EP2648199A2 - Installation d'extinction d'arc lumineux et commutateur d'installation avec une installation d'extinction d'arc lumineux - Google Patents

Installation d'extinction d'arc lumineux et commutateur d'installation avec une installation d'extinction d'arc lumineux Download PDF

Info

Publication number
EP2648199A2
EP2648199A2 EP12004401.1A EP12004401A EP2648199A2 EP 2648199 A2 EP2648199 A2 EP 2648199A2 EP 12004401 A EP12004401 A EP 12004401A EP 2648199 A2 EP2648199 A2 EP 2648199A2
Authority
EP
European Patent Office
Prior art keywords
arc
inlet
quenching
plates
arc quenching
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.)
Withdrawn
Application number
EP12004401.1A
Other languages
German (de)
English (en)
Other versions
EP2648199A3 (fr
Inventor
Thomas Wulf
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 Schweiz AG
Original Assignee
ABB Schweiz AG
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 Schweiz AG filed Critical ABB Schweiz AG
Priority to CN2013101191529A priority Critical patent/CN103366989A/zh
Publication of EP2648199A2 publication Critical patent/EP2648199A2/fr
Publication of EP2648199A3 publication Critical patent/EP2648199A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • H01H9/36—Metal parts
    • H01H9/362—Mounting of plates in arc chamber
    • 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
    • H01H2009/365—Metal parts using U-shaped plates
    • 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
    • H01H9/345—Mounting of arc chutes

