EP0917265B1 - Spark gap device for protecting electric lines and/or electric apparatus against temporary overvoltages - Google Patents

Spark gap device for protecting electric lines and/or electric apparatus against temporary overvoltages Download PDF

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Publication number
EP0917265B1
EP0917265B1 EP19980402794 EP98402794A EP0917265B1 EP 0917265 B1 EP0917265 B1 EP 0917265B1 EP 19980402794 EP19980402794 EP 19980402794 EP 98402794 A EP98402794 A EP 98402794A EP 0917265 B1 EP0917265 B1 EP 0917265B1
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EP
European Patent Office
Prior art keywords
fact
tongues
electrodes
arc
produced
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Expired - Lifetime
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EP19980402794
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German (de)
French (fr)
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EP0917265A1 (en
Inventor
Alain Rousseau
Nicolas Quentin
Mehrdad H. Hassanzade
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Soule Protection Surtensions SA
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Soule Materiel Electrique
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00Overvoltage arresters using spark gaps
    • H01T4/10Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
    • H01T4/14Arcing horns

Definitions

  • the present invention relates to the field of protection of electrical lines and / or electrical appliances against temporary overvoltages.
  • the present invention more specifically relates to a device forming surge arrester with high energy absorption capacity.
  • DE-A-1,924,063 describes a spark gap according to the preamble of claim 1.
  • the present invention now aims to propose new means with high energy absorption capacity and adapted for allow a natural extinction of a stream of continuation.
  • the two tongues are made of deformable material.
  • arc extinction means is provided next to the gap defined between the two electrodes.
  • FIG. 1 to 3 There is shown in Figures 1 to 3 annexed a spark gap which includes a housing 100 housing two tongues 110 which each carry an electrode 150.
  • the housing 100 may be subject to many embodiments.
  • the housing 100 is adapted to allow fixation on a support rail, such as a standard DIN rail.
  • the housing 100 preferably has a shape generally cuboid.
  • the housing 100 preferably has a shape flattened general device comprising on a longitudinal edge 101, a outgrowth 102 whose outline is itself globally cuboid.
  • the housing 100 is advantageously made of material electrically insulating.
  • the housing 100 is made of, or coated with self-extinguishing material, ie a material suitable for generate a gas promoting the extinction of the arc when this material is licked by an electric arc.
  • the tabs 110 are preferably symmetrical with respect to a median plane P perpendicular to the main faces 103, 104 and forming itself plane of symmetry for the outgrowth 102.
  • the tongues 110 are made of electrically driver.
  • each tongue 110 is formed of three sections 112, 114 and 116 generally rectilinear.
  • the first two sections 112 are coplanar and adjacent to the second longitudinal edge 105 of the housing 100, that is to say the one opposite to 102. They are adapted to serve as a connection to lines or electrical equipment to be protected.
  • the second sections 114 converge with each other towards the center of the housing 100, from the inner end of the aforementioned sections 112.
  • third sections 116 extend the second sections 114 and diverge from each other, away from said second sections 114. These third sections 116 point towards the angles of the outgrowth 102, at rest. As a non-limiting example, at rest, the third sections 116 typically make an angle of the order of 60 ⁇ .
  • the third sections 116 each carry an electrode 150, on their surfaces opposite.
  • the electrodes 150 are inclined between they, in the form of dihedron, at rest. More precisely, the electrodes 150 diverge from each other, from the birth point of the arc, that is to say from their end near the arrival of the current.
  • each electrode 150 is formed of a pellet ring attached to the third section of a tongue 110 by all appropriate means, for example by welding, riveting (as illustrated in the appended figures) or any equivalent means.
  • the electrodes 150 must of course be made in one electrically conductive material, resistant to an electric arc, it is say having good holding when subjected to an electric arc.
  • the electrodes 150 may be made of a material with arc extinction, as indicated previously for the case 100.
  • an arc-extinguishing material deposit may be applied directly to the electrodes 150.
  • the spark gap further comprises two rigid supports 160 for the tabs 110. These are preferably rectilinear, parallel to each other and symmetrical with respect to the median plane P supra.
  • the supports 160 may also be made of or coated of arc extinguishing material.
  • the base of the supports 160 is fixed on the second longitudinal edge 105 of the housing 100.
  • summit 162 supports 160 is preferably oblique with respect to the median plane P, according to an obliqueness coinciding with that of the second sections 114, at rest.
  • case 100 illustrated in the appended figures comprises a spark arrester 170, which surrounds the second and third sections 114, 116 and the electrodes 150 and the supports 160.
  • this chimney 170 is formed of two walls 172, 174 planes, parallel to each other, which prolong the side walls of the protrusion 102.
  • the chimney 170 is advantageously made of or coated with extinguishing material arc.
  • the walls 172, 174 are provided at their opposite base to the protrusion 102, cutouts 173 allowing the passage of second sections 114 with freedom of deformation, as one will explain it later.
  • the housing 100 includes vents 106 designed to allow the escape of the gases generated inside the housing 100 under the effect of an electric arc.
  • vents 106 can be provided in the sidewalls of the outgrowth 102, parallel to the median plane P, and perpendicular to the plane longitudinal 101.
  • the two electrodes 150 are placed in the air.
  • This arc is then fed by the current in a row.
  • the formed angle by the two electrodes 150 facilitates the stretching of the upward arc, created by the electrodynamic forces, that is to say in approximation of the protrusion 102 of the housing 100.
  • the tabs 110 are advantageously made of a deformable material under the effect of an arc developed between the electrodes 150.
  • the electrodes 150 are further spread automatically when an electric arc appears between them, which further favors the extinction of the current.
  • the deformation of the tongues 110 may be due to the forces electrodynamics developed during the appearance of such an arc.
  • the reminder of the tongues 110 in the rest position can be obtained thanks to the intrinsic elasticity of the tongues 110 or else by means resilient additional springbacks, such as tared springs, which apply the tabs at the second portions 114, towards their rest position illustrated in Figure 1.
  • the tongues 110 are deformed in spacing under the effect of the heating produced in the tongues 110 following the current passing through them to reach the electrodes . 150.
  • the tongues 110 are preferably adapted to return to the rest position, at room temperature, thanks to their intrinsic properties.
  • the tongues 110 may for example be formed of bimetals sensitive to heat or shape memory material.
  • bimetallic strips or of shape memory material allows to improve the deformation of the tongues 110, of the rest position approach shown in Figure 1, to a position discarded when the appearance of an electric arc illustrated in Figure 2, with recall automatic to the rest position when removing said arc
  • the housing 100 is provided on its inner surface with a deflector of gas 190 placed opposite the interval defined between the two 150. More precisely this deflector 190 is placed on the side electrodes 150 to which is pushed the arc. So according to the mode of particular embodiment illustrated in the accompanying figures, the deflector 190 is placed on the inner surface of the outgrowth 102.
  • the deflector 190 is advantageously made of, or coated with, arc extinguishing material.
  • the electrodes 150 and the supports 160 As described above for the housing 100, the electrodes 150 and the supports 160, such arc extinguishing material is not consumed not but projects a substance that promotes the extinction of the arc.
  • FIG. 4 illustrates a first embodiment on which we find fully the means previously described and which does not differs from this embodiment of Figures 1 to 3 that by the fact that according to Figure 4, the spark gap device further comprises a braid 200 of electrically conductive flexible material, placed in parallel of each tongue 110.
  • the braids 200 are placed between the first sections 112 and the third sections 116 of the tongues 110. 200 braids can be attached to these elements, with electrical contact, by any appropriate means, such as for example by welding or mechanical fixation.
  • the braids 200 directly provide the current flow, from the connection section 112, to the electrodes 150.
  • Such braids 200 have a resistance lower than that of the shape memory or bimetallic alloy constituting the tongues 110 and thus avoid the passage of a large current through the material deformable tongues 110 and therefore avoid a important heating up of these.
  • FIG. 5 to 7 Is shown in Figures 5 to 7 annexed a second mode realization on which there is a housing 100 which houses two rigid supports 1600, two deformable tongues 110 and two electrodes 150.
  • the whole is preferably symmetrical with respect to the median plane P, resting.
  • the supports 1600 are made of electrically conductor, for example copper. They participate in the passage of the current developing the bow.
  • Each support 1600 preferably comprises four sections 1602, 1604, 1606 and 1608.
  • the first two sections 1602 are coplanar and adjacent to the second longitudinal edge 105 of the housing 100, that is to say the one opposite to 102. They are adapted to serve as a connection to lines or electrical equipment to be protected.
  • the second sections 1604 converge with each other towards the center of the housing 100, from the inner end of the aforementioned sections 1602.
  • the third sections 1606 extend the second sections 1604. They are preferably parallel to each other.
  • fourth sections 1608 are coplanar with each other and accommodated in the outgrowth 102. They diverge from one another their connection area on the third sections 1606.
  • the tongues 110 have the general shape of an "L” to two branches 1100 and 1102.
  • a first branch 1100 of the tabs is pressed against the the outer surface of the fourth sections 1608.
  • the first part 1100 of the tongues can be connected to this fourth stretch by all suitable means, for example by welding or riveting in 1609.
  • the second branches 1102 extend parallel to each other, between the two supports 1600.
  • the device illustrated in FIGS. 5 to 7 furthermore comprises a spacer 210 made of electrically insulating material interposed between two tabs 110.
  • the spacer 210 preferably has the shape of a T.
  • the transverse head 212 of this spacer 210 rests on the outer surface of the tongues 110.
  • the core 214 of the spacer 210 is disposed between the tabs 110.
  • the electrodes 150 are placed on the free ends of the second branches 1102, between the second sections 1604.
  • the tongues 110 are made in one deformable material during the appearance of an electric arc, for example under the effect of electrodynamic forces, or even thanks to properties bimetallic or with shape memory, with automatic elastic rest position.
  • the electrodes 150 are removed thanks to the deformability properties of the tongues 110, to promote the extinction of the arc by stretching.
  • the tongues 110 bring back automatically the electrodes 150 in the illustrated rest position in Figure 5.
  • Electrodes 150 come then rest on the 1604 sections of the supports 1600 as we see it in figure 7.
  • the supports 1600 ensure the current flow to the electrodes 150, in parallel with the tongues 110. This provision preserves the 110 tabs. supports 160 then play a role comparable to that of the braids 200 according to the embodiment of Figure 4.
  • the deflector 190 placed opposite the defined interval between the electrodes 150 is formed of a crenellated plate.
  • This plate 190 thus forms a baffle that can proceed essentially by mechanical effect, ie elongation of the arc, to participate in the extinction of it.
  • the plate 190 is also made of Self-extinguishing material, to enhance this arc extinguishing effect.
  • the placed means next to the interval defined between the electrodes 150, to participate in extinction of the arc can be formed by magnetic means, by example permanent magnet or electric coil, proceeding essentially by lengthening it.
  • spark gap devices allow to cut intensities up to a few kA to at least about 50 kA, of 10/350 form.

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  • Arc-Extinguishing Devices That Are Switches (AREA)

Description

: La présente invention concerne le domaine des dispositifs de protection de lignes électriques et/ou d'appareils électriques contre des surtensions temporaires.The present invention relates to the field of protection of electrical lines and / or electrical appliances against temporary overvoltages.

La présente invention concerne plus précisément encore un dispositif formant parafoudre à forte capacité d'absorption d'énergie.The present invention more specifically relates to a device forming surge arrester with high energy absorption capacity.

La plupart des dispositifs de protection contre les surtensions jusqu'ici proposés sont formés à base d'une varistance ou d'un éclateur, voire d'une combinaison de ceux-ci.Most surge protection devices heretofore proposed are based on a varistor or spark gap, even a combination of these.

De nos jours seuls les éclateurs sont compatibles avec un encombrement réduit.Nowadays only the spark gaps are compatible with a small footprint.

Cependant après amorçage de l'éclateur, un courant de suite très difficile à éteindre, est souvent généré, surtout après absorption d'une énergie de foudre importante.However after priming the spark gap, a current of very difficult to extinguish, is often generated, especially after absorption of significant lightning energy.

Différentes solutions ont déjà été proposées pour tenter de remédier à cet inconvénient.Different solutions have already been proposed to try to remedy to this disadvantage.

Sur ce point on pourra par exemple se référer aux documents :

  • FR-A-2 293 050 qui décrit un dispositif de séparation d'arc comprenant deux cornes équipées en extrémité de chambre d'extinction d'arc sous la forme d'un tube à fentes dont les parois sont réalisées en matériau apte à libérer un gaz pour exercer une action désionisante sur un trajet d'arc, et dans lequel sont placées des électrodes auxiliaires hélicoïdales ou annulaires, .
  • FR-A- 676 756 qui décrit un dispositif de protection comprenant deux électrodes maintenues écartées l'une de l'autre au moyen d'une plaque isolante perforée et dans lequel l'interruption d'un courant est assurée au moyen d'au moins un coupe-circuit à fusible,
  • DE-A-624431 qui décrit un éclateur comprenant deux cornes formées par une alternance de zones électriquement conductrices, par exemple en cuivre, et de zones peu conductrices, par exemple en carbone ou en nickel chrome,
  • US-A-1483540 qui décrit un éclateur comprenant des cornes revêtues d'un oxyde conducteur adapté pour être transformé en un oxyde différent de plus grande résistance électrique, par une élévation de température,
  • DE-A-184505 qui décrit un éclateur comprenant deux cornes dont la base est formée d'un matériau bon conducteur et dont les extrémités sont formées en un matériau plus résistant,
  • DE-A-2 513 242 qui décrit un éclateur comprenant deux cornes équipées d'un boítier ajouré qui contient un matériau susceptible de vaporisation,
  • US-A-2 608 599 qui décrit un éclateur comprenant deux électrodes réalisées en un matériau susceptible de générer un gaz sous l'effet d'un arc et qui divergent entre elles de sorte que le gaz généré souffle ledit arc, et
  • EP-A-0 062 816 qui décrit un éclateur composé de deux cornes constituées ou enrobées de matières d'extinction d'arcs.
On this point we can for example refer to the documents:
  • FR-A-2 293 050 which describes an arc separation device comprising two horns equipped at the end of arc extinguishing chamber in the form of a slotted tube whose walls are made of material able to release a gas for exerting a deionizing action on an arc path, and in which helical or annular auxiliary electrodes are placed,.
  • FR-A-676 756 which describes a protection device comprising two electrodes held apart from one another by means of a perforated insulating plate and in which the interruption of a current is ensured by means of at least one a fuse cutout,
  • DE-A-624431 which describes a spark gap comprising two horns formed by an alternation of electrically conductive zones, for example of copper, and of low-conductive zones, for example of carbon or nickel-chromium,
  • US-A-1483540 which discloses a spark gap comprising horns coated with a conductive oxide adapted to be converted into a different oxide of greater electrical resistance, by a rise in temperature,
  • DE-A-184505 which discloses a spark gap comprising two horns whose base is formed of a good conducting material and whose ends are formed of a more resistant material,
  • DE-A-2513242 which describes a spark gap comprising two horns equipped with a perforated housing which contains a material capable of vaporization,
  • US-A-2 608 599 which discloses a spark gap comprising two electrodes made of a material capable of generating a gas under the effect of an arc and which diverge from each other so that the gas generated blows said arc, and
  • EP-A-0 062 816 which discloses a spark gap consisting of two horns constituted or coated with arc extinguishing materials.

Le document DE-A-1 924 063 décrit un éclateur selon le préambule de la revendication 1.DE-A-1,924,063 describes a spark gap according to the preamble of claim 1.

Néanmoins aucune de ces solutions connues ne donne totalement satisfaction, notamment sous fort courant.Nevertheless, none of these known solutions gives totally satisfaction, especially under strong current.

Ainsi il faut en général faire fonctionner les protections de réseau, pour assurer la coupure du courant de suite, ce qui n'est pas bon pour la continuité du service.Thus, it is generally necessary to operate the network protections, to ensure the cut of the current away, which is not good for the continuity of service.

La présente invention a maintenant pour but de proposer de nouveaux moyens à forte capacité d'absorption d'énergie et adaptés pour permettre une extinction naturelle d'un courant de suite.The present invention now aims to propose new means with high energy absorption capacity and adapted for allow a natural extinction of a stream of continuation.

Ce but est atteint dans le cadre de la présente invention grâce à un éclateur conforme à la revendication 1 annexée.This object is achieved in the context of the present invention by means of a spark gap according to claim 1 attached.

Selon une caractéristique avantageuse de la présente invention, les deux languettes sont réalisées en matériau déformable.According to an advantageous characteristic of the present invention, the two tongues are made of deformable material.

Selon une autre caractéristique avantageuse de la présente invention, il est prévu des moyens d'extinction d'arc en regard de l'intervalle défini entre les deux électrodes. According to another advantageous characteristic of this invention, arc extinction means is provided next to the gap defined between the two electrodes.

: D'autres caractéristiques, buts et avantages de la présente invention apparaítront à la lecture de la description détaillée qui va suivre et en regard des dessins annexés, donnés à titre d'exemples non limitatifs et sur lesquels :

  • la figure 1 représente une vue en coupe longitudinale d'un dispositif de protection, en position de repos,
  • la figure 2 représente une vue similaire du même dispositif dans une seconde position, après déformation des languettes support d'électrodes sous l'effet d'un arc,
  • la figure 3 représente une vue en coupe transversale du même dispositif,
  • la figure 4 représente une vue en coupe longitudinale d'un dispositif conforme à un premier mode de réalisation de la présente invention, en position de repos,
  • la figure 5 représente une vue en coupe longitudinale d'un dispositif conforme à un second mode de réalisation de la présente invention, en position de repos, et
  • les figures 6 et 7 représentent des vues similaires du même dispositif respectivement dans des positions de travail à faible courant et à fort courant.
Other features, objects and advantages of the present invention will appear on reading the detailed description which follows and with reference to the appended drawings, given as non-limiting examples and in which:
  • FIG. 1 represents a longitudinal sectional view of a protection device, in the rest position,
  • FIG. 2 represents a similar view of the same device in a second position, after deformation of the electrode support tongues under the effect of an arc,
  • FIG. 3 represents a cross-sectional view of the same device,
  • FIG. 4 represents a longitudinal sectional view of a device according to a first embodiment of the present invention, in the rest position,
  • FIG. 5 represents a longitudinal sectional view of a device according to a second embodiment of the present invention, in the rest position, and
  • Figures 6 and 7 show similar views of the same device respectively in low current and high current working positions.

On aperçoit sur les figures 1 à 3 annexées un éclateur qui comprend un boitier 100 logeant deux languettes 110 qui portent chacune une électrode 150.There is shown in Figures 1 to 3 annexed a spark gap which includes a housing 100 housing two tongues 110 which each carry an electrode 150.

Le boítier 100 peut faire l'objet de nombreux modes de réalisation.The housing 100 may be subject to many embodiments.

De préférence le boítier 100 est adapté pour permettre une fixation sur un rail support, tel qu'un rail DIN normalisé.Preferably the housing 100 is adapted to allow fixation on a support rail, such as a standard DIN rail.

A cette fin le boítier 100 a de préférence une forme généralement parallélépipédique.For this purpose the housing 100 preferably has a shape generally cuboid.

Plus précisément, le boítier 100 a de préférence une forme générale aplatie comprenant sur un bord longitudinal 101, une excroissance 102 dont le contour est lui même globalement parallélépipédique. More specifically, the housing 100 preferably has a shape flattened general device comprising on a longitudinal edge 101, a outgrowth 102 whose outline is itself globally cuboid.

: Les deux faces principales du boítier 100 sont visibles sur la figure 3, sous les références 103 et 104.: The two main faces of the housing 100 are visible in the figure 3, under the references 103 and 104.

Le boítier 100 est avantageusement réalisé en matériau électriquement isolant. De préférence le boítier 100 est réalisé en, ou revêtu de, matériau auto-extinguible, c'est à dire un matériau apte à générer un gaz favorisant l'extinction de l'arc quand ce matériau est lèché par un arc électrique.The housing 100 is advantageously made of material electrically insulating. Preferably the housing 100 is made of, or coated with self-extinguishing material, ie a material suitable for generate a gas promoting the extinction of the arc when this material is licked by an electric arc.

Les languettes 110 sont de préférence symétriques par rapport à un plan médian P perpendiculaire aux faces principales 103, 104 et formant lui même plan de symétrie pour l'excroissance 102.The tabs 110 are preferably symmetrical with respect to a median plane P perpendicular to the main faces 103, 104 and forming itself plane of symmetry for the outgrowth 102.

Les languettes 110 sont réalisées en matériau électriquement conducteur.The tongues 110 are made of electrically driver.

Selon le mode de réalisation particulier et non limitatif illustré sur les figures 1 à 3, chaque languette 110 est formé de trois tronçons 112, 114 et 116 globalement rectilignes.According to the particular and nonlimiting embodiment illustrated on the 1 to 3, each tongue 110 is formed of three sections 112, 114 and 116 generally rectilinear.

Les deux premiers tronçons 112 sont coplanaires et adjacents au second bord longitudinal 105 du boítier 100, c'est à dire celui opposé à l'excroissance 102. Ils sont adaptés pour servir de raccordement aux lignes ou aux appareillages électriques à protéger.The first two sections 112 are coplanar and adjacent to the second longitudinal edge 105 of the housing 100, that is to say the one opposite to 102. They are adapted to serve as a connection to lines or electrical equipment to be protected.

Les seconds tronçons 114 convergent entre eux vers le centre du boítier 100, à partir de l'extrémité interne des tronçons 112 précités.The second sections 114 converge with each other towards the center of the housing 100, from the inner end of the aforementioned sections 112.

Enfin les troisièmes tronçons 116 prolongent les seconds tronçons 114 et divergent entre eux, en éloignement desdits seconds tronçons 114. Ces troisièmes tronçons 116 pointent en direction des angles de l'excroissance 102, au repos. A titre d'exemple non limitatif, au repos, les troisièmes tronçons 116 font typiquement entre eux un angle de l'ordre de 60□.Finally the third sections 116 extend the second sections 114 and diverge from each other, away from said second sections 114. These third sections 116 point towards the angles of the outgrowth 102, at rest. As a non-limiting example, at rest, the third sections 116 typically make an angle of the order of 60 □.

Les troisièmes tronçons 116 portent chacun une électrode 150, sur leurs surfaces en regard. Ainsi les électrodes 150 sont inclinées entre elles, en forme de dièdre, au repos. Plus précisément encore, les électrodes 150 divergent entre elles, à partir du point de naissance de l'arc, c'est à dire à partir de leur extrémité proche de l'arrivée du courant. The third sections 116 each carry an electrode 150, on their surfaces opposite. Thus the electrodes 150 are inclined between they, in the form of dihedron, at rest. More precisely, the electrodes 150 diverge from each other, from the birth point of the arc, that is to say from their end near the arrival of the current.

De préférence chaque électrode 150 est formée d'une pastille circulaire fixée sur le troisième tronçon d'une languette 110 par tous moyens appropriés, par exemple par soudure, rivetage (comme illustré sur les figures annexées) ou tous moyens équivalents.Preferably each electrode 150 is formed of a pellet ring attached to the third section of a tongue 110 by all appropriate means, for example by welding, riveting (as illustrated in the appended figures) or any equivalent means.

Les électrodes 150 doivent bien entendu être réalisées en un matériau électriquement conducteur, résistant à un arc électrique, c'est à dire présentant une bonne tenue lorsqu'il est soumis à un arc électrique.The electrodes 150 must of course be made in one electrically conductive material, resistant to an electric arc, it is say having good holding when subjected to an electric arc.

Les électrodes 150 peuvent être réalisées en un matériau à extinction d'arc, comme indiqué précédemment pour le boítier 100.The electrodes 150 may be made of a material with arc extinction, as indicated previously for the case 100.

Selon une variante, un dépôt en matériau à extinction d'arc peut être appliqué directement sur les électrodes 150.According to one variant, an arc-extinguishing material deposit may be applied directly to the electrodes 150.

Bien entendu la géométrie des languettes 110 et électrodes 150 illustrées sur les figures annexées ne doit en aucune façon être considérée comme limitative.Of course the geometry of the tongues 110 and electrodes 150 illustrated in the attached figures should in no way be considered as limiting.

On notera également à l'examen des figures 1 à 3 que l'éclateur comprend en outre deux supports rigides 160 pour les languettes 110. Ceux-ci sont de préférence rectilignes, parallèles entre eux et symétriques par rapport au plan médian P précité.It will also be noted on examining FIGS. 1 to 3 that the spark gap further comprises two rigid supports 160 for the tabs 110. These are preferably rectilinear, parallel to each other and symmetrical with respect to the median plane P supra.

Les supports 160 peuvent également être réalisés en, ou revêtus de, matériau à extinction d'arc.The supports 160 may also be made of or coated of arc extinguishing material.

La base des supports 160 est fixée sur le second bord longitudinal 105 du boítier 100.The base of the supports 160 is fixed on the second longitudinal edge 105 of the housing 100.

Leur sommet 162 sert d'appui au second tronçon 114 d'une languette associée 110, au voisinage de la zone de liaison entre les seconds et troisièmes tronçons 114/116. A cette fin le sommet 162 des supports 160 est de préférence oblique par rapport au plan médian P, selon un oblicité qui coïncide avec celle des seconds tronçons 114, au repos.Their top 162 serves as support for the second section 114 of a associated tongue 110, in the vicinity of the connection zone between the second and third sections 114/116. To this end, the summit 162 supports 160 is preferably oblique with respect to the median plane P, according to an obliqueness coinciding with that of the second sections 114, at rest.

En outre le boitier 100 illustré sur les figures annexées comprend une cheminée pare-étincelles 170, qui entoure les seconds et troisièmes tronçons 114, 116 ainsi que les électrodes 150 et les supports 160.In addition, the case 100 illustrated in the appended figures comprises a spark arrester 170, which surrounds the second and third sections 114, 116 and the electrodes 150 and the supports 160.

De préférence cette cheminée 170 est formée de deux parois principales 172, 174 planes, parallèles entre elles, qui prolongent les parois latérales de l'excroissance 102. La cheminée 170 est avantageusement réalisée en, ou revêtue de, matériau à extinction d'arc.Preferably this chimney 170 is formed of two walls 172, 174 planes, parallel to each other, which prolong the side walls of the protrusion 102. The chimney 170 is advantageously made of or coated with extinguishing material arc.

Bien entendu les parois 172, 174 sont munies à leur base opposée à l'excroissance 102, de découpes 173 autorisant le passage des seconds tronçons 114 avec liberté de déformation, comme on l'expliquera par la suite.Of course the walls 172, 174 are provided at their opposite base to the protrusion 102, cutouts 173 allowing the passage of second sections 114 with freedom of deformation, as one will explain it later.

En outre le boítier 100 comporte des évents 106 conçus pour permettre l'échappement des gaz générés à l'intérieur du boítier 100 sous l'effet d'un arc électrique. A titre d'exemple non limitatif, de tels évents peuvent être prévus dans les parois latérales de l'excroissance 102, parallèles au plan médian P, et perpendiculaires au plan longitudinal 101.In addition, the housing 100 includes vents 106 designed to allow the escape of the gases generated inside the housing 100 under the effect of an electric arc. By way of non-limiting example, such vents can be provided in the sidewalls of the outgrowth 102, parallel to the median plane P, and perpendicular to the plane longitudinal 101.

Ainsi, au repos, les deux électrodes 150 sont placées dans l'air.Thus, at rest, the two electrodes 150 are placed in the air.

Le fonctionnement du dispositif éclateur qui vient d'être décrit est essentiellement le suivant.The operation of the spark gap device which has just been described is essentially the next.

En cas de surtension entre les bornes d'une ligne ou d'un appareil à protéger, muni d'un tel dispositif de protection connecté en parallèle, un amorçage se produit entre les électrodes 150.In the event of an overvoltage between the terminals of a line or protect, provided with such a protective device connected in parallel, a priming occurs between the electrodes 150.

Cet arc est ensuite alimenté par le courant de suite. L'angle formé par les deux électrodes 150 facilite l'étirement de l'arc vers le haut, créé par les forces électrodynamiques, c'est à dire en rapprochement de l'excroissance 102 du boitier 100.This arc is then fed by the current in a row. The formed angle by the two electrodes 150 facilitates the stretching of the upward arc, created by the electrodynamic forces, that is to say in approximation of the protrusion 102 of the housing 100.

Par conséquent la résistance de l'arc augmente et entraíne une diminution du courant de suite et favorise ainsi son extinction.Therefore the resistance of the arc increases and causes a decreasing the flow of continuation and thus promotes its extinction.

En outre les languettes 110 sont avantageusement réalisées en un matériau déformable sous l'effet d'un arc développé entre les électrodes 150. Ainsi les électrodes 150 sont de plus écartées automatiquement lorsqu'un arc électrique apparait entre elles, ce qui favorise encore l'extinction du courant de suite.In addition the tabs 110 are advantageously made of a deformable material under the effect of an arc developed between the electrodes 150. Thus the electrodes 150 are further spread automatically when an electric arc appears between them, which further favors the extinction of the current.

On aperçoit ainsi à l'examen comparé des figures 1 et 2, que sous l'effet d'un arc électrique développé entre les électrodes 150, l'écartement entre la base des électrodes 150 passe d'une valeur faible e1 au repos (voir figure 1) à une valeur e2 beaucoup plus élevée lors de l'apparition d'un arc électrique (voir figure 2).We can thus see in the comparison of Figures 1 and 2, that under the effect of an electric arc developed between the electrodes 150, the spacing between the base of the electrodes 150 goes from a low value e1 at rest (see Figure 1) at a much higher e2 value when the appearance of an electric arc (see Figure 2).

Eventuellement la déformation des languettes 110 (écartement lors de l'apparition d'un arc électrique) peut être due aux forces électrodynamiques développées lors de l'apparition d'un tel arc. Le rappel des languettes 110 en position de repos peut être obtenu grâce à l'élasticité intrinsèque des languettes 110 ou encore grâce à des moyens de rappel additionnels élastiques, tels que des ressorts tarés, qui sollicitent les languettes au niveau des seconds tronçons 114, vers leur position de repos illustrée sur la figure 1.Possibly the deformation of the tongues 110 (spacing when the appearance of an electric arc) may be due to the forces electrodynamics developed during the appearance of such an arc. The reminder of the tongues 110 in the rest position can be obtained thanks to the intrinsic elasticity of the tongues 110 or else by means resilient additional springbacks, such as tared springs, which apply the tabs at the second portions 114, towards their rest position illustrated in Figure 1.

Cependant de préférence, les languettes 110 sont déformées en écartement sous l'effet de l'échauffement produit dans les languettes 110 suite au courant traversant celles-ci pour atteindre les électrodes . 150.However, preferably, the tongues 110 are deformed in spacing under the effect of the heating produced in the tongues 110 following the current passing through them to reach the electrodes . 150.

Et par ailleurs les languettes 110 sont de préférence adaptées pour revenir en position de repos, à température ambiante, grâce à leurs propriétés intrinsèques.And, moreover, the tongues 110 are preferably adapted to return to the rest position, at room temperature, thanks to their intrinsic properties.

A cette fin, les languettes 110 peuvent par exemple être formées de bilames sensibles à la chaleur ou de matériau à mémoire de forme.For this purpose, the tongues 110 may for example be formed of bimetals sensitive to heat or shape memory material.

L'utilisation de bilames ou de matériau à mémoire de forme permet d'améliorer la déformation des languettes 110, de la position de repos rapprochée illustrée sur la figure 1, vers une position écartée lors de l'apparition d'un arc électrique illustrée sur la figure 2, avec rappel automatique vers la position de repos lors de la suppression dudit arcThe use of bimetallic strips or of shape memory material allows to improve the deformation of the tongues 110, of the rest position approach shown in Figure 1, to a position discarded when the appearance of an electric arc illustrated in Figure 2, with recall automatic to the rest position when removing said arc

. On notera que la déformation des languettes 110 est opérée essentiellement au niveau des seconds tronçons 114 des languettes 110, comme on le voit à l'examen comparé des figures 1 et 2.. Note that the deformation of the tongues 110 is operated essentially at the level of the second sections 114 of the tabs 110, as seen in the comparison of Figures 1 and 2.

Par ailleurs comme on le voit sur les figures annexées, de préférence le boitier 100 est muni sur sa surface interne, d'un déflecteur de gaz 190 placé en regard de l'intervalle défini entre les deux électrodes 150. Plus précisément ce déflecteur 190 est placé du côté des électrodes 150 vers lequel est poussé l'arc. Ainsi selon le mode de réalisation particulier illustré sur les figures annexées, le déflecteur 190 est placé sur la surface interne de l'excroissance 102.Moreover, as can be seen in the attached figures, preferably the housing 100 is provided on its inner surface with a deflector of gas 190 placed opposite the interval defined between the two 150. More precisely this deflector 190 is placed on the side electrodes 150 to which is pushed the arc. So according to the mode of particular embodiment illustrated in the accompanying figures, the deflector 190 is placed on the inner surface of the outgrowth 102.

Le déflecteur 190 est réalisé avantageusement en, ou revêtu de, matériau à extinction d'arc.The deflector 190 is advantageously made of, or coated with, arc extinguishing material.

Comme décrit précédemment pour le boítier 100, les électrodes 150 et les supports 160, un tel matériau à extinction d'arc ne se consume pas mais projette une substance qui favorise l'extinction de l'arc.As described above for the housing 100, the electrodes 150 and the supports 160, such arc extinguishing material is not consumed not but projects a substance that promotes the extinction of the arc.

On a illustré sur la figure 4 un premier mode de réalisation sur laquelle on retrouve intégralement les moyens précédemment décrits et qui ne se distingue de ce mode de réalisation des figures 1 à 3 que par le fait que selon la figure 4, le dispositif éclateur comporte en outre une tresse 200 en matériau souple électriquement conducteur, placé en parallèle de chaque languette 110.FIG. 4 illustrates a first embodiment on which we find fully the means previously described and which does not differs from this embodiment of Figures 1 to 3 that by the fact that according to Figure 4, the spark gap device further comprises a braid 200 of electrically conductive flexible material, placed in parallel of each tongue 110.

Plus précisément les tresses 200 sont placées entre les premiers tronçons 112 et les troisièmes tronçons 116 des languettes 110. Les tresses 200 peuvent être fixées à ces éléments, avec contact électrique, par tous moyens appropriés, tels que par exemple par soudure ou fixation mécanique.More precisely, the braids 200 are placed between the first sections 112 and the third sections 116 of the tongues 110. 200 braids can be attached to these elements, with electrical contact, by any appropriate means, such as for example by welding or mechanical fixation.

Ainsi en cas de surtension, les tresses 200 assurent directement le passage du courant, à partir du tronçon de raccordement 112, vers les électrodes 150.Thus, in case of overvoltage, the braids 200 directly provide the current flow, from the connection section 112, to the electrodes 150.

De telles tresses 200 possèdent une résistance inférieure à celle de l'alliage à mémoire de forme ou bilame composant les languettes 110 et évitent ainsi le passage d'un courant important à travers le matériau déformable des languettes 110 et par conséquent évitent un échauffement important de celles-ci.Such braids 200 have a resistance lower than that of the shape memory or bimetallic alloy constituting the tongues 110 and thus avoid the passage of a large current through the material deformable tongues 110 and therefore avoid a important heating up of these.

On a représenté sur les figures 5 à 7 annexées un second mode de réalisation sur laquelle on retrouve un boítier 100 qui loge deux supports rigides 1600, deux languettes déformables 110 et deux électrodes 150.Is shown in Figures 5 to 7 annexed a second mode realization on which there is a housing 100 which houses two rigid supports 1600, two deformable tongues 110 and two electrodes 150.

Le tout est de préférence symétrique par rapport au plan médian P, au repos. The whole is preferably symmetrical with respect to the median plane P, resting.

Les supports 1600 sont réalisés en matériau électriquement conducteur, par exemple en cuivre. Ils participent au passage du courant développant l'arc.The supports 1600 are made of electrically conductor, for example copper. They participate in the passage of the current developing the bow.

Chaque support 1600 comprend de préférence quatre tronçons 1602, 1604, 1606 et 1608.Each support 1600 preferably comprises four sections 1602, 1604, 1606 and 1608.

Les deux premiers tronçons 1602 sont coplanaires et adjacents au second bord longitudinal 105 du boítier 100, c'est à dire celui opposé à l'excroissance 102. Ils sont adaptés pour servir de raccordement aux lignes ou aux appareillages électriques à protéger.The first two sections 1602 are coplanar and adjacent to the second longitudinal edge 105 of the housing 100, that is to say the one opposite to 102. They are adapted to serve as a connection to lines or electrical equipment to be protected.

Les seconds tronçons 1604 convergent entre eux vers le centre du boitier 100, à partir de l'extrémité interne des tronçons 1602 précités.The second sections 1604 converge with each other towards the center of the housing 100, from the inner end of the aforementioned sections 1602.

Les troisièmes tronçons 1606 prolongent les seconds tronçons 1604. Ils sont de préférence parallèles entre eux.The third sections 1606 extend the second sections 1604. They are preferably parallel to each other.

Enfin les quatrièmes tronçons 1608 sont coplanaires entre eux et logés dans l'excroissance 102. Ils divergent entre eux en éloignement de leur zone de raccordement sur les troisièmes tronçons 1606.Finally the fourth sections 1608 are coplanar with each other and accommodated in the outgrowth 102. They diverge from one another their connection area on the third sections 1606.

Les languettes 110 ont elles la forme générale d'un "L" à deux branches 1100 et 1102.The tongues 110 have the general shape of an "L" to two branches 1100 and 1102.

Elles sont placées sur l'intérieur des supports 1600.They are placed on the inside of the supports 1600.

Une première branche 1100 des languettes est plaquée contre la surface extérieure des quatrièmes tronçons 1608. La première branche 1100 des languettes peut être reliée à ce quatrième tronçon par tous moyens appropriés, par exemple par soudure ou par rivetage en 1609.A first branch 1100 of the tabs is pressed against the the outer surface of the fourth sections 1608. The first part 1100 of the tongues can be connected to this fourth stretch by all suitable means, for example by welding or riveting in 1609.

