US2934629A - Arc blowing chimneys for circuit breakers having a large breaking capacity - Google Patents

Arc blowing chimneys for circuit breakers having a large breaking capacity Download PDF

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Publication number
US2934629A
US2934629A US682051A US68205157A US2934629A US 2934629 A US2934629 A US 2934629A US 682051 A US682051 A US 682051A US 68205157 A US68205157 A US 68205157A US 2934629 A US2934629 A US 2934629A
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United States
Prior art keywords
plates
arc
chute
extinguishing
chimneys
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Expired - Lifetime
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US682051A
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English (en)
Inventor
Bonnefois Jean
Huckel Robert
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Alcatel Lucent SAS
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Compagnie Generale dElectricite SA
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Publication of US2934629A publication Critical patent/US2934629A/en
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    • 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
    • H01H9/36—Metal parts

Definitions

  • FIG. 3 ARC BLOWING CHIMNEYS FOR CIRCUIT BREAKERS HAVING A LARGE BREAKING CAPACITY Filed Sept. 4, 1957 3 Sheets-Sheet 2 FIG. 3
  • FIG. 8 ARC BLOWING camusvs FOR cxacum BREAKERS HAVING A LARGE BREAKING CAPACITY 3 Sheets-Sheet 3 Filed Sept. 4, 1957 k I In! FIG. 8
  • the present invention obviates this by a simple modification of the structure of the plates, the overall arrangement used for all breaking capacities not being altered substantially.
  • Its object is a stack of defionization plates for an arc extinguishing arc chute consisting of a series ofmagnetic plates arranged parallel to one another or fanwise, characterized in that the plates are connected electrically in pairs, discontinuously through the stack of plates and in preference laterally with respect to the axis of the arc chute corresponding to the direction of motion of the are inside that are chute.
  • a sectioning of the arc is effected into a plurality of separate arc sections; the continuous path followed by the current consists of thesev arcsections interconnected by the paths followed by the current in the very thickness of plates and in the electric interconnections of said plates; channels are provided inside the plate pairs for the escape of hot gases from the arc formation, these channels not being traversed by the arc sections during the current breaking process.
  • the successive electric connections between two adjacent coupled plates may be alternately provided on either side of themiddle plane of the stack, so as to ensure the centering of the are by a balancing of the electro-dynamical stresses exerted on the arc sections; also the spacing between two adjacent non-coupled plates may be less than the spacing between twoladjacent coupled plates.
  • each pair of plates may consist of two 'ice plane sheets facing eachother, these two sheets being cambered along one of their edges at least, so as to unite them jointingly and electrically on that edge and in the direction of motion of the are.
  • each pair of plates may consist of two plane sheets facing each other and connected with each other by one or more conducting cross braces, offset towards the sheet edges.
  • the plates may be notched in a V in the zone of motion of the movable contact of the circuit breaker and of arc formation.
  • the bottoms of the Us may be cut at the height of that same zone of arc formation.
  • Figure 1 is a view in longitudinal section along the trace ABCD in Figure 2 and in elevation, of an arc chute in a circuit breaker, comprising a de-ionization stack according to the invention and with plates coupled into a U according to Figure 4.
  • Figure 2 is a view in transverse section and in elevation of the same are chute according to plane EF in Figure 1.
  • Figure 3 is a partial view in'transverse section and in plan of part of the plates and supporting structure of Figure 1.
  • FIG. 4 is a view in perspective of an example of two magnetic plates coupled into a U for a de-ionization stack according to the invention.
  • Figures 5, 7, 9 and 10 are partial views, in plan of an arc chute for are extinguishing for a circuit breaker showing four modified plate stacks according to the invention.
  • Figures 6 and 8 are views in perspective, of two magnetic plates coupled respectively according to Figures 5 and 7.
  • the pair of plates represented in Figure 4 is constituted 1 by a rectangular sheet of magnetic material which has been bent into a U along lines ef and gh.
  • the ecbg portion has been cut away, line cb being substantially at mid height of the plate;
  • two V-shaped notches 10 and 11 have also been cut away so as to face each other on the lower edge of the two branches of the U and in the middle thereof.
  • the entire outer surface of the U located above the line abcd, i.e. approximately the upper half of that surface is coated with an are resistant insulating material.
  • the plates may be coupled electrically only in the zone of about that one half of the plates opposite the arc formation zone; in that latter zone each of plates may be notched substantially along a V so as to provide a channel for the displacement of the movable contact or spark extinguisher.
  • the are chute itself is formed of two parallel panels V 13 and 14 of insulating material resistant to high tem- 3 peratures, these two panels being united at their ends by two walls 15 and 16 having a U-shaped section, of the same insulating material.
  • the panels and walls are secured together either by means of screws and nuts 17 or by. rivets.
  • two supports 20 and 21 and two other supports 22 and 23 of a material resistant to high temperatures are also secured by screws and nuts on the panels 13 and 14 in the higher portion of the arc-cutting chamber,
  • the four supports allow a simple and economical positioning and fastening of the U-shaped plates 12 of magnetic material.
  • the are tips and movable contacts are so arranged that during the operation of the circuit breaker they move relatively inside the channel formed by the lined-up notches 10 and 11 of the plates 12 of magnetic material.
  • constricted channel for are formation and for the displacement of the movable contact allows the cooling of the ionized gases on the walls of said channel and results in an-easy cutting-off of these currents.
  • the screening 24 located at the upper portion of the arc chute aims to reduce largely the outer manifestations which might be feared by a sudden escaping of the ionized gases and thus to decrease the safety distance to be provided above the cutting-off chamber.
  • the are chuterepresented in Figure consists of two shells 30, assembled by two lines of joint 31.
  • the large opposite walls of that are chute comprise grooves 32 for the positioning of the plates.
  • each pair of de-ionization plates consisted of two plane sheets 41 cambered at their edges at 42 so as to touch all along these edges at 43 thus setting up an electrical contact.
  • Each sheet offers the shape of a wide and shallow gutter,
  • Such a pair of plates is represented in perspective in Figure 6 and the upper and outer portion of the plates is coated with an insulating, arc-resistant material; the two sheets 41 also comprise, at their lower portion, a V-shaped recess for the passing of the movable contact of the circuit breaker.
  • camber angle more or less close to one of the sheets 41 may be plane with no camber from one to the other end; one of the sheets or both are cambered only along one edge which gives each plate substantially the shape of a U with a fastening tail-piece in the groove of the arc chute.
  • cross-braces may extend all over the heights of the plates or a portion thereof only, or they may consist of a series of little bars spaced all along the height of the plates. These cross-braces may also be located all on one and the same side of the longitudinal middle plane of the arc chute, or they may be on both sides of that plane when passing. from one plate to the next. As for the plates, they may be secured in a single groove, all the grooves being either on one wall of the arc chute or alternately on one or the other wall when passing from one plate to the next.
  • Figure 8 shows a view, in perspective, of such an example of cross-braced double plates comprising the same minor features as in Figure 6. i
  • the depth of the arc chute leads to too large values of the thicknesses of the gas evacuation spaces, and in order to preserve for these zones a sufficient efiiciency for gas cooling one may, according to the invention, place additional coolers inside these spaces.
  • a cooling plate 46 may be inserted between the two cambered sheets 41 of Figure 5.
  • One may also, and as represented in Figure 10, start from a sheet which is bent twice'parallel to itself so as to constitute, on the one hand, a de-ionization plate and inside it a cooling sheet 47.
  • the present invention also covers the arc extinguishing arc chutes ,for circuit breakers comprising plate stacks such as those described above.
  • a device'for extinguishing an are moving in a determined direction inside of an arch chute comprising three sections in said direction of displacement of the are, a section where the arc is formed and in which relatively movablecontacts with the are tips are located, asection.
  • each pair of de-ionization plates is constituted by a quadrangular sheet of magnetic material bent on itself in the shape of a deep U, the curvature forming the bottom of the U being directed in the direction of the displacement of the arc and extending along at least the entire arc extinction section and the two sides of the U constituting two adjacent plates of the stack.
  • a device for extinguishing an arc according to claim 2 characterized in that the Us are inverted alternately with respect to the middle plane of the stack of plates.
  • each pair of de-ionization plates is constituted by two adjacent plates, at least one of said plates of each pair being cambered on at least one of its edges in the direction of displacement of the arc so as to be connected jointingly and electrically therealong to the other plate of said pair.
  • each pair of de-ionization plates is constituted by two adjacent plates connected with each other by at least one electrically conducting cross brace offset relative the path of displacement of the arc towards the edges of the plates in the arc extinction section.
  • a device for extinguishing an arc according to claim 1 characterized in that the spacing between two adjacent electrically connected plates is greater than the spacing between two adjacent non-connected plates.
  • a device for extinguishing an arc according to claim 1 characterized in that in the passage between two electrically connected plates there is provided a metal sheet in the direction of displacement of the arc for accelerating the cooling of hot gases evacuated through the passage comprised between said plates.
  • a device for extinguishing an arc according to claim 1 characterized in that two are resistant insulating plates are provided defining a constricted channel within which the contacts move relative to each other, said plates being parallel and located inside the chute in the zone of arc formation.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Elimination Of Static Electricity (AREA)
  • Linear Motors (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
US682051A 1956-09-10 1957-09-04 Arc blowing chimneys for circuit breakers having a large breaking capacity Expired - Lifetime US2934629A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1063246X 1956-09-10

