GB1369708A - Contact set for gas-blast switch - Google Patents
Contact set for gas-blast switchInfo
- Publication number
- GB1369708A GB1369708A GB2186672A GB2186672A GB1369708A GB 1369708 A GB1369708 A GB 1369708A GB 2186672 A GB2186672 A GB 2186672A GB 2186672 A GB2186672 A GB 2186672A GB 1369708 A GB1369708 A GB 1369708A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- cavity
- elements
- splashes
- nozzle
- 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
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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
- H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle
Landscapes
- Circuit Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
1369708 Gas-blast switches BBC BROWN BOVERI & CO Ltd 10 May 1972 [12 May 1971] 21866/72 Heading H1N A nozzle contact set for a gas-blast switch includes two contact elements 2, 3, one of which (3) is nozzle-shaped and has a toroidal cavity 4 with an annular gap 5 surrounding its mouth 3a, the arrangement protecting the extinguishing chamber insulator 1 from splashes of metal from the arc zone. The inner surface of the cavity 4 is roughened or lined with plastics material 7, Fig. 3 (not shown). Alternatively the cavity wall may be of insulating material secured on the contact element by a circlip, Fig. 2 (not shown). In a further embodiment, Fig. 4, the cavity 4 is accommodated in a sliding part 8. When the elements 2, 3, separate, exhaust valves (not shown), at their ends are opened and gas starts to flow, metal vapours and splashes move along the wall of cavity 4 and then are carried off through the hollow elements 2, 3, by the gas.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH700171A CH531246A (en) | 1971-05-12 | 1971-05-12 | Compressed gas switch with a nozzle contact arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1369708A true GB1369708A (en) | 1974-10-09 |
Family
ID=4318378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2186672A Expired GB1369708A (en) | 1971-05-12 | 1972-05-10 | Contact set for gas-blast switch |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5652419B1 (en) |
| CH (1) | CH531246A (en) |
| DE (2) | DE7120631U (en) |
| FR (1) | FR2137697B1 (en) |
| GB (1) | GB1369708A (en) |
| IT (1) | IT955314B (en) |
| NL (1) | NL155120B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL224968A (en) * | 1957-03-04 | |||
| CH353057A (en) * | 1957-03-04 | 1961-03-31 | Bbc Brown Boveri & Cie | Contact nozzle for circuit breakers |
| CH410110A (en) * | 1964-07-24 | 1966-03-31 | Bbc Brown Boveri & Cie | Compressed gas switch with at least one switching point located inside a hollow insulator |
-
1971
- 1971-05-12 CH CH700171A patent/CH531246A/en not_active IP Right Cessation
- 1971-05-27 DE DE19717120631 patent/DE7120631U/en not_active Expired
- 1971-05-27 DE DE19712126349 patent/DE2126349C2/en not_active Expired
-
1972
- 1972-03-30 JP JP3125972A patent/JPS5652419B1/ja active Pending
- 1972-05-09 NL NL7206274A patent/NL155120B/en not_active IP Right Cessation
- 1972-05-09 IT IT2407772A patent/IT955314B/en active
- 1972-05-10 GB GB2186672A patent/GB1369708A/en not_active Expired
- 1972-05-10 FR FR7216654A patent/FR2137697B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5652419B1 (en) | 1981-12-11 |
| IT955314B (en) | 1973-09-29 |
| FR2137697B1 (en) | 1980-02-22 |
| NL7206274A (en) | 1972-11-14 |
| CH531246A (en) | 1972-11-30 |
| FR2137697A1 (en) | 1972-12-29 |
| DE7120631U (en) | 1973-03-22 |
| DE2126349A1 (en) | 1972-11-23 |
| DE2126349C2 (en) | 1982-04-08 |
| NL155120B (en) | 1977-11-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |