EP0323825B1 - Disconnecting switch - Google Patents

Disconnecting switch Download PDF

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Publication number
EP0323825B1
EP0323825B1 EP89100018A EP89100018A EP0323825B1 EP 0323825 B1 EP0323825 B1 EP 0323825B1 EP 89100018 A EP89100018 A EP 89100018A EP 89100018 A EP89100018 A EP 89100018A EP 0323825 B1 EP0323825 B1 EP 0323825B1
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EP
European Patent Office
Prior art keywords
fastening
rail sections
isolating switch
frame
bearing elements
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.)
Expired - Lifetime
Application number
EP89100018A
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German (de)
French (fr)
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EP0323825A2 (en
EP0323825A3 (en
Inventor
Alfred Dr.-Ing. Hartig
Heinz Szygulla
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.)
Ruhrtal Elektrizitatsgesellschaft Hartig GmbH and Co
Original Assignee
Ruhrtal Elektrizitatsgesellschaft Hartig GmbH and Co
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Publication of EP0323825A2 publication Critical patent/EP0323825A2/en
Publication of EP0323825A3 publication Critical patent/EP0323825A3/en
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Publication of EP0323825B1 publication Critical patent/EP0323825B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02—Details
    • H01H31/023—Base and stationary contacts mounted thereon

Definitions

  • a disconnector of the type mentioned has become known through an obvious prior use of the company Asea Brown Boveri Aktiengesellschaft.
  • This known isolating switch has the disadvantage, due to the L-shaped profile rails, that the torsional rigidity of the base frame may not be sufficient under heavy loads.
  • the fastening tabs are U-shaped and are arranged above the lower edge of the profiled rails arranged next to one another in parallel and are connected to them.
  • the fastening tabs designed as a U-shaped bracket also result in increased torsional rigidity, so that even greater loads are not a problem.
  • This alternative embodiment is used in particular when the fastening holes on the supports are closer together.
  • this embodiment also has the advantage that, in the event of a tolerance-related deviation in the height of the vertical profile webs, a height compensation can take place, since the vertical profile webs are movable along the U-shaped fastening tabs in the unmounted state.
  • the adaptability of a disconnector base frame to the system table construction is of particular importance.
  • the base frame according to the invention is therefore designed so that the fastening tabs can easily be arranged at different distances from one another.
  • the elements required for the mounting are a flat iron which extends transversely to the lower edges of the L-profile rails and is fastened to them, which may be bent on its long side and in the area of the profile rails is released.
  • the notching is advantageously not rectangular but circular, whereby protruding tips are obtained, which in turn are welded to the web of the profile rails. This results in additional stiffening.
  • Fig. 4 shows a second embodiment in which the fastening tabs are designed as a U-bracket 10 and are connected to the vertical profile webs 6a, 6b. Even if the height of the vertical profile webs 6a and 6b deviates due to tolerance, the mounting surfaces A for the bearing elements 8 and the mounting surface B are parallel to one another.
  • Fig. 5 shows again in detail the bearing element 8 with the flange 11 and a fastening tab 9 which is bent on one side and which has 6 notches 12 in the region of the profiled rails.
  • the lower web height of the profile rail 6b due to manufacturing tolerances is compensated by additional weld metal 13 when connected to the fastening tab 9.

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  • Gas-Insulated Switchgears (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)
  • Insulators (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Glass Compositions (AREA)
  • Lubricants (AREA)

Abstract

Disconnecting switches, especially those in a multi-pin design, have a base frame on whose upper side bearing elements for supporting insulators are mounted or supporting insulators are mounted themselves. A base frame is shown and described consisting of two profile limbs located at the top, facing one another, and profile rails arranged parallel to one another, the two profile rails being unified by means of, on the one hand, bearing elements attached to the upper profile limbs and, on the other hand, attachment straps connected to the vertical profile webs, to form a torsionally stiff frame perpendicular to the longitudinal axis of the profile rails. The attachment straps are of different design so that the attachment dimensions can be matched to the installation characteristics. <IMAGE>

