EP1052665A2 - Short-circuiter - Google Patents

Short-circuiter Download PDF

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Publication number
EP1052665A2
EP1052665A2 EP00107216A EP00107216A EP1052665A2 EP 1052665 A2 EP1052665 A2 EP 1052665A2 EP 00107216 A EP00107216 A EP 00107216A EP 00107216 A EP00107216 A EP 00107216A EP 1052665 A2 EP1052665 A2 EP 1052665A2
Authority
EP
European Patent Office
Prior art keywords
short
circuiting
circuiter
centering
rail
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00107216A
Other languages
German (de)
French (fr)
Other versions
EP1052665B1 (en
EP1052665A3 (en
Inventor
Lutz Thilker
Wolfgang Erven
Albert Zacharias
Thomas Daube
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eaton Industries GmbH
Original Assignee
Moeller GmbH
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Filing date
Publication date
Application filed by Moeller GmbH filed Critical Moeller GmbH
Publication of EP1052665A2 publication Critical patent/EP1052665A2/en
Publication of EP1052665A3 publication Critical patent/EP1052665A3/en
Application granted granted Critical
Publication of EP1052665B1 publication Critical patent/EP1052665B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H39/004—Closing switches

Definitions

  • the invention relates to a short circuiter according to the preamble of claim 1.
  • the object of the invention is a short circuiter according to the preamble of To create claim 1, which is compact, has a good piston guide and no explosive device needed.
  • the object of the invention is characterized by the characterizing features of Claim 1 solved, while in the subclaims particularly advantageous Developments of the invention are characterized.
  • Fig. 1 shows the ready-to-connect short-circuiter 23 with three flat side by side arranged connecting rails 3 in the form of flat rails with corresponding Connection holes 15, as are common in low-voltage plant construction.
  • the middle connecting bar 3 is at the end or at the opposite end of the Connection holes 15, electrically connected to a connecting bar 2, wherein the connecting rail 2 in the non-tripped state from the connecting rails 3, is isolated.
  • the rail arrangement is E-shaped.
  • At the ends of the connecting rails 3 are two short-circuiting units 16, 17 with each arranged a gas generator drive based on nitrocellulose, as in Airbags or belt tensioners is used.
  • the connecting rails 3, the connecting rail 2 and others described later Insulating parts are arranged in a sandwich-like E-shaped package.
  • the short-circuiting units 16 and 17 When the short-circuiting units 16 and 17 are ignited, a three-pole short circuit arises which extinguishes an arcing fault within a millisecond.
  • the short-circuiting units 16 and 17 are controlled by evaluation electronics, which are provided with fast current and light sensors for arc fault detection. The control can be done with any kind of sensors.
  • the short-circuiter can also be used to protect consumers and equipment in the event of a short-circuit.
  • FIG. 2 shows a sectional illustration of the short-circuiting unit
  • FIG. 3 shows an enlargement.
  • the short-circuiting unit 16 or 17 consists of a gas generator 6, an encapsulation 18 made of insulating material for the gas generator 6 with a union nut, not shown.
  • the gas generator 6 is embedded gas-tight in the encapsulation 18.
  • the connecting rails 3 are embedded in a lower part 9 made of insulating material and screwed to this part.
  • the lower part 9 has depressions 19 which have approximately the same depth as the thickness of the connecting rails 3.
  • Fastening flanges 21 with fastening bores 22 are formed on both sides of the lower part 9, ie to the left and right of the connecting rails 3, which are provided for fastening the short-circuiting device 23 in a switchgear assembly.
  • the two outer connecting rails are provided in the region of the short-circuiting units 16, 17 with a connecting rail bore 24 which have a phase 25 for a centering element 1.
  • the lower part 9 is provided with a lower part bore 26 which has a slightly larger diameter than the connecting rail bore 24.
  • the short-circuiter has a centering element 1 made of insulating material for centering a connecting bar 3 with a connecting bar 2.
  • the centering element 1 has an insulating membrane 4 which is penetrated by a short-circuiting piston 5 or centering element when the pressure element 6 is ignited.
  • the centering part 1 consists of an annular sleeve 11 which is larger than that Diameter of the short-circuiting piston 5 is.
  • the centering part 1 has one on the sleeve 11 radially outwardly formed insulating collar 12.
  • the insulating membrane 4 is provided with a predetermined breaking point 29, as in FIG. 3 is shown.
  • a holding part 7 has a chimney-like first region 30, in which the Gas generator 6 is held.
  • this first area 30 there is a preliminary volume 31 in the kind of a chimney arranged.
  • the gas generator 6 is embedded in the upper part of the first area in a cylindrical receptacle 32 which has a larger diameter than the area of the pre-volume 31.
  • the first area is provided with a holding phase 33, on which the gas generator 6 is supported and pressed against it by a union nut (not shown in more detail), similar to what is shown in DE 19746815 (FIG. 3, reference number 13).
  • the reference number 34 indicates the thread required for this.
  • the preliminary volume 31 is approximately 1 cm 3 , the gas generator 6 being optimized for this volume.
  • the second area 35 is provided for the mounting and insulation of the connecting bar 2 and is slipped over the connecting bar 2 like an insulating jacket and connected to it by screw connections 36.
  • the connecting rail 2 is relatively high. The height is approximately two thirds of the width so that the short-circuiting piston 5 can be almost completely embedded in the connecting rail.
  • a round collar 37 is formed, which in a Through hole 38 of the connecting rail 2 protrudes, the Short-circuiting piston 5 is arranged in this through bore 38.
  • the gases are enclosed gas-tight by the collar 37, and a seal on grooves 39 provided for this purpose can also be used.
  • the second region 35 extends up to the connecting rails 3.
  • a rectangular, third area 40 such as a screen, which isolates the connecting rails 3 and almost reaches the housing dimension.
  • the lower part 9 and the connecting rails 3 form a sandwich-like package with the transverse connecting rail 2 and the holding part 7.
  • the hood 10 is arranged over this package around the third region 40. Together with the package, it forms a housing in which the connecting plugs and the lines for gas generators are arranged in a protected manner.
  • the connectors are arranged directly under the hood 10 (not shown) so that they are not protected against being pulled out unintentionally.
  • the hood 10 is also provided with a cable duct and strain relief for the gas generator line.
  • the middle connecting bar 3 is, as already described, electrical connected to the connecting bar 2 to short-circuit between the two bring about external phases.
  • the short-circuiting piston 5 is guided and held in a connecting rail 2, the gas generator 6 in the holding part 7 having a pre-volume 31 Insulating material is embedded, which is attached directly to the busbar 2.
  • the short-circuiting piston 5 is at one end of the holding part 7 and at the other end held by a centering element 1 made of insulating material, the Centering element 1 between the connecting rail 2 and a connecting rail 3 is arranged.
  • the centering part 1 consists of a sleeve 11, an insulating membrane 4 with the Predetermined breaking point 29 and a radially outwardly formed on the sleeve 11 Insulating collar 12.
  • the preliminary volume 31 is approximately 1 cm 3 , the gas pressure of the gas generator being at least 500 bar.
  • the short circuiter has at least one lower part 9 made of insulating material, in which the Connection rails 3 are embedded and fastened, i.e. that two lower parts or Two housings can be present, each with a gas generator unit 16, 17 exhibit.
  • the holding part 7 consists entirely of insulating material.
  • the connecting rail 2 is in embedded and fastened to the holding part 7, the lower part 9 with the holding part 7 are attached in such a way that at least one insulating short-circuiting housing is produced.
  • the holding part 7 is provided with a hood 10.
  • the short-circuiting piston 6 has a cylindrical region 41 and a slightly conical region 42 at the front. Through the centering element 1, the connecting rail bore 24 and the through bore 38 of the connecting rail 2 are exactly aligned. Through the phase 25 of the connecting bar 2 and the connecting bar phase 43, in which the sleeve 11 is located, a through hole is created which is only interrupted by the insulating membrane 4. After the insulating membrane 4 has been torn off, the short-circuiting piston 6 can contact the connecting rail unhindered until it sticks there because either the connecting rail bore is also conical or the diameter is smaller than the cylindrical region 41.
  • the short-circuiting piston 6 is only removed around the very thin insulating membrane, which leads to a very short switching time.
  • the centering element 1 acts like a thimble-like insulating cap that holds the short-circuiting piston 6.
  • the invention specifies primarily for use as a central protective organ in portable and stationary power distribution systems, both in Point distributor e.g. Main distributor, as well as in line distributors e.g. Busbar trunking in of low, medium and high voltage technology.
  • Point distributor e.g. Main distributor
  • line distributors e.g. Busbar trunking in of low, medium and high voltage technology.
  • the invention can also be used as decentralized protection organ e.g. in battery, emergency power, compensation, and railway systems are used.
  • the basic principle is based on the fact that a gas generator is defined by a gas generator Ignition current is activated, delivers a defined volume of gas in a very short time.
  • the Space in which the gas volume develops is sufficiently dense and firm that a pressure of up to 900 bar builds up.
  • the pressure is the drive for one Closing process used.
  • the conductors are for a short-circuit current of over 100kA designed for a period of at least 500 ms.

