GB1291045A - Contact structures for vacuum-type circuit interrupters having radially outwardly-extending spokes - Google Patents

Contact structures for vacuum-type circuit interrupters having radially outwardly-extending spokes

Info

Publication number
GB1291045A
GB1291045A GB2849/70A GB284970A GB1291045A GB 1291045 A GB1291045 A GB 1291045A GB 2849/70 A GB2849/70 A GB 2849/70A GB 284970 A GB284970 A GB 284970A GB 1291045 A GB1291045 A GB 1291045A
Authority
GB
United Kingdom
Prior art keywords
contact
vacuum
extensions
radially outwardly
contact structures
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
GB2849/70A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1291045A publication Critical patent/GB1291045A/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

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

1291045 Vacuum switch contacts WESTINGHOUSE ELECTRIC CORP 21 Jan 1970 [10 Feb 1969] 2849/70 Heading H1N The contact of a vacuum switch has radial extensions 19 set back from the contact surface 8a on to which the arc transfers. The extensions are narrowest adjacent the central contact 8a so that they transfer a minimum of heat back to the contact. The extensions are separated by equal spaces. The contact 8a may be of an alloy of copper with 0À3% bismuth and the extensions of pure copper (with a lower arcing voltage).
GB2849/70A 1969-02-10 1970-01-21 Contact structures for vacuum-type circuit interrupters having radially outwardly-extending spokes Expired GB1291045A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79793069A 1969-02-10 1969-02-10

Publications (1)

Publication Number Publication Date
GB1291045A true GB1291045A (en) 1972-09-27

Family

ID=25172125

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2849/70A Expired GB1291045A (en) 1969-02-10 1970-01-21 Contact structures for vacuum-type circuit interrupters having radially outwardly-extending spokes

Country Status (5)

Country Link
US (1) US3667871A (en)
AT (1) AT294964B (en)
CH (1) CH503365A (en)
DE (1) DE2003781A1 (en)
GB (1) GB1291045A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3814880A (en) * 1972-06-20 1974-06-04 Westinghouse Electric Corp Vacuum interrupter contacts having energy dissipation surfaces
US3889081A (en) * 1972-06-20 1975-06-10 Westinghouse Electric Corp Vacuum interrupter contacts having energy dissipation surfaces

Also Published As

Publication number Publication date
US3667871A (en) 1972-06-06
AT294964B (en) 1971-12-10
DE2003781A1 (en) 1970-09-03
CH503365A (en) 1971-02-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees