EP4210080A1 - Kaminplatte zum zerkleinern und löschen von bogen und kamin mit einer solchen platte - Google Patents

Kaminplatte zum zerkleinern und löschen von bogen und kamin mit einer solchen platte Download PDF

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Publication number
EP4210080A1
EP4210080A1 EP23150779.9A EP23150779A EP4210080A1 EP 4210080 A1 EP4210080 A1 EP 4210080A1 EP 23150779 A EP23150779 A EP 23150779A EP 4210080 A1 EP4210080 A1 EP 4210080A1
Authority
EP
European Patent Office
Prior art keywords
plate
plates
chimney
projections
delimiting
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.)
Pending
Application number
EP23150779.9A
Other languages
English (en)
French (fr)
Inventor
Nicolas Quentin
Aurel Gavid
Jean-Pierre Vernier
John Garcia
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.)
Alstom Holdings SA
Original Assignee
Alstom Holdings 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 Alstom Holdings SA filed Critical Alstom Holdings SA
Publication of EP4210080A1 publication Critical patent/EP4210080A1/de
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc
    • 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
    • H01H9/342—Venting arrangements for arc chutes
    • 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

  • the present invention relates to a chimney plate for fragmentation and arc extinction of a direct current circuit breaker with air breaking, of the type delimiting at its center a central aperture with a closed contour, the plate comprising on at least a face of the projections delimiting between them radial channels connecting, along the surface of the plate, the light to the periphery of the plate, characterized in that it comprises means for modifying the state of opening of at least one channel between two adjacent projections. It further relates to a fireplace and a direct current circuit breaker.
  • the fireplace is made up of plates arranged on top of each other. These plates delimit between them radial ducts allowing an escape of the gases produced and of the heat all along the length of the flue.
  • the chimney has a relatively large size and the circuit breaker is therefore a bulky object, in particular in a railway vehicle.
  • the object of the invention is to make it possible to limit the size of the chimney and therefore of the circuit breaker while allowing satisfactory extinction of the arc.
  • the subject of the invention is an arc splitting and extinguishing chimney plate of a direct current circuit breaker of the aforementioned type, characterized in that it comprises means for modifying the state of opening of at least one channel between two adjacent projections.
  • the invention also relates to a stack for splitting and extinguishing an arc of a direct current circuit breaker comprising a stack of plates as described above with alignment along the same axis of the central slots of the plates to delimit a conduit fireplace, the channels of a plate delimiting, with the adjacent plate resting on the projections, radial evacuation ducts opening outwards via outlet vents.
  • the subject of the invention is a direct current circuit breaker comprising a chimney as defined above and a switch arranged in the extension of the flue of the chimney.
  • Circuit breaker 10 shown in figure 1 is intended to be installed on board a railway vehicle.
  • connection terminals 12 and 14 One is able to be connected to a direct current source such as a pantograph connected to the power supply network.
  • the other terminal is intended to be connected to loads such as the vehicle drive motors.
  • Circuit breaker 10 comprises a body 16 in which is arranged a switch 18, one of whose contacts, which is movable, 20 is connected to terminal 16 and whose other fixed contact 22 is connected to terminal 12.
  • the moving contact 20 is secured to the terminal 14 by a conductive braid 24.
  • An actuator 26 is arranged in the body 16 to ensure movement of the moving contact 20 between a position spaced from the fixed contact 22 as illustrated on the figure 1 and a position in contact with the fixed contact 22 allowing the flow of electric current between the terminals 12 and 14.
  • the body 16 is surmounted to the right of the contacts 20, 22 by a chimney 30 for fragmentation and extinction of the electric arc formed between the two terminals 20, 22 when the switch 18 is opened.
  • the chimney 30 has a parallelepipedic outer shape. It has in its center an axial flue 32 whose axis is aligned with the contacts 20, 22. The flue is closed off opposite the contacts 20, 22 by a cover 34.
  • the chimney is formed from a stack of individual plates 36, an example of which is shown in figure 2 And 3 in two distinct configurations.
  • radial ducts 38 connecting the flue 32 to the outside. These ducts open through vents 39 for releasing the gases and the heat produced by the arc into the external environment.
  • All the plates forming the chimney 30 are initially, before assembly and configuration, identical to that denoted 36A of the picture 2 .
  • These plates are rectangular in shape and have in their center a through oblong slot 40 delimiting the flue. This oblong lumen is centered in the plate and has its major axis coincident with the major axis of the rectangular plate.
  • the plate On only one of its faces, the plate has projections 42, 10 in number on the picture 2 .
  • the projections form flat bearing surfaces on their upper part for the support of the immediately superimposed plate. Some projections are traversed by a hole passing through the plate right through. These holes allow the reception of screws of securing the plates together, these screws extending over the entire height of the chimney.
  • the projections are each adjacent to the periphery of the plate and they delimit between them with the flat part of the plate channels 44 connecting the light 40 and the periphery of the plate where the openings 39 are formed. These channels 44, when they are covered with a plate resting on the projections 42, delimit the ducts 38 visible on the figure 1 .
  • the protrusions are distributed by five on the longest sides of the plates.
  • the median projections comprise on the edge of the plate along its thickness slideways 46 in the form of dovetails capable of receiving screens, as will be described later.
  • the central light 40 has, in its middle part, on each side, a local enlargement 47 at the level of the median channels denoted 48. These enlargements 47 locally increase the cross section of the flue.
  • the median channels 48 are, when the plates are produced, each closed by a frangible wall 50 extending between the two adjacent projections 42.
  • the wall 50 extends over the entire thickness of the plate, thus ensuring complete obstruction of the channel.
  • the wall is formed on the edge of the opening 40 delimiting the flue.
  • These walls are frangible, that is to say they can be broken manually or with a suitable tool to allow opening of the channel 48 initially closed by the wall 50.
  • a free passage, designated by 60 on the picture 3 is then formed at the location of the wall 50 which has been broken on the plate designated by the reference 36B.
  • the plate Behind the walls 50, in the middle position along the length of the middle channels 48, the plate has transverse slots 52 extending over the entire width of the duct from one projection 42 to the opposite projection.
  • the plates are stacked on top of each other with alignment of lights 40 in the extension of switch 18.
  • metal blades 62 are carried by each plate on supports 64 halfway up the projections 42 visible on a larger scale on the figure 2 . These metal blades protrude partially into the flue 32.
  • the lower plates close to the switch 18 are advantageously identical to those 36A of the figure 2 and have a channel blocking wall 50 medians as seen on the figure 4 , thus blocking the radial conduits 38 corresponding.
  • the plates denoted 36B are identical to those appearing on the picture 3 and have a free passage 60 at the location of the walls 50, the latter having been broken to allow the circulation of gases through the duct arranged behind between the two projections 42.
  • a shutter 80 as illustrated more clearly in the figure 5 is arranged in the slots 52, thus making it possible to close off the corresponding ducts 38 in their middle part while making it possible to increase the open section of the chimney duct for guiding the arc.
  • the notches 46 receive screens 47, these screens 87 being formed of a particularly rectangular plate bearing on one of the sides a complementary profile 88 to the profile of the groove 46, thus allowing their introduction by sliding and their retention.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP23150779.9A 2022-01-10 2023-01-09 Kaminplatte zum zerkleinern und löschen von bogen und kamin mit einer solchen platte Pending EP4210080A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2200157A FR3131798B1 (fr) 2022-01-10 2022-01-10 Plaque de cheminée de fragmentation et d’extinction d’arc et cheminée la comportant

