EP1205952B1 - Commutateur de réglage en charge pour commutateur à gradins - Google Patents

Commutateur de réglage en charge pour commutateur à gradins Download PDF

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Publication number
EP1205952B1
EP1205952B1 EP01122903A EP01122903A EP1205952B1 EP 1205952 B1 EP1205952 B1 EP 1205952B1 EP 01122903 A EP01122903 A EP 01122903A EP 01122903 A EP01122903 A EP 01122903A EP 1205952 B1 EP1205952 B1 EP 1205952B1
Authority
EP
European Patent Office
Prior art keywords
mounting plate
main contact
permanent main
centring
load
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01122903A
Other languages
German (de)
English (en)
Other versions
EP1205952A2 (fr
EP1205952A3 (fr
Inventor
Günter Dipl.-Ing. Kloth (FH)
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 EP1205952A2 publication Critical patent/EP1205952A2/fr
Publication of EP1205952A3 publication Critical patent/EP1205952A3/fr
Application granted granted Critical
Publication of EP1205952B1 publication Critical patent/EP1205952B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H9/0044—Casings; Mountings; Disposition in transformer housing

Definitions

  • the invention relates to a diverter switch for a tap changer with the features of the first claim.
  • a diverter switch is known from the documents "tap-changer type R and RM - Inspection Manual” and “tap-changer type R and RM - Technical Data" of the applicant.
  • Tap changers are known to be used for uninterrupted switching between different winding taps of a tapped transformer and thus for voltage regulation. They usually consist of a selector for powerless preselection of those winding tap of the tapped transformer to be switched to, and a diverter switch for the actual uninterrupted switching from the previously connected winding tap to the new, preselected winding tap.
  • the diverter switch has the necessary for such an uninterrupted, fast switching components, in particular a force storage device, switching contacts - this may be mechanical switching contacts, vacuum switching cells or thyristors -, and means for actuating the switch contacts in a predetermined switching sequence at each switching.
  • the known diverter switch has its own oil tank, usually in the form of a closed insulating cylinder in which, separated from the surrounding oil of the transformer, all the above components are. Below the diverter switch, the selector is located, which is located in the transformer oil. All components or elements of the diverter switch are designed as a complete diverter switch insert inside the separate oil pan, which can be completely pulled out of the oil pan, for inspection or maintenance, without the entire tap changer from the transformer tank in which it is mounted is, should be removed.
  • the known diverter switch insert has in its upper part a support cylinder made of insulating material which extends concentrically in the installed state within its own oil vessel. The upper end of the support cylinder forms a support plate. At the bottom of the support cylinder, the assemblies of the diverter switch described above are attached, namely the energy storage, including the switching contacts to be actuated, again below in a known manner switching resistors or varistors.
  • the support plate of the support cylinder is mounted in the assembled state in a corresponding flange on the tap changer head; upwards is a conclusion by the tap changer cover.
  • the lid of the tap changer is first removed, then the fastening screws are released, with which the support plate is fixed to the flange, and then the entire diverter switch insert can be lifted to provided for this purpose eyelets on the support plate ,
  • the described support cylinder is therefore an important component of the known diverter switch, since the entire diverter switch insert hangs on this support cylinder.
  • a diverter switch for a tap changer known having a surrounding him separate oil vessel, in the wall and these are arranged penetrating in horizontal planes for each electrical phase to be switched electrical connection contacts. These connection contacts are used for the load discharge on the one hand and the two sides A and B of the diverter switch, between which switches and the connection to the load dissipation is made.
  • a diverter switch insert is provided, which has a power storage, electrical switching means and switching resistors.
  • a horizontally extending upper bearing plate which is designed as a base plate, is also provided, which carries all the components of the diverter switch insert. This upper bearing plate is frictionally secured on its periphery on a supporting flange of the transformer housing.
  • FR 901313 A From the FR 901313 A is another tap changer known, wherein a diverter switch insert a diverter switch is fixed by the mating contact pieces form-fitting and non-positively to the reaching into the interior of the oil vessel parts of the connection contacts. This is intended to achieve a simplified assembly or disassembly of the diverter switch insert.
  • the object of the invention is to further improve the known tap changer and to provide a generic diverter switch, which is simple in construction, requires only a small space and has a high electrical strength.
