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GB1251583A - - Google Patents

Info

Publication number
GB1251583A
GB1251583A GB1251583DA GB1251583A GB 1251583 A GB1251583 A GB 1251583A GB 1251583D A GB1251583D A GB 1251583DA GB 1251583 A GB1251583 A GB 1251583A
Authority
GB
United Kingdom
Prior art keywords
base
shoulder
contact portion
annular
arc
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
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 filed Critical
Publication of GB1251583A publication Critical patent/GB1251583A/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
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H01H33/6643—Contacts; Arc-extinguishing means, e.g. arcing rings having disc-shaped contacts subdivided in petal-like segments, e.g. by helical grooves

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Thermally Actuated Switches (AREA)
  • Manufacture Of Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

1,251,583. Vacuum switches; contacts. GENERAL ELECTRIC CO. 28 Feb., 1969 [8 March, 1968], No. 10858/69. Heading H1N. A contact for a vacuum switch has a discshaped base portion formed with an annular groove 51 and an annular contact portion 25 formed with an inward annular shoulder 53 and received within the groove 51, the central part 55 of the base being deformed at 57 to grip the shoulder 53. The contact portion 25 is brazed to base 18 at 60 and current is normally conducted through the brazed joint. Should the latter fail current flows instead through the shoulder 53 and lip 57. It is stated that under suitable conditions the heat generated by the current flowing along the alternative, higher resistance, path may be sufficient to remake the joint at 60. The disc shaped base is slotted at 32 as described in Specification 1,250,420 to provide radial and circumferential fingers 33, the current flowing in these when the arc is transferred causing the arc to rotate in known manner. The slots 32 extend inwardly (36) of the lower edge of the contact portion 25.
GB1251583D 1968-03-08 1969-02-28 Expired GB1251583A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71175968A 1968-03-08 1968-03-08

Publications (1)

Publication Number Publication Date
GB1251583A true GB1251583A (en) 1971-10-27

Family

ID=24859396

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1251583D Expired GB1251583A (en) 1968-03-08 1969-02-28

Country Status (6)

Country Link
US (1) US3576960A (en)
JP (1) JPS4844512B1 (en)
CH (1) CH492292A (en)
DE (1) DE1911071C3 (en)
FR (1) FR2003539A1 (en)
GB (1) GB1251583A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6129151Y2 (en) * 1979-10-09 1986-08-28
JPS5715319A (en) * 1980-07-01 1982-01-26 Meidensha Electric Mfg Co Ltd Vacuum breaker and method of producing same
JPS5772527U (en) * 1980-10-21 1982-05-04
JPS63105419A (en) * 1986-10-23 1988-05-10 株式会社東芝 Vacuum valve
DE19934909C1 (en) * 1999-07-21 2001-06-13 Siemens Ag Contact arrangement for a vacuum interrupter
US9704658B2 (en) * 2014-11-17 2017-07-11 Eaton Corporation Vacuum switching apparatus, and contact assembly and method of securing an electrical contact to an electrode therefor
FR3116938A1 (en) * 2020-11-30 2022-06-03 Schneider Electric Industries Sas Improved arc breaking medium voltage vacuum interrupter contact and associated vacuum interrupter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3158719A (en) * 1962-04-03 1964-11-24 Gen Electric Contact structure for an electric circuit interrupter
US3263050A (en) * 1964-11-25 1966-07-26 Allis Chalmers Mfg Co Electrical contact comprising a plurality of flexible curved wires
US3366762A (en) * 1965-04-16 1968-01-30 Gen Electric Arc controlling electrodes for switches and gaps
US3368049A (en) * 1965-05-07 1968-02-06 Jennings Radio Mfg Corp High current radio frequency switch
JPS451489B1 (en) * 1966-03-28 1970-01-19

Also Published As

Publication number Publication date
US3576960A (en) 1971-05-04
DE1911071A1 (en) 1969-10-30
CH492292A (en) 1970-06-15
DE1911071C3 (en) 1978-08-31
FR2003539A1 (en) 1969-11-07
JPS4844512B1 (en) 1973-12-25
DE1911071B2 (en) 1977-12-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee