EP1191565A1 - Konfiguration von modularen elektrischen Apparaten zur Aufteilung des elektrischen Lichtbogens - Google Patents

Konfiguration von modularen elektrischen Apparaten zur Aufteilung des elektrischen Lichtbogens Download PDF

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Publication number
EP1191565A1
EP1191565A1 EP00440252A EP00440252A EP1191565A1 EP 1191565 A1 EP1191565 A1 EP 1191565A1 EP 00440252 A EP00440252 A EP 00440252A EP 00440252 A EP00440252 A EP 00440252A EP 1191565 A1 EP1191565 A1 EP 1191565A1
Authority
EP
European Patent Office
Prior art keywords
arc
central part
modular electrical
branches
intermediate sheet
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
EP00440252A
Other languages
English (en)
French (fr)
Other versions
EP1191565B1 (de
Inventor
Stéphane Haessler
Francis Deckert
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
Priority to EP00440252A priority Critical patent/EP1191565B1/de
Priority to PT00440252T priority patent/PT1191565E/pt
Priority to AT00440252T priority patent/ATE228714T1/de
Priority to DE60000879T priority patent/DE60000879T2/de
Publication of EP1191565A1 publication Critical patent/EP1191565A1/de
Application granted granted Critical
Publication of EP1191565B1 publication Critical patent/EP1191565B1/de
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
    • 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 arc extinguishing devices which equip modular electrical devices, for example of the type breaker.
  • These devices conventionally comprise a fixed contact and a contact which establish an electrical connection when they are in contact with each other on the other and which cuts it when they are separated, voluntarily using a joystick or automatically by tilting a mechanical lock in case of overcurrent or overload on the line.
  • One of the objectives of the invention is to propose a system mechanically simplest possible that is to say that does not change the operation of contacts as they exist in conventional modular devices.
  • the arc extinguishing system of the invention could then be applied to existing devices without requiring a new design of contacts, trigger lock etc ...
  • Another object of the invention is to present a system which occupies a the smallest possible space.
  • the solution that has been chosen is based on a set classic single contact, therefore generating a single arc when separation.
  • the electrical appliance modular comprises means for dividing the electric arc created at the spacing of the contacts in n portions, each of said portions of the arc being directed towards a its own arc extinguishing chamber.
  • the arc is divided into as many portions as there are breaking chambers or extinction in the product.
  • the system of the invention therefore implements two main functions, an arc division function, and an orientation function arc portions thus divided towards their respective extinguishing chambers.
  • the means of dividing the arc include a sheet potential-free intermediary whose location in relation to the sheets of arc conduction on the one hand, and geometry on the other hand allow the arc to split on contact.
  • said intermediate sheet has a central part which first meets the arc, and two branches which develop in two distinct directions substantially opposite and in the same general direction than each initial arc conduction sheet.
  • the central part mainly performs the division function, and secondarily begins the orientation function of arc portions, while the two branches direct said arc portions, in cooperation with arc conduction sheets, towards extinction zones.
  • the central part of the intermediate sheet is oriented substantially perpendicular to the arc when it reaches it.
  • This central part is arranged and oriented so that it is in the natural path of the arc and that it cuts it when it progresses naturally after its creation, because combined magnetic forces, possibly gas blows, and configuration of arc conduction sheets.
  • the intermediate sheet may itself have symmetry by compared to a plane passing through its central part and looking parallel to the direction general arc progression before division.
  • said central part of the sheet intermediate can then be positioned relative to the arc conduction sheets so that the arc undergoes a division substantially in the middle.
  • the central part positioned so as to be located in the natural trajectory of the arc, includes or is close to the axis materializing the direction of progression of said arc.
  • each branch of the intermediate sheet and the sheet of arc conduction which faces it delimit an arc extinguishing chamber.
  • the intermediate sheet has a central part pointing towards the sheets of arc conduction, and two lateral branches looking perpendicular to the axis of the central part, which is substantially equidistant from said conduction sheets arc.
  • the central part and the lateral branches are develop in the same medium plane.
  • the top of the central part is rounded, and connected to the lateral branches by curvilinear portions with an orientation parallel to that arc conduction sheets at their junction with the central part summit, level at which the distance with said arc conduction sheets is minimum and defines the entry of arc extinguishing chambers.
  • the geometry of said intermediate sheet is therefore provided to cut the arc first, then adapt to the changing orientation of the arc conduction sheets so as to perform the function of guiding the arc portions, in the same plane, towards the arc extinction zones.
  • the central part of the intermediate sheet looks parallel to the arc conduction sheets and splits axially in two branches each oriented in front of one of the arc conduction sheets while gradually deviating from it.
  • the arc portions from the division and progressing on either side of said central part of the intermediate sheet are each guided to one of the two branches from the axial division of the central part on the one hand by partitions arranged on either side thereof and moving respectively towards one and the other of these branches, and on the other hand by the shape of the arc conduction sheets.
  • the two arc portions do not progress in the same plane, in two different directions, but on the contrary side by side in the Same direction.
  • the branches from the central part of the sheet intermediate each form an inclined plane developing at two angles of inverse signs and ending with a final portion of pace parallel to said central part.
  • the arc conduction sheets, first centered with respect to the central part, each have a baffle leading to a portion located in face of said final portion.
  • the two arc extinguishing chambers thus defined are side by side, separated by an insulating wall developing from the separation of the part central in two distinct branches.
