GB312085A - Improvements in and relating to electric circuit interrupting systems - Google Patents

Improvements in and relating to electric circuit interrupting systems

Info

Publication number
GB312085A
GB312085A GB15494/29A GB1549429A GB312085A GB 312085 A GB312085 A GB 312085A GB 15494/29 A GB15494/29 A GB 15494/29A GB 1549429 A GB1549429 A GB 1549429A GB 312085 A GB312085 A GB 312085A
Authority
GB
United Kingdom
Prior art keywords
relating
electric circuit
circuit interrupting
systems
interrupting systems
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
GB15494/29A
Other languages
English (en)
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB312085A publication Critical patent/GB312085A/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
    • 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
    • H01H33/668—Means for obtaining or monitoring the vacuum
    • 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
    • H01H33/668—Means for obtaining or monitoring the vacuum
    • H01H33/6683—Means for obtaining or monitoring the vacuum by gettering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts
GB15494/29A 1928-05-19 1929-05-17 Improvements in and relating to electric circuit interrupting systems Expired GB312085A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US279156A US1733904A (en) 1928-05-19 1928-05-19 Circuit-interrupting system

Publications (1)

Publication Number Publication Date
GB312085A true GB312085A (en) 1930-10-17

Family

ID=23067874

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15494/29A Expired GB312085A (en) 1928-05-19 1929-05-17 Improvements in and relating to electric circuit interrupting systems

Country Status (5)

Country Link
US (1) US1733904A (enrdf_load_stackoverflow)
BE (1) BE360745A (enrdf_load_stackoverflow)
DE (1) DE529303C (enrdf_load_stackoverflow)
FR (1) FR702873A (enrdf_load_stackoverflow)
GB (1) GB312085A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2793328A (en) * 1953-12-14 1957-05-21 Cutler Hammer Inc Motor controller for use in explosive and corrosive atmospheres
US3090852A (en) * 1960-02-11 1963-05-21 Gen Electric Gettering arrangement for a vacuum circuit interrupter

Also Published As

Publication number Publication date
FR702873A (fr) 1931-04-18
US1733904A (en) 1929-10-29
DE529303C (de) 1931-07-11
BE360745A (enrdf_load_stackoverflow)

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