Landscapes

  • Gas-Insulated Switchgears (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Fuses (AREA)
  • Actuator (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

A short-circuiting device, with a short-circuiting piston (5) driven by a gas generator (6) for electrically connecting a terminal bar (3) to a connection bar (2), is new. A short-circuiting device has a short-circuiting piston (5) which is guided and retained in a connection bar (2) and which is driven, for electrical connection of a terminal bar (3) to the connection bar (2), by a gas generator (6) embedded in an insulating holder (7) which has a front space (31) and which is connected to the connection bar (2).

Description

Die Erfindung betrifft ein Kurzschließer nach dem Oberbegriff des Anspruches 1.The invention relates to a short circuiter according to the preamble of claim 1.

Aus der DE 94 19 141 ist ein Kurzschließer mit Kurzschließertpatronen bekannt, der ein zylindrisches Unterteil aus Kupfer aufweist, in dem ein Kurzschließerbolzen und ein Sprengsatz integriert sind. Nachteilig bei dieser Lösung ist, daß ein Kurzschließer mit einer derartigen Patrone relativ groß ist, der Bolzen ungenau geführt wird und ein aus bekannten Gründen nachteiliger Sprengsatz vorgesehen ist.From DE 94 19 141 a short-circuiter with short-circuit cartridges is known has a cylindrical lower part made of copper, in which a short-circuiting bolt and an explosive device are integrated. The disadvantage of this solution is that a short-circuiter with such a cartridge is relatively large, the pin is guided inaccurately and a disadvantageous explosive device is provided for known reasons.

Aufgabe der Erfindung ist es, ein Kurzschließer nach dem Oberbegriff des Anspruches 1 zu schaffen, der kompakt ist, eine gute Kolbenführung aufweist und kein Sprengsatz benötigt.The object of the invention is a short circuiter according to the preamble of To create claim 1, which is compact, has a good piston guide and no explosive device needed.