  • the electrical circuit of the modular electrical appliance very conventionally comprises two lateral electrical terminals (1) and (2), a coil (B), two fixed (4) and mobile (5) contacts respectively, and a member thermal (T) bimetal type.
  • the fixed contact (4) is extended by an arc conduction sheet (7) at the edge a first arc extinguishing chamber.
  • the movable contact (5) is connected via a conductive braid (8) to a sheet (9) connected on the one hand to the terminal (2), and extending on the other hand into a sheet arc conduction (10) defining the second of the arc breaking chambers.
  • the product which is shown in figure 2a is a circuit breaker, which consists of conventional components of a circuit breaker, namely a thermal actuator, a magnetic actuator etc ... on which it is not necessary to carry out a detailed description, since they are not part of the invention as such.
  • the arc breaking chambers are two in number, substantially located between the arc conduction sheets (7) and (10) and an intermediate sheet (11). In this configuration, each room has a pack of sheets of deionization (12, 13) in which the arc is extinguished.
  • the single arc which is visible in figure 2a is then divided in two portions sent respectively to the arc extinguishing chambers limited by the stacks of sheets (12) and (13). These rooms are, in this configuration, in the same medium plane.
  • the intermediate sheet is a hybrid sheet, at the same time free deionization sheet of potential which has the function of splitting the arc and sheet metal of arc which has the function of orienting the arc towards the breaking chambers.
  • Said intermediate sheet (11) comprises a central portion (14) pointing to the fixed (4) and movable (5) contacts, and two lateral branches (15) and (16) located substantially opposite the two sheets arc conduction (7) and (10) respectively.
  • Figures 2a to 2e show the birth of the arc, when the contact mobile (5) moves away from the fixed contact (4).
  • the electric arc then progresses, mainly under the influence of magnetic forces, and switches from contact movable (5) towards the arc conduction sheet (10) at a loop which connects the latter to the sheet (9).
  • This switching appears in Figure 2b.
  • the arc therefore approaches the summit (14) of the intermediate sheet (11). This is achieved in Figure 2c.
  • the summit portion (14) is located exactly on the way to the arch. His summit rounded is followed by two equally rounded portions initiating the lateral branches (15) and (16) and arranged at the entrance to the extinguishing chambers arc as close as possible to the sheets (7) and (10).
  • the direction of propagation of the portions arc follows the bisector of the angle provided by each branch and the sheet opposite. These directions converge as the penetration into said chambers.
  • the two branches of the arch progress in opposition to each other. This configuration is also favorable because this antagonistic situation allows a mutual blowing of the two arcs, leading them towards their extinction chamber respectively.
  • the two branches of the arch are at the level of the packs deionization plates (12) and (13), where the arcs are divided so as to facilitate their extinction.
  • Figures 3a to 3c show the principle of another arc division system in which the two divided portions are also sent to two separate arc extinguishing chambers. Although these figures represent what system independently of any modular electrical device it may well heard to be integrated for example into a circuit breaker as shown in the figures previous or to a conventional circuit breaker.
  • the arc is guided between two arc conduction sheets opposite (21, 22) towards an intermediate sheet (23), itself endowed a central portion (24) from which two branches (25, 26) depart, one of which the other.
  • Each of the arc conduction sheets (21, 22) includes a first portion parallel to each other and superimposed.
  • the orientation of these sheets then diverges: sheet (21) is oriented towards the front of the figure, while sheet (22) is oriented towards the back of the figure.
  • This change of orientation aims to place the conduction sheet arc (21) substantially opposite the branch (26) of the intermediate sheet (23) and conversely to place the arc conduction sheet (22) substantially opposite the branch (25).
  • This facing position is obtained at the level of the deionization plates (27, 28), integrated into two arc chambers in this case arranged side by side.
  • the branches (25, 26) of the intermediate sheet (23) actually constitute inclined planes which diverge from each other, and each aim to remove one of the branches (25, 26) of one of the two initial arc conduction sheets (21, 22).
  • the two arc extinguishing chambers thus defined and comprising respectively the stacks of deionization plates (27 and 28) are separated by an insulating wall (29).
  • Other walls, also insulating, serve to guide the arc portions, as will be shown in more detail below.
  • the electric arc has been divided into two branches after having encountered the central portion (24) of the intermediate sheet (23).
  • said central portion (24) is located in the natural path of the electric arc between the conduction sheets (21 and 22).
  • the upper branch of the electric arc is guided between the arc conduction sheet (21) and the portion central (24) of the intermediate sheet (23) towards the inclined plane of the branch (26), this guide being reinforced by the existence of an oblique insulating wall (30).
  • Branch lower part of the arch is directed towards the inclined plane equipping the branch (25) of the intermediate sheet (23).
  • Figure 3c shows the arcs at said inclined planes (25) and (26).
  • the arc portions then run parallel, and undergo an elongation progressive until reaching a length equivalent to the entry of the sheet packs deionization (27) and (28).
  • FIG. 4 we obtain a propelling magnetic whorl. Indeed, immediately after the division of the arc, the magnetic field that is created in the turn shown in Figure 4 promotes the propulsion of the two arc portions towards their respective breaking chamber.
  • FIG. 5 the second configuration, that of FIGS. 3a to 4 appears seen from the entrance of the double arc extinguishing chamber.
  • This view shows the perfect guide symmetry of the two arc portions with a guide wall (31) corresponding in the lower part to the guide wall (30) cited above.
  • This second configuration can completely be used in conjunction with the first alternative (object of Figures 2a to 2e). It can also be used without pack of deionization plates, with an alternative extinguishing solution and can be used as a replacement for a pack of standard deionization plates.

