EP2409310B1 - Vereinfachter leiter für schaltgerät und schaltgerät mit einem solchen leiter - Google Patents

Vereinfachter leiter für schaltgerät und schaltgerät mit einem solchen leiter Download PDF

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Publication number
EP2409310B1
EP2409310B1 EP10709216.5A EP10709216A EP2409310B1 EP 2409310 B1 EP2409310 B1 EP 2409310B1 EP 10709216 A EP10709216 A EP 10709216A EP 2409310 B1 EP2409310 B1 EP 2409310B1
Authority
EP
European Patent Office
Prior art keywords
contact
conductor
groove
support element
arcuate
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.)
Not-in-force
Application number
EP10709216.5A
Other languages
English (en)
French (fr)
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EP2409310A1 (de
Inventor
Daniel Demissy
Martin Leger
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.)
General Electric Technology GmbH
Original Assignee
Alstom Technology AG
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Filing date
Publication date
Application filed by Alstom Technology AG filed Critical Alstom Technology AG
Publication of EP2409310A1 publication Critical patent/EP2409310A1/de
Application granted granted Critical
Publication of EP2409310B1 publication Critical patent/EP2409310B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02—Details
    • H01H31/026—Movable parts and contacts mounted thereon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/42—Knife-and-clip contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact

Definitions

  • the present invention relates mainly to a conductor for electrical equipment, and in particular to a movable contact for disconnector for transmission and distribution of high voltage electrical energy installations in the open air, and more generally to a switch for transmission installations and distributing high voltage electrical energy in the open air.
  • a high voltage substation comprises in particular a set of circuit breakers and disconnectors.
  • the disconnector in a substation has a safety function, which is opened after the circuit breaker has been opened, making any intervention on the substation safe.
  • the disconnector comprises, in known manner, a movable contact rotated about an axis and a fixed contact. When the disconnector is closed, the movable contact and the fixed contact are in mechanical and electrical contact.
  • a high-voltage disconnector of known type comprises in known manner a movable contact about an axis, the latter being substantially horizontal when the disconnector is closed and substantially vertical when the disconnector is open.
  • the movable contact is formed by a set of interconnected pieces defining an air gap, in which a fixed contact is housed when the moving contact is moved.
  • the parts of the movable contact are fixed to each other by screw-nut assemblies, copper parts to ensure contact are also reported on the parts of the through contacts.
  • the particular structure of the fixed contact provides mechanical pinching and electrodynamic pinching of the movable contact by the fixed contact when the moving contact comes into contact therewith.
  • the patent EP 0 203 373 discloses a disconnector for medium voltage electrical equipment having a fixed contact and a movable contact. As before, the structure of the contacts is relatively complex.
  • the document CH526855 discloses an electrical conductor having a tube on which are diametrically opposed contacts, the contacts being fixed to the tube by screws.
  • a conductor for electrical equipment includes in particular at least one electrically conductive support element and at least two contact elements for electrically contacting, the support element having housings for the contact elements in which the contact elements are introduced by elastically deforming the support element and are maintained in these by releasing the elastic deformation.
  • the parts of the conductor intended to come into contact with at least one other contact of the electrical equipment are held by pinching in housings made in a support piece also electrically conductive.
  • the inventors have found that a pinch hold was sufficient to make conductors for electrical equipment offering great robustness and the ability to conduct the current required.
  • the realization of the conductor according to the present invention then no longer requires screw-nut assemblies or bores. Its structure is very simple. In addition, its cost is reduced.
  • This conductor is particularly suitable for producing a movable contact for a disconnector.
  • the structure of the support element is such that it facilitates the opening and closing of the grooves to avoid any plastic deformation, allowing easy replacement of the contacts without deterioration of the moving contact.
  • the structure of the fixed contact is such that it allows the appearance of a loop effect allowing the occurrence of an electrodynamic pinch phenomenon reinforcing the maintenance by pinching of the contact elements by the support element.
