EP2534663B1 - Commutateur à gradins comportant un élément à roue libre - Google Patents

Commutateur à gradins comportant un élément à roue libre Download PDF

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Publication number
EP2534663B1
EP2534663B1 EP10796278.9A EP10796278A EP2534663B1 EP 2534663 B1 EP2534663 B1 EP 2534663B1 EP 10796278 A EP10796278 A EP 10796278A EP 2534663 B1 EP2534663 B1 EP 2534663B1
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EP
European Patent Office
Prior art keywords
switching
mechanical
ttf
tap changer
elements
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
EP10796278.9A
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German (de)
English (en)
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EP2534663A1 (fr
Inventor
Klaus HÖPFL
Gregor Wilhelm
Silke Wrede
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.)
Maschinenfabrik Reinhausen GmbH
Scheubeck GmbH and Co
Original Assignee
Maschinenfabrik Reinhausen GmbH
Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
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Publication of EP2534663A1 publication Critical patent/EP2534663A1/fr
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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
    • H01H9/0005—Tap change devices
    • H01H9/0027—Operating mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/08—Turn knobs
    • H01H3/10—Means for securing to shaft of driving 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
    • 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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • 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

Definitions

  • the present invention relates to a tap changer for uninterrupted switching between at least two winding taps of a tapped transformer having a rotatable switching shaft associated with the actuating elements for a plurality of actuation phases for mechanical switching elements or vacuum interrupters.
  • a tap changer which has a total of four vacuum interrupters per phase.
  • each of the two existing load branches each have a vacuum interrupter as the main contact and a further vacuum interrupter, in series with a cross-over resistance, provided as a resistor contact.
  • the main contact of the turn-off side is first opened, after which the resistance contact of the receiving side is closed, so that between the two stages n and n + 1 through the Overload resistors limited compensating current flows. After the previously closed resistive contact has opened the disconnecting side, then closes the main contact of the receiving side, so that the entire load current from the new winding tapping n + 1 leads to the load dissipation, whereby the switching is completed.
  • the vacuum interrupters used in this known tap-changer and numerous similar known embodiments instead of conventional mechanical contacts for load switching have a number of advantages. Since the contacts themselves are encapsulated in a vacuum, high switching capacities can be achieved. The encapsulated, hermetically sealed contacts also can not lead to the fouling and contamination of the surrounding insulating oil in the tap-changer by contact erosion or arcing. Furthermore, vacuum interrupters are now available as very compact components; they have a small footprint and require only relatively low actuation forces.
  • a diverter switch a tap changer for uninterrupted switching between at least two winding taps of a tapped transformer known.
  • This has a rotatable switching shaft, are arranged on the concentric cams with different peripheral contours.
  • mechanical switching elements or vacuum interrupters are actuated by different actuators for several actuation phases.
  • From the DE 21 61 677 A1 is a drive for a diverter switch has become known, in which the actuation of the individual switching elements by means of one or more cams occurs.
  • a switching arrangement consisting of several vacuum interrupters, known in which the movable contacts cooperate with provided on a drive shaft cam, so that the contacts undergo a rotation of the drive shaft, a predefined switching sequence.
  • An object of the present invention is to propose a tap changer of the type mentioned above with high surge voltage resistance, also referred to as a0-strength.
  • a tap changer for uninterrupted switching between at least two winding taps of a tapped transformer with the features of independent claim 1 is proposed.
  • a load branch is provided with at least two parallel paths.
  • Each of these paths can comprise a series arrangement of at least one vacuum interrupter and at least one mechanical switching element, which in the present context can also be referred to as a variably adjustable or switchable switching contact.
  • One of the at least two paths may be associated with a resistor arranged in series with the respective vacuum interrupter and the mechanical switching element.
  • the at least two winding taps can be variably coupled together and / or acted upon with a load dissipation.
