EP2695177B1 - Commutateur à gradins et tube de commutation sous vide pour un tel commutateur à gradins - Google Patents

Commutateur à gradins et tube de commutation sous vide pour un tel commutateur à gradins Download PDF

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Publication number
EP2695177B1
EP2695177B1 EP12707541.4A EP12707541A EP2695177B1 EP 2695177 B1 EP2695177 B1 EP 2695177B1 EP 12707541 A EP12707541 A EP 12707541A EP 2695177 B1 EP2695177 B1 EP 2695177B1
Authority
EP
European Patent Office
Prior art keywords
contact
vacuum switching
vacuum
tap changer
load
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
EP12707541.4A
Other languages
German (de)
English (en)
Other versions
EP2695177A1 (fr
Inventor
Christian Hammer
Wolfgang Albrecht
Christian Pircher
Sebastian Rehkopf
Andreas Sachsenhauser
Konrad RÄDLINGER
Andreas Stelzer
Jörg Teichmann
Roman Renz
Andreas Lawall
Sylvio Kosse
Werner Hartmann
Norbert Wenzel
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
Maschinenfabrik Reinhausen GmbH
Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
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 Maschinenfabrik Reinhausen GmbH, Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG, Siemens AG filed Critical Maschinenfabrik Reinhausen GmbH
Publication of EP2695177A1 publication Critical patent/EP2695177A1/fr
Application granted granted Critical
Publication of EP2695177B1 publication Critical patent/EP2695177B1/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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
    • 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
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • 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
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H01H33/6647—Contacts; Arc-extinguishing means, e.g. arcing rings having fixed middle contact and two movable contacts
    • 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
    • H01H9/0005—Tap change devices
    • H01H9/0038—Tap change devices making use of vacuum 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
    • H01H33/666—Operating arrangements
    • H01H2033/6668—Operating arrangements with a plurality of interruptible circuit paths in single vacuum chamber
    • 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
    • H01H33/16—Impedances connected with contacts

Definitions

  • the invention relates to a tap changer for uninterrupted switching between winding taps of a tapped transformer.
  • the present invention further relates to a particularly suitable for such a tap changer novel vacuum interrupter.
  • a tap changer which has a total of four vacuum interrupters per phase.
  • a vacuum interrupter as the main contact and in each case a further vacuum interrupter, are provided in series connection with a transfer resistor, as a resistance contact.
  • the main contact of the disconnecting side is first opened, then closes the resistor contact the receiving side, so that between the two stages n and n + 1 through the switching resistors limited compensating current flows.
  • a tap changer is proposed in which a first winding tap of a first main current branch is connected via a series circuit, consisting of a first mechanical changeover switch and a first switching means, ie a vacuum interrupter or alternatively a semiconductor device, to a load dissipation.
  • a second winding tap of a second main current branch is likewise connected to the load lead via a series circuit consisting of a second mechanical changeover switch and a second switching means, ie a second vacuum interrupter or alternatively a second semiconductor component.
  • a first auxiliary current branch is branched off with an inserted resistor, by means of which an electrical connection to the second mechanical changeover switch of the second main current branch can be established and between the second winding tap and the second mechanical changeover switch a second auxiliary current branch with a another branched resistance is branched off, by means of which an electrical connection with the first mechanical switch of the first main current branch can be produced.
  • Object of the present invention is therefore to provide a tap changer for uninterrupted switching between winding taps of a tapped transformer, which allows a reduction in complexity and the required individual components, in particular makes mechanical switching means dispensable and also has a high surge voltage resistance. It is another object of the present invention to provide a vacuum interrupter, which is particularly advantageous for such a further developed tap changer usable.
  • the tap changer according to the invention is based on the general idea of combining a main contact and a serially connected mechanical switching means of a first load branch and an additional resistor contact of a second load branch in a single vacuum interrupter with a common housing.
  • the vacuum interrupter according to the invention is also based on the general inventive concept, by combining the design of a vacuum interrupter with a plurality of movable contact systems, which are arranged in separate and mutually sealed vacuum interrupters, the functionalities of two required according to the prior art vacuum interrupters and an additional mechanical switching means to be replaced by a single vacuum interrupter according to the invention.
  • the vacuum interrupter it is in the vacuum interrupter according to the invention, the previously separately required switching means, namely the two switching under load vacuum interrupters and another mechanical switching means, no longer, as in the prior art, designed as individual modules and installed in the tap changer, but now summarized in a single vacuum interrupter arranged in several separate vacuum interrupters vacuum switching sections.
  • the vacuum interrupter can now functionally replace both the mechanical switching means of a changeover switch and a mechanical on-off switch by a vacuum switching path.
  • the dielectric strength of the novel vacuum interrupter is increased by the fact that the individual vacuum interrupters of the multiple contact systems in separate, d. H. mutually sealed, vacuum interrupters, but in a common housing, are arranged.
  • the danger of existing potential differences between the various contact systems, which could lead to a comprehensive arc, are inventively achieved in that a plurality of separate vacuum switching chambers are provided in which the contact systems are each electrically coupled to each other.
  • Vacuum interrupters with two contact points are already known per se.
  • the DE 3344367 relates to a vacuum interrupter with two pairs of electrically connected in a single vacuum chamber, which are simultaneously actuated.
  • the DE 197 56 308 C1 relates to a similar vacuum interrupter with two arranged on a common axis switching sections, wherein internal contact pressure springs are provided.
  • the EP 0 258 614 B1 describes the combination of a vacuum interrupter and a specific wiring on a tap-changer. Here, several switching paths are arranged in a vacuum space, which causes a complicated structure of the vacuum interrupter with annular fixed contacts.
  • FIG. 2 shows a vacuum interrupter 1 according to the invention with a first contact system I, a second contact system II and a third contact system III, which are all designed as vacuum switching sections.
  • the contact systems I, II and III are each spatially separated in a separate vacuum interrupter chamber 2, 3 and 4, but arranged in a common, all contact systems I, II and III enclosing housing 5.
  • In the lateral wall region of the individual vacuum interrupters 2, 3 and 4 each have a plurality of insulating ceramics 6 are provided.
  • Centrally in extension of the rotationally symmetrical longitudinal axis s1 is an upper, fixed plunger 7 and at the opposite end a lower, movable plunger 8 is provided, which carry in the interior of the housing 5 in known manner each contact pieces 9 and 10.
  • the contact piece 9 can be separately and independently brought by an operation of the movable plunger 8 with a fixed contact 11 in electrical connection.
  • the fixed contact 11 is arranged on a provided in the interior of the housing 5 fixed, electrically conductive plunger 12, which penetrates the separation between the vacuum interrupters 3 and 4 in the extension of the longitudinal axis s1 and at its, the fixed contact 11, opposite end another fixed contact 13 has.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Housings And Mounting Of Transformers (AREA)

Claims (10)