Description

Die Erfindung betrifft einen Trennschalter, insbesondere Höchstspannungs-Trennschalter mit drehbaren Stütz- oder Antriebsisolatoren, mit einem Grundgestell aus mit mindestens je einen Schenkel einander zukehrenden L-förmigen Profilschienen, auf die oberen Schenkel aufgesetzten Lagerelementen und mittels Lagerzapfen an die Lagerelemente angeschlossenen Stützisolatoren, wobei das Grundgestell aus zwei mit einander zugekehrten obenliegenden Profilschenkeln parallel nebeneinander angeordneten Profilschienene besteht und die beiden Profilschienen durch auf den oberen Profilschenkeln befestigte Lagerelemente einerseits und mit den senkrechten Profilstegen verbundenen jeweils wenigstens eine Befestigungsbohrung aufweisenden Befestigungslaschen andererseits zu einem quer zur Längsachse der Profilschienen verwindungssteifen Rahmen vereinigt sind.The invention relates to a circuit breaker, in particular ultra-high voltage circuit breakers with rotatable support or drive insulators, with a base frame made of L-shaped profile rails facing each other with at least one leg, bearing elements placed on the upper legs and bearing insulators connected to the bearing elements by means of trunnions, the Base frame consists of two mutually facing overhead profile legs arranged in parallel next to each other and the two profile rails are united by a bearing element fastened to the upper profile legs on the one hand and to the vertical profile webs each have at least one fastening hole with fastening tabs on the other hand to form a torsionally rigid frame transverse to the longitudinal axis of the profile rails.

Der Gestaltung des Grundgestells wurde in der Vergangenheit nur vereinzelt die erforderliche Beachtung geschenkt (DE-U-19 70 057). Dort ist der Lagerzapfen in Bohrungen der Profilflansche eingesetzt, was bewirkt, daß die Beanspruchungen am Profil außermittig angreifen und störende Momente auslösen. Um sie aufzunehmen, muß mit verhältnismäßig schweren Profilschienen großer Steghöhe gearbeitet und deren Steghöhe sogar noch durch auf die Profilflansche aufgeschweißte Naben im Bereich der Bohrungen vergrößert werden. Außerdem weist diese Konstruktion nicht die für den Anbau von Zusatzeinrichtungen und Antrieben erforderliche Breite auf, damit diese Zusatzeinrichtungen, soweit sie nach unten vorstehen, nicht mit den darunterliegenden Tischkonstruktionen kollidieren.In the past, the design of the base frame was only occasionally given the necessary attention (DE-U-19 70 057). There, the bearing journal is inserted into the bores of the profile flanges, which means that the stresses on the profile act off-center and trigger disturbing moments. In order to accommodate them, it is necessary to work with relatively heavy profile rails with a large web height and their web height must be increased even further by hubs welded onto the profile flanges in the area of the bores. In addition, this construction does not have the width required for the attachment of additional devices and drives, so that these additional devices, as far as they protrude downwards, do not collide with the underlying table structures.

Eine spätere Konstruktion (DE-A-20 09 759) findet für die erforderliche Breite und Stabilität der Grundgestelle eine Lösung, wobei die Breite der Grundgestelle jedoch vom Durchmesser der eingesetzten Lagerelemente und der Breite der Schenkel abhängt. Werden wegen zunehmender Lagerkräfte Lagerelemente mit größerem Durchmesser erforderlich, verbreitert sich das Grundgestell so sehr, daß die Befestigungsmaße nicht mehr eingehalten werden können. Im übrigen ist es aus der DE-A-20 09 759 bekannt, daß Befestigungslaschen über das Grundgestell überstehen.A later construction (DE-A-20 09 759) finds a solution for the required width and stability of the base frames, but the width of the base frames depends on the diameter of the bearing elements used and the width of the legs. If bearing elements with a larger diameter are required due to increasing bearing forces, the base frame widens so much that the fastening dimensions can no longer be maintained. For the rest, it is known from DE-A-20 09 759 that fastening tabs protrude beyond the base frame.