Definitions

  • the invention relates to an arc quenching device for an electrical service switching device, wherein the service switching device comprises a contact point formed from a fixed and a movable contact on which an arc is generated in an elimination, and wherein the arc quenching device comprises a plurality of arc extinguishing panels exhibiting arc splitter stack in which the arc enters and is extinguished therein, the arc quenching plates being arranged in a stack parallel to each other and held spaced apart by a holding device, each arc quenching plate having two longitudinal side edges extending symmetrically to a longitudinal center axis and having an inlet region in which, starting from an inlet narrow side edge, an in Arcing direction extending and the arc entry point open inlet opening between two inlet legs is formed, according to the Ob Concept of Claim 1.
  • the invention further relates to an installation switching device, in particular a circuit breaker or a circuit breaker, with a fixed and a movable contact piece, which together form a contact point, and with an arc extinguishing device for extinguishing an arc occurring at the contact point, according to the preamble of claim 10.
  • Fire extinguishers are used in circuit breakers to extinguish electric arcs. These can be used in single-chamber systems and two-chamber systems.
  • the quenching plates have a V-shaped cutout and are in the same direction arranged. An arc is decomposed in the quenching chamber into many partial arcs and finally extinguished.
  • a generic arc quenching device is housed in a circuit breaker, a circuit breaker, but also for example in a motor protection switch.
  • the arc splitter stack is composed of several arc quenching plates, which are identical in the known state of the art with respect to the outer shape and dimensions.
  • the sheets have a symmetrical, V - shaped inlet contour, which is open towards the arc - generating point.
  • DE 10 2008 021 138 A1 shows a generic arc quenching device for an electrical switch, with mutually parallel quenching plates, which are held by means of a holding device formed by a cuboid box of insulating material at a distance from each other.
  • the maximum number of splitter plates is determined by the installation height, whereby the splitter plate thickness and the distance between the plates has an influence. Since the installation height and the maximum number of splitter plate is responsible for the size of the resulting arc voltage and thus for the possible limitation of the short-circuit current at the inlet of the arc in the quenching chamber, it is endeavored to accommodate as many arc quenching in an arc extinguishing chamber, which in practice a minimum Sheet thickness due to the thermal Strength and a minimum distance of the plates with each other can not be fallen below and falls below the minimum possible sheet thickness or the minimum possible distance values does not lead to increase the arc voltage. Thus, the maximum achievable arc voltage and thus the maximum possible short-circuit current limit are determined geometrically for physical reasons for a certain installation height.
  • the object is achieved by an arc quenching device with the features of claim 1, as well as by a service switching device with the features of claim 10 ..
  • the inlet cut-out narrows in a funnel shape and asymmetrically in the arc running direction with respect to the longitudinal center axis, and the arc quenching plates are alternately mirrored one above the other at their longitudinal central axis, so that each arc quenching plate with one of its inlet legs respectively views the inlet section of the adjacent arc quenching plates in the stacking direction partially covered .
  • the quenching plates according to the invention therefore arranged alternately mirrored. This leads to an additional extension of the partial arcs in the division case and results in a generally faster rising and higher arc voltage. As a result, rapid and safe extinguishing of the arc can be ensured, especially in DC applications. A rapidly increasing and overall high arc voltage protects the circuit breaker especially in a DC application from overload and damage.
  • each arc quenching plate has a rectangular basic configuration, wherein a first inlet leg with a first, the inlet cutout on one side limiting inlet edge and a second inlet leg with a second, the inlet cutout on one side limiting inlet edge are formed and wherein the inlet cutout located at its in arc inlet direction End merges into a basic region connecting the two inlet limbs, so that the width of the first inlet limb at the base region is greater than the width of the second inlet limb at the base region, and wherein in the stacking direction on each side of the stack center plane defined by the longitudinal central axes of the stacked release plates an alternating sequence of first and second inlet legs arise.
  • the quenching plate stack according to the invention to a certain extent constructed from an alternating sequence of first and second quenching plates.
  • the first quenching plates are those quenching plates which are arranged so that their first inlet legs lie one above the other in the stacking direction and on a first side of the stacking center plane defined by the longitudinal central axes of the stacked quenching plates.
  • the second quenching plates are those quenching plates which are arranged so that their first inlet legs lie one above the other in the stacking direction and on a second side of the stack central plane defined by the longitudinal central axes of the stacked quenching plates, the second side lying opposite the first side.
  • the structure of the quenching plate stack according to the invention can furthermore be imagined such that the first quenching plates form a first part quenching plate stack and the second quenching plates form a second part quenching plate stack, and that the first and second quenching plate stacks have been joined together.
  • the first and second quenching plates are constructed identically, they differ only in that a second quenching plate emerges from a first quenching plate by mirroring on its longitudinal central axis.
  • this inventive arc splitter arrangement can be explained as follows. When it enters the inlet opening, the arc first strikes the first inlet edges and enters the area between the first inlet legs.
  • the distance between the first inlet legs is greater than the distance between the quenching plates in the rear view in the arc running direction Area of the quenching plates, therefore, the shrinkage of the arc takes place in the area between the first inlet legs faster than would be done if the inlet legs all the same, smaller distance would have, as is common in the prior art. Due to the greater distance between the first inlet legs in the region of the first inlet edges and the flow resistance before the arc is lower thereby increasing the inlet velocity.
  • the inlet cut-out has an asymmetrical V-shape with straight inlet edges relative to the longitudinal central axis.
  • the arc quenching plates on their longitudinal sides projecting pins, with which they pass through holding holes in the holding device.
  • the quenching plates are made of a ferromagnetic material and are covered with a copper layer.
  • the base material for the quenching plates while ferromagnetic materials are used since the magnetic field which accompanies the arc, in the vicinity of a ferromagnetic material tends to pass through the magnetic better conducting quenching plates. This creates a suction effect in the direction of the quenching plates. This suction results in addition to a generated by the arc itself magnetic blowing field that the arc is moved to the arrangement of the quenching plates and divided between these into several partial arcs, which take on the quenching footholds
  • the holding device comprises an insulating strip, the side walls having holding holes for the pins, wherein the side walls delimiting the splitter stack on the longitudinal side edges of the quenching plates, and wherein the insulating strip has a rear wall, the splitter stack in the arc in the direction of Limited narrow-side edges opposite rear edges of the quenching plates limited.
  • the lateral boundary of the splitter stack through the side walls of the holding device causes a maintenance of the pressure within the quenching chamber, which promotes the arc quenching.
  • the rear wall has opening slots through which the pressure generated by the arc can be reduced. This serves to tune the pressure conditions within the quenching chamber and helps to improve arc run-in and improved arc division.
  • the rear wall has on its narrow sides projecting retaining lugs to align the arc quenching device in the housing of a service switching device.
  • the side walls leave the splitter stack in the area of the inlet legs of the quenching plates.
  • the quenching chamber is so to speak laterally opened to pass a portion of the resulting gas pressure past the quenching chamber.
  • An installation switching device is in particular a circuit breaker or a circuit breaker, with a fixed and a movable contact piece, which together form a contact point, and with an arc extinguishing device for extinguishing an arc occurring at the contact point
  • the arc quenching device is designed with a plurality of arc extinguishing plates having arc splitter stack in which the arc enters and is extinguished therein, the arc quenching plates being arranged in a stack parallel to each other and held spaced apart by a holding device, each arc quenching plate having two longitudinal side edges extending symmetrically to a longitudinal center axis and an inlet region, in which, starting from an inlet narrow side edge, extending in an arc direction and the arc entry point open inlet opening between two inlet legs is formed, and wherein the inlet neck funnel-shaped and with respect to the longitudinal center axis asymmetrically narrows in the arc direction, and wherein the formation of the arc
  • the service switching device has a double contact point with two arc quenching devices, each sub-contact point is associated with an arc quenching device, which is designed as described above.
  • FIG. 1 shows a plan view of the broad side of a quenching plate 1, 1 'according to the invention. It has a rectangular basic configuration with two longitudinal side edges 5, 5 'extending symmetrically to a longitudinal central axis 4, an inlet narrow side edge 7 and a rear edge 14. It has an inlet region 6, in which, starting from the inlet narrow side edge 7, extending in the arc running direction and the arc entry point towards open inlet cutout between two inlet legs 8, 8 'is formed. The inlet cut narrows in a funnel shape and based on the longitudinal center axis 4 asymmetrically in the arc running direction.
  • a first inlet leg 8 is formed with a first, the inlet cutout on one side limiting inlet edge 9 and a second inlet leg 8 'with a second, the inlet cutout on one side limiting inlet edge 9'.
  • the inlet cutout merges at its end located in the arc inlet direction into a base region 10 connecting the two inlet legs 9, 9 '.
  • the width of the first inlet limb 8 at the base region 10 is greater than the width of the second inlet limb 8 'at the base region 10.
  • the inlet cutout thus has an asymmetrical V-shape with straight inlet edges 9, 9 'relative to the longitudinal central axis 4.
  • the first inlet edge 9 of the first inlet leg 8 forms a first angle 17 with the longitudinal central axis 4.
  • the second inlet edge 9 'of the second inlet leg 8' forms a second angle 17 'with the longitudinal central axis 4.
  • the first angle 17 is in a preferred embodiment here in a range between 20 - 25 °.
  • the depth of the V-shaped cutout that is the distance between the inlet narrow side edge 7 and the base region 10, lies here in one preferred embodiment Range between 6.5 - 7.0 mm.
  • the arc quenching plate (1, 1 ') has on its longitudinal sides 5, 5' in each case two projecting pins 11, with which it in retaining holes in the holding device 3, see below and the Figures 2 - 4, can take.
  • the quenching plate (1, 1 ') consists of a ferromagnetic material and is covered with a copper layer.
  • FIGS. 2 to 4 show one of sixteen arc quenching plates 1, 1 ', each of which we in Fig. 1 is constructed, formed arc splitter stack 2, in which an arc run into and can be deleted, the arc quenching plates 1, 1 'arranged in a stack parallel to each other and held by a holding device 3 from each other.
  • the arc quenching plates 1, 1 ' are arranged alternately mirrored one above the other at their longitudinal central axis 4, so that each arc quenching plate 1.1' with one of its inlet legs 8, 8 'in each case the inlet section of the adjacent thereto arc extinguishing plates 1', 1 in the stacking direction partially covered.
  • an alternating sequence of first and second inlet legs 8, 8 ' is formed on each side of the stack center plane defined by the longitudinal central axes 4 of the stacked quenching plates 1, 1'.
  • the quenching plate stack according to the invention can be thought of as being built up from an alternating sequence of first and second quenching plates 1, 1 '.
  • the first quenching plates 1 are those quenching plates which are arranged so that their first inlet legs 8 lie one above the other in the stacking direction and on a first side of the stacking middle plane defined by the longitudinal central axes 4 of the stacked quenching plates. In FIG. 3 These are the quenching plates, the first inlet leg 8 are left of the longitudinal center axes 4 of the quenching plates.
  • the second quenching plates 1 are those quenching plates which are arranged so that their first inlet legs 8 lie one above the other in the stacking direction and on a second side of the stacked central plane defined by the longitudinal central axes 4 of the stacked quenching plates, the second side lying opposite the first side.
  • the first inlet leg 8 are right of the longitudinal center axes 4 of the quenching plates.
  • first quenching plates 1 form a first part quenching plate stack and the second quenching plates 1 'form a second part quenching plate stack, and that the first and the second quenching plate stacks have been joined together.
  • the first and second quenching plates 1, 1 ' are constructed identically, they only differ in that a second quenching plate 1' emerges from a first quenching plate 1 by mirroring on its longitudinal central axis 4.
  • the holding device 3 comprises an insulating strip which has side walls 12, 12 'with holding holes for the pins 11, the side walls 12, 12' delimiting the splitter stack at the longitudinal side edges 5, 5 'of the quenching plates 1, 1'. There are four mounting holes are provided for each quench 1, 1 ', which are arranged in pairs symmetrically to the longitudinal central axis 4.
  • the insulating strip has a rear wall 13 which delimits the splitter stack 2 at the rear side edges 14 of the quenching plates 1, 1 'lying opposite the inlet narrow side edges 7 in the arc inlet direction.
  • the rear wall 13 has opening slots 15 through which the pressure generated by the arc can be dissipated.
  • the rear wall 13 has on its narrow sides projecting retaining lugs 16 to align the arc quenching device in the housing of a service switching device.
  • retaining lugs 16 are provided, these are used to align the extinguishing chamber in the device.
  • the opening slots 15 in the rear wall 13 serve to tune the pressure conditions within the quenching chamber and ensure optimum arc inlet and optimum arc division.
  • the quenching plates are summarized, held by a splitter holder and aligned against each other in parallel.
  • the quenching plates are arranged alternately mirrored. This leads to a division of the arc additional extension of the partial arcs and results in an overall faster rising and higher arc voltage. As a result, rapid and safe extinguishing of the arc can be ensured, especially in DC applications.
  • a fast rising and overall high arc voltage protects the service switching device especially in DC application from overload and damage.
  • the illustrated arc quenching device according to the invention with the quenching chamber according to the invention can be used in DC and AC circuit breakers or switch disconnectors.
  • the arc quenching device with the quenching chamber according to the invention can advantageously be used in single-chamber systems as well as in a two-chamber system for the rapid extinction of electric arcs.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)
EP12004401.1A 2012-04-05 2012-06-12 Installation d'extinction d'arc lumineux et commutateur d'installation avec une installation d'extinction d'arc lumineux Withdrawn EP2648199A3 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013101191529A CN103366989A (zh) 2012-04-05 2013-04-08 灭弧装置和带有灭弧装置的安装开关器具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012006922 2012-04-05

