EP0789434B1 - Verfahren zur Beeinflussung des Folgestromlöschvermögens von Funkenstreckenanordnungen und Funkenstreckenanordnungen hierfür - Google Patents
Verfahren zur Beeinflussung des Folgestromlöschvermögens von Funkenstreckenanordnungen und Funkenstreckenanordnungen hierfür Download PDFInfo
- Publication number
- EP0789434B1 EP0789434B1 EP96118511A EP96118511A EP0789434B1 EP 0789434 B1 EP0789434 B1 EP 0789434B1 EP 96118511 A EP96118511 A EP 96118511A EP 96118511 A EP96118511 A EP 96118511A EP 0789434 B1 EP0789434 B1 EP 0789434B1
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- European Patent Office
- Prior art keywords
- housing
- pressure
- overvoltage
- current
- electrodes
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Classifications
-
- 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
- H01T1/00—Details of spark gaps
- H01T1/02—Means for extinguishing arc
Definitions
- the invention is in the technical field of spark gap arrangements.
- the invention initially relates to a Process for operating Spark gap arrangements with two electrodes inside a housing are arranged, optionally within an extinguishing gas can be provided in the housing.
- the invention relates to spark gap arrangements for Execution of the procedure.
- Spark gap arrangements are based on, among other things a preferred component due to its high energy dissipation capacity for overvoltage protection. Especially with spark gap arrangements, those in the low voltage supply system installed, it can lead to the discharge of an overvoltage come to a grid follow current. For this reason it results there is a demand for the subsequent current extinguishing capacity for such devices.
- the values for UA + UK are basic parameters of plasma technology and hardly to be influenced.
- a first possibility in principle is influencing the arc length 1. This is in the Usually achieved by widening the arch. Disadvantageous is that the geometric dimensions of the electrodes are appropriate grow up and with that this influence certain geometry specifications are bound.
- the second principle Possibility is the field strength E and thus that Follow current extinguishing capacity via the direct cooling effect influence. This is common in known devices brought about by cooling the arc. The cooling is usually due to the cooling effect of the insulating material walls as well as the use of gas-emitting insulating materials. There is also a strong flow of the extinguishing gas necessary, which in turn requires a great deal of design effort required.
- spark gap housing dissipated outside into the environment.
- DE-OS 20 07 293 is a re-igniting spark gap for surge arresters with a spark quenching coil and with two arranged on an insulating pad Electrodes known.
- the spark gap is in a known manner on a circular plate made of ceramic material assembled.
- the plate has a recessed part, the one Extinguishing chamber forms.
- the spark gap consists of two Electrodes, each consisting of a fastener and there is a spark gap part.
- the spark gap parts diverge from the ignition point. Your opposite Areas form outlet paths for the base points of the Arc occurring between the electrodes.
- the one from the other Form opposite surfaces of the spark gap parts Return paths for the base points of the arc if the Arc so far under the influence of the spark quenching coil has been extended that its base points are the tops of the Electrodes have passed. Between the return path and the Each electrode has a channel that runs out a flow channel for the ionized gas of the arc forms. These channels can be designed as channels in the plate and will be on one side of the spark gap part covered. According to another embodiment the channel can consist of a hole in each electrode, so that the channel lies entirely in the electrode material. The canal flows into or in the immediate vicinity of the Ignition point where the arc is ignited when a flashover occurs entry.
- This spark gap works in the following way: If the voltage rises above the ignition voltage of the spark gap, there is a flashover between the electrodes at the ignition point. Under the influence of the magnetic field of the quenching coil, which acts perpendicular to the plane of the plate, the arc is moved upwards and increases in length. If the current continues for a sufficiently long time, the base points of the arc move upwards, pass the ends of the spark gap parts and continue on the return paths. The arc presses ionized, hot gas all the time. When the base of the arc comes close to the channels, gas flows into the channels and to the channel mouths on the discharge paths. In this position, the length of the arc, and thus the arc voltage drop, has increased.
- the invention is based on the object a method according to the preamble of claim 1 to be designed in such a way that an increase in the subsequent current extinguishing capacity none, at least only one achieved a slight increase in volume of the spark gap arrangement becomes.
- This object is achieved based on a method with the features in the preamble of claim 1 according to the invention first by adjusting the size of the follow-up current to be deleted to the volume of the interior of the housing such that a brief increase in the internal pressure of the housing to a multiple of the atmospheric pressure is effected, the pressure increase in the interior having the electrodes being produced by the arc of the follow current itself.
- the increase in the secondary current extinguishing capacity is therefore not achieved, as is already known and customary, by improved cooling of the arc, but by a pressure-dependent influencing of the arc field strength.
- the associated increase in arc tension improves the extinguishing conditions in a surprisingly simple way.
- the optimal volume of the arc chamber i.e. here the o.g. Interior of the housing are subject to some constraints note. If the chamber volume is too small, it comes to the Leakage or follow-up current deletion to a mechanical and / or thermal overload of the housing. Is this The volume is too large, the pressure rise reached and therefore Arch tension too low. These boundary conditions is provided with the method according to the invention Equal pressure increase.
- the internal pressure of the housing is briefly increased to 10.10 5 Pa - 60.10 5 Pa (10 - 60 bar).
- This allows the follow-up current extinguishing capacity to be quadrupled, the above-mentioned advantage of a very small volume of the interior of the housing also being given.
- An increase in the subsequent current extinguishing capacity via the previously used methods would also quadruple the arc length, but only if the required size of the interior space of the housing was quadrupled accordingly.
- the housing Inside the housing can either the aforementioned atmospheric Pressure or a different, preferably higher internal pressure than atmospheric pressure be given. It is particularly an extinguishing gas thought. If the internal pressure in the housing from the atmospheric If the pressure deviates, the hermetic sealing of the Housing are taken care of.
- the degradation the pressure is preferably within 3 to 5 hours. Because every surge current results in a follow current and the follow current an increase due to its heat development the internal pressure in the spark gap arrangement, is through the aforementioned procedural measures- if necessary - reliably avoided that Overpressure add up and the spark gap arrangement to destroy. Rather, the features of claims 3 and 4 a slow, continuous equalization of the internal pressure of the housing to the outside atmosphere. details the sequence of events only results from the time required for the pressure reduction. At the last one The procedure mentioned is also as high as possible Extinguishing power achieved.
- the overpressure required is also here produced by the follow-up current to be deleted.
- This pressure-dependent increase in arch tension leads to influencing the current, i.e. to reduce the line frequency follow currents over the spark gap, so that whose thermal load drops.
- the relief of overpressure can be carried out with a quasi-pressure-tight housing become. This is based on claim 9 and its explanation referred.
- the idle pressure prevails in the respective housing of the filling gas.
- the resting pressure can be the atmospheric Match pressure.
- the filling gas can be air, but also a special extinguishing gas (e.g. SF6).
- the volume of the interior of the Housing must be chosen accordingly larger.
- the aim of the invention explained at the beginning is included a relatively small volume housing achieved by a the highest possible arc voltage is generated, which is the mains voltage counteracts and thus the follow current on such a low value reduces that it is deleted quickly.
- the invention also relates to the configuration of a Spark gap arrangement according to the preamble of the claim 6.
- a Spark gap arrangement for example from DE-G 73 15 846 closed isolating spark gap in explosion-proof Execution known to prevent the skipping sparks in contact with the outside atmosphere.
- the spark gap has a metal one Pot-like housing that also provides the electrical connection the clamp to a first electrode disk.
- a second electrode disc is from the first Electrode disc electrically through a mica layer isolated and kept at the desired distance.
- the formation of electrodes takes place between the Outside of the second electrode and an outside Counter surface of the first electrode.
- the entire inside of the Pot including the electrodes and the pressure body is sealed to the outside by an insulating layer that is located approximately in the area of the open floor.
- she consists preferably made of molded plastic, e.g. a resin. An extinguishing gas is not available. Further joins such a spark gap no follow current and so that the problem of deleting a follow-up current does not arise
- the invention is based on the further object a spark gap arrangement according to the preamble of Claim 6 for performing the method according to one of the Claims 1 to 5, such that they act as an extinguishing spark gap can be used and in the event of a rollover and If a follow current arises, the best possible follow current extinguishing ability having.
- this is a spark gap arrangement provided with two electrodes, which according to DE-G 73 15 846 arranged in the interior of a closed housing are.
- This spark gap arrangement is thereby characterized in that the interior containing the electrodes is surrounded by a pressure-resistant housing arrangement, the volume of the interior dimensioned in such a way and on the amount of the expected follow-up current is matched that an increase in pressure due to the arc of the follow current of a gas provided in the interior to a multiple of atmospheric pressure is reached.
- This gas can Air or an extinguishing gas.
- Spark gap arrangement according to the invention also as a module in single and multi-pole housing variants for indoor and Outdoors, including explosion-proof Spark gap arrangements.
- the degree of pressure increase can not only depend on the volume of the Electrode space and the strength of the arc of the follow current, but also from the geometric design of the Depending on the interior, especially the electrodes.
- effective pressure increase is a pressure increase according to claim 7 the internal pressure to 10 - 60 bar is an advantage.
- the rest pressure on atmospheric pressure or a different one Value is adjustable. By choosing this resting pressure the response voltage of the spark gap over a wide range without design changes influence.
- the housing arrangement of enclosed an outer pressure body This pressure hull has the advantages that inexpensive manufacture is made possible and that no mechanical requirements the plastic element can be placed. It becomes a additional mechanical hold of the housing arrangement created and finally mechanical relief of the cover elements by supporting them on the edge of the pressure body and reached its inner wall.
- resulting Coverage can also be a kind of pressure relief valve for the Spark gap arrangement can be realized, the cover elements, which are preferably made of plastic to the Shear off flanges and the respective electrode foot to Attachment to the flanging comes. By the occurring Column, the excess pressure is released into the atmosphere.
- the features of claim 15 have the advantage of creation thermal insulation, being simple and way a separation of the mechanical and thermal Requirements is met.
- the two electrodes according to claim 17 For setting the response voltage of the spark gap are the two electrodes according to claim 17 by one Insulator kept at a distance. An increase in Distance leads to an increase in the response voltage.
- the Electrodes are at their base where the arc arises next and have one based on that diverging course in which up to the free ends of the electrodes towards their distance from each other enlarged. The migrates on these divergent electrodes Arc out to the ends. He will be there lengthened and its bow tension is increased. It is thus possible to influence the subsequent current extinguishing capacity, to design the electrodes so that the ignition of the Arc as a sliding discharge to those closest to each other lying areas of the electrode cone is initiated.
- One way to relieve the pressure in the interior exist according to claim 22 in that to adjust the internal pressure Housing arrangement to the atmospheric normal pressure loading and Vent channels are provided. By appropriate Sizing these channels can reduce the overpressure can be set over different times.
- the inner plastic element and / or Insulator made of a gas-emitting material.
- a first embodiment of the spark gap arrangement according to the invention is shown in Fig. 1 in longitudinal section and shows a hermetically sealed spark gap arrangement.
- Two electrodes 2a and 2b are arranged in the interior 1, which by an insulating piece 3 at a necessary distance a be held. This distance also determines the Response voltage of the spark gap.
- the distance a can by means not shown in detail can be changed to thus set different response voltages can, increasing the distance a to an increase the response voltage and this to a higher arc voltage leads.
- the insulating piece 3 can advantageously be made of a gas-emitting plastic (e.g. POM) and be designed so that the ignition of the arc as Sliding discharge at the facing ends of the electrode cones 2a and 2b is initiated. This will make the Arc causes itself to conform to the cone shape of the electrodes 2a and 2b conditioned opening angle expand and thus cheaper thermal and extinguishing properties to manufacture.
- POM gas-emitting plastic
- the interior 1 having the electrodes is surrounded by a pressure-resistant housing arrangement 5.
- This housing arrangement 5 is pressure-tightly delimited by two cover elements 4a and 4b on the end faces of the arrangement. The whole arrangement is guided and completed by the side surfaces an inner plastic element 5a.
- These parts 4a, 4b and 5a isolate the spark gap from one in this embodiment provided outer pressure body 6 of these parts 4a, 4b and 5a so that a pressure-resistant cohesion is made.
- the outer pressure body 6 preferably consists of a metallic one Pipe piece that by flanging its two, to the Lids 4a, 4b adjacent ends manufactured inexpensively can be.
- the inner plastic element 5a from a gas-emitting Material (e.g. POM).
- cover elements 4a and 4b which consist of an electrically non-conductive material. They have to withstand the very large forces which are generated by the pressure in the interior 1 or the housing arrangement 5 during the surge current discharge process and during the subsequent current quenching. This applies in particular to the embodiment according to FIG. 4, which will be explained in more detail below.
- thermally highly resilient plastics are generally very brittle and are therefore unsuitable for the application for the cover elements 4a and 4b, a functional separation is carried out according to the invention.
- the thermal insulation of the hot electrodes 2a and 2b between the cover elements 4a, 4b is carried out by a thermal cutting disk 7. This measure eliminates extreme thermal demands on the cover elements 4a and 4b.
- Corresponding ventilation channels 9 can be provided that the above Adjustment adjusted accordingly have small passage cross-sections.
- spark gap module Due to the fact that this module is a self-contained, non-blowing spark gap and therefore no force on another outer housing (e.g. NH fuse housing, Fig. 2) is exercised, there are many possible applications in less stable outer housing.
- the spark gap module according to the invention can be used as a standard assembly in different Housing variants can be integrated, as follows described and explained in more detail with reference to FIGS. 2 and 3 becomes.
- the spark gap arrangement can be relatively small. For example is the representation of spark gap arrangements in the 1 and 4 drawn on a scale of 3: 1, i.e. in the these spark gaps are correspondingly practical smaller than they are drawn here on a DIN A4 sheet are.
- Another advantage is the possibility of power supply over the axially extending in the direction of the longitudinal central axis 19-19 Connection rods 2 'of the electrodes 2a, 2b. Hereby harmful current forces are avoided.
- the Housing arrangements 5 of the invention must be pressure-resistant, that they also the internal pressure that occurs only for a very short time can withstand the relatively high surge current; while the internal pressure due to the explained follow current is much lower.
- the ones explained below other outer housing 11, 13 must be in contrast cannot withstand internal pressure as this is due to the spark gap arrangement is taken over.
- 2a is the spark gap arrangement according to the invention 10 installed in a NH fuse housing 11, which in closed (Fig. 2) and open (Fig. 2a) state is shown.
- the fuse housing 11 consists of two half-shells 11a and 11b and has pull-out tabs 12 on.
- the electrical contacting of the live conductor or earth is made by standardized NH contact blades, which are designated by 2a and 2b.
- 3a is the multi-pole variant of an arrangement of spark gap arrangements 10 in a special outer housing 13 shown. Since in the spark gap arrangements according to the invention that required in the prior art Blow out is eliminated, you can use the hermetically sealed Spark gaps (Fig. 1) or pressure-tight spark gaps (Fig. 4) arrange closer and an outer casing enclosing them make it less stable. 3 shows For example, three spark gap arrangements 10 in integrated into a space-saving, spatial arrangement. In order to there is a favorable utilization factor of the interior volume of the outer housing 13. The ground connection of the Individual items can be created through an inexpensive, common Earth plate 17 can be realized.
- the outer housing 13 can as shown in Fig. 3a, on snap fasteners 14 a standard mounting rail.
- connection options for cable feed 15 (Fig. 3a) or a comb rail 16 (Fig. 3) may be present.
- the connection options the live conductors are modular Distance dimension constructed so that the three on one side Connections 15 or 16 for the live conductors and on the opposite side of the earth connection 21 is provided.
- Fig. 4 shows a second embodiment of the invention Spark gap arrangement.
- this pressure-tight embodiment is the one for a hermetic seal according to Fig. 1 provided external pressure body 6 are omitted.
- the cover elements 4a and 4b glued along the common surface (route A-E), or the subareas (route B-C or D-E) with a smooth Provide thread and screwed. Instead, too riveting or pinning.
- the aforementioned Connection techniques can be combined.
- the material for the cover elements 4a and 4b is suitable Metal or a correspondingly highly stable plastic.
- plastic covers 4a and 4b is from Advantage that an insulating outer shell is created, which in can be an advantage in some applications (e.g. protection against contact). It can also be made from manufacturing or for reasons of cost, parts 5a, 4a and 4b to glue.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Spark Plugs (AREA)
- Emergency Protection Circuit Devices (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Fuses (AREA)
Description
- UB =
- Bogenspannung
- UA + UK =
- Anodenfall-/Katodenfallspannung
- l =
- Bogenlänge
- E =
- Bogenfeldstärke
Wenn die Spannung über die Zündspannung der Funkenstrecke steigt, erfolgt ein Überschlag zwischen den Elektroden an der Zündstelle. Unter Einwirkung des magnetischen Feldes der Löschspule, der senkrecht zu der Plattenebene wirkt, wird der Lichtbogen nach oben bewegt und nimmt an Länge zu. Wenn der Strom ausreichend lange anhält, verschieben sich die Fußpunkte des Lichtbogens aufwärts, passieren die Enden der Funkenstreckenteile und gehen weiter auf den Rücklaufwegen. Die ganze Zeit preßt der Lichtbogen ionisiertes, heißes Gas vor sich her. Wenn die Fußpunkte des Lichtbogens in die Nähe der Kanäle kommen, strömt Gas in die Kanäle und zu den Kanalmündungen auf den Auslaufwegen. In dieser Lage hat die Länge des Lichtbogens und damit auch der Lichtbogenspannungsabfall zugenommen. Wenn das heiße und ionisierte Gas zu der Zündstelle gelangt, sinkt die Spannungsfestigkeit dort auf einen Wert, der niedriger ist als der Lichtbogenspannungsabfall. Die Folge davon ist, daß die Funkenstrecke neu zündet, der Strom geht dann durch den neu gezündeten Lichtbogen, wobei der primäre, ausgedehnte Lichtbogen erlischt und der zweite auf dieselbe Art zunimmt wie der zuerst gezündete Lichtbogen. Dieser Verlauf wiederholt sich, bis der Strom auf einen so niedrigen Wert gesunken ist, daß der Gasstrom durch den Kanal nicht mehr groß genug ist, um eine Neuzündung zu verursachen, der Bogen erlischt und der Strom wird definitiv unterbrochen.
Im Gegensatz dazu wird beim "harten Schalten" gemäß dem oben gewürdigten Stand der Technik aufgrund der fehlenden Stromabhängigkeit des Löschvermögens der Strom immer mit der vollen Leistungsfähigkeit unterbrochen. Dies kann, speziell bei kleinen induktivem oder kapazitivem Strom, zum sogenannten "Stromabriß" führen. Dieser Stromabriß stellt eine Belastung der nachgeschalteten zu schützenden Anlagen oder Geräte dar und wird beim erfindungsgemäßen Verfahren vermieden.
- Fig. 1:
- eine erste Ausführungsform der erfindungsgemäßen Funkenstreckenanordnung im Längsschnitt,
- Fig. 2, 2a:
- eine Ansicht eines NH-Sicherungsgehäuses mit eingebauter Funkenstreckenanordnung im geschlossenen und geöffneten Zustand,
- Fig. 3, 3a:
- eine Ansicht eines Außengehäuses mit drei eingebauten Funkenstreckenanordnungen im geschlossenen und geöffneten Zustand und
- Fig. 4:
- eine zweite Ausführungsform der erfindungsgemäßen Funkenstreckenanordnung im Längsschnitt.
Claims (28)
- Verfahren zum Betreiben von Funkenstreckenanordnungen mit zwei Elektroden, die innerhalb eines Gehäuses angeordnet sind, wobei gegebenenfalls innerhalb des Gehäuses ein Löschgas vorgesehen ist, gekennzeichnet durch eine Abstimmung der Größe des zu löschenden Folgestromes auf das Volumen des Innenraumes des Gehäuses (5) derart, daß eine kurzzeitige Erhöhung des Innendruckes des Gehäuses (5) auf ein Vielfaches des atmosphärischen Druckes zur Beeinflussung des Folgestromlöschvermögens bewirkt wird, wobei die Druckerhöhung in dem die Elektroden aufweisenden Innenraum (1) durch den Lichtbogen des Folgestromes selbst produziert wird.
- Verfahren nach Anspruch 1, gekennzeichnet durch eine kurzzeitige Erhöhun des Innendruckes des Gehäuses auf 10·105 Pa - 60·105 Pa (10 - 60 bar).
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der im Gehäuse (5) auftretende Überdruck langsam abgebaut wird.
- Verfahren nach Anspruch 3, gekennzeichnet durch einen Abbau des Überdruckes innerhalb 3 bis 5 Stunden.
- Verfahren nach einem der Ansprüche 1 bis 4, gekennzeichnet durch die Verwendung von Luft oder Schwefelhexafluorid als Löschgas.
- Funkenstreckenanordnung mit zwei Elektroden, die im Innenraum eines geschlossenen Gehäuses angeordnet sind, zur Durchführung des Verfahrens nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der die Elektroden (2a, 2b) beinhaltende Innenraum (1) von einer druckfesten Gehäuseanordnung (5) umgeben ist, wobei das Volumen des Innenraumes derart bemessen und auf die Höhe des zu erwartenden Folgestromes abgestimmt ist, daß durch den Lichtbogen des Folgestromes eine Druckerhöhung eines im Innern des Elektrodenraumes vorgesehenen Gases, insbesondere eines Löschgases auf ein Vielfaches des atmosphärischen Druckes erreicht wird.
- Funkenstreckenanordnung nach Anspruch 6, dadurch gekennzeichnet, daß das Volumen des Innenraumes (1) derart bemessen und auf die Höhe des zu erwartenden Folgestromes abgestimmt ist, daß durch den Lichtbogen des Folgestromes eine Druckerhöhung eines im Innenraum (1) vorgesehenen Gases, insbesondere eines Löschgases auf 10·105 Pa - 60·105Pa (10 - 60 bar) erreicht wird.
- Funkenstreckenanordnung nach Anspruch 6 oder 7, gekennzeichnet durch ein hermetisch abgedichtetes Gehäuse, wobei der Ruhedruck des im Gehäuseinnenraum befindlichen Gases auf den atmosphärischen Druck oder einen davon abweichenden Wert eingestellt ist.
- Funkenstreckenanordnung nach Anspruch 7, gekennzeichnet durch ein quasi-druckdichtes Gehäuse mit einer Gasfüllung, deren Druck gleich dem atmosphärischen Druck ist.
- Funkenstreckenanordnung nach einem oder mehreren der Ansprüche 6 bis 9, dadurch gekennzeichnet, daß die bevorzugt etwa zylindrisch ausgebildete Gehäuseanordnung (5) an den Stirnflächen durch zwei Deckelelemente (4a, 4b) und an den Seitenflächen durch ein Kunststoffelement (5a) druckfest abgeschlossen ist.
- Funkenstreckenanordnung nach Anspruch 10, dadurch gekennzeichnet, daß der druckfeste Zusammenhalt der Deckelelemente (4a, 4b) und des Kunststoffelementes (5a) durch Verkleben, Verschrauben oder ähnliche Verbindungstechniken geschaffen ist.
- Funkenstreckenanordnung nach einem oder mehreren der Ansprüche 6 bis 9, dadurch gekennzeichnet, daß die Gehäuseanordnung (5) von einem äußeren Druckkörper (6) umschlossen ist, der aus einem metallischen Rohrstück besteht und die Gehäuseanordnung druckfest zusammenhält.
- Funkenstreckenanordnung nach Anspruch 12, dadurch gekennzeichnet, daß der Druckkörper (6) an seinen stirnseitigen Rändern umgebördelt ist (6') und die Deckelelemente (4a, 4b) umgreift.
- Funkenstreckenanordnung nach Anspruch 13, dadurch gekennzeichnet, daß der Durchmesser (d1) eines Elektrodenfußes (8) der jeweiligen Elektrode (2a, 2b) größer ist als die lichte Weite (d2) der umgebördelten Ränder (6') des Druckkörpers (6).
- Funkenstreckenanordnung nach einem oder mehreren der Ansprüche 6 bis 14, dadurch gekennzeichnet, daß zur thermischen Isolierung der heißen Elektroden (2a, 2b) und des Lichtbogens von den Deckelelementen (4a, 4b) je eine thermische Trennscheibe (7) dazwischen vorgesehen ist.
- Funkenstreckenanordnung nach einem oder mehreren der Ansprüche 6 bis 15, dadurch gekennzeichnet, daß die Stromzuführungen zu den Elektroden (2a, 2b) durch entlang der Mittellängsachse (19-19) der Funkenstreckenanordnung verlaufende axiale Anschlüsse (2') erfolgt.
- Funkenstreckenanordnung nach einem oder mehreren der Ansprüche 6 bis 16, dadurch gekennzeichnet, daß zur Einstellung der Ansprechspannung der Funkenstrecke die beiden Elektroden (2a, 2b) auf einen Abstand (a) gehalten sind und daß bevorzugt dieser Abstand (a) veränderbar ist.
- Funkenstreckenanordnung nach Anspruch 17, dadurch gekennzeichnet, daß der Abstand (a) als relativ kleiner, senkrecht zur Mittellängsachse (19-19) verlaufender Spalt zwischen den Elektroden (2a, 2b) ausgebildet ist.
- Funkenstreckenanordnung nach Anspruch 17, dadurch gekennzeichnet, daß die Wände (20) des Abstandes zwischen den Elektroden (2a, 2b) vom Spalt (a) her nach außen hin verlaufend zwischen sich eine konische Erweiterung des Luftspaltes bilden.
- Funkenstreckenanordnung nach einem der Ansprüche 6 bis 19, dadurch gekennzeichnet, daß der Abstand (a) zwischen den Elektroden (2a, 2b) durch ein zwischen den Elektroden vorgesehenes Isolierstück (3) fixiert ist.
- Funkenstreckenanordnung nach Anspruch 20, dadurch gekennzeichnet, daß das Isolierstück (3) bis zur inneren Stirnfläche des Spaltes (a) reicht.
- Funkenstreckenanordnung nach einem oder mehreren der Ansprüche 6 bis 21, dadurch gekennzeichnet, daß zum Angleichen des Innendruckes der Gehäuseanordnung (5) an den atmosphärischen Druck Be- und Entlüftungskanäle (9) vorgesehen sind.
- Funkenstreckenanordnung nach einem oder mehreren der Ansprüche 10 bis 22, dadurch gekennzeichnet, daß das innere Kunststoffelement (5a) und/oder das Isolierstück (3) aus einem gasabgebenden Werkstoff bestehen.
- Funkenstreckenanordnung nach einem oder mehreren der Ansprüche 6 bis 23, dadurch gekennzeichnet, daß die Funkenstreckenanordnung in Art eines Moduls (10) in einem Außengehäuse (11; 13) angeordnet ist.
- Funkenstreckenanordnung nach Anspruch 24, dadurch gekennzeichnet, daß das Außengehäuse ein N-H-Sicherungsgehäuse (11) ist, das aus zwei Halbschalen (11a, 11b) bestehen kann.
- Funkenstreckenanordnung nach Anspruch 24, dadurch gekennzeichnet, daß mehrere, beispielsweise drei, Funkenstreckenanordnungen (10) in einem gemeinsamen Außengehäuse (13) angeordnet sind.
- Funkenstreckenanordnung nach Anspruch 26, dadurch gekennzeichnet, daß deren Außengehäuse (13) über Schnappbefestigungen (14) an einer Standardtragschiene montierbar ist.
- Funkenstreckenanordnung nach Anspruch 26 oder 27, gekennzeichnet durch Anschlußmöglichkeiten für Kabeleinspeisung (15) oder eine Kammschiene (16) sowie einen Erdanschluß (17).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19604947 | 1996-02-10 | ||
| DE19604947A DE19604947C1 (de) | 1996-02-10 | 1996-02-10 | Verfahren zur Beeinflussung des Folgestromlöschvermögens von Funkenstreckenanordnungen und Funkenstreckenanordnungen hierfür |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0789434A1 EP0789434A1 (de) | 1997-08-13 |
| EP0789434B1 true EP0789434B1 (de) | 2000-07-05 |
Family
ID=7785086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96118511A Revoked EP0789434B1 (de) | 1996-02-10 | 1996-11-19 | Verfahren zur Beeinflussung des Folgestromlöschvermögens von Funkenstreckenanordnungen und Funkenstreckenanordnungen hierfür |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0789434B1 (de) |
| AT (1) | ATE194438T1 (de) |
| DE (3) | DE19604947C1 (de) |
| DK (1) | DK0789434T3 (de) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19818674B4 (de) * | 1998-04-27 | 2004-04-29 | Phoenix Contact Gmbh & Co. Kg | Überspannungsschutzelement |
| DE10008764A1 (de) * | 1999-03-04 | 2000-09-28 | Phoenix Contact Gmbh & Co | Überspannungsschutzeinrichtung |
| DE10018012B4 (de) * | 2000-02-22 | 2005-02-24 | Dehn + Söhne Gmbh + Co. Kg | Druckfest gekapselte Funkenstreckenanordnung zum Ableiten von schädlichen Störgrößen durch Überspannungen |
| DE10066231B4 (de) * | 2000-02-22 | 2006-10-12 | Dehn + Söhne Gmbh + Co. Kg | Druckfest gekapselte Funkenstreckenanordnung zum Ableiten von schädlichen Störgrößen durch Überspannungen |
| DE10025239C2 (de) * | 2000-05-22 | 2002-06-27 | Dehn & Soehne | Teil- oder vollgekapselte Funkenstreckenableiter |
| EP1338064B1 (de) | 2000-11-28 | 2011-09-28 | Dehn + Söhne Gmbh + Co Kg | Kompaktanordnung für mehrpolige stossstromfeste überspannungsableiter sowie gekapaelter überspannungsableiter hierfür |
| DE10058977B4 (de) * | 2000-11-28 | 2005-02-10 | Dehn + Söhne Gmbh + Co. Kg | Mehrpoliger stoßstromfester Überspannungsableiter |
| DE10118210B4 (de) * | 2001-04-11 | 2012-02-23 | Dehn + Söhne Gmbh + Co. Kg | Gekapselter Überspannungsableiter mit einer Funkenstreckenanordnung |
| DE10157817B4 (de) * | 2000-11-29 | 2011-12-22 | Dehn + Söhne Gmbh + Co. Kg | Modulares System zum Aufbau einer Trennfunkenstrecke zur Anpassung der Trennfunkenstrecke an unterschiedliche elektrische und mechanische Anforderungen |
| ATE391355T1 (de) * | 2001-08-21 | 2008-04-15 | Dehn & Soehne | Gekapselter, netzfolgestrom begrenzender überspannungsableiter auf funkenstreckenbasis |
| DE10164025B4 (de) * | 2001-08-21 | 2005-08-25 | Dehn + Söhne Gmbh + Co. Kg | Gekapselter, Netzfolgestrom begrenzender Überspannungsableiter auf Funkenstreckenbasis |
| DE10212697A1 (de) * | 2001-12-17 | 2003-07-10 | Phoenix Contact Gmbh & Co | Überspannungsschutzeinrichtung |
| DE10338835B4 (de) * | 2003-08-21 | 2016-06-02 | Phoenix Contact Gmbh & Co. Kg | Überspannungsschutzeinrichtung |
| 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 |
| DE10357945A1 (de) | 2003-12-09 | 2005-07-14 | Phoenix Contact Gmbh & Co. Kg | Überspannungsschutzeinrichtung |
| DE102005015401B4 (de) * | 2005-01-10 | 2014-03-20 | Dehn + Söhne Gmbh + Co. Kg | Überspannungsableiter mit zwei divergierenden Elektroden und einer zwischen den Elektroden wirkenden Funkenstrecke |
| DE102007012760B4 (de) * | 2006-09-22 | 2015-03-05 | Dehn + Söhne Gmbh + Co. Kg | Überspannungsableiter mit Reiheneinbaugehäuse |
| DE102007015930A1 (de) * | 2007-01-04 | 2008-07-10 | Dehn + Söhne Gmbh + Co. Kg | Gekapselte, druckfest ausgeführte, nicht hermetisch dichte, rotationssymmetrische Hochleistungsfunkenstrecke |
| DE102008031113B4 (de) * | 2008-01-08 | 2015-03-05 | Dehn + Söhne Gmbh + Co. Kg | Funkenstreckenanordnung mit mindestens zwei Elektroden |
| DE102014104576B4 (de) * | 2014-04-01 | 2016-02-11 | Phoenix Contact Gmbh & Co. Kg | Überspannungsableiter |
| DE102017119288B4 (de) | 2017-05-10 | 2023-03-23 | Dehn Se | Gekapselter Überspannungsableiter auf Funkenstreckenbasis |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1282153B (de) * | 1959-10-27 | 1968-11-07 | Ind D Soule Ets | Loeschfunkenstrecke |
| SE328932B (de) * | 1969-02-21 | 1970-09-28 | Asea Ab | |
| US3849704A (en) * | 1972-10-27 | 1974-11-19 | Franklin Electric Co Inc | Lightning arrestor |
| DE7315846U (de) | 1973-04-26 | 1973-09-13 | Dehn & Soehne | Geschlossene Funkenstrecke |
| DE2934236C2 (de) * | 1979-08-24 | 1983-02-24 | Aeg-Telefunken Ag, 1000 Berlin Und 6000 Frankfurt | Überspannungsableiter mit Funkenstrecke |
| DD279120A1 (de) * | 1988-12-28 | 1990-05-23 | Energieversorgung Ingbetrieb | Druckentlastungsvorrichtung fuer ueberspannungsableiter in mittelspannungsanlagen |
-
1996
- 1996-02-10 DE DE19604947A patent/DE19604947C1/de not_active Expired - Lifetime
- 1996-02-10 DE DE19655119A patent/DE19655119C2/de not_active Expired - Lifetime
- 1996-11-19 DK DK96118511T patent/DK0789434T3/da active
- 1996-11-19 AT AT96118511T patent/ATE194438T1/de not_active IP Right Cessation
- 1996-11-19 EP EP96118511A patent/EP0789434B1/de not_active Revoked
- 1996-11-19 DE DE59605543T patent/DE59605543D1/de not_active Revoked
Also Published As
| Publication number | Publication date |
|---|---|
| DK0789434T3 (da) | 2000-11-13 |
| ATE194438T1 (de) | 2000-07-15 |
| DE19655119C2 (de) | 2001-01-25 |
| DE19604947C1 (de) | 1997-07-10 |
| EP0789434A1 (de) | 1997-08-13 |
| DE59605543D1 (de) | 2000-08-10 |
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