EP1205958A1 - Magnetischer Schutzschalter mit hohem Schaltvermögen - Google Patents

Magnetischer Schutzschalter mit hohem Schaltvermögen Download PDF

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Publication number
EP1205958A1
EP1205958A1 EP01440327A EP01440327A EP1205958A1 EP 1205958 A1 EP1205958 A1 EP 1205958A1 EP 01440327 A EP01440327 A EP 01440327A EP 01440327 A EP01440327 A EP 01440327A EP 1205958 A1 EP1205958 A1 EP 1205958A1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
locks
breaker according
common
breaking
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Withdrawn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
EP01440327A
Other languages
English (en)
French (fr)
Inventor
Christophe Duvernelle
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.)
Hager Electro SAS
Original Assignee
Hager Electro SAS
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 Hager Electro SAS filed Critical Hager Electro SAS
Publication of EP1205958A1 publication Critical patent/EP1205958A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1045—Multiple circuits-breaker, e.g. for the purpose of dividing current or potential drop
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting mechanism
    • 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
    • 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
    • H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns

Definitions

  • the present invention relates to the field of apparatus electrical safety devices fitted to the control and protection means high powers and relates to a high magnetic circuit breaker breaking capacity.
  • Control for example, of high power motors generally requires a control and protection circuit comprising a contactor protected by a magnetic circuit breaker and by a circuit breaker thermal, the magnetic circuit breaker being mounted upstream of the contactor and of the thermal circuit breaker.
  • the magnetic circuit breakers used in this generally come in the form of specific circuit breakers largely oversized, using contact parts and important magnetic circuits.
  • the sizing of parts and magnetic circuits is suitable for withstand significant short circuits.
  • the actuators magnetic implemented are not very efficient.
  • the object of the present invention is to overcome these drawbacks by offering a magnetic circuit breaker with high breaking capacity, low size and quick release.
  • the high power magnetic circuit breaker break is characterized in that it is essentially constituted by the combination of at least two electromagnetic switchgear assemblies mounted in series in the same housing, each comprising a cut and connected to a manual arming and triggering means common and common or independent trigger.
  • FIGS. 1 to 5 of the accompanying drawings show a magnetic circuit breaker with high breaking capacity, which is essentially consisting of the combination of at least two electromagnetic assemblies cut-off 1 mounted in series in the same housing 2, each comprising a switching chamber 6 and connected to a means 3 common manual trigger and trigger common or independent.
  • the two sets electromagnetic cut-off 1, each comprising a coil 9 with a movable core 9 ', are mounted in the housing 2 according to an arrangement symmetrical in opposition, in which their lock 4, which are provided each of a movable contact 7 cooperating with a fixed contact 8, are at close to each other, are electrically connected by a 4 'braid and cooperate with a common arc sheet 5 having a configuration symmetrical with respect to the median axis of the housing 2, while their chamber cutoff 6 are arranged at maximum mutual spacing.
  • Such a arrangement of the electromagnetic cut-off assemblies 1 and their breaking chamber 6 allows automatic arc division during a cut.
  • the case 2 is advantageously a modular case comprising a 2 'input / output terminal and a 2 "output / input terminal, as well as a 2 "'device for mounting on a modular fixing rail.
  • conformation of the housing 2 allows a simple and quick adaptation on a mounting element for the control assembly to be fitted.
  • the interrupting chambers 6 are advantageously chambers with deionization plates, in which the arc voltage in said deionization plates is greater than the network voltage.
  • the magnetic field When the magnetic field is normal in terms of the product, it has an action on the speed of propagation of the arc and on the speed of displacement of moving conductors due to electromagnetic forces.
  • the arcs due to the breaking will have a favorable effect on the continued opening of the locks 4, following the removal of their movable contact 7 from the fixed contact 8 corresponding.
  • the circuit breaker according to the invention implements a limitation type quick cut technique, in which the cores 9 'of the coils 9 of each set 1 make a percussion of the locks 4 causing the mobile contacts 7 to tear off from the fixed contacts 8, the electric arc consecutive to this tearing propagating towards the breaking chamber 6 and being brought into the deionization sheets of this last at an arc voltage value higher than that of the network, so that said arc is very quickly extinguished. So the electrodynamic effects short circuit are exploited to achieve rapid arc extinction electric.
  • the locks 4 are connected by a braid 4 'extending in direction of the arc sheet 5.
  • said braid 4 ' is placed between the locks 4 in a loop extending in the direction opposite to the arc sheet between said locks 4.
  • the braid 4 ′ is subjected, during a short circuit, to a magnetic traction, which has the effect of helping to open the locks 4 and therefore the lifting of the movable contacts 7.
  • the exhaust is configurable to optimize the ratio volume / pressure between the risks of the casing bursting compared to priming on the rail.
  • the common manual arming and tripping means 3 and common or independent trigger is constituted by a lever 10 connected to the locks 4 of the electromagnetic cut-off assemblies 1 by through rods 11 and 12 and two barrels 13 for reversing movement.
  • a lever 10 connected to the locks 4 of the electromagnetic cut-off assemblies 1 by through rods 11 and 12 and two barrels 13 for reversing movement.
  • FIG. 6 of the appended drawings shows, schematically, an alternative embodiment of the invention, in which the movable contacts 7 of the locks 4 cooperate with central fixed contacts 8 and the coils 9 act on said locks 4, by means of their cores 9 ′ in a tear-off movement of the contacts 7.
  • the cores 9 'carry out during a trigger a withdrawal movement towards the inside of the coils 9, movement which results in a training locks 4 and therefore contacts 7, each via a drive end 9 " of the core 9 'of the corresponding coil 9.
  • each lock 4 is directly connected to a coil 9 by a braid, the contact in the service position being provided by the central fixed contacts 8 mounted on an arc sheet.
  • a circuit breaker produced in accordance with this second mode of realization works in an identical way to that described with regard to Figures 1 to 5.
  • the positioning of the fixed contacts 8 centrally allows to set take advantage of the electrodynamic repulsion effect of the contacts to increase the opening speed and thereby reduce the cut-off time.
  • circuit breaker according to the invention allows use optimal standard electro-mechanical products existing in the construction field of modular circuit breakers, so the realization of such magnetic circuit breakers with high breaking capacity can be carried out by implementing manufacturing techniques and assembly known and therefore at a relatively low cost price.
  • this circuit breaker has a manufacturing cost clearly lower than that of existing circuit breakers to date. Indeed, due to the deletion of elements such as connection braids, certain manual operations can be omitted and the manufacture of circuit breakers according to the invention can be automated. This results in a lower manufacturing cost.