  • the main subject of the present invention is thus a conductor for electrical equipment comprising a first electrically conductive support element with a longitudinal axis and at least two electrical contact elements intended to come into contact, the support element having a recessed cylindrical shape provided on its outer periphery of at least two housings receiving the contact elements, said housings being arranged substantially symmetrically, wherein the contact elements are held in the housing by clamping, said contact elements having free ends extending transversely out housing, said contact elements being introduced into the housing by elastically deforming the support member and being held in the housing by releasing the elastic deformation.
  • the section of the support member may be defined by a first and a second arc connected at their ends at the housing, and wherein each housing is formed by a groove extending longitudinally over at least a portion of the length of the housing.
  • the support element each groove being delimited by two lateral edges connecting to a bottom, each arc being connected to a lateral edge of each groove, bringing the arcs together towards each other by elastic deformation causing the edges to move away from each other; side of each groove allowing the introduction of the contact elements into the grooves and a distance from the arcs from one another to a return to a substantially undistorted position causing the pinching of the elements of contact in the grooves and their maintenance therein.
  • Each lateral edge of a groove is advantageously connected to the bottom of the groove by a thinned zone so as to form an axis of rotation about which the lateral edge will pivot during the application of a force on the arches.
  • Each arc advantageously comprises a less rigid median zone surrounded by two more rigid portions, said stiffer portions forming levers pivoting around the thinned connection zone of the lateral edge of the groove to which they are connected.
  • the conductor according to the invention may comprise means for transversely stiffening the support element so as to avoid loosening of the nip.
  • the means for stiffening are, for example formed by a plate attached to the free end of the support member on the first and second arc so as to immobilize them relative to each other in a pinch position of contact elements.
  • each bore is delimited by a pair of longitudinal ribs projecting from the inner edge of an arc, said longitudinal ribs being bent towards one another.
  • a clearance may be provided between the bottom of each groove and the end of the contact element vis-à-vis it contains.
  • Reminder means resilient may be disposed in each groove between the bottom and the contact element.
  • the support element is for example made by extrusion, for example aluminum alloy.
  • the contact elements have, for example, the shape of a rectangular parallelepiped whose ends intended to come into contact with the fixed contact comprise a radius of curvature.
  • the conductor may form a movable contact of a disconnector, the support member having a first longitudinal end intended to be articulated on an insulating support, and a second longitudinal end at least at which the grooves are located.
  • the present invention also relates to an electrical apparatus comprising at least one conductor according to the present invention, intended to come into contact with at least one contact of the apparatus.
  • the conductor can be mobile and cooperate with at least one fixed contact or be fixed and cooperate with at least one moving contact.
  • the conductor can be fixed and bring into contact two contacts of the apparatus.
  • the contact (s) with which the driver comes into contact has (for example) a generally U-shape.
  • the electrical equipment according to the present invention may comprise means able to apply a force on each arc tending to bring them closer to each other. allow at least temporary release of the contact elements.
  • the conductor can form a movable contact and having at least one fixed contact, the support element being articulated on an insulating support by a first longitudinal end and carrying the contact elements at least at its second longitudinal end intended to come into contact with the at least one fixed contact.
  • each branch of the fixed contact is extended by an inwardly folded tab so as to be substantially parallel to the branch of the U to which it is attached, said tab being intended to come into mechanical contact with at least one element of the contact of the mobile contact.
  • Returning means are advantageously interposed between the tab and the branch to which it is attached to bias the tab inward towards the moving contact when it is in place.
  • the conductor according to the present invention will be described in its implementation in a disconnector. However, it is understood that the conductor according to the present invention can be implemented in any type of electrical equipment in which a conductor is required. In addition, the conductor is described as mobile, but it is understood that a fixed conductor is not beyond the scope of the present invention.
  • the disconnector is shown in the closed position.
