EP2064787B1 - Système d'éclateurs pour tensions nominales élevées - Google Patents

Système d'éclateurs pour tensions nominales élevées Download PDF

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Publication number
EP2064787B1
EP2064787B1 EP08832776A EP08832776A EP2064787B1 EP 2064787 B1 EP2064787 B1 EP 2064787B1 EP 08832776 A EP08832776 A EP 08832776A EP 08832776 A EP08832776 A EP 08832776A EP 2064787 B1 EP2064787 B1 EP 2064787B1
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EP
European Patent Office
Prior art keywords
spark gap
spark
series
arrangement according
gap arrangement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
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EP08832776A
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German (de)
English (en)
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EP2064787A1 (fr
Inventor
Arnd Ehrhardt
Uwe Strangfeld
Richard Daum
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Dehn SE and Co KG
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Dehn and Soehne GmbH and Co KG
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Publication of EP2064787A1 publication Critical patent/EP2064787A1/fr
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Publication of EP2064787B1 publication Critical patent/EP2064787B1/fr
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/16—Overvoltage arresters using spark gaps having a plurality of gaps arranged in series

Definitions

  • the invention relates to a spark gap arrangement for higher rated voltages, wherein at least two spark gaps having opposite electrodes are connected in series and at least one of the spark gaps is active, i. triggerable, as well as with an overcurrent protection device for use as a lightning current carrying mains arrester, according to the preamble of patent claim 1.
  • the local spark gaps have a very different inherent capacity, whereby the response voltage of the overall arrangement is determined essentially by the spark gap with the smaller capacity.
  • the partial spark gaps At the lightning current carrying multiple spark gap after EP 1 381 127 A2 is assumed by several, connected in series partial spark gaps, the partial spark gaps, with the exception of the lightning current event case first responding spark gap are connected by impedances, so that they switch through successively. The second and the further spark gaps are connected via the impedances directly to a common reference potential. With the spark gap presented there, the response voltage should be reduced. For this is at least the Electrodes of one of the partial spark gaps applied a trigger voltage, by means of which the partial spark gap is forced to turn on.
  • a spark arrestor overvoltage protection element with at least two located in a pressure-tight housing main electrodes and a Zündangeselektrode, wherein in the housing volume, a functional assembly is housed to reduce the An Anlagenschreib.
  • This functional module comprises a series connection of a voltage-switching element, an impedance and an isolating distance, so that a simplified, quasi-integrated starting aid is created.
  • the U.S. Patent 6,157,529 discloses the interruption of a circuit by means of the disconnection of a fuse and a holding coil of a switch.
  • Ignition aids as in the DE 199 14 313 A1 described, are also used in combination arresters. With these arresters, the starting aid itself can be designed as an independent overvoltage protection device, which activates the short-circuit element, generally a spark gap, only at the risk of its own overload via a trigger function.
  • a combination arrester is for example in the DE 198 38 776 C2 shown.
  • a spark gap arrangement according to the preamble of claim 1 is also made DE-A-2 406 577 known.
  • the object of the invention is also to provide an overcurrent protection device for use in overvoltage protection devices based on spark gaps with higher rated voltages in the range of 440 V to 760 V and more, in combination with a mechanical trigger for a display and fuses for overload protection ,
  • the possibility should be created, using geometrically identical housing, display and mounting parts at different voltage levels to make an economical and functional meaningful design of the active parts, so that an easy adaptability to different uses and applications is given.
  • spark gaps are used, which are located in a flameproof enclosure and which have at least one pressure equalization opening. Furthermore, a distance of the main electrodes of the spark gap bridging insert is provided, which consists of a low-resistance material. This material behaves strongly under current load with respect to the decreasing residual voltage nonlinear.
  • the series connection is formed from two physically separated spark gaps, one of the spark gaps being triggerable and the second spark gap being passive.
  • the spark gaps are accommodated in a common, pressure-resistant, preferably metallic housing and it is possible to use two active, triggerable spark gaps for voltages of substantially 760 V.
  • the spark gaps preferably used are rotationally symmetrical.
  • the respective opposing main electrodes comprise a main electrode with Gasumlenkkanal.
  • the bridging, low-impedance insert already mentioned is arranged as a preferably rotationally symmetrical part with a cylindrical opening defining the arc combustion chamber.
  • the main electrode opposite the main electrode with the gas deflection channel has a nose portion or a projection which dips into the cylindrical opening, with the wall coming into contact with it. It is understood that the nose portion is to be formed in its outer contour complementary to the shape of the cylindrical opening.
  • the low-resistance material of the insert preferably has a cold resistance of ⁇ 100 ohms.
  • the insert has in one embodiment, a hollow cylindrical shape and is located with one end face over the entire surface of the main electrode with Gasumlenkkanal.
  • the preferably hollow-cylindrical insert in each case with one of its end faces, is in contact with one main electrode in each case over its entire surface.
