GB474185A - Improvements in and relating to electric switches having arc quenching arrangements - Google Patents

Improvements in and relating to electric switches having arc quenching arrangements

Info

Publication number
GB474185A
GB474185A GB33328/36A GB3332836A GB474185A GB 474185 A GB474185 A GB 474185A GB 33328/36 A GB33328/36 A GB 33328/36A GB 3332836 A GB3332836 A GB 3332836A GB 474185 A GB474185 A GB 474185A
Authority
GB
United Kingdom
Prior art keywords
arc
coils
walls
gas
contact
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
GB33328/36A
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 GB474185A publication Critical patent/GB474185A/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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Circuit Breakers (AREA)

Abstract

474,185. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 4, 1936, No. 33328. Convention date, Dec. 5, 1935. [Class 38 (v)] Magnetic blow-outs.-In a switch in which arc-extinction is effected by gas evolved by the influence of the arc on insulating walls disposed adjacent-its path, in order to equalize the wear produced on the contacts and walls by the arc, one or more coils are provided on the walls for producing a radial field for causing the arc to wander. A coil or coils 8 are connected between the fixed contact 2 and an arcing ring 3, and are arranged on the walls of a gas-evolving, insulating body 6 which, with the insulating pin 7, forms the arcing space 4 receiving the tubular movable contact 1. In order to concentrate the flux 11, shortcircuited windings 12, 13 are provided, and in some circumstances the ring 3 may serve as such a winding. The arc-root on contact 1 may be additionally influenced magnetically by milling out grooves 14 of spiral shape, Fig. 2, whereby the individual contact-sections act as coils. Where several coils are employed the connection of the coils is such that the fields produced by successive coils are differently oriented, the arc being thus compelled to pass successively through differently-oriented fields and thus rapidly moved.
GB33328/36A 1935-12-05 1936-12-04 Improvements in and relating to electric switches having arc quenching arrangements Expired GB474185A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE474185X 1935-12-05

Publications (1)

Publication Number Publication Date
GB474185A true GB474185A (en) 1937-10-27

Family

ID=6541677

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33328/36A Expired GB474185A (en) 1935-12-05 1936-12-04 Improvements in and relating to electric switches having arc quenching arrangements

Country Status (2)

Country Link
US (1) US2140378A (en)
GB (1) GB474185A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671144A (en) * 1950-05-18 1954-03-02 Westinghouse Electric Corp Circuit interrupter
US3089936A (en) * 1960-02-23 1963-05-14 Gen Electric Contact structure for an electric circuit interrupter

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2590989A (en) * 1942-04-18 1952-04-01 Detroit Edison Co Circuit breaker
US2459599A (en) * 1944-09-20 1949-01-18 Westinghouse Electric Corp Circuit interrupter
US2697154A (en) * 1951-05-26 1954-12-14 Westinghouse Electric Corp Circuit interrupter
US2828380A (en) * 1955-03-14 1958-03-25 Westinghouse Electric Corp Flux phase shifter and high speed closing with contact construction
US2830151A (en) * 1955-12-09 1958-04-08 Hill George Leslie Circuit breaker
US3082308A (en) * 1957-12-06 1963-03-19 Westinghouse Electric Corp Circuit interrupter
US2949520A (en) * 1958-04-23 1960-08-16 Gen Electric Contact structure for an electric circuit interrupter
US3016438A (en) * 1958-12-22 1962-01-09 Heinemann Electric Co Induction blowout for circuit breakers
US3014108A (en) * 1959-01-02 1961-12-19 Gen Electric Vacuum switch
US3178546A (en) * 1961-12-04 1965-04-13 Gen Electric Orifice structure for circuit interrupter of fluid blast type
CH574673A5 (en) * 1974-08-20 1976-04-15 Bbc Brown Boveri & Cie
US4052577A (en) * 1975-09-02 1977-10-04 I-T-E Imperial Corporation Magnetically driven ring arc runner for circuit interrupter
US4052576A (en) * 1975-09-02 1977-10-04 I-T-E Imperial Corporation Contact structure for SF6 arc spinner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671144A (en) * 1950-05-18 1954-03-02 Westinghouse Electric Corp Circuit interrupter
US3089936A (en) * 1960-02-23 1963-05-14 Gen Electric Contact structure for an electric circuit interrupter

Also Published As

Publication number Publication date
US2140378A (en) 1938-12-13

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