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  • Breakers (AREA)
EP01440327A 2000-10-03 2001-10-02 Magnetischer Schutzschalter mit hohem Schaltvermögen Withdrawn EP1205958A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0012617A FR2814851B1 (fr) 2000-10-03 2000-10-03 Disjoncteur magnetique a haut pouvoir de coupure
FR0012617 2000-10-03

Publications (1)

Publication Number Publication Date
EP1205958A1 true EP1205958A1 (de) 2002-05-15

Family

ID=8854950

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01440327A Withdrawn EP1205958A1 (de) 2000-10-03 2001-10-02 Magnetischer Schutzschalter mit hohem Schaltvermögen

Country Status (2)

Country Link
EP (1) EP1205958A1 (de)
FR (1) FR2814851B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6482717B1 (ja) * 2017-11-22 2019-03-13 カーリング テクノロジーズ、 インコーポレイテッドＣａｒｌｉｎｇ Ｔｅｃｈｎｏｌｏｇｉｅｓ， Ｉｎｃ． ダブルブレーク接点を備える高電圧ｄｃ回路ブレーカ

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010019432A1 (de) * 2010-05-05 2011-11-10 Siemens Aktiengesellschaft Doppelunterbrechendes Schutzschaltgerät zum Überwachen eines Stromkreises
FR3030867B1 (fr) * 2014-12-19 2017-11-24 Schneider Electric Ind Sas Chambre de coupure d'arc pour un disjoncteur electrique, et disjoncteur comportant une telle chambre.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1257933B (de) * 1964-03-20 1968-01-04 Bbc Brown Boveri & Cie Elektrischer Leistungsschalter
EP0649155A1 (de) * 1993-10-15 1995-04-19 Hager Electro S.A. Doppelte Lichtbogenlaufschiene für die Lichtbogenleitkammer eines Schutzschalters

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1257933B (de) * 1964-03-20 1968-01-04 Bbc Brown Boveri & Cie Elektrischer Leistungsschalter
EP0649155A1 (de) * 1993-10-15 1995-04-19 Hager Electro S.A. Doppelte Lichtbogenlaufschiene für die Lichtbogenleitkammer eines Schutzschalters

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6482717B1 (ja) * 2017-11-22 2019-03-13 カーリング テクノロジーズ、 インコーポレイテッドＣａｒｌｉｎｇ Ｔｅｃｈｎｏｌｏｇｉｅｓ， Ｉｎｃ． ダブルブレーク接点を備える高電圧ｄｃ回路ブレーカ
US10236145B1 (en) * 2017-11-22 2019-03-19 Carling Technologies, Inc. High voltage DC circuit breaker with double break contacts
CN109817498A (zh) * 2017-11-22 2019-05-28 嘉灵科技有限公司 具有双断路触点的高压直流断路器

Also Published As

Publication number Publication date
FR2814851A1 (fr) 2002-04-05
FR2814851B1 (fr) 2002-12-20

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