Les secondes branches 1102 s'étendent parallèlement entre elles, entre les deux supports 1600.The second branches 1102 extend parallel to each other, between the two supports 1600.

Le dispositif illustré sur les figures 5 à 7 comprend en outre une entretoise 210 en matériau électriquement isolant intercalé entre les deux languettes 110.The device illustrated in FIGS. 5 to 7 furthermore comprises a spacer 210 made of electrically insulating material interposed between two tabs 110.

L'entretoise 210 a avantageusement la forme d'un T.The spacer 210 preferably has the shape of a T.

La tète transversale 212 de cette entretoise 210 repose sur la surface externe des languettes 110.The transverse head 212 of this spacer 210 rests on the outer surface of the tongues 110.

L'âme 214 de l'entretoise 210 est disposée entre les languettes 110. The core 214 of the spacer 210 is disposed between the tabs 110.

: Les électrodes 150 sont placées sur les extrémités libres des secondes branches 1102, entre les seconds tronçons 1604.: The electrodes 150 are placed on the free ends of the second branches 1102, between the second sections 1604.

Par ailleurs là encore, les languettes 110 sont réalisées en un matériau déformable lors de l'apparition d'un arc électrique, par exemple sous l'effet des forces électrodynamiques, voire grâce à des propriétés bilame ou à mémoire de forme, avec rappel élastique automatique en position de repos.Moreover, again, the tongues 110 are made in one deformable material during the appearance of an electric arc, for example under the effect of electrodynamic forces, or even thanks to properties bimetallic or with shape memory, with automatic elastic rest position.

Le fonctionnement du dispositif illustré sur les figures 5 à 7 est le suivant.The operation of the device illustrated in FIGS. 5 to 7 is the next.

Au repos les languettes 110 sont plaquées contre l'entretoise isolante 210. Celle-ci définit ainsi l'intervalle d'air entre les électrodes 150 et donc une tension d'amorçage relativement constante.At rest the tongues 110 are pressed against the spacer insulation 210. This defines the air gap between the electrodes 150 and therefore a relatively constant boot voltage.

Lors de l'apparition d'une surtension à faible énergie correspondant à un courant d'amplitude modérée entre les supports 1600 un amorçage se produit entre les électrodes 150 et un arc est développé entre celles-ci.At the occurrence of a corresponding low energy surge at a current of moderate amplitude between the supports 1600 a priming occurs between the electrodes 150 and an arc is developed between them.

Comme on le voit à l'examen comparé des figures 1 et 2, les électrodes 150 sont écartées grâce aux propriétés de déformabilité des languettes 110, pour favoriser l'extinction de l'arc par étirement.As can be seen from the comparative examination of Figures 1 and 2, the electrodes 150 are removed thanks to the deformability properties of the tongues 110, to promote the extinction of the arc by stretching.

Après extinction de l'arc, les languettes 110 ramènent automatiquement les électrodes 150 dans la position de repos illustrée sur la figure 5.After extinction of the arc, the tongues 110 bring back automatically the electrodes 150 in the illustrated rest position in Figure 5.

Cependant en cas de surtension à forte énergie, et donc de fort courant entre les électrodes 150, les forces électrodynamiques et/ou l'échauffement des languettes 110 sont supérieurs de sorte que la déformation des languettes 110 est plus prononcée. Les électrodes 150 viennent alors reposer sur les tronçons 1604 des supports 1600 comme on le voit sur la figure 7.However in case of high energy surge, and therefore of strong current between the electrodes 150, the electrodynamic forces and / or the heating of the tongues 110 are greater so that the deformation of the tongues 110 is more pronounced. Electrodes 150 come then rest on the 1604 sections of the supports 1600 as we see it in figure 7.

Dans cette position provisoire, les supports 1600 assurent le passage du courant vers les électrodes 150, en parallèle des languettes 110. Cette disposition permet de préserver les languettes 110. Les supports 160 jouent alors un rôle comparable à celui des tresses 200 selon le mode de réalisation de la figure 4. In this temporary position, the supports 1600 ensure the current flow to the electrodes 150, in parallel with the tongues 110. This provision preserves the 110 tabs. supports 160 then play a role comparable to that of the braids 200 according to the embodiment of Figure 4.

On notera par ailleurs que selon le mode de réalisation illustré sur les figures 5 à 7, le déflecteur 190 placé en regard de l'intervalle défini entre les électrodes 150, est formé d'une plaque crénelée.Note also that according to the embodiment illustrated on FIGS. 5 to 7, the deflector 190 placed opposite the defined interval between the electrodes 150, is formed of a crenellated plate.

Cette plaque 190 forme ainsi une chicane qui peut procéder essentiellement par effet mécanique, c'est à dire allongement de l'arc, pour participer à l'extinction de celui-ci.This plate 190 thus forms a baffle that can proceed essentially by mechanical effect, ie elongation of the arc, to participate in the extinction of it.

Cependant de préférence, la plaque 190 est également réalisée en matériau auto-extinguible, afin de renforcer cet effet d'extinction d'arc.However, preferably, the plate 190 is also made of Self-extinguishing material, to enhance this arc extinguishing effect.

Selon encore une autre variante de réalisation, les moyens placés en regard de l'intervalle défini entre les électrodes 150, pour participer à l'extinction de l'arc, peuvent être formés de moyens magnétiques, par exemple aimant permanent ou bobine électrique, procédant essentiellement par allongement de celui-ci.According to yet another variant embodiment, the placed means next to the interval defined between the electrodes 150, to participate in extinction of the arc, can be formed by magnetic means, by example permanent magnet or electric coil, proceeding essentially by lengthening it.

Les dispositifs éclateurs conformes à la présente invention, permettent de couper des intensités pouvant atteindre de quelques kA à au moins environ 50 kA, de forme 10/350.The spark gap devices according to the present invention, allow to cut intensities up to a few kA to at least about 50 kA, of 10/350 form.

