EP0632927B1 - Interrupteur a vide multipolaire muni d'un dispositif isolant entourant chacun des tubes interrupteurs a vide - Google Patents

Interrupteur a vide multipolaire muni d'un dispositif isolant entourant chacun des tubes interrupteurs a vide Download PDF

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Publication number
EP0632927B1
EP0632927B1 EP93905194A EP93905194A EP0632927B1 EP 0632927 B1 EP0632927 B1 EP 0632927B1 EP 93905194 A EP93905194 A EP 93905194A EP 93905194 A EP93905194 A EP 93905194A EP 0632927 B1 EP0632927 B1 EP 0632927B1
Authority
EP
European Patent Office
Prior art keywords
pole
vacuum interrupter
insulating
vacuum
chamber
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
EP93905194A
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German (de)
English (en)
Other versions
EP0632927A1 (fr
Inventor
Klaus-Günther Berndt
Detlev Schmidt
Kathrina Marek
Johannes Banghard
Michael Hahn
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
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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
Publication of EP0632927A1 publication Critical patent/EP0632927A1/fr
Application granted granted Critical
Publication of EP0632927B1 publication Critical patent/EP0632927B1/fr
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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • 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
    • H01H33/022—Details particular to three-phase circuit breakers

Definitions

  • a vacuum switch of this type is known for example from DE-B-23 22 372.
  • the insulating arrangements are essentially cylindrical and are divided transversely to the longitudinal axis.
  • the head part of each insulating arrangement contains a bearing for a two-armed lever for driving the associated vacuum interrupter.
  • a lever part protruding from the head part is connected to a drive rod of the drive device.
  • Several such pole units are attached to a drive housing in accordance with the desired number of poles.
  • the invention is based on the object, while maintaining the principle of all-round protection of the vacuum interrupters, to simplify their assembly in the insulating arrangement and, at the same time, to create the prerequisite for extensive integration of pole-related assemblies such as connecting devices, contact force springs, tube-related drive parts or similar assemblies.
  • the entire current path of a pole can now be mounted in one of the shell-like insulation pieces before the further shell-like insulation piece is placed on top and a closed pole unit is formed.
  • Several such pole units can be joined together and are then connected to a pole block by clamping bolts.
  • the vacuum switch is essentially divided into two large assemblies, namely the pole block with the protruding side walls and the drive device which is to be fastened between the side walls.
  • the insulating pieces are dimensioned so that they protrude beyond the associated vacuum interrupter, that the protruding areas for forming chambers are at least partially delimited by wall sections and that the shape of the chambers is adapted to electrical and / or mechanical components which are suitable for the Operation of the vacuum interrupter are provided.
  • Such an additional chamber can be, for example, a measuring chamber which is connected to the connection chamber arranged and is provided for receiving a current transformer.
  • This arrangement is particularly expedient in connection with a connecting piece extending in the extension of the longitudinal axis of the vacuum interrupter or parallel thereto. It offers the option of plugging a current transformer onto the connector if necessary and replacing it in a simple manner.
  • the measuring chamber provided for receiving a current transformer can be closed off from the outside by an insulating closure piece to be connected to the shell-like insulating pieces, which has a lead-through opening for the associated connecting piece.
  • the closure piece not only supports the connector, but also fixes the current transformer. The support function for the connector also arises when no current transformer is used and only the empty measuring chamber is bridged by the closure piece.
  • the insulating arrangements can be provided with further chambers.