  • the disconnector S comprises a movable contact 2 formed by the conductor according to the present invention, two fixed contacts 4 and insulating supports 8, 10.
  • the movable contact 2 is hingedly mounted on the insulating support 8, a fixed contact 4 is fixedly mounted on an insulating support 8 and the other fixed contact 4 is fixedly mounted on the support 10.
  • the movable contact 2 is able to pivot about an axis substantially orthogonal to the plane of the sheet, the movable contact can then move from a substantially horizontal position (position shown in FIG. Figure 4A ) when the disconnector is in the closed state at a substantially vertical position (position shown on the Figure 4B ) when the disconnector S is open.
  • the insulating support 8 of the movable contact 2 is formed of two columns 8.1, 8.2 supporting the articulation mechanism of the movable contact 2.
  • the operating mechanism of the disconnector is of known type and will not be described in detail.
  • it comprises a ribbon spring spiral intended to cause balancing of the disconnector blade.
  • the insulating column 8.1 also forms a control rod for controlling the movement of the moving contact.
  • the moving contact 2 is electrically connected to the electrical distribution network by a connection 12 symbolized on the left of the disconnector and the fixed contacts 4 are connected to the electrical distribution network by a connection 13 symbolized on the right of the disconnector.
  • the disconnector represented on Figures 4A and 4B comprises two fixed contacts 4, each intended to receive one end of the movable contact.
  • the two fixed contacts 4 being of similar structure, we would describe only one in detail.
  • the fixed contact 4 particularly visible on the figures 3 , 5A and 5B , has substantially a U-section whose two substantially parallel branches are electrically conductive, these two branches define an air gap in which is positioned the movable contact when the disconnector is in the closed position, the electrical conduction occurring between the movable contact and parallel branches.
  • the fixed contact 4 will be described in detail in the following description.
  • the movable contact 2 comprises a first support element 14 having the shape of a rod articulated by a first longitudinal end 14.1 on the first insulating support 8.
  • the support element 14 has a second longitudinal end 14.2 opposite the first end 14.1 provided with 16.1, 16.2 contact elements intended to cooperate with a fixed contact 4.
  • the support element 14 also comprises at the first longitudinal end 14.1 contact elements to cooperate with the other fixed contact 4 arranged on the support 8.
  • the support element 14 has a cylindrical shape of Y axis with a substantially ellipsoidal cross section.
  • the support element comprises housings receiving the contact elements.
  • the housings 20, 21 are made in the form of two grooves 20, 21 on the outer periphery of the cylinder, aligned on the X axis and arranged symmetrically with respect to a plane of symmetry P, the grooves being open towards the outside.
  • Each groove 20, 21 has two lateral edges 20.1, 20.2 and 21.1, 21.2 respectively, the lateral edge 20.1 connecting to the lateral edge 21.1 by an arc portion 22 and the lateral edge 20.2 connecting to the lateral edge 21.2 by an arc portion 23.
  • the grooves 20, 21 extend over the entire length of the support member 14.
  • This structure allows a simple embodiment by extrusion, and a cut to the desired length.
  • this embodiment makes it possible to have a substantially constant conducting section.
  • the contact elements 16.1, 16.2 are arranged in the grooves 20, 21 and are held by gripping between the edges 20.1, 20.2 and 21.1, 21.2, at a first end, their second end extending out of the grooves.
  • the grooves 20, 21 have a U-shaped cross section substantially corresponding to the outer profile of the contact elements and ensuring the maintenance thereof as we will see later.
  • the contact elements 16.1, 16.2 bear against the bottom of the grooves.
  • the contact elements 16 are advantageously flat and have a radius of curvature at the ends penetrating into the grooves and ends intended to come into contact with the fixed contact, these ends extending out of the grooves.
  • the grooves 20, 21 tend to open, ie the edges 20.1, 20.2 and 21.1, 21.2 deviate from each other respectively.
  • the opening of the grooves 20, 21 is symbolized by the angles ⁇ .
  • the contact elements 16.1, 16.2 are then introduced into the grooves 20, 21.
  • the force F1 is then released on the arches 22, 23, the grooves tend to return to their original shape, the edges 20.1, 20.2 and 21.1, 21.2 then approach each other respectively.
  • the contact elements having a transverse dimension slightly greater than that of the grooves receiving them, the grooves do not resume their initial configuration, a reaction stress F2 is then exerted on the contact elements 16 so as to pinch them and to immobilize them inside the grooves.
  • the contact elements are then secured to the support member 14 and this without using screw-nut assemblies or any other fastening mechanism.
