[go: up one dir, main page]

EP1014389A1 - Hermetically sealed feedthrough bushing for external electrical apparatus - Google Patents

Hermetically sealed feedthrough bushing for external electrical apparatus Download PDF

Info

Publication number
EP1014389A1
EP1014389A1 EP99403125A EP99403125A EP1014389A1 EP 1014389 A1 EP1014389 A1 EP 1014389A1 EP 99403125 A EP99403125 A EP 99403125A EP 99403125 A EP99403125 A EP 99403125A EP 1014389 A1 EP1014389 A1 EP 1014389A1
Authority
EP
European Patent Office
Prior art keywords
screen
current
conductive element
cylindrical
bushing
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
EP99403125A
Other languages
German (de)
French (fr)
Other versions
EP1014389B1 (en
Inventor
Thierry Starck
Kenneth Johnson
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.)
Alstom SA
Original Assignee
Alstom SA
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 Alstom SA filed Critical Alstom SA
Publication of EP1014389A1 publication Critical patent/EP1014389A1/en
Application granted granted Critical
Publication of EP1014389B1 publication Critical patent/EP1014389B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H01B17/30—Sealing
    • H01B17/301—Sealing of insulators to support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H01B17/265—Fastening of insulators to support

Definitions

  • the invention relates to a hermetically sealed current crossing for gas-insulated outdoor electrical appliance and more particularly a current crossing intended to ensure the connection of a bare conductor to a shielded type device with a metallic shielding shell.
  • current bushings made of molded synthetic material for outdoor electrical appliance.
  • An example of such a crossing is shown on the Figure 1, this crossing comprises a central conductor 1 molded with resin insulating 2 and it comprises a fixing flange molded 3 in the same material.
  • a field control screen 4 is generally embedded in the resin between the flange and conductor in the area where the bushing mounts in the opening provided for it in a wall 5 of the metal casing of an appliance.
  • the bridle is fixed to the wall by bolting and in a way not shown here, it has an annular groove 6 for a seal 6 making it possible to obtain a fitting of the bushing on the wall which is hermetically sealed.
  • This kind of the drawback has the disadvantage of using a relatively fragile material, involve the use of a gasket which is difficult to assemble and a field control screen whose positioning is critical. Plus the shape outside of the crossing in the constraint zone, conical in shape, included between the flange and the fins 7, does not allow the mounting of transformers current torics.
  • Such a crossing comprises a molded resin core 9 around a central conductor 8 and a fixing flange 10 molded with the core.
  • the surface external of the flange and a cylindrical part 10A of the core which follows it is covered with a conductive coating 11 intended to be earthed, when the crossing is in place.
  • the metallized cylindrical part 10A allows mounting at least one toroidal current transformer 12 positioned in the vicinity of the clamp.
  • An electric field distribution cone 13 is threaded on the core following the current transformer (s) and before a series fins 14 made of elastomeric material which are stacked on the core one after the other the other.
  • This cone is functionally equivalent to the conical, constrained zone, included by the crossing shown in Figure 1 and it allows to control the field at the end of the metallization which covers the cylindrical part 10A and a part of himself which follows this part when the crossing is Assembly.
  • the desired electrical creepage distance is obtained through the stack of fins 14 as known to those skilled in the art.
  • This second type of crossing is fixed on the wall 15 of a metal casing of an appliance of the same way that the first type mentioned above and it involves the establishment of the same type of seal, so it has the same disadvantages topic. It also has the disadvantage of implementing a relatively large number important of different parts whose realization and assembly imply a succession of operations and in particular manual operations. Finally, a disassembly of the fins and the electric field distribution cone is necessary, if a toroidal transformer replacement is to be carried out, by example following a failure.
  • the invention therefore provides a hermetically sealed current crossing for gas-insulated outdoor electrical appliance, more particularly intended for ensure the connection of a bare conductor to a device, housed in a the metal casing, one wall of which has an opening provided for allow connection of a conductive element of the device at one end a conductive element axially housed in the bushing.
  • the current crossing is intended to come up at an opening 16 provided for it in a metal wall 17 of the casing of an apparatus, of the armored type, housed in a enclosure kept hermetically sealed filled with an insulating gas electric or possibly under vacuum.
  • This crossing has an element axial conductor 18, intended to be connected to a conductive element 19, the device in the envelope.
  • this conductive element 19 projects out of the envelope of the device, at through the opening 16 of this envelope and it is connected end to end with the conductive element 18 which is screwed onto a threaded rod 21 carried by the conductive element 19.
  • a connecting piece and screen 20 allows the fixing of the crossing on a envelope, it is cylindrical in appearance and of the weldable metal flange type. In the example presented, this part is centered on the conductive element 18 which there partially penetrates through its end for fixing to the conductive element 19.
  • This connection and screen piece 20 is for example made of stainless steel, it comprises a part 20A consisting of a cylinder of revolution, the diameter corresponds to that of the opening 16 of the wall 17 of the envelope at level where it is fixed tightly, seamlessly and by welding.
  • This connecting piece and screen is therefore at the same potential as the rest of the envelope of the appliance which is usually earthed.
  • the length of part 20A is chosen to allow it to receive one or more transformers externally toric current 22, of appropriate diameter, which comes (s) the belt.
  • This part 20B extends itself by a short cylindrical element of revolution 20C whose end 20D is flared and has a rolled edge.
  • the diameter of part 20C is included between that of the conductive element 18 and that of the part 20A.
  • Room 20 is shaped so as to constitute an electric field control screen creating between it which is grounded and the conductive element 18, when the latter is under pressure. It is immobilized relative to the conductive element 18 by a body 23 made of an insulating material.
  • This bushing body 23 is produced by molding on the conductive element 18 which it overlap here, except at the ends, and on the connecting piece and screen parts 20A, 20B and 20C which it encompasses. Tubular in shape, it forms a plug and it extends along the longitudinal axis of the conductive element 18 of the current crossing. According to a preferred embodiment, this body 23 is preferably made in a hard elastomeric material, not very permeable to gas and having a large held in an outdoor atmosphere to take account of usual conditions operating devices equipped with such current crossings.
  • Level required sealing can be obtained by adhesion of the elastomer on the inserts which constitute the conductive element 18 and the parts of connection piece and screen 20B, 20C, 20D, after depositing an adhesion primer on these inserts, or again by direct molding of the body on the conductive element 18 and on the part 20. It is also envisaged to produce the crossing body 23 in a material of the kind resin having qualities corresponding to those which are envisaged above. The part of the connecting piece and screen 20 intended to be covered by the resin of the bushing body 23 is then previously covered by a layer sealing in elastomeric material on which the resin intended for constitute the crossing body.
  • the molding of the bushing body 23 which is carried out at once, ensures simultaneously the production of a part grouping a core 23A, in which is longitudinally housed the central conductive element 18, a distribution cone of electric field 23B, including the connecting piece and screen parts 20B, 20C, 20D, as well as a succession of fins 23C.
  • the bushing body part 23 which is located under part 20B of the connection and screen and which is housed in the cylindrical part 20A is of frustoconical and reduces from part 23B until it has a small diameter different from that of the conductive element 18. It has a length which can be reduced, when the enclosure where the bushing is housed is filled with insulating gas with high dielectric strength.
  • the overall diameter of the bushing is kept low, although sufficient to ensure a reduced electric field in the air at the cone of distribution of electric field, due to the narrowing which the holding allows dielectric of the layer of insulating material present between the flange 20 and the conductive element 18. It is intended to be at most equal to that provided for the part of connecting part and screen 20A, the widest part 20, in order to allow the installation and removal of one or more transformers current 22 without further displacement of current crossing element.
  • the reduced diameter cylindrical part 20C of the flange 20, which is concentric with the conductive element 18 extends over a length chosen in a known manner from the skilled person, so that the crossing has rigidity and resistance to bending allowing it to resist the bending forces that may be applied to it at its outer end.
  • the flaring made up of part 20D reduces the field concentration at this end level.

Landscapes

  • Insulators (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Installation Of Bus-Bars (AREA)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Tumbler Switches (AREA)

Abstract

The connection comprises a moulded body structure (23) that has limited gas permeability. A number of fins (23C) are formed on the external body section with an electrical conductor (18). mounted within the body section. The connector is mounted to an external metallic wall (17) of a structure.

Description

L'invention concerne une traversée de courant hermétiquement étanche pour appareil électrique d'extérieur à isolation gazeuse et plus particulièrement d'une traversée de courant destinée à assurer le raccordement d'un conducteur nu sur un appareil de type blindé dont l'enveloppe métallique de blindage est mise à la terre. Il existe des traversées de courant réalisées en matériau synthétique moulé pour appareil électrique d'extérieur. Un exemple d'une telle traversée est montré sur la figure 1, cette traversée comporte un conducteur central 1 surmoulé de résine isolante 2 et elle comporte une bride de fixation moulée 3 dans la même matière. Un écran 4 de contrôle du champ est généralement noyé dans la résine entre la bride et le conducteur dans la zone où la traversée se monte dans l'ouverture prévue pour elle dans une paroi 5 de l'enveloppe métallique d'un appareil. La bride se fixe à la paroi par boulonnage et d'une manière non représentée ici, elle possède une gorge annulaire 6 pour un joint 6 d'étanchéité permettant d'obtenir un montage de la traversée sur la paroi qui soit hermétiquement étanche. Ce type de traversée a pour inconvénients d'utiliser un matériau relativement fragile, d'impliquer l'utilisation d'un joint dont le montage est délicat à réaliser et d'un écran de contrôle de champ dont le positionnement est critique. De plus la forme extérieure de la traversée dans la zone de contrainte, d'allure conique, comprise entre la bride et les ailettes 7, ne permet pas le montage de transformateurs toriques de courant.The invention relates to a hermetically sealed current crossing for gas-insulated outdoor electrical appliance and more particularly a current crossing intended to ensure the connection of a bare conductor to a shielded type device with a metallic shielding shell. There are current bushings made of molded synthetic material for outdoor electrical appliance. An example of such a crossing is shown on the Figure 1, this crossing comprises a central conductor 1 molded with resin insulating 2 and it comprises a fixing flange molded 3 in the same material. A field control screen 4 is generally embedded in the resin between the flange and conductor in the area where the bushing mounts in the opening provided for it in a wall 5 of the metal casing of an appliance. The bridle is fixed to the wall by bolting and in a way not shown here, it has an annular groove 6 for a seal 6 making it possible to obtain a fitting of the bushing on the wall which is hermetically sealed. This kind of the drawback has the disadvantage of using a relatively fragile material, involve the use of a gasket which is difficult to assemble and a field control screen whose positioning is critical. Plus the shape outside of the crossing in the constraint zone, conical in shape, included between the flange and the fins 7, does not allow the mounting of transformers current torics.

Il existe aussi des traversées, de type composite, dont un exemple est montré sur la figure 2. Une telle traversée comporte un noyau en résine moulée 9 autour d'un conducteur central 8 et une bride de fixation 10 moulée avec le noyau. La surface externe de la bride et d'une partie cylindrique 10A du noyau qui lui fait suite est recouverte d'un revêtement conducteur 11 destiné à être mis à la terre, lorsque la traversée est en place. La partie cylindrique métallisée 10A permet le montage d'au moins un transformateur torique de courant 12 positionné au voisinage de la bride de fixation. Un cône de répartition de champ électrique 13 vient s'enfiler sur le noyau à la suite du ou des transformateurs de courant et avant une série d'ailettes 14 en matériau élastomère qui sont empilées sur le noyau à la suite l'une de l'autre. Ce cône équivaut fonctionnellement à la zone de contrainte, conique, comportée par la traversée montrée sur la figure 1 et il permet de contrôler le champ à l'extrémité de la métallisation qui recouvre la partie cylindrique 10A et une partie de lui-même qui fait suite à cette partie lorsque la traversée est assemblée. La ligne de fuite électrique souhaitée est obtenue par l'intermédiaire de la pile d'ailettes 14 comme connu de l'homme de métier. Ce second type de traversée se fixe sur la paroi 15 d'une enveloppe métallique d'appareil de la même manière que le premier type évoqué plus haut et il implique la mise en place du même type de joint d'étanchéité, il présente donc les mêmes inconvénients à ce sujet. Il présente aussi l'inconvénient de mettre en oeuvre un nombre relativement important de pièces différentes dont la réalisation et le montage impliquent une succession d'opérations et notamment d'opérations manuelles. En dernier lieu, un démontage des ailettes et du cône de répartition de champ électrique est nécessaire, si un remplacement d'un transformateur torique est à réaliser, par exemple suite à une défaillance.There are also composite crossings, an example of which is shown on Figure 2. Such a crossing comprises a molded resin core 9 around a central conductor 8 and a fixing flange 10 molded with the core. The surface external of the flange and a cylindrical part 10A of the core which follows it is covered with a conductive coating 11 intended to be earthed, when the crossing is in place. The metallized cylindrical part 10A allows mounting at least one toroidal current transformer 12 positioned in the vicinity of the clamp. An electric field distribution cone 13 is threaded on the core following the current transformer (s) and before a series fins 14 made of elastomeric material which are stacked on the core one after the other the other. This cone is functionally equivalent to the conical, constrained zone, included by the crossing shown in Figure 1 and it allows to control the field at the end of the metallization which covers the cylindrical part 10A and a part of himself which follows this part when the crossing is Assembly. The desired electrical creepage distance is obtained through the stack of fins 14 as known to those skilled in the art. This second type of crossing is fixed on the wall 15 of a metal casing of an appliance of the same way that the first type mentioned above and it involves the establishment of the same type of seal, so it has the same disadvantages topic. It also has the disadvantage of implementing a relatively large number important of different parts whose realization and assembly imply a succession of operations and in particular manual operations. Finally, a disassembly of the fins and the electric field distribution cone is necessary, if a toroidal transformer replacement is to be carried out, by example following a failure.

L'invention propose donc une traversée de courant hermétiquement étanche pour appareil électrique d'extérieur à isolation gazeuse, plus particulièrement destinée à assurer le raccordement d'un conducteur nu à un appareil, logé dans une l'enveloppe métallique dont une paroi est dotée d'une ouverture prévue pour permettre le raccordement d'un élément conducteur de l'appareil à une extrémité d'un élément conducteur axialement logé dans la traversée.The invention therefore provides a hermetically sealed current crossing for gas-insulated outdoor electrical appliance, more particularly intended for ensure the connection of a bare conductor to a device, housed in a the metal casing, one wall of which has an opening provided for allow connection of a conductive element of the device at one end a conductive element axially housed in the bushing.

L'invention, ses caractéristiques et ses avantages sont précisés dans la description qui suit en liaison avec la figure 3 de la liste de figures évoquées ci-dessous où :

  • la figure 1 présente un exemple d'une première traversée de courant connue ;
  • la figure 2 présente un exemple d'une seconde traversée de courant connue ;
  • la figure 3 présente un exemple d'une traversée de courant selon l'invention.
The invention, its characteristics and its advantages are specified in the description which follows in conjunction with FIG. 3 of the list of figures mentioned below where:
  • Figure 1 shows an example of a first known current crossing;
  • Figure 2 shows an example of a second known current crossing;
  • Figure 3 shows an example of a current crossing according to the invention.

La traversée de courant, selon l'invention, qui est illustrée sur la figure 3 est destinée à venir se monter au niveau d'une ouverture 16 prévue pour elle dans une paroi métallique 17 de l'enveloppe d'un appareil, de type blindé, logé dans une enceinte maintenue hermétiquement étanche remplie d'un gaz d'isolation électrique ou éventuellement sous vide. Cette traversée comporte un élément conducteur axial 18, destiné à venir se raccorder à un élément conducteur 19, correspondant, de l'appareil que contient l'enveloppe. Dans la réalisation présentée, cet élément conducteur 19 saille hors de l'enveloppe de l'appareil, au travers de l'ouverture 16 de cette enveloppe et il se raccorde bout à bout avec l'élément conducteur 18 qui vient se visser sur une tige filetée 21 portée par l'élément conducteur 19.The current crossing, according to the invention, which is illustrated in FIG. 3 is intended to come up at an opening 16 provided for it in a metal wall 17 of the casing of an apparatus, of the armored type, housed in a enclosure kept hermetically sealed filled with an insulating gas electric or possibly under vacuum. This crossing has an element axial conductor 18, intended to be connected to a conductive element 19, the device in the envelope. In the realization presented, this conductive element 19 projects out of the envelope of the device, at through the opening 16 of this envelope and it is connected end to end with the conductive element 18 which is screwed onto a threaded rod 21 carried by the conductive element 19.

Une pièce de liaison et d'écran 20 permet la fixation de la traversée sur une enveloppe, elle est d'allure cylindrique et du genre bride métallique soudable. Dans l'exemple présenté, cette pièce est centrée sur l'élément conducteur 18 qui y pénètre partiellement par son extrémité de fixation à l'élément conducteur 19. Cette pièce de liaison et d'écran 20 est par exemple réalisée en acier inoxydable, elle comporte une partie 20A constituée d'un cylindre de révolution dont le diamètre correspond à celui de l'ouverture 16 de la paroi 17 d'enveloppe au niveau de laquelle elle se fixe de manière étanche, sans joint et par soudage. Cette pièce de liaison et d'écran est donc au même potentiel que le reste de l'enveloppe de l'appareil qui est usuellement mise à la terre. La longueur de la partie 20A est choisie pour lui permettre de recevoir extérieurement un ou des transformateurs toriques de courant 22, de diamètre approprié, qui vienne(nt) la ceinturer.A connecting piece and screen 20 allows the fixing of the crossing on a envelope, it is cylindrical in appearance and of the weldable metal flange type. In the example presented, this part is centered on the conductive element 18 which there partially penetrates through its end for fixing to the conductive element 19. This connection and screen piece 20 is for example made of stainless steel, it comprises a part 20A consisting of a cylinder of revolution, the diameter corresponds to that of the opening 16 of the wall 17 of the envelope at level where it is fixed tightly, seamlessly and by welding. This connecting piece and screen is therefore at the same potential as the rest of the envelope of the appliance which is usually earthed. The length of part 20A is chosen to allow it to receive one or more transformers externally toric current 22, of appropriate diameter, which comes (s) the belt.

La partie de la pièce de liaison et d'écran 20, qui est à l'opposé de celle par laquelle cette pièce se soude sur une paroi 17 d'une enveloppe d'appareil, se prolonge par une partie 20B de diamètre progressivement décroissant et d'allure au moins approximativement tronconique. Cette partie 20B se prolonge elle-même par un court élément cylindrique de révolution 20C dont l'extrémité 20D est évasée et présente un bord roulé. Le diamètre de la partie 20C est compris entre celui de l'élément conducteur 18 et celui de la partie 20A. La pièce 20 est conformée de manière à constituer un écran de contrôle du champ électrique se créant entre elle qui est à la terre et l'élément conducteur 18, lorsque celui-ci est sous tension. Elle est immobilisée par rapport à l'élément conducteur 18 par un corps 23 réalisé en un matériau isolant.The part of the connecting piece and screen 20, which is opposite to that by which this part is welded to a wall 17 of an appliance casing, is extends by a portion 20B of progressively decreasing diameter and pace at least approximately frustoconical. This part 20B extends itself by a short cylindrical element of revolution 20C whose end 20D is flared and has a rolled edge. The diameter of part 20C is included between that of the conductive element 18 and that of the part 20A. Room 20 is shaped so as to constitute an electric field control screen creating between it which is grounded and the conductive element 18, when the latter is under pressure. It is immobilized relative to the conductive element 18 by a body 23 made of an insulating material.

Ce corps de traversée 23 est réalisé par moulage sur l'élément conducteur 18 qu'il recouvre ici, sauf aux extrémités, et sur les parties de pièce de liaison et d'écran 20A, 20B et 20C qu'il englobe. D'allure tubulaire, il forme bouchon et il s'étend selon l'axe de longitudinal de l'élément conducteur 18 de la traversée de courant. Selon une forme préférée de réalisation, ce corps 23 est préférablement réalisé dans un matériau élastomère dur, peu perméable au gaz et possédant une grande tenue en atmosphère extérieure pour tenir compte des conditions usuelles d'exploitation des appareils équipés de telles traversées de courant. Le niveau d'étanchéité nécessaire peut être obtenu par adhésion de l'élastomère sur les inserts que constituent l'élément conducteur 18 et les parties de pièce de liaison et d'écran 20B, 20C, 20D, après dépôt d'un primaire d'adhésion sur ces inserts, ou encore par moulage direct du corps sur l'élément conducteur 18 et sur la pièce 20. Il est aussi envisagé de réaliser le corps de traversée 23 en un matériau du genre résine possédant des qualités correspondant à celles qui sont envisagées ci-dessus. La partie de la pièce de liaison et d'écran 20 destinée à être recouverte par la résine du corps de traversée 23 est alors préalablement recouverte par une couche d'étanchéité en matériau élastomère sur laquelle est surmoulée la résine destinée à constituer le corps de traversée.This bushing body 23 is produced by molding on the conductive element 18 which it overlap here, except at the ends, and on the connecting piece and screen parts 20A, 20B and 20C which it encompasses. Tubular in shape, it forms a plug and it extends along the longitudinal axis of the conductive element 18 of the current crossing. According to a preferred embodiment, this body 23 is preferably made in a hard elastomeric material, not very permeable to gas and having a large held in an outdoor atmosphere to take account of usual conditions operating devices equipped with such current crossings. Level required sealing can be obtained by adhesion of the elastomer on the inserts which constitute the conductive element 18 and the parts of connection piece and screen 20B, 20C, 20D, after depositing an adhesion primer on these inserts, or again by direct molding of the body on the conductive element 18 and on the part 20. It is also envisaged to produce the crossing body 23 in a material of the kind resin having qualities corresponding to those which are envisaged above. The part of the connecting piece and screen 20 intended to be covered by the resin of the bushing body 23 is then previously covered by a layer sealing in elastomeric material on which the resin intended for constitute the crossing body.