Die Aufgabe der Erfindung wird durch die kennzeichnenden Merkmale des Anspruches 1 gelöst, während in den Unteransprüchen besonders vorteilhafte Weiterbildungen der Erfindung gekennzeichnet sind.The object of the invention is characterized by the characterizing features of Claim 1 solved, while in the subclaims particularly advantageous Developments of the invention are characterized.

Anhand der Zeichnung, in der ein Ausführungsbeispiel dargestellt ist, sollen die Erfindung, weitere Ausgestaltungen und Verbesserungen der Erfindung und weitere Vorteile näher beschrieben und erläutert werden. Based on the drawing, in which an embodiment is shown, the Invention, further refinements and improvements of the invention and others Advantages are described and explained in more detail.

Es zeigt:

Fig. 1
eine perspektivische auseinandergezogene Darstellung des Kurzschließers,
Fig. 2
eine Schnittdarstellung des Kurzschließers,
Fig. 3
eine vergrößerte Schnittdarstellung,
Fig. 4
eine perspektivische auseinandergezogene Darstellung des Kurzschließerkolbens, des Zentrierelementes und der Isolierfolie von unten und
Fig. 5
eine perspektivische auseinandergezogene Darstellung des Kurzschließerkolbens, des Zentrierelementes und der Isolierfolie von oben.
It shows:
Fig. 1
a perspective exploded view of the short circuiter,
Fig. 2
a sectional view of the short circuiter,
Fig. 3
an enlarged sectional view,
Fig. 4
a perspective exploded view of the short-circuiting piston, the centering element and the insulating film from below and
Fig. 5
a perspective exploded view of the short-circuiting piston, the centering element and the insulating film from above.

Die Fig. 1 zeigt den anschlußfertigen Kurzschließer 23 mit drei flach nebeneinander angeordneten Anschlußschienen 3 in Form von Flachschienen mit entsprechenden Anschlußbohrungen 15, wie sie in dem Niederspannungs-Anlagenbau üblich sind.Fig. 1 shows the ready-to-connect short-circuiter 23 with three flat side by side arranged connecting rails 3 in the form of flat rails with corresponding Connection holes 15, as are common in low-voltage plant construction.

Die mittlere Anschlußschiene 3 ist am Ende, bzw. am gegenüberliegenden Ende der Anschlußbohrungen 15, mit einer Verbindungsschiene 2 elektrisch verbunden, wobei die Verbindungsschiene 2 im nichtausgelösten Zustand von den Anschlußschienen 3, isoliert ist. Die Schienenanordnung ist E-förmig.The middle connecting bar 3 is at the end or at the opposite end of the Connection holes 15, electrically connected to a connecting bar 2, wherein the connecting rail 2 in the non-tripped state from the connecting rails 3, is isolated. The rail arrangement is E-shaped.

An den Enden der Anschlußschienen 3 sind zwei Kurzschließereinheiten 16, 17 mit jeweils einem Gasgeneratorantrieb auf Nitrocellulose-Basis angeordnet, wie er bei Airbags oder Gurtstraffern verwendet wird. At the ends of the connecting rails 3 are two short-circuiting units 16, 17 with each arranged a gas generator drive based on nitrocellulose, as in Airbags or belt tensioners is used.

Die Anschlußschienen 3, die Verbindungsschiene 2 und weitere später beschriebene Isolierteile sind zu einem sandwichartigen E-förmigen Paket angeordnet.The connecting rails 3, the connecting rail 2 and others described later Insulating parts are arranged in a sandwich-like E-shaped package.

Bei Zündung der Kurzschließereinheiten 16 und 17 entsteht ein dreipoliger Kurzschluß, der innerhalb einer Millisekunde einen Störlichtbogen löscht.
Die Kurzschließereinheiten 16 und 17 werden durch eine Auswerteelektonik angesteuert, die mit schnellen Strom- und Lichtsensoren zur Störlichtbogenerkennung versehen ist. Die Ansteuerung kann mit jeder Art von Sensoren erfolgen. Ebenso ist der Kurzschließer zum Schutz von Verbrauchern und Betriebsmittel bei Kurzschluß einsetzbar.When the short-circuiting units 16 and 17 are ignited, a three-pole short circuit arises which extinguishes an arcing fault within a millisecond.
The short-circuiting units 16 and 17 are controlled by evaluation electronics, which are provided with fast current and light sensors for arc fault detection. The control can be done with any kind of sensors. The short-circuiter can also be used to protect consumers and equipment in the event of a short-circuit.

In der Fig. 2 ist eine Schnittdarstellung der Kurzschließereinheit gezeigt, wobei Fig. 3 eine Vergrößerung zeigt.FIG. 2 shows a sectional illustration of the short-circuiting unit, FIG. 3 shows an enlargement.

Die Kurzschließereinheit 16 bzw. 17 besteht aus einem Gasgenerator 6, einer Kapselung 18 aus Isolierstoff für den Gasgenerator 6 mit einer nicht dargestellten Überwurfmutter.
Der Gasgenerator 6 ist in der Kapselung 18 gasdicht eingebettet.The short-circuiting unit 16 or 17 consists of a gas generator 6, an encapsulation 18 made of insulating material for the gas generator 6 with a union nut, not shown.
The gas generator 6 is embedded gas-tight in the encapsulation 18.

Die Anschlußschienen 3 sind in einem Unterteil 9 aus Isolierstoff eingebettet und mit diesem Teil verschraubt. Das Unterteil 9 weist Einsenkungen 19, die etwa die gleiche Tiefe aufweisen wie die Dicke der Anschlußschienen 3. An einer Seite des Unterteils 9 sind Öffnungen 20 für die Durchführung der Anschlußschienen angeordnet, wie in Fig. 1 zu sehen ist.
An beiden Seiten des Unterteils 9, d.h. links und rechts von den Anschlußschienen 3 sind Befestigungsflansche 21 mit Befestigungsbohrungen 22 angeformt, die zur Befestigung des Kurzschließers 23 in einer Schaltanlage vorgesehen sind. The connecting rails 3 are embedded in a lower part 9 made of insulating material and screwed to this part. The lower part 9 has depressions 19 which have approximately the same depth as the thickness of the connecting rails 3. On one side of the lower part 9 there are openings 20 for the passage of the connecting rails, as can be seen in FIG. 1.
Fastening flanges 21 with fastening bores 22 are formed on both sides of the lower part 9, ie to the left and right of the connecting rails 3, which are provided for fastening the short-circuiting device 23 in a switchgear assembly.

Die beiden äußeren Anschlußschienen sind im Bereich der Kurzschließereinheiten 16,17 mit einer Anschlußschienenbohrung 24 versehen, die eine Phase 25 für ein Zentrierelement 1 aufweisen.
Direkt unterhalb der Anschlußschienenbohrung 24 ist das Unterteil 9 mit einer Unterteilbohrung 26 versehen, die einen etwas größerer Durchmesser als die Anschlußschienenbohrung 24 aufweist.The two outer connecting rails are provided in the region of the short-circuiting units 16, 17 with a connecting rail bore 24 which have a phase 25 for a centering element 1.
Directly below the connecting rail bore 24, the lower part 9 is provided with a lower part bore 26 which has a slightly larger diameter than the connecting rail bore 24.

Auf der rechten und der linken Anschlußschiene 3 liegt eine dünne Isolierfolie 27 auf die breiter als die Anschlußschienenbreite ist und ein Folienloch 28 aufweist, durch das ein Zentrienelement 1 eingesetzt werden kann .On the right and left connecting rails 3 there is a thin insulating film 27 which is wider than the connecting rail width and has a film hole 28, through that a center element 1 can be used.

Der Kurzschließer weist ein Zentrierelement 1 aus Isoliermaterial zur Zentrierung von einer Anschlußschiene 3 mit einer Verbindungsschiene 2 auf.
Das Zentrierelement 1 weist eine Isoliermembran 4 auf die bei Zündung des Druckelements 6 von einem Kurzschließerkolben 5 bzw. Zentierelement durchstoßen wird.The short-circuiter has a centering element 1 made of insulating material for centering a connecting bar 3 with a connecting bar 2.
The centering element 1 has an insulating membrane 4 which is penetrated by a short-circuiting piston 5 or centering element when the pressure element 6 is ignited.

Zwischen der Anschlußschiene 3 und der Stromschiene 2 ist eine Isolierfolie 27 angeordnet ist, die ein Folienloch 28 aufweist, das größer als der Durchmesser des Kurzschließerkolbens 5 ist und in das das Zentierelement 1 eingesetzt werden kann.There is an insulating film 27 between the connecting bar 3 and the busbar 2 is arranged, which has a film hole 28 which is larger than the diameter of the Short-circuiting piston 5 and in which the centering element 1 can be used.

Das Zentrierteil 1 besteht aus einer ringförmigen Hülse 11, die größer als der Durchmesser des Kurzschließerkolbens 5 ist, besteht. Das Zentrierteil 1 weist einen an der Hülse 11 radial nach außen angeformten Isolierkragen 12 auf.The centering part 1 consists of an annular sleeve 11 which is larger than that Diameter of the short-circuiting piston 5 is. The centering part 1 has one on the sleeve 11 radially outwardly formed insulating collar 12.

Die Isoliermembrane 4 ist mit einer Sollbruchstelle 29 versehen, wie in Fig. 3 dargestellt ist. The insulating membrane 4 is provided with a predetermined breaking point 29, as in FIG. 3 is shown.

Ein Halteteil 7 weist einen kaminartigen ersten Bereich 30 auf, in dem der Gasgenerator 6 gehalten ist. In diesem ersten Bereich 30 ist ein Vorvolumen 31 in der Art eines Kaminschachtes angeordnet.A holding part 7 has a chimney-like first region 30, in which the Gas generator 6 is held. In this first area 30 there is a preliminary volume 31 in the Kind of a chimney arranged.

Der Gasgenerator 6 ist in dem oberen Teil des ersten Bereichs in einer zylindrischen Aufnahme 32 eingebettet, die einen größeren Durchmesser aufweist als der Bereich des Vorvolumens 31.
Der erste Bereich ist mit einer Haltephase 33 versehen, an der sich des Gasgenerator 6 abstüzt und gegen diese durch eine nicht näher gezeigte Überwurfmutter gedrückt wird, ähnlich wie in der DE 19746815 (Fig. 3, Bezugszeichen 13) gezeigt ist. Mit dem Bezugszeichen 34 ist das hierfür erforderliche Gewinde angedeutet.The gas generator 6 is embedded in the upper part of the first area in a cylindrical receptacle 32 which has a larger diameter than the area of the pre-volume 31.
The first area is provided with a holding phase 33, on which the gas generator 6 is supported and pressed against it by a union nut (not shown in more detail), similar to what is shown in DE 19746815 (FIG. 3, reference number 13). The reference number 34 indicates the thread required for this.

Das Vorvolumen 31 beträgt ca. 1 cm3 , wobei der Gasgenerator 6 für dieses Volumen optimiert ist.The preliminary volume 31 is approximately 1 cm 3 , the gas generator 6 being optimized for this volume.

Der zweite Bereich 35 ist für die Halterung und Isolierung der Verbindungsschiene 2 vorgesehen und ist wie ein Isoliermantel über der Verbindungschiene 2 übergestülpt und mit dieser durch Schraubenverbindungen 36 verbunden.
Die Verbindungsschiene 2 ist relativ hoch. Die Höhe beträgt etwa zwei Drittel der Breite, damit der Kurzschließerkolben 5 nahezu vollständig in der Verbindungsschiene eingebettet werden kann.The second area 35 is provided for the mounting and insulation of the connecting bar 2 and is slipped over the connecting bar 2 like an insulating jacket and connected to it by screw connections 36.
The connecting rail 2 is relatively high. The height is approximately two thirds of the width so that the short-circuiting piston 5 can be almost completely embedded in the connecting rail.

In einem zweiten Bereich 35 ist ein runder Kragen 37 angeformt, der in eine Durchgangsbohrung 38 der Verbindungsschiene 2 hineinragt, wobei der Kurzschließerkolben 5 in dieser Durchgangsbohrung 38 angeordnet ist.In a second area 35, a round collar 37 is formed, which in a Through hole 38 of the connecting rail 2 protrudes, the Short-circuiting piston 5 is arranged in this through bore 38.

Durch den Kragen 37 sind die Gase gasdicht eingeschlossen, wobei auch eine Dichtung an hierfür vorgesehenen Rillen 39 eingesetzt werden kann.
Der zweite Bereich 35 erstreckt sich bis zu den Anschlußschienen 3. The gases are enclosed gas-tight by the collar 37, and a seal on grooves 39 provided for this purpose can also be used.
The second region 35 extends up to the connecting rails 3.

Um den zweiten Bereich 35 ist ein rechteckförmiger dritter Bereich 40, wie ein Schirm, angeordnet, welcher die Anschlußschienen 3 isolierend abschirmt und fast die Gehäuseabmessung erreicht.
Das Unterteil 9 und die Anschlußschienen 3 bilden mit der querliegenden Verbindungsschiene 2 und dem Halteteil 7 ein sandwichartiges Paket.
Über diesem Paket ist um den dritten Bereich 40 die Haube 10 angeordnet. Sie bildet zusammen mit dem Paket ein Gehäuse, in dem die Anschlußstecker und die Leitungen für Gasgeneratoren geschützt angeordnet sind. Die Anschlußstecker sind direkt unter der Haube 10 angeordnet (nicht dargestellt), damit sie nicht gegen ein ungewolltes herausziehen geschützt sind. Die Haube 10 ist weiterhin mit einer Kabeldurchführung und Zugentlastung für die Gasgeneratorleitung versehen.Arranged around the second area 35 is a rectangular, third area 40, such as a screen, which isolates the connecting rails 3 and almost reaches the housing dimension.
The lower part 9 and the connecting rails 3 form a sandwich-like package with the transverse connecting rail 2 and the holding part 7.
The hood 10 is arranged over this package around the third region 40. Together with the package, it forms a housing in which the connecting plugs and the lines for gas generators are arranged in a protected manner. The connectors are arranged directly under the hood 10 (not shown) so that they are not protected against being pulled out unintentionally. The hood 10 is also provided with a cable duct and strain relief for the gas generator line.

Quer über den beiden äußeren Anschlußschienen 3 ist jeweils eine dünne Isolierfolie 27 zur Isolation der Verbindungsschiene 2 mit den beiden äußeren Anschlußschienen 3 angeordnet. Die mittlere Anschlußschiene 3 ist, wie bereits beschrieben, elektrisch mit der Verbindungsschiene 2 verbunden, um einen Kurzschluß zwischen den beiden äußeren Phasen herbeizuführen.There is a thin insulating film across each of the two outer connecting rails 3 27 for isolating the connecting bar 2 with the two outer connecting bars 3 arranged. The middle connecting bar 3 is, as already described, electrical connected to the connecting bar 2 to short-circuit between the two bring about external phases.

Der Kurzschließerkolben 5 ist in einer Verbindungsschiene 2 geführt und gehalten, wobei der Gasgenerator 6 in dem ein Vorvolumen 31 aufweisendes Halteteil 7 aus Isoliermaterial eingebettet ist, das direkt mit der Stromschiene 2 befestigt ist.The short-circuiting piston 5 is guided and held in a connecting rail 2, the gas generator 6 in the holding part 7 having a pre-volume 31 Insulating material is embedded, which is attached directly to the busbar 2.

Der Kurzschließerkolben 5 wird an dem einen Ende von dem Halteteil 7 und an dem anderen Ende von einem Zentrierelement 1 aus Isoliermaterial gehalten, wobei das Zentrierelement 1 zwischen der Verbindungsschiene 2 und einer Anschlußschiene 3 angeordnet ist.The short-circuiting piston 5 is at one end of the holding part 7 and at the other end held by a centering element 1 made of insulating material, the Centering element 1 between the connecting rail 2 and a connecting rail 3 is arranged.

Das Zentrierteil 1 besteht aus einer Hülse 11, einer Isoliermembrane 4 mit der Sollbruchstelle 29 und einem an der Hülse 11 radial nach außen angeformten Isolierkragen 12. The centering part 1 consists of a sleeve 11, an insulating membrane 4 with the Predetermined breaking point 29 and a radially outwardly formed on the sleeve 11 Insulating collar 12.

Das Vorvolumen 31 beträgt etwa 1 cm3, wobei der Gasdruck des Gasgenerators mindestens 500 bar beträgt.The preliminary volume 31 is approximately 1 cm 3 , the gas pressure of the gas generator being at least 500 bar.

Der Kurzschließer weist mindestens einen Unterteil 9 aus Isolierstoff auf, in dem die Anschlußschienen 3 eingebettet und befestigt sind, d.h. daß auch zwei Unterteile bzw. zwei Gehäuse vorhanden sein können, die jeweils eine Gasgeneratoreinheit 16,17 aufweisen.The short circuiter has at least one lower part 9 made of insulating material, in which the Connection rails 3 are embedded and fastened, i.e. that two lower parts or Two housings can be present, each with a gas generator unit 16, 17 exhibit.

Das Halteteil 7 besteht vollständig aus Isoliermaterial. Die Verbindungsschiene 2 ist in dem Halteteil 7 eingebettet und befestigt, wobei das Unterteil 9 mit dem Halteteil 7 derart befestigt sind, daß mindestens ein isolierendes Kurzschließergehäuse entsteht. Das Halteteil 7 ist mit einer Haube 10 versehen.The holding part 7 consists entirely of insulating material. The connecting rail 2 is in embedded and fastened to the holding part 7, the lower part 9 with the holding part 7 are attached in such a way that at least one insulating short-circuiting housing is produced. The holding part 7 is provided with a hood 10.

Der Kurzschließerkolben 6 weist einen zylindrischen Bereich 41 und vorne einen leicht konischen Bereich 42.
Durch das Zentrierelement 1 sind die Anschlußschienenbohrung 24 und die Durchgangsbohrung 38 der Verbindungschiene 2 genau fluchtend.
Durch die Phase 25 der Verbindungsschiene 2 und die Anschlußschienenphase 43, in der die Hülse 11 liegt, wird eine durchgehende Bohrung geschaffen, die nur durch die Isoliermembrane 4 unterbrochen ist. Nach dem Abreißen der Isoliermembrane 4 kann der Kurzschließerkolben 6 ungehindert die Anschlußschiene kontaktieren, bis sich dieser dort festsetzt, weil entweder die Anschlußschienenbohrung ebenfalls konisch ist oder der Durchmesser kleiner ist als der zylindrische Bereich 41.The short-circuiting piston 6 has a cylindrical region 41 and a slightly conical region 42 at the front.
Through the centering element 1, the connecting rail bore 24 and the through bore 38 of the connecting rail 2 are exactly aligned.
Through the phase 25 of the connecting bar 2 and the connecting bar phase 43, in which the sleeve 11 is located, a through hole is created which is only interrupted by the insulating membrane 4. After the insulating membrane 4 has been torn off, the short-circuiting piston 6 can contact the connecting rail unhindered until it sticks there because either the connecting rail bore is also conical or the diameter is smaller than the cylindrical region 41.

Der Kurzschließerkolben 6 ist lediglich um die sehr dünne Isoliermembran entfernt, was zu einer sehr kurzen Schaltzeit führt.
Das Zentrierelement 1 wirkt wie eine fingerhutartige Isolierkappe, die den Kurzschließerkolben 6 hält. The short-circuiting piston 6 is only removed around the very thin insulating membrane, which leads to a very short switching time.
The centering element 1 acts like a thimble-like insulating cap that holds the short-circuiting piston 6.

Die Erfindung spezifiziert sich vorrangig auf den Einsatz als zentrales Schutzorgan in ortsveränderlichen und stationären Energieverteilungsanlagen, sowohl in Punktverteiler z.B. Hauptverteiler, als auch in Linienverteilern z.B. Schienenverteiler in der Nieder-, Mittel-, und Hochspannungstechnik. Die Erfindung kann auch als dezentrales Schutzorgan z.B. in Batterie-, Notstrom-, Kompensations-, und Bahnanlagen eingesetzt werden.The invention specifies primarily for use as a central protective organ in portable and stationary power distribution systems, both in Point distributor e.g. Main distributor, as well as in line distributors e.g. Busbar trunking in of low, medium and high voltage technology. The invention can also be used as decentralized protection organ e.g. in battery, emergency power, compensation, and Railway systems are used.

Das Grundprinzip beruht darauf daß ein Gasgenerator, der durch einen definierten Zündstrom aktiviert wird, in sehr kurzer Zeit ein definiertes Gasvolumen liefert. Der Raum, in dem sich das Gasvolumen entwickelt ist ausreichend dicht und fest, so daß sich ein Druck bis 900 bar aufbaut. Der Druck wird als Antrieb für einen Schließvorgang genutzt. Die Leiter sind für einen Kurzschlußstrom von über 100kA über einen Zeitraum von mindestens 500 ms ausgelegt. The basic principle is based on the fact that a gas generator is defined by a gas generator Ignition current is activated, delivers a defined volume of gas in a very short time. The Space in which the gas volume develops is sufficiently dense and firm that a pressure of up to 900 bar builds up. The pressure is the drive for one Closing process used. The conductors are for a short-circuit current of over 100kA designed for a period of at least 500 ms.

Liste der BezugszeichenList of reference numbers

  • Zentrierelement 1Centering element 1
  • Verbindungsschiene 2Connection rail 2
  • Anschlußschiene 3Connection rail 3
  • Isoliermembran 4Isolation membrane 4
  • Kurzschließerkolben 5Short-circuiting piston 5
  • Druckelement 6Pressure element 6
  • Halteteil 7Holding part 7
  • Unterteil 9Bottom part 9
  • Haube 10Hood 10
  • Hülse 11Sleeve 11
  • Isolierkragen 12Insulating collar 12
  • Anschlußbohrungen 15Connection holes 15
  • Kurzschließereinheiten 16, 17Short-circuiting units 16, 17
  • Kapselung 18Encapsulation 18
  • Einsenkungen 19Depressions 19
  • Öffnungen 20Openings 20
  • Befestigungsflansche 21Mounting flanges 21
  • Befestigungsbohrungen 22Mounting holes 22
  • Kurzschließer 23Short circuiter 23
  • Anschlußschienenbohrung 24Connection rail bore 24
  • Phase 25Phase 25
  • Unterteilbohrung 26Bottom part bore 26
  • Isolierfolie 27Insulating film 27
  • Folienloch 28 Foil hole 28
  • Sollbruchstelle 29Predetermined breaking point 29
  • erster Bereich 30first area 30
  • Vorvolumen 31Pre-volume 31
  • Aufnahme 32Recording 32
  • Haltephase 33Hold phase 33
  • Gewinde 34Thread 34
  • zweite Bereich 35second area 35
  • Schraubenverbindungen 36Bolted connections 36
  • Kragen 37Collar 37
  • Durchgangsbohrung 38Through hole 38
  • Rillen 39Grooves 39
  • dritter Bereich 40third area 40
  • zylindrischen Bereich 41cylindrical region 41
  • konischen Bereich 42conical area 42
  • Anschlußschienenphase 43Terminal rail phase 43

    • Claims (9)

    Kurzschließer für eine Störlichtbogen-Schutzvorrichtung zur Verwendung in Anlagen zur Verteilung elektrischer Energie mit einem Druckelement und einem von dem Druckelement angetriebenen Kurzschließerkolben zur elektrischen Verbindung von Anschlußschienen mit einer Verbindungsschiene, dadurch gekennzeichnet, daß der Kurzschließerkolben (5) in einer Verbindungsschiene (2) geführt und gehalten wird und daß ein Gasgenerator (6) als Druckelement in einem ein Vorvolumen (31) aufweisendes Halteteil (7) aus Isoliermaterial eingebettet ist, das mit der Verbindungsschiene (2) verbunden ist.Short-circuiter for an arc fault protection device for use in systems for distributing electrical energy with a pressure element and a short-circuiting piston driven by the pressure element for the electrical connection of connecting rails to a connecting rail, characterized in that the short-circuiting piston (5) is guided in a connecting rail (2) and is held and that a gas generator (6) is embedded as a pressure element in a holding part (7) having a preliminary volume (31) made of insulating material, which is connected to the connecting rail (2). Kurzschließer nach Anspruch 1, dadurch gekennzeichnet, daß der Kurzschließerkolben (5) an dem einen Ende von dem Halteteil (7) und an dem anderen Ende von einem Zentrierelement (1) aus Isoliermaterial gehalten wird, wobei das Zentrierteil (1) zwischen der Verbindungsschiene (2) und einer Anschlußschiene (3) angeordnet ist.Short-circuiter according to claim 1, characterized in that the Short-circuiting piston (5) at one end of the holding part (7) and at the the other end is held by a centering element (1) made of insulating material, wherein the centering part (1) between the connecting rail (2) and one Connection rail (3) is arranged. Kurzschließer nach Anspruch 2, dadurch gekennzeichnet, daß das Zentrierteil aus einer Hülse (11), einer Isoliermembrane (4) mit einer Sollbruchstelle und einem an der Hülse (11) radial nach außen angeformten Isolierkragen (12) besteht.Short-circuiter according to claim 2, characterized in that the centering part from a sleeve (11), an insulating membrane (4) with a predetermined breaking point and an insulating collar (12) molded radially outward on the sleeve (11) consists. Kurzschließer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Vorvolumen etwa 1 cm3 und der Gasdruck des Gasgenerators mindestens 300 bar beträgt.Short-circuiter according to one of the preceding claims, characterized in that the preliminary volume is approximately 1 cm 3 and the gas pressure of the gas generator is at least 300 bar. Kurzschließer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Kurzschließer mindestens ein Zentrierelement (1) aus Isoliermaterial zur Zentrierung von einer Anschlußschiene (3) mit einer Verbindungsschiene (2) aufweist, und daß das Zentrierelement (1) eine Isoliermembran (4) aufweist, die bei Zündung des Druckelements (6) von dem (5) Kurzschließelement durchstoßen wird.Short-circuiter according to one of the preceding claims, characterized characterized in that the short-circuiter comprises at least one centering element (1) Insulating material for centering a connecting bar (3) with a Connection rail (2), and that the centering element (1) Isoliermembrane (4), the ignition of the pressure element (6) of the (5) short-circuiting element is pierced. Kurzschließer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zwischen der Anschlußschiene (3) und der Verbindungsschiene (2) eine Isolierfolie (13) angeordnet ist, die ein Folienloch (28) aufweist, das größer als der Durchmesser des Kurzschließerkolbens (5) ist und in das das Zentierelement (1) eingesetzt werden kann.Short-circuiter according to one of the preceding claims, characterized characterized in that between the connecting rail (3) and the Connection rail (2) an insulating film (13) is arranged which has a film hole (28), which is larger than the diameter of the short-circuiting piston (5) and in which the centering element (1) can be used. Kurzschließer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Zentrierteil (1) aus einer ringförmigen Hülse (11), die größer als der Durchmesser des Kurzschließerkolbens (5) ist, besteht, daß das Zentrierelement (1) ein an der Hülse (11) radial nach außen angeformten Isolierkragen (12) aufweist.Short-circuiter according to one of the preceding claims, characterized characterized in that the centering part (1) from an annular sleeve (11) is larger than the diameter of the short-circuiting piston (5), there is that Centering element (1) molded onto the sleeve (11) radially outwards Has insulating collar (12). Kurzschließer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Kurzschließelement (5) ein Kurzschließerkolben ist.Short-circuiter according to one of the preceding claims, characterized characterized in that the short-circuiting element (5) is a short-circuiting piston. Kurzschließer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Isoliermembrane (4) mit einer Sollbruchstelle (29) versehen ist.Short-circuiter according to one of the preceding claims, characterized characterized in that the insulating membrane (4) with a predetermined breaking point (29) is provided.
    EP00107216A 1999-04-12 2000-04-01 Short-circuiter Expired - Lifetime EP1052665B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19916329 1999-04-12
    DE19916329A DE19916329A1 (en) 1999-04-12 1999-04-12 Short-circuiting device, for an arcing protection device in an electricity distribution system, has a short-circuiting piston driven by a gas generator for electrically connecting a terminal bar to a connection bar

