EP0614208A2 - Dispositif d'extinction d'arc, en particulier pour un disjoncteur de protection de ligne ou des contacteurs - Google Patents

Dispositif d'extinction d'arc, en particulier pour un disjoncteur de protection de ligne ou des contacteurs Download PDF

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Publication number
EP0614208A2
EP0614208A2 EP94102534A EP94102534A EP0614208A2 EP 0614208 A2 EP0614208 A2 EP 0614208A2 EP 94102534 A EP94102534 A EP 94102534A EP 94102534 A EP94102534 A EP 94102534A EP 0614208 A2 EP0614208 A2 EP 0614208A2
Authority
EP
European Patent Office
Prior art keywords
arc
contact
quenching
contact lever
lever
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.)
Granted
Application number
EP94102534A
Other languages
German (de)
English (en)
Other versions
EP0614208B1 (fr
EP0614208A3 (fr
Inventor
Klaus-Peter Eppe
Peter Huber
Richard Kommert
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.)
ABB Patent GmbH
Original Assignee
ABB Patent GmbH
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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0614208A2 publication Critical patent/EP0614208A2/fr
Publication of EP0614208A3 publication Critical patent/EP0614208A3/fr
Application granted granted Critical
Publication of EP0614208B1 publication Critical patent/EP0614208B1/fr
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
    • H01H9/346—Details concerning the arc formation chamber

Definitions

  • the invention relates to an arc extinguishing arrangement for an electrical switching device, in particular for a circuit breaker and contactor according to the preamble of claim 1.
  • Arc extinguishing arrangements have become known, in particular in the case of circuit breakers, in which an arc drawn between a movable and a fixed contact piece is extinguished when the circuit is switched off.
  • the contact pieces are each assigned an arc guide rail, to which the respective base points of the arc arrive and which guide the arc into an arc-quenching plate packet in which the arc is extinguished.
  • the space in front of the arc quenching plate package, which is referred to as the prechamber, is covered on both sides with plates made of insulating material to direct the arc.
  • the movement of the arc is caused by the assignment of the contact pieces and the current paths to one another, through which an electric field is generated, which drives the arc into the arc chamber; the dynamics and the pressure conditions generated by the arc as well as the shape of the guide rails and the assignment of the prechamber to the arc extinguishing plates are also important.
  • suction plates can also be used to accelerate the arc in the direction of the arc quenching plate package.
  • the object of the invention is to provide an arc extinguishing arrangement of the type mentioned in the introduction, in which the movement of the arc into the arc extinguishing sheet packet is accelerated even further, particularly at the start of the switching operation.
  • the barrier web which is located in front of the arc extinguishing arrangement, acts like a type of pressure repulsion web, with which the arc is steered out of the contact point at a very high speed in the direction of the arc extinguishing sheet package. Due to the barrier, the arc running speed is significantly increased, which also this is due to the fact that the gases generated by the arc cannot flow out to the front, i.e. against the direction of travel.
  • the locking plate or the locking web is preferably oriented such that it extends approximately perpendicular to the contact lever when it is in the switched-on position.
  • the arc extinguishing arrangement according to FIG. 1 has a pivotable contact lever 10, at the free end of which a movable contact piece 11 is fastened, whereas the other free end is rotatably supported on an axis (not shown in detail), so that the contact lever is turned counterclockwise during a switching operation ( pivoted in the drawing).
  • the movable contact interacts with a fixed contact 12 which is fastened to a power supply path 13 which is bent in a U-shape, forming one leg, whereas the other leg 14 runs parallel to arc-extinguishing plates 15.
  • the section that forms the base of the U-shape and connects the two legs 13 and 14 to one another, serves together with the leg 14 as an arc guide rail.
  • a leg 18 of a second arc guide rail which is bent in an L-shape and the other leg 19 of which runs parallel to the leg 14 and parallel to the arc-extinguishing plates 15, so that the arc-extinguishing plates 15 are received between the two legs 14 and 19 are.
  • the leg 17 of the arc guide rail 18 has a cutout 20 in which the contact lever 10 extends through the leg 17 and in which it can also be moved.
  • FIG. 2 shows a variant of the embodiment according to FIG. 1.
  • the locking plate 21 and the contact lever 10 with the movable contact piece 11 can be seen.
  • the stationary, fixed contact 12 is fastened to a current-conducting guide rail 25, which forms a first leg 26, which together with a second leg 27, which extends perpendicular to the first leg 26, forms an L-shape.
  • the arc quenching plates 15 are located parallel to the second leg 27 and a straight arc guiding rail 28 runs parallel to the arc quenching plates and runs approximately perpendicular to the contact lever 10 and parallel to the locking plate 21.
  • the contact lever 10 passes through the guide rail 28 in the same way as the contact lever 10 the leg 17.
  • the recess 20 is also present here, but not shown for reasons of simplification.
  • FIG. 3 shows a further embodiment in which the arc extinguishing plates 15 again run parallel to the contact lever 10, although the contact lever in the switched-on position limits the arc extinguishing plates 15 on one side.
  • the movable contact piece 11 interacts with the fixed contact piece 12, which is fastened to a power supply rail 30 which forms a leg 32 of a Z-shaped arc guide rail 31.
  • the other leg 33 is connected to the leg 32 via a connecting web 34 connected to the leg 32 and extending at an obtuse angle alpha.
  • the arc running direction is also Z-shaped.
  • a contact carrier rail 40 is arranged parallel to the contact lever 10 with the movable contact piece 11, to which the fixed contact piece 12 is fastened.
  • the rail 40 is removed from the contact lever by the thickness of the two contact pieces 11 and 12, and there are no arc-quenching plates between the contact lever and the rail 40.
  • the locking plate 21 is located in front of the contact pieces 11 and 12 in the same way as in the other embodiments.
  • the one arc base point runs from the fixed contact piece on the arc guide rail 13, 16, 14; 26, 27; 31, 32, 33; 40 towards an extinguishing device, whereas the other base point first runs on the contact lever 10 before it commutates on the guide rail 18 or 28 in the embodiments according to FIGS. 1 and 2.
  • the base point remains on the contact lever 10 and arrives with the contact lever 10 as an arc guide rail to the quenching plates 15 (FIG. 3) or to another quenching device which is not shown in FIG. 4.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Arc Welding In General (AREA)
EP94102534A 1993-02-27 1994-02-19 Dispositif d'extinction d'arc, en particulier pour un disjoncteur de protection de ligne ou des contacteurs Expired - Lifetime EP0614208B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4306226 1993-02-27
DE4306226A DE4306226A1 (de) 1993-02-27 1993-02-27 Lichtbogenlöschanordnung, insbesondere für einen Leitungsschutzschalter und Schütze

