EP1854112B1 - Tap-changer - Google Patents

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Publication number
EP1854112B1
EP1854112B1 EP05806362A EP05806362A EP1854112B1 EP 1854112 B1 EP1854112 B1 EP 1854112B1 EP 05806362 A EP05806362 A EP 05806362A EP 05806362 A EP05806362 A EP 05806362A EP 1854112 B1 EP1854112 B1 EP 1854112B1
Authority
EP
European Patent Office
Prior art keywords
drive
hand wheel
drive shaft
flange
shaft
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
EP05806362A
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German (de)
French (fr)
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EP1854112A1 (en
Inventor
Reinhold Baertl
Albert Schmidbauer
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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Application filed by Maschinenfabrik Reinhausen GmbH, Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG filed Critical Maschinenfabrik Reinhausen GmbH
Publication of EP1854112A1 publication Critical patent/EP1854112A1/en
Application granted granted Critical
Publication of EP1854112B1 publication Critical patent/EP1854112B1/en
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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
    • 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
    • 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
    • H01H3/44—Driving mechanisms, i.e. for transmitting driving force to the contacts using Geneva movement

Definitions

  • the invention relates to a diverter for powerless switching between different winding taps of a tapped transformer for voltage adjustment.
  • Such a diverter is from the company publication of the applicant "diverter DEETAP ® U, Operating Instructions BA 249 / 02DE” Print Imprint 0204/200 already known.
  • This known diverter operates on the principle of Drehumstellers. It has an insulating scaffold on which in each case circularly fixed contacts are arranged in a plurality of horizontal planes.
  • a rotatable Isolierschaltwelle Inside this lsolierstoffgerüstes is a rotatable Isolierschaltwelle which carries at least one switching contact in each horizontal plane through which the corresponding fixed contacts depending on the respective basic circuit, for. B. as a star point taps changer, single-center diverter, double-center diverter, series-parallel diverter, star-delta diverter, are connected in different ways.
  • Adjusting the diverter from one operating position to another, d. H. the switching between different winding taps of the connected tapped transformer is, when the transformer is switched off, d. H. in the current and de-energized state, effected by turning the Isolierschaltwelle.
  • the rotation of the Isolierschaltwelle usually takes place on a step gear to which an electric motor drive or a mechanical manual drive acts, as will be explained in more detail below.
  • the upper end of the known Umstellers forms the Umstellerkopf with the attached upper gear and the underlying Maltese gear to drive the Isolierschaltwelle.
  • a shaft coming from the respective motor drive or manual drive is connected; the rotational movement is transmitted in the upper gear stage via a worm gear on a vertically mounted in the Umstellerkopf drive shaft, which in turn has at its lower end a Maltese crank.
  • the Maltese crank engages in a Maltese wheel, which is arranged at the upper end fixed to the Isolierschaltwelle.
  • the object of the invention is therefore to provide a generic diverter, which avoids these disadvantages and in which all described operating possibilities of Isolierschaltwelle with a single Umstellerkopf be realized.
  • the diverter according to the invention has only a single Umstellerkopf with a head flange on which either an upper gear stage for operation by motor or hand drive or a Handradantriebsflansch for operation by a handwheel or by means of a hexagonal adapter can be attached.
  • the drive shaft which, as described, carries at its lower end the Maltese crank, is identical in all forms of actuation.
  • a Umstellerkopf 1 which has a head flange 2 with a plurality of concentrically arranged fastening threaded bores 3.
  • an upper gear 4 is mounted on the head flange 2.
  • This upper gear stage 4 has, in a manner known per se, a worm wheel 5, which is connected to the shaft, not shown, coming from the motor or manual drive.
  • the worm wheel 5 acts on a gear 6 which is fixed on the vertically extending drive shaft 7.
  • the rotation is ensured by a spring / groove connection 8.
  • the drive shaft 7 is mounted in the head flange 2.
  • a Maltese crank 9 is attached; to prevent rotation serves another Spring / groove connection 10.
  • the Maltese crank 9 acts on a Geneva wheel 11, which is fastened with its flange 12 at the upper part of the Isolierschaltwelle not shown here.
  • the upper gear 4 is closed by a cover 13.
  • the drive of the diverter is thus effected by a spatially separated motor drive or a manual drive, wherein the rotational movement is transmitted by a corresponding wave train on the worm wheel 5 of the upper gear 4.
  • FIG. 2 the components of an alternatively usable handwheel drive are shown.
  • a Handradantriebsflansch 14 is provided, which is also on the head flange 2 - not shown fastened here and in which the drive shaft 7 is mounted.
  • the Handradantriebsflansch 14 has an upper cover 15 through which the drive shaft 7 is passed.
  • a handwheel 16 is fixed to the drive shaft 7.
  • the attachment is made by a thread 17 on the front side of the drive shaft 7; by means of a screw 18, the handwheel 16 is attached;
  • a spring / groove connection 19 is provided to prevent rotation, in their spatial position of the spring / groove connection 8 in the FIG. 1 equivalent.
  • a security lock 20 may be provided.
  • FIG. 3 an alternative hex drive is shown. He in turn has the Handradantriebsflansch 14, in which the drive shaft 7 is mounted. Instead of a handwheel here, however, above the cover 15, a hexagonal adapter 21 is in turn fastened by means of a screw 22 in the thread 17 of the drive shaft 7.
  • FIG. 4 is again the entire Umstellerkopf a diverter according to the invention, shown here with mounted handwheel drive. It can be seen that the head flange 2 as well as the entire Umstellerkopf 1 completely identical to the in FIG. 1 explained embodiment with upper gear stage. Instead of the upper gear stage here the Handwheelantriebsflansch 14 is mounted on the head flange 2.
  • the handwheel 16 acts on the drive shaft 7 and arranged at the lower end Maltese crank 9; this in turn on the Geneva wheel 11 and thus the Isolierschaltwelle.
  • an additionally arranged, known switching monitoring device 23 is indicated, which, however, is not relevant to the invention and is therefore not explained in any more detail.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Gear Transmission (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Steering Controls (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Electromechanical Clocks (AREA)
  • Power Steering Mechanism (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Discharge Heating (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The converter has circular contacts arranged on an insulating material frame. A rotatable insulating switch shaft carries switch contacts which can be switched by the corresponding contact. The converter has a head (1) with a Malteser drive (9,11) for the shaft . The drive is driven by a drive shaft (7) mounted in a threaded flange (2). A hand wheel drive has a flange to be screwed to the head flange and which has a cover through which the drive shaft extends. A hand wheel or allen key adapter is fastened to the free end of the drive shaft.

Description

Die Erfindung betrifft einen Umsteller zur leistungslosen Umschaltung zwischen verschiedenen Wicklungsanzapfungen eines Stufentransformators zur Spannungseinstellung.The invention relates to a diverter for powerless switching between different winding taps of a tapped transformer for voltage adjustment.

Ein solcher Umsteller ist aus der Firmendruckschrift der Anmelderin "Umsteller DEETAP® U, Betriebsanleitung BA 249/02de" Druckimpressum 0204/200 bereits bekannt. Dieser bekannte Umsteller arbeitet nach dem Prinzip des Drehumstellers. Er weist ein Isolierstoffgerüst auf, an dem in mehreren horizontalen Ebenen jeweils kreisförmig feste Kontakte angeordnet sind. Im Inneren dieses lsolierstoffgerüstes befindet sich eine drehbare Isolierschaltwelle, die in jeder horizontalen Ebene mindestens einen Schaltkontakt trägt, durch den die korrespondierenden festen Kontakte abhängig von der jeweiligen Grundschaltung, z. B. als Sternpunkt-Anzapfumsteller, Einfach-Mittenumsteller, Doppel-Mittenumsteller, Reihen-Parallel-Umsteller, Stern-Dreieck-Umsteller, auf unterschiedliche Weise beschaltbar sind.Such a diverter is from the company publication of the applicant "diverter DEETAP ® U, Operating Instructions BA 249 / 02DE" Print Imprint 0204/200 already known. This known diverter operates on the principle of Drehumstellers. It has an insulating scaffold on which in each case circularly fixed contacts are arranged in a plurality of horizontal planes. Inside this lsolierstoffgerüstes is a rotatable Isolierschaltwelle which carries at least one switching contact in each horizontal plane through which the corresponding fixed contacts depending on the respective basic circuit, for. B. as a star point taps changer, single-center diverter, double-center diverter, series-parallel diverter, star-delta diverter, are connected in different ways.

