EP0217106A2 - Dispositif d'extinction pour disjoncteur de puissance tout courant - Google Patents

Dispositif d'extinction pour disjoncteur de puissance tout courant Download PDF

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Publication number
EP0217106A2
EP0217106A2 EP86111603A EP86111603A EP0217106A2 EP 0217106 A2 EP0217106 A2 EP 0217106A2 EP 86111603 A EP86111603 A EP 86111603A EP 86111603 A EP86111603 A EP 86111603A EP 0217106 A2 EP0217106 A2 EP 0217106A2
Authority
EP
European Patent Office
Prior art keywords
plates
extinguishing
slot
arc
tongues
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
EP86111603A
Other languages
German (de)
English (en)
Other versions
EP0217106A3 (en
EP0217106B1 (fr
Inventor
Werner Dipl.-Ing. Ostermann
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs 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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to AT86111603T priority Critical patent/ATE68629T1/de
Publication of EP0217106A2 publication Critical patent/EP0217106A2/fr
Publication of EP0217106A3 publication Critical patent/EP0217106A3/de
Application granted granted Critical
Publication of EP0217106B1 publication Critical patent/EP0217106B1/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
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
    • 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 invention relates to an extinguishing device for a circuit breaker, in particular an all-current circuit breaker with a stack of a plurality of ferromagnetic quenching plates, spaced apart in a housing chamber, each with a funnel-shaped V-slot forming two protruding tongues on its narrow side facing a contact point are provided, and with two insulating plates arranged transversely in front of the quenching plates, abutting the tongues on both sides of the V-slot on the front and flanking the contact point, at least one of which covers a permanent magnet.
  • the arc voltage must exceed the maximum driving voltage in order to interrupt the circuit.
  • the arcs the longer the burning time the smaller the ratio of the arc voltage to the driving voltage and the greater the time constant T as the ratio of the self-inductance L to the resistance R of the circuit to be protected. Since the number of quenching plates is fixed for a switch or a certain number of quenching plates is required to interrupt the applied voltage, the level of the arc voltage is also approximately fixed, and the first-mentioned ratio can be assumed as a constant value. The second ratio is dependent on the circuit, so that a higher self-inductance causes a correspondingly longer arc burning time in the stack of quenching plates.
  • partial arcing can occur, in particular when the current intensity decreases at the end of the shutdown to the edges of the extinguishing plates and in the direction of the permanent magnet. Burning easily occurs or the arc flashes over several extinguishing plate distances. This case is particularly critical with direct current and leads to the failure of the switch. Furthermore, the arc is only surrounded by a small amount of iron on the narrow tongue ends, so that it remains on the inner contours of the V-slot.
  • An extinguishing device of the type mentioned at the outset is known (DE-OS 33 37 562), in which the extinguishing plates are provided with a gradation in the tongues on each side of the V-slot.
  • the insulating material plate covering a permanent magnet, as a result of which a channel-like depression is formed in front of the contour of the extinguishing plate.
  • the insulating plate also covers the end face of the permanent magnet with an angular extension projecting in the direction of the housing wall.
  • a circuit breaker with an extinguishing device is known (DE-OS 26 16 825), in which at least one of the extinguishing plates is covered with an insulating material and partially covers it. It is thereby achieved that the base point of the arc can only burn on the free area of the quenching plate and the risk of the circuit being short-circuited or bridged by the arc is reduced.
  • This known quenching device in which the arc at the end of the V-slot is to be stabilized by an insulating sheath of the entire stack of quenching plates, preferably lying on the outer quenching plates, is suitable for an AC switch.
  • the partial arcs can combine at the edge contours of the inner quenching plates and short-circuit part of the quenching plates. Such a burning of the arc leads to failure of the switch, especially in the case of direct current.
  • the invention is based, to improve the effectiveness of the above-mentioned quenching device for an all-current circuit breaker in order to obtain a higher DC switching capacity, in particular for direct currents with a high time constant, the task.
  • the extinguishing device shown as a section of a circuit breaker is accommodated in a housing chamber 1 formed from a lower part 1a and an upper part 1b, which is largely filled by a stack of preferably 12 pieces of ferromagnetic extinguishing plates 2 spaced apart from one another.
  • a housing chamber 1 formed from a lower part 1a and an upper part 1b, which is largely filled by a stack of preferably 12 pieces of ferromagnetic extinguishing plates 2 spaced apart from one another.
