE1615591B1/en active Pending
- 1967-04-03 DE DEA27461U patent/DE1994001U/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3349209A (en) | 1967-10-24 |
GB1138829A (en) | 1969-01-01 |
DE1615591B1 (en) | 1971-08-26 |
FR1515650A (en) | 1968-03-01 |
CH465693A (en) | 1968-11-30 |
DE1994001U (en) | 1968-09-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR1605125A (en) | Composite superconductors | |
US3054978A (en) | Heat responsive superconductive switching devices | |
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 | |
US3098967A (en) | Cryotron type switching device | |
US4635015A (en) | Switching device for shorting at least one superconducting magnet winding | |
US3479569A (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 | |
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 | |
JPS6420675A (en) | Superconducting device |