EP4042462B1 - Sélecteur pour changeur de prises en charge - Google Patents

Sélecteur pour changeur de prises en charge Download PDF

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Publication number
EP4042462B1
EP4042462B1 EP20780647.2A EP20780647A EP4042462B1 EP 4042462 B1 EP4042462 B1 EP 4042462B1 EP 20780647 A EP20780647 A EP 20780647A EP 4042462 B1 EP4042462 B1 EP 4042462B1
Authority
EP
European Patent Office
Prior art keywords
selector
arm
preselector
change
over
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
EP20780647.2A
Other languages
German (de)
English (en)
Other versions
EP4042462A1 (fr
EP4042462C0 (fr
Inventor
Thomas Schuster
Georg Kellendorfer
Andreas Raith
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 EP4042462A1 publication Critical patent/EP4042462A1/fr
Application granted granted Critical
Publication of EP4042462C0 publication Critical patent/EP4042462C0/fr
Publication of EP4042462B1 publication Critical patent/EP4042462B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0027—Operating mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • 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
    • 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
    • H01H9/0011—Voltage selector switches

Definitions

  • a load tap changer with a selector is known.
  • the selector has a fine selector and a preselector. Both the selector arms of the fine selector and the preselector arm are operated by a separate gear.
  • This design requires that all parts of the preselector, such as fixed contacts and moving contacts, are arranged on the outside of the gear. This in turn is disadvantageous for the insulation distances of the entire switch, since the preselector contacts are arranged further away from the windings. Furthermore, the many gears are complex and expensive.
  • a preselector driver is operated via a drive shaft.
  • a driver of the preselector driver engages a preselector Geneva wheel with each complete revolution of the driver.
  • a rocker is moved via a second driver that is connected to the Geneva wheel, which in turn is mechanically connected to the movable preselector contact in such a way that the movable preselector contact is also operated with the rocker.
  • the object of the invention is to provide a selector for an on-load tap-changer which is simple and compact in design and yet offers a high level of safety.
  • the invention proposes a selector for an on-load tap changer, comprising a fine selector with a first selector arm and a second selector arm, a preselector, wherein the preselector is actuated via one of the selector arms of the fine selector.
  • the selector arm has a rocker.
  • the preselector has a preselector arm with a first end and a second end.
  • the preselector arm can have a guide at its second end.
  • the preselector can be operated indirectly or directly via one of the selector arms.
  • the guide can be designed in any way as required and can be designed, for example, as a groove, slot or partial slot groove.
  • the preselector arm is pivoted about a pivot point on a second shaft.
  • first selector arm and the second selector arm are rotatably mounted on a first shaft.
  • Figure 1 shows a schematic sketch of a tapped transformer known from the prior art with an on-load tap changer.
  • This has at least one main winding 60 and one control winding 61.
  • the main winding 60 is connected at one end to the preselector 4.
  • the preselector 4 connects the main winding 60 to either the upper end or the lower end of the control winding 61.
  • the control winding 61 has a plurality of winding taps 62.
  • the winding taps 62 are contacted by the selector arms 21, 22 of the fine selector 2.
  • the fine selector 2 and the preselector 4 form the selector 1.
  • the selector 1 is also connected to a load changeover switch.
  • the selector 1 usually preselects the winding tap 62 to be connected and the load changeover switch carries out the switching from the current winding tap to the preselected winding tap under load.
  • FIGS 2 and 3 show the selector 1 according to the invention.
  • the selector 1 has a fine selector 2 and a pre-selector 4.
  • the fine selector 2 has a first selector arm 21 and a second selector arm 22.
  • the selector arms 21, 22 are rotatably mounted on a first shaft 25.
  • the first selector arm 21 is arranged immediately behind the second selector arm 22; thus in two planes.
  • a first Geneva wheel 26 is mechanically connected to the first selector arm 21.
  • a second Geneva wheel 27 is mechanically connected to the second selector arm 22.
  • a driver 28, which has two driver rollers 29, 30, drives one of the Geneva wheels 26, 27 and thus one of the selector arms 21, 22 by rotation.
  • the continuous movement of the driver 28 is converted into a step-by-step movement via the driver rollers 29, 30 and the Geneva wheels 26, 27.
  • first one of the selector arms is moved in one direction of rotation and then the other selector arm is moved in the same direction of rotation.
  • Contact elements 31 are arranged on the selector arms 26, 27, which contact the corresponding selector contacts 5.
  • the selector contacts 5 are arranged in a circle or at least in a circular arc in a plate 6 and are connected to winding taps 62 of the control winding 61.
  • the preselector 4 of the selector 1 has a preselector arm 40, three contacts 44, 45, 46 and a movable contact unit 43.
  • the contact unit 43 is movably mounted on the first end 41 of the preselector arm 40.
  • the preselector arm 40 is fork-shaped and has a guide 49.
  • the preselector arm 40 is also rotatably mounted on a second shaft 47.
  • the pivot point 48 of the preselector arm 40 is located between the first and second ends 41, 42 of the preselector arm 40; preferably in its middle.
  • a rocker 23 is arranged on the second selector arm 22. This has a roller 32 at its extended end.
  • the second end 42 of the preselector arm 40 has a guide 49 which is designed in such a way that the roller 32 of the rocker 23 can engage with it and the preselector arm 40 performs a pivoting movement about its pivot point 48 while the second selector arm 22 and thus the rocker 23 rotate.
  • the first end 41 of the preselector arm 40 moves from a first position to a second position.
  • the contact unit 43 then no longer connects the first and second contacts 44, 45, but rather the second and third contacts 45, 46.
  • the first end 41 of the preselector arm 40 moves from a second position to the first position.
  • the contact unit 43 then no longer connects the third and second contacts 45, 46, but rather the second and first contacts 44, 45.
  • the preselector arm 40 is not rotated completely, but rather performs a partial rotation. In other words, the preselector arm 40 is pivoted from a first position to a second position and back again, thus actuating the preselector 4.
  • the main winding 60 is connected to either the upper end or the lower end of the control winding 61.