Le moulage du corps de traversée 23 qui s'effectue en une fois, assure simultanément la réalisation d'une pièce regroupant un noyau 23A, dans lequel est longitudinalement logé l'élément conducteur central 18, un cône de répartition de champ électrique 23B, englobant les parties de pièce de liaison et d'écran 20B, 20C, 20D, ainsi qu'une succession d'ailettes 23C.The molding of the bushing body 23 which is carried out at once, ensures simultaneously the production of a part grouping a core 23A, in which is longitudinally housed the central conductive element 18, a distribution cone of electric field 23B, including the connecting piece and screen parts 20B, 20C, 20D, as well as a succession of fins 23C.

Le contrôle des caractéristiques en matière de champ électrique, au niveau de la traversée de courant selon l'invention, est obtenu en donnant une forme conique appropriée au corps de traversée 23 autour des parties de la pièce de liaison et d'écran 20 qui y sont englobées à distance de l'interface air-élastomère d'allure conique. Comme déjà indiqué plus haut, cette pièce de liaison et d'écran 20 est mise à la terre du fait de son soudage sur la paroi 17 d'enveloppe de cellule où se trouve l'ouverture 16 qu'elle entoure, étant bien entendu supposé que cette enveloppe est elle-même à la terre.Checking the characteristics of the electric field at the level of the current crossing according to the invention, is obtained by giving a conical shape suitable for the bushing 23 around the parts of the connecting piece and screen 20 included therein at a distance from the air-elastomer interface conical. As already indicated above, this connecting piece and screen 20 is earthed due to its welding on the wall 17 of the cell envelope where finds the opening 16 which it surrounds, being of course assumed that this envelope is itself grounded.

La partie de corps de traversée 23 qui se trouve sous la partie 20B de la pièce de liaison et d'écran et qui se loge donc dans la partie cylindrique 20A est d'allure tronconique et se réduit depuis la partie 23B jusqu'à avoir un diamètre peu différent de celui de l'élément conducteur 18. Elle a une longueur qui peut être réduite, lorsque l'enceinte où vient se loger la traversée est remplie de gaz isolant à grande tenue diélectrique.The bushing body part 23 which is located under part 20B of the connection and screen and which is housed in the cylindrical part 20A is of frustoconical and reduces from part 23B until it has a small diameter different from that of the conductive element 18. It has a length which can be reduced, when the enclosure where the bushing is housed is filled with insulating gas with high dielectric strength.

Le diamètre hors tout de la traversée est maintenu à une valeur faible, quoique suffisante pour assurer un champ électrique réduit dans l'air au niveau du cône de répartition de champ électrique, en raison du rétrécissement qu'autorise la tenue diélectrique de la couche de matériau isolant présente entre la bride 20 et l'élément conducteur 18. Il est prévu qu'il soit au plus égal à celui prévu pour la partie de pièce de liaison et d'écran 20A, la plus large de la pièce 20, afin de permettre la mise en place et le retrait d'un ou de plusieurs transformateurs de courant 22 sans autre déplacement d'élément de traversée de courant.The overall diameter of the bushing is kept low, although sufficient to ensure a reduced electric field in the air at the cone of distribution of electric field, due to the narrowing which the holding allows dielectric of the layer of insulating material present between the flange 20 and the conductive element 18. It is intended to be at most equal to that provided for the part of connecting part and screen 20A, the widest part 20, in order to allow the installation and removal of one or more transformers current 22 without further displacement of current crossing element.

La partie cylindrique 20C de diamètre réduit de la bride 20, qui est concentrique à l'élément conducteur 18, s'étend sur une longueur choisie de manière connue de l'homme de métier, afin que la traversée possède la rigidité et la tenue à la flexion lui permettant de résister aux efforts de flexion susceptibles de lui être appliqués au niveau de son extrémité externe. L'évasement constitué par la partie 20D permet de réduire la concentration du champ à ce niveau d'extrémité.The reduced diameter cylindrical part 20C of the flange 20, which is concentric with the conductive element 18 extends over a length chosen in a known manner from the skilled person, so that the crossing has rigidity and resistance to bending allowing it to resist the bending forces that may be applied to it at its outer end. The flaring made up of part 20D reduces the field concentration at this end level.