Claims (25)

  1. Spark gap device for the protection of electrical lines and/or electrical apparatus against temporary overvoltages, comprising two electrodes (150) carried by respective tongues (110), at least one of the said tongues (110) being produced from deformable materials so that the distance between the electrodes (150) is extended when an arc develops between them, and characterised by the fact that it comprises means (200; 1600) able to provide passage of the current, in parallel with the tongues (110) between connection terminals (112; 1602) and the electrodes (150), at least after deformation of the tongues (110).
  2. Device according to Claim 1, characterised by the fact that the two tongues (110) are produced from deformable material.
  3. Device according to one of Claims 1 or 2, characterised by the fact that it comprises arc extinction means (190) facing the gap defined between the two electrodes (150).
  4. Device according to one of Claims 1 to 3, characterised by the fact that the housing (100) is produced from, or clad with, self-extinguishing material.
  5. Device according to one of Claims 1 to 4, characterised by the fact that the electrodes (150) are inclined with respect to each other in the form of a dihedron at rest.
  6. Device according to one of Claims 1 to 5, characterised by the fact that the electrodes (150) are produced from, or clad with, an arc extinction material.
  7. Device according to one of Claims 1 to 6, characterised by the fact that it also comprises two rigid supports (160) for the tongues (110) at rest.
  8. Device according to Claim 7, characterised by the fact that the supports (160) are produced from, or clad wi th, arc extinction material.
  9. Device according to one of Claims 1 to 8, characterised by the fact that it comprises a spark extinction chamber (170) which surrounds at least the electrodes (150).
  10. Device according to Claim 9, characterised by the fact that the chamber (170) is formed from, or clad with, arc extinction material.
  11. Device according to one of Claims 1 to 10, characterised by the fact that the housing (100) comprises vents (106) designed to allow the escape of the gases generated inside the housing (100) under the effect of an electric arc.
  12. Device according to one of Claims 1 to 11, characterised by the fact that the tongues (110) are adapted so as to be deformed under the effect of electrodynamic forces developed during the appearance of an arc.
  13. Device according to one of Claims 1 to 12, characterised by the fact that the tongues (110) are adapted so as to be deformed in separation under the effect of the heating produced by the tongues (110) following the current passing through them in order to reach the electrodes (150).
  14. Device according to one of Claims 1 to 13, characterised by the fact that the tongues (110) are adapted to return to the idle position, at ambient temperature, by virtue of their intrinsic properties.
  15. Device according to one of Claims 1 to 14, characterised by the fact that the tongues (110) are formed from bimetallic strips sensitive to heat.
  16. Device according to one of Claims 1 to 15, characterised by the fact that the tongues (110) are formed by shape memory material.
  17. Device according to one of Claims 1 to 16, characterised by the fact that it comprises a gas deflector (190) placed opposite the gap defined between the two electrodes (150), on the side of the electrodes (150) towards which the arc is pushed.
  18. Device according to Claim 17, characterised by the fact that the deflector (190) is produced from, or clad with, arc extinction material.
  19. Device according to one of Claims 1 to 18, characterised by the fact that the means able to provide the passage of the current consist of a braid (200) made from electrically conductive flexible material, placed in parallel with each tongue (110).
  20. Device according to one of Claims 1 to 19, characterised by the fact that it comprises a spacer (210) made from electrically insulating material interposed between the two tongues (110).
  21. Device according to one of Claims 1 to 18 and 20, characterised by the fact that the means able to provide the passage of current consist of supports (1600) made from electrically conductive material, disposed on the outside of the tongues (110) and distant from the electrodes (150) at rest, the tongues (110) being however adapted to be pressed against the supports (1600) when a high-power arc appears, so that the supports (1600) provide the passage of current to the electrodes (150), in parallel with the tongues (110).
  22. Device according to one of Claims 17 or 18, characterised by the fact that the deflector (190) is formed from a crenellated plate.
  23. Device according to Claim 22, characterised by the fact that the plate (190) forms a baffle which acts by mechanical effect, that is to say extension of the arc, in order to participate in the extinction thereof.
  24. Device according to one of Claims 1 to 23, characterised by the fact that the plate (190) is produced from; or clad with, self-extinguishing material.
  25. Device according to one of Claims 1 to 24, characterised by the fact that it comprises magnetic means, a magnet or electrical coil, placed opposite the gap defined between the electrodes (150), in order to participate in the extinction of the arc.
EP19980402794 1997-11-12 1998-11-12 Spark gap device for protecting electric lines and/or electric apparatus against temporary overvoltages Expired - Lifetime EP0917265B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9714153A FR2770939B1 (en) 1997-11-12 1997-11-12 SPLITTER DEVICE FOR THE PROTECTION OF ELECTRICAL LINES AND / OR ELECTRICAL APPLIANCES AGAINST TEMPORARY OVERVOLTAGES
FR9714153 1997-11-12

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EP0917265A1 EP0917265A1 (en) 1999-05-19
EP0917265B1 true EP0917265B1 (en) 2005-02-02

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EP19980402794 Expired - Lifetime EP0917265B1 (en) 1997-11-12 1998-11-12 Spark gap device for protecting electric lines and/or electric apparatus against temporary overvoltages

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DE (1) DE69828861T2 (en)
FR (1) FR2770939B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10025239C2 (en) * 2000-05-22 2002-06-27 Dehn & Soehne Partially or fully enclosed spark arrester
FR2904893B1 (en) * 2006-08-11 2008-10-10 Soule Prot Surtensions Sa TWO ELECTRODES PRIMER DEVICE FOR ECLATOR AND CORRESPONDING METHODS
FR2907606B1 (en) * 2006-10-20 2009-01-09 Soule Prot Surtensions Sa OVERVOLTAGE PROTECTION DEVICE WITH CONNECTION RANGES AND MONOBLOC ELECTRODES.
DE102013224720B4 (en) 2013-12-03 2016-07-07 J. Pröpster GmbH Surge discharge device with a surge arrester and a quenching unit
EP3644463A1 (en) * 2018-10-22 2020-04-29 ABB Schweiz AG Connector assembly for spark gap comprising a holding member
EP4057457A1 (en) * 2021-03-08 2022-09-14 Soltec Innovations, S.L. Bimetallic spark gap arrangement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1924063A1 (en) * 1969-05-12 1970-11-26 Inst Rundfunktechnik Gmbh Self-regulating protective device for systems at risk of lightning
FR2503471A1 (en) * 1981-04-03 1982-10-08 Lange Emil DEVICE FOR EXTINGUISHING ELECTRIC ARCS, ESPECIALLY A SPLITTER
EP0706245B1 (en) * 1994-10-07 2000-06-07 PHOENIX CONTACT GmbH & Co. Overvoltage protection element
EP0793318A1 (en) * 1996-03-01 1997-09-03 Felten & Guilleaume Austria Ag Overvoltage arrester device

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EP0917265A1 (en) 1999-05-19
DE69828861T2 (en) 2006-04-27
DE69828861D1 (en) 2005-03-10
FR2770939A1 (en) 1999-05-14
FR2770939B1 (en) 2000-01-28

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