  • the F2 efforts thus obtained can reach several thousand Newtons.
  • F1 is for example of the order of 7000N.
  • the lateral edges 20.1, 20.2, 21.1, 21.1 substantially perform a rotational movement around pivot axes designated Y1, Y2, Y3, Y4 respectively.
  • Each axis Y1, Y2, Y3, Y4 is located substantially at the junction between a lateral edge and the bottom of the corresponding groove.
  • the rotational movement of the lateral edges is advantageously facilitated by providing a thinning of the material at the junction between the side edge and the associated bottom.
  • the effort required to cause the pivoting of the lateral edge relative to the bottom of the groove is reduced, the risks of plastic deformation are also reduced.
  • arches 22, 23 are advantageously provided with a central zone 22.1, 23.1 thinned so as to facilitate the elastic deformation thereof.
  • the support member 14 can be seen in a deformed state, the two parts of each arches on either side of the thinned central portion 22.1, 23.1 having pivoted with respect to the central portion.
  • Each arc portion then functions as an independent rigid lever associated with a side edge of a groove.
  • the values of the deformations applied to the support element are limited to the area of elastic deformation of the support element so as to have a reversible deformation of the grooves.
  • the contact elements can be mounted and dismounted without deterioration of the mechanical properties of the support element.
  • the contact elements can suffer a wear by micro switching of the induced potentials in the de-energized lines by the proximity of the live lines, or wear due to the number of operations performed.
  • the removal of the contact elements is obtained by applying again a force F1 on the two arcs 22, 23 so as to bring them closer, causing the opening of the grooves, the contact elements can then be removed.
  • Means 24 (visible on the figure 6 ) to freeze the configuration of the cross section of the support member are also provided, eliminating any risk that the contact elements do not escape the grooves when applying an accidental force F1 on the support member.
  • These means are formed, in the example shown, by a plate 26 fixed on the free end of the support element on both the upper arc and the lower arc so as to immobilize them relative to each other. to the other in the pinch position of the contact elements.
  • the plate 26 is rectangular and is fixed at its four corners by four screws 27 to the two arches 22, 23.
  • the screws 27 are advantageously self-tapping screws, simplifying the production of the support and bores 28 .
  • Each of the arcs comprises two bores 28 to receive the screws 27.
  • the bores 28 are partially delimited by two longitudinal ribs projecting from the inner edge of the support element, curved towards one another. This shape allows the simple realization of the bores directly during the extrusion manufacturing of the support element. In addition, a material gain is obtained. But it is understood that one could achieve these bores by machining the support member.
  • the plate blocks deformation of the support member, and also provides electrical transfer to the priming horns 31 or two-electrode spark gaps during rotation of the support member for the residual currents.
  • stop means along the Y axis so as to limit the recoil movement of the support member 14 during the short circuit. These means are formed by the curved end 36.1 of the movable beam 36 of the movable contact, able to abut against the spark gaps 31.
  • the fixed contact 4 comprises a first U-shaped part 30, this part being fixed on the insulating support by its bottom 30.1, this part 30 comprises two substantially parallel branches 30, 2, 30, between which the mobile contact 2 is positioned.
  • Each branch 30.2, 30.3 is extended by a tab 32.2, 32.3 folded inwards and intended to come into contact with a contact element 16.12, 16.1 of the movable contact 2.
  • Elastic means 34 are advantageously provided between the tab 32.1, 32.3 and the branch 30.2, 30.3 respectively pushing the tab 32.1, 32.3 inwards, improving the electrical contact between the tab and the associated contact element .
  • the tabs 32.2, 32.3 are reported by screwing on the branches 30.2, 30.3 respectively.
  • the parts 30.2, 30.3 will be doubled so that the looping effect tends to push the tabs 32.2, 32.3 towards the moving contact without folding the branches 302, 30.3 rearwardly, which would reduce the contact pressure. .
  • the fixed contact 4 has four branches on either side
  • the movable contact 2 comprises two contact elements 16.1 and 16.2 on each side associated with each of the branches.
  • the movable contact then comprises two contact elements whose length makes it possible to cover about six contact fingers in case of displacement by the short circuit along the Y axis, and the fixed contact comprises four U-shaped parts.
  • the support element is for example made of aluminum alloys, advantageously by extrusion.
  • the contact elements 16 and the tabs are for example silver-plated copper, the branches of the U are for example also made of aluminum alloys.
