EP3616227B1 - Élément de raccordement pour un contact mobile d'une ampoule à vide et appareillage à isolation gazeuse doté d'un élément de raccordement pour un contact mobile d'une ampoule à vide - Google Patents

Élément de raccordement pour un contact mobile d'une ampoule à vide et appareillage à isolation gazeuse doté d'un élément de raccordement pour un contact mobile d'une ampoule à vide Download PDF

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Publication number
EP3616227B1
EP3616227B1 EP18716951.1A EP18716951A EP3616227B1 EP 3616227 B1 EP3616227 B1 EP 3616227B1 EP 18716951 A EP18716951 A EP 18716951A EP 3616227 B1 EP3616227 B1 EP 3616227B1
Authority
EP
European Patent Office
Prior art keywords
connection element
flexible
connection
vacuum interrupter
outer body
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
EP18716951.1A
Other languages
German (de)
English (en)
Other versions
EP3616227A1 (fr
Inventor
Marko-Boris Begovac
Patrick Halbach
Michael Leitner
Henning Milnikel
Michael Pohnke
Volker Strehlow
Roland STÜTZER
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 EP3616227A1 publication Critical patent/EP3616227A1/fr
Application granted granted Critical
Publication of EP3616227B1 publication Critical patent/EP3616227B1/fr
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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
    • H01H33/6606—Terminal arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5822—Flexible connections between movable contact and terminal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/62—Heating or cooling of contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5822—Flexible connections between movable contact and terminal
    • H01H2001/5827—Laminated connections, i.e. the flexible conductor is composed of a plurality of thin flexible conducting layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts
    • H01H2009/526—Cooling of switch parts of the high voltage 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
    • H01H33/60—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
    • H01H33/6606—Terminal arrangements
    • H01H2033/6613—Cooling arrangements directly associated with the terminal arrangements

Definitions

  • the invention relates to a connection element for a moving contact of a vacuum interrupter and a gas-insulated switchgear with such a connection element.
  • Switchgear systems are known in the prior art that have vacuum interrupters for switching short-circuit currents. These vacuum interrupters and their switching contacts are designed to be able to switch off the high currents in the event of short-circuit currents. These short-circuit currents are in the high kiloampere range (>>1 kA). In principle, the geometry of the switching contacts required for this has a comparatively high contact resistance when the vacuum interrupter is closed. During operation of the switchgear, i.e.
  • this high contact resistance leads to a high power loss occurring, especially in the area of the vacuum interrupter, due to the contact resistance when a rated current is flowing, which in the area of the vacuum interrupter leads to increased temperatures and thus leads to increased temperatures in the entire system.
  • predetermined temperature limits must be observed, ie not exceeded, which means that additional measures for cooling the switchgear, in particular the vacuum interrupters and their adjacent components, are required in many cases.
  • the EP2161729A2 discloses a vacuum switch with a vacuum interrupter, wherein the moving contact of the vacuum interrupter is accommodated in a holder and the holder is movably connected to an electrical connection block with a flexible conductor strap.
  • WO2006040243A1 discloses a clamping device for vacuum interrupters, the clamping device having heat sinks and the clamping device being connected to an electrical connection block via flexible conductor straps.
  • the object of the invention is now to remedy the disadvantages of the prior art.
  • connection element for a moving contact of a vacuum interrupter with a connection body and a flexible current-conducting element
  • the connection element having at least one outer body and the connection body having a flexible, heat-conducting element Connector is connected to the at least one outer body, wherein the outer body partially or completely surrounds the flexible power line element. This not only enables better heat dissipation, but also mechanically protects the flexible current-carrying element.
  • the heat dissipation is achieved through the use of the outer body, which is at least thermally conductively connected to the connection body. This additional heat dissipation, preferably in the area of the connection between the connection body and the flexible current-conducting element, allows for a more compact design.
  • connection body has one or more heat sinks.
  • the heat sink or heat sinks allow further increased heat dissipation from the switching system, in particular away from the vacuum switch and its electrical connection points.
  • the cooling body or cooling bodies have cooling ribs, which preferably run parallel to the longitudinal axis of a receiving opening for the moving contact of a vacuum interrupter of the connection body.
  • the receiving opening can be provided with a fastening mechanism, so that the moving contact can be firmly connected to the connection body.
  • the moving contact of the vacuum interrupter is clamped in the receiving opening.
  • the connection body is particularly preferably designed in two parts or is slotted.
  • cooling fins on the or the heat sinks in the assembled state parallel to the force of gravity, i.e. vertically, and thus optimal convection along the heat sink is achieved.
  • the heat sink or heat sinks are not, or are partially or completely, surrounded by the outer body.
  • the heat sink or heat sinks are not, or are partially or completely, surrounded by the outer body.
  • either improved convection in the area of the heatsinks is achieved if they are not enclosed, or a compromise between absorption of thermal radiation convection at the heatsinks with partially enclosed heatsinks is achieved, or improved absorption of thermal radiation is achieved with fully enclosed heatsinks .
  • the heat sink or heat sinks are painted in such a way that the heat sink or heat sinks have an increased surface area compared to the purely geometric shape and/or increased heat radiation compared to an unpainted surface.
  • the coating increases the surface area by at least a factor of 5, preferably by a factor of at least 10, particularly preferably by a factor of at least 100.
  • the outer body is formed by a cage made of heat-conducting material.
  • a cage made of heat-conducting material.
  • the flexible, heat-conducting connecting piece is designed to be electrically insulating.
  • the thermally conductive connecting piece is designed to be conductive and the flexible, thermally conductive connecting piece can be conductively connected to a main current path of the connection element via the outer body.
  • the outer body is on the one hand with the connector body electrically conductive and thermally conductive and on the other hand electrically conductively and thermally conductively connected to the main current path, so that the rated current can be divided and heating at the contact points can be reduced. At the same time, improved heat dissipation via the outer body is possible.
  • the outer body can be connected to a main current path of the connection element via a further current-conducting, flexible, heat-conducting connecting piece.
  • the flexible, heat-conducting connecting piece and/or the flexible current-conducting element has fanning out on the sides, which increase the surface area and contribute to, or cause, increased heat dissipation.
  • Another embodiment relates to a gas-insulated switchgear with at least one vacuum interrupter, wherein a moving contact of the vacuum interrupter is contacted with a connection element according to one or more of the above statements.
  • the insulating gas has one or more of the following gases: SF6 and/or one or more fluoroketones and/or one or more nitriles, in particular fluorinated nitriles and/or nitrogen and/or carbon dioxide and/or oxygen and/or dry air and/or one or more olefins and/or one or more oxiranes, in particular fluorinated oxiranes.
  • gases SF6 and/or one or more fluoroketones and/or one or more nitriles, in particular fluorinated nitriles and/or nitrogen and/or carbon dioxide and/or oxygen and/or dry air and/or one or more olefins and/or one or more oxiranes, in particular fluorinated oxiranes.
  • the thermally conductive connecting piece is designed to be conductive and the flexible, thermally conductive connecting piece can be conductively connected to a main current path of the connection element via the outer body.
  • the outer body is on the one hand with the connector body electrically conductive and thermally conductive and on the other hand electrically conductively and thermally conductively connected to the main current path, so that the rated current can be divided and heating at the contact points can be reduced. At the same time, improved heat dissipation via the outer body is possible.
  • the outer body can be connected to a main current path of the connection element via a further current-conducting, flexible, heat-conducting connecting piece.
  • the additional electrically conductive, flexible, thermally conductive connecting piece is arranged in the area of a thermally conductive ceramic bushing, so that heat can also be dissipated via the ceramic of the ceramic bushing.
  • the figure 1 shows a schematic representation of a connection element 1, which has a flexible power line element 10, which can be connected to a main current path of a switchgear.
  • the flexible power line element 10 is electrically conductively connected to the connection body 40 .
  • the connection body 40 has a receptacle 42 (not shown) for a moving contact of a vacuum interrupter.
  • the connection element 1 has a flexible, thermally conductive connection piece 30 which thermally conductively connects the connection body 40 or the flexible line element 10 connected to the connection body 40 to an outer body 50 .
  • connection element 1 in the example of figure 1 via a heat sink 20 which is thermally conductively connected to the connection body 40 and has cooling ribs 52 here which run parallel to the longitudinal axis of the receiving opening 42 . Since the receiving opening 42 at the in figure 1 is arranged unrecognizable underside of the connecting element 1, the receiving opening 42 is indicated by a dashed line.
  • FIG. 1 shows a flexible power line element that is made up of several layers 12 of an electrically conductive, flexible material.
  • the conductive, flexible material is preferably copper, aluminum, stainless steel, a conductive plastic and/or a combination, in particular an alloy, of the conductive, flexible materials mentioned.
  • the figure 3 shows a section of a flexible power line element 10, in which the individual layers that form the flexible power line element are fanned out towards the edge.
  • the fanning out leads to improved heat dissipation, both through improved heat radiation and through heat emission to the insulating gas flowing past the flexible power line element 10 by convection.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermally Actuated Switches (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Claims (12)

  1. Elément (1) de connexion d'un contact mobile d'un tube interrupteur à vide comprenant,
    une pièce (40) de connexion et
    un élément (10) souple de conduction du courant, dans lequel l'élément (1) de connexion a au moins une pièce (50) extérieure et la pièce (40) de connexion est reliée à la au moins une pièce (50) extérieure par une pièce (30) souple de liaison conductrice de la chaleur,
    caractérisé en ce que
    la pièce (50) extérieure entoure en partie ou complètement l'élément (10) souple de conduction du courant.
  2. Elément (1) de connexion suivant la revendication 1, caractérisé en ce que
    la pièce (40) de connexion a un ou plusieurs dissipateurs (20) de chaleur.
  3. Elément (1) de connexion suivant la revendication 2, caractérisé en ce que
    le ou les dissipateurs (20) de chaleur ont des ailettes (52) de refroidissement, qui s'étendent parallèlement à l'axe longitudinal de l'ouverture (42) de réception du contact mobile d'un tube interrupteur sous vide de la pièce (40) de connexion.
  4. Elément (1) de connexion suivant la revendication 2 ou 3, caractérisé en ce que
    le ou les dissipateurs (20) de chaleur sont entourés partiellement ou complètement de la pièce (50) extérieure.
  5. Elément (1) de connexion suivant l'une des revendications précédentes,
    caractérisé en ce que
    le ou les dissipateurs (20) de chaleur sont vernis, de manière à ce que le ou les dissipateurs de chaleur ait une dimension de surface plus grande et/ou une plus grande émission de chaleur.
  6. Elément (1) de connexion suivant l'une des revendications précédentes,
    caractérisé en ce que
    la pièce (50) extérieure est formé d'une cage en un matériau conducteur de la chaleur.
  7. Elément (1) de connexion suivant l'une des revendications précédentes,
    caractérisé en ce que
    la pièce (30) de liaison souple conductrice de la chaleur est isolée électriquement.
  8. Elément (1) de connexion suivant l'une des revendications 1 à 6,
    caractérisé en ce que
    la pièce (30) de liaison conductrice de la chaleur est réalisée de manière à conduire le courant et la pièce (30) de liaison souple conductrice de la chaleur peut être reliée d'une manière conductrice à un trajet de courant principal de l'élément (1) de connexion par l'intermédiaire de la pièce (50) extérieure.
  9. Elément (1) de connexion suivant la revendication 8, caractérisé en ce que
    la pièce (50) extérieure peut être reliée à un trajet de courant principal de l'élément (1) de connexion par l'intermédiaire d'une autre pièce de liaison conductrice du courant souple et conductrice de la chaleur.
  10. Elément (1) de connexion suivant l'une des revendications précédentes,
    caractérisé en ce que la pièce (30) de liaison souple conductrice de la chaleur et/ou l'élément (10) souple de conduction du courant ont sur les faces des parties en éventail, qui agrandissent la surface et contribuent à une plus grande émission de chaleur.
  11. Installation de coupure isolée par du gaz comprenant un élément (1) de connexion suivant l'une des revendications précédentes et au moins un tube interrupteur sous vide, caractérisée en ce que
    un contact mobile du tube interrupteur sous vide est en contact avec l'élément (1) de connexion.
  12. Installation de coupure isolée par du gaz suivant la revendication 11,
    caractérisée en ce que
    le gaz isolant a un ou plusieurs des gaz suivants SF6 et/ou une ou plusieurs fluorocétones et/ou un ou plusieurs nitriles, notamment des nitriles fluorés et/ou de l'azote et/ou du dioxyde de carbone et/ou de l'oxygène et/ou de l'air sec et/ou une ou plusieurs oléfines et/ou un ou plusieurs oxiranes, notamment des oxiranes fluorés.
EP18716951.1A 2017-04-24 2018-03-29 Élément de raccordement pour un contact mobile d'une ampoule à vide et appareillage à isolation gazeuse doté d'un élément de raccordement pour un contact mobile d'une ampoule à vide Active EP3616227B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017206866.3A DE102017206866A1 (de) 2017-04-24 2017-04-24 Anschlusselement für einen Bewegkontakt einer Vakuumschaltröhre und gasisolierte Schaltanlage mit einem Anschlusselement für einen Bewegkontakt einer Vakuumschaltröhre
PCT/EP2018/058093 WO2018197150A1 (fr) 2017-04-24 2018-03-29 Élément de raccordement pour un contact mobile d'une ampoule à vide et appareillage à isolation gazeuse doté d'un élément de raccordement pour un contact mobile d'une ampoule à vide

Publications (2)

Publication Number Publication Date
EP3616227A1 EP3616227A1 (fr) 2020-03-04
EP3616227B1 true EP3616227B1 (fr) 2022-05-04

Family

ID=61952659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18716951.1A Active EP3616227B1 (fr) 2017-04-24 2018-03-29 Élément de raccordement pour un contact mobile d'une ampoule à vide et appareillage à isolation gazeuse doté d'un élément de raccordement pour un contact mobile d'une ampoule à vide

Country Status (4)

Country Link
EP (1) EP3616227B1 (fr)
CN (1) CN110537239B (fr)
DE (1) DE102017206866A1 (fr)
WO (1) WO2018197150A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU558250B2 (en) * 1981-02-12 1987-01-22 Westinghouse Electric Corporation High conductivity electrical junction
JPH10334743A (ja) * 1997-05-29 1998-12-18 Mitsubishi Electric Corp 可撓導体
SG87815A1 (en) * 1998-03-26 2002-04-16 Mitsubishi Electric Corp Flexible conductor and switchgear made with thereof
DE102004050786C5 (de) * 2004-10-14 2008-03-06 Siemens Ag Kupplungsvorrichtung mit Kühlkörper
WO2009079871A1 (fr) * 2007-12-07 2009-07-02 Abb (China) Limited Disjoncteur avec moyens de dissipation thermique
JP2010062092A (ja) * 2008-09-05 2010-03-18 Toshiba Corp 真空遮断器
ES2440697T3 (es) * 2009-10-05 2014-01-30 Ls Industrial Systems Co., Ltd. Montaje de terminal de circuito principal para disyuntor de vacío
CN105071280A (zh) * 2015-08-21 2015-11-18 亚洲电力设备(深圳)股份有限公司 适用于环保气体绝缘型的真空开关环网柜
CN105207106A (zh) * 2015-11-03 2015-12-30 江苏尔悦电力设备有限公司 一种气体绝缘开关柜
CN205488100U (zh) * 2016-02-25 2016-08-17 旭立科技股份有限公司 固化型导热介面元件及其散热装置

Also Published As

Publication number Publication date
DE102017206866A1 (de) 2018-10-25
EP3616227A1 (fr) 2020-03-04
CN110537239B (zh) 2022-04-29
CN110537239A (zh) 2019-12-03
WO2018197150A1 (fr) 2018-11-01

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