  • a horizontally extending upper bearing plate is provided in a manner known per se, all the components of the diverter switch insert wearing.
  • This upper bearing plate is attached to its periphery positively and / or non-positively to the reaching into the interior of the oil vessel parts of the connection contacts.
  • the in FIG. 1 shown diverter switch has him as a surrounding component in a known manner, a closed oil vessel 1, in which circulates the separate from the transformer oil diverter switch oil.
  • the oil vessel 1 consists of an insulating cylinder, which is closed at the top of the tap changer head 2 and bottom of an oil pan bottom 3. Below the oil pan bottom 3 of - not shown - selector of the tap changer is attached.
  • This coupling tube 4 Centrally in the interior of the oil vessel 1 extends in the upper region perpendicular to a coupling tube 4.
  • This coupling tube 4 has a coupling flange 5 at the top with a toothing 6. This is in communication with a transmission, not shown, by means of which a rotary motion of a motor drive o. ⁇ . Is transmitted to the coupling tube.
  • known shields 7 are provided.
  • a further coupling flange 8 is provided, which establishes the fixed connection to the actual drive shaft 9.
  • This drive shaft 9 extends vertically through the entire diverter switch down.
  • a stator 11 which acts as a force storage carrier, that carries the components of a known force accumulator, not shown. These are a tensioned by the rotational movement of the drive shaft 9 elevator part, a releasable output carriage and an actuatable by this output shaft for actuating the also not shown Lastumschalteressore. Since such energy storage in a variety of embodiments are familiar to those skilled in the art, said items were not shown in the drawing. It is only indicated an eccentric 12 on the drive shaft 9, the on known manner spans an elevator part. Incidentally, the drive shaft 9 is guided by a bearing 13 in the stator 11 and a further bearing 14 in the upper bearing plate 10.
  • a lower bearing plate 15 is provided below the upper bearing plate 10. Between upper bearing plate 10 and lower bearing plate 15 are not shown actual switching contacts of the diverter switch, which are not the subject of the present invention. These switching contacts may be mechanical contacts, vacuum switching cells, thyristors or a combination of different types of contact. These are, depending on the underlying circuit, operated in a predetermined switching sequence after triggering the energy storage.
  • each permanent main contact pair consists of an upper permanent main contact carrier 16 and lower permanent main contact carriers 17.
  • Upper permanent main contact fingers 18 are disposed on the upper permanent main contact carrier 16 and lower permanent main contact fingers 19 are disposed on each of the two lower permanent main contact carriers.
  • the wiring is in each case by means of a movable permanent main contact 20, which rolls in succession on the different permanent main contact fingers.
  • the upper terminal 21 for the discharge of a phase is shown.
  • the terminal 21 is electrically connected to the upper permanent main contact fingers 18.
  • the connection contact 22 for the side A of the diverter switch is shown. This communicates electrically with lower permanent main contact fingers 19 of one side.
  • the further connection contact for side B lies behind it in the horizontal plane and is therefore not visible in the sectional view.
  • a gear 24 is provided in a known manner, which actuates the selector by means of an insertable into a clutch 25 further drive shaft.
  • the extension of the drive shaft 9 is guided in a bearing 26 in the oil pan bottom 3.
  • a bearing 27 for guiding the drive shaft is also located in the lower bearing plate 15.
  • Each of the already discussed upper permanent main contact carrier 16 according to the invention has an upper centering bracket 28 with an upwardly directed locking pin 29. Every lower one Permanent main contact carrier 17 has a lower centering bracket 30, each with an upwardly directed centering pin 31.
  • Each of the locking pins 29 corresponds according to the invention with locking holes 32 on the circumference of the upper bearing plate 10
  • each of the centering pins 31 corresponds with centering holes 33 on the circumference of the lower bearing plate 15th
  • the attachment of the diverter switch insert is effected in that the upper bearing plate 10, on which all components are arranged, is introduced with their locking bores 32 into the respectively corresponding locking pins 29.
  • the upper bearing plate 10 is fixed in a form-fitting manner, on the upper Zentrierbügeln 28 and is fixed in such a way.
  • an additional centering by the centering openings 33 on the circumference of the lower bearing plate 15, in which the corresponding centering pins 31 are introduced takes place in a particularly advantageous manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Domestic Plumbing Installations (AREA)
  • Multiple-Way Valves (AREA)