Publications (1)

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US2934629A true US2934629A (en) 1960-04-26

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US (1) US2934629A (en(2012))
BE (1) BE560671A (en(2012))
CH (1) CH344465A (en(2012))
DE (1) DE1063246B (en(2012))
FR (2) FR1157951A (en(2012))
GB (1) GB820250A (en(2012))

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031552A (en) * 1959-05-28 1962-04-24 Gen Electric Electric circuit interrupter
US3073936A (en) * 1958-10-01 1963-01-15 Gen Electric Electric circuit interrupter
US3126464A (en) * 1960-06-16 1964-03-24 Stettner
US3440378A (en) * 1966-04-05 1969-04-22 Gen Electric Metal plate type of arc-extinguishing device
US3495056A (en) * 1965-07-22 1970-02-10 Ite Imperial Corp Current limiting interrupter with arc-inserted non-linear resistors
US3632931A (en) * 1970-02-12 1972-01-04 Rostislav Sergeevich Kuznetsov Arc-quenching chamber
US3641294A (en) * 1970-01-08 1972-02-08 Allis Chalmers Mfg Co Arc chute for air circuit breaker
US4143256A (en) * 1977-03-17 1979-03-06 General Electric Company Arc chute having plates coated with weld deterent material
US4609797A (en) * 1983-01-31 1986-09-02 Whipp & Bourne Limited Splitter plate
EP2109130A1 (de) * 2008-04-09 2009-10-14 Abb Ag Lichtbogenlöschblechanordnung für einen elektrischen Schalter
WO2014087203A1 (en) * 2012-12-04 2014-06-12 Larsen & Toubro Limited Arc chute arrangement for arc quenching in electrical switching device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290219B (de) * 1964-09-11 1969-03-06 Siemens Ag Lichtbogenkammer fuer Niederspannungsschaltgeraete
US4405847A (en) * 1980-12-23 1983-09-20 Whipp & Bourme (1975) Limited Arc chutes
CN118098900B (zh) * 2024-04-28 2024-07-23 瑞睿电气(浙江)有限公司 一种交直流断路器灭弧装置

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1840292A (en) * 1928-06-29 1932-01-05 Westinghouse Electric & Mfg Co Electrical contactor
US1888707A (en) * 1928-07-14 1932-11-22 Westinghouse Electric & Mfg Co Circuit interrupter
US1963643A (en) * 1933-02-23 1934-06-19 Westinghouse Electric & Mfg Co Circuit interrupter
US1966316A (en) * 1929-01-10 1934-07-10 Westinghouse Electric & Mfg Co Arc chute
FR846872A (fr) * 1937-12-14 1939-09-27 Hermes Patentverwertungs Gmbh Disjoncteur automatique pour installations intérieures, comportant des pièces ferromagnétiques disposées dans la chambre de coupure
US2353729A (en) * 1941-08-14 1944-07-18 Ite Circuit Breaker Ltd Air blast arc chute
GB618749A (en) * 1946-11-30 1949-02-25 Whipp And Bourne Ltd Improvements in electric circuit breakers having arc extinguishing chambers
US2596865A (en) * 1950-07-03 1952-05-13 Allis Chalmers Mfg Co Arc chute utilizing staggered u-shaped conductive members
US2632074A (en) * 1950-06-29 1953-03-17 Allis Chalmers Mfg Co Arc chute utilizing interleaved u-shaped conductive members
US2639353A (en) * 1950-01-24 1953-05-19 Allis Chalmers Mfg Co Circuit breaker with arc chute short circuiting sections of the arc
US2734970A (en) * 1951-09-28 1956-02-14 Circuit interrupters