Landscapes

  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Claims (6)

  1. Sélecteur (1) pour un chargeur de prises en charge, comprenant
    - un sélecteur de prises (2), qui présente un premier bras de sélecteur (21) et un deuxième bras de sélecteur (22),
    - un présélecteur (4),
    dans lequel
    - le présélecteur (4) est de actionné par le biais d'au moins un des bras de sélecteur (21, 22) du sélecteur de prises (2),
    caractérisé en ce que
    - le présélecteur (40) présente un bras de présélecteur (40) doté d'une première extrémité (41) et d'une deuxième extrémité (42) ;
    - le deuxième bras de sélecteur (22) présente un bras oscillant (23) qui, lors de l'actionnement du présélecteur (4), agit sur la deuxième extrémité (42) du bras de présélecteur (40).
  2. Sélecteur (1) selon la revendication 1, dans lequel
    - le bras oscillant (23) présente un galet (32) ;
    - le bras de présélecteur (40) présente un guide (49) à sa deuxième extrémité (42) ;
    - lors de l'actionnement du présélecteur (4), le galet (32) vient temporairement en prise dans le guide (49) et le bras de présélecteur (40) est pivoté.
  3. Sélecteur (1) selon la revendication 2, dans lequel le guide (49) est réalisé sous forme de rainure, de fente ou de rainure fendue partielle.
  4. Sélecteur (1) selon l'une des revendications 1 à 3, dans lequel
    - le bras de présélecteur (40) est pivoté autour d'un centre de rotation (48) sur un deuxième arbre (47).
  5. Sélecteur (1) selon l'une des revendications 1 à 4, dans lequel
    - le premier bras de sélecteur (21) et le deuxième bras de sélecteur (22) sont disposés de manière montée à rotation sur un premier arbre.
  6. Chargeur de prises en charge comportant un sélecteur (1) selon l'une des revendications 1 à 5.
EP20780647.2A 2019-11-12 2020-09-24 Sélecteur pour changeur de prises en charge Active EP4042462B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019130462.8A DE102019130462B4 (de) 2019-11-12 2019-11-12 Wähler für Laststufenschalter sowie Laststufenschalter damit
PCT/EP2020/076653 WO2021094024A1 (fr) 2019-11-12 2020-09-24 Sélecteur pour changeur de prises en charge

