EP0088296A1 - Contact arrangement for tap-changers of regulating transformers - Google Patents

Contact arrangement for tap-changers of regulating transformers Download PDF

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Publication number
EP0088296A1
EP0088296A1 EP83101804A EP83101804A EP0088296A1 EP 0088296 A1 EP0088296 A1 EP 0088296A1 EP 83101804 A EP83101804 A EP 83101804A EP 83101804 A EP83101804 A EP 83101804A EP 0088296 A1 EP0088296 A1 EP 0088296A1
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EP
European Patent Office
Prior art keywords
contact
steel core
contact bridge
contacts
arcs
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
EP83101804A
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German (de)
French (fr)
Other versions
EP0088296B1 (en
Inventor
Dieter Dr.-Ing. Dohnal
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 Gebr SCHEUBECK & Co KG GmbH
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 Gebr SCHEUBECK & Co KG GmbH, Maschinenfabrik Reinhausen GmbH, Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG filed Critical MASCHINENFABRIK REINHAUSEN Gebr SCHEUBECK & Co KG GmbH
Publication of EP0088296A1 publication Critical patent/EP0088296A1/en
Application granted granted Critical
Publication of EP0088296B1 publication Critical patent/EP0088296B1/en
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • 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
    • H01H9/0016—Contact arrangements for tap changers

Definitions

  • the invention relates to a contact arrangement for tap changers of tap transformers, as is specified in the preamble of claim 1.
  • Such contact arrangements are known: DE-OS 29 10 161.
  • contact bridge connects a single step contact with the load conductor.
  • the contact bridge is in this case by means of a contact bridge carrier made of insulating material, in which it is mounted and which is carried along by a step-by-step rotating insulating tube arranged in the middle of the cylinder, operated.
  • the springs producing the contact pressure are located between the contact bridge carrier containing the bearing points for the contact bridge and an abutment.
  • a difficulty with such contact arrangements is that the two rolling tracks on the cylinder wall never run exactly parallel and that the rolling circumference of the two tracks can never exactly match, especially since one rolling track contains a large number of individual contacts, while the other rolling track is designed as a continuous contact track .
  • the arrangement of individual contacts inevitably leads to unevenness in the rolling path.
  • the contact bridge must therefore adapt to these unevenness in the rolling path of the individual contacts in each switching step, with a torque being transmitted from the contact roller rolling on the continuous contact path to the other contact roller in individual movement sections. This leads - even if only to a small extent - to constant mechanical stress on the flexible line by alternately expanding and screwing it back in. This sometimes leads to tearing of individual conductors of the flexible line, which begins with multilayer flexible lines in the outer layer in the immediate vicinity of the mounting point and can even lead to the complete breakage of the flexible line in the end.
  • the object of the invention is to improve the contact arrangement mentioned at the outset and, in particular, to make the flexible line between the two contact rollers mechanically more resistant. This object is achieved by the means specified in the characterizing part of patent claim 1.
  • the advantage achieved by the invention is, in particular, that the contact rollers can individually and individually adapt to the irregularities of the rolling curves, so that their individual mobility is essentially retained, without causing significant mechanical stress on the flexible line.
  • a torque can be transmitted from the contact roller rolling on the continuous contact track by means of the steel core to the first-mentioned contact roller, without causing the flexible line to twist is coming.
  • the steel core is expediently used as a flexible shaft, e.g. in the manner of a tachometer shaft, which consists of at least two oppositely wound layers of spring steel wire.
  • FIG. 1 An embodiment of the invention is shown in the accompanying drawing, which shows the detail of a cylindrical oil vessel of a load selector in FIG. 1, and is described in more detail below.
  • each step contact 2 or 3 can optionally be connected to the load conductor, that is to say to the contact track 6.
  • the contact bridge 7 has an upper and a lower contact roller 8 and 9, which are each supported in an arm 10, 11 of a contact bridge support made of insulating material, which is not shown in detail, and which are connected to one another in an electrically conductive manner via a flexible line 12.
  • a steel core 14 is located centrally in the flexible line 12 and is firmly connected to both contact rollers 8, 9.
  • the two arms 10, 11 of the contact bridge carrier, not shown, are movable relative to each other.
  • the contact pressure springs, also not shown, act on these arms 11 and 12 in the usual way.
  • the contact bridge support is moved - which is also not shown in detail - in a known manner by means of a drive tube mounted in the interior of the oil vessel, so that - as already mentioned - either a fixed step contact 2 or 3 with the contact track 6, which forms the load derivative, can be connected.
  • a fixed step contact 2 or 3 with the contact track 6, which forms the load derivative For better rolling or rolling of the contact roller 8 onto or from the contact surfaces 5 of the fixed step contacts 2, 3, these are provided with bevels 13.
  • the contact bridge 7 can easily adapt to the inevitable bumps, in particular in the rolling path containing the individual step contacts 2, 3, since each contact roll 8, 9 is guided individually in the arm 10 or 11 of the contact bridge carrier and since both contact rolls 8 , 9 are also movable relative to one another as a result of the flexible line 12 and the flexible steel core 14.
  • the contact bridge cannot be tilted practically, since each contact roller 8, 9 can individually adapt to its respective runway 1, 5, 13 or 6.
  • there can be no significant difference in the rotational speeds of the two contact rollers 8, 9 - which is a widening or twisting of the flexible Line 12 would entail - because the steel core can transmit torque from one contact roller, for example 9, to the other contact roller, for example 8.
  • the steel core 14 is firmly connected at its end 141 together with the end 121 of the flexible line to the respective contact roller 8 or 9.
  • the steel core is expediently designed in the manner of a tachometer shaft, which consists of at least two layers 143, 144 of spring steel wire wound in opposite directions, see FIG. 2, which shows sections of a steel core in enlarged form.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Contacts (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)