Publications (1)

Publication Number Publication Date
EP4210080A1 true EP4210080A1 (de) 2023-07-12

Family

ID=82020152

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23150779.9A Pending EP4210080A1 (de) 2022-01-10 2023-01-09 Kaminplatte zum zerkleinern und löschen von bogen und kamin mit einer solchen platte

Country Status (2)

Country Link
EP (1) EP4210080A1 (de)
FR (1) FR3131798B1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1876618A1 (de) * 2006-07-07 2008-01-09 Sécheron SA Anpassbare Lichtbogenlöschkammer für Leistungsschalter
EP2936535B1 (de) * 2012-12-18 2017-02-01 Schneider Electric Industries SAS Modulare elektrische schaltvorrichtung mit mindestens einer einpoligen absperreinheit und schalteranordnung mit solchen vorrichtungen
WO2020241397A1 (ja) * 2019-05-28 2020-12-03 三菱電機株式会社 直流遮断器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1876618A1 (de) * 2006-07-07 2008-01-09 Sécheron SA Anpassbare Lichtbogenlöschkammer für Leistungsschalter
EP2936535B1 (de) * 2012-12-18 2017-02-01 Schneider Electric Industries SAS Modulare elektrische schaltvorrichtung mit mindestens einer einpoligen absperreinheit und schalteranordnung mit solchen vorrichtungen
WO2020241397A1 (ja) * 2019-05-28 2020-12-03 三菱電機株式会社 直流遮断器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "DCBreak Rolling Stock High Speed Direct Current circuit breaker", 1 January 2019 (2019-01-01), pages 1 - 32, XP055954331, Retrieved from the Internet <URL:https://www.manualslib.com/download/1612264/Abb-Dcbreak-Series.html> [retrieved on 20220824] *

Also Published As

Publication number Publication date
FR3131798A1 (fr) 2023-07-14
FR3131798B1 (fr) 2024-08-02

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