  • the total of at least two vacuum interrupters and at least two mechanical switching elements with a defined time offset to each other in each case in different switching directions can be switched together.
  • at least one of the mechanical switching elements has a relation to the other switching elements or vacuum interrupters and independent of the switching direction temporally relocated switching or trip time, whereby certain switching states can be realized in a simple, reliable and exactly reproducible manner by mechanical means.
  • the relocated switching or tripping time has a defined time interval to the other switching or trip times of the other mechanical switching elements and vacuum interrupters.
  • a temporally relocated switching or trip time having mechanical switching element switches all other switching elements and vacuum interrupters downstream.
  • the tap changer according to the invention provides a rotatable switching shaft, the actuators are assigned for each actuation phase for the mechanical switching elements or vacuum interrupters, the actuators are each assigned to the switching shaft rotatable, concentric cams with frontal contours. These end contours can be formed in particular by projections, cams o. The like., Which are suitable for operating the switching elements and / or vacuum interrupters.
  • the switching times triggered by the at least one cam plate corresponding to the mechanical switching element that is to be shifted in time are delayed in time regardless of its direction of rotation or of the direction of rotation of the switching shaft relative to the rotational movements of the other cams or of the other actuating elements.
  • an additional permanent main contact may be provided on the tap changer and / or coupled thereto.
  • each have a mechanical contact (MC) may be present, which carries a continuous current.
  • the contact of such a permanent main contact switch preferably opens on the disconnecting side before all other switching elements (MSV, TTV, MTF, TTF), while the contact closes on the aufcampusden page to all other switching elements.
  • the delayed in each switching direction switching or triggering of at least one mechanical switching element can be realized in the tap changer, that the at least one switching means and the cam associated therewith a freewheeling element for phase shifting the switching time is assigned depending on the direction of rotation of the switching shaft.
  • This freewheeling element may in particular comprise a circular segment-shaped, for switching shaft concentrically arranged guide slot for a driver of the cam and a sleeve-like separator which is fixed to the housing fixed against the rotatable shaft and cams and decouples the rotational movements of the shift shaft and mounted on this cam from each other.
  • the separator ensures in a simple and effective manner that the cam is not uncontrolled rotated when turning the shift shaft, for example.
  • the invention is based on the general idea of being able to realize the desired surge voltage resistance or a0 strength by respectively downstream switching of a mechanical switching element of one of several load branches independently of the respective switching direction. In this way, possibly occurring surge voltages do not burden the vacuum interrupters in the respective load branch not leading the load current and thus remain harmless for the vacuum interrupters.
  • FIGS. 4 to 7 show an exemplary embodiment of a tap changer 10, comprising a switching shaft 22 with actuating elements 24 arranged thereon and switching elements 26 coupled thereto.
  • the schematic representation of FIG Fig. 3 further shows a plan view of the tap changer 10 according to Fig. 1 from underneath.
  • FIGS. 4 to 7 has a downstream switching or tripping time of one of two mechanical switching elements TTF a defined time interval to the other switching or Tripping times of a first mechanical switching element MTF and two vacuum interrupters MSV and TTV on.
  • a temporally relocated switching or triggering time having mechanical switching element TTF switches all other switching elements and vacuum interrupters downstream, regardless of the switching direction, ie the direction of rotation of the switching shaft 22nd
  • the in the FIGS. 1 to 3 shown variant embodiment of the tap changer 10 according to the invention provides a rotatable about its axis in both directions switching shaft 22, the four parallel arranged disc-shaped actuators 24 for each actuation phase for the mechanical switching elements 26 and vacuum interrupters are assigned, the actuating elements 24 each by the shift shaft rotatable, concentric cams 28 are formed with peripheral contours or projections 30.
  • contours and / or projections could also be arranged on the front side of the cams.
  • These projections 30 trigger the respective switching elements 26 and vacuum interrupters in the switching block 27, by being in the outline of the switching block 27 and are rotated past it, where they rotate the respective mechanical switching element and / or the respective vacuum interrupter to a defined switching path or actuate.
  • each of the four existing cams 28 may each have a plurality of equally spaced projections or cams 30 on its outer circumference, so that for a complete switching cycle of the tap changer 10 no complete rotation of the switching shaft 22 is required by 360 degrees, but that, for example, already a 120 ° rotation can be sufficient for this.
  • the outer contours of the projections or cams 30 of the cams 28 and a special mechanism for supporting at least one of the cams 28 make it possible for the switching points triggered by the at least one cam plate 28 corresponding to the mechanical switching element TTF to be shifted in time to be triggered independently of its direction of rotation or from the direction of rotation of the switching shaft 22 with respect to the rotational movements of the other cams 28 and the other actuators 24 are delayed in time.
  • This freewheel element 34 is formed as a circular segment-shaped, to the switching shaft 22 concentrically arranged guide slot 36 for an annular driver of the corresponding cam 28 and a sleeve-like separator 38 which is fixed relative to the rotatable switching shaft 22 and guided thereon cam 28 by means of a boom fixed to the housing 40 and the rotational movements of the switching shaft 22 and the mounted on this cam 28 are decoupled from each other.
  • the separator 38 ensures in a simple and effective manner that the cam 28 is not uncontrolled rotated when turning the switching shaft 22, for example. By viscous effects of the oil bath in which the components of the tap changer 10 are arranged or immersed, but that the cam 22 is rotated solely by the cooperating driver elements and guide slots 36.
  • each of a plurality of load branches independent of the respective switching direction of the switching shaft 22 to ensure a desired surge voltage resistance or a0-strength by each downstream switching of the mechanical switching element 32 and TTF. In this way, possibly occurring surge voltages do not burden the vacuum interrupters in the respective load branch not leading the load current and thus remain harmless for the vacuum interrupters.
  • FIG. 4 shows an exemplary and qualitative to understand flowchart to illustrate the switching sequences of an embodiment of the tap changer 10 of the invention (see. FIGS. 1 to 3 ) during a switching cycle in each case different switching directions.
  • the upper diagram illustrates the switching sequence of a total of four individual switching units tap changer in a first switching direction, while the lower diagram shows the switching sequence in the opposite direction of switching.
  • the schematic representations of Fig. 5 ( Figures 5a to 5h ) show in a total of nine Kunststoff woodenn the individual, successive switching states of the various components of the tap changer in a first switching direction, what in Fig. 5a is characterized by the switching direction n ⁇ n + 1.
  • the tap changer 10 forms a load branch with two parallel paths 18 and 20.
  • Each of these paths 18 and 20 each comprise a series arrangement of a vacuum interrupter MSV, TTV and a mechanical switching element MTF, TTF, which may be referred to in the present context as a variably adjustable or switchable switching contact.
  • the first path 18 is formed by the series-connected first vacuum interrupter MSV and the first mechanical switching element MTF.
  • the second path 20 is formed by a series connection of the second vacuum interrupter TTV, the second mechanical switching element TTF and a resistor R.
  • the two vacuum interrupters MSV and TTV and the two mechanical switching elements MTF and TTF are according to Fig. 4 with a defined time offset to each other in each case different switching directions (n ⁇ n + 1 or n + 1 ⁇ n) jointly switchable.
  • the second mechanical switching element TTF a relation to the first switching element MTF and the two vacuum interrupters MSV and TTV and independent of the switching direction temporally relocated switching or trip time, whereby certain switching states in a simple, reliable and exactly reproducible way Help mechanical means can be realized.
  • the second mechanical switching element TTF which has a time-shifted switching or triggering time, shifts downstream of all other switching elements and vacuum tubes.
  • the diagram of Fig. 4 shows the sequences in a complete switching operation, starting from the time zero, above for a drive direction from left to right (n ⁇ n + 1), ie ending at a definable time (see. Fig. 5 ) and down for a right-to-left drive direction (n + 1 ⁇ n), ie beginning at a definable time corresponding to the lower scale and ending at the far left at zero.
  • the switching position of the tap changer 10 at the start of switching is in Fig. 5a clarified.
  • the first vacuum interrupter MSV is in this case closed, while the switching contact of the second vacuum interrupter TTV is open.
  • the first mechanical switching element MTF is in a first switching position, in which the load current I L from the first winding tap 12 of the tapped transformer 16 via the first mechanical switching element MTF and the closed first vacuum interrupter MSV to load discharge LA can flow.
  • the second vacuum interrupter TTV is closed (see. Fig. 5b ), after which the first vacuum interrupter MSV is opened (cf. Fig. 5c ).
  • This opening after a short time after the shift starts is in Fig. 5d clarified.
  • first switching position of the second mechanical switching element TTF flows the load current I L in the in the FIGS. 5d and 5e from the first winding tapping 12 of the tapped transformer 16 through the second load branch or second path 20, which can also be referred to as a resistance branch or R branch, to the load lead LA.
  • the first mechanical switching element MTF is switched over ( Fig. 5d, Fig. 5e ), whereby the closing of the first vacuum interrupter MSV ( Fig. 5e . Fig. 5f ) and the subsequent opening of the second vacuum interrupter TTV ( Fig. 5f, Fig. 5g ) is prepared.
  • the load current I L flows in the in Fig. 5g shown manner of the second winding tap 14 of the tapped transformer 16 through the correspondingly connected first mechanical switching element MTF and the closed first vacuum interrupter MSV for load dissipation LA.
  • the second mechanical switching element TTF is in turn switched over to the second winding tap 14 (FIG. Fig. 5g . Fig. 5h ), which completes the switching cycle.
  • the representations of the Fig. 6 show in several circuit diagrams, the individual, successive switching states of the various components of the tap changer in a second switching direction. So the lower diagram shows the Fig. 4 the processes in a complete downshift, for a drive direction from right to left (n + 1 ⁇ n), ie starting at a time corresponding to the lower scale and ending at the very left at zero.
  • the switching position of the tap changer 10 at the start of switching within a first period is in Fig. 6a clarified.
  • the first vacuum interrupter MSV is in this case closed, while the switching contact of the second vacuum interrupter TTV is open.
  • the first mechanical switching element MTF is in its second switching position, in which the load current I L from the second winding tap 14 of the tapped transformer 16 via the first mechanical switching element MTF and the closed first vacuum interrupter MSV to load discharge LA can flow. This is at the same time the switching position accordingly Fig. 5h , with which the first switching cycle according to the upper diagram of Fig. 4 was completed.
  • the invention provides in this case that the second mechanical switching element TTF is not switched at an early time, but first in the in Fig. 6a (as well as in the FIGS. 6b to 6f ) shown second switching position remains, which corresponds to the downshift Fig. 6 can only be realized that the switching movement of the second mechanical switching element TTF is at least partially decoupled from the switching movements of the other switching elements or vacuum interrupters, which means the freewheeling element according to the FIGS. 1 to 3 he follows.
  • the second vacuum interrupter TTV is closed (see. Fig. 6a ), after which the first vacuum interrupter MSV is opened (cf. Fig. 6b ).
  • This opening of the first vacuum interrupter MSV takes place within a definable period of time after the start of the shift, which results in Fig. 6b (Open) and in Fig. 6c (MSV open) is clarified.
  • Fig. 6b Open
  • Fig. 6c MSV open
  • the first mechanical switching element MTF is switched over ( Fig. 6c . Fig. 6d ), whereby the closing of the first vacuum interrupter MSV ( Fig. 6d, Fig. 6e ) and the subsequent opening of the second vacuum interrupter TTV ( Fig. 6e . Fig. 6f ) is prepared.
  • the load current I L thus flows back into the in Fig. 6f shown manner of the first winding tap 12 of the tapped transformer 16 through the correspondingly connected first mechanical switching element MTF and the closed first vacuum interrupter MSV for load dissipation LA.
  • the second mechanical switching element TTF is in turn switched over to the first winding tap 12 in the case of this switch-back cycle ( Fig. 6f, Fig.
  • the illustrated switching delays of the second mechanical switching element TTF form a realization of the general idea of the invention by means of a suitable freewheeling element in the tap changer by each downstream switching of the mechanical switching element TTF in one of two load branches independent of the respective switching direction to achieve the desired surge voltage resistance or a0-strength to be able to.
  • possibly occurring surge voltages burden the vacuum interrupters MSV and TTV in each case not the load current leading load branch and thus remain harmless for the vacuum interrupters.
  • FIG. 7 shows on the basis of a further circuit diagram a variant of a supplemented by two additional switches or permanent main contacts MC Step switch 10.
  • each mechanical contacts MC are additionally provided on the off and aufproofden side.
  • These permanent main contacts MC or additional switches each carry a continuous current.
  • they are switched so that the contact MC2 opens on the disconnecting side in front of all other switching elements (MSV, TTV, MTF, TTF) and the contact MC2 on the upstream side closes after all other switching elements.