Abstract

1. Contact arrangement for tap switches of tapped transformers with a contact bridge (7), which is rollable along two circular arcs and which consists of two contact rollers (8, 9) axially connected with each other through a flexible cable (12) and borne in a contact bridge carrier, wherein each contact roller (8, 9) is borne in an arm (10, 11) of the contact bridge carrier and both the arms (10, 11) are pivotable independently of each other in the direction of the circular arcs, and with stationary contacts, which are arranged on the circular arcs and which are executed as individual contacts and also as contact tracks, wherein a connection between two contacts of both circular arcs is produceable each time by means of the rollable contact bridge (7), characterised thereby, that a steel core (14) is provided in the flexible cable (12) and arranged centrally of the cable, wherein each end (141) of the steel core is firmly connected with a contact roller (8 or 9).

Description

Die Erfindung betrifft eine Kontaktanordnung für Stufenschalter von Stufentransformatoren, wie sie im Oberbegriff des Patentanspruches 1 näher bezeichnet ist. Derartige Kontaktanordnungen sind bekannt: DE-OS 29 10 161.The invention relates to a contact arrangement for tap changers of tap transformers, as is specified in the preamble of claim 1. Such contact arrangements are known: DE-OS 29 10 161.

Diese Kontaktanordnungen werden bei Lastwählern für Stufentransformatoren verwendet. Hierbei sitzen dann die einzelnen feststehenden Stufenkontakte auf einem Kreisbogen an der Innenwand eines zylindrischen Ölgefäßes, und darunter oder darüber sitzt die als durchgehende Kontaktbahn ausgebildete Lastableitung, so daß die mit je einer Kontaktrolle sowohl an der Bahn der einzelnen Stufenkontakte wie auch an der durchgehenden Kontaktbahn entlangrollbare Kontaktbrücke jeweils je nach Stellung einen einzelnen Stufenkontakt mit der Lastableitung verbindet. Die Kontaktbrücke wird hierbei mittels eines Kontaktbrückenträgers aus Isolierstoff, in welchem sie gelagert ist und der von einem in der Zylindermitte angeordneten schrittweise drehbaren Isolierrohr mitgenommen wird, betätigt. Zwischen dem die Lagerstellen für die Kontaktbrücke enthaltenden Kontaktbrückenträger und einem Widerlager befinden sich die den Kontaktdruck erzeugenden Federn.These contact arrangements are used in load selectors for step transformers. The individual fixed step contacts then sit on a circular arc on the inner wall of a cylindrical oil vessel, and underneath or above the load conductor, designed as a continuous contact track, sits, so that each with a contact roller can be rolled along both the track of the individual step contacts and the continuous contact track Depending on the position, the contact bridge connects a single step contact with the load conductor. The contact bridge is in this case by means of a contact bridge carrier made of insulating material, in which it is mounted and which is carried along by a step-by-step rotating insulating tube arranged in the middle of the cylinder, operated. The springs producing the contact pressure are located between the contact bridge carrier containing the bearing points for the contact bridge and an abutment.

Eine Schwierigkeit bei derartigen Kontaktanordnungen liegt darin, daß die beiden Abrollbahnen an der Zylinderwand nie exakt parallel verlaufen und daß der Abrollumfang der beiden Bahnen nie exakt übereinstimmen kann, zumal die eine Abrollbahn eine Vielzahl von Einzelkontakten enthält, während die andere Abrollbahn als durchgehende Kontaktbahn ausgebildet ist. Die Anordnung von Einzelkontakten führt zwangsläufig zu Unebenheiten in der Abrollbahn. Die Kontaktbrücke muß sich also bei jedem Schaltschritt diesen Unebenheiten in der Abrollbahn der Einzelkontakte anpassen, wobei in einzelnen Bewegungsabschnitten von der an der durchgehenden Kontaktbahn rollenden Kontaktrolle ein Drehmoment auf die andere Kontaktrolle übertragen wird. Dies führt - wenn auch nur in geringem Maße - zu einer ständigen mechanischen Beanspruchung der flexiblen Leitung, indem diese wechselweise aufgeweitet und wieder eingedreht wird. Dies führt mitunter zum Einreißen einzelner Leiter der flexiblen Leitung, was bei mehrlagigen flexiblen Leitungen in der äußeren Lage in unmittelbarer Nachbarschaft der Einfaßstelle beginnt und letzten Endes sogar zum vollständigen Bruch der flexiblen Leitung führen kann.A difficulty with such contact arrangements is that the two rolling tracks on the cylinder wall never run exactly parallel and that the rolling circumference of the two tracks can never exactly match, especially since one rolling track contains a large number of individual contacts, while the other rolling track is designed as a continuous contact track . The arrangement of individual contacts inevitably leads to unevenness in the rolling path. The contact bridge must therefore adapt to these unevenness in the rolling path of the individual contacts in each switching step, with a torque being transmitted from the contact roller rolling on the continuous contact path to the other contact roller in individual movement sections. This leads - even if only to a small extent - to constant mechanical stress on the flexible line by alternately expanding and screwing it back in. This sometimes leads to tearing of individual conductors of the flexible line, which begins with multilayer flexible lines in the outer layer in the immediate vicinity of the mounting point and can even lead to the complete breakage of the flexible line in the end.

Aufgabe der Erfindung ist es, die eingangs genannte Kontaktanordnung zu verbessern und insbesondere die flexible Leitung zwischen den beiden Kontaktrollen mechanisch widerstandsfähiger zu machen. Diese Aufgabe wird erfindungsgemäß durch die im Kennzeichen des Patentanspruches 1 angegebene Mittel gelöst.The object of the invention is to improve the contact arrangement mentioned at the outset and, in particular, to make the flexible line between the two contact rollers mechanically more resistant. This object is achieved by the means specified in the characterizing part of patent claim 1.