Publications (2)

Publication Number Publication Date
EP2648199A2 true EP2648199A2 (fr) 2013-10-09
EP2648199A3 EP2648199A3 (fr) 2014-03-12

Family

ID=46514052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12004401.1A Withdrawn EP2648199A3 (fr) 2012-04-05 2012-06-12 Installation d'extinction d'arc lumineux et commutateur d'installation avec une installation d'extinction d'arc lumineux

Country Status (3)

Country Link
EP (1) EP2648199A3 (fr)
CN (1) CN103366989A (fr)
DE (1) DE202012013107U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015063120A1 (fr) * 2013-10-29 2015-05-07 Eaton Industries (Austria) Gmbh Insert de chambre d'extinction d'arc
WO2015188865A1 (fr) * 2014-06-12 2015-12-17 Siemens Aktiengesellschaft Dispositif chambre d'extinction pour un appareil de commutation électromagnétique
WO2016078875A1 (fr) * 2014-11-18 2016-05-26 Eaton Industries (Austria) Gmbh Dispositif de commutation

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014119474A1 (de) 2014-12-22 2016-06-23 Eaton Electrical Ip Gmbh & Co. Kg Löschblechanordnung für ein Schaltgerät
DE102015200507A1 (de) 2015-01-15 2016-07-21 Volkswagen Aktiengesellschaft Schalt- und Schutzeinrichtung für Hochvolt-Bordnetze

