GB1143829A - - Google Patents
Info
- Publication number
- GB1143829A GB1143829A GB1143829DA GB1143829A GB 1143829 A GB1143829 A GB 1143829A GB 1143829D A GB1143829D A GB 1143829DA GB 1143829 A GB1143829 A GB 1143829A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- contact elements
- fingers
- extruded
- vacuum switch
- 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.)
- Active
Links
Classifications
-
- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
- H01H33/6642—Contacts; Arc-extinguishing means, e.g. arcing rings having cup-shaped contacts, the cylindrical wall of which being provided with inclined slits to form a coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/0203—Contacts characterised by the material thereof specially adapted for vacuum switches
Landscapes
- Contacts (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Manufacture Of Switches (AREA)
Abstract
1,143,829. Vacuum switch contacts. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 29 Nov., 1967 [21 Dec., 1966], No. 57232/66. Heading H1N. The contacts of a vacuum switch are provided with an annular contact making surface 3 formed of a plurality of contact elements 3A, 3B, 3C, each supported on a finger 9 inclined to the contact surface, the contact elements being of a copper-bismuth alloy containing 0-05 to 1 % bismuth which has been extruded at a temperature in the range 300-950‹ C. Such a material, which is described in Specification 1,078,657, provides a contact with fine grain structure. The extruded alloy may be annealed. The fingers 9 may be formed by slotting an annular ridge as described in Specification 997,384 or be provided by resilient members secured to a base as described in Specification 1,113,837. The contact elements are brazed into recesses 13 in the tips of the fingers.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5723266 | 1966-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1143829A true GB1143829A (en) |
Family
ID=10478687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1143829D Active GB1143829A (en) | 1966-12-21 |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE708390A (en) |
CH (1) | CH485308A (en) |
DE (1) | DE1615672A1 (en) |
FR (1) | FR1569633A (en) |
GB (1) | GB1143829A (en) |
NL (1) | NL6717432A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5257975A (en) * | 1975-11-07 | 1977-05-12 | Tokyo Shibaura Electric Co | Vacuum valve circuit breaker |
US4390762A (en) * | 1980-03-14 | 1983-06-28 | Siemens Aktiengesellschaft | Contact piece for an electric vacuum switch |
-
0
- GB GB1143829D patent/GB1143829A/en active Active
-
1967
- 1967-12-19 FR FR1569633D patent/FR1569633A/fr not_active Expired
- 1967-12-20 DE DE19671615672 patent/DE1615672A1/en active Pending
- 1967-12-20 CH CH1784267A patent/CH485308A/en not_active IP Right Cessation
- 1967-12-20 NL NL6717432A patent/NL6717432A/xx unknown
- 1967-12-21 BE BE708390D patent/BE708390A/xx unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5257975A (en) * | 1975-11-07 | 1977-05-12 | Tokyo Shibaura Electric Co | Vacuum valve circuit breaker |
US4390762A (en) * | 1980-03-14 | 1983-06-28 | Siemens Aktiengesellschaft | Contact piece for an electric vacuum switch |
Also Published As
Publication number | Publication date |
---|---|
BE708390A (en) | 1968-05-02 |
CH485308A (en) | 1970-01-31 |
FR1569633A (en) | 1969-06-06 |
DE1615672A1 (en) | 1970-06-18 |
NL6717432A (en) | 1968-06-24 |
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