  1. Commutateur à gradins équipé de tubes de commutation sous vide destiné à permettre d'effectuer une commutation sans interruption entre deux prises d'enroulement d'un transformateur à gradins, dans lequel :
    deux branches de charge sont prévues pour chacune des phases à commuter,
    chaque branche de charge comporte un contact de commutation sous vide (V1, V4) agissant en tant que contact principal et un moyen de commutation mécanique (U1, U2) pouvant être branché en série sur celui-ci,
    pour chacune des phases à commuter, il est prévu une branche de courant auxiliaire pouvant être branchée en parallèle sur la branche de charge correspondante,
    chaque branche de courant auxiliaire comprend au moins une résistance de passage (R1, R2) et, en série un autre contact de commutation sous vide (V2, V3) agissant en tant que contact auxiliaire, et
    la branche de charge et également la branche de courant auxiliaire des deux branches de charge sont reliées à une évacuation de charge commune,
    caractérisé en ce que
    le contact de commutation sous vide (V1) agissant en tant que contact principal de la première branche de charge et le moyen de commutation mécanique (U1) de la première branche de charge monté en série sur celui-ci et le contact de commutation sous vide (V3) de la seconde branche de charge agissant en tant que contact auxiliaire sont réunis dans un tube de commutation sous vide unique (1) avec un boîtier commun (5),
    le contact de commutation sous vide (V4) agissant en tant que contact principal de la seconde branche de charge et le moyen de commutation mécanique (U2) monté de la seconde branche de charge en série sur celui-ci et le contact de commutation sous vide (V2) agissant en tant que contact auxiliaire de la première branche de charge sont réunis dans un autre tube de commutation sous vide unique (1) avec un boîtier (5) commun, et
    il est respectivement prévu à la partie interne du boîtier commun (5) de l'un des tubes de commutation sous vide et de l'autre tube de commutation sous vide pour chacun des contacts de commutation sous vide (V1, V3, V2, V4) ainsi que pour chacun des moyens de commutation mécanique (U1, U2), une chambre de commutation sous vide (2, 3 et 4) respective séparée rendue mutuellement étanche.
  2. Commutateur à gradins conforme à la revendication 1,
    caractérisé en ce que
    les contacts de commutation sous vide (V1...V4) situés dans les chambres de commutation sous vide séparées (2, 3 et 4) et l'autre moyen de commutation mécanique (U1, U2) forment respectivement un système de contact (I, II, III) séparé.
  3. Commutateur à gradins conforme à la revendication 1 ou 2,
    caractérisé en ce que
    le premier système de contact (I) forme le moyen de commutation mécanique (U1 ou U2).
  4. Commutateur à gradins conforme à l'une des revendications 1 à 3,
    caractérisé en ce que
    le second système de contact (II) forme le contact de commutation sous vide (V1 ou V4).
  5. Commutateur à gradins conforme à l'une des revendications 1 à 4,
    caractérisé en ce que
    le troisième système de contact (III) forme le contact de commutation sous vide (V2 ou V3).
  6. Tube de commutation sous vide destiné à un commutateur à gradins conforme aux revendications 1 à 5,
    caractérisé en ce qu'
    il est prévu un boîtier (5) commun entourant la totalité du tube de commutation sous vide (1),
    il est prévu à la partie interne du boîtier (5) plusieurs systèmes de contact (I, II, et III) montés le long d'un axe longitudinal commun (S1), qui sont respectivement montés en étant séparés dans l'espace et de façon étanche à l'air dans une chambre de commutation sous vide séparée (2, 3 et 4).
  7. Tube de commutation sous vide conforme à la revendication 6,
    caractérisé en ce que
    le premier système de contact (I) comprend une tige poussoir (8) inférieure mobile le long de l'axe longitudinal (S1) sur laquelle est fixée une pièce de contact (9) qui peut être mise en contact avec une pièce de contact (12) fixée sur une tige poussoir fixe (12).
  8. Tube de commutation sous vide conforme à l'une des revendications 6 ou 7,
    caractérisé en ce que
    le second système de contact (II) comporte un contact (13) fixé également à la tige poussoir (12) à l'extrémité opposée à la pièce de contact (12), et qui peut être mis en contact avec une pièce de contact (15) fixée par l'intermédiaire d'une tige (17) sur une plaque électriquement conductrice (14) susceptible de coulisser le long de l'axe longitudinal (S1).
  9. Tube de commutation sous vide conforme à l'une des revendications 6 à 8,
    caractérisé en ce que
    le troisième système de contact (III) comporte une pièce de contact (10) fixée sur une tige poussoir fixe supérieure (7) et qui peut être mise en contact avec une pièce de contact (16) fixée par l'intermédiaire d'une tige (18) sur la plaque électriquement conductrice (14) susceptible de coulisser le long de l'axe longitudinal (S1).
  10. Tube de commutation sous vide conforme à l'une des revendications 7 à 9,
    caractérisé en ce qu'
    il est prévu dans chacune des chambres de commutation sous vide (2, 3 et 4) dans la zone des parois latérales du boîtier (5) plusieurs céramiques isolantes (6).
EP12707541.4A 2011-04-02 2012-03-02 Commutateur à gradins et tube de commutation sous vide pour un tel commutateur à gradins Active EP2695177B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011015922 2011-04-02
PCT/EP2012/053587 WO2012136423A1 (fr) 2011-04-02 2012-03-02 Commutateur à gradins et tube de commutation sous vide pour un tel commutateur à gradins

