EP2689446B1 - Interrupteur - Google Patents

Interrupteur Download PDF

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Publication number
EP2689446B1
EP2689446B1 EP12716369.9A EP12716369A EP2689446B1 EP 2689446 B1 EP2689446 B1 EP 2689446B1 EP 12716369 A EP12716369 A EP 12716369A EP 2689446 B1 EP2689446 B1 EP 2689446B1
Authority
EP
European Patent Office
Prior art keywords
contact
switching device
contact system
quenching
fixed contact
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.)
Active
Application number
EP12716369.9A
Other languages
German (de)
English (en)
Other versions
EP2689446A1 (fr
Inventor
Stefan Wolf
Rene Zlydnik
Marco Adelmann
Kristian Ermeler
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 EP2689446A1 publication Critical patent/EP2689446A1/fr
Application granted granted Critical
Publication of EP2689446B1 publication Critical patent/EP2689446B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • H01H33/122—Load break switches both breaker and sectionaliser being enclosed, e.g. in SF6-filled container
    • 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
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • H01H33/125—Load break switches comprising a separate circuit breaker
    • H01H33/127—Load break switches comprising a separate circuit breaker movable with a sectionalising contact arm and operated by such movement
    • 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
    • H01H33/6661—Combination with other type of switch, e.g. for load break switches
    • 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
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric

Definitions

  • the invention relates to a switching device, in particular a switch disconnector, for medium voltage switchgear with a quenching contact system for extinguishing an arc at a turn-off of the switching device and a main contact system connected in series to the quenching system for forming a dielectric separation gap in an open state of the main contact system and extinguished arc, the Main contact system having a first fixed contact and a second fixed contact, which are diametrically opposed, as well as a rotatable by means of a centrally disposed between the first and second fixed contact rotary support moving contact with integrated therein extinguishing contact system.
  • an extinguishing contact system for extinguishing an arc is provided in the form of a vacuum interrupter for a load disconnector, which extinguishing contact system connected in series a main contact system for forming a dielectric separation gap in an open state of the main contact system with extinguished arc in the form of a pivotable contact of a circuit breaker, which is arranged in a container filled with an insulating gas, provided, by means of a coupled to the pivotal contact of the circuit breaker cam drive movement in a moving contact of the vacuum interrupter of the extinguishing contact system can be introduced, so that at a switch-off of the switching device on the Cam the extinguishing contact system is opened and an arc is extinguished before the main contact system in its open state to form a dielectric Separating section is transferred.
  • a switching device of the type mentioned is from the US 2 469 203 A known.
  • Object of the present invention is to provide a switching device of the type mentioned, which has a compact design.
  • the switching device is in other words in the form of a load-disconnect rotary switch formed with diametrically opposed first and second fixed contact and a rotatable by means of a centrally disposed between the first and second fixed contact drive shaft moving contact, which for selectively forming a conductive connection between the first and the second fixed contact or for interrupting the connection between the first and the second fixed contact, and has by the integrated in the rotatable moving contact extinguishing contact system of a compact construction, because the extinguishing contact system is part of the moving contact of the main contact system, so that the space requirement is significantly reduced compared to separate, spatially sequentially arranged components.
  • Such trained load-disconnect rotary switch can be arranged in a filled with an insulating gas, such as N2 or the like, container of a medium-voltage switchgear.
  • an insulating gas such as N2 or the like, container of a medium-voltage switchgear.
  • the main contact system has two switch positions and two off positions, which are each offset by 90 ° to each other, so that between the various switch positions on different curved paths designs different controls the BewegCount connecting pin of the extinguishing contact system are possible to perform, for example, a switch-on by differently configured curved path differently than a switch-off of the switching device.
  • the extinguishing contact system is formed by a vacuum interrupter, wherein a moving contact terminal bolt of the vacuum interrupter has a guide element, by means of which a cam movement of the switching device, a drive movement for opening or closing the extinguishing contact system can be introduced.
  • the guide element arranged in the moving contact connecting bolt of the vacuum interrupter in cooperation with the curved path of the switching device, which may be provided, for example, on a pole housing of one pole of the switching device, initiates a drive movement as a forced movement into the moving contact connecting bolt in a simple manner that when executing a rotary motion of the moving contact of the main contact system, the extinguishing contact system in the form of the vacuum interrupter can be made in a simple manner by designing the curved path according to the requirements of the switching device for opening or closing the extinguishing contact system.
  • the first fixed contact and the second fixed contact on a circumferential extent with respect to a rotational movement of the moving contact of the main contact system such that between the moving contact of the main contact system and the first and second fixed contact of the switching device during a rotary movement of a switch-off a conductive Connection is formed during the initiation of the drive movement by guide member and cam track in the BewegmasanInstitut the vacuum interrupter for opening the extinguishing contact system and extinguishing the arc.
  • Such a circumferential extent of the first and second fixed contact of the switching device allows in other words that when initiating a rotational movement for a switch-off of the switching device initially by means of the guide member and the cam track, a drive movement is introduced into the moving contact terminal pin of the extinguishing contact system in the form of the vacuum interrupter, so that the extinguishing contact system is first opened by means of the forced movement of the moving contact connecting bolt of the vacuum interrupter and an arc is extinguished, before the rotary movement is carried out further the moving contact of the main contact system of the moving contact of the main contact system interrupts the conductive connection with the first fixed contact and the second fixed contact of the switching device and forms a dielectric separation path, which is formed by the distance formed in the open state between the moving contact of the main contact system and the first and second fixed contact and the open contact system of the vacuum interrupter is formed.
  • the circumferential extent of the first and second fixed contact preferably about 0 ° to 30 °, wherein the curved path is provided for initiating the forced movement in the BewegCountan gleichbolzen the extinguishing contact system in the range of this rotation from 0 ° to 30 °, so that first the arc is extinguished in the extinguishing contact system and then the dielectric separation distance is reached upon further rotation.
  • the curved path for initiating the drive movement in the moving contact connecting bolt for closing the extinguishing contact system during the rotational movement of a switching of the switching device is designed such that a Einschaltlichtbogen is ignitable only in the main contact system.
  • FIG. 1 shows a switching device 1 in the form of a load-disconnect rotary switch with a first fixed contact 2, for example, provided for connection to a busbar connection of a switchgear not shown figuratively and the first fixed contact 2 diametrically opposite second fixed contact 3, which, for example, to connect to a outgoing terminal the switchgear is provided.
  • a switching device 1 in the form of a load-disconnect rotary switch with a first fixed contact 2, for example, provided for connection to a busbar connection of a switchgear not shown figuratively and the first fixed contact 2 diametrically opposite second fixed contact 3, which, for example, to connect to a outgoing terminal the switchgear is provided.
  • a rotatable moving contact 4 is coupled by means of a centrally disposed between the first fixed contact 2 and the second fixed contact 3 rotary support 5 with a drive shaft not shown figuratively on coupling sides 6 for introducing a rotational movement in the rotary support 5 and execution of a rotary movement of the rotary BewegCountes 4 and provided for optionally forming a conductive connection between the first fixed contact 2 and the second fixed contact 3, as in FIG. 1 illustrated, or for interrupting the conductive connection between the first fixed contact 2 and the second fixed contact 3, as with reference to the FIGS. 2 to 5 explained in more detail below.
  • an extinguishing contact system in the form of a vacuum interrupter 7
  • the fixed contact terminal pin 8 is connected to the moving contact 4 directly conductive
  • the moving contact terminal pin 9 is also connected directly to the rotating movable contact 4.
  • the moving contact terminal pin 9 of the vacuum interrupter 7 is mechanically coupled to a switching bridge 10 which is provided for actuating the BewegCount connecting pin 9 of the vacuum interrupter 7 and for initiating a drive movement in the moving contact terminal pin 9 for opening or closing the extinguishing contact system of the vacuum interrupter 7 ,
  • the switching bridge 10 has for this purpose a guide element 11 in the form of, for example, a roller or a projection, which guide element 11 engages in a cam track 12 of a pole housing 13, so that upon initiation of a rotational movement in the rotatable moving contact 4 via the guide member 11, a forced movement into the moving contact
  • a guide sleeve 14 is provided for the axial guidance of the moving contact connecting bolt 9 and for receiving radial loads of the vacuum interrupter 7.
  • the first fixed contact 2 and the second fixed contact 3 have a circumferential extent, by which it is ensured that during a rotary movement of the moving contact 4, a conductive connection between the first fixed contact 2 and the second fixed contact 3 is maintained during a switch-off until via the forced movement of the moving contact connecting pin 9, initiated by the cam track 12 and the guide element 11 of the switching bridge 10, the extinguishing contact system opened and an arc in the vacuum interrupter 7 is deleted.
  • FIG. 2 is the switching device 1 of FIG. 1 shown in a closed position in which the rotatable moving contact 4 is in a 0 ° position in a first closed position in contact with the first fixed contact 2 and the second fixed contact 3 and the extinguishing contact system of the vacuum interrupter 7 with the ErschbewegWallet 17 and the erase fixed contact 18th is also in its closed position.
  • the extinguishing contact system of the vacuum interrupter 7 for opening the extinguishing contact system and the separation of extinguishing contact 17 and extinguishing contact 18 causes, whereby an arc in the vacuum interrupter 7 burns and is extinguished in a zero crossing, and then the further rotation with the arc extinguished and the extinguishing contact system of the vacuum interrupter 7 to Separation of the main contact system leads by the rotatable moving contact 4 of the main contact system interrupts the conductive connection with the first fixed contact 2 and the second fixed contact 3 and finally the in the FIG. 3 illustrated first off position occupies, which meets the requirements of a dielectric separation path to the load-break switch. From the first off position of the FIG.
  • the second closed position of the switching device 1 of FIG. 4 is achieved, in which the rotatable moving contact 4 in a rotated position by 180 ° in comparison to the FIG. 2 located.
  • FIG. 5 shows the switching device 1 in a second switch-off position, wherein a switch-off operation corresponding to that with reference to the FIGS. 2 and 3 already described shutdown was performed.
  • the second switch-off position is thus the rotatable moving contact 4 in a 180 ° relative to the FIG. 3 rotated position or in a 270 ° relative to the FIG. 2 rotated position.
  • FIG. 6 shows a three-pole version of a load-disconnect rotary switch with three single poles according to the in FIGS. 1 to 5 described switching device 1, which are coupled to each other via coupling elements 19, so that via the coupling elements 19 and the connection of the respective outer rotary support 5 on coupling sides 6 to a drive shaft not shown figuratively a synchronous switching operation for all three phases is executable.
  • FIG. 7 shows a combination of the switching device 1 with a separate earthing switch 20, which has a pivotal contact 21, with which via a separate earth drive shaft 22 a as in FIG. 8 shown grounding position can be taken.
  • a switching device 1 in which the vacuum interrupter 7 is designed as a non-switch-on vacuum interrupter, ie the vacuum interrupter 7 is already closed during a switch-on of the switching device 1, before a Einschaltlichtbogen is ignited on the main contact system.
  • a vacuum interrupter which does not turn on and thus can not be switched to a load current or a short circuit, is particularly inexpensive and therefore advantageous.
  • the switching device 1 is preferably provided for arrangement in a filled with an insulating gas, such as N2, gas space of a medium voltage switchgear.

