EP2586049A1 - Commutateur à gradins - Google Patents

Commutateur à gradins

Info

Publication number
EP2586049A1
EP2586049A1 EP11717953.1A EP11717953A EP2586049A1 EP 2586049 A1 EP2586049 A1 EP 2586049A1 EP 11717953 A EP11717953 A EP 11717953A EP 2586049 A1 EP2586049 A1 EP 2586049A1
Authority
EP
European Patent Office
Prior art keywords
switching
mtf
msv
mechanical
vacuum
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
EP11717953.1A
Other languages
German (de)
English (en)
Other versions
EP2586049B1 (fr
Inventor
Christian Hammer
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
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 filed Critical Maschinenfabrik Reinhausen GmbH
Publication of EP2586049A1 publication Critical patent/EP2586049A1/fr
Application granted granted Critical
Publication of EP2586049B1 publication Critical patent/EP2586049B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01H9/0038—Tap change devices making use of vacuum switches
    • 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

Definitions

  • the present invention relates to a tap changer for uninterrupted switching between at least two winding taps of a
  • Stepped transformer having the features of the independent claim.
  • Load branches are each a vacuum interrupter as the main contact and a further vacuum interrupter, provided in series with a cross-over resistance, as a resistor contact.
  • Resistive contact of the receiving side is closed, so that between the two stages n and n + 1 a limited by the switching resistors
  • completed contacts also can not fouling and contamination of the surrounding insulating oil in the tap changer by contact erosion or
  • vacuum interrupters for regulating power transformers is a high Surge withstand voltage of preferably up to voltages of 100 kV and more clearly required beyond.
  • Such unwanted surge voltages the amount of which is essentially due to the structure of the tapped transformer and the winding parts between the tapping stages are, on the one hand
  • 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 aO strength.
  • Load branch provided with a path which comprises 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 variably adjustable or switchable switching contact. Furthermore, has the
  • Tap changer two resistance branches, each having a series arrangement of at least one vacuum interrupter, at least one mechanical switching element and have a resistance. In this way, the at least two winding taps can be variably coupled together and / or with one another
  • the circuit arrangement according to the invention forms a so-called.
  • This circuit which allows soft switching on and off. This circuit is particularly suitable for a combination with a
  • the switching point of the mechanical switching element is in
  • a preferred embodiment variant permanent main contacts provide that produce a direct line connection between the respective winding tap of the tapped transformer and the load dissipation in the closed position switch.
  • 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 aufrichden page to all other switching elements.
  • a preferred embodiment of the tap changer according to the invention provides a rotatable switching shaft, the actuators for each
  • Actuating phase associated with the mechanical switching elements or vacuum interrupters wherein the actuating elements are each assigned to the control shaft rotatable, concentric cams with frontal or peripheral contours. These end or circumferential contours can be formed in particular by projections, cams o. The like., Which are used to actuate the switching elements and / or vacuum interrupters are suitable.
  • the switching times triggered by the cams are independent of their direction of rotation or of the
  • FIG. 1 shows a flowchart for illustrating the switching sequences of an exemplary embodiment of a tap changer according to the invention during a switching cycle in respectively different switching directions.
  • Fig. 2 shows a circuit diagram to illustrate the interconnection of
  • FIG. 3 shows a further flowchart to illustrate the switching sequences of an alternative embodiment of the tap-changer according to the invention during a switching cycle in respectively different switching directions.
  • FIG. 4 shows, with reference to a further circuit diagram, a simplified variant of a tap changer without the permanent main contacts shown in FIG. 2.
  • FIG. 1 Flowchart illustrate the switching sequences of a first embodiment of a tap changer 10 according to the invention (see Fig .. 2) during a switching cycle in each different switching directions.