  • a current i1 flows in the contact element 16.1, then in the tab 32.2, then in branch 30.2; a current i2 flows in the contact element 16.2, in the contact tab 32.3 and in the branch 30.3.
  • the currents i1 and i2 flow symmetrically with respect to a vertical plane P.
  • the current i1 flows in the leg 32.2 and the leg 30.2, which causes the repulsion of the leg 32.2 and the leg 30.2 one of the other.
  • Electromagnetic forces are thus created which tend to move the tab 32.2 and the branch 30.2 away from each other, the branch 30.2 being more rigid than the tab 32.2, there is a movement of the tab 32.2 towards the moving contact. 16.1 the stronger the short-circuit current is and the distance between the leg 32.2 and the branch 30.2 is small. This effect is used to obtain a pinch effect of movable contact 2 between the ends of the two tabs 32.2, 32.3 of the fixed contact.
  • the forces F 3 for pinching and blocking the moving contact in the gap of the fixed contact which are dynamic forces in that they occur only in the presence of a short circuit, are all the more important. that the short-circuit current flowing in the contacts is high. It is therefore understood that after closure of the disconnector according to the invention, the maximum contact force between the fixed contact and the movable contact is provided only during a short circuit.
  • a horizontal abutment for the movable contact is also provided between the two electrodes of the spark gap 31.
  • the operation of the disconnector according to the present invention is similar to that of a disconnector of known type and will not be described in detail.
  • the moving contact is rigid, ie it does not deform under the application of constraints during the operation of the disconnector and the fixed contact is conformable, ie it is able to deform to adapt to the dimension of the moving contact during operation.
  • This ability to deform is obtained thanks to the flexible tabs and the return springs.
  • the size of the air gap increases when the moving contact enters the fixed contact and adapts to the transverse dimension of the moving contact, the electrical contact thus obtained is of very good quality.
  • the movable contact that is able to deform, in particular that is capable of modifying its transverse dimension, i.e. the distance separating the two ends of the contact elements oriented radially outwards.
  • the contact elements are able to be movable in the grooves that receive them.
  • a clearance J is provided between the bottom of the groove and the end of the contact element vis-à-vis.
  • the transverse dimension D of the conductor can then be modified and can be adapted as a function of the dimension of the fixed contact.
  • an elastic return means 38 may be disposed between the bottom of the groove and the contact element to apply a force tending to bring the contact element out of the groove.
  • Retaining means (not shown) are advantageously provided to prevent the contact element from emerging entirely from the groove.
  • the disconnector When the disconnector is open, it can be provided to apply the F1 forces again to allow the contact elements to slide outwardly under the effect of the return means.
  • the deformability of the moving contact makes it possible to simplify the fixed contact.
  • the means capable of applying the forces F1 may be provided at the means maintaining the support element in its pinch configuration of the contact elements.
  • the conductor according to the present invention can be implemented in any type of electrical equipment to ensure intermittent or continuous electrical contact. This can be set up in electrical equipment and then no longer moved. In this configuration, the conformability of the driver is particularly interesting. geometry of the driver permanently adapting to those of the elements with which it is connected.
  • the conductor may comprise contact elements at its two longitudinal ends, the contact elements of one end being in contact with a part of the electrical equipment. electrical equipment and the elements of the other longitudinal end being in contact with the other part of the electrical equipment.
  • the current flows in the longitudinal direction from one longitudinal end to another.
  • the presence of the grooves along the entire length of the support element is particularly advantageous.
  • the conductor can also be implemented so that the current flows from a contact element to the opposite contact element through the support member.
  • the present invention is not limited to a movable contact in rotation, but also applies to a movable contact in translation and a movable contact in translation and / or in translation. rotation.
  • a conductor according to the present invention may comprise more than two contact elements.
  • the electrical apparatus according to the present invention is thus of simplified embodiment compared with those of the state of the art, in particular the disconnectors. Furthermore, the assembly and disassembly of the contact elements are simplified.