Claims (3)

  1. Commutateur de réglage en charge pour un commutateur à gradins comprenant :
    - une cuve à huile (1), distincte qui l'entoure, et dont la paroi comporte des contacts de branchement (21, 22) électriques la traversant, pour chaque phase électrique à commuter, ces contacts étant répartis au moins dans un plan horizontal, en cercle, pour d'une part la sortie de charge et d'autre part chacun des deux côtés A et B du commutateur de réglage en charge commute entre ceux-ci et réalise d'autre part la liaison avec la sortie de charge,
    - une garniture de commutateur de réglage en charge étant prévue à l'intérieur de la cuve à huile (1), comportant un accumulateur de force, des moyens de commutation électriques pour la commutation de charge, des moyens pour actionner les moyens de commutation électriques ainsi que des résistances de passage, et
    - à l'intérieur de la cuve à huile (1) une plaque de palier (10), supérieure, horizontale, porte tous les éléments de la garniture du commutateur de réglage en charge,
    caractérisé en ce que
    la plaque de palier, supérieure (10) est fixée à sa périphérie, par une liaison par la forme et/ou par la force, aux parties des contacts de branchement (21) venant en saillie à l'intérieur de la cuve à huile (1),
    les contacts de branchement (21, 22) de chaque phase étant en liaison à l'intérieur de la cuve à huile (1) avec des paires de contacts principaux permanents,
    chacune des paires de contacts principaux permanents ayant un support de contacts principaux permanents, supérieur et inférieur (16, 17), pour recevoir les doigts de contact, supérieurs et inférieur (18, 19), des contacts permanents, et
    la plaque de palier supérieure (10) est fixée aux supports de contact permanent principaux (16) supérieurs et respectifs de toutes les phases, répartis en cercle dans un plan horizontal.
  2. Commutateur de réglage en charge selon la revendication 1,
    caractérisé en ce que
    les supports de contact permanents principaux supérieurs (16) ont chacun un étrier de centrage supérieur (18) avec une broche de blocage (29) dirigée vers le haut, et en ce que chacune de ces broches de blocage (29) correspond respectivement à un perçage de blocage (32) à la périphérie de la plaque de palier, supérieure (10), et
    la plaque de palier, supérieure (10) s'appuie par sa face inférieure, de manière bloquée en position, sur l'étrier de centrage supérieur (28).
  3. Commutateur de réglage en charge selon la revendication 2,
    caractérisé en ce qu'
    à une distance verticale de la plaque de palier, supérieure (10) et parallèlement à celle-ci, il y a une plaque de palier inférieur (15), reliée mécaniquement de façon solidaire à celle-ci,
    les supports de contacts permanents, principaux, inférieurs (17) ont chacun un étrier de centrage inférieur (30) avec une broche de centrage (31) respective dirigée vers le haut et
    chacune des broches de centrage (31) correspond respectivement à une ouverture de centrage (33) à la périphérie de la plaque de palier inférieure (13), pour avoir un blocage supplémentaire.
EP01122903A 2000-11-09 2001-09-25 Commutateur de réglage en charge pour commutateur à gradins Expired - Lifetime EP1205952B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10055406A DE10055406C1 (de) 2000-11-09 2000-11-09 Lastumschalter für einen Stufenschalter
DE10055406 2000-11-09

