EP2789000A1 - Appareil de commutation, en particulier interrupteur sectionneur, pour installations de commutation moyenne tension - Google Patents

Appareil de commutation, en particulier interrupteur sectionneur, pour installations de commutation moyenne tension

Info

Publication number
EP2789000A1
EP2789000A1 EP13700673.0A EP13700673A EP2789000A1 EP 2789000 A1 EP2789000 A1 EP 2789000A1 EP 13700673 A EP13700673 A EP 13700673A EP 2789000 A1 EP2789000 A1 EP 2789000A1
Authority
EP
European Patent Office
Prior art keywords
contact
rotatable
switching device
moving contact
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.)
Granted
Application number
EP13700673.0A
Other languages
German (de)
English (en)
Other versions
EP2789000B1 (fr
Inventor
Stefan Hohmann
Daniel Pesch
Stefan Wolf
Rene Zlydnik
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 EP2789000A1 publication Critical patent/EP2789000A1/fr
Application granted granted Critical
Publication of EP2789000B1 publication Critical patent/EP2789000B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • 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
    • H01H33/128—Load break switches comprising a separate circuit breaker being operated by a separate mechanism interlocked with the sectionalising mechanism
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003—Earthing switches
    • 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

  • Switchgear in particular switch disconnector, for medium-voltage switchgear
  • the invention relates to a switching device, in particular a load-break switch, for medium-voltage switchgear.
  • Such load break switches for medium-voltage switching systems for example, from DE 10 2004 006 476 AI be ⁇ known and comprises a main contact system and a shunt branch, in which the shunt path, a clear contact ⁇ arrangement for extinguishing an arc, as well as isolating contact arrangement are provided for providing a dielectric strength ,
  • Object of the present invention is to provide a switching device of the type mentioned, which is inexpensive to produce in a compact design.
  • a switching device for medium-voltage switchgear with a main contact system, formed of a first fixed contact and a second fixed contact, which are diametrically opposed, and one by means of a centrally between the first fixed contact and the second fixed contact arranged rotary support rotatable moving contact to form a main current path in a first position of the moving contact and forming a separation path in a second position of the rotatable moving contact and a secondary benströmen, formed from the first fixed contact, the ⁇ th fixed contact, a quenching contact system and a first sliding contact and a second sliding contact for forming a conductive connection with the rotatable moving contact in a rotational angle range of the rotatable moving contact located between the first position and the second position, such that during insertion n a rotary movement in the navba Ren moving contact a commutation of an alternating current flowing through the switching device from the main current path is made possible
  • Such a switching device on the one hand has a compact design, because by the diametrical arrangement of the first fixed contact and second fixed contact to each other and the ⁇ arranged there between rotatable moving contact an arrangement of main current path and Maustrompfad in a small space next to each other by the commutation of the rotational movement is made possible by the switching device from the main current path to the secondary current path.
  • a switching device such as a cost ⁇ cheap construction, because by the auxiliary current path being ⁇ arranged quenching contact system both this and the first and second sliding contacts as well as further connecting means to the first and the second fixed contact from cultivatedgünsti ⁇ gem material, such as steel or stainless steel or aluminum or the like, can be produced because of the Crowstrompfad only a short time in a switching operation is performed until after arc quenching in Lösch- contact system a transfer to the disconnected position of the circuit breaker happens, so that the requirements for the material properties of the Maustrompfades lower are considered to be the requirements for the material properties of the main flow path.
  • the extinguishing contact system comprises a vacuum interrupter with a closable by ⁇ means of a contact pressure spring contact system.
  • the contact system of the vacuum interrupter is held by the contact pressure spring in its closed state, as long as the means of the rotatable moving contact for interrupting the extinguishing contact system does not attack it, so that the arrangement of the extinguishing contact system in the bypass flow path only a small spring force is necessary to ⁇ special for the contact pressure spring because no run short ⁇ circuit current on the bypass flow path and thus for example, no bouncing occurs which significantly higher spring forces benöti ⁇ gen would to the contact system To keep vacuum interrupter in ge ⁇ closed state.
  • the means comprise a rocker for actuating a cam which is coupled to a moving contact connecting bolt of the vacuum interrupter by means of a guide element.
  • the rotatable moving contact is designed to be rotatable by 360 °. This ensures in an advantageous manner that when turning only in one direction, a switch-on of the switching device by initiating the rotational movement in the same direction and transferring the rotatable moving contact from the second position to the first position of the switching without the participation of Volunteerstrompfades and in particular without involvement the vacuum interrupter of the
  • FIG. 1 shows an exemplary embodiment of a switching device according to the invention in a first position
  • Figures 2 to 6 the switching device of Figure 1 in various positions during the execution NEN ei ⁇ nes switching operation and forming an isolating distance;
  • FIG. 7 shows a three-dimensional view of an exemplary embodiment of a three-phase
  • FIG. 8 the switching device according to the exemplary embodiment of FIG. 1 in conjunction with a
  • FIG. 9 shows the switching device of FIG. 8 with the earthing switch in a second position.
  • Figure 1 shows a switching device in the form of a circuit breaker ⁇ switch 1 for use in medium-voltage switchgear, which are not shown in detail figurative, the load-disconnect switch 1 is connected to a first fixed contact 2 with a busbar connection of the switchgear and with ei ⁇ A second fixed contact 3 with a cable outlet of the medium-voltage switchgear is connectable.
  • the first Festkon ⁇ clock 2 and the second fixed contact 3 formed of a main contact system and a main current path of the circuit breaker 1 together with egg nem rotating moving contact.
  • the Bewegkon ⁇ clock 4 is designed as a pair of knives and includes a first Knife pair end 5 and a second pair of knife ends 6 and a figuratively not shown further conductive connection between ⁇ first knife pair end 5 and second pair of knife 6 and is located in the figure 1 in a first position in which the first knife pair end 5 with the first fixed contact 2 a conductive Connection forms and the second knife ⁇ pair 6 forms a conductive Ver ⁇ bond with the second fixed contact 3, so that a current flow through the load circuit breaker 1 and via the main current path is possible.
  • the rotating moving contact 4 is in this case be ⁇ consolidates to a rotating supporter 7, in which rotation supporters 7 is a drive movement of a drive figurative also not shown for rotating the rotary Stützers 7, and thus allows rotation of the rotatable moving contact.
  • an erase contact system 9 is electrically connected by means of a conductive connection 8, which extinguishing contact system 9 is formed by a vacuum interrupter 10 with moving contact 11 and fixed ⁇ contact 12, wherein the extinguishing contact system 9 in the figure 1 is in the closed state by a contact pressure spring 13 on a BewegWallet- connecting bolt 14 exerts a compressive force for holding in the closed position of the extinguishing contact system 9.
  • the Beweg ⁇ contact 11 of the extinguishing contact system 9 is in turn conductively connected to a first sliding contact 15.
  • a second sliding contact 16 is by means of another conductive Ver ⁇ binding element 17 with the second fixed contact 3 is electrically conductively connected, so that after initiating a rotational movement in the rotary supporters 7 and rotation of the rotatable moving contact 4 in a contact position in which the first pair of knives end 5 or the second knife pair of end 6 of rotatable B e ⁇ wegternes 4 with the first sliding contact 15 and the second sliding contact 16 is in conductive connection, a Costrompfad on the first fixed contact 2, the conductive connection 8, the closed erase contact system 9, the first sliding contact 15, the rotatable moving contact 4, the second Sliding contact 16, the conductive connecting member 17 and the second fixed contact 3 is formed, as with reference to Figures 2 to 6 explained in more detail below.
  • a rocker 18 which has a cam track 19, through which a cam 20 can be actuated during a rotation ⁇ movement of the rotatable moving contact 4, which cam 20 rotatably mounted at a pivot point 21 and by means of a guide pin 22 in ih ⁇ movement is guided, wherein a guide member 23 is provided ⁇ see, by which the cam 20 moves the Bewegkon ⁇ clock terminal pin 14 of the extinguishing contact system 9 and the extinguishing contact system 9 opens.
  • the switch disconnector 1 is disposed in a housing 24 which is filled with a Iso ⁇ liergas or an insulating liquid and, on the medium-voltage switchgear can be attached and mounted with ⁇ means of fasteners, one of which is exemplary only designated 25th
  • ⁇ means of fasteners one of which is exemplary only designated 25th
  • the function of the circuit breaker 1 of Figure 1 will be explained in more detail below with reference to Figures 1 to 6.
  • the switch-disconnector 1 is in its first position with trained Hauptstrompfad on the first fixed contact 2, the rotatable moving contact 4 and the second fixed contact 3.
  • a switch-on of the switch-disconnector 1 is done by further initiation of a rotary movement of the switch-disconnector in the disconnected position 1, as shown in Figure 6 Darge ⁇ , and further rotation of the rotatable moving contact 4 in the same direction until finally the second knife pair end 6 with the first fixed contact 2 and the first pair of knives end 5 of the 10th to the second fixed contact 3 comes in conductive connection, wherein a Einschaltschreibbogen can be ignited before already, which is not problematic in an arrangement of the circuit breaker 1 in a with an insulating filled j ⁇ th container, and in particular allows the vacuum interrupter of the Erase contact system 9 cost ⁇ low perform, since this is not involved in the switch-on and thus no special requirements for the switch-on of the vacuum interrupter 10 must be made.
  • Figure 7 shows a three-phase switching device 1, wherein each Pha ⁇ se 26, 27 or 28 is formed according to the embodiment of Figures 1 to 6, of which the housing 24 are visible and wherein the individual phases 26, 27 and 28 via connecting elements 29 are connected to each other, so that a simultaneous actuation of all phases by initiating a Rotary movement of a drive, not shown in the figure, is made possible in the rotary support 7.
  • FIG. 8 shows the switch disconnector 1 in its second STEL lung-formed separating section as described with reference to the Fi ⁇ gur 6 already explained, wherein a ground terminal 30 is provided in Figure 8 at two ⁇ th fixed contact 3, which in the Figure 8 is lei ⁇ tend connected to a Erdungsbewegtitle 31, which is rotatably mounted GE at a pivot point 32 and connected to ground potential.
  • the switching ⁇ positions of switch disconnector 1 and earthing switch are variably combined with each other, so, for example, even in an error within the container closed main bus path and thus switched busbar the entire current path are grounded and thereby effectively a pressure build-up in an arc in the container can be prevented.

Landscapes

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

Abstract

Afin de réaliser un appareil de commutation, en particulier un interrupteur sectionneur, pour des installations de commutation moyenne tension, dont la construction soit d'un coût avantageux et dont l'architecture soit compacte, la présente invention propose un appareil de commutation, en particulier un interrupteur sectionneur (1), pour des installations de commutation moyenne tension, comportant un système de contact principal réalisé à partir d'un premier contact fixe (2) et d'un deuxième contact fixe (3) qui sont diamétralement opposés, et d'un contact mobile (4) rotatif grâce à un support rotatif (7) agencé centralement entre le premier contact fixe (2) et le deuxième contact fixe (3), en formant un chemin de courant principal dans une première position du contact mobile rotatif (4) et une distance de sectionnement dans une deuxième position de contact mobile rotatif (4) ainsi qu'un chemin de courant secondaire formé du premier contact fixe (2), du deuxième contact fixe (3), d'un système de contact d'extinction (9) ainsi que d'un premier contact frottant (15) et d'un deuxième contact frottant (16) pour former une liaison conductrice avec le contact mobile rotatif (4) dans une plage d'angle de rotation du contact mobile rotatif (4) située entre la première position et la deuxième position, de manière telle que, lorsque le contact mobile rotatif (4) est mis en rotation, il est possible de commuter du chemin de courant principal sur le chemin de courant secondaire un courant alternatif passant par l'appareil de commutation. Le contact mobile rotatif (4) comporte des moyens (18, 19) pour couper le système de contact d'extinction (20) et il est possible de former la distance de sectionnement lorsque l'arc électrique est éteint et qu'un autre mouvement de rotation est initié.
EP13700673.0A 2012-01-24 2013-01-11 Appareil de commutation, en particulier interrupteur sectionneur, pour installations de commutation moyenne tension Active EP2789000B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012200962.0A DE102012200962B4 (de) 2012-01-24 2012-01-24 Schaltgerät, insbesondere Lasttrennschalter, für Mittelspannungs-Schaltanlagen
PCT/EP2013/050491 WO2013110511A1 (fr) 2012-01-24 2013-01-11 Appareil de commutation, en particulier interrupteur sectionneur, pour installations de commutation moyenne tension

Publications (2)

Publication Number Publication Date
EP2789000A1 true EP2789000A1 (fr) 2014-10-15
EP2789000B1 EP2789000B1 (fr) 2018-01-03

Family

ID=47594688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13700673.0A Active EP2789000B1 (fr) 2012-01-24 2013-01-11 Appareil de commutation, en particulier interrupteur sectionneur, pour installations de commutation moyenne tension

Country Status (5)

Country Link
EP (1) EP2789000B1 (fr)
CN (1) CN104054150B (fr)
DE (1) DE102012200962B4 (fr)
NO (1) NO2922890T3 (fr)
WO (1) WO2013110511A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104319159B (zh) * 2014-11-19 2016-03-23 电光防爆科技股份有限公司 一种三相隔离开关
FR3034251B1 (fr) 2015-03-27 2017-04-28 Schneider Electric Ind Sas Interrupteur d'un reseau triphase
CN108320931B (zh) * 2018-02-01 2023-06-27 雷顿电气科技有限公司 一种自动转换开关电器
WO2020200864A1 (fr) * 2019-03-29 2020-10-08 Siemens Aktiengesellschaft Commutateur à trois positions optimisé
ES1229781Y (es) * 2019-04-26 2019-08-12 Ormazabal Y Cia S L U Interruptor de corte en gas
EP3843117B1 (fr) 2019-12-24 2023-11-15 Elna Kabel d.o.o. Interrupteur coupe-charge sans gaz sf6 doté d'un interrupteur de circuit à vide pour systèmes de commutation moyenne tension
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
FR2719154B1 (fr) * 1994-04-25 1996-06-07 Merlin Gerin Interrupteur électrique moyenne tension.
FR2722912B1 (fr) * 1994-07-20 1996-09-13 Schneider Electric Sa Interrupteurs electriques moyenne tension
DE102004006476B4 (de) 2004-02-04 2006-02-09 Siemens Ag Lasttrennschalter
DE202010009448U1 (de) * 2010-06-23 2010-09-09 Ipt International Power & Technology Gmbh Hochspannungsschaltvorrichtung
CN101964271B (zh) * 2010-09-28 2012-08-15 丹东供电设备厂 高压切换转移电流装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013110511A1 *

Also Published As

Publication number Publication date
EP2789000B1 (fr) 2018-01-03
WO2013110511A1 (fr) 2013-08-01
DE102012200962B4 (de) 2018-07-26
NO2922890T3 (fr) 2018-01-27
DE102012200962A1 (de) 2013-07-25
CN104054150B (zh) 2017-05-31
CN104054150A (zh) 2014-09-17

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