Das Verstellen des Umstellers von einer Betriebsstellung in eine andere, d. h. das Umschalten zwischen verschiedenen Wicklungsanzapfungen des angeschlossenen Stufentransformators, wird bei abgeschaltetem Transformator, d. h. im strom- und spannungslosen Zustand, durch Drehen der Isolierschaltwelle bewirkt. Die Drehung der Isolierschaltwelle erfolgt üblicherweise auf ein Schrittgetriebe, auf das ein elektrischer Motorantrieb oder auch ein mechanischer Handantrieb wirkt, wie nachfolgend noch näher erläutert werden soll.Adjusting the diverter from one operating position to another, d. H. the switching between different winding taps of the connected tapped transformer is, when the transformer is switched off, d. H. in the current and de-energized state, effected by turning the Isolierschaltwelle. The rotation of the Isolierschaltwelle usually takes place on a step gear to which an electric motor drive or a mechanical manual drive acts, as will be explained in more detail below.

Den oberen Abschluss des bekannten Umstellers bildet der Umstellerkopf mit der angebauten oberen Getriebestufe und dem darunter befindlichen Maltesergetriebe zum Antrieb der Isolierschaltwelle. An eine äußere Wellenkupplung an der oberen Getriebestufe wird eine vom jeweiligen Motorantrieb oder Handantrieb kommende Welle angeschlossen; deren Drehbewegung wird in der oberen Getriebestufe über ein Schneckengetriebe auf eine senkrecht im Umstellerkopf gelagerte Antriebswelle übertragen, die wiederum an ihrem unteren Ende eine Malteserkurbel aufweist. Die Malteserkurbel greift in ein Malteserrad, ein, das am oberen Ende fest an der Isolierschaltwelle angeordnet ist.The upper end of the known Umstellers forms the Umstellerkopf with the attached upper gear and the underlying Maltese gear to drive the Isolierschaltwelle. To an outer shaft coupling at the upper gear stage, a shaft coming from the respective motor drive or manual drive is connected; the rotational movement is transmitted in the upper gear stage via a worm gear on a vertically mounted in the Umstellerkopf drive shaft, which in turn has at its lower end a Maltese crank. The Maltese crank engages in a Maltese wheel, which is arranged at the upper end fixed to the Isolierschaltwelle.

Eine Umstellerschaltung, d. h. eine Drehung der Isolierschaltwelle um einen bestimmten Winkel zum jeweils benachbarten festen Kontakt, entspricht damit einer bestimmten, typenabhängigen Zahl von Umdrehungen der antreibenden Welle von Motor- oder Handantrieb.A diverter circuit, d. H. a rotation of the Isolierschaltwelle by a certain angle to the respective adjacent fixed contact, thus corresponds to a specific, type-dependent number of revolutions of the driving shaft of motor or hand drive.

Als Sonderausführung besitzen bestimmte Varianten des bekannten Umstellers statt dessen eine direkte mechanische Betätigungsmöglichkeit der Isolierschaltwelle durch ein mit dieser in Verbindung stehendes, zentrisch auf dem Umstellerkopf angeordnetes Handrad oder einen Sechskant in Verbindung mit einem Aufsteckschlüssel. Wegen der direkten zentrischen Verbindung ist für diese Ausführungen ein besonderer Umstellerkopf erforderlich. Dies führt zu einer unerwünschten Variantenvielfalt notwendiger Teile eines ansonsten identischen Umstellers.As a special version certain variants of the known Umstellers instead have a direct mechanical actuation of Isolierschaltwelle by an associated with this, centrally arranged on the Umstellerkopf handwheel or a hexagon in conjunction with a Aufsteckschlüssel. Because of the direct centric connection is for this Versions a special Umstellerkopf required. This leads to an undesirable variant variety of necessary parts of an otherwise identical diverter.

Aufgabe der Erfindung ist es demnach, einen gattungsgemäßen Umsteller anzugeben, der diese Nachteile vermeidet und bei dem alle beschriebenen Betätigungsmöglichkeiten der Isolierschaltwelle mit einem einzigen Umstellerkopf realisierbar sind.The object of the invention is therefore to provide a generic diverter, which avoids these disadvantages and in which all described operating possibilities of Isolierschaltwelle with a single Umstellerkopf be realized.

Diese Aufgabe wird durch einen Umsteller mit den Merkmalen des ersten Patentanspruches gelöst. Die Unteransprüche betreffen besonders vorteilhafte Weiterbildungen der Erfindung.This object is achieved by a diverter with the features of the first claim. The subclaims relate to particularly advantageous developments of the invention.

Der erfindungsgemäße Umsteller besitzt nur einen einzigen Umstellerkopf mit einem Kopfflansch, an dem wahlweise eine obere Getriebestufe zur Betätigung durch Motor- oder Handantrieb oder auch ein Handradantriebsflansch zur Betätigung durch ein Handrad oder mittels eines Sechskantadapters befestigt werden können. Auch die Antriebswelle, die, wie beschrieben, an ihrem unteren Ende die Malteserkurbel trägt, ist bei allen Betätigungsformen identisch.The diverter according to the invention has only a single Umstellerkopf with a head flange on which either an upper gear stage for operation by motor or hand drive or a Handradantriebsflansch for operation by a handwheel or by means of a hexagonal adapter can be attached. Also, the drive shaft, which, as described, carries at its lower end the Maltese crank, is identical in all forms of actuation.

Die Erfindung soll nachfolgend an Hand von Ausführungsbeispielen noch näher erläutert werden. Es zeigen:

Fig. 1
einen Teil des Umstellerkopfes eines erfindungsgemäßen Umstellers mit einer auf dem Kopfflansch montierten oberen Getriebestufe
Fig. 2
einen Handradantrieb mit einem Handradantriebsflansch, der anstelle der oberen Getriebestufe montierbar ist
Fig. 3
einen Sechskant-Antrieb mit wiederum einem Handradantriebsflansch, der anstelle der oberen Getriebestufe montierbar ist
Fig. 4
einen Querschnitt des kompletten Umstellerkopfes eines erfindungsgemäßen Umstellers, hier mit montiertem Handradantrieb am Kopfflansch.
The invention will be explained in more detail below with reference to exemplary embodiments. Show it:
Fig. 1
a part of the Umstellerkopfes a diverter according to the invention with an upper gear stage mounted on the head flange
Fig. 2
a handwheel drive with a Handradantriebsflansch, which is mounted in place of the upper gear stage
Fig. 3
a hex drive with turn a Handradantriebsflansch, which is mounted in place of the upper gear stage
Fig. 4
a cross section of the complete Umstellerkopfes a diverter according to the invention, here with mounted handwheel drive on the head flange.

Zunächst soll die Figur 1 erläutert werden. Hier ist ein Umstellerkopf 1 gezeigt, der einen Kopfflansch 2 mit mehreren, konzentrisch angeordneten Befestigungsgewindebohrungen 3 aufweist. Auf den Kopfflansch 2 ist eine obere Getriebestufe 4 montiert. Diese obere Getriebestufe 4 weist auf an sich bekannte Weise ein Schneckenrad 5 auf, das mit der nicht dargestellten, vom Motor- bzw. Handantrieb kommenden Welle in Verbindung steht. Das Schneckenrad 5 wirkt auf ein Zahnrad 6, das auf der vertikal verlaufenden Antriebswelle 7 befestigt ist. Die Drehsicherung erfolgt durch eine Feder/Nut-Verbindung 8. Die Antriebswelle 7 ist im Kopfflansch 2 gelagert. Am unteren Ende ist an der Antriebswelle 7 eine Malteserkurbel 9 befestigt; zur Verdrehsicherung dient eine weitere Feder/Nut-Verbindung 10. Die Malteserkurbel 9 wirkt auf ein Malteserrad 11, das mit seinem Flansch 12 am oberen Teil der hier nicht dargestellten Isolierschaltwelle befestigt ist. Nach oben wird die obere Getriebestufe 4 durch eine Abdeckung 13 abgeschlossen. Bei der in dieser Figur dargestellten Ausführungsform erfolgt der Antrieb des Umstellers also durch einen räumlich getrennt angeordneten Motorantrieb oder auch einen Handantrieb, wobei die Drehbewegung durch einen entsprechenden Wellenzug auf das Schneckenrad 5 der oberen Getriebestufe 4 übertragen wird.First, the FIG. 1 be explained. Here, a Umstellerkopf 1 is shown, which has a head flange 2 with a plurality of concentrically arranged fastening threaded bores 3. On the head flange 2, an upper gear 4 is mounted. This upper gear stage 4 has, in a manner known per se, a worm wheel 5, which is connected to the shaft, not shown, coming from the motor or manual drive. The worm wheel 5 acts on a gear 6 which is fixed on the vertically extending drive shaft 7. The rotation is ensured by a spring / groove connection 8. The drive shaft 7 is mounted in the head flange 2. At the lower end of the drive shaft 7 a Maltese crank 9 is attached; to prevent rotation serves another Spring / groove connection 10. The Maltese crank 9 acts on a Geneva wheel 11, which is fastened with its flange 12 at the upper part of the Isolierschaltwelle not shown here. At the top, the upper gear 4 is closed by a cover 13. In the embodiment shown in this figure, the drive of the diverter is thus effected by a spatially separated motor drive or a manual drive, wherein the rotational movement is transmitted by a corresponding wave train on the worm wheel 5 of the upper gear 4.

In Figur 2 sind die Komponenten eines alternativ verwendbaren Handradantriebes gezeigt. Dazu ist ein Handradantriebsflansch 14 vorgesehen, der ebenfalls auf dem Kopfflansch 2 - hier nicht gezeigtbefestigbar ist und in dem die Antriebswelle 7 gelagert ist. Der Handradantriebsflansch 14 besitzt eine obere Abdeckung 15 durch die die Antriebswelle 7 hindurchgeführt ist. Am oberen Ende ist ein Handrad 16 an der Antriebswelle 7 befestigt. Die Befestigung erfolgt durch ein Gewinde 17 an der Stirnseite der Antriebswelle 7; mittels einer Schraube 18 ist das Handrad 16 befestigt; auch hier ist zur Verdrehsicherung eine Feder/Nut-Verbindung 19 vorgesehen, die in ihrer räumlichen Lage der Feder/Nut-Verbindung 8 in der Figur 1 entspricht. Um ein unbeabsichtigtes Verstellen zu verhindern, kann ein Sicherheitsschloss 20 vorgesehen werden.In FIG. 2 the components of an alternatively usable handwheel drive are shown. For this purpose, a Handradantriebsflansch 14 is provided, which is also on the head flange 2 - not shown fastened here and in which the drive shaft 7 is mounted. The Handradantriebsflansch 14 has an upper cover 15 through which the drive shaft 7 is passed. At the upper end of a handwheel 16 is fixed to the drive shaft 7. The attachment is made by a thread 17 on the front side of the drive shaft 7; by means of a screw 18, the handwheel 16 is attached; Here too, a spring / groove connection 19 is provided to prevent rotation, in their spatial position of the spring / groove connection 8 in the FIG. 1 equivalent. To prevent unintentional adjustment, a security lock 20 may be provided.

In Figur 3 ist ein alternativ verwendbarer Sechskantantrieb gezeigt. Er besitzt wiederum den Handradantriebsflansch 14, in dem die Antriebswelle 7 gelagert ist. Statt eines Handrades ist hier jedoch oberhalb der Abdeckung 15 ein Sechskantadapter 21 wiederum mittels einer Schraube 22 im Gewinde 17 der Antriebswelle 7 befestigt.In FIG. 3 an alternative hex drive is shown. He in turn has the Handradantriebsflansch 14, in which the drive shaft 7 is mounted. Instead of a handwheel here, however, above the cover 15, a hexagonal adapter 21 is in turn fastened by means of a screw 22 in the thread 17 of the drive shaft 7.

In Figur 4 ist noch einmal der gesamte Umstellerkopf eines erfindungsgemäßen Umstellers, hier mit montiertem Handradantrieb gezeigt. Es ist zu sehen, dass der Kopfflansch 2 wie auch der gesamte Umstellerkopf 1 völlig identisch zu der in Figur 1 erläuterten Ausführung mit oberer Getriebestufe sind. Statt der oberen Getriebestufe ist hier auf dem Kopfflansch 2 der Handradantriebsflansch 14 montiert. Das Handrad 16 wirkt auf die Antriebswelle 7 und die am unteren Ende angeordnete Malteserkurbel 9; diese wiederum auf das Malteserrad 11 und damit die Isolierschaltwelle. In dieser Darstellung ist der Vollständigkeit halber noch eine zusätzlich angeordnete, bekannte Schaltüberwachungseinrichtung 23 angedeutet, die für die Erfindung jedoch nicht von Belang ist und deshalb nicht näher erläutert wird.In FIG. 4 is again the entire Umstellerkopf a diverter according to the invention, shown here with mounted handwheel drive. It can be seen that the head flange 2 as well as the entire Umstellerkopf 1 completely identical to the in FIG. 1 explained embodiment with upper gear stage. Instead of the upper gear stage here the Handwheelantriebsflansch 14 is mounted on the head flange 2. The handwheel 16 acts on the drive shaft 7 and arranged at the lower end Maltese crank 9; this in turn on the Geneva wheel 11 and thus the Isolierschaltwelle. In this illustration, for the sake of completeness, an additionally arranged, known switching monitoring device 23 is indicated, which, however, is not relevant to the invention and is therefore not explained in any more detail.

Es ist zu sehen, dass beim erfindungsgemäßen Umsteller also unabhängig davon, ob der Antrieb über einen Motor- bzw. Handantrieb und eine entsprechende obere Getriebestufe oder einen Handradantrieb oder auch einen Sechskantantrieb erfolgt, stets der gleiche Übertragungsmechanismus der Drehbewegung erfolgt: Von der Antriebswelle 7 über die Malteserkurbel 9 auf das Malteserrad 11, von dort auf die Isolierschaltwelle. Das hat zur Folge, dass bei jeder Art der Betätigung die gleiche Zahl von Umdrehungen erforderlich ist, um eine Betätigung des Umstellers zu vollziehen. Es ist zu sehen, dass bei dem erfindungsgemäßen Umsteller die Typenvielfalt ganz wesentlich reduziert worden ist; der Kopfflansch 2 hat die Funktion eines Adapters, auf dem wahlweise obere Getriebestufe 4 oder Handradantriebsflansch 14 montiert werden können, ohne dass es außer des Handrades 16 und des Sechskantadapters 21 selbst weiterer unterschiedlicher Bauteile bedarf.It can be seen that in the diverter according to the invention thus regardless of whether the drive via a motor or hand drive and a corresponding upper gear stage or a handwheel drive or a hexagonal drive, always the same transmission mechanism of the rotational movement takes place: From the drive shaft 7 via the Maltese crank 9 on the Geneva wheel 11, from there on the Isolierschaltwelle. As a result, each type of operation requires the same number of revolutions to effect actuation of the diverter. It can be seen that in the diverter according to the invention the type diversity has been substantially reduced; the head flange 2 has the function of an adapter, can be mounted on the optional upper gear 4 or Handradantriebsflansch 14, without the need for further different components apart from the handwheel 16 and the hexagonal adapter 21 itself.

Claims (2)

  1. Off-circuit tap changer for non-powered change-over between different winding taps of a tapped transformer for voltage adjustment,
    wherein respective circularly fixed contacts are disposed on an insulating frame in at least one horizontal plane,
    wherein a rotatable insulating switching shaft is located on the inside and, in each horizontal plane, has at least one switching contact by which the corresponding fixed contacts can be connected,
    wherein the off-circuit tap changer is terminated at the top by an off-circuit tap changer head (1) which has a Maltese cross gear (9, 11) for driving the insulating switching shaft,
    wherein the Maltese cross gear (9, 11) itself can be driven by a drive shaft (7) which with its free end protrudes vertically upwards out of the off-circuit tap changer head (1) and is mounted in a head flange (2) which in turn has a plurality of threaded fixing holes (3),
    characterised in that on the head flange (2) an upper gear unit (4) which is known per se or a hand wheel drive can be selectively fixed to the threaded fixing holes (3),
    the hand wheel drive has a hand wheel drive flange (14) which can be screwed to the head flange (2),
    the hand wheel drive flange (14) has an upper cover (15) through which the drive shaft (7) is passed,
    and that a hand wheel (16) or a hexagonal adapter (21) are fixed to the upper free end of the drive shaft (7).
  2. Off-circuit tap changer as claimed in claim 1,
    characterised in that the hand wheel (16) or the hexagonal adapter (21) are fixed by means of a screw (18, 22) which is screwed into a thread disposed on the end face of the drive shaft (7).
EP05806362A 2005-03-01 2005-11-17 Tap-changer Active EP1854112B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005009193A DE102005009193B3 (en) 2005-03-01 2005-03-01 Converter for switching between different coil terminals of a stepper transformer for adjusting voltage having a shaft driven by a hand wheel or an allen key
PCT/EP2005/012311 WO2006092164A1 (en) 2005-03-01 2005-11-17 Tap-changer

Publications (2)

Publication Number Publication Date
EP1854112A1 EP1854112A1 (en) 2007-11-14
EP1854112B1 true EP1854112B1 (en) 2010-02-10

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Application Number Title Priority Date Filing Date
EP05806362A Active EP1854112B1 (en) 2005-03-01 2005-11-17 Tap-changer

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US (1) US7622688B2 (en)
EP (1) EP1854112B1 (en)
JP (1) JP2008532303A (en)
KR (1) KR20070108553A (en)
CN (1) CN100561622C (en)
AT (1) ATE457519T1 (en)
CZ (1) CZ301929B6 (en)
DE (2) DE102005009193B3 (en)
ES (1) ES2339578T3 (en)
HK (1) HK1108513A1 (en)
RU (1) RU2385514C2 (en)
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CN101409148B (en) * 2008-06-24 2012-03-14 上海华明电力设备制造有限公司 Internal groove wheel drive mechanism in on-load tap-changer
DE102010020130A1 (en) * 2010-05-11 2011-11-17 Maschinenfabrik Reinhausen Gmbh Diverter switch for a tap changer
DE102010020139A1 (en) * 2010-05-11 2011-11-17 Maschinenfabrik Reinhausen Gmbh Transformer Bushing
DE202010016211U1 (en) * 2010-11-30 2012-03-01 Maschinenfabrik Reinhausen Gmbh diverter
DE102011104885A1 (en) 2011-06-18 2012-12-20 Maschinenfabrik Reinhausen Gmbh hand drive
DE102011112365B3 (en) * 2011-09-02 2012-12-27 Maschinenfabrik Reinhausen Gmbh Tap-changer with worm gear
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CZ2007589A3 (en) 2007-10-31
DE102005009193B3 (en) 2006-08-17
WO2006092164A1 (en) 2006-09-08
JP2008532303A (en) 2008-08-14
CN101133469A (en) 2008-02-27
ATE457519T1 (en) 2010-02-15
US7622688B2 (en) 2009-11-24
US20080169178A1 (en) 2008-07-17
KR20070108553A (en) 2007-11-12
ES2339578T3 (en) 2010-05-21
EP1854112A1 (en) 2007-11-14
HK1108513A1 (en) 2008-05-09
RU2007136111A (en) 2009-04-10
RU2385514C2 (en) 2010-03-27
CN100561622C (en) 2009-11-18
DE502005009015D1 (en) 2010-03-25
CZ301929B6 (en) 2010-08-04
UA87894C2 (en) 2009-08-25

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