  • the flashover between the main electrodes takes place only after a comparatively longer period of time or at very high pulse currents, which is of particular interest when the residual voltage of the spark gap is to be above the rated voltage for a plurality of pulse-shaped discharges in order to prevent a Netz Steinstrom ,
  • the clear distance between the respective main electrodes of the spark gaps is substantially greater than that which can be found in the known state of the art in corresponding series circuits, and is at least about 5 mm.
  • the pressure equalization openings are basically oriented in the axial direction of the rotationally symmetric spark gaps and are away from one another in order to prevent unwanted exposure of functionally important parts.
  • a transition part may be provided which has a higher resistance value relative to the insert, but is conductive.
  • the geometric shape of the insert can be subjected to changes in the radial and / or axial direction for adjusting and varying the current density, so that in the preferred rotationally symmetric Basic construction and a desired modular structure by replacing the insert various electrical parameters can be realized.
  • a common central main electrode is preferably provided, which in this case is insulated from the jacket encapsulation.
  • the pressure compensation openings are designed axially and opposite in the region of the external contact of the respective main electrode as channels of small cross section for the slow pressure reduction of the already cooled gas. Also based on the design of the pressure equalization channels and the meandering deflection of the gas flow is to the patent application DE 10 2007 001 093.3 which is hereby declared and introduced the subject of the present application.
  • the external trigger circuit for igniting the active spark gap is guided on the trigger electrode of this active spark gap and on the electrical end connection points of the series connection.
  • the necessary follow current limiting is achieved by increasing the arc field strength due to the pressure increase or in combination with the arc cooling by flowing the arc within encapsulated spark gaps.
  • the distances between the main electrodes are at least 5 mm.
  • the low-resistance material of the insert is located within the passive spark gap directly in the region of the arc channel and radially or completely limits the wall-stabilized arc.
  • the material bridging the gap between the main electrodes of the passive spark gap has a cold resistance of less than 100 ohms and behaves at current load with respect to the decreasing residual voltage is not very linear, ie the voltage drops despite further increasing current.
  • the material used can briefly cause pulsed currents of several kA without lasting damage until overturning.
  • the resulting residual voltage is well below 2 kV.
  • the height and the duration of the residual stress can also be set or influenced by influencing the current density distribution in the material itself, by the geometric design of the insert or else by a functional subdivision from a plurality of materials.
  • the inventive passive spark gap does not affect the response, coordination and residual voltage behavior of the entire series connection.
  • the subdivision into partial spark gaps reduces the thermal and dynamic load on each single spark gap and there are many design options.
  • the performance of the series-connected lightning arrester is improved in terms of follow current limiting, lightning current carrying capacity and aging.
  • Compared to a series connection of two triggerable arresters there is the advantage that both space and costs for the second or multiple ignition units can be saved.
  • a conventional series connection of triggerable spark gaps namely either a simultaneous ignition must be done, which makes high demands on the spark gaps, the trigger circuit and the potential control, or the trigger circuit must be able to compensate the Zündverzugs founded the individual spark gaps, since usually trigger circuits only one time and energy provide limited ignition pulse.
  • the arrester has a passive spark gap for the 440 V level and a triggerable spark gap connected in series with a trigger circuit.
  • Another basic idea of the invention is to divide the fuse elements for the spark gap arrangement, in particular fusible elements, into a series connection of a plurality of fuses, which, in addition to the electrical connection, are partially in a mechanical series connection and partly in a mechanical parallel connection.
  • the division also allows a large variance in terms of residual voltage behavior, rollover protection, current limitation, the actual performance and the necessary distances to vulnerable other components, in particular a trigger circuit.
  • a series connection of a plurality of fuse elements is provided which form a geometrically predetermined, mechanical and electrical connection.
  • this series connection has a mechanical and electrical parallel connection of fusible elements, wherein at least one of the fusible elements of the parallel connection comprises a firing pin as a mechanical trigger for actuating a function display.
  • a first part of the series combination is located on one side of a wiring substrate, in particular a printed circuit board, and a second part of the series compound is located on a second, the first opposite side of the wiring substrate.
  • the first part of the series composite comprises at least two cylindrical individual fuses, which are mechanically and electrically connected by a conductive cylinder on the end faces and connecting caps present there. This mechanical and electrical connection with the aid of the conductive cylinder takes place only in the area of the mechanical connection caps, so that the insulation and separation distances are maintained.
  • the composite of the cylindrical individual fuses with the conductive connecting cylinder may be coated by an insulating material, in particular by a shrink tube.