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  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Contacts (AREA)

Claims (17)

  1. Leiter (2) für ein Schaltgerät, enthaltend ein erstes stromleitendes Tragelement (14) mit einer Längsachse (Y) und zumindest zwei elektrische Kontaktelemente (6.1, 16.2), die dazu bestimmt sind, in Kontakt zu gelangen, wobei das Tragelement (14) eine hohlzylindrische Form hat, dadurch gekennzeichnet, dass das Tragelement an seinem Außenumfang mit zumindest zwei Aufnahmeausnehmungen (20, 21) versehen ist, welche die Kontaktelemente (16.1, 16.2) aufnehmen, wobei die Aufnahmeausnehmungen (20, 21) im Wesentlichen symmetrisch angeordnet sind, wobei die Kontaktelemente (16.1, 16.2) in den Aufnahmeausnehmungen (20, 21) eingeklemmt gehalten werden, wobei die Kontaktelemente (16.1, 16.2) freie Enden aufweisen, die sich quer aus den Aufnahmeausnehmungen heraus erstrecken, wobei die Kontaktelemente in die Aufnahmeausnehmungen eingeführt sind und dabei das Tragelement elastisch verformen und in den Aufnahmeausnehmungen gehalten werden, indem die elastische Verformung aufgehoben wird.
  2. Leiter nach Anspruch 1, wobei der Querschnitt des Tragelements (14) von einem ersten und einem zweiten Bogen (22, 23) definiert wird, die sich mit ihren Enden im Bereich der Aufnahmeausnehmungen (20, 21) anschließen und wobei jede Aufnahmeausnehmung (20, 21) von einer Nut gebildet wird, die sich längs über zumindest einen Teil der Länge des Tragelements (14) erstreckt, wobei jede Nut (20, 21) von zwei Seitenrändern (20.1, 20.2, 21.1, 21.2) eingegrenzt wird, die sich an einen Nutgrund anschließen, wobei jeder Bogen (22, 23) sich an einen Seitenrand (20.1, 20.2, 21.1, 21.2) einer jeden Nut (20, 21) anschließt, wobei eine Annäherung der Bögen (22, 23) aneinander durch elastische Verformung eine Entfernung der Seitenränder (20.1, 20.2, 21.1, 21.2) einer jeden Nut (20, 21) hervorruft, welche das Einführen der Kontaktelemente (16.2, 16.2) in die Nuten (20, 21) und ein Entfernen der Bögen (22, 23) voneinander bis zu einer Rückstellung in eine im Wesentlichen nicht verformte Stellung gestattet, welche das Einklemmen der Kontaktelemente (16.1, 16.2) in die Nuten (20, 21) und den Halt darin hervorruft.
  3. Leiter nach Anspruch 2, wobei jeder Seitenrand (20.1, 20.2, 21.1, 21.2) einer Nut (20, 21) sich an den Nutgrund der Nut (20, 21) über einen verdünnten Bereich anschließt, so dass eine Drehachse (Y1, Y2, Y3, Y4) gebildet wird, um die herum sich der Seitenrand (20.1, 20.2, 21.1, 21.2) bei Aufbringung einer Kraft auf die Bögen (22, 23) verschwenkt.
  4. Leiter nach Anspruch 3, wobei jeder Bogen (22, 23) einen weniger steifen Mittelbereich (22.1, 23.1) aufweist, der von zwei steiferen Teilen umgeben wird, wobei die steiferen Teile Schwenkhebel bilden, die um den verdünnten Verbindungsbereich des Seitenrands der Nut (20, 21) herum schwenken, mit dem sie verbunden sind.
  5. Leiter nach einem der Ansprüche 1 bis 4, enthaltend Mittel (24), um das Tragelement (14) quer zu versteifen, so dass ein Lösen der Klemmung vermieden wird.
  6. Leiter nach Anspruch 5 in Kombination mit Anspruch 2, wobei die Mittel (24) zum Versteifen aus einer Platte (26) gebildet sind, die am freien Ende des Tragelements an den ersten und den zweiten Bogen (22, 23) befestigt ist, so dass sie in einer Klemmstellung zum Einklemmen der Kontaktelemente (16.1, 16.2) zueinander festgelegt werden.
