US3127490A - Extinguishing device for electrical arcs - Google Patents

Extinguishing device for electrical arcs Download PDF

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Publication number
US3127490A
US3127490A US121432A US12143261A US3127490A US 3127490 A US3127490 A US 3127490A US 121432 A US121432 A US 121432A US 12143261 A US12143261 A US 12143261A US 3127490 A US3127490 A US 3127490A
Authority
US
United States
Prior art keywords
plates
insulating
conductive members
conductive
insulating plates
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 - Lifetime
Application number
US121432A
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English (en)
Inventor
Latour Andre
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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin SA
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 Merlin Gerin SA filed Critical Merlin Gerin SA
Application granted granted Critical
Publication of US3127490A publication Critical patent/US3127490A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • 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
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/341—Barrier plates carrying electrodes

Definitions

  • the conductive members are connected to the insulating plates at two different horizontal levels and in a set of a plurality of consecutively stacked insulating plates.
  • a plate having a conductive member disposed at a different level is always interposed between two plates carrying a conductive member at the same level.
  • the spacing ribs 11 are provided with a groove 12 in which a sealing member is arranged to thereby provide a tight seal between adjacent insulating plates.
  • Vertical parallel ribs 13 are provided on the upper part of the insulating plates and define discharge or exhaust channels for the ionized gases which develop during the circuit breaking and are extinguishing operation.
  • the upper part of the insulating plate is shown and described merely for the purpose of explanation and does not form a part of the present invention.
  • the lower edge of insulating plate 1 is embraced or straddled by conductive member 14 which comprises two legs or wings 15 and 16 located on opposite faces of the insulating plate. The two wings are interconnected by a web portion 17 which engages a slightly cutout section along the lower edge of the insulating plate.
  • the conductive members 14 which are connected at the lower edge of the associated insulating plate are particularly distinctive in that each wing has an inwardly extending curvilinear recess 18.
  • the path of the lines of current in the conductive members have the form of spiral convolutions and several such lines of current interconnected by arcing over constitute a solenoid which has the efiect of urging or driving the arcs upwardly into the extinguishing chambers.
  • the curvilinear recesses 18 provided in conductive members 14 contribute also effectively to the formation of such solenoid effects.
  • the vertically upward displacement of the conductive members to the top of the notched portions. provide an additional upward pull on the initial arcs.
  • first insulating plates having on each of two opposed faces conductive means connected to each other at the lower end of said plates and extending upwardly to a predetermined level, second insulating plates having a notched portion extending upwardly from the lower edge thereof, each second plate being disposed between two adjacent first plates, said first and said second plates being disposed face to face and transversely of the established arc, an upwardly extending conductive member connected to said notched insulating plates at the top edge of said notched portions, spacing members between adjacent insulating plates to form a chambered space between said plates, said conductive members on said first insulating plates having a recess surrounding the base portion of the conductive member of said second insulating plates to provide a point of least dielectric resistance between the conductive means in each space between adjacent plates and located above the base portion of the conductive members of said second insulating plates to draw the are upwardly between said insulating plates.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
US121432A 1960-07-01 1961-07-03 Extinguishing device for electrical arcs Expired - Lifetime US3127490A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR4261A FR1269356A (fr) 1960-07-01 1960-07-01 Perfectionnements à un dispositif d'extinction d'arc

Publications (1)

Publication Number Publication Date
US3127490A true US3127490A (en) 1964-03-31

Family

ID=9692782

Family Applications (1)

Application Number Title Priority Date Filing Date
US121432A Expired - Lifetime US3127490A (en) 1960-07-01 1961-07-03 Extinguishing device for electrical arcs

Country Status (6)

Country Link
US (1) US3127490A (fr)
BE (1) BE605410A (fr)
CH (1) CH370138A (fr)
DE (1) DE1139176B (fr)
FR (1) FR1269356A (fr)
GB (1) GB939710A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3495056A (en) * 1965-07-22 1970-02-10 Ite Imperial Corp Current limiting interrupter with arc-inserted non-linear resistors
US3518387A (en) * 1966-04-14 1970-06-30 Magrini Fab Riun Scarpa Arc-quenching electrode assembly for high-power circuit breakers and switches

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1186929B (de) * 1961-11-23 1965-02-11 Merlin Gerin Lichtbogenloeschvorrichtung mit Teilloeschkammern

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB715121A (en) * 1951-05-18 1954-09-08 British Electrical & Allied In Improvements relating to electric circuit interruptors having arc-extinguishing arrangements
US2750476A (en) * 1949-10-13 1956-06-12 Merlin Gerin Method and device for extinguishing electrical arcs in circuit breakers
US2847540A (en) * 1955-11-10 1958-08-12 Licentia Gmbh Device for extinguishing electrical arcs
US2868927A (en) * 1956-05-03 1959-01-13 Ite Circuit Breaker Ltd Solenoid interrupter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750476A (en) * 1949-10-13 1956-06-12 Merlin Gerin Method and device for extinguishing electrical arcs in circuit breakers
US2783336A (en) * 1949-10-13 1957-02-26 Merlin Gerin Arc extinguishing chamber
GB715121A (en) * 1951-05-18 1954-09-08 British Electrical & Allied In Improvements relating to electric circuit interruptors having arc-extinguishing arrangements
US2847540A (en) * 1955-11-10 1958-08-12 Licentia Gmbh Device for extinguishing electrical arcs
US2868927A (en) * 1956-05-03 1959-01-13 Ite Circuit Breaker Ltd Solenoid interrupter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3495056A (en) * 1965-07-22 1970-02-10 Ite Imperial Corp Current limiting interrupter with arc-inserted non-linear resistors
US3518387A (en) * 1966-04-14 1970-06-30 Magrini Fab Riun Scarpa Arc-quenching electrode assembly for high-power circuit breakers and switches

Also Published As

Publication number Publication date
DE1139176B (de) 1962-11-08
BE605410A (fr) 1961-10-16
GB939710A (en) 1963-10-16
FR1269356A (fr) 1961-08-11
CH370138A (fr) 1963-06-30

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