EP0115739B1 - Interrupteur à vide à deux tubes interrupteurs en série par pôle - Google Patents

Interrupteur à vide à deux tubes interrupteurs en série par pôle Download PDF

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Publication number
EP0115739B1
EP0115739B1 EP83730125A EP83730125A EP0115739B1 EP 0115739 B1 EP0115739 B1 EP 0115739B1 EP 83730125 A EP83730125 A EP 83730125A EP 83730125 A EP83730125 A EP 83730125A EP 0115739 B1 EP0115739 B1 EP 0115739B1
Authority
EP
European Patent Office
Prior art keywords
switch
drive
abutment
contact compression
compression springs
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
Application number
EP83730125A
Other languages
German (de)
English (en)
Other versions
EP0115739A1 (fr
Inventor
Norbert Ing. Grad. Steinemer
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
Publication of EP0115739A1 publication Critical patent/EP0115739A1/fr
Application granted granted Critical
Publication of EP0115739B1 publication Critical patent/EP0115739B1/fr
Expired 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
    • H01H33/60—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
    • H01H2033/6667—Details concerning lever type driving rod 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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc

Definitions

  • a vacuum switch of this type has become known, for example, in the magazine “ Electrical Review”, April 13, 1973, pages 531 to 533, and in the magazine “ electric trains", 78 (1980), issue 8, pages 198 to 202. Further examples of vacuum switches of the type mentioned can be found in the catalog G B64 / 1949 on vacuum switches model VT-123 from Meidensha and in US-A 3597556.
  • the object of the invention is to create an adjustment arrangement for the switching tubes that is easy to handle and operates as error-free as possible.
  • This arrangement enables automatic compensation of manufacturing-related or wear-caused errors when the switch tubes are actuated at the same time. To carry out this compensation, it is only necessary to loosen the fastening elements of the common abutment of the contact force springs and to separate the lever mechanism from the drive device. Both switching tubes then assume the closed position under the influence of the surrounding air pressure, whereby the abutment is shifted into the correct central position. The abutment is then reattached in the neutral position now found and the connection of the lever mechanism to the drive device is restored. Both switching tubes now close and open simultaneously during the switching processes.
  • the invention is particularly advantageously applicable to a vacuum switch of the type mentioned in the introduction, in which the deflection gear comprises a toggle lever system, to the knee joint of which a drive rod guided in its longitudinal direction is connected and the toggle lever causes the movement of the drive rod with an approximately right-angled deflection of the direction of movement to the facing one another Transfer the tappet of the switch tubes.
  • the lever mechanism for each switching tube comprises a two-armed lever, the pivot point between the ends of which is arranged on the drive plunger of the switching tube and the ends of which are indirectly or directly articulated to the deflection gear or to the abutment. In this way, the arrangement of the common abutment of the contact force springs is made possible at an easily accessible location of the vacuum switch. Furthermore, an arrangement with a stationary or with a moving contact force spring can be selected in this way.
  • the invention is also applicable to a vacuum switch in which the contact force springs are inserted into the reversing gear, as can be seen from US-A-3597556.
  • the contact force springs can engage with one end on the end of the two-armed lever facing the drive rod, and the ends of the two-armed lever facing away from the drive rod can be articulated at separate bearing points of the abutment.
  • the synchronization of the switching tubes is also set here by loosening the drive rod and the abutment and reattaching these parts.
  • a space-saving arrangement of the vacuum interrupters with a relatively small mutual distance can be achieved in that the two-armed levers are bent in opposite directions with respect to the pivot points located on the drive tappets.
  • the lever arms of the two-armed lever facing the abutment can also be used as Steering levers are used by selecting the bearing points so that the connecting line of the pivot points on the abutment and on the drive tappet deviates only slightly from the right-angled position to the actuating direction of the switching tubes when switching on and off.
  • Fig. 1 shows a vacuum circuit breaker for the medium voltage range in a side view.
  • FIG. 2 shows the switch-off position and FIG. 3 the switch-on position.
  • Fig. 4 shows the drive parts in a front view with the attachment of the abutment of the contact force springs.
  • FIGS. 2 and 3 a further embodiment is shown in a representation corresponding to FIGS. 2 and 3. 5 shows the switch-off position and FIG. 6 the switch-on position.
  • the vacuum circuit breaker 1 shown in Fig. 1 is provided for the medium voltage range and is used in particular for supplying electrical trains with single-phase alternating current of 16% Hz.
  • a total of three support insulators 3 are attached to a vertical support 2, of which the upper and the lower support insulator each carries a head piece 4, on each of which a switching tube 5 is clamped with its fixed connecting bolt.
  • the two switching tubes 5 are arranged in alignment with one another, with a pole head 6 located between them, which is supported via the third support insulator 3 with respect to the carrier 2.
  • a drive box 7 is fastened to the carrier 2 and contains all the parts required for providing and releasing the drive energy.
  • the structure of the drive device 7 is not explained in detail below, since such drive devices are known in various designs.
  • a drive device provided for vacuum switches is described in DE-B-2717958 (corresponds to US-A-4152562).
  • the drive device 7 has a hand crank 10 in order to be able to charge an energy store, which is then released for activation by a trigger command.
  • An isolating switch rod 11 then executes a substantially rectilinear movement towards the pole head 6, while when switched off it moves in the opposite direction, i.e. in the direction of the drive device 7, executes (double arrow 12).
  • FIG. 1 also shows, insulating struts 13 are arranged between the pole head 6 and the head pieces 4, which, in addition to the support insulators 3, absorb part of the forces occurring when switching on and off.
  • Each of the switching tubes 5 has an axially displaceable drive plunger 15, into which an eyebolt 16 is inserted and fastened by a nut 17.
  • a double-angled lever 21 is mounted on one side and a steering lever 22 on the other side. The steering levers ensure, when the drive plunger 15 is displaced in the direction of the double arrow 23 for switching on and off, that the load on the guide bearing 15 of the drive plunger 15, which is not visible in FIG. 2, is kept as low as possible by transverse forces.
  • each two-armed lever 21 is connected in an articulated manner to a lever 25 of a toggle lever system 26, on the knee joint pin 27 of which the drive rod 11 engages.
  • a straight line guidance of the drive rod 11 and the knee joint bolt 27 is achieved by means of an elongated hole guide 30 in wall parts of the pole head 6.
  • the longer lever arm 31 of each two-armed lever 21 interacts with a contact force spring 32.
  • the contact force springs 32 are designed as helical compression springs and each enclose with their windings a guide rod 33 which are seated on a common bearing pin 34 at their inner ends. This is part of an abutment 35 which has approximately the shape of an approximately U-shaped bracket with leg ends 38 angled outwards (FIG. 4).
  • a disk 36 which rests on the bearing pin 34.
  • a further disk 37 is provided, which transmits the spring force to the lever arm 31 of the two-armed lever 21 via a roller 40 and a hinge pin 41 passing through it.
  • Each of the hinge pins 41 passes through an elongated hole 42 located in the outer end of each guide rod 33.
  • the leg ends 38 of the abutment 35 are provided with elongated holes 43 which are open towards the edges and through which screws 44 extend. Bends 45 of the pole head 6 serve as the support surface for the leg ends 38 of the abutment 35. As can be seen, the elongated holes 43 extend parallel to the longitudinal axis of the contact force springs 32 (FIG. 4). After loosening the screws 44, the abutment 35 thus moves into a neutral position under the influence of a difference in forces.
  • the contact force springs 32 with their guide rods 33 assume an angular position which differs only slightly from the straight-line position.
  • the knee joint pin 27 of the toggle lever system 26 stands near the left end of the elongated hole 30 while the drive rod 11 is shifted to the right by the drive device 7 shown in FIG. 1, the toggle lever system 26 works as a deflection gear and causes a simultaneous shifting of both drive plungers 15 in the sense of switching on. These movements run approximately perpendicular to the longitudinal direction and to the direction of movement of the drive rod 11.
  • the lever mechanism consisting of the two-armed levers 21 and the steering levers 22 is effective, which on the one hand transmits the drive movement to the drive plunger 15 and on the other hand creates a defined contact force by means of the contact force springs 32 . This then results in the switch-on position shown in FIG. 3, in which the levers 25 have closely approached the extended position and the bearing pin 20 is accordingly near the right end of the elongated hole 30.
  • the contact force springs 32 are compressed and, as a result of the pivoting of the two-armed levers 21, their axes are slightly inclined to one another in the opposite direction with respect to FIG. 2.
  • the simultaneous contact and separation of the switching elements of the switching tubes 5 during the switching processes is achieved in the following manner: First, the toggle lever system 26 is separated from the drive device 7, e.g. by loosening the drive rod 11 on the drive device 7 or on the knee joint bolt 27. Furthermore, the screws 44 of the abutment 35 are loosened. The switching tubes 5 now come into the switch-on position under the influence of the surrounding air pressure. The abutment 35 now moves under the influence of an approximately existing difference in force into a neutral position, which corresponds to the switch-on position of both switching tubes 5.
  • the two-armed levers 21 are directly articulated to the deflection gear (toggle lever system 26), while the contact force springs 32 are also supported directly on the abutment 35 or a bearing pin 34.
  • FIG. 5 switch-off position
  • FIG. 6 switch-on position
  • the contact force springs are supported indirectly on the abutment, with the intermediary of the two-armed levers 21, while the two-armed levers are supported in turn are indirectly connected to the reversing gear, with the interposition of the contact force springs.
  • the same reference numerals are used for the matching parts in order to facilitate the comparison. These are in particular the switching tubes 5, the pole head 6 and the support insulator 3 and the drive rod 11, the drive plunger 15 with the eyebolts 16 and the nuts 17.
  • the contact force springs 50 are compression springs which are located in the toggle lever system 51 connected to the drive rod 11. Each contact force spring 50 is seated on a toggle lever 52 and is supported on it via a disk 53. The opposite ends of the contact force springs 50 each abut on a disk 54, which in turn transmits the spring force to a two-armed lever 55 via one set.
  • the toggle levers 52 are each provided with an elongated hole 56 into which a bearing pin 57 engages at one end of each two-armed lever 55. As can be seen in a comparison of FIGS. 5 and 6, the contact force springs 50 are compressed when switched on, the position of the bearing pin 57 changing within the elongated hole 56.
  • the two-armed levers 55 are designed similarly to the levers 21 in FIGS. 2 and 3 and accordingly transmit the movement of the drive rod 11 to the switching tubes 5.
  • the two-armed levers 55 are, however, at their end facing away from the drive rod 11 mounted on an abutment 60 directly on separate bearing pins 58.
  • This abutment is similar to the abutment 35 in FIGS. 2 to 4 as a bracket with legs angled on both sides and is attached to the pole head 6 so that it can be moved in the direction of the double arrow 61 after loosening fasteners and in the new Position again.
  • the setting process can be carried out in an analogous manner, as has already been described.
  • the drive rod 11 is therefore separated from the drive, as a result of which the switching tubes 5 come into the closed position under the influence of the surrounding air pressure.
  • the fasteners of the abutment 60 By loosening the fasteners of the abutment 60 it is achieved that the entire mechanism consisting of springs and levers is in equilibrium and thus both switching tubes 5 are actuated synchronously after the abutment 60 has been fastened in the neutral position.
  • the two-armed levers 21 and 55 are cranked in opposite directions with respect to the pivot points located on the drive tappets of the switching tubes 5. It can be seen from FIGS. 2 and 3 that the offset takes place in such a way that the two lever ends are at a greater distance from one another than the pivot points located on the drive tappets. This creates a sufficient space for the accommodation of the Kon Tactkraftfedern 32 and created for the attack of the toggle lever system 26, while on the other hand, the distance between the drive plunger 15 and the eyebolts 16 inserted into these can be quite small.
  • the two-arm levers 55 according to FIGS.

Landscapes

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

Claims (6)

1. Interrupteur à vide (1 ) comportant deux tubes interrupteurs (5) branchés électriquement en série et approximativement alignés sur un même axe, pour chaque pôle, et un dispositif d'entraînement (7, 11) commun aux deux tubes interrupteurs (5) pour réaliser l'enclenchement et la coupure, ainsi que:
a) une transmission de renvoi servant à fournir deux déplacements mutuellement opposés à partir d'un déplacement uniforme d'entraînement, et
b) un ressort (32; 50) appliquant une force de contact et associé à chaque tube interrupteur (5), remarquable par les caractéristiques suivantes:
c) les deux ressorts (32; 50) appliquant une force de contact possèdent une butée commune (35; 60) fixée de manière à pouvoir être déplacée suivant leur direction d'action, et
d) pour la transmission de la force des ressorts au poussoir d'entraînement (15) de chaque tube interrupteur (5), on utilise un mécanisme à levier relié à l'extrémité libre de chaque ressort (32; 50) appliquant la force de contact et à la transmission de renvoi.
2. Interrupteur à vide suivant la revendication 1, dans lequel la transmission de renvoi est un système à leviers à genouillère, à la genouillère (axe d'articulation de genouillère 27) duquel est reliée une tige d'entraînement (11) guidée suivant sa direction longitudinale et dont les leviers à genouillère (25) transmettent le déplacement de la tige d'entraînement (11 ) moyennant un renvoi éventuellement perpendiculaire de la direction de déplacement, aux poussoirs d'entraînement (15), tournés l'un vers l'autre, des tubes interrupteurs (5), caractérisé par le fait que le mécanisme à levier prévu pour chaque tube interrupteur (5) comporte un levier à deux bras (21 ; 55), dont le point de rotation, situé entre les extrémités, est disposé sur le poussoir d'entraînement (15) du tube interrupteur (5) et dont les extrémités sont reliées directement ou indirectement par articulation à la transmission de renvoi ou à la butée (35; 60).
3. Interrupteur à vide suivant l'une des revendications 1 ou 2, dans lequel la transmission de renvoi est supportée par une tête polaire (6) soutenant les extrémités, situées du côté entraîné, des tubes interrupteurs (5), caractérisé par le fait que la butée (35) est également fixée sur la tête polaire (6) et possède des trous allongés (43) qui s'étendent suivant la direction d'action des ressorts (32) appliquant une force de contact, et qui permettent le passage d'organes de fixation (44), et que les ressorts (32) appliquant une force de contact sont disposés en série en étant approximativement coaxiaux entre les extrémités, tournées à l'opposé de la tige d'entraînement (11 ), des leviers à deux bras (21 ), la butée (35) étant située entre les ressorts (32) appliquant une force de contact.
4. Interrupteur à vide suivant la revendication 2, dans lequel les ressorts (50) appliquant une force de contact sont insérés dans la transmission de renvoi, caractérisé par le fait que les ressorts (50) appliquant la force de contact attaquent, par une de leurs extrémités, l'extrémité, tournée vers la tige d'entraînement (11), des leviers à deux bras (55) et que les extrémités, tournées à l'opposé de la tige d'entraînement (11 ), des leviers à deux bras (55) sont supportées par articulation, au niveau de paliers particuliers (58) de la butée (60).
5. Interrupteur à vide suivant l'une des revendications 3 ou 4, caractérisé par le fait que les leviers à deux bras (21 ; 55) sont coudés en des sens opposés par rapport aux centres de rotation situés sur les poussoirs d'entraînement (15).
6. Interrupteur à vide suivant la revendication 4, caractérisé par le fait que la droite reliant les centres de rotation (58, 20), situés sur la butée (60) et sur le poussoir d'entraînement (15), de chaque levier à deux bras (55), s'écarte seulement faiblement de la position perpendiculaire à la direction d'actionnement de chaque poussoir d'entraînement (15), lors de l'enclenchement et de la coupure.
EP83730125A 1983-01-12 1983-12-29 Interrupteur à vide à deux tubes interrupteurs en série par pôle Expired EP0115739B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833300979 DE3300979A1 (de) 1983-01-12 1983-01-12 Vakuumschalter mit zwei in reihe geschalteten schaltroehren je pol
DE3300979 1983-01-12

Publications (2)

Publication Number Publication Date
EP0115739A1 EP0115739A1 (fr) 1984-08-15
EP0115739B1 true EP0115739B1 (fr) 1986-03-12

Family

ID=6188225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83730125A Expired EP0115739B1 (fr) 1983-01-12 1983-12-29 Interrupteur à vide à deux tubes interrupteurs en série par pôle

Country Status (4)

Country Link
US (1) US4550234A (fr)
EP (1) EP0115739B1 (fr)
JP (1) JPS59138026A (fr)
DE (2) DE3300979A1 (fr)

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JP2610299B2 (ja) * 1988-05-16 1997-05-14 株式会社東芝 真空遮断器
DE3901713A1 (de) * 1989-01-21 1990-08-02 Sachsenwerk Ag Vakuumschalter
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DE4133092A1 (de) * 1991-09-30 1993-04-01 Siemens Ag Mehrpoliger vakuumschalter mit einer polantriebseinheit fuer jede vakuumschaltroehre
FR2682807B1 (fr) * 1991-10-17 1997-01-24 Merlin Gerin Disjoncteur electrique a deux cartouches a vide en serie.
JPH06215672A (ja) * 1993-01-20 1994-08-05 Toshiba Corp 真空遮断器
SE9500293D0 (sv) 1995-01-26 1995-01-26 Asea Brown Boveri Ställverk med manöverdon för brytare
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DE10355568B4 (de) * 2003-11-27 2011-04-07 Abb Ag Schaltgerät für den Mittel- und Hochspannungsbereich
FR2868197B1 (fr) * 2004-03-25 2006-05-19 Areva T & D Sa Dispositif de commande pour l'actionnement coordonne d'au moins deux appareils de commutation dont un est a coupure dans le vide
CN1305090C (zh) * 2004-04-06 2007-03-14 沈阳昊诚开关成套设备有限公司 纵向真空断路器传动机构
US7724489B2 (en) 2007-08-18 2010-05-25 Ema Electromecanica S.A. Circuit breaker with high speed mechanically-interlocked grounding switch
DE102013210136A1 (de) * 2013-05-30 2014-12-04 Siemens Aktiengesellschaft Elektrisches Schaltgerät
JP6053162B2 (ja) * 2013-06-18 2017-01-18 株式会社日立製作所 パッファシリンダの製造方法
JP6236240B2 (ja) * 2013-07-23 2017-11-22 株式会社東芝 ガス遮断器
CN105390333B (zh) * 2015-12-23 2020-04-07 黑龙江博瑞特高新技术开发有限公司 快速双电源切换开关及切换控制方法
PL3293748T3 (pl) 2016-09-09 2020-11-16 Microelettrica Scientifica S.P.A. Ulepszony stycznik do zastosowań przy przełączeniach wysokoprądowych
CN108565147A (zh) * 2018-07-05 2018-09-21 浙江信基电气股份有限公司 真空管式双电源自动切换装置
DE102018215507A1 (de) * 2018-09-12 2020-03-12 Siemens Aktiengesellschaft Leistungsschalter
DE102019204443A1 (de) 2019-03-29 2020-10-01 Siemens Aktiengesellschaft Stromunterbrechersystem
EP3886133B1 (fr) * 2020-03-24 2023-12-13 Siemens Aktiengesellschaft Agencement d'interconnexion pour un dispositif de commutation
EP3896711B1 (fr) * 2020-04-14 2023-07-26 Siemens Aktiengesellschaft Protection diélectrique pour un dispositif de commutation
DE102020126236A1 (de) * 2020-05-05 2021-11-11 Siemens Aktiengesellschaft Kinematische Verbindungsanordnung für eine Schaltvorrichtung

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Also Published As

Publication number Publication date
JPS6410891B2 (fr) 1989-02-22
DE3362568D1 (en) 1986-04-17
US4550234A (en) 1985-10-29
EP0115739A1 (fr) 1984-08-15
DE3300979A1 (de) 1984-07-12
JPS59138026A (ja) 1984-08-08

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