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008021138A1 (de) 2007-04-28 2008-10-30 Abb Ag Lichtbogenlöschblechanordnung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1903074U (de) * 1964-08-05 1964-10-29 Stotz Kontakt Gmbh Lichtbogenloeschkammer mit keramikwaenden und deionblechen.
DE10356271B4 (de) * 2003-11-28 2008-02-14 Siemens Ag Schaltgerät
CZ20041197A3 (cs) * 2004-12-08 2006-07-12 Hess Trading Sr, Spol. S R.O. Zhásecí komora jistice
CN2938361Y (zh) * 2006-03-18 2007-08-22 天正集团有限公司 小型断路器灭弧装置
CN102768925B (zh) * 2011-05-06 2015-02-04 北京人民电器厂有限公司 断路器用灭弧室

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008021138A1 (de) 2007-04-28 2008-10-30 Abb Ag Lichtbogenlöschblechanordnung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015063120A1 (fr) * 2013-10-29 2015-05-07 Eaton Industries (Austria) Gmbh Insert de chambre d'extinction d'arc
CN105684118A (zh) * 2013-10-29 2016-06-15 伊顿工业（奥地利）有限公司 灭弧室嵌入件
WO2015188865A1 (fr) * 2014-06-12 2015-12-17 Siemens Aktiengesellschaft Dispositif chambre d'extinction pour un appareil de commutation électromagnétique
CN105900204A (zh) * 2014-06-12 2016-08-24 西门子公司 用于电磁开关设备的灭弧室装置
WO2016078875A1 (fr) * 2014-11-18 2016-05-26 Eaton Industries (Austria) Gmbh Dispositif de commutation

Also Published As

Publication number Publication date
EP2648199A3 (fr) 2014-03-12
DE202012013107U1 (de) 2014-10-28
CN103366989A (zh) 2013-10-23

Similar Documents

Publication Publication Date Title
EP2649628B1 (fr) Interrupteur à chambre d'extinction
EP2737506B1 (fr) Protection pour courant continu
EP2648199A2 (fr) Installation d'extinction d'arc lumineux et commutateur d'installation avec une installation d'extinction d'arc lumineux
DE102012223168A1 (de) Elektromechanisches Schaltgerät
DE102011089234A1 (de) Lichtbogen-Löschvorrichtung und Schutzschaltgerät
EP2936530B1 (fr) Disjoncteur
EP3428942B1 (fr) Dispositif d'extinction d'arc de courant continu et appareil de commutation de courant continu électromécanique
EP0350825B1 (fr) Appareil de commutation électrique
EP2555217B1 (fr) Système de limitation de courant
DE10312820B4 (de) Lichtbogenlöschblechanordnung für einen elektrischen Schalter, insbesondere einen elektrischen Leitungsschutzschalter
DE102006030952A1 (de) Elektrisches Installationsgerät mit Lichtbogen-Vorkammerraum, Lichtbogenleitschienen und strombegrenzender Lichtbogenlöscheinrichtung
DE3413555A1 (de) Loescheinrichtung fuer elektrische schalter
DE102008021025A1 (de) Lichtbogenlöschblechanordnung
DE102017202370B4 (de) Lichtbogenlöschvorrichtung, elektromechanisches Schutzschaltgerät und Herstellverfahren
EP2830076A1 (fr) Appareil de commutation
EP2747107B1 (fr) Commutateur électrique
EP3327742B1 (fr) Dispositif d'extinction d'un arc électrique et disjoncteur électromécanique
DE102020205784A1 (de) Schaltgerät mit Kommutierungsstrompfad
DE3810977C2 (de) Strombegrenzende Schalteinrichtung mit elektrodynamisch öffnenden Schaltstücken
EP2747108A2 (fr) Commutateur pour un fonctionnement à courant continu
DE102009035299A1 (de) Kontaktsystem und Schaltgerät
DE102016213073A1 (de) Schaltsystem
EP3221876B1 (fr) Dispositif de commutation
EP1291886B1 (fr) Dispositif de contact à multibras pour disjoncteurs de protection limiteurs de courant
EP1168553B1 (fr) Dispositif de prévention d'arc pour installation de commutation à isolation gaseuse

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIC1 Information provided on ipc code assigned before grant

Ipc: H01H 9/36 20060101AFI20140203BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20140913