Publications (2)

Publication Number Publication Date
EP2695177A1 EP2695177A1 (fr) 2014-02-12
EP2695177B1 true EP2695177B1 (fr) 2016-05-18

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ID=45808882

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12707541.4A Active EP2695177B1 (fr) 2011-04-02 2012-03-02 Commutateur à gradins et tube de commutation sous vide pour un tel commutateur à gradins

Country Status (9)

Country Link
US (1) US8947188B2 (fr)
EP (1) EP2695177B1 (fr)
JP (1) JP2014514748A (fr)
KR (1) KR20140009389A (fr)
CN (1) CN103460324B (fr)
BR (1) BR112013022214A2 (fr)
ES (1) ES2586983T3 (fr)
HK (1) HK1189707A1 (fr)
WO (1) WO2012136423A1 (fr)

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DE102013107558A1 (de) * 2013-07-16 2015-01-22 Maschinenfabrik Reinhausen Gmbh Laststufenschalter
DE102013107552B4 (de) * 2013-07-16 2017-03-16 Maschinenfabrik Reinhausen Gmbh Laststufenschalter
JP6438028B2 (ja) * 2013-08-27 2018-12-12 マシイネンフアブリーク・ラインハウゼン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング 負荷時タップ切換器、電圧制御用タップ付変成器及びタップ付変成器での切換実施方法
CN105719891B8 (zh) * 2013-11-27 2019-04-16 乐清市川嘉电气科技有限公司 提升绝缘性能的真空开关管
CN105742112B8 (zh) * 2013-11-27 2019-04-12 乐清市川嘉电气科技有限公司 一种具有较好缓冲作用的真空开关管
CN105742111B8 (zh) * 2013-11-27 2019-04-12 乐清市川嘉电气科技有限公司 提升电场分布均匀性的真空开关管
CN105762003B8 (zh) * 2013-11-27 2019-03-22 乐清市川嘉电气科技有限公司 一种提升绝缘性能的真空开关管
CN105742113B8 (zh) * 2013-11-27 2019-04-19 乐清市川嘉电气科技有限公司 一种真空开关管
CN105895442A (zh) * 2013-11-27 2016-08-24 赵牧青 提升绝缘性能的真空开关管
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CN107968015B (zh) * 2017-03-31 2021-01-05 天津市先智电气设备有限公司 固封极柱及双电源转换开关
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CN111986902A (zh) * 2020-06-24 2020-11-24 中国电力科学研究院有限公司 一种带隔离触头的真空有载分接开关过渡电路及调压方法
CN111799075A (zh) * 2020-06-24 2020-10-20 中国电力科学研究院有限公司 一种真空有载分接开关双电阻过渡电路及调压方法
CN111799076A (zh) * 2020-06-24 2020-10-20 中国电力科学研究院有限公司 一种真空有载分接开关单电阻交替型过渡电路及调压方法
KR102219309B1 (ko) 2020-11-13 2021-02-24 한국에너지솔루션 주식회사 스마트 oltc 배전용 변압기

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Also Published As

Publication number Publication date
JP2014514748A (ja) 2014-06-19
EP2695177A1 (fr) 2014-02-12
ES2586983T3 (es) 2016-10-19
HK1189707A1 (zh) 2014-06-13
KR20140009389A (ko) 2014-01-22
CN103460324A (zh) 2013-12-18
US8947188B2 (en) 2015-02-03
WO2012136423A1 (fr) 2012-10-11
BR112013022214A2 (pt) 2017-05-23
CN103460324B (zh) 2016-03-02
US20140085028A1 (en) 2014-03-27

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