EP0288417B1 - High-voltage power circuit breaker - Google Patents

High-voltage power circuit breaker Download PDF

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Publication number
EP0288417B1
EP0288417B1 EP88730066A EP88730066A EP0288417B1 EP 0288417 B1 EP0288417 B1 EP 0288417B1 EP 88730066 A EP88730066 A EP 88730066A EP 88730066 A EP88730066 A EP 88730066A EP 0288417 B1 EP0288417 B1 EP 0288417B1
Authority
EP
European Patent Office
Prior art keywords
bolt
housing
cheeks
lever
voltage power
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
EP88730066A
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German (de)
French (fr)
Other versions
EP0288417A1 (en
Inventor
Dieter Noack
Thomas Schultz
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.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT88730066T priority Critical patent/ATE72611T1/en
Publication of EP0288417A1 publication Critical patent/EP0288417A1/en
Application granted granted Critical
Publication of EP0288417B1 publication Critical patent/EP0288417B1/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
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/42—Driving mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle

Definitions

  • the invention relates to an electrical high-voltage circuit breaker, the interrupter units and a housing for intermediate gears are carried by a support column made of insulators, in which a drive arranged on the ground side, the movable switch contacts of each interrupter unit via a switch rod arranged in the support column made of insulating material and that of several Lever existing intermediate gear operated, one of the levers is mounted on a pin in the housing of the intermediate gear.
  • Such a high voltage circuit breaker is e.g. B. from US-PS 4 105 879 known.
  • the bolt for mounting the one lever of the intermediate gear serves as a fulcrum for it.
  • the lever mounted on the bolt must be precisely aligned in its position and must not deviate in the axial direction under the action of force, since the movable switching contacts located in the interrupter units must not tilt under any circumstances.
  • Such a precise alignment of the lever is only possible over machined surfaces, the production of which is very complex in a cast housing, depending on its position.
  • the invention is therefore based on the object to design the design of the bearing of the lever of the intermediate gear so that as few machining steps are required for this precise lateral fixing of the lever.
  • the storage of a lever of the intermediate gear is designed via a bolt in its housing according to the invention in an electrical high-voltage circuit breaker of the type described above so that Inside the cast housing, two parallel cheeks are provided for each intermediate gearbox, which are located behind an opening in the housing that is sealed gas-tight with a lid, the lid also being parallel to the cheeks and the lid and cheeks at least approximately perpendicular to the longitudinal axis of the bolt , that aligned holes of the same diameter are provided in the cheeks, which receive the bolt, that the bolt is divided into two areas with different diameters, of which the lid facing the larger diameter, corresponding to the diameter of the holes in the cheeks, and the other a smaller diameter corresponding to the inner diameter of one in the rear cheek with lying in front of the cheek End face arranged sleeve, the length of this other area is selected so that the paragraph is between the different diameters behind the front cheek, that this shoulder and the end face of the sleeve form contact surfaces for the lever of the intermediate gear
  • the bearing of the lever of the intermediate gearbox is thus carried out via a bolt which is inserted through an opening into the cast housing of the intermediate gearbox and is in turn mounted in two parallel cheeks which are substantially perpendicular to its longitudinal axis.
  • these cheeks have aligned bores of the same diameter, which corresponds to the larger diameter of the bolt in its area facing the opening or the cover closing it.
  • the latter has a region of smaller diameter beginning between the cheeks, the length of which is selected such that the shoulder between the two diameter regions of the bolt always comes to lie behind the front cheek.
  • the inside diameter of which is smaller Corresponds to the bolt diameter and the end face lies in front of the rear cheek.
  • the distance between the two cheeks of the housing is greater than the thickness of the lever mounted on the bolt and that this lever carries two collar bushings on the bore for receiving the bolt, one of which with its end face on the shoulder of the bolt and the the other rests with its end face on the projecting end face of the sleeve in the rear cheek.
  • the flanged bushes are advantageously made of abrasion-free plastic, which has low adhesion and therefore slides well, as it is e.g. B. is available under the trade name Teflon®.
  • FIGS. 1 and 2 of the drawing show schematically a partially sectioned view of the housing of the intermediate gear of an electrical high-voltage circuit breaker.
  • FIG. 2 shows a longitudinal section through the bearing pin of an intermediate gear and the housing parts surrounding it.
  • the housing 1 for the intermediate gear is only indicated by the one Support column 2 worn.
  • the intermediate gear consists of several interconnected levers, of which one lever 4 is mounted in the housing 1 via the bolt 5.
  • the housing 1 contains an opening which is closed gas-tight with a cover 7.
  • the cover 7 carries a seal 8.
  • two housing cheeks 9, 10 are cast in the cast housing 1 behind the opening 6, which are parallel to one another and to the cover 7 and are approximately perpendicular to the longitudinal axis of the bolt 5.
  • Aligned bores 11, 12 are provided in the cheeks 9, 10 and have the same diameter 13 indicated by arrows as the bearing pin 5 in its area 14 facing the cover 7, which is also indicated by arrows.
  • the bore 12 in the rear housing cheek 10 does not penetrate it completely and therefore forms a blind hole.
  • a sleeve 15 is inserted, which rests on one side against the rear wall 16 of the blind hole and whose end wall 17 lies in front of the front side wall 18 of the housing cheek 10.
  • a second region of smaller diameter, indicated by arrows 19, is provided on the bolt 5, the diameter of which corresponds to the inner diameter of the sleeve 15.
  • the shoulder 20 is thus formed on the bolt 5 between the region 14 of larger diameter and the region 19 of smaller diameter.
  • This shoulder 20 lies behind the rear side wall 21 of the front housing cheek 9.
  • Both the shoulder 20 and the end wall 17 of the sleeve 15 form precisely defined contact surfaces for the lateral fixing of the lever 4 of the intermediate gear, without the side walls 21 or 18 of the housing cheeks 9, 10 having to be processed for this.
  • This arrangement of the mounting of the lever 4 of the intermediate gear designed according to the invention enables precise lateral alignment of the lever 4 and prevents the bolt 5 from migrating in its axial direction.
  • the storage only requires the production of aligned bores in the housing cheeks 9, 10.
  • the cover 7 ensures the gas-tight closure of the opening 6 in the housing 1 and at the same time fixes the bolt 5 in its position.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Discharge Lamp (AREA)
  • Organic Insulating Materials (AREA)
  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

In an electrical high-voltage power circuit breaker, the forces required for moving the switching contacts in the interruptor units (3) are transmitted via an intermediate transmission. One of the levers (4) of the intermediate transmission is supported via a bolt (5) in the housing (1). This bearing is intended to be designed such that as few processing steps as possible are required for precise lateral fixing of the lever (4). The bolt (5) used as the bearing of the lever (4) is borne in two side walls (9, 10) running parallel to an opening (6) in the housing (1), and has two regions (14, 19) of different diameter. The recess (20) between the two diameters is located in front of the rear side surface (21) of the front housing side wall (9) and, in the rear housing side wall (10), there is inserted a sleeve (15) whose end face (17) is located in front of the housing side wall (9) and, together with the recess (20) in the bolt (5), forms resting surfaces for the lever (4) of the intermediate transmission. <IMAGE>

Description

Die Erfindung bezieht sich auf einen elektrischen Hochspannungs-Leistungsschalter, dessen Unterbrechereinheiten und ein Gehäuse für Zwischengetriebe von einer Stützersäule aus Isolatoren getragen werden, bei dem ein erdseitig angeordneter Antrieb die beweglichen Schaltkontakte jeder Unterbrechereinheit über eine in der Stützersäule angeordnete Schaltstange aus Isolierstoff und das aus mehreren Hebeln bestehende Zwischengetriebe betätigt, wobei einer der Hebel über einen Bolzen im Gehäuse des Zwischengetriebes gelagert ist.The invention relates to an electrical high-voltage circuit breaker, the interrupter units and a housing for intermediate gears are carried by a support column made of insulators, in which a drive arranged on the ground side, the movable switch contacts of each interrupter unit via a switch rod arranged in the support column made of insulating material and that of several Lever existing intermediate gear operated, one of the levers is mounted on a pin in the housing of the intermediate gear.

Ein derartiger Hochspannungs-Leistungsschalter ist z. B. aus der US-PS 4 105 879 bekannt. Der Bolzen zur Lagerung des einen Hebels des Zwischengetriebes dient für diesen als Drehpunkt.Such a high voltage circuit breaker is e.g. B. from US-PS 4 105 879 known. The bolt for mounting the one lever of the intermediate gear serves as a fulcrum for it.

Außerdem muß der auf dem Bolzen gelagerte Hebel in seiner Lage genau ausgerichtet sein und darf unter Krafteinwirkung nicht in axialer Richtung ausweichen, da die in den Unterbrechereinheiten liegenden beweglichen Schaltkontakte sich auf keinen Fall verkanten dürfen. Eine derartige genaue Ausrichtung des Hebels ist aber nur über bearbeitete Flächen möglich, deren Herstellung bei einem gegossenen Gehäuse in Abhängigkeit von ihrer Lage sehr aufwendig ist. Der Erfindung liegt daher die Aufgabe zugrunde, die Gestaltung der Lagerung des Hebels des Zwischengetriebes so auszubilden, daß für diese genaue seitliche Festlegung des Hebels möglichst wenig Bearbeitungsschritte erforderlich sind.In addition, the lever mounted on the bolt must be precisely aligned in its position and must not deviate in the axial direction under the action of force, since the movable switching contacts located in the interrupter units must not tilt under any circumstances. Such a precise alignment of the lever is only possible over machined surfaces, the production of which is very complex in a cast housing, depending on its position. The invention is therefore based on the object to design the design of the bearing of the lever of the intermediate gear so that as few machining steps are required for this precise lateral fixing of the lever.

Zur Lösung dieser Aufgabe ist bei einem elektrischen Hochspannungs-Leistungsschalter der eingangs beschriebenen Art die Lagerung eines Hebels des Zwischengetriebes über einen Bolzen in dessen Gehäuse gemäß der Erfindung so ausgebildet, daß im Innern des gegossenen Gehäuses für jedes Zwischengetriebe zwei parallel zueinander verlaufende Wangen vorgesehen sind, die hinter einer mit einem Deckel gasdicht verschlossenen Öffnung im Gehäuse liegen, wobei der Deckel ebenfalls parallel zu den Wangen steht und Deckel und Wangen zumindest angenähert senkrecht zur Längsachse des Bolzens verlaufen,
daß in den Wangen fluchtende Bohrungen gleichen Durchmessers vorgesehen sind, die den Bolzen aufnehmen,
daß der Bolzen in zwei Bereiche mit unterschiedlichen Durchmessern unterteilt ist, von denen der dem Deckel zugewandte den größeren Durchmesser, entsprechend dem Durchmesser der Bohrungen in den Wangen, und der andere einen kleineren Durchmesser entsprechend dem Innendurchmesser einer in der hinteren Wange mit vor der Wange liegender Stirnfläche angeordneten Hülse aufweist, wobei die Länge dieses anderen Bereiches so gewählt ist, daß der Absatz zwischen den unterschiedlichen Durchmessern hinter der vorderen Wange liegt,
daß dieser Absatz und die Stirnfläche der Hülse Anlageflächen für den auf dem Bolzen gelagerten Hebel des Zwischengetriebes bilden und daß der Deckel den Bolzen in axialer Richtung fixiert.To solve this problem, the storage of a lever of the intermediate gear is designed via a bolt in its housing according to the invention in an electrical high-voltage circuit breaker of the type described above so that Inside the cast housing, two parallel cheeks are provided for each intermediate gearbox, which are located behind an opening in the housing that is sealed gas-tight with a lid, the lid also being parallel to the cheeks and the lid and cheeks at least approximately perpendicular to the longitudinal axis of the bolt ,
that aligned holes of the same diameter are provided in the cheeks, which receive the bolt,
that the bolt is divided into two areas with different diameters, of which the lid facing the larger diameter, corresponding to the diameter of the holes in the cheeks, and the other a smaller diameter corresponding to the inner diameter of one in the rear cheek with lying in front of the cheek End face arranged sleeve, the length of this other area is selected so that the paragraph is between the different diameters behind the front cheek,
that this shoulder and the end face of the sleeve form contact surfaces for the lever of the intermediate gear mounted on the bolt and that the cover fixes the bolt in the axial direction.

Die Lagerung des Hebels des Zwischengetriebes erfolgt also über einen Bolzen, der über eine Öffnung in das gegossene Gehäuse des Zwischengetriebes eingeführt ist und seinerseits in zwei parallelen, im wesentlichen senkrecht zu seiner Längsachse stehenden Wangen gelagert ist. Dazu weisen diese Wangen fluchtende Bohrungen gleichen Durchmessers auf, der dem größeren Durchmesser des Bolzens in seinem der Öffnung bzw. dem diese verschließenden Deckel zugewandten Bereich entspricht. An den dem Deckel abgewandten anderen Ende des Bolzens hat dieser einen zwischen den Wangen beginnenden Bereich kleineren Durchmessers, dessen Länge so gewählt ist, daß der Absatz zwischen beiden Durchmesserbereichen des Bolzens stets hinter der vorderen Wange zu liegen kommt. In der Bohrung der hinteren Wange liegt eine Hülse, deren Innendurchmesser dem kleineren Bolzendurchmesser entspricht und deren Stirnfläche vor der hinteren Wange liegt.The bearing of the lever of the intermediate gearbox is thus carried out via a bolt which is inserted through an opening into the cast housing of the intermediate gearbox and is in turn mounted in two parallel cheeks which are substantially perpendicular to its longitudinal axis. For this purpose, these cheeks have aligned bores of the same diameter, which corresponds to the larger diameter of the bolt in its area facing the opening or the cover closing it. At the other end of the bolt facing away from the cover, the latter has a region of smaller diameter beginning between the cheeks, the length of which is selected such that the shoulder between the two diameter regions of the bolt always comes to lie behind the front cheek. In the hole in the rear cheek is a sleeve, the inside diameter of which is smaller Corresponds to the bolt diameter and the end face lies in front of the rear cheek.

Der Absatz auf dem Bolzen und die Stirnfläche dieser Hülse bilden Anlageflächen für die Seitenflächen des auf dem Bolzen gelagerten Hebels des Zwischengetriebes, so daß dieser in axialer Richtung des Bolzens eindeutig festgelegt ist. Eine Bearbeitung von Gehäusewänden, insbesondere der Seitenwände der Gehäusewangen, ist somit nicht notwendig. Es sind vielmehr nur von einer Seite her durchzuführende Bohrungen erforderlich. Trotzdem ist eine genaue Ausrichtung des gelagerten Hebels sichergestellt, die auch bei Auftreten von Querkräften nicht verändert werden kann.The shoulder on the bolt and the end face of this sleeve form contact surfaces for the side surfaces of the lever of the intermediate gear mounted on the bolt, so that this is clearly defined in the axial direction of the bolt. It is therefore not necessary to process housing walls, in particular the side walls of the housing cheeks. Rather, it is only necessary to drill holes from one side. Nevertheless, an exact alignment of the mounted lever is ensured, which cannot be changed even when lateral forces occur.

Es ist zweckmäßig, daß der Abstand zwischen beiden Wangen des Gehäuses größer als die Dicke des auf dem Bolzen gelagerten Hebels ist und daß dieser Hebel an der Bohrung zur Aufnahme des Bolzens zwei Bundbuchsen trägt, von denen eine mit ihrer Stirnfläche am Absatz des Bolzens und die andere mit ihrer Stirnfläche an der vorstehenden Stirnfläche der Hülse in der hinteren Wange anliegt. Dadurch können auch die Seitenflächen des Hebels unbearbeitet bleiben. Die Bundbuchsen bestehen mit Vorteil aus abriebfreiem Kunststoff, der eine geringe Haftung aufweist und daher gut gleitet, wie er z. B. unter dem Handelsnamen Teflon® erhältlich ist.It is expedient that the distance between the two cheeks of the housing is greater than the thickness of the lever mounted on the bolt and that this lever carries two collar bushings on the bore for receiving the bolt, one of which with its end face on the shoulder of the bolt and the the other rests with its end face on the projecting end face of the sleeve in the rear cheek. This allows the side surfaces of the lever to remain unprocessed. The flanged bushes are advantageously made of abrasion-free plastic, which has low adhesion and therefore slides well, as it is e.g. B. is available under the trade name Teflon®.

Im folgenden sei die Erfindung noch anhand des in den Figuren 1 und 2 der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Figur 1 zeigt schematisch eine, teilweise geschittene, Ansicht des Gehäuses der Zwischengetriebe eines elektrischen Hochspannungs-Leistungsschalters. In Figur 2 ist ein Längsschnitt durch den Lagerbolzen eines Zwischengetriebes und den ihm umgebenen Gehäuseteilen dargestellt.The invention will be explained in more detail below with reference to the exemplary embodiment shown in FIGS. 1 and 2 of the drawing. Figure 1 shows schematically a partially sectioned view of the housing of the intermediate gear of an electrical high-voltage circuit breaker. FIG. 2 shows a longitudinal section through the bearing pin of an intermediate gear and the housing parts surrounding it.

Bei einem elektrischen Hochspannungs-Leistungsschalter wird das Gehäuse 1 für die Zwischengetriebe von der nur angedeuteten Stützersäule 2 getragen. Diese enthält eine von einem Antrieb her betätigte Schaltstange, deren Bewegung über die Zwischengetriebe jeweils zu den beiden, ebenfalls nur angedeuteten, Unterbrechereinheiten 3 übertragen wird. Das Zwischengetriebe besteht jeweils aus mehreren miteinander verbundenen Hebeln, von denen der eine Hebel 4 über den Bolzen 5 im Gehäuse 1 gelagert ist. Zu diesem Zweck enthält das Gehäuse 1 eine Öffnung, die mit einem Deckel 7 gasdicht verschlossen ist. Dazu trägt der Deckel 7 eine Dichtung 8.In the case of an electrical high-voltage circuit breaker, the housing 1 for the intermediate gear is only indicated by the one Support column 2 worn. This contains a shift rod actuated by a drive, the movement of which is transmitted via the intermediate gears to the two, likewise only indicated, interrupter units 3. The intermediate gear consists of several interconnected levers, of which one lever 4 is mounted in the housing 1 via the bolt 5. For this purpose, the housing 1 contains an opening which is closed gas-tight with a cover 7. For this purpose, the cover 7 carries a seal 8.

Zur Lagerung des Bolzens 5 sind in dem gegossenen Gehäuse 1 hinter der Öffnung 6 zwei Gehäusewangen 9, 10 eingegossen, die zueinander und zum Deckel 7 parallel stehen und angenähert senkrecht zur Längsachse des Bolzens 5 verlaufen. In den Wangen 9, 10 sind fluchtende Bohrungen 11, 12 vorgesehen, die den gleichen, durch Pfeile angedeuteten Durchmesser 13 aufweisen, wie der Lagerbolzen 5 in seinem dem Deckel 7 zugewandten Bereich 14, der ebenfalls durch Pfeile angedeutet ist. Die Bohrung 12 in der hinteren Gehäusewange 10 durchsetzt diese nicht völlig und bildet mithin ein Sackloch. In diese Bohrung 12 ist eine Hülse 15 eingesetzt, die auf der einen Seite an der Rückwand 16 des Sacklochs anliegt und deren Stirnwand 17 vor der vorderen Seitenwand 18 der Gehäusewange 10 liegt.To support the bolt 5, two housing cheeks 9, 10 are cast in the cast housing 1 behind the opening 6, which are parallel to one another and to the cover 7 and are approximately perpendicular to the longitudinal axis of the bolt 5. Aligned bores 11, 12 are provided in the cheeks 9, 10 and have the same diameter 13 indicated by arrows as the bearing pin 5 in its area 14 facing the cover 7, which is also indicated by arrows. The bore 12 in the rear housing cheek 10 does not penetrate it completely and therefore forms a blind hole. In this bore 12, a sleeve 15 is inserted, which rests on one side against the rear wall 16 of the blind hole and whose end wall 17 lies in front of the front side wall 18 of the housing cheek 10.

Auf dem Bolzen 5 ist ein zweiter, durch Pfeile 19 angedeuteter Bereich kleineren Durchmessers vorgesehen, dessen Durchmesser dem Innendurchmesser der Hülse 15 entspricht. Auf dem Bolzen 5 bildet sich also zwischen dem Bereich 14 größeren Durchmessers und dem Bereich 19 kleineren Durchmessers der Absatz 20. Dieser Absatz 20 liegt hinter der hinteren Seitenwand 21 der vorderen Gehäusewange 9. Sowohl der Absatz 20 als auch die Stirnwand 17 der Hülse 15 bilden genau definierte Anlageflächen für die seitliche Festlegeung des Hebels 4 des Zwischengetriebes, ohne daß dafür die Seitenwände 21 bzw. 18 der Gehäusewangen 9, 10 bearbeitet werden mußten.A second region of smaller diameter, indicated by arrows 19, is provided on the bolt 5, the diameter of which corresponds to the inner diameter of the sleeve 15. The shoulder 20 is thus formed on the bolt 5 between the region 14 of larger diameter and the region 19 of smaller diameter. This shoulder 20 lies behind the rear side wall 21 of the front housing cheek 9. Both the shoulder 20 and the end wall 17 of the sleeve 15 form precisely defined contact surfaces for the lateral fixing of the lever 4 of the intermediate gear, without the side walls 21 or 18 of the housing cheeks 9, 10 having to be processed for this.

Um auch eine Bearbeitung der Seitenwände des Hebels 4 zu vermeiden, trägt dieser im Bereich seiner Bohrung 22 zur Aufnahme des Bolzens 5 zwei Bundbuchsen 23 bzw. 24 bei denen die Stirnflächen ihres Bundes jeweils die Anlageflächen bilden.In order to also avoid machining of the side walls of the lever 4, it carries two collar bushes 23 and 24 in the region of its bore 22 for receiving the bolt 5, in which the end faces of their collar each form the contact surfaces.

Diese gemäß der Erfindung ausgebildete Anordnung der Lagerung des Hebels 4 des Zwischengetriebes ermöglicht eine genaue seitliche Ausrichtung des Hebels 4 und verhindert ein Auswandern des Bolzens 5 in seiner axialen Richtung. Die Lagerung erfordert nur die Herstellung von fluchtenden Bohrungen in den Gehäusewangen 9, 10. Der Deckel 7 sichert den gasdichten Verschluß der Öffnung 6 im Gehäuse 1 und fixiert gleichzeitig den Bolzen 5 in seiner Lage.This arrangement of the mounting of the lever 4 of the intermediate gear designed according to the invention enables precise lateral alignment of the lever 4 and prevents the bolt 5 from migrating in its axial direction. The storage only requires the production of aligned bores in the housing cheeks 9, 10. The cover 7 ensures the gas-tight closure of the opening 6 in the housing 1 and at the same time fixes the bolt 5 in its position.

Claims (4)

1. An electric high-voltage power circuit-breaker, the interrupter units (3) of which and a housing (1) for intermediate gears are carried by an insulator column (2) of insulators, in which a drive arranged on the earth side activates the movable switch contacts of each interrupter unit, by way of a drive rod of insulating material, arranged in the insulator column, as well as the intermediate gear consisting of several levers, wherein one of the levers (4) is mounted by way of a bolt (5) in the housing (1) of the intermediate gear,
characterised in that
in the interior of the cast housing (1) for each intermediate gear there are provided two cheeks (9, 10) running parallel to each other, which lie behind an opening (6) in the housing (1) sealed in a gas-tight manner with a cover (7), wherein the cover (7) is also parallel to the cheeks (9, 10) and the cover (7) and cheeks (9, 10) extend at least approximately perpendicular to the longitudinal axis of the bolt (5),
in that in the cheeks (9,10) there are provided aligning bores (11, 12) of the same diameter (13), which accept the bolt (5),
in that the bolt (5) is divided into two regions (14, 19) with different diameters, the one of which that faces the cover (7) having the largest diameter (13), corresponding to the diameter of the bores (11, 12) in the cheeks (9, 10), and the other having a smaller diameter corresponding to the inner diameter of a sleeve (15), arranged in the rear cheek (10) with its end face (17) lying in front of the cheek (10), wherein the length of this other region (19) is selected such that the step (20) between the different diameters lies behind the front cheek (9),
in that this step (20) and the end face (17) of the sleeve form bearing faces for the lever (4) of the intermediate gear mounted on the bolt (5), and
in that the cover (7) fixes the bolt (5) in the axial direction.
2. An electric high-voltage power circuit-breaker according to claim 1, characterised in that the distance between the two cheeks (9, 10) of the housing (1) is greater than the thickness of the lever (4) mounted on the bolt (5) and in that this lever (4) carries on the bore (22) for accepting the bolt (5) two flange sleeves (23, 24), the end faces of which rest on the step (20) of the bolt (5) and on the other end face (17) of the sleeve (14) in the rear cheek (10).
3. An electric high-voltage power circuit-breaker according to claim 2, characterised in that the flange sleeves (23, 24) consist of plastics which slide well with low adhesion or low abrasion.
4. An electric high-voltage power circuit-breaker according to claim 1 or 2, characterised in that the bore (12) is formed in the rear cheek (10) as a blind hole, and in that the sleeve (15) rests on the rear wall (16) of the bore (12).
EP88730066A 1987-03-31 1988-03-17 High-voltage power circuit breaker Expired - Lifetime EP0288417B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88730066T ATE72611T1 (en) 1987-03-31 1988-03-17 HIGH VOLTAGE ELECTRICAL CIRCUIT BREAKER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8704769U 1987-03-31
DE8704769U DE8704769U1 (en) 1987-03-31 1987-03-31 Electrical high-voltage circuit breaker

Publications (2)

Publication Number Publication Date
EP0288417A1 EP0288417A1 (en) 1988-10-26
EP0288417B1 true EP0288417B1 (en) 1992-02-12

Family

ID=6806532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88730066A Expired - Lifetime EP0288417B1 (en) 1987-03-31 1988-03-17 High-voltage power circuit breaker

Country Status (4)

Country Link
EP (1) EP0288417B1 (en)
JP (1) JP2563096B2 (en)
AT (1) ATE72611T1 (en)
DE (2) DE8704769U1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1080354A (en) * 1964-05-27 1967-08-23 English Electric Co Ltd Improvements in or relating to electric switchgear
JPS52110473A (en) * 1976-03-12 1977-09-16 Hitachi Ltd Electromagnetic buffer gas breaker

Also Published As

Publication number Publication date
DE3868343D1 (en) 1992-03-26
ATE72611T1 (en) 1992-02-15
JPS63257146A (en) 1988-10-25
DE8704769U1 (en) 1988-07-28
JP2563096B2 (en) 1996-12-11
EP0288417A1 (en) 1988-10-26

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