Landscapes

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

Claims (4)

  1. Appareil (1) de coupure, notamment sectionneur en charge, pour des installations de distribution en moyenne tension, comprenant un système de contact d'extinction pour l'extinction d'un arc électrique, lors d'une opération de déconnexion de l'appareil (1) de coupure, et un système de contact principal monté en série avec le système de contact d'extinction, pour la constitution d'une section de séparation électrique dans un état ouvert du système de contact principal et d'arc électrique éteint, le système de contact principal ayant un premier contact (2) fixe et un deuxième contact (3) fixe, qui sont opposés diamétralement, ainsi qu'un contact (4) mobile pouvant tourner au moyen d'un support (5) de rotation disposé au milieu entre le premier contact (2) fixe et le deuxième contact (3) fixe et ayant le système de contact d'extinction qui y est intégré,
    caractérisé en ce que
    le contact (4) mobile du système de contact principal est constitué tournant sur 360°.
  2. Appareil (1) de coupure suivant la revendication 1,
    caractérisé en ce que
    le système de contact d'extinction est formé par un tube (7) de commutation à vide, dans lequel un axe (9) de connexion de contact mobile du tube (7) de commutation à vide a un élément (11) de guidage, par lequel, au moyen d'un chemin (12) incurvé de l'appareil (1) de coupure, un mouvement d'entraînement pour ouvrir ou fermer le système de contact d'extinction peut être amorcé.
  3. Appareil (1) de coupure suivant la revendication 2,
    caractérisé en ce que
    le premier contact (2) fixe et le deuxième contact (3) fixe ont une étendue périphérique, rapportée à un mouvement de rotation du contact (4) mobile du système de contact principal, de manière à former, pendant un mouvement de rotation d'une opération de déconnexion, une liaison conductrice pendant l'amorçage du mouvement d'entraînement par l'élément (11) de guidage et le chemin (12) incurvé dans l'axe (9) de connexion du contact mobile du tube (7) de commutation à vide, pour l'ouverture du système de contact d'extinction et l'extinction de l'arc électrique.
  4. Appareil (1) de coupure suivant l'une des revendications précédentes,
    caractérisé en ce que
    le chemin (12) incurvé est constitué, pour l'amorçage du mouvement d'entraînement dans l'axe (9) de connexion du contact mobile, pour la fermeture du système de contact dans un mouvement de rotation d'une opération de connexion de l'appareil (1) de coupure, de manière à ce qu'un arc électrique de connexion ne puisse être amorcé que dans le système de contact principal.
EP12716369.9A 2011-04-29 2012-04-18 Interrupteur Active EP2689446B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011017815A DE102011017815B3 (de) 2011-04-29 2011-04-29 Schaltgerät
PCT/EP2012/057067 WO2012146517A1 (fr) 2011-04-29 2012-04-18 Interrupteur

Publications (2)

Publication Number Publication Date
EP2689446A1 EP2689446A1 (fr) 2014-01-29
EP2689446B1 true EP2689446B1 (fr) 2017-05-31

Family

ID=46001215

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12716369.9A Active EP2689446B1 (fr) 2011-04-29 2012-04-18 Interrupteur

Country Status (4)

Country Link
EP (1) EP2689446B1 (fr)
CN (1) CN103503105B (fr)
DE (1) DE102011017815B3 (fr)
WO (1) WO2012146517A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011087630B4 (de) * 2011-12-02 2016-11-03 Siemens Aktiengesellschaft Schaltgerät
CN104253001B (zh) * 2013-06-25 2016-06-08 施耐德电器工业公司 微型断路器
CN105723489B (zh) * 2013-08-05 2019-06-04 英诺锂资产公司 具有阻断半导体的换向开关
US10014139B2 (en) * 2015-09-02 2018-07-03 General Electric Company Over-current protection assembly
CN107845511A (zh) * 2017-10-10 2018-03-27 上海良信电器股份有限公司 旋转式电气开关的动触头绝缘片
FR3121267A1 (fr) 2021-03-24 2022-09-30 Schneider Electric Industries Sas Système de coupure d’un appareil électrique

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2469203A (en) * 1945-12-04 1949-05-03 Gen Electric Electric switch
DE2934776C2 (de) * 1979-08-28 1982-05-06 Siemens AG, 1000 Berlin und 8000 München Mittelspannungslasttrennschalter.
DE3611270C2 (de) * 1986-04-04 1995-08-17 Sachsenwerk Ag Elektrische Schalteinrichtung für hohe Schaltspannungen
FR2735899B1 (fr) * 1995-06-22 1997-08-01 Gec Alsthom T & D Sa Interrupteur auto-sectionneur
DE202010009448U1 (de) * 2010-06-23 2010-09-09 Ipt International Power & Technology Gmbh Hochspannungsschaltvorrichtung

Also Published As

Publication number Publication date
DE102011017815B3 (de) 2012-10-11
EP2689446A1 (fr) 2014-01-29
CN103503105B (zh) 2015-12-23
WO2012146517A1 (fr) 2012-11-01
CN103503105A (zh) 2014-01-08

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