Il est bien entendu envisageable de prévoir une forme d'extrémité à souder d'une traversée, selon l'invention, qui soit adaptée à la forme de la paroi d'enveloppe sur laquelle cette traversée vient se monter et plus particulièrement à la forme de l'ouverture en périphérie de laquelle la partie de pièce de liaison et d'écran 20A vient se positionner et se souder par son extrémité. Cette extrémité peut notamment être une section transversale plane dans le cas d'une paroi 17 plane et une section en gueule de loup dans le cas d'une paroi 17 cylindrique de révolution.It is of course conceivable to provide a form of end to be welded with a bushing, according to the invention, which is adapted to the shape of the envelope wall on which this crossing comes to mount and more particularly in the form of the opening at the periphery of which the connecting piece and screen part 20A is positioned and welded at its end. This end can in particular be a planar cross section in the case of a planar wall 17 and a wolf mouth section in the case of a cylindrical wall 17 of revolution.

Claims (7)

Traversée de courant hermétiquement étanche, pour appareil électrique d'extérieur à isolation gazeuse, plus particulièrement destinée à assurer le raccordement d'un conducteur nu à un appareil, logé dans une l'enveloppe métallique dont une paroi (17) est dotée d'une ouverture (16) prévue pour permettre le raccordement d'un élément conducteur (19) de l'appareil à une extrémité d'un élément conducteur (18) axialement logé dans la traversée, caractérisée en ce que cette traversée de courant comporte une pièce de liaison et d'écran (20), métallique et d'allure cylindrique, maintenue coaxiale avec l'élément conducteur (18), par un corps (23) en matériau isolant moulé la recouvrant partiellement et formant un bouchon imperméable au gaz, et en ce que cette pièce de liaison se termine par une partie cylindrique (20A), saillant hors du corps, par l'intermédiaire de l'extrémité de laquelle cette pièce se soude en périphérie d'ouverture (16).Hermetically sealed current crossing for electrical equipment gas-insulated exterior, more particularly intended to ensure the connection of a bare conductor to a device, housed in an enclosure metallic, one wall (17) of which has an opening (16) provided for allow the connection of a conductive element (19) of the device to a end of a conductive element (18) axially housed in the bushing, characterized in that this current crossing comprises a connecting piece and screen (20), metallic and cylindrical in shape, kept coaxial with the element conductor (18), by a body (23) of molded insulating material covering it partially and forming a gas-tight plug, and in that this piece of connection ends in a cylindrical part (20A), projecting out of the body, by the end of which this part is welded to the periphery opening (16). Traversée de courant, selon la revendication 1, où la pièce de liaison et d'écran comporte une première partie cylindrique de révolution (20A) dont le diamètre correspond à celui d'une ouverture (16), pour élément conducteur de raccordement d'appareil, en périphérie de laquelle elle vient se souder, où cette première partie cylindrique se prolongeant, sous la forme d'un écran de contrôle de champ électrique, par une partie (20B) de diamètre progressivement décroissant, située à l'opposé de l'extrémité de la première partie cylindrique par laquelle la pièce se soude et prolongée elle-même par une seconde partie cylindrique (20C) qui a un diamètre compris entre celui de la première partie cylindrique de révolution (20A) soudée et celui de l'élément conducteur (18) de la traversée et où la seconde partie cylindrique se termine par une partie évasée (20D).Current bushing according to claim 1, in which the connection and screen piece has a first cylindrical part of revolution (20A) whose diameter corresponds to that of an opening (16), for conductive element of device connection, on the periphery of which it is welded, where this first cylindrical part extending, in the form of a control screen electric field, by a part (20B) of diameter progressively decreasing, located opposite the end of the first cylindrical part by which the part is welded and extended itself by a second part cylindrical (20C) which has a diameter between that of the first part cylindrical of revolution (20A) welded and that of the conductive element (18) of the crossing and where the second cylindrical part ends in a flared part (20D). Traversée de courant, selon l'une des revendications, 1, 2, dans laquelle le corps (23) est un corps monobloc, d'allure tubulaire, réalisé par moulage autour de l'élément conducteur (18) de la traversée qu'il recouvre, sauf aux extrémités, en formant un noyau de logement (23A), pour cet élément, ce corps comportant des ailettes de déviation de ligne de fuite (23C) et englobant la pièce de liaison et d'écran, à l'exception de la partie (20A) par laquelle cette pièce se soude, pour prolonger le noyau par une partie formant cône de répartition de champ électrique.Current crossing according to one of claims 1, 2, in which the body (23) is a one-piece body, of tubular appearance, produced by molding around of the conductive element (18) of the bushing which it covers, except at the ends, by forming a housing core (23A), for this element, this body comprising vanishing line deflection fins (23C) and including the connecting piece and screen, except for the part (20A) by which this part is welded, to extend the core by a part forming a field distribution cone electric. Traversée de courant, selon la revendication 3, dans laquelle le diamètre hors tout du corps (23) est au plus égal à celui de la partie (20A) la plus large de la pièce de liaison et d'écran qui se trouve à l'extrémité de soudage de cette pièce, pour permettre le montage et le démontage d'au moins un transformateur torique de courant de diamètre correspondant sur cette partie la plus large.Current bushing according to claim 3, in which the outside diameter whole of the body (23) is at most equal to that of the widest part (20A) of the connecting and shielding part which is at the welding end of this part, to allow the mounting and dismounting of at least one toroidal transformer of current of corresponding diameter on this widest part. Traversée de courant, selon l'une des revendications 1 à 4, dans laquelle le corps, en matériau isolant est réalisé en un élastomère dur, imperméable au gaz et à forte tenue en atmosphère extérieure.Current crossing according to one of claims 1 to 4, in which the body, made of insulating material, made of a hard elastomer, impermeable to gas and with strong resistance in external atmosphere. Traversée de courant, selon l'une des revendications 1 à 4, dans laquelle le corps, en matériau isolant est réalisé en une résine, imperméable au gaz et à forte tenue en atmosphère extérieure qui est surmoulée sur la pièce de liaison et d'écran recouverte à ce niveau par une couche d'étanchéité en matériau élastomère.Current crossing according to one of claims 1 to 4, in which the body, made of insulating material, made of resin, impermeable to gas and strong held in an external atmosphere which is overmolded on the connecting piece and screen covered at this level by a sealing layer of elastomeric material. Traversée de courant, selon l'une des revendications 1 à 6, dans laquelle la pièce de liaison et d'écran est une pièce en acier inoxydable.Current crossing according to one of claims 1 to 6, in which the connecting piece and screen is a piece of stainless steel.
EP99403125A 1998-12-18 1999-12-13 Hermetically sealed feedthrough bushing for external electrical apparatus Expired - Lifetime EP1014389B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9815982A FR2787624B1 (en) 1998-12-18 1998-12-18 HERMETICALLY WATERPROOF CURRENT CROSSOVER FOR OUTDOOR ELECTRICAL APPLIANCE
FR9815982 1998-12-18