Ein weiteres Problem bei der Erstellung von Grundgestellen für Trennschalter aus Stahlprofilen ist die Höhentoleranz dieser Profile, die sich inbesondere dann nachteilig auswirkt, wenn, wie dies bei Trennschaltern häufig der Fall ist, auf der Oberseite der Profile die Drehaggregate der Stützisolatoren und die Drehaggregate von Erdungsschaltern montiert sind, da die ungleichen Höhen der Profile zum Schiefstehen der Stützisolatoren und ggf. auch der Erdungsschalter führen. Zur Lösung des ersten Teils dieses Problems sind in der Vergangenheit zwischen dem Drehaggregat und dem Stützisolator oder zwischen dem Grundgestell und dem Drehaggregat Stehbolzen angeordnet worden, die eine Korrektur der Lage ermöglichen.Another problem in the creation of basic frames for disconnectors made of steel profiles is the height tolerance of these profiles, which is particularly disadvantageous when, as is often the case with disconnectors the rotating assemblies of the post insulators and the rotating assemblies of earthing switches are mounted on the top of the profiles, since the uneven heights of the profiles lead to the inclination of the post insulators and possibly also the earthing switch. To solve the first part of this problem, studs have been arranged in the past between the rotating assembly and the support insulator or between the base frame and the rotating assembly, which enable the position to be corrected.

Ein Trennschalter der eingangs genannten Art ist durch eine offenkundige Vorbenutzung der Firma Asea Brown Boveri Aktiengesellschaft bekannt geworden. Dieser bekannte Trennschalter hat aufgrund der L-förmigen Profilschienen den Nachteil, daß die Verwindungssteifigkeit des Grundgestells bei starken Belastungen möglicherweise nicht ausreichend ist.A disconnector of the type mentioned has become known through an obvious prior use of the company Asea Brown Boveri Aktiengesellschaft. This known isolating switch has the disadvantage, due to the L-shaped profile rails, that the torsional rigidity of the base frame may not be sufficient under heavy loads.

Der Erfindung liegt die Aufgabe zugrunde, einen Trennschalter der eingangs genannten Art so weiterzubilden, daß das Grundgestell eine ausreichende Verwindungssteifigkeit aufweist und das Höhentoleranzen der verwendeten Profilschienen in einfacher Weise ausgeglichen werden können.The invention has for its object to develop a circuit breaker of the type mentioned so that the base frame has a sufficient torsional rigidity and the height tolerances of the rails used can be easily compensated.

Diese Aufgabe ist bei einer ersten Alternative des erfindungsgemäßen Trennschalters im wesentlichen dadurch gelöst, daß die Profilschienen zumindest im Bereich der Befestigung auf Stützen nach außerhalb des Grundgestells vorstehende Befestigungslaschen aufweisen, in denen die Befestigungsbohrungen angeordnet sind, daß die Befestigungslaschen auf einer Seite abgekantet und im Bereich der Profilstege ausgeklinkt sind und daß der abgekantete Bereich der Befestigungslaschen zumindest teilweise mit dem jeweiligen Profilsteg verschweißt ist.In a first alternative of the circuit breaker according to the invention, this object is essentially achieved in that the profiled rails have, at least in the area of the attachment on supports, attachment tabs projecting outside the base frame, in which the attachment holes are arranged, that the attachment tabs are folded on one side and in the area the profile webs are notched and that the folded area of the fastening tabs is at least partially welded to the respective profile web.

Aufgrund der mit dem Profilsteg verbundenen Abkantung ergibt sich eine verbesserte Versteifung des Grundgestells, so daß dieses auch höheren Belastungen standhält. Darüber hinaus ist im Gegensatz zu dem bekannten Trennschalter eine einfachere Befestigung möglich, da die Befestigungslaschen nach außen hin über die Profilschienen überstehen und somit eine Befestigung auf den Stützen erfolgen kann. Im Gegensatz dazu sind die Befestigungsbohrungen bei dem bekannten offenkundig vorbenutzten Trennschalter innerhalb des Grundgestells angeordnet, so daß die Befestigung häufig recht große Schwierigkeiten bereitet.Due to the bend connected to the profile web, there is an improved stiffening of the base frame, so that it also withstands higher loads. In addition, in contrast to the known disconnector, a simpler fastening is possible, since the fastening lugs protrude outwards beyond the profiled rails, and thus a fastening can take place on the supports. In contrast, the mounting holes are obvious in the known previously used disconnector arranged within the base frame, so that the attachment often causes quite a lot of difficulty.

Bei der alternativen Ausführungsform ist zur Lösung der erwähnten Aufgabe erfindungsgemäß vorgesehen, daß die Befestigungslaschen U-förmig ausgebildet und über die Unterkante der parallel nebeneinander angeordneten Profilschienen vorstehend angeordnet und mit diesen verbunden sind. Auch durch die als U-förmige Bügel ausgebildeten Befestigungslaschen ergibt sich eine erhöhte Verwindungssteifigkeit, so daß auch größere Belastungen kein Problem darstellen. Diese alternative Ausführungsform kommt insbesondere dann zur Anwendung, wenn die Befestigungsbohrungen auf den Stützen enger beieinander liegen. Neben der verbesserten Verwindungssteifigkeit bietet diese Ausführungsform aber auch den Vorteil, daß bei toleranzbedingter Abweichung der Höhe der senkrechten Profilstege ein Höhenausgleich stattfinden kann, da die senkrechten Profilstege entlang den U-förmig gebogenen Befestigungslaschen im nicht montierten Zustand beweglich sind.In the alternative embodiment it is provided according to the invention to achieve the above-mentioned object that the fastening tabs are U-shaped and are arranged above the lower edge of the profiled rails arranged next to one another in parallel and are connected to them. The fastening tabs designed as a U-shaped bracket also result in increased torsional rigidity, so that even greater loads are not a problem. This alternative embodiment is used in particular when the fastening holes on the supports are closer together. In addition to the improved torsional rigidity, this embodiment also has the advantage that, in the event of a tolerance-related deviation in the height of the vertical profile webs, a height compensation can take place, since the vertical profile webs are movable along the U-shaped fastening tabs in the unmounted state.

Die Lagerelemente können unterschiedliche Durchmesser und damit auch unterschiedliche Biegemomente aufweisen, entsprechend den von in ihrem Inneren angeordneten Lagerzapfen benötigten Festigkeiten. Eine bevorzugte Ausführungsform, die eine besondere Anpassungsmöglichkeit an die bei unterschiedlichen Nennspannungen auftretenden Beanspruchungen ermöglicht, ist die Kombinationsbreite von Fußplatte der Lagerelemente und Gehäusedurchmesser der Lagerelemente, wodurch zusammen mit der Auswahl der Befestigungsbügel der gesamte erforderliche Bereich in Breite und Torsionssteifigkeit abgedeckt wird.The bearing elements can have different diameters and therefore also different bending moments, in accordance with the strengths required by the bearing pins arranged in their interior. A preferred embodiment, which enables a special adaptation to the stresses occurring at different nominal voltages, is the combination width of the base plate of the bearing elements and the housing diameter of the bearing elements, which together with the selection of the fastening brackets covers the entire required range in terms of width and torsional rigidity.

Der Anpassungsfähigkeit eines Trennschalter-Grundgestells an die Anlagen-Tischkonstruktion kommt besondere Bedeutung zu. Das erfindungsgemäße Grundgestell ist deshalb so ausgebildet, daß die Befestigungslaschen leicht in unterschiedlichem Abstand voneinander angeordnet werden können. Um auch den Abstand der Befestigungsbohrungen den Anlagengegebenheiten anpassen zu können, ist es erfindungsgemäß vorteilhaft, daß die für die Befestigung benötigten Elemente ein sich quer zu den Unterkanten der L-Profilschienen erstreckendes und an diesen befestigtes Flacheisen sind, das ggf. an seiner Längsseite abgekantet und im Bereich der Profilschienen ausgeklinkt ist. Die Ausklinkung erfolgt vorteilhafterweise nicht rechteckig sondern kreisförmig, wodurch vorstehende Spitzen erzielt werden, die ihrerseits mit dem Steg der Profilschienen verschweißt werden. Hierdurch ergibt sich eine zusätzliche Versteifung.The adaptability of a disconnector base frame to the system table construction is of particular importance. The base frame according to the invention is therefore designed so that the fastening tabs can easily be arranged at different distances from one another. To also the distance To be able to adapt the mounting holes to the system conditions, it is advantageous according to the invention that the elements required for the mounting are a flat iron which extends transversely to the lower edges of the L-profile rails and is fastened to them, which may be bent on its long side and in the area of the profile rails is released. The notching is advantageously not rectangular but circular, whereby protruding tips are obtained, which in turn are welded to the web of the profile rails. This results in additional stiffening.

Der andererseits damit verbundene zusätzliche Schweißaufwand wird erfindungsgemäß dadurch ausgeglichen, daß die Befestigungslasche zu weniger als 80 % ihrer Breite mit den Profilschienen verschweißt ist und die Profilschienen im nicht verschweißten Bereich ausgeklinkt sind.The associated additional welding effort is compensated according to the invention in that the fastening tab is welded to less than 80% of its width with the profile rails and the profile rails are notched in the non-welded area.

Um eine hohe Steifigkeit und vorteilhafte Einleitung der im Kurzschlußfall auftretenden großen Kräfte in das Grundgestell und von dort in den Trennschalter-Tisch zu erreichen, ist das Grundgestell so ausgebildet, daß Bohrungen in den einander zugekehrten nach oben liegenden Profilschenkeln für die Befestigung der Lagerelemente und für die Befestigung von Erdungsschalter-Drehaggregate auf einer Linie liegen und daß diese Linie den für die mechanische Steifigkeit günstigsten Abstand von der Profilkante hat.

Fig. 1
zeigt einen Trennschalter in perspektivischer Darstellung,
Fig. 2
zeigt eine Ausführung mit Stehbolzen zum Ausgleich von Fertigungstoleranzen eines U-Schienen aufweisenden Grundgestells,
Fig. 3
zeigt einen Grundgestellabschnitt in perspektivischer Darstellung,
Fig. 4
zeigt die Vorderansicht eines Grundgestells mit Befestigungslaschen in U-Bügel-Form,
Fig. 5
zeigt ein Grundgestell in Vorderansicht mit abgekanteter und ausklinkter Befestigunglasche,
Fig. 6
zeigt einen Grundgestellabschnitt in perspektivischer Darstellung mit Befestigungslasche und zusätzlichem außenliegenden Befestigungselement.
In order to achieve high rigidity and advantageous introduction of the large forces occurring in the event of a short circuit into the base frame and from there into the disconnector table, the base frame is designed so that holes in the mutually facing upward profile legs for fastening the bearing elements and for the fastening of earthing switch rotary units lie on a line and that this line has the most favorable distance from the profile edge for the mechanical rigidity.
Fig. 1
shows a circuit breaker in perspective,
Fig. 2
shows an embodiment with stud bolts to compensate for manufacturing tolerances of a base frame having U-rails,
Fig. 3
shows a base frame section in perspective,
Fig. 4
shows the front view of a base frame with fastening tabs in the form of a U-bracket,
Fig. 5
shows a base frame in front view with folded and notched fastening tab,
Fig. 6
shows a base frame section in a perspective view with fastening tab and additional external fastening element.

Der in den Figuren dargestellte Trennschalter ist als Drehtrennschalter ausgeführt und besteht in seinem grundsätzlichen Aufbau zunächst aus dem Grundgestell 1 und 2 auf dem Grundgestell drehbar gelagerten Stützisolatoren 2 mit Schaltarmen 3. Das Grundgestell 1 selbst ist über Stützen 4 o. ä. auf Fundamenten 5 montiert. Das Grundgestell 1 besteht aus Winkelprofilschienen 6. Den oben liegenden Profilschenkeln 7 der Profilschienen 6 sind Lagerelemente 8 zugeordnet. Die senkrechten Profilstege 6a, 6b sind quer zur Längsachse der Profilschienen 6 mit Befestigungslaschen 9 und den Grundplatten der Lagerelemente 8 statisch zu einem Rahmen bzw. Gestell vereinigt.The isolating switch shown in the figures is designed as a rotary isolating switch and, in its basic structure, initially consists of the base frames 1 and 2, supporting insulators 2 rotatably mounted on the base frame with switching arms 3. The base frame 1 itself is mounted on foundations 5 via supports 4 or the like . The base frame 1 consists of angle profile rails 6. Bearing elements 8 are assigned to the profile legs 7 of the profile rails 6 lying at the top. The vertical profile webs 6a, 6b are statically combined transversely to the longitudinal axis of the profile rails 6 with fastening tabs 9 and the base plates of the bearing elements 8 to form a frame or frame.

Dies ist auch in Fig. 3 nochmals im Detail dargestellt.This is also shown in detail in FIG. 3.

Fig. 4 zeigt eine zweite Ausführung, bei der die Befestigungslaschen als U-Bügel 10 ausgebildet und mit den senkrechten Profilstegen 6a, 6b verbunden sind. Auch bei toleranzbedingter Abweichung der Höhe der senkrechten Profilstege 6a und 6b liegen die Montageflächen A für die Lagerelemente 8 und die Befestigungsfläche B parallel zueinander.Fig. 4 shows a second embodiment in which the fastening tabs are designed as a U-bracket 10 and are connected to the vertical profile webs 6a, 6b. Even if the height of the vertical profile webs 6a and 6b deviates due to tolerance, the mounting surfaces A for the bearing elements 8 and the mounting surface B are parallel to one another.

Fig. 5 zeigt nochmals im Detail das Lagerelement 8 mit dem Flansch 11 sowie eine an einer Seite abgekantete Befestigungslasche 9, die im Bereich der Profilschienen 6 Ausklinkungen 12 ausweist. Die aufgrund von Fertigungstoleranzen geringere Steghöhe der Profilschiene 6b ist bei der Verbindung mit der Befestigungslasche 9 durch zusätzliches Schweißgut 13 ausgeglichen.Fig. 5 shows again in detail the bearing element 8 with the flange 11 and a fastening tab 9 which is bent on one side and which has 6 notches 12 in the region of the profiled rails. The lower web height of the profile rail 6b due to manufacturing tolerances is compensated by additional weld metal 13 when connected to the fastening tab 9.

Fig. 6 zeigt den Abschnitt eines Grundgestells 1, bei dem die senkrechten Profilstege 6 einerseits durch eine Befestigungslasche 9 miteinander verbunden sind und andererseits nach außerhalb vorstehende Elemente 14 aufweisen, in denen Befestigungsbohrungen angeordnet sind.Fig. 6 shows the section of a base frame 1, in which the vertical profile webs 6 are connected to one another by a fastening tab 9 and on the other hand have outwardly projecting elements 14 in which fastening holes are arranged.

Claims (13)

  1. An isolating switch, particularly an extra-high tension isolating switch having rotatable support or drive insulators (2), having a base-frame (1) comprising L-shaped rail sections (6) facing each other with at least one limb (7) in each case, having bearing elements (8) placed on the upper limbs (7) and having support insulators (2) attached to the bearing elements (8) by means of bearing journals, wherein the base-frame (1) consists of two rail sections (6) disposed parallel and side by side with their upper section limbs (7) facing each other, and the two rail sections (6) are joined firstly by bearing elements (8) fastened to the upper section limbs (7) and secondly by fastening brackets (9), which are attached to the vertical section webs (6a, 6b) and each of which has at least one fastening hole, to form a frame which is resistant to torsion transverse to the longitudinal axis of the rail sections (6), characterised in that the rail sections (6) have fastening brackets (9) in which the fastening holes are disposed and which protrude outwards from the base-frame (1) at least in the region of fastening on posts (4), that the fastening brackets (9) are folded on one side and are indented in the region of the section webs (6a, 6b), and that the folded region of the fastening brackets (9) is at least partly welded to the respective section web (6a, 6b).
  2. An isolating switch according to claim 1, characterised in that the indents (12) are formed so that the distance between the fastening bracket (9) and the rail section (6) is ultimately suitable for a welding operation.
  3. An isolating switch according to claim 1 or 2, characterised in that the indents (12) are circular.
  4. An isolating switch, particularly an extra-high tension isolating switch having rotatable support or drive insulators (2), having a base-frame (1) comprising L-shaped rail sections (6) facing each other with at least one limb (7) in each case, having bearing elements (8) placed on the upper limbs (7) and having support insulators (2) attached to the bearing elements (8) by means of bearing journals, wherein the base-frame (1) consists of two rail sections (6) disposed parallel and side by side with their upper section limbs (7) facing each other, and the two rail sections (6) are joined firstly by bearing elements (8) fastened to the upper section limbs (7) and secondly by fastening brackets (9), which are attached to the vertical section webs (6a, 6b) and each of which has at least one fastening hole, to form a frame which is resistant to torsion transverse to the longitudinal axis of the rail sections (6), characterised in that the fastening brackets (9) are of U-shaped construction, are disposed protruding beyond the lower edge of the rail sections (6) which are disposed parallel and side by side, and are attached to the latter.
  5. An isolating switch according to any one of the preceding claims, characterised in that the width of the base-frame (1) approximately corresponds to the height of the rail sections (6).
  6. An isolating switch according to any one of the preceding claims, characterised in that the vertical extent of the bearing elements (8) is not more than 1.5 times that of the base-frame (1).
  7. An isolating switch according to any one of the preceding claims, characterised in that the fastening brackets (9) have a wall thickness which is at least twice that of the rail sections (6).
  8. An isolating switch according to any one of the preceding claims, characterised in that the flange (11) of the bearing elements (8) has a wall thickness which is at least twice that of the rail sections (6).
  9. An isolating switch according to any one of the preceding claims, characterised in that additional stays are disposed in the central region of the base-frame (1), which are each preferably constructed as a flat steel bar extending transversely to the lower edges of the rail sections (6) and fastened to the latter.
  10. An isolating switch according to any one of the preceding claims, characterised in that the rail sections (6) have the shape of a Z-section in the fastening region.
  11. An isolating switch according to any one of the preceding claims, characterised in that the fastening bracket (9) is welded to the section webs (6a, 6b) over less than 80 % of its width and the section webs (6a, 6b) are indented in the region which is not welded.
  12. An isolating switch according to any one of the preceding claims, characterised in that holes in the mutually facing upper section limbs (7), for fastening the bearing elements (8) and for fastening earthing switch rotating units, are situated in a line, and that this line is at a distance from the section edge which is the most favourable for mechanical stiffness.
  13. An isolating switch according to any one of the preceding claims, characterised in that for a welded joint between fastening brackets (9) and rail sections (6), one of which has a reduced web height due to manufacturing tolerances, the fastening bracket (9) is disposed parallel to the plane of the upper section limb (7) of the rail sections (6) which are disposed parallel and side by side, and the intermediate space at the rail section (6) produced with a lower web (6b) is filled with weld material (13).
EP89100018A 1988-01-07 1989-01-02 Disconnecting switch Expired - Lifetime EP0323825B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3800211A DE3800211C1 (en) 1988-01-07 1988-01-07
DE3800211 1988-01-07

Publications (3)

Publication Number Publication Date
EP0323825A2 EP0323825A2 (en) 1989-07-12
EP0323825A3 EP0323825A3 (en) 1991-07-31
EP0323825B1 true EP0323825B1 (en) 1995-03-08

Family

ID=6344893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89100018A Expired - Lifetime EP0323825B1 (en) 1988-01-07 1989-01-02 Disconnecting switch

Country Status (3)

Country Link
EP (1) EP0323825B1 (en)
AT (1) ATE119711T1 (en)
DE (3) DE8817105U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103295829A (en) * 2013-05-28 2013-09-11 山东泰开隔离开关有限公司 Induced current release device of 252KV outdoor high-voltage alternating-current earthing switch

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1970057U (en) * 1967-02-28 1967-10-12 Siemens Ag ROTARY DISCONNECTOR.
DE6917027U (en) * 1969-04-26 1969-10-09 Ruhrtal Elek Zitaetsgesellscha SUBSTRUCTURE FOR DISCONNECTOR
DE2009759C3 (en) * 1970-03-03 1979-01-04 Ruhrtal-Elektrizitaetsgesellschaft Hartig & Co, 4300 Essen Disconnector
US3932715A (en) * 1974-05-03 1976-01-13 Westinghouse Electric Corporation High voltage switch
US4112268A (en) * 1976-12-01 1978-09-05 H. K. Porter Company, Inc. Double side air break disconnecting switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103295829A (en) * 2013-05-28 2013-09-11 山东泰开隔离开关有限公司 Induced current release device of 252KV outdoor high-voltage alternating-current earthing switch

Also Published As

Publication number Publication date
DE8817105U1 (en) 1992-10-15
DE58909074D1 (en) 1995-04-13
ATE119711T1 (en) 1995-03-15
EP0323825A2 (en) 1989-07-12
DE3800211C1 (en) 1989-03-30
EP0323825A3 (en) 1991-07-31

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