GB317781A - Improvements relating to electric circuit breakers - Google Patents
Improvements relating to electric circuit breakersInfo
- Publication number
- GB317781A GB317781A GB23046/29A GB2304629A GB317781A GB 317781 A GB317781 A GB 317781A GB 23046/29 A GB23046/29 A GB 23046/29A GB 2304629 A GB2304629 A GB 2304629A GB 317781 A GB317781 A GB 317781A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vacuum
- electrodes
- baffles
- arc
- electric circuit
- 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
- H01H33/60—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
- H01H33/662—Housings or protective screens
- H01H33/66238—Specific bellows details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/22—Means for obtaining or maintaining the desired pressure within the tube
- H01J17/24—Means for absorbing or adsorbing gas, e.g. by gettering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
- H01J41/12—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
317,781. Associated Electrical Industries, Ltd., (Assignees of Eschholz, O H.). Aug. 22, 1928, [Convention date]. High vacua, maintaining.-The vacuum in an electric switch in which the circuit is broken in a high vacuum and decarbonization is prevented by baffles 26 is maintained by constructing the baffles of a material, e.g. aluminium, easily sublimed by the heat developed by the arc at break. The metal, in condensing again, absorbs any occluded gases In addition, a device consisting of a spark gap with calcium electrodes 34 communicates with the vacuum chamber and the electrodes are permanently connected with a source of high tension 35 so that, if the vacuum becomes impaired, an arc is started between the electrodes which serve as a " getter " for absorbing gases and re-establishing the vacuum.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US301271A US1819154A (en) | 1928-08-22 | 1928-08-22 | Vacuum circuit breaker |
Publications (1)
Publication Number | Publication Date |
---|---|
GB317781A true GB317781A (en) | 1930-10-02 |
Family
ID=23162660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB23046/29A Expired GB317781A (en) | 1928-08-22 | 1929-07-26 | Improvements relating to electric circuit breakers |
Country Status (4)
Country | Link |
---|---|
US (1) | US1819154A (en) |
DE (1) | DE549243C (en) |
FR (1) | FR680473A (en) |
GB (1) | GB317781A (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE975483C (en) * | 1943-02-21 | 1961-12-07 | Aeg | High voltage vacuum switch |
US2892911A (en) * | 1956-12-24 | 1959-06-30 | Gen Electric | Vacuum-type circuit interrupter |
US2979588A (en) * | 1958-12-09 | 1961-04-11 | Jennings Radio Mfg Corp | Vacuum switch |
US3129308A (en) * | 1961-04-22 | 1964-04-14 | Nippon Electric Co | Vacuum circuit breaker having buffering means in relatively stationary electrode structure |
GB1014509A (en) * | 1961-05-02 | 1965-12-31 | Ass Elect Ind | Improvements in and relating to vacuum switches |
US3163734A (en) * | 1962-01-26 | 1964-12-29 | Gen Electric | Vacuum-type circuit interrupter with improved vapor-condensing shielding |
US3403297A (en) * | 1966-03-17 | 1968-09-24 | Gen Electric | Vacuum-type circuit interrupter with pressure-monitoring means |
US3920941A (en) * | 1972-08-10 | 1975-11-18 | Westinghouse Electric Corp | Contact-operating mechanism for breaking vacuum interrupter contact-welds by bending action of the movable contact rod |
US4267415A (en) * | 1977-10-06 | 1981-05-12 | Electric Power Research Institute | Current limiter vacuum envelope |
US4216361A (en) * | 1978-11-17 | 1980-08-05 | Westinghouse Electric Corp. | Low voltage vacuum switch with plural conic shields about the contacts |
GB2594101A (en) * | 2020-04-14 | 2021-10-20 | Eaton Intelligent Power Ltd | Sealing for an intermittent and partial rotating and translating shaft |
-
1928
- 1928-08-22 US US301271A patent/US1819154A/en not_active Expired - Lifetime
-
1929
- 1929-07-26 GB GB23046/29A patent/GB317781A/en not_active Expired
- 1929-08-15 DE DES93391D patent/DE549243C/en not_active Expired
- 1929-08-19 FR FR680473D patent/FR680473A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE549243C (en) | 1932-04-25 |
FR680473A (en) | 1930-05-01 |
US1819154A (en) | 1931-08-18 |
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