Publications (2)

Publication Number Publication Date
EP1014389A1 true EP1014389A1 (en) 2000-06-28
EP1014389B1 EP1014389B1 (en) 2004-02-04

Family

ID=9534116

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99403125A Expired - Lifetime EP1014389B1 (en) 1998-12-18 1999-12-13 Hermetically sealed feedthrough bushing for external electrical apparatus

Country Status (13)

Country Link
US (1) US6255589B1 (en)
EP (1) EP1014389B1 (en)
CN (1) CN1159822C (en)
AT (1) ATE259092T1 (en)
AU (1) AU760410B2 (en)
BR (1) BR9905897A (en)
CA (1) CA2292818A1 (en)
DE (1) DE69914576T2 (en)
ES (1) ES2214829T3 (en)
FR (1) FR2787624B1 (en)
NZ (1) NZ501788A (en)
PT (1) PT1014389E (en)
TR (1) TR199903116A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2961014A1 (en) * 2014-06-23 2015-12-30 Schneider Electric USA, Inc. Compact transformer bushing

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6346677B1 (en) * 1999-09-08 2002-02-12 Electro Composites, Inc. High-voltage bushing provided with external shields
DE102005059754B4 (en) * 2005-12-09 2010-05-27 Siemens Ag Injection molded outer cone bushing
FR2919955B1 (en) * 2007-08-07 2009-10-30 Areva T & D Sa DEVICE FOR CONTROLLING A HIGH ELECTRIC FIELD IN AN INSULATING SYNTHETIC MATERIAL, IN PARTICULAR FOR A CURRENT THROUGH A WALL THROUGH A WALL
FR2923954B1 (en) * 2007-11-20 2010-02-26 Schneider Electric Ind Sas BLIND CONNECTION OF TWO TERMINALS BY CONTACT BETWEEN PLANAR INTERFACES.
AU2013321871B2 (en) * 2012-09-26 2016-01-07 Mitsubishi Electric Corporation Power opening/closing device
CN105119069B (en) * 2015-09-09 2017-07-14 国网山东夏津县供电公司 A kind of digital transformer substation is used to become high pressure porcelain bushing shell wiring collet
CN105140670A (en) * 2015-10-14 2015-12-09 金坛市德博密封技术有限公司 Connector sealing member used for communication cable
DE102019210368B4 (en) 2019-07-12 2024-05-08 Vitesco Technologies GmbH Electrical power feedthrough
CN113131432B (en) * 2020-01-14 2023-03-14 香港浩岳国际有限公司 Explosion-proof plug-in capacitive cable outdoor terminal and preparation method
EP3979266B1 (en) * 2020-09-30 2024-06-05 Hitachi Energy Ltd Support for mounting an accessory equipment assembly to a base of bushing, a corresponding accessory equipment module, and bushing
CN113074252B (en) * 2021-03-12 2023-02-24 山东英信计算机技术有限公司 Sealing wire hole plug
CN120497021B (en) * 2025-07-18 2025-12-12 银河电气科技有限公司 High-altitude outdoor sleeve type current transformer and electric energy transmission equipment of locomotive

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3705281A (en) * 1971-04-29 1972-12-05 Joslyn Mfg & Supply Co Bushing insulator improvements for a dead tank vacuum switch
DE3208358A1 (en) * 1982-03-09 1983-09-22 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Method for producing a cast-resin insulator having capacitive field-control inserts
FR2729785A1 (en) * 1995-01-24 1996-07-26 Gec Alsthom T & D Sa Electrical insulator bushing with improved potential gradient for electrical appts. with metallic enclosure

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3018318A (en) * 1957-07-15 1962-01-23 Components For Res Inc High voltage cable terminal with stress cones
US3178505A (en) * 1962-05-09 1965-04-13 Westinghouse Electric Corp Terminal-bushing construction
US3318995A (en) * 1966-04-25 1967-05-09 Westinghouse Electric Corp Cast electrical bushing construction having controlled and shielded shrinkage voids
US3523157A (en) * 1969-01-03 1970-08-04 Allis Chalmers Mfg Co Cast insulating bushing with axially disposed electrical cable
US4431859A (en) * 1980-11-27 1984-02-14 Mitsubishi Denki Kabushiki Kaisha Bushing for gas-insulated electrical equipment
US4670625A (en) * 1984-07-24 1987-06-02 Wood Henry S Electrical insulating bushing with a weather-resistant sheath