  • the second part of the series network comprises the already mentioned parallel network, wherein the parallel network is predominantly surrounded by a protective housing to which further functions, which are described below, can be assigned.
  • connection caps of the fusible elements of the parallel connection are electrically and mechanically connected and merge into a connection extension, which in each case allows mounting on the wiring carrier.
  • the free ends of the individual fuses of the first part of the series composite also have connection caps with Lötfähnchen or tab-like extensions.
  • a conductive, in particular metallic, geometrically diameter-matched cylinder may also have a predetermined impedance.
  • the wiring carrier has an elongate, rectangular shape with screw connection lugs attached to the narrow sides.
  • the first part of the series composite is at a longitudinal outer edge, with this substantially laterally terminating, located on the wiring carrier.
  • the second part of the series composite containing the parallel connection, is arranged essentially at right angles to the longitudinal axis of the first part of the series combination on the wiring carrier.
  • the protective housing is open to the longitudinal edge of the wiring substrate, to allow an exit of the firing pin and an operative connection of the firing pin towards a spring-biased indicator slide.
  • the protective housing has on its upper side facing away from the wiring substrate a color-coded indicator surface or an indicator surface extension, which is integrally formed on the housing.
  • a functional state can be displayed by a slide either the view of the top releases or blocks this view.
  • the protective housing on the one hand, the function of the isolation of the parallel compound and serves the purpose of retaining elements in the event of triggering this fuse. Furthermore, the housing serves for the aforementioned formation of an indicator surface or the reception of an indicator surface extension.
  • the wiring carrier is preferably mountable on the upper side of a housing, wherein the housing accommodates in its interior an arrangement of surge arresters, in particular spark gaps.
  • This arrangement of surge arresters, in particular spark gaps is in series connection.
  • One of the spark gaps of the device may be triggerable, in which case the trigger circuit is on the wiring carrier.
  • the housing for receiving the spark gaps has on its upper side over a longitudinal edge a trough-like recess into which the first Part of the series composite dips to effect in this way a protective and insulating function of the first part of the series compound.
  • the overall arrangement of housing-mounted spark gaps, located on the top of the housing wiring substrate with electrical elements and the series circuit of a plurality of fuses is surrounded by an insulating cap, the cap having the aforementioned window for detecting the functional state with respect to the indicator surfaces.
  • the overcurrent protection device is characterized by a modular design with selected fuses for series connection to cause easy adaptation to different rated voltages.
  • the display slider which is spring-biased and can be released from the firing pin of the parallel connection, has a display surface which releases or obscures a color-deviating indicator surface, in particular the indicator surface of the top of the protective housing.
  • the display slider has an extension, which extends in the longitudinal direction beyond the narrow side of the wiring substrate, in order to interact there with a telecommunications contact in operative connection.
  • the fusible elements which can be used in the series connection of the overcurrent protection device consist of individual fuses which are inexpensive to manufacture, in each case, for example. for a voltage level of 250 V.
  • the cylinder may preferably be a metal cylinder, which in addition to the electrical connection also takes over the mechanical fixing and the necessary mechanical stabilization of the corresponding part of the series connection.
  • the number of connection elements is lower by this type of connection than in a simple series connection of individual electrical fuses, which are each connected, for example, by soldering to a circuit board.
  • connection elements or end caps of the fuses The distance between the remaining connection elements or end caps of the fuses is considerable, which makes it easier to maintain separation distances and significantly reduces the risk of bridging.
  • the preferred arrangement of the above-described series connection on the underside of the wiring substrate also provides space on the component side, in addition to sufficient separation distances on the wiring substrate.
  • the opposite side on the one hand on the volume savings and on the other hand by avoiding critical approximations between the overload-endangered elements and the protective device.
  • the first part of the series connection is separated at the top by the board from the components of the ignition circuit and on the bottom by the trough-like expression of the housing. This results in a quasi a complete insulating enclosure of the protective device. This prevents in the event of an error Berußung that may occur, and it will protect the separation sections of the ignition circuit when the release of gas or plasma from the fuse from flashovers.
  • the parallel part arrangement representing the second part of the series combination is preferably designed as in the German patent application DE 10 2006 026 711.7 described.
  • the fuses used as fuses of the parallel connection and also of the series combination preferably have the same fusible conductor at maximum rated voltage. This ensures an almost simultaneous response of all fuses for adiabatic loads and loads in which the axial heat dissipation dominates over the radial heat output.
  • the characteristic of the series connection of the fuses thus corresponds to a partial area fuse.
  • the dimensions of such a series connection are considerably smaller with comparable switching capacities than with individual fuses, eg for a rated voltage of 690 V.
  • one or more fuses of the series assembly can be replaced by a simple metallic cylinder. In addition to the cost reduction, this also leads to a reduction of the residual voltage and thus supports the desired basic function of the arrester.
  • a two-sided arrangement of metal cylinders in addition to a real fuse in the series combination also the current force effect can be reduced to the fusible conductor, whereby higher pulse currents can be supported.
  • the Fig. 1 shows a series connection (sectional view) of a triggered spark gap 1 (active spark gap) and an ungetriggered (passive) spark gap 2.
  • the trigger circuit 3 of the active spark gap 1 has a connection 4 which is connected to a connection 5 of a main electrode 8 of the passive spark gap 2. Another connection of the trigger circuit 3 leads to the main electrode 8 of the active spark gap 1, the also has the trigger contact through an insulation 20, led out of the pressure-resistant metallic encapsulation 21 has.
  • Pressure compensation openings 6 of the spark gaps 1 and 2 and the gas flow direction 7 (arrow) within the spark gaps 1 and 2 are oriented opposite.
  • Both spark gaps 1 and 2 each have a plurality of independent ventilation openings 6 for better control of the flow and for effective cooling of the gases formed during ignition and firing of the arc.
  • one of the main electrodes 8 has an opening 22, which forms part of a Gasumlenkkanals, which merges into the pressure equalization openings 6.
  • the triggerable spark gap 1 has two main electrodes, namely the main electrode 8 and 9, and an auxiliary electrode 10, which is in electrical connection with the trigger contact 20.
  • the spark gap 1 has at least one insulation gap 12, which is located between the main electrodes 8 and 9 of this spark gap.
  • the passive spark gap 2 also has two main electrodes 8 and 9.
  • the spacer 13 is preferably designed as a hollow cylinder and lies according to the illustration Fig. 1 with one of its end faces over the entire surface on the main electrode 8. In the interior of the insert 13, that is, there existing cylindrical opening, protrudes a nose portion 23 of the main electrode 9, resulting in a radial contact with the insert or the spacer 13 results.
  • the spacer 13 is to prevent flashovers in the contacting region between the nose portion 23 of the main electrode 9 and the plate-shaped electrode holder 14 is insulated from the latter via the part 15.
  • the immersion depth of the nose portion 23 of the electrode 9 in the spacer 13 increases with the desired level of performance of the arrester and decreases with increasing erosion resistance of the electrode material.
  • the immersion depth is in this case dimensioned such that both the axial burnup of the nose electrode 9 and the radial erosion of the spacer 13 do not lead to an insulating separation path between the parts 13 and 9.
  • the height and duration of the current through the spacer 13 as well as the rollover behavior can be influenced by the control of the current density and the current distribution in the spacer 13 in addition to the material properties of this part. This can in addition to influencing the Residual voltage can also be used to control the power conversion, the burnup and the thermal load of the spark gap and in particular of the insert 13.
  • the main electrodes 8 and 9 of the passive spark gap 2 can be completely or partially isolated from the spacer 13.
  • the Fig. 2 shows an exemplary geometry as a cross-sectional representation of a passive spark gap. Again, two opposite main electrodes 8 and 9 are present. The electrodes are isolated in a metallic enclosure 21 located.
  • the main electrodes 8 and 9 shown can also be isolated from the insert 13, but the breakdown voltage of the insulation must be well below the desired protection level and below the residual voltage of the trigger circuit.
  • the spacer 13 can also be varied in the circumference of the hollow cylinder in both the radial and in the axial direction with respect to the electrical conductivity. In this way, in addition to the control of the electric current density in the spacer 13 and effects of thermal insulation with respect to the electrodes 8 and 9 are effected. In addition, the variation of the materials in the discharge channel can serve the function division or be used to influence the temperature and pressure resistance and the better aging quality and to reduce the burnup.
  • the Fig. 2 shows here, for example, a substantially only axial function distribution.
  • the electrodes 8 and 9 with respect to the metallic encapsulation 21 isolated.
  • the Fig. 3 shows a further embodiment of a possible geometry in cross-sectional view for the passive spark gap. 2
  • a flashover between the main electrodes 8 and 9 should be done only at a comparatively long period of time or very high pulse currents.
  • the spacer 13 is contacted on both sides of the entire surface with the respective main electrodes 8 and 9 in order to effect a largely homogeneous current density within the spacer 13.
  • increases in the electric field strength, in particular in the rollover area can be avoided.
  • FIG. 4 Let us illustrate a basic embodiment of two spark gaps in a cross-sectional view, which are located within a common metallic encapsulation 21.
  • Both spark gaps have a common center electrode 9, which is insulated from the flameproof enclosure 21. In the area of the passive spark gap 2, however, there is a low-resistance connection to the main electrode 8 there.
  • the spark gaps 1 and 2 In contrast to the representation after Fig. 1 in which in each case one main electrode is in direct contact with the metallic sheath 21 in both spark gaps 1 and 2, at least one of the spark gaps 1 and 2 is shown in FIG Fig. 4 both main electrodes with respect to the jacket or the enclosure 21 isolated.
  • Fig. 4 This is the case with the passive spark gap 2.
  • the spark gap 1 or both Spark gaps are performed with insulating main electrodes 8 and 9.
  • the insulation of the main electrodes 8 and 9 is preferred over an insulating interruption of the pressure-resistant metallic shell 21 due to a better overload behavior.
  • the main electrodes each have at least a distance of substantially 5 mm in both spark gaps 1 and 2.
  • the pressure in the discharge region, which is completely or partially enclosed by the insert 13, is up to several 100 bar in the case of impulse and subsequent static discharges. For prospective net sequence currents in the range of> 500 A to several kA, pressures of at least 10 bar are achieved.
  • the illustrated series circuit of two spark gaps can basically be extended as desired.
  • the series connection of a spark gap with insulation and a quasi-shorted spark gap has compared to two spark gaps, each with isolated separation distance per se the disadvantage that only one separation section provides an immediate consolidation after the current zero crossing.
  • the instant solidification voltage is in the range of about 300 V.
  • the used overcurrent protection device comprises a series connection of a plurality of fuse elements, which form a geometrically predetermined, mechanical and electrical composite.
  • a first part of the series composite comprises two individual cylindrical fuses 100 and 200. These two individual cylindrical fuses 100 and 200 are mechanically and electrically connected, for example, by a conductive, preferably metallic cylinder 300 on the end faces 400 and terminal caps 500 present there. connected by clamping or soldering.
  • the resulting composite of the cylindrical individual fuses 100 and 200 with the connecting cylinder 300 is coated with an insulating shrink tube 600 (see Fig. 6 ).
  • connection caps 500 The free ends of the individual fuses 100 and 200 likewise have connection caps 500, but with soldering lugs 500a, which serve for electrical connection and mechanical fixing on a printed circuit board.
  • the series circuit also includes a mechanical and electrical parallel composite of fusible elements, wherein at least one of the fusible elements of the parallel compound has a firing pin as a mechanical trigger.
  • the mechanical release can be embodied as a wire-shaped release part, whereby preferably this wire of the release part is connected in parallel over a part of the entire overcurrent protection device, which has the advantage that the coordination of the current commutation and the switching capacity is limited to this part of the protection.
  • the fusible link of the fuse to which the indicator is connected in parallel may be provided with a minimally lower fuse integral to ensure a reliable indication even at low overloads.
  • the indicator part ie the parallel connection, with an additional housing 700 (see Fig. 8 and 9 ) Mistake.
  • This housing 700 blocks the external flashover and greatly reduces the danger that can arise from released indicator parts (striker).
  • the housing 700 is preferably arranged at right angles to the longitudinal axis of the wiring substrate 800.
  • the first part of the series assembly 900 including the connection cylinder and protective cover individual fuses, is located on the underside of the wiring substrate 800, with the second part of the array, located in the housing 700, being placed on top of the wiring substrate 800.
  • the wiring support 800 has an elongated, rectangular shape with screw connection lugs 110 attached to the narrow sides, wherein the first part of the series assembly 900 is located at a longitudinal outer edge, substantially laterally terminating therewith.
  • the protective housing 700 is open to the longitudinal edge of the wiring substrate 800, to allow escape of the firing pin therein and an operative connection to a spring-biased indicator slide 111.
  • the protective housing 700 has on its upper side remote from the wiring support 800 a color-coded indicator surface, e.g. red, or has an indicator surface extension extending from the housing 700.
  • a color-coded indicator surface e.g. red
  • the wiring carrier 800 is mountable on top of a housing 112, wherein the housing 112 may be a series spark gap arrangement.
  • Sheathed portions are the top of the wiring substrate 800, the groove-shaped recess 114, the spark gap housing 112 and the fuse housing 700 to see.
  • the area of the carrier board and the fuses is protected from the spark gap housing 112 by an insulating partition plate from staining or contamination from this area.
  • the fuse in the groove-shaped recess 114 is thus, in addition to the contaminants from the region of the wiring substrate 800, also sealed off from the spark gap housing 112. Thus, neither impurities from the spark gap area nor contamination from destroyed components on the wiring carrier can affect the switching capacity of the fuse 900.
  • the other part of the series connection of the fuses is protected by the housing 700 for the parallel connection from being exposed from the wiring support and at the same time can not cause arcing on the wiring support.
  • At least one spark gap of the spark gap arrangement can be triggered and the trigger circuit can be located on the wiring carrier.
  • the contacting between the wiring carrier and the spark gap to be triggered can take place via a contact spring which extends through a recess 113 in the housing 112 ( Fig. 7 ).
  • spark gap housing 112 has on its upper side a trough-like recess 114, in which the first part 900 of the series combination dips to effect a protective and insulating function (see Fig. 7 and 8th ).
  • the overall assembly may be surrounded by an insulating cap, the cap having a viewing window to allow a view of the top of the housing 700 and the indicator slide 111, respectively.
  • the display slider 111 has a display surface 115.
  • This display area may e.g. have a green color that signals the condition "in order”.
  • the display slider moves as shown in the illustration Fig. 9 to the left, the underlying top of the housing 700, which is designed differently colored, released and signaled an error condition.
  • the display slide 111 also has an extension 116 which extends in the longitudinal direction over the narrow side of the wiring substrate 800, to communicate with a telecommunications contact 117 in operative connection.

Landscapes

  • Fuses (AREA)
  • Breakers (AREA)
  • Control Of Eletrric Generators (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Emergency Protection Circuit Devices (AREA)

Claims (15)

  1. Ensemble d'éclateurs pour des tensions nominales supérieures, dans lequel au moins deux éclateurs présentant deux électrodes opposées sont branchés en série et l'un au moins des éclateurs est réalisé de manière active, c'est-à-dire susceptible d'être déclenché, et comprenant un moyen de protection anti-surtension pour l'utilisation en tant que protecteur de réseau parafoudre,
    caractérisé en ce que
    les éclateurs (1 ; 2) sont placés dans un encapsulage (21) résistant à la pression avec au moins une ouverture d'égalisation de pression (6), et un insert (13) qui comble la distance des électrodes principales (8 ; 9) de l'éclateur passif (2) est en un matériau faiblement ohmique qui, lors de l'application d'un courant, se comporte de manière fortement non linéaire vis-à-vis de la chute de tension résiduelle, et le moyen de protection anti-surtension contient un circuit série formé de plusieurs éléments fusibles qui forment un complexe mécanique et électrique de géométrie prédéterminée.
  2. Ensemble d'éclateurs selon la revendication 1,
    caractérisé en ce que les éclateurs (1 ; 2) sont entourés respectivement individuellement par un encapsulage (21) résistant à la pression, et les ouvertures d'égalisation de pression (6) sont orientées en éloignement l'une de l'autre.
  3. Ensemble d'éclateurs selon la revendication 1,
    caractérisé en ce que les éclateurs (1 ; 2) sont entourés par un boîtier commun (21) résistant à la pression, qui comporte les ouvertures d'égalisation de pression (6).
  4. Ensemble d'éclateurs selon l'une des revendications précédentes,
    caractérisé en ce que les éclateurs (1, 2) sont réalisés à symétrie de révolution, et les électrodes principales respectives (8 ; 9) sont mutuellement opposées, et respectivement l'une des électrodes principales (8) comporte un canal de déviation de gaz (22) et ledit insert faiblement ohmique (13) qui comble la distance entre les électrodes principales opposées (8 ; 9) dudit au moins un éclateur passif (2) est réalisé sous forme de pièce à symétrie de révolution avec une ouverture de forme cylindrique qui délimite la cavité de l'arc électrique, et l'électrode principale (9) opposée à l'électrode principale comportant le canal de déviation de gaz (22) comporte un tronçon en forme de bec (23) qui plonge dans l'ouverture de forme cylindrique et vient en contact avec la paroi de celle-ci.
  5. Ensemble d'éclateurs selon la revendication 4,
    caractérisé en ce qu'il est prévu, entre la pièce à symétrie de révolution présentant l'ouverture de forme cylindrique et l'électrode principale présentant le tronçon en forme de bec (23), une pièce de transition (16) qui présente par rapport à l'insert (13) une valeur de résistance plus élevée et qui est conductrice.
  6. Ensemble d'éclateurs selon l'une des revendications 3 à 5,
    caractérisé en ce que lors de l'agencement de deux éclateurs dans un encapsulage commun (21) résistant à la pression, il est prévu une électrode principale centrale commune (9), laquelle présente une isolation par rapport à l'encapsulage enveloppe (21).
  7. Ensemble d'éclateurs selon l'une des revendications précédentes,
    caractérisé en ce que le circuit série comprend un circuit parallèle mécanique et électrique formé d'éléments fusibles, dans lequel l'un au moins des éléments fusibles du circuit parallèle comprend un percuteur à titre de déclencheur mécanique.