  • the insulating arrangement can contain, on the side of the space intended for receiving the associated vacuum interrupter, a spring chamber for receiving at least one spring which provides the contact force of the vacuum interrupter and on the opposite side a drive chamber for receiving a lever arrangement which transmits the drive movement of the drive device to the vacuum interrupter.
  • the lever arrangement can be designed in such a way that there is a favorable connection or coupling to the drive device.
  • the insulating arrangements can each have a wall section with an undercut below the spring chamber for locking a bolt serving as a fixed abutment of a contact force spring.
  • Figure 1 shows schematically a multi-pole vacuum switch in a plan view.
  • FIG. 2 shows a pole unit of the multi-pole vacuum switch according to FIG. 1 in the open state.
  • FIG. 3 shows the pole unit according to FIG. 2 in the closed state with a view of one of the narrow sides.
  • FIG. 4 shows one of the shell-like insulating pieces from which the insulating arrangement of the pole unit according to FIGS. 2 and 3 is composed.
  • FIG. 5 shows the insulating piece according to FIG. 4 from above.
  • the vacuum switch 1 shown in FIG. 1 has a three-pole design and has three pole units 2 which are arranged next to one another without a gap.
  • the pole block 3 formed in this way is held together by clamping bolts 4, which penetrate the pole units 2 and thereby also capture side walls 5, which form the lateral termination of the pole block 3 and which project beyond the pole block 3.
  • a drive device 6 which, in a known manner, for switching the vacuum interrupters contained in the pole units 2 on and off serves.
  • pole units 2 Details of one of the pole units 2 are explained in more detail below with reference to FIGS. 2 to 5. First of all, the basic structure is described with reference to FIGS. 2 and 3.
  • the pole unit 2 has a vacuum interrupter 10, which has a housing 11 with an upper end flange 12 and a lower end flange 13. The end flange 13 also forms the one connection point of the vacuum interrupter 10.
  • a connection rail 14 bent at right angles is provided as the connection device.
  • a displaceably mounted connecting bolt 15 extends through the upper end flange 12, to which one leg 16 of a flexible current band 17 is fastened.
  • the current band 17 is approximately loop-shaped and has a shorter leg 18 which is approximately parallel to the leg 16 and to which a straight connecting rail 20 is connected.
  • the connecting rail 20 extends parallel to the extension of the longitudinal axis of the vacuum interrupter 10 upwards, while the legs of the current band 17 are arranged transversely to this longitudinal axis.
  • the parts described above form the current path of the pole unit 2.
  • This current path is contained in an insulating arrangement 23 formed from two approximately shell-shaped insulating pieces 21 and 22.
  • the shape of the insulating piece 22 is explained in more detail with reference to FIGS. 4 and 5.
  • the insulating piece 22 has wall sections projecting from an essentially flat wall part 24, through which a number of Spaces or chambers are formed.
  • Two wall sections 25 and 26 are provided with approximately semicircular recesses 27 and 28, which are adapted to the shape of the end flanges 12 and 13 of the vacuum interrupter 10.
  • a wall for accommodating the vacuum interrupter 10 is formed by the wall sections 25 and 26 in connection with corresponding wall sections of the associated mirror-image insulating piece 21. If both semicircular recesses are adapted to the end flanges 12 and 13, the vacuum interrupter 10 is firmly clamped at both ends. If, on the other hand, it is desired to fix only one end of the vacuum interrupter 10, for example the end flange 12, the recess 28 can be of an enlarged design, as shown by broken lines in FIG. 4.
  • connection chamber 31 is connected to a drive chamber 29 located to the side of the vacuum interrupter 10.
  • Upper wall parts 32 and 33 extend approximately parallel to the longitudinal axis of the vacuum interrupter chamber 10 (FIG. 2) and each contain a recess 34 for inserting a nut.
  • Figures 2 and 3 show that by placing a closure piece 35 which extends over the entire width of the insulating arrangement 23 and is connected to the insulating pieces 21 and 22 via a total of four fastening screws 36, a measuring chamber 37 is formed in which a dashed line in its outline indicated current transformer 38 can be accommodated.
  • the wall section 30 and the closure piece 35 have aligned openings for the passage of the above-mentioned upper connecting rail 20.
  • FIG. 4 also shows on the right side of the space provided for receiving the vacuum interrupter an angular wall section 40, on the underside of which there is an undercut 41.
  • a spring chamber 42 is formed which, according to FIGS. 2 and 3, serves to receive two contact force springs 43.
  • the contact force springs 43 are shown in the untensioned state, as it results after the installation of the current path and the connection of the movable connecting bolt 15 with parts to be explained.
  • the pretension of the contact force springs 43 required for operation is brought about by inserting a bolt 44 indicated by a dot-dash line in lower eyelets 45 of the two contact force springs 43 and hooking this bolt into the undercuts 41 of the two insulating pieces 21 and 22 belonging together.
  • the drive parts are free of force and therefore the vacuum interrupter 10 is in the on state under the influence of atmospheric air pressure.
  • the drive device 6 shown schematically in FIG. 1 interacts according to FIG. 2 with a clutch lever 46 of each of the pole units 2.
  • the coupling lever 46 is pivotally mounted on a bolt 47 (FIG. 2) which engages in bearing eyes 48 of the insulating pieces 21 and 22 at both ends.
  • One of the bearing eyes 48 is shown in FIG. 4.
  • An adjustable coupling rod 50 which extends approximately parallel to the longitudinal axis of the vacuum interrupter 10, is located in the drive chamber 29 and connects the coupling lever 46 to a drive lever 51 located in the connection chamber 31.
  • This is formed by an approximately U-shaped sheet metal part and has legs 52 and one Middle part 53, which does not have to extend over the entire length of the legs 52.
  • the Drive lever 51 is mounted on the displaceable connecting bolt 15 by means of a bearing bolt 54.
  • Another hinge pin 55 extends through the legs 52 and engages with its ends in a window-like recess 56 shown in dashed lines, the lower edge of which forms a stop surface 57 for the hinge pin 55.
  • An end part 58 of the drive lever 51 projecting beyond the hinge pin 54 serves as an abutment for the mentioned contact force springs 43, either directly or by means of the tabs 59 shown in connection with a pin 60 connecting the tabs 59.
  • the flexible current band 17 lies essentially completely between the legs 52 of the drive lever 51 and is accommodated in a very space-saving manner in this way.
  • the desired function is obtained in that the lower leg 16 of the current band 17 can be supported against the central part 53, while the upper leg 18 bears against the wall section 30. A spreading the legs 16 and 18 of the current band 17, depending on the current flowing force therefore presses the drive lever 51 downward such that the contact force of the vacuum interrupter 10 is increased.
  • the hinge pin 55 When switched on, the hinge pin 55 is at a certain distance from the stop surface 57, so that the bearing pin 54 forms the pivot bearing of the drive lever 51. If the drive device 6 (FIG. 1) is released for switching off, which corresponds to a release of the clutch lever 46, the right end of the drive lever 51, which is connected to the coupling rod 50, loses its hold. The drive lever 51 then pivots about its bearing pin 54 counterclockwise until the hinge pin 55 arrives at the stop surface 57 and now the stop surface 57 forms the pivot bearing of the drive lever 51.
  • the contact springs 43 now act opening with the lever arm of the end part 58 of the drive lever 51.
  • the use of springs in such a way that they act both as contact springs and as opening springs is known per se in vacuum switches, such as DE-A-34 14 016 can be seen.
  • the insulating pieces 21 and 22 are provided with aligned through openings 61.
  • the insulating pieces 21 and 22 are held together before their final connection by the clamping bolts 4 by means of connecting screws 62, pass through the wall sections of the insulating pieces 21 and 22 and engage in the connecting rails 14 and 20.
  • the use of the insulating pieces makes it possible to achieve a very space-saving arrangement of the vacuum interrupters, including the associated assemblies.
  • the loop-shaped current band is integrated in the drive parts with practically no additional space requirement. Therefore, the invention is particularly suitable for the construction of compact switching devices, for. B. for circuit breakers in the voltage range up to 1000 V.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

Interrupteur à vide multipolaire (1) présentant, pour chaque pôle, un dispositif isolant (23) composé de pièces isolantes en forme d'enveloppe (21, 22). Outre un espace destiné à loger les tubes interrupteurs à vide, des chambres sont ménagées par des sections de paroi (25, 26, 30, 32, 33), en vue de loger des composants mécaniques et électroniques d'une unité polaire (2). Ceux-ci comprennent notamment une tresse souple en forme générale de boucle (17), un dispositif à levier (46, 50, 51), des ressorts de force à contact (43) et un transformateur d'intensité (38). Tous les boulons de tension (4) traversant les unités polaires (2) relient lesdites unités polaires (2) à un bloc polaire (3). L'invention convient pour application dans des interrupteurs de puissance à vide, notamment pour de basses tensions de service.

Claims (6)

  1. Interrupteur multipolaire à vide (1) présentant les caractéristiques suivantes :
    - un tube interrupteur à vide (10) pour chaque pôle,
    - chaque tube interrupteur à vide (10) comporte un boîtier sensiblement cylindrique (11), et ce boîtier (11) a des flasques d'extrémité (12,13) qui établissent une fermeture axiale et ont une forme cylindrique, ainsi qu'une broche de raccordement (15) qui s'étend à travers l'un (12) des flasques d'extrémité et qui est montée de manière à être déplaçable pour la fermeture et l'ouverture,
    - chacun des tubes interrupteurs à vide (10) est entouré d'un dispositif d'isolation (23),
    - les dispositifs d'isolation (23) de tous les pôles sont disposés côte-à-côte et comprennent une chambre de raccordement (31), qui est dans le prolongement axial du tube interrupteur à vide associé (10) et dans laquelle pénètre la broche déplaçable de raccordement (15) du tube interrupteur à vide (10),
    - la chambre de raccordement (31) contient une bande conductrice (17) en forme de boucle servant à relier la broche de raccordement déplaçable (15) à une pièce extérieure de raccordement (20),
    - un dispositif d'entraînement (6) commun à tous les pôles pour la fermeture et l'ouverture des tubes interrupteurs à vide (10) de tous les pôles,
    - un levier d'entraînement (51) pour chacun des tubes interrupteurs à vide (10) et qui est monté de manière à pouvoir basculer dans le dispositif d'isolation associé (23),
    caractérisé par les caractéristiques supplémentaires suivantes :
    - chaque dispositif d'isolation (23) est constitué de deux pièces d'isolation (21,22) en forme de coques qui reçoivent entre eux le tube interrupteur à vide associé (10) et qui ont chacun au moins un évidement (27,28) de forme approximativement semi-cylindrique et adapté à l'un des flasques d'extrémité (12,13) du tube interrupteur à vide (10),
    - la bande conductrice (17) est disposée dans la chambre de raccordement (31), en ayant des branches (16,18) qui s'étendent transversalement par . rapport à l'axe longitudinal du tube interrupteur à vide (10), de telle sorte que des forces, qui apparaissent du fait du passage d'un courant dans la bande conductrice (17), peuvent être utilisées pour compenser des forces rompant le contact, à l'intérieur du tube interrupteur à vide (10),
    - les pièces d'isolation (21,22) ont chacune au moins deux ouvertures de passage (54) destinées à la réception de boulons de serrage (4) qui traversent toutes les pièces d'isolation (21,22), et
    - un bloc polaire (3), formé des dispositifs d'isolation (23), est disposé entre des parois latérales (5), qui s'étendent au-delà du bloc polaire (3), pour la fixation du dispositif d'entraînement (6).
  2. Interrupteur à vide selon la revendication 1, caractérisé en ce que les pièces d'isolation (21,22) ont des dimensions telles qu'elles s'étendent au-dessus du tube interrupteur sous vide associé (10), que les parties en débord sont limitées au moins partiellement par des éléments de paroi (25,26,30,40,32,33), pour la formation de chambres (31,37) et que la configuration des chambres (27,29,31,37,42) est adaptée à des composants électriques et mécaniques (17,43), qui sont prévus pour le fonctionnement du tube interrupteur à vide (10).
  3. Interrupteur à vide multipolaire selon la revendication 2, caractérisé par le fait qu'à la suite de la chambre de raccordement (31) est disposée une chambre de mesure (37) qui est destinée à recevoir un transformateur d'intensité (38), et qui est traversée par la pièce de raccordement (20) étendant dans le prolongement de l'axe longitudinal du tube interrupteur à vide (10) ou parallèlement à ce dernier et relié à l'une (18) des branches de la bande conductrice (17).
  4. Interrupteur à vide multipolaire suivant la revendication 3, caractérisé par le fait que la chambre de mesure (37) est fermée par une pièce de fermeture isolante (35), qui doit être relié aux deux pièces d'isolation (21,22) d'un dispositif d'isolation (23) et qui comporte une ouverture de traversée de la pièce de raccordement associé (20).
  5. Interrupteur à vide multipolaire suivant la revendication 1, caractérisé par le fait que les dispositifs d'isolation (23) comprennent, latéralement par rapport à l'espace destiné à la réception de l'interrupteur à vide associé (10), une chambre à ressort (24) destiné à la réception d'au moins un ressort (43) de force de contact, qui fournit la force de contact du tube interrupteur à vide (10), et, sur le côté opposé, une chambre d'entraînement (29) destinée à recevoir un dispositif à leviers (46,50), qui transmet le mouvement d'entraînement du dispositif d'entraînement (6) au tube interrupteur à vide (10).
  6. Interrupteur à vide multipolaire selon la revendication 5, caractérisé par le fait que dans un élément de paroi (40) délimitant la chambre à ressort (24) est aménagée une partie en contre-dépouille (4) destinée à l'encliquetage d'un axe (44) utilisé comme support fixe du ressort (43) de force de contact.
EP93905194A 1992-03-27 1993-03-12 Interrupteur a vide multipolaire muni d'un dispositif isolant entourant chacun des tubes interrupteurs a vide Expired - Lifetime EP0632927B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4210716A DE4210716A1 (de) 1992-03-27 1992-03-27 Mehrpoliger Vakuumschalter mit einer jede Vakuumröhre umgebenden Isolieranordnung
DE4210716 1992-03-27
PCT/DE1993/000240 WO1993020570A1 (fr) 1992-03-27 1993-03-12 Interrupteur a vide multipolaire muni d'un dispositif isolant entourant chacun des tubes interrupteurs a vide

Publications (2)

Publication Number Publication Date
EP0632927A1 EP0632927A1 (fr) 1995-01-11
EP0632927B1 true EP0632927B1 (fr) 1996-01-03

Family

ID=6455645

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EP93905194A Expired - Lifetime EP0632927B1 (fr) 1992-03-27 1993-03-12 Interrupteur a vide multipolaire muni d'un dispositif isolant entourant chacun des tubes interrupteurs a vide

Country Status (5)

Country Link
US (1) US5521348A (fr)
EP (1) EP0632927B1 (fr)
JP (1) JP3599736B2 (fr)
DE (2) DE4210716A1 (fr)
WO (1) WO1993020570A1 (fr)

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DE4419380C1 (de) * 1994-05-30 1995-10-19 Siemens Ag Leistungsschaltermodul
DE19505370C2 (de) * 1995-02-17 2000-11-02 Abb Patent Gmbh Vakuumschalter
DE19525288C2 (de) * 1995-07-03 2002-08-01 Siemens Ag Mehrpoliger Vakuumschalter mit parallelen Polen
DE19525286C2 (de) * 1995-07-03 2002-08-01 Siemens Ag Mehrpoliger Vakuumschalter mit einer Antriebsvorrichtung
US6753493B2 (en) * 2001-06-01 2004-06-22 Hubbell Incorporated Electrical circuit interrupting device
FR2848332B1 (fr) * 2002-12-09 2005-02-25 Novexia Interrupteur a coupure sous vide pour lignes electriques a moyenne tension
ITBG20060051A1 (it) * 2006-10-06 2008-04-07 Abb Service S Rl Interruttore di bassa tensione con poli intercambiabili di tipo sigillato
US9177742B2 (en) 2011-10-18 2015-11-03 G & W Electric Company Modular solid dielectric switchgear
US9761394B2 (en) 2013-02-08 2017-09-12 Hubbell Incorporated Current interrupter for high voltage switches
US10978256B1 (en) 2013-03-15 2021-04-13 Innovative Switchgear IP, LLC Electrical switching device
DE102013216018B4 (de) * 2013-08-13 2021-06-02 Siemens Aktiengesellschaft Vorrichtung zur Übertragung von Kräften
DE102014210587A1 (de) * 2014-06-04 2015-12-17 Siemens Aktiengesellschaft Verfahren zur Herstellung eines feststoffisolierten Schalterpols und feststoffisolierter Schalterpol
CN105811293B (zh) * 2016-04-19 2018-08-10 航天银山电气有限公司 一种固体绝缘极柱
EP4128303A4 (fr) 2020-03-31 2024-04-17 Hubbell Inc Système et procédé de fonctionnement d'un commutateur électrique

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Also Published As

Publication number Publication date
DE4210716A1 (de) 1993-09-30
JP3599736B2 (ja) 2004-12-08
DE59301349D1 (de) 1996-02-15
JPH07505250A (ja) 1995-06-08
US5521348A (en) 1996-05-28
EP0632927A1 (fr) 1995-01-11
WO1993020570A1 (fr) 1993-10-14

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