GB317781A - Improvements relating to electric circuit breakers - Google Patents

Improvements relating to electric circuit breakers

Info

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
Application number
GB23046/29A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Publication of GB317781A publication Critical patent/GB317781A/en
Expired legal-status Critical Current

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.
GB23046/29A 1928-08-22 1929-07-26 Improvements relating to electric circuit breakers Expired GB317781A (en)

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)

* Cited by examiner, † Cited by third party
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

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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