  8. Ensemble d'éclateurs selon les revendications 1 et 7,
    caractérisé en ce qu'une première partie (900) du circuit série se trouve sur un côté d'un support de câblage (800), et une seconde partie du circuit série se trouve sur un second côté, opposé au premier côté, du support de câblage (800).
  9. Ensemble d'éclateurs selon la revendication 8,
    caractérisé en ce que la première partie du circuit série comprend au moins deux fusibles individuels cylindriques (10 ; 200) qui sont reliés mécaniquement et connectés électriquement par un cylindre conducteur (300) au niveau des faces frontales (400) et par des capuchons de connexion (50) prévus à cet endroit.
  10. Ensemble d'éclateurs selon la revendication 9,
    caractérisé en ce que le circuit formé de fusibles individuels cylindriques (100 ; 200) est recouvert d'une gaine thermorétractable isolante ou d'un matériau similaire (600).
  11. Ensemble d'éclateurs selon la revendication 9 ou 10,
    caractérisé en ce que les extrémités libres des fusibles individuels (100 ; 200) comportent des capuchons de connexion (500) avec des pattes de brasage (500a).
  12. Ensemble d'éclateurs selon l'une des revendications 8 à 11,
    caractérisé en ce que le support de câblage (800) présente une forme allongée rectangulaire avec des pattes de connexion à visser (110) rapportées sur les petits côtés, dans lequel la première partie (900) du circuit série est agencée sur une arête extérieure longitudinale en se raccordant essentiellement latéralement à celle-ci, et la seconde partie du circuit série, qui contient le circuit parallèle, est agencée essentiellement à angle droit par rapport à l'axe longitudinal de la première partie (900) du circuit série sur le support de câblage (800).
  13. Ensemble d'éclateurs selon l'une au moins des revendications 8 à 12,
    caractérisé en ce que le support de câblage (800) est susceptible d'être monté sur la face supérieure d'un boîtier (112), et en ce qu'un ensemble d'éclateurs peut être prévu dans le boîtier (112).
  14. Ensemble d'éclateurs selon la revendication 13,
    caractérisé en ce que l'ensemble d'éclateurs se présente sous forme d'un circuit série, et l'un des éclateurs ou les deux de l'ensemble est/sont susceptible(s) d'être déclenché(s), et le ou les circuit(s) de déclenchement se trouve(nt) sur le support de câblage (800).
  15. Ensemble d'éclateurs selon l'une des revendications 8 à 14,
    caractérisé en ce que le boîtier (112) des éclateurs possède à sa face supérieure un évidement (114) en forme de goulotte dans lequel plonge la première partie du circuit série pour assurer une fonction de protection et d'isolation.
EP08832776A 2007-10-15 2008-10-14 Système d'éclateurs pour tensions nominales élevées Not-in-force EP2064787B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007049403 2007-10-15
DE102008049458A DE102008049458A1 (de) 2007-10-15 2008-09-29 Funkenstreckenanordnung für höhere Bemessungsspannungen
PCT/EP2008/063765 WO2009050152A1 (fr) 2007-10-15 2008-10-14 Système d'éclateurs pour tensions nominales élevées

Publications (2)

Publication Number Publication Date
EP2064787A1 EP2064787A1 (fr) 2009-06-03
EP2064787B1 true EP2064787B1 (fr) 2010-02-24

Family

ID=40490460

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08832776A Not-in-force EP2064787B1 (fr) 2007-10-15 2008-10-14 Système d'éclateurs pour tensions nominales élevées

Country Status (4)