Publications (3)

Publication Number Publication Date
EP1205952A2 EP1205952A2 (fr) 2002-05-15
EP1205952A3 EP1205952A3 (fr) 2004-09-29
EP1205952B1 true EP1205952B1 (fr) 2008-05-07

Family

ID=7662613

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01122903A Expired - Lifetime EP1205952B1 (fr) 2000-11-09 2001-09-25 Commutateur de réglage en charge pour commutateur à gradins

Country Status (4)

Country Link
EP (1) EP1205952B1 (fr)
AT (1) ATE394784T1 (fr)
DE (2) DE10055406C1 (fr)
ES (1) ES2306686T3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009035699A1 (de) * 2009-07-30 2011-02-10 Maschinenfabrik Reinhausen Gmbh Anordnung eines Stufenschalters an einem Regeltransformator
DE102010020130A1 (de) * 2010-05-11 2011-11-17 Maschinenfabrik Reinhausen Gmbh Lastumschalter für einen Stufenschalter
DE202010016212U1 (de) * 2010-11-30 2012-03-01 Maschinenfabrik Reinhausen Gmbh Umsteller
DE102011113718A1 (de) * 2011-09-17 2013-03-21 Maschinenfabrik Reinhausen Gmbh Laststufenschalter
DE102013107549B4 (de) 2013-07-16 2017-11-30 Maschinenfabrik Reinhausen Gmbh Lastwähler für Stufentransformatoren und Trägerarm für einen Vorwähler des Lastwählers
DE102013107553B4 (de) 2013-07-16 2016-05-19 Maschinenfabrik Reinhausen Gmbh Laststufenschalter, Getriebe in dem Laststufenschalter und Verfahren einer notbetrieblichen Einstellung einer definierten Schaltposition in dem Laststufenschalter
DE102013107547B4 (de) 2013-07-16 2017-01-19 Maschinenfabrik Reinhausen Gmbh Laststufenschalter, Verfahren zur Montage eines Lastumschaltereinsatzes im Laststufenschalter und Kerosinablassschraube
DE102013107552B4 (de) 2013-07-16 2017-03-16 Maschinenfabrik Reinhausen Gmbh Laststufenschalter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR901313A (fr) * 1943-01-18 1945-07-24 Elin Und Schorch Werke Ag Fu R Dispositif pour la fixation d'un commutateur de puissance pour transformateurs à réglage par degrés
DE1638484C2 (de) * 1968-01-17 1975-11-20 Maschinenfabrik Reinhausen Gebrueder Scheubeck Kg, 8400 Regensburg Stufenschalter fur Regeltransformatoren
DE2529381C3 (de) * 1975-07-02 1979-05-31 Maschinenfabrik Reinhausen Gebrueder Scheubeck Gmbh & Co Kg, 8400 Regensburg Stufenschalter für Stufentransformatoren mit in einem zylindrischen ölgefäß untergebrachten Lastumschalter
DE3627028A1 (de) * 1986-08-09 1988-02-11 Reinhausen Maschf Scheubeck Stufenschalter fuer glockenkesseleinbau
DE3935289A1 (de) * 1989-10-24 1991-04-25 Reinhausen Maschf Scheubeck Zylindrischer lastumschalter eines stufenschalters von stufentransformatoren

Also Published As

Publication number Publication date
ES2306686T3 (es) 2008-11-16
ATE394784T1 (de) 2008-05-15
DE50113935D1 (de) 2008-06-19
EP1205952A2 (fr) 2002-05-15
EP1205952A3 (fr) 2004-09-29
DE10055406C1 (de) 2002-04-04

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