  • an insulating plate 5 underneath and an insulating plate 6 above are flanking in the area of a contact point formed by a fixed contact piece 3 and a movable contact piece 4.
  • the quenching plates 2 standing next to each other in a packet each have a funnel-shaped V-slot 2a at their narrow end edges facing the contact point, which is approximately in the middle of each quenching plate in one Narrowing 2a 'passes.
  • tongues 2b, 2c remain on both sides of the V-slot, which protrude in the direction of the insulating material plates.
  • the tongues are flush on their outer longitudinal edges 2d with the rest of the fire-extinguishing plate and are therefore in contact with the housing walls of the lower part or upper part with only a slight gap.
  • the extinguishing plates with their rear narrow side 2e rest against a partition wall of the housing chamber 1, in which blow-out openings 1c (not shown in detail) are cut out.
  • Fig. 1 it can also be seen that the end edges of the quenching plates facing the arc chamber are provided with a gradation 2b "and 2c" on both tongues 2b and 2c.
  • a channel-like depression 2a is formed, in particular, between the quenching plate contour below the V-slot and the end face of the lower insulating material plate 5 facing the quenching plates, which protrudes with an angular projection 5a and covers a permanent magnet 9.
  • This thickening consists of a first step 5b, which extends above the opening of the V-slot, in front of the larger part of the quenching plates and a second step 5c, which is higher than this, in the area between the fixed contact piece 3 and the remaining quenching plates.
  • the second stage 5c extends approximately to the middle of the V-slot and lies against the side of an arc discharge horn 3a of the fixed contact piece 3.
  • the resulting switching arc 7 is therefore inevitably raised on its way into the stack of quenching iron with its base point migrating on the arc discharge horn through the second stage 5c up to approximately the central plane of the quenching device.
  • Both steps expediently emerge from the flat area 5d of the insulating material plate 5 with a slope. Since the second stage 5c in the plane of FIG. 2 runs approximately parallel to the arc discharge horn, the first stage 5b widens in a funnel shape towards the quenching plates. This improves the entry of the arc into the quenching plate package.
  • a return potential plate 10 connected to the fixed contact piece 3, which is electrically conductively connected to an input terminal 11 in a manner not shown, and an arc guide plate 12 located at the bottom of the housing chamber.
  • This in parallel Arc guiding plate extending to an outer extinguishing plate is guided in the area of the arc space in the direction of the movable contact piece 4 for good takeover of its arc base and carries a bimetal 13 as a thermal trigger at its free end 12a. This is via a connection line 15 with a connecting terminal 14 and a flexible line 16 connected to the movable contact piece 4 in series.
  • the direction of flow of the direct current is indicated by arrows in FIG. 2 and leads from the connection terminal 11 to the fixed contact piece 3 and further via the movable contact piece 4, the line 16, the bimetal 13 and the line 15 to the other connection terminal 14.
  • a direct current flows through the switching arc 7, which under the effect of the magnetic field of the permanent magnet 9 shown schematically in FIG. 1, effectively flows into the V-slot even at currents above approximately 30 A via the steps of the lower insulating plate 5 2a of the sheet stack is directed.
  • the latter can enter the narrowing 2a 'of the V-slot in the critical current range from approximately 30 to 100 A via indicated intermediate positions 7a, 7b, 7c.
  • This process is further supported by the larger air gap to the magnet due to the lower insulating material plate thickened in front of the extinguishing plates.
  • the quenching device according to the invention also allows a higher AC cut-off capacity. This is achieved insofar as the demagnetization of the permanent magnet 9 takes place in the region important for direct current cutoffs due to the step-like thickening of the lower insulating material plate 5 when the current flows in the opposite direction.
  • the arc barriers can also be provided by means of appropriate housing webs which grip between the quenching plates or by local insulation directly on the surface of the quenching plates in the zones in which the teeth 8a grip over the tongues 2b or 2c. Adhesive strips, lacquer or corresponding materials can be used for this local insulation.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)
  • Keying Circuit Devices (AREA)
EP86111603A 1985-08-30 1986-08-22 Dispositif d'extinction pour disjoncteur de puissance tout courant Expired - Lifetime EP0217106B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86111603T ATE68629T1 (de) 1985-08-30 1986-08-22 Loescheinrichtung fuer einen allstromleitungsschutzschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3531040 1985-08-30
DE3531040A DE3531040C1 (de) 1985-08-30 1985-08-30 Loescheinrichtung fuer einen Allstrom-Leitungsschutzschalter

Publications (3)