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3705281A (en) * 1971-04-29 1972-12-05 Joslyn Mfg & Supply Co Bushing insulator improvements for a dead tank vacuum switch
DE3208358A1 (en) * 1982-03-09 1983-09-22 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Method for producing a cast-resin insulator having capacitive field-control inserts
FR2729785A1 (en) * 1995-01-24 1996-07-26 Gec Alsthom T & D Sa Electrical insulator bushing with improved potential gradient for electrical appts. with metallic enclosure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2961014A1 (en) * 2014-06-23 2015-12-30 Schneider Electric USA, Inc. Compact transformer bushing
US9601912B2 (en) 2014-06-23 2017-03-21 Schneider Electric USA, Inc. Compact transformer bushing

Also Published As

Publication number Publication date
DE69914576D1 (en) 2004-03-11
BR9905897A (en) 2000-08-08
FR2787624A1 (en) 2000-06-23
FR2787624B1 (en) 2001-01-19
TR199903116A2 (en) 2000-07-21
US6255589B1 (en) 2001-07-03
CN1159822C (en) 2004-07-28
CA2292818A1 (en) 2000-06-18
NZ501788A (en) 2001-04-27
ES2214829T3 (en) 2004-09-16
DE69914576T2 (en) 2004-09-16
TR199903116A3 (en) 2000-07-21
CN1258122A (en) 2000-06-28
ATE259092T1 (en) 2004-02-15
EP1014389B1 (en) 2004-02-04
PT1014389E (en) 2004-06-30
AU6529599A (en) 2000-06-22
AU760410B2 (en) 2003-05-15

Similar Documents

Publication Publication Date Title
EP1014389B1 (en) Hermetically sealed feedthrough bushing for external electrical apparatus
EP1004153B1 (en) Electric connection device with fluid insulator
EP0891013B1 (en) Electrical interconnection device between two high voltage and gas insulation cells
EP0143702A2 (en) Inductive differential-pressure transducer
EP2333801A1 (en) Device for the electrical connection of a busbar with an isolated electric feedthrough to a circuit breaker
EP3561978B1 (en) Insulator for a cable end
FR2844101A1 (en) CONNECTOR FOR TWO ELECTRIC POWER CABLES AND CONNECTION COMPRISING SUCH A CONNECTOR
EP1260994B1 (en) Composite insulator with an optical fibre which is guided between a metal fitting and the supporting rod
FR2814275A1 (en) GAS INSULATED CIRCUIT BREAKER WITH AN INTEGRATED ELECTRONIC CURRENT TRANSFORMER
FR2557390A1 (en) Jointing of medium tension paper insulated electric cable
FR2553592A1 (en) END ASSEMBLY FOR HIGH VOLTAGE ELECTRIC CABLE
FR2736461A1 (en) Sealed insulated bushing for gas-filled electrical equipment - has conic female insert of insulating material accepting an insulated conic male part with a conductor passing through its centre
FR2467473A1 (en) CURRENT TRANSFORMER FOR HIGH VOLTAGE INSTALLATION
FR2719420A1 (en) Electrical connector for high voltage cable
EP1116245A1 (en) Current feed-through for medium voltage cell with sealed metal casing
EP0862801A1 (en) Electrical coupling part
FR2610459A1 (en) ELECTRICAL CABLE, IN PARTICULAR ISOLATED TO IMPREGNATED PAPER, AT THE END OF WHICH A CONNECTING DEVICE IS REFLECTED
FR2837615A1 (en) DEVICE FOR CONTROLLING A HIGH ELECTRIC FIELD IN AN INSULATING SYNTHETIC MATERIAL, COMPRISING AT LEAST ONE RIGID ELECTRODE
EP0996210B1 (en) Self-supporting cable head
FR2732522A1 (en) Insulating termination for end of high or very high tension electrical cable
EP0991090B1 (en) Multifunctional monobloc high-voltage electrical connection, with a bushing and an interface for connecting to a fuse and protection device including such an electrical connection
CA3145229A1 (en) Terminal device for a shielded cable with mineral insulation
EP3175525B1 (en) Electrical switchgear with improved fastening means for an insulating support
MXPA99012004A (en) Hermetically sealed feedthrough bushing for external electrical apparatus
FR2711836A1 (en) Sealed penetration (lead-in, feed-through) for an ultra-high-frequency (microwave) coaxial line, forming an accessory support, for a confinement enclosure

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: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20001108

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040204

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040204

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040204

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040204

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040204

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: FRENCH

REF Corresponds to:

Ref document number: 69914576

Country of ref document: DE

Date of ref document: 20040311

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040504

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040504

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040504

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20040513

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20040429

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2214829

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041213

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041231

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041231

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041231

26N No opposition filed

Effective date: 20041105

BERE Be: lapsed

Owner name: *ALSTOM

Effective date: 20041231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050701

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20051212

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051213

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

BERE Be: lapsed

Owner name: *ALSTOM

Effective date: 20041231

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20061214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061214

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20101221

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20111212

Year of fee payment: 13

Ref country code: FR

Payment date: 20120105

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: SCHNEIDER ELECTRIC ENERGY FRANCE, FR

Effective date: 20120806

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20130614

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20121213

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130614

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130830

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121213

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130102