  7. Leiter nach Anspruch 6, wobei die Platte (26) mittels Bolzen (27) befestigt ist, die in Bohrungen (28) eingeschraubt sind, welche in den Bögen (22, 23) ausgebildet sind, wobei jede Bohrung (28) von einem Paar von Längsrippen eingegrenzt wird, die von dem Innenrand eines Bogens (22, 23) vorspringen, wobei die Längsrippen zueinander gebogen sind.
  8. Leiter nach einem der Ansprüche 2 bis 7, wobei ein Spiel zwischen dem Nutgrund einer jeden Nut und dem gegenüberliegenden Ende des Kontaktelements, das sie enthält, vorgesehen ist.
  9. Leiter nach dem vorangehenden Anspruch, enthaltend Federrückstellmittel, die in jeder Nut zwischen dem Nutgrund und dem Kontaktelement angeordnet sind.
  10. Leiter nach einem der Ansprüche 1 bis 9, wobei die Kontaktelemente (16.1, 16.2) die Form eines rechteckigen Quaders haben, bei dem die Enden, die mit dem feststehenden Kontaktstück in Kontakt gelangen sollen, einen Krümmungsradius aufweisen.
  11. Leiter nach einem der Ansprüche 1 bis 9, der ein bewegliches Kontaktstück eines Trennschalters bildet, wobei das Tragelement ein ersten Längsende aufweist, das an einen Isolierträger angelenkt werden soll, sowie zumindest ein zweites Längsende, in dessen Bereich die Nuten liegen.
  12. Schaltgerät mit zumindest einem Leiter nach einem der Ansprüche 2 bis 11, der dazu bestimmt ist, mit zumindest einem Kontaktstück dem Gerät in Kontakt zu gelangen.
  13. Schaltgerät nach dem vorangehenden Anspruch, wobei der Leiter beweglich ist und mit zumindest einem feststehenden Kontaktstück zusammenwirkt bzw. der Leiter feststehend ist und mit zumindest einem beweglichen Kontaktstück zusammenwirkt bzw. die beiden Kontaktstücke dem Gerät in Kontakt bringt.
  14. Schaltgerät nach Anspruch 12 oder 13, enthaltend Mittel, die dazu geeignet sind, eine Kraft auf jeden Bogen auszuüben, die dazu geneigt ist, sie anzunähern, um zumindest vorübergehend das Lösen der Kontaktelemente zu gestatten.
  15. Schaltgerät nach Anspruch 13, wobei sie einen Trennschalter bildet, in welchen der Leiter ein bewegliches Kontaktstück (2) bildet und zumindest ein feststehendes Kontaktstück (4) aufweist, wobei das Tragelement über ein erstes Längsende an einen Isolierträger angelenkt gelagert ist und zumindest die Kontaktelemente, die mit dem feststehenden Kontaktstück in Kontakt gelangen sollen, zumindest im Bereich seines zweiten Längsendes trägt
  16. Schaltgerät nach dem vorangehenden Anspruch, wobei jeder Schenkel (30.2, 30.3) des zumindest einen feststehenden Kontaktstücks (4) sich über eine Lasche (32.2, 32.3) fortsetzt, die nach innen umgelegt ist, so dass sie im Wesentlichen parallel zum Schenkel (30.2, 30.3) der U-Form verläuft, an den sie befestigt ist, wobei die Lasche (32.2, 32.3) dazu bestimmt ist, mechanisch in Kontakt mit zumindest einem Kontaktelement (16.1, 16.2) des beweglichen Kontaktstücks (2) zu gelangen.
  17. Schaltgerät nach dem vorangehenden Anspruch, wobei Rückstellmittel (34) zwischen Lasche (32.2, 32.3) und Schenkel (30.2, 30.3) eingefügt sind, an den sie befestigt ist, um die Lasche (32.2, 32.3) nach innen in Richtung zum beweglichen Kontaktstück (2) zu beaufschlagen, wenn es in Stellung ist.
EP10709216.5A 2009-03-20 2010-03-18 Vereinfachter leiter für schaltgerät und schaltgerät mit einem solchen leiter Not-in-force EP2409310B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0951812A FR2943451B1 (fr) 2009-03-20 2009-03-20 Conducteur simplifie pour appareillage electrique et appareillage electrique comportant au moins un tel conducteur
PCT/EP2010/053517 WO2010106126A1 (fr) 2009-03-20 2010-03-18 Conducteur simplifié pour appareillage electrique et appareillage electrique comportant au moins un tel conducteur

