GB220907A - Electric switches - Google Patents
Electric switchesInfo
- Publication number
- GB220907A GB220907A GB1172224A GB1172224A GB220907A GB 220907 A GB220907 A GB 220907A GB 1172224 A GB1172224 A GB 1172224A GB 1172224 A GB1172224 A GB 1172224A GB 220907 A GB220907 A GB 220907A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tubes
- escape
- contacts
- arc
- pressure
- 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
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/57—Recuperation of liquid or gas
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
220,907. British Thomson-Houston Co., Ltd., (General Electric Co.). May 12, 1924. Oil switches are arranged with a relatively unimpeded path of escape for the gases generated when an arc is drawn, which is independent of the depth of liquid over the contacts. When the movable contact rod 6, Fig. 1, is withdrawn from the fixed contacts 7 the arc gases pass into insulating tubes 8 the open ends of which are adjacent to the contacts. The tubes 8 have metal end portions 9 outside the switch tank 1 which are connected by pipes 17 to a gas reservoir 18 the pressure in which is sufficient to force down the liquid level in the tubes 8 so that a comparatively unimpeded path of escape for the arc gases is formed. The end pieces 9 are fitted with adjustably spring-loaded relief valves 11, Fig. 2, normally closed, but opened by rise of pressure in the tubes 8 to permit excess of gas to escape into the atmosphere through apertures 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US694405A US1724396A (en) | 1924-02-21 | 1924-02-21 | Electric switch |
| GB1172224A GB220907A (en) | 1924-05-12 | 1924-05-12 | Electric switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1172224A GB220907A (en) | 1924-05-12 | 1924-05-12 | Electric switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB220907A true GB220907A (en) | 1924-08-28 |
Family
ID=9991465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1172224A Expired GB220907A (en) | 1924-02-21 | 1924-05-12 | Electric switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB220907A (en) |
-
1924
- 1924-05-12 GB GB1172224A patent/GB220907A/en not_active Expired
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