Country Link
EP (1) EP2064787B1 (fr)
AT (1) ATE459118T1 (fr)
DE (3) DE102008064794B3 (fr)
WO (1) WO2009050152A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012022399A1 (de) 2012-11-16 2014-05-22 Phoenix Contact Gmbh & Co. Kg Zündkreis
DE102018205549B3 (de) 2018-04-12 2019-08-01 Phoenix Contact Gmbh & Co. Kg Abtrennelement und Ensemble aufweisend ein entsprechendes Abtrennelement und ein Überspannungsschutzelement
DE102019102196B4 (de) * 2019-01-29 2023-02-09 Phoenix Contact Gmbh & Co. Kg Überspannungsableiter
DE102019134337A1 (de) * 2019-12-13 2021-06-17 Tdk Electronics Ag Vorrichtung zur Ableitung von Überspannungen und deren Verwendung
DE102021208076B4 (de) 2021-07-27 2023-06-22 Dehn Se Überspannungsschutz-Funkenstreckenanordnung und Verfahren zum Betreiben einer Überspannungsschutz-Funkenstreckenanordnung

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7316628A (nl) * 1973-12-04 1975-06-06 Coq Bv Overspanningsafleider voor hoge spanning.
DE3228471C2 (de) 1982-07-30 1985-03-07 Dehn + Söhne GmbH + Co KG, 8500 Nürnberg Überspannungsschutzgerät
US6157529A (en) 1984-10-24 2000-12-05 Ahuja; Om Basic surge protector
EP0233907A1 (fr) * 1985-08-05 1987-09-02 McGraw-Edison Company Agencements de protection contre les surtensions
SE458894B (sv) 1987-09-04 1989-05-16 Asea Ab Anordning foer oeverspaenningsskydd
DE3831935A1 (de) 1988-09-20 1990-03-29 Dehn & Soehne Ueberspannungsschutz
DE3914624A1 (de) 1989-05-03 1990-11-08 Dehn & Soehne Anordnung mit zumindest zwei funkenstrecken fuer die begrenzung von ueberspannungen
DE4240138C2 (de) 1992-11-28 1995-05-24 Dehn & Soehne Blitzstromtragfähige Anordnung mit zumindest zwei in Reihe geschalteten Funkenstrecken
DE19751470C2 (de) 1997-11-21 1999-12-23 Quante Ag Überspannungsschutzvorrichtung
DE19838776C2 (de) 1998-08-26 2002-01-10 Dehn & Soehne Verfahren und Anordnung mit einem zwei-stufigen Überspannungsschutz in Niederspannungsanlagen
DE19914313B4 (de) 1999-03-01 2005-08-18 Phoenix Contact Gmbh & Co. Kg Überspannungsschutzsystem
DE10230827A1 (de) * 2002-07-09 2004-02-05 Obo Bettermann Gmbh & Co. Kg Blitzstromtragfähige Funkenstrecke
DE102004006988B4 (de) 2003-11-28 2014-02-06 Dehn + Söhne Gmbh + Co. Kg Überspannungsschutzeinrichtung auf Funkenstreckenbasis, umfassend mindestens zwei in einem druckdichten Gehäuse befindliche Hauptelektroden
DE102005024658B4 (de) * 2005-05-30 2007-02-15 Dehn + Söhne Gmbh + Co. Kg Gekapselte, druckfest ausgeführte, nicht hermetisch dichte, rotationssymmetrische Hochleistungsfunkenstrecke
FI121765B (fi) * 2005-07-01 2011-03-31 Alstom Grid Oy Menetelmä ja sovitelma sarjakipinävälin liipaisemiseksi
DE102006034404B4 (de) 2006-06-08 2014-05-28 Dehn + Söhne Gmbh + Co. Kg Überstromschutzeinrichtung für den Einsatz mit Überspannungsschutzgeräten, mit einem zusätzlichen als Schlagbolzen ausgeführten mechanischen Auslöser
DE102007015931A1 (de) * 2007-01-04 2008-07-10 Dehn + Söhne Gmbh + Co. Kg Gekapselte, druckfest ausgeführte, nicht hermetisch dichte, rotationssymmetrische Hochleistungsfunkenstrecke

Also Published As

Publication number Publication date
WO2009050152A1 (fr) 2009-04-23
DE102008049458A1 (de) 2009-04-30
DE102008064794B3 (de) 2017-03-02
EP2064787A1 (fr) 2009-06-03
ATE459118T1 (de) 2010-03-15
DE502008000401D1 (de) 2010-04-08

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