    Publications (3)

    Publication Number Publication Date
    EP1052665A2 true EP1052665A2 (en) 2000-11-15
    EP1052665A3 EP1052665A3 (en) 2002-01-16
    EP1052665B1 EP1052665B1 (en) 2004-10-06

    Family

    ID=7904205

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP00107216A Expired - Lifetime EP1052665B1 (en) 1999-04-12 2000-04-01 Short-circuiter

    Country Status (4)

    Country Link
    EP (1) EP1052665B1 (en)
    AT (1) ATE279016T1 (en)
    DE (2) DE19916329A1 (en)
    ES (1) ES2228324T3 (en)

    Cited By (8)

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    WO2009062600A1 (en) * 2007-11-16 2009-05-22 Moeller Gmbh Short-circuit limiting apparatus in a low-voltage installation
    US7619869B2 (en) 2006-07-04 2009-11-17 Moeller Gmbh Electrical circuit breaker
    US7633730B2 (en) 2006-07-04 2009-12-15 Moeller Gmbh Circuit breaker and short circuiter combination
    US7755868B2 (en) 2006-01-09 2010-07-13 Luis Gonzalo Flores Losada Electrical equipment for distribution network
    US8395868B2 (en) 2008-11-14 2013-03-12 Eaton Industries Gmbh Short circuit limitation device in a low voltage system
    WO2014031312A1 (en) * 2012-08-23 2014-02-27 Schneider Electric USA, Inc. Crowbar short-circuiter disconnect switch
    WO2019114918A1 (en) * 2017-12-11 2019-06-20 Siemens Aktiengesellschaft Short-circuiter device
    WO2024103096A1 (en) 2022-11-15 2024-05-23 Miba Emobility Gmbh Electric emergency switch device

    Families Citing this family (3)

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    Publication number Priority date Publication date Assignee Title
    ES2529049T3 (en) 2007-09-05 2015-02-16 Abb Technology Ag Low voltage, medium voltage or high voltage switch assembly that has a short circuit system
    WO2010020411A1 (en) 2008-08-21 2010-02-25 Moeller Gmbh Limiting device for residual currents in a low voltage inverter
    DE102013005783B4 (en) 2012-10-31 2019-06-13 DEHN + SÖHNE GmbH + Co. KG. Device for operating voltage-independent generation of a safe, low-resistance electrical short circuit

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    DE9419141U1 (en) * 1994-11-29 1996-03-28 Klöckner-Moeller GmbH, 53115 Bonn Short-circuiter for extinguishing arcing faults for use in switchgear
    DE19712387A1 (en) * 1996-04-27 1997-10-30 Dynamit Nobel Ag Pyrotechnic switching element for electrical circuits
    DE19746813A1 (en) * 1997-10-23 1999-04-29 Kloeckner Moeller Gmbh Assembly method for short-circuiter for arcing protection device
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    Cited By (10)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US7755868B2 (en) 2006-01-09 2010-07-13 Luis Gonzalo Flores Losada Electrical equipment for distribution network
    US7619869B2 (en) 2006-07-04 2009-11-17 Moeller Gmbh Electrical circuit breaker
    US7633730B2 (en) 2006-07-04 2009-12-15 Moeller Gmbh Circuit breaker and short circuiter combination
    WO2009062600A1 (en) * 2007-11-16 2009-05-22 Moeller Gmbh Short-circuit limiting apparatus in a low-voltage installation
    US8400740B2 (en) 2007-11-16 2013-03-19 Eaton Industries Gmbh Short-circuit limiting device in a low-voltage installation
    US8395868B2 (en) 2008-11-14 2013-03-12 Eaton Industries Gmbh Short circuit limitation device in a low voltage system
    WO2014031312A1 (en) * 2012-08-23 2014-02-27 Schneider Electric USA, Inc. Crowbar short-circuiter disconnect switch
    US8933360B2 (en) 2012-08-23 2015-01-13 Schneider Electric USA, Inc. Crowbar disconnect switch
    WO2019114918A1 (en) * 2017-12-11 2019-06-20 Siemens Aktiengesellschaft Short-circuiter device
    WO2024103096A1 (en) 2022-11-15 2024-05-23 Miba Emobility Gmbh Electric emergency switch device

    Also Published As

    Publication number Publication date
    DE19916329A1 (en) 2000-10-19
    DE50008055D1 (en) 2004-11-11
    EP1052665B1 (en) 2004-10-06
    ATE279016T1 (en) 2004-10-15
    EP1052665A3 (en) 2002-01-16
    ES2228324T3 (en) 2005-04-16

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