Publication Number Publication Date
EP0217106A2 true EP0217106A2 (fr) 1987-04-08
EP0217106A3 EP0217106A3 (en) 1989-06-28
EP0217106B1 EP0217106B1 (fr) 1991-10-16

Family

ID=6279774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86111603A Expired - Lifetime EP0217106B1 (fr) 1985-08-30 1986-08-22 Dispositif d'extinction pour disjoncteur de puissance tout courant

Country Status (3)

Country Link
EP (1) EP0217106B1 (fr)
AT (1) ATE68629T1 (fr)
DE (2) DE3531040C1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3803849C1 (en) * 1988-02-09 1989-08-10 Flohr, Peter, Dipl.-Ing., 7790 Messkirch, De High-power switching path for protective switching devices
DE3824025A1 (de) * 1988-07-15 1990-01-18 Asea Brown Boveri Niederspannungsschaltgeraet
EP0288040A3 (en) * 1987-04-21 1990-06-13 Mitsubishi Denki Kabushiki Kaisha Circuit breaker
EP0586724A1 (fr) * 1992-09-07 1994-03-16 Siemens Aktiengesellschaft Disjoncteur automatique, par exemple disjoncteur de protection de ligne
DE29620519U1 (de) * 1996-11-25 1997-02-06 Heinrich Kopp Ag, 63796 Kahl Kontaktanordnung für Fehlerstromschutzschalter
WO1999033080A1 (fr) * 1997-12-22 1999-07-01 Siemens Aktiengesellschaft Dispositif extincteur d'arc destine a un appareillage de connexion
FR2873511A1 (fr) * 2004-07-21 2006-01-27 Soule Prot Surtensions Sa Dispositif de protection contre les surtensions, les surcharges ou les courts-circuits a pouvoir de coupure ameliore
FR2923649A1 (fr) * 2007-11-13 2009-05-15 Schneider Electric Ind Sas Chambre de coupure et disjoncteur equipe d'une telle chambre de coupure.
EP1995747A3 (fr) * 2007-05-22 2010-03-03 Schneider Electric Industries SAS Chambre de coupure et disjoncteur équipé d'une telle chambre de coupure
US7915985B2 (en) 2007-11-17 2011-03-29 Eaton Industries Gmbh Switching device for direct-current applications
EP3389070A1 (fr) * 2017-04-13 2018-10-17 ABB Schweiz AG Chambre d'arc pour un disjoncteur à courant continu
CN114582665A (zh) * 2022-01-29 2022-06-03 上海京硅智能技术有限公司 隔离开关触头极

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI87614C (fi) * 1991-05-06 1993-01-25 Abb Stroemberg Saehkoenjakelu Slaeckningsanordning foer ljusbaoge foer en kopplingsapparatur
DE102004022194B4 (de) * 2004-05-05 2013-01-03 Abb Ag Lichtbogenlöscheinrichtung für einen Leitungsschutzschalter
DE102005007282A1 (de) * 2005-02-17 2006-08-24 Abb Patent Gmbh Elektrisches Installationsgerät mit Lichtbogen-Vorkammerraum, Vorkammerplatten und strombegrenzender Lichtbogenlöscheinrichtung
DE102007054960B3 (de) 2007-11-17 2009-04-23 Moeller Gmbh Schaltgerät für Gleichstrom-Anwendungen
CN117831976B (zh) * 2023-05-26 2024-06-07 浙江金莱勒电气股份有限公司 一种dc1500v灭弧系统的生产工艺

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2147419A (en) * 1935-06-19 1939-02-14 Westinghouse Electric & Mfg Co Circuit interrupter
DE1203346B (de) * 1963-06-24 1965-10-21 Licentia Gmbh Loeschblechanordnung fuer elektrische Schaltgeraete
DE1885241U (de) * 1963-06-28 1964-01-02 Licentia Gmbh Loeschblechanordnung fuer selbstschalter.
DE1926355B1 (de) * 1969-05-23 1970-11-12 Siemens Ag Lichtbogenl¦schkammer für Niederspannungsleistungsschalter
DE2133926A1 (de) * 1971-07-07 1973-01-18 Allis Chalmers Mfg Co Funkenkammer fuer luft-leistungsschalter
DE2616825C3 (de) * 1976-04-15 1981-07-02 Brown, Boveri & Cie Ag, 6800 Mannheim Leitungsschutzschalter
US4405847A (en) * 1980-12-23 1983-09-20 Whipp & Bourme (1975) Limited Arc chutes
EP0138174B1 (fr) * 1983-10-15 1987-09-16 Licentia Patent-Verwaltungs-GmbH Dispositif d'extinction pour un interrupteur automatique
DE3337562A1 (de) * 1983-10-15 1985-04-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Loescheinrichtung fuer einen leitungsschutzschalter