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EP2409310A1 EP2409310A1 (de) 2012-01-25
EP2409310B1 true EP2409310B1 (de) 2015-04-08

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EP (1) EP2409310B1 (de)
CA (1) CA2754611C (de)
FR (1) FR2943451B1 (de)
WO (1) WO2010106126A1 (de)

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
FR2981494B1 (fr) * 2011-10-18 2020-09-18 Alstom Technology Ltd Conducteur leger pour appareillage electrique et appareillage electrique comportant au moins un tel conducteur
FR3003992B1 (fr) 2013-03-28 2017-03-03 Alstom Technology Ltd Conducteur leger auto deglacant
EP3933870A1 (de) * 2020-07-01 2022-01-05 General Electric Technology GmbH Hochfrequenztransientenunterdrückung für hv-trennschalter mit gleitwiderstand

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH526855A (de) * 1970-07-23 1972-08-15 Siemens Ag Hebeltrenner

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388225A (en) * 1966-09-29 1968-06-11 Ite Circuit Breaker Ltd Jaw for ice breaking switch
US3544741A (en) * 1969-01-09 1970-12-01 Westinghouse Electric Corp Electric switch having improved blade construction
US3711662A (en) * 1972-01-17 1973-01-16 Westinghouse Electric Corp Electric disconnect switch having improved operating mechanism
DE2619205A1 (de) * 1976-04-30 1977-11-10 Bbc Brown Boveri & Cie Elektrische kontaktvorrichtung fuer hochspannungsschaltgeraete
EP0203373A1 (de) 1985-05-20 1986-12-03 BBC Brown Boveri AG Trennschalter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH526855A (de) * 1970-07-23 1972-08-15 Siemens Ag Hebeltrenner

Also Published As

Publication number Publication date
FR2943451B1 (fr) 2012-12-21
CA2754611A1 (fr) 2010-09-23
CA2754611C (fr) 2018-04-24
EP2409310A1 (de) 2012-01-25
FR2943451A1 (fr) 2010-09-24
WO2010106126A1 (fr) 2010-09-23

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