Der mit der Erfindung erzielte Vorteil liegt insbesondere darin, daß sich die Kontaktrollen einzeln und für sich den Unregelmäßigkeiten der Abrollkurven anpassen können, daß also ihre Einzelbeweglichkeit im wesentlichen erhalten bleibt, und zwar ohne daß es hierbei zu einer nennenswerten mechanischen Beanspruchung der flexiblen Leitung kommt. Sobald beim Umschaltvorgang die eine Kontaktrolle den einen feststehenden Kontakt verläßt, wobei sich ihr Abrollradius erheblich aufweitet, kann von der an der durchgehenden Kontaktbahn rollenden Kontaktrolle mittels der Stahlseele ein Drehmoment auf die erstgenannte Kontaktrolle übertragen werden, ohne daß es dabei zu einem Verdrehen der flexiblen Leitung kommt. Die Stahlseele wird dabei zweckmäßig als biegsame Welle, z.B. nach Art einer Tachometerwelle, ausgebildet, die aus mindestens zwei gegensinnig gewickelten Lagen eines Federstahldrahtes besteht.The advantage achieved by the invention is, in particular, that the contact rollers can individually and individually adapt to the irregularities of the rolling curves, so that their individual mobility is essentially retained, without causing significant mechanical stress on the flexible line. As soon as one contact roller leaves the one fixed contact during the switching process, its rolling radius expanding considerably, a torque can be transmitted from the contact roller rolling on the continuous contact track by means of the steel core to the first-mentioned contact roller, without causing the flexible line to twist is coming. The steel core is expediently used as a flexible shaft, e.g. in the manner of a tachometer shaft, which consists of at least two oppositely wound layers of spring steel wire.

Ein Ausführungsbeispiel der Erfindung ist in der zugehörigen Zeichnung, die in Fig. 1 den Ausschnitt eines zylindrischen Ölgefäßes eines Lastwählers zeigt, dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention is shown in the accompanying drawing, which shows the detail of a cylindrical oil vessel of a load selector in FIG. 1, and is described in more detail below.

In der Zylinderwand 1 des Ölgefäßes des Lastwählers sitzen entlang einer oberen Bahn eine Vielzahl von feststehenden Stufenkontakten 2, 3, die außen mit einem Flachanschluß 4 zum Anschließen von Verbindungsleitungen versehen sind und die innen eine spezielle Kontaktfläche 5 besitzen. Unterhalb der Stufenkontakte 2, 3 ist eine durchgehende Kontaktbahn 6 vorgesehen, die als Lastableitung bzw. als Sternpunkt des Lastwählers dient. Mittels der Kontaktbrücke 7 kann wahlweise jeder Stufenkontakt 2 oder 3 mit der Lastableitung, also mit der Kontaktbahn 6, verbunden werden. Die Kontaktbrücke 7 besitzt eine obere und eine untere Kontaktrolle 8 bzw. 9, die beide in je einem Arm 10, 11 eines im einzelnen nicht näher dargestellten Kontaktbrückenträgers aus Isolierstoff gelagert sind und die über eine flexible Leitung 12 elektrisch leitend miteinander verbunden sind. Zentral in der flexiblen Leitung 12 befindet sich eine Stahlseele 14, die mit beiden Kontaktrollen 8, 9 fest verbunden ist. Die beiden Arme 10, 11 des nicht näher dargestellten Kontaktbrückenträgers sind gegeneinander beweglich. Auf diese Arme 11 und 12 wirken ferner die ebenfalls nicht näher dargestellten Kontaktdruckfedern auf übliche Weise ein. Der Kontaktbrückenträger wird - was ebenfalls im einzelnen nicht dargestellt ist - auf bekannte Weise mittels eines im Innern des Ölgefäßes gelagerten Antriebsrohresschrittweise bewegt, so daß - wie bereits gesagt - jeweils wahlweise ein feststehender Stufenkontakt 2 oder 3 mit der Kontaktbahn 6, welche die Lastableitung bildet, verbunden werden kann. Zum besseren Auf- oder Abrollen der Kontaktrolle 8 auf die bzw. von den Kontaktflächen 5 der feststehenden Stufenkontakte 2, 3 sind diese mit Anschrägungen 13 versehen. Den zwangsläufig vorhandenen Unebenheiten, insbesondere in der die einzelnen Stufenkontakte 2, 3 enthaltenden Abrollbahn, vermag sich die Kontaktbrücke 7 ohne weiteres anzupassen, da jede Kontaktrolle 8, 9 für sich in dem Arm 10 bzw. 11 des Kontaktbrückenträgers geführt ist und da beide Kontaktrollen 8, 9 infolge der flexiblen Leitung.12 und der nachgiebigen Stahlseele 14 auch gegeneinander beweglich sind. Ein Verkanten der Kontaktbrücke kann praktisch nicht erfolgen, denn jede Kontaktrolle 8, 9 kann sich ihrer jeweiligen Rollbahn 1, 5, 13 bzw. 6 einzeln anpassen. Andererseits kann es aber auch zu keiner nennenswerten Differenz in den Umlaufgeschwindigkeiten der beiden Kontaktrollen 8, 9 - was ja ein Aufweiten oder Zusammendrehen der flexiblen Leitung 12 nach sich ziehen würde - kommen, da mittels der Stahlseele eine Drehmomentübertragung von der einen Kontaktrolle, z.B. 9, auf die andere Kontaktrolle, z.B. 8, erfolgen kann. Die Stahlseele 14 ist mit ihrem Ende 141 zusammen mit dem Ende 121 der flexiblen Leitung fest mit der jeweiligen Kontaktrolle 8 bzw. 9 verbunden. Zweckmäßig wird die Stahlseele nach Art einer Tachometerwelle ausgebildet, die aus mindestens zwei gegensinnig gewickelten Lagen 143, 144 eines Federstahldrahtes besteht, siehe Fig. 2, die ausschnittsweise eine Stahlseele in vergrößerter Form darstellt.In the cylinder wall 1 of the oil tank of the load selector there are a plurality of fixed step contacts 2, 3 along an upper track, which are provided on the outside with a flat connection 4 for connecting connecting lines and which have a special contact surface 5 on the inside. A continuous contact track 6 is provided below the step contacts 2, 3 and serves as a load divider or as the star point of the load selector. By means of the contact bridge 7, each step contact 2 or 3 can optionally be connected to the load conductor, that is to say to the contact track 6. The contact bridge 7 has an upper and a lower contact roller 8 and 9, which are each supported in an arm 10, 11 of a contact bridge support made of insulating material, which is not shown in detail, and which are connected to one another in an electrically conductive manner via a flexible line 12. A steel core 14 is located centrally in the flexible line 12 and is firmly connected to both contact rollers 8, 9. The two arms 10, 11 of the contact bridge carrier, not shown, are movable relative to each other. The contact pressure springs, also not shown, act on these arms 11 and 12 in the usual way. The contact bridge support is moved - which is also not shown in detail - in a known manner by means of a drive tube mounted in the interior of the oil vessel, so that - as already mentioned - either a fixed step contact 2 or 3 with the contact track 6, which forms the load derivative, can be connected. For better rolling or rolling of the contact roller 8 onto or from the contact surfaces 5 of the fixed step contacts 2, 3, these are provided with bevels 13. The contact bridge 7 can easily adapt to the inevitable bumps, in particular in the rolling path containing the individual step contacts 2, 3, since each contact roll 8, 9 is guided individually in the arm 10 or 11 of the contact bridge carrier and since both contact rolls 8 , 9 are also movable relative to one another as a result of the flexible line 12 and the flexible steel core 14. The contact bridge cannot be tilted practically, since each contact roller 8, 9 can individually adapt to its respective runway 1, 5, 13 or 6. On the other hand, there can be no significant difference in the rotational speeds of the two contact rollers 8, 9 - which is a widening or twisting of the flexible Line 12 would entail - because the steel core can transmit torque from one contact roller, for example 9, to the other contact roller, for example 8. The steel core 14 is firmly connected at its end 141 together with the end 121 of the flexible line to the respective contact roller 8 or 9. The steel core is expediently designed in the manner of a tachometer shaft, which consists of at least two layers 143, 144 of spring steel wire wound in opposite directions, see FIG. 2, which shows sections of a steel core in enlarged form.

Claims (2)

1. Kontaktanordnung für Stufenschalter von Stufentransformatoren mit einer entlang zweier Kreisbögen abrollbaren Kontaktbrücke, die aus zwei über eine flexible Leitung axial miteinander verbundenen und in einem Kontaktbrückenträger gelagerten Kontaktrollen besteht, wobei jede Kontaktrolle in einem Arm des Kontaktbrückenträgers gelagert ist und die beiden Arme unabhängig voneinander in Richtung zu den Kreisbögen schwenkbar sind, und mit auf den Kreisbögen angeordneten feststehenden Kontakten, die sowohl als Einzelkontakte wie auch als Kontaktbahnen ausgeführt sind, wobei mittels der abrollbaren Kontaktbrücke jeweils eine Verbindung zwischen zwei Kontakten beider Kreisbögen herstellbar ist,
dadurch gekennzeichnet,
daß in der flexiblen Leitung (12) eine zentral zur Leitung angeordnete Stahlseele (14) vorgesehen ist, wobei jedes Ende (141) der Stahlseele mit einer Kontaktrolle (8 bzw. 9) fest verbunden ist.1.Contact arrangement for tap changers of tap transformers with a contact bridge which can be rolled along two circular arcs and which consists of two contact rollers axially connected to one another via a flexible cable and mounted in a contact bridge carrier, each contact roller being mounted in one arm of the contact bridge carrier and the two arms independent of one another Are pivotable in the direction of the arcs, and with fixed contacts arranged on the arcs, which are designed both as individual contacts and as contact tracks, a connection between two contacts of both arcs being able to be produced by means of the rollable contact bridge,
characterized,
that in the flexible line (12) a steel core (14) arranged centrally to the line is provided, each end (141) of the steel core being firmly connected to a contact roller (8 or 9). 2. Kontaktanordnung nach Anspruch 1,
dadurch gekennzeichnet,
daß die Stahlseele eine biegsame Welle ist, die aus mindestens zwei gegensinnig gewickelten Lagen (143, 144) eines Federstahldrahtes besteht.2. Contact arrangement according to claim 1,
characterized,
that the steel core is a flexible shaft, which consists of at least two oppositely wound layers (143, 144) of a spring steel wire.
EP83101804A 1982-03-05 1983-02-24 Contact arrangement for tap-changers of regulating transformers Expired EP0088296B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3207894 1982-03-05
DE3207894A DE3207894C2 (en) 1982-03-05 1982-03-05 Contact arrangement for step switches of step transformers

Publications (2)

Publication Number Publication Date
EP0088296A1 true EP0088296A1 (en) 1983-09-14
EP0088296B1 EP0088296B1 (en) 1985-08-28

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ID=6157369

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83101804A Expired EP0088296B1 (en) 1982-03-05 1983-02-24 Contact arrangement for tap-changers of regulating transformers

Country Status (6)

Country Link
EP (1) EP0088296B1 (en)
JP (1) JPS58162010A (en)
KR (1) KR870001109Y1 (en)
DE (1) DE3207894C2 (en)
ES (1) ES520311A0 (en)
IN (1) IN158930B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2603735A1 (en) * 1986-09-06 1988-03-11 Reinhausen Kg Maschf Roller disc contacts for tap changer selector switch
WO2003032345A1 (en) * 2001-10-10 2003-04-17 Sonionmicrotronic A/S A multifunctional switch
WO2011079860A1 (en) * 2009-12-29 2011-07-07 Abb Technology Ltd A contact unit for a high-voltage device
WO2014127995A1 (en) 2013-02-20 2014-08-28 Abb Technology Ltd Tap changer contact system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0646612B2 (en) * 1984-06-11 1994-06-15 三菱電機株式会社 Tap changer converter
JPH0713206Y2 (en) * 1987-01-14 1995-03-29 株式会社明電舎 Tap selector
BR112013016129A2 (en) 2011-01-20 2018-07-10 Reinhausen Maschf Scheubeck load selector-type tap-changer for uninterrupted switching between winding tappings of a step-down transformer
DE202011109824U1 (en) 2011-01-20 2012-04-03 Maschinenfabrik Reinhausen Gmbh step switch

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2835253A1 (en) * 1977-08-19 1979-02-22 December 4 Drotmuevek STEEL ALUMINUM ROPE, ESPECIALLY FOR ELECTRICITY CABLE AND PROCESS FOR MANUFACTURING SUCH ROPES
US4185473A (en) * 1978-06-21 1980-01-29 Pennwalt Corporation Balanced torsional deflection of flexible shafts in either direction of rotation
DE2910161A1 (en) * 1979-03-15 1980-09-18 Reinhausen Maschf Scheubeck CONTACT ARRANGEMENT FOR TAPE SWITCHES OF TAPE TRANSFORMERS

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT169512B (en) * 1949-09-26 1951-11-26 Felten & Guilleaume Carlswerk Electric conductor for high voltage overhead lines
DE1881565U (en) * 1963-08-10 1963-10-31 Rheinische Draht Und Kabelwerk CABLES FOR THE TRAIN CONTROL.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2835253A1 (en) * 1977-08-19 1979-02-22 December 4 Drotmuevek STEEL ALUMINUM ROPE, ESPECIALLY FOR ELECTRICITY CABLE AND PROCESS FOR MANUFACTURING SUCH ROPES
US4185473A (en) * 1978-06-21 1980-01-29 Pennwalt Corporation Balanced torsional deflection of flexible shafts in either direction of rotation
DE2910161A1 (en) * 1979-03-15 1980-09-18 Reinhausen Maschf Scheubeck CONTACT ARRANGEMENT FOR TAPE SWITCHES OF TAPE TRANSFORMERS

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2603735A1 (en) * 1986-09-06 1988-03-11 Reinhausen Kg Maschf Roller disc contacts for tap changer selector switch
WO2003032345A1 (en) * 2001-10-10 2003-04-17 Sonionmicrotronic A/S A multifunctional switch
US6919519B2 (en) 2001-10-10 2005-07-19 Sonion Roskilde A/S Multifunctional switch
WO2011079860A1 (en) * 2009-12-29 2011-07-07 Abb Technology Ltd A contact unit for a high-voltage device
WO2014127995A1 (en) 2013-02-20 2014-08-28 Abb Technology Ltd Tap changer contact system
CN105393323A (en) * 2013-02-20 2016-03-09 Abb技术有限公司 Tap changer contact system
CN105393323B (en) * 2013-02-20 2018-09-07 Abb瑞士股份有限公司 tap changer contact system

Also Published As

Publication number Publication date
KR870001109Y1 (en) 1987-03-23
ES8401672A1 (en) 1983-12-01
JPH0259605B2 (en) 1990-12-13
ES520311A0 (en) 1983-12-01
JPS58162010A (en) 1983-09-26
EP0088296B1 (en) 1985-08-28
IN158930B (en) 1987-02-21
DE3207894C2 (en) 1986-03-13
DE3207894A1 (en) 1983-09-15
KR840004210U (en) 1984-08-25

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