Landscapes

  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Connecting Device With Holders (AREA)
  • Pinball Game Machines (AREA)
  • Position Input By Displaying (AREA)
EP00440252A 2000-09-25 2000-09-25 Konfiguration von modularen elektrischen Apparaten zur Aufteilung des elektrischen Lichtbogens Expired - Lifetime EP1191565B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP00440252A EP1191565B1 (de) 2000-09-25 2000-09-25 Konfiguration von modularen elektrischen Apparaten zur Aufteilung des elektrischen Lichtbogens
PT00440252T PT1191565E (pt) 2000-09-25 2000-09-25 Configuracoes de aparelhos electricos modulares com o objectivo de dividir o arco electrico
AT00440252T ATE228714T1 (de) 2000-09-25 2000-09-25 Konfiguration von modularen elektrischen apparaten zur aufteilung des elektrischen lichtbogens
DE60000879T DE60000879T2 (de) 2000-09-25 2000-09-25 Konfiguration von modularen elektrischen Apparaten zur Aufteilung des elektrischen Lichtbogens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00440252A EP1191565B1 (de) 2000-09-25 2000-09-25 Konfiguration von modularen elektrischen Apparaten zur Aufteilung des elektrischen Lichtbogens

Publications (2)

Publication Number Publication Date
EP1191565A1 true EP1191565A1 (de) 2002-03-27
EP1191565B1 EP1191565B1 (de) 2002-11-27

Family

ID=8174164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00440252A Expired - Lifetime EP1191565B1 (de) 2000-09-25 2000-09-25 Konfiguration von modularen elektrischen Apparaten zur Aufteilung des elektrischen Lichtbogens

Country Status (4)

Country Link
EP (1) EP1191565B1 (de)
AT (1) ATE228714T1 (de)
DE (1) DE60000879T2 (de)
PT (1) PT1191565E (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1251532A2 (de) * 2001-04-20 2002-10-23 ABB PATENT GmbH Installationsschaltgerät
DE102011089234B4 (de) * 2010-12-21 2021-02-04 Siemens Aktiengesellschaft Lichtbogen-Löschvorrichtung und Schutzschaltgerät

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1124186A (fr) * 1955-03-29 1956-10-05 Comp Generale Electricite Interrupteur électrique à coupure dans un milieu gazeux
US3511950A (en) * 1968-12-23 1970-05-12 Allis Chalmers Mfg Co Arc chute
FR2701334A1 (fr) * 1993-02-05 1994-08-12 Alsthom Gec Cheminée d'extinction d'arc pour contacteur.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1124186A (fr) * 1955-03-29 1956-10-05 Comp Generale Electricite Interrupteur électrique à coupure dans un milieu gazeux
US3511950A (en) * 1968-12-23 1970-05-12 Allis Chalmers Mfg Co Arc chute
FR2701334A1 (fr) * 1993-02-05 1994-08-12 Alsthom Gec Cheminée d'extinction d'arc pour contacteur.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1251532A2 (de) * 2001-04-20 2002-10-23 ABB PATENT GmbH Installationsschaltgerät
DE102011089234B4 (de) * 2010-12-21 2021-02-04 Siemens Aktiengesellschaft Lichtbogen-Löschvorrichtung und Schutzschaltgerät

Also Published As

Publication number Publication date
EP1191565B1 (de) 2002-11-27
ATE228714T1 (de) 2002-12-15
PT1191565E (pt) 2003-04-30
DE60000879T2 (de) 2003-10-09
DE60000879D1 (de) 2003-01-09

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