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE437530A (en(2012)) * 1939-01-04
US2276859A (en) * 1940-10-29 1942-03-17 Westinghouse Electric & Mfg Co Circuit interrupter
DE767769C (de) * 1942-01-24 1953-05-18 Aeg Funkenkammer aus keramischem Werkstoff
DE885741C (de) * 1944-01-15 1953-08-06 Aeg Lichtbogenkammer fuer elektrische Schaltgeraete
DE957409C (de) * 1953-04-23 1957-01-31 Licentia Gmbh Lichtbogenloeschkammer mit den Lichtbogen maeanderfoermig laengenden Querwaenden

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1840292A (en) * 1928-06-29 1932-01-05 Westinghouse Electric & Mfg Co Electrical contactor
US1888707A (en) * 1928-07-14 1932-11-22 Westinghouse Electric & Mfg Co Circuit interrupter
US1966316A (en) * 1929-01-10 1934-07-10 Westinghouse Electric & Mfg Co Arc chute
US1963643A (en) * 1933-02-23 1934-06-19 Westinghouse Electric & Mfg Co Circuit interrupter
FR846872A (fr) * 1937-12-14 1939-09-27 Hermes Patentverwertungs Gmbh Disjoncteur automatique pour installations intérieures, comportant des pièces ferromagnétiques disposées dans la chambre de coupure
US2353729A (en) * 1941-08-14 1944-07-18 Ite Circuit Breaker Ltd Air blast arc chute
GB618749A (en) * 1946-11-30 1949-02-25 Whipp And Bourne Ltd Improvements in electric circuit breakers having arc extinguishing chambers
US2639353A (en) * 1950-01-24 1953-05-19 Allis Chalmers Mfg Co Circuit breaker with arc chute short circuiting sections of the arc
US2632074A (en) * 1950-06-29 1953-03-17 Allis Chalmers Mfg Co Arc chute utilizing interleaved u-shaped conductive members
US2596865A (en) * 1950-07-03 1952-05-13 Allis Chalmers Mfg Co Arc chute utilizing staggered u-shaped conductive members
US2734970A (en) * 1951-09-28 1956-02-14 Circuit interrupters

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3073936A (en) * 1958-10-01 1963-01-15 Gen Electric Electric circuit interrupter
US3031552A (en) * 1959-05-28 1962-04-24 Gen Electric Electric circuit interrupter
US3126464A (en) * 1960-06-16 1964-03-24 Stettner
US3495056A (en) * 1965-07-22 1970-02-10 Ite Imperial Corp Current limiting interrupter with arc-inserted non-linear resistors
US3440378A (en) * 1966-04-05 1969-04-22 Gen Electric Metal plate type of arc-extinguishing device
US3641294A (en) * 1970-01-08 1972-02-08 Allis Chalmers Mfg Co Arc chute for air circuit breaker
US3632931A (en) * 1970-02-12 1972-01-04 Rostislav Sergeevich Kuznetsov Arc-quenching chamber
US4143256A (en) * 1977-03-17 1979-03-06 General Electric Company Arc chute having plates coated with weld deterent material
US4609797A (en) * 1983-01-31 1986-09-02 Whipp & Bourne Limited Splitter plate
EP2109130A1 (de) * 2008-04-09 2009-10-14 Abb Ag Lichtbogenlöschblechanordnung für einen elektrischen Schalter
WO2014087203A1 (en) * 2012-12-04 2014-06-12 Larsen & Toubro Limited Arc chute arrangement for arc quenching in electrical switching device

Also Published As

Publication number Publication date
GB820250A (en) 1959-09-16
FR71713E (fr) 1960-01-19
FR1157951A (fr) 1958-06-05
CH344465A (fr) 1960-02-15
BE560671A (en(2012))
DE1063246B (de) 1959-08-13

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