Publications (3)

Publication Number Publication Date
EP0614208A2 true EP0614208A2 (fr) 1994-09-07
EP0614208A3 EP0614208A3 (fr) 1995-07-26
EP0614208B1 EP0614208B1 (fr) 1997-04-23

Family

ID=6481581

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94102534A Expired - Lifetime EP0614208B1 (fr) 1993-02-27 1994-02-19 Dispositif d'extinction d'arc, en particulier pour un disjoncteur de protection de ligne ou des contacteurs

Country Status (3)

Country Link
EP (1) EP0614208B1 (fr)
AT (1) ATE152284T1 (fr)
DE (2) DE4306226A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1041616C (zh) * 1994-03-11 1999-01-13 中国石油化工总公司 β沸石合成方法(二)
SG87135A1 (en) * 1999-07-29 2002-03-19 Abb Patent Gmbh Arc splitter stack for an electric switching device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108447749B (zh) * 2018-04-04 2023-09-12 上海电科电器科技有限公司 引弧与跑弧结构

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021054B (de) * 1954-05-11 1957-12-19 Siemens Ag Schaltkammer fuer elektrische Schaltgeraete
DE1040647B (de) * 1955-09-22 1958-10-09 Siemens Ag Schaltkammer fuer elektrische Schaltgeraete
DE1194489B (de) * 1960-12-07 1965-06-10 Licentia Gmbh Selbstschalter in Schmalbauform mit strom-abhaengigen Ausloesevorrichtungen und Mitteln zur Lichtbogenloeschung
DE1926693A1 (de) * 1969-05-24 1970-11-26 Siemens Ag Lichtbogenloeschkammer fuer Niederspannungsleistungsschalter
DE7027838U (de) * 1970-07-24 1971-12-23 Siemens Ag Schaltgeraet mit einer schaltkammer.
SU488264A1 (ru) * 1973-02-20 1975-10-15 Предприятие П/Я А-7374 Дугогасительна система контактора
SU729671A1 (ru) * 1978-03-20 1980-04-25 Северо-Западный Заочный Политехнический Институт Дугогасительное устройство
DE2816352C2 (de) * 1978-04-12 1982-12-16 Siemens AG, 1000 Berlin und 8000 München Niederspannungs-Leistungsschalter mit Lichtbogenraum und Schaltmechanismus
SU945913A1 (ru) * 1980-06-09 1982-07-23 Ленинградское Электромашиностроительное Объединение "Электросила" Им.С.М.Кирова Устройство дл определени скорости и времени образовани опорных п тен электрической дуги на электроде
DE3443121A1 (de) * 1984-11-27 1986-05-28 Brown, Boveri & Cie Ag, 6800 Mannheim Elektrischer leitungsschutzschalter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1041616C (zh) * 1994-03-11 1999-01-13 中国石油化工总公司 β沸石合成方法(二)
SG87135A1 (en) * 1999-07-29 2002-03-19 Abb Patent Gmbh Arc splitter stack for an electric switching device

Also Published As

Publication number Publication date
EP0614208B1 (fr) 1997-04-23
DE4306226A1 (de) 1994-09-01
DE59402471D1 (de) 1997-05-28
ATE152284T1 (de) 1997-05-15
EP0614208A3 (fr) 1995-07-26

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