  • the upper diagram illustrates the switching sequence of a total of six individual switching units existing tap changer 10 in a first switching direction, characterized by a drive direction in the diagram from left to right, while the lower
  • Diagram showing the switching sequence in the opposite switching direction, characterized by a drive direction in the diagram from right to left.
  • FIG. 2 shows a circuit diagram with the
  • the tap changer 10 shown in FIG. 2 on the basis of a block diagram is used for uninterrupted switching between two winding taps 12 and 14 of a
  • Stepped transformer 16 The tap changer 10 forms a load branch or load path 18, which runs in the middle of the circuit diagram between two resistance branches 20 and 22.
  • the load path 8 comprises a series arrangement of a vacuum interrupter MSV and a mechanical switching element MTF, which in the present context can also be referred to as a variably adjustable or switchable switching contact.
  • the mechanical switching element MTF acts as a switch that the
  • Vacuum switch tube MSV optionally electrically conductively connected to the first 12 or the second winding tap 14 connects.
  • the two winding taps 12 and 14 of the tapped transformer 16 can be variably coupled to each other and / or acted upon with a load dissipation LA.
  • FIG. 2 further shows two additional switches or
  • Permanent main contacts MC (MC ! And MC 2 ), which are additionally provided on the disconnecting and connecting side. These so-called permanent main contacts MC or additional switches each carry a continuous current. In addition, they are preferably switched so that the contact MC ! on the disconnecting side before all other switching elements (MSV, TTV, MTF, TTF) opens and the contact MC 2 closes on the aufrichden side to all other switching elements. As shown in FIG. 2, the first contact MCi is disposed between the first winding tap 12 and the load dissipation, while the second contact MC 2 is disposed between the second winding tap 14 and the load dissipation.
  • FIG. 1 with a defined time offset to each other in each case different switching directions (n - n + 1 or n + 1 - n) jointly switchable.
  • the vacuum interrupter TTV 2 arranged in the third path 22 or in the second resistance branch first opens before the associated mechanical switching element TTF 2 in the same with a short time offset Path 22 of the first
  • Stepped transformer 16 switches. Subsequently, the vacuum interrupter MSV located in the load branch 18 opens before it is in the same path 18
  • Switch MTF during the opening phase of the tube MSV switches from one to the other winding tap 12 and 14 respectively. Subsequently, the vacuum interrupter TTV
  • Switching element TTF ! in the second path 20 also closes the corresponding
  • Step switch 10 in a first switching direction characterized by a
  • the three vacuum interrupters MSV, ⁇ and TTV 2 and the three mechanical switching elements MSV, TTF ! and TTF 2 are shown in FIG. 3 with a defined time offset to each other in each different switching directions (n -> n + 1 or n + 1 -> n) jointly switchable.
  • first the vacuum interrupter TTV 2 arranged in the third path 22 or in the second resistance branch opens before the associated mechanical switching element TTF 2 in the same with a short time offset Path 22 of the first
  • Stepped transformer 16 switches. Subsequently, the vacuum interrupter MSV located in the load branch 18 opens before first the vacuum interrupter TTV 2 closes and then the changeover switch MTF located in the load path 18 switches over from one to the other winding tapping 12 or 14 during the opening phase of the tube MSV. Subsequently, the vacuum interrupter TTVi located in the second path 20 or in the first resistance branch opens, so that during the open phase of this tube TV t the corresponding switching element TTF 1 switches in this branch 20. After opening the tube TTVi closes the in
  • Switching delay in the switch-back direction for the switching element MTF can, for example, by a suitable freewheeling element o. The like. Are triggered, which can provide the desired hysteresis in the switching operations in different switching directions. Due to the in-stage switch 10 located mechanically rigid coupling of the other two switching elements and the total of three vacuum interrupters in the three branches of the switching operation in reverse direction in reverse
  • FIG. 4 shows, with reference to a further circuit diagram, a simplified variant of the tap changer 10, in which the permanent main contacts or mechanical contacts MC (see FIG. 2) are missing.
  • the tap changer 10 only the already described for Fig. 2 three branches 18, 20 and 22 are present.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

L'invention concerne un commutateur à gradins (10) pour commuter sans interruption entre au moins deux prises de bobinage (12, 14) d'un transformateur à gradins (16). Le commutateur à gradins est doté d'une branche de charge pourvue d'un chemin (18) comprenant un montage en série d'au moins une ampoule à vide (MSV) et d'au moins un élément de commutation mécanique (MTF), ainsi que de deux branches de résistance (20, 22) comprenant chacune un montage en série d'au moins une ampoule à vide (TTV1; TTV2), d'au moins un élément de commutation mécanique (TTF1; TTF2) ainsi que d'une résistance (R1; R2). Lesdites deux prises de bobinage (12, 14) peuvent être couplées de manière variable l'une à l'autre et/ou peuvent être soumises à une dérivation de charge (LA). Lesdites au moins trois ampoules à vide (TTV1; TTV2; MSV) et au moins trois éléments de commutation mécaniques (TTF1; TTF2; MTF) peuvent être commutés ensemble avec un décalage temporel défini les uns par rapport aux autres dans des sens de commutation différents. De plus, l'élément de commutation mécanique (MTF) dans la branche de charge présente un moment de commutation entre les deux prises de bobinage (12, 14) du transformateur à gradins (16) lors duquel le contact de l'ampoule à vide (MSV) montée en série avec l'élément de commutation mécanique (MTF) est ouvert.
EP11717953.1A 2010-06-22 2011-04-28 Commutateur à gradins Not-in-force EP2586049B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010024612.3A DE102010024612B4 (de) 2010-06-22 2010-06-22 Stufenschalter
PCT/EP2011/002120 WO2011160743A1 (fr) 2010-06-22 2011-04-28 Commutateur à gradins

Publications (2)

Publication Number Publication Date
EP2586049A1 true EP2586049A1 (fr) 2013-05-01
EP2586049B1 EP2586049B1 (fr) 2016-07-27

Family

ID=44243618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11717953.1A Not-in-force EP2586049B1 (fr) 2010-06-22 2011-04-28 Commutateur à gradins

Country Status (4)

Country Link
EP (1) EP2586049B1 (fr)
CN (1) CN102947909B (fr)
DE (1) DE102010024612B4 (fr)
WO (1) WO2011160743A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112670067B (zh) * 2020-11-18 2022-07-01 中国电力科学研究院有限公司 一种对称型真空泡负载平衡的过渡电路装置及控制方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1638536A1 (de) * 1967-01-11 1970-08-06 Siemens Ag Anordnung und Verfahren zur unterbrechungslosen Lastumschaltung bei Stufentransformatoren
DE2357209B1 (de) * 1973-11-16 1975-02-13 Maschinenfabrik Reinhausen Gebrueder Scheubeck Kg, 8400 Regensburg Stufenschalter für Stufentransformatoren
DE2604344A1 (de) * 1976-02-05 1977-08-18 Reinhausen Maschf Scheubeck Stufentransformator mit ueberspannungsschutzeinrichtung
KR101242828B1 (ko) * 2004-06-30 2013-03-12 에이비비 리써치 리미티드 전환 스위치, 이 스위치의 작동 방법, 및 이 스위치의 사용 방법
KR100814514B1 (ko) * 2006-01-27 2008-03-17 가부시끼가이샤 도시바 부하시 탭 전환 장치
CN201359917Y (zh) * 2009-03-04 2009-12-09 上海华明电力设备制造有限公司 一种双轨道凸轮盘
CN201359915Y (zh) * 2009-03-04 2009-12-09 上海华明电力设备制造有限公司 有载分接开关的真空泡切换芯子
DE102010019949A1 (de) * 2010-05-08 2011-11-10 Maschinenfabrik Reinhausen Gmbh Laststufenschalter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011160743A1 *

Also Published As

Publication number Publication date
CN102947909B (zh) 2016-01-20
DE102010024612A1 (de) 2011-12-22
EP2586049B1 (fr) 2016-07-27
CN102947909A (zh) 2013-02-27
WO2011160743A1 (fr) 2011-12-29
DE102010024612B4 (de) 2015-06-03

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