Claims (7)

  1. Commutateur à gradins (10) pour permettre une commutation sans interruption entre au moins deux prises d'enroulement (12, 14) d'un transformateur à gradins (16) qui comporte un arbre de commutation rotatif (22) auquel sont associés des éléments d'actionnement (24) de plusieurs phases d'actionnement pour des éléments de commutation mécaniques (MTF, TTF) ou des tubes de commutation à vide (MSV, TTV), ces éléments d'actionnement (24) étant respectivement associés à des disques à cames concentriques (28) pouvant être entrainés en rotation par l'arbre de commutation (22) et ayant des profilages, des saillies, des cames (30) ou similaires frontaux ou périphériques,
    caractérisé en ce qu'
    il est prévu un élément à roue libre (34) qui est formé d'une coulisse de guidage (36) en forme de segment de cercle montée concentriquement à l'arbre de commutation (22) pour un élément d'entrainement en forme de couronne circulaire du disque à cames (28) correspondant, ainsi que d'un élément de séparation (38) en forme de manchon pour que les mouvements de rotation de l'arbre de commutation (22) et du disque à cames (28) monté sur celui-ci soient découplés, de sorte que les instants de commutation déclenchés par au moins un disque à cames (28) soient chronologiquement retardés indépendamment du sens de rotation de l'arbre de commutation (22) par rapport aux mouvements de rotation des autres disques à cames (28) ou des autres éléments d'entrainement (24).
  2. Commutateur à gradins conforme à la revendication 1, dans lequel à au moins l'un des moyens de commutation ou des éléments de commutation (24) et au disque à cames (28) associé à celui-ci est associé un élément à roue libre (34) permettant un déphasage de l'instant de commutation respectivement selon le sens de rotation de l'arbre de commutation (22).
  3. Commutateur à gradins conforme à la revendication 1 ou 2, dans lequel l'élément de séparation (38) en forme de manchon de l'élément à roue libre (34) est ancré solidairement au boitier par rapport à l'arbre de commutation rotatif (22) et aux disques à cames (28).
  4. Commutateur à gradins conforme à l'une des revendications 1 à 3, dans lequel il est prévu un circuit de charge avec au moins deux voies parallèles (18, 20) comprenant chacune un montage en série d'au moins un tube de commutation à vide (MSV, TTV) et d'au moins un élément de commutation mécanique (MTF, TTF, 32), à au moins l'une de ces voies (18, 20) étant associée une résistance (R) montée en série avec le tube de commutation à vide (TTV) et l'élément de commutation mécanique (TTF), respectifs les prises d'enroulement (12, 14) qui sont au moins au nombre de deux pouvant être couplées l'une à l'autre de façon variable et/ou alimentées avec une sortie de charge (LA), les tubes de commutation à vide (MSV, TTV) globalement au moins au nombre de deux et au moins deux éléments de commutation (MTF, TTF) mécaniques pouvant être commutés ensemble entre eux avec un décalage chronologique défini dans des sens de commutation respectivement différents, et au moins l'un des éléments de commutation mécaniques (TTF) présentant un instant de commutation ou de déclenchement chronologiquement retardé par rapport aux autres éléments de commutation (MTF) ou tube de commutation à vide (MSV, TTV) et indépendamment du sens de commutation.
  5. Commutateur à gradins conforme à la revendication 4, dans lequel l'instant de commutation ou de déclenchement retardé présente une distance chronologique définie par rapport aux autres instants de commutation ou de déclenchement des autres éléments de commutation mécaniques (MTF) et tubes de commutation à vide (MSV, TTV).
  6. Commutateur à gradins conforme à la revendication 4 ou 5, dans lequel l'élément de commutation mécanique (TTF) présentant un instant de commutation ou de déclenchement chronologiquement retardé branche en aval tous les autres éléments de commutation (MTF) et tubes de liaison à vide (MSV, TTV).
  7. Commutateur à gradins conforme à l'une des revendications 1 à 6, dans lequel, il est également respectivement prévu, sur les côtés de commutation et de coupure un contact mécanique (MC) qui transmet un courant permanent par lequel le contact situé côté coupure s'ouvre avant les autres éléments de commutation (MSV, TTV, MTF, TTF), et le contact situé côté commutation se ferme après tous les autres éléments de commutation.
EP10796278.9A 2010-02-11 2010-12-11 Commutateur à gradins comportant un élément à roue libre Active EP2534663B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010007535.3A DE102010007535B4 (de) 2010-02-11 2010-02-11 Stufenschalter mit Freilaufelement
PCT/EP2010/007563 WO2011098106A1 (fr) 2010-02-11 2010-12-11 Commutateur à gradins comportant un élément à roue libre

Publications (2)

Publication Number Publication Date
EP2534663A1 EP2534663A1 (fr) 2012-12-19
EP2534663B1 true EP2534663B1 (fr) 2013-11-06

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US (1) US20130213776A1 (fr)
EP (1) EP2534663B1 (fr)
JP (1) JP5872487B2 (fr)
KR (1) KR101749197B1 (fr)
CN (1) CN102656652B (fr)
DE (1) DE102010007535B4 (fr)
HK (1) HK1178681A1 (fr)
WO (1) WO2011098106A1 (fr)

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TWI487839B (zh) * 2013-05-14 2015-06-11 King Yuan Electronics Co Ltd 旋轉凸輪式真空切換模組
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
DE102018102835B4 (de) * 2018-02-08 2023-03-16 Maschinenfabrik Reinhausen Gmbh Schaltelement für Stufenschalter und Stufenschalter
DE102019130460A1 (de) * 2019-11-12 2021-05-12 Maschinenfabrik Reinhausen Gmbh Laststufenschalter
DE102019130457B3 (de) * 2019-11-12 2021-02-04 Maschinenfabrik Reinhausen Gmbh Laststufenschalter
US20230411088A1 (en) * 2021-02-16 2023-12-21 Hitachi Energy Switzerland Ag Switching system for an on-load tap changer, on-load tap changer and method for switching a tap connection of an on-load tap changer

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JP4127571B2 (ja) * 1998-03-31 2008-07-30 株式会社東芝 負荷時タップ切換器
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DE19821775C1 (de) * 1998-05-14 1999-10-14 Reinhausen Maschf Scheubeck Lastwähler
JP2001015357A (ja) * 1999-07-02 2001-01-19 Toshiba Corp 負荷時タップ切換器
JP4240725B2 (ja) * 2000-01-31 2009-03-18 株式会社東芝 負荷時タップ切換器
US6693247B1 (en) * 2000-06-09 2004-02-17 Mcgraw-Edison Company Load tap changer with direct drive and brake
RU2345437C2 (ru) * 2004-06-30 2009-01-27 Абб Рисерч Лтд. Переключатель шунтирующего сопротивления, способ управления таким переключателем и использование такого переключателя
DE102005027527B3 (de) * 2005-06-15 2006-08-17 Maschinenfabrik Reinhausen Gmbh Kraftspeicher
JP4764318B2 (ja) * 2006-11-29 2011-08-31 株式会社東芝 負荷時タップ切換器
DE102010015051B4 (de) * 2010-04-15 2012-06-14 Maschinenfabrik Reinhausen Gmbh Mechanischer Schaltkontakt

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JP5872487B2 (ja) 2016-03-01
US20130213776A1 (en) 2013-08-22
CN102656652A (zh) 2012-09-05
CN102656652B (zh) 2015-03-25
JP2013519996A (ja) 2013-05-30
HK1178681A1 (en) 2013-09-13
DE102010007535B4 (de) 2017-12-21
EP2534663A1 (fr) 2012-12-19
WO2011098106A1 (fr) 2011-08-18
KR20120117752A (ko) 2012-10-24
DE102010007535A1 (de) 2011-08-11
KR101749197B1 (ko) 2017-07-03

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