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288040A3 (en) * 1987-04-21 1990-06-13 Mitsubishi Denki Kabushiki Kaisha Circuit breaker
DE3803849C1 (en) * 1988-02-09 1989-08-10 Flohr, Peter, Dipl.-Ing., 7790 Messkirch, De High-power switching path for protective switching devices
DE3824025A1 (de) * 1988-07-15 1990-01-18 Asea Brown Boveri Niederspannungsschaltgeraet
EP0586724A1 (fr) * 1992-09-07 1994-03-16 Siemens Aktiengesellschaft Disjoncteur automatique, par exemple disjoncteur de protection de ligne
DE29620519U1 (de) * 1996-11-25 1997-02-06 Heinrich Kopp Ag, 63796 Kahl Kontaktanordnung für Fehlerstromschutzschalter
WO1999033080A1 (fr) * 1997-12-22 1999-07-01 Siemens Aktiengesellschaft Dispositif extincteur d'arc destine a un appareillage de connexion
US6288354B1 (en) 1997-12-22 2001-09-11 Siemens Aktiengesellschaft Switching device with an arc extinguishing device
FR2873511A1 (fr) * 2004-07-21 2006-01-27 Soule Prot Surtensions Sa Dispositif de protection contre les surtensions, les surcharges ou les courts-circuits a pouvoir de coupure ameliore
WO2006018513A3 (fr) * 2004-07-21 2006-04-20 Soule Protection Surtensions Dispositif d ' extinction d ' arcs electriques pour, en particulier, un dispositif de protection contre les surtensions
WO2006018515A3 (fr) * 2004-07-21 2006-05-04 Soule Protection Surtensions Dispositif d'extinction d'arcs electriques pour, en particulier, un dispositif de protection contre les surtentions
US7466528B2 (en) 2004-07-21 2008-12-16 Abb France Overload and short-circuit protection device with a breaker ribbon
EP1995747A3 (fr) * 2007-05-22 2010-03-03 Schneider Electric Industries SAS Chambre de coupure et disjoncteur équipé d'une telle chambre de coupure
CN101436495A (zh) * 2007-11-13 2009-05-20 施耐德电器工业公司 电弧隔板和带有这种电弧隔板的断路器
EP2061051A1 (fr) * 2007-11-13 2009-05-20 Schneider Electric Industries SAS Chambre de coupure et disjoncteur équipé d'une telle chambre de coupure
FR2923649A1 (fr) * 2007-11-13 2009-05-15 Schneider Electric Ind Sas Chambre de coupure et disjoncteur equipe d'une telle chambre de coupure.
US8519292B2 (en) 2007-11-13 2013-08-27 Schneider Electric Industries Sas Arc chute and circuit breaker equipped with one such arc chute
CN101436495B (zh) * 2007-11-13 2013-08-28 施耐德电器工业公司 电弧隔板和带有这种电弧隔板的断路器
US7915985B2 (en) 2007-11-17 2011-03-29 Eaton Industries Gmbh Switching device for direct-current applications
EP2383761A1 (fr) 2007-11-17 2011-11-02 Eaton Industries GmbH Commutateur destiné à des applications à courant continu
EP3389070A1 (fr) * 2017-04-13 2018-10-17 ABB Schweiz AG Chambre d'arc pour un disjoncteur à courant continu
WO2018189373A1 (fr) * 2017-04-13 2018-10-18 Abb Schweiz Ag Chambre à arc pour disjoncteur à courant continu
US11195673B2 (en) 2017-04-13 2021-12-07 Abb Schweiz Ag Arc chamber for a DC circuit breaker
CN114582665A (zh) * 2022-01-29 2022-06-03 上海京硅智能技术有限公司 隔离开关触头极
CN114582665B (zh) * 2022-01-29 2024-03-12 上海京硅智能技术有限公司 隔离开关触头极

Also Published As

Publication number Publication date
ATE68629T1 (de) 1991-11-15
DE3682012D1 (de) 1991-11-21
DE3531040C1 (de) 1987-06-04
EP0217106A3 (en) 1989-06-28
EP0217106B1 (fr) 1991-10-16

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