Publications (3)

Publication Number Publication Date
EP4042462A1 EP4042462A1 (fr) 2022-08-17
EP4042462C0 EP4042462C0 (fr) 2024-08-28
EP4042462B1 true EP4042462B1 (fr) 2024-08-28

Family

ID=72659219

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20780647.2A Active EP4042462B1 (fr) 2019-11-12 2020-09-24 Sélecteur pour changeur de prises en charge

Country Status (7)

Country Link
US (1) US11798752B2 (fr)
EP (1) EP4042462B1 (fr)
JP (1) JP7592710B2 (fr)
CN (1) CN114667584B (fr)
AU (1) AU2020381675A1 (fr)
DE (1) DE102019130462B4 (fr)
WO (1) WO2021094024A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019131169B3 (de) * 2019-11-19 2021-02-18 Maschinenfabrik Reinhausen Gmbh Laststufenschalter und Stufentransformator mit Laststufenschalter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757517C (de) * 1938-02-24 1953-12-07 Aeg Schaltvorrichtung, bestehend aus einem gleichfoermig bewegten Stufen-schalter und einem einpoligen Wendeschalter, fuer unter Last regelbare Transformatoren
US3155782A (en) * 1959-05-01 1964-11-03 Mc Graw Edison Co Switch actuating mechanism for controlled speed tap changer

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4201938A (en) * 1978-10-02 1980-05-06 Siemens-Allis, Inc. Voltage regulator which eliminates arcing during tap changes
US4363060A (en) * 1979-12-19 1982-12-07 Siemens-Allis, Inc. Arcless tap changer for voltage regulator
DE9308424U1 (de) * 1992-10-16 1994-02-17 Maschinenfabrik Reinhausen Gmbh, 93059 Regensburg Stufenwähler mit Mehrfach-Grobwähler für Stufenschalter
DE19743864C1 (de) * 1997-10-04 1999-04-15 Reinhausen Maschf Scheubeck Stufenschalter
BRPI0408538A (pt) * 2003-04-03 2006-03-07 Reinhausen Maschf Scheubeck chave de contatos múltiplos
BR112013024622B1 (pt) * 2011-03-25 2020-11-10 Abb Schweiz Ag trocador de tomada de carga
BR112013024908B1 (pt) * 2011-03-27 2021-02-17 Abb Schweiz Ag comutador de derivação em carga para comutar derivações em um enrolamento de um transformador
DE102014106997A1 (de) * 2014-05-19 2015-11-19 Maschinenfabrik Reinhausen Gmbh Schaltanordnung für einen Stufentransformator sowie Verfahren zum Betreiben einer derartigen Schaltanordnung
DE102016104499B3 (de) * 2016-03-11 2017-04-27 Maschinenfabrik Reinhausen Gmbh Wähler für einen Laststufenschalter und Laststufenschalter mit Lastumschalter und Wähler
DE102016104500B3 (de) * 2016-03-11 2017-05-04 Maschinenfabrik Reinhausen Gmbh Laststufenschalter
DE102016117526B3 (de) 2016-09-16 2018-02-15 Maschinenfabrik Reinhausen Gmbh Lasststufenschalter, Regeltransformator mit Laststufenschalter und Verfahren zum Schalten eines Laststufenschalters

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757517C (de) * 1938-02-24 1953-12-07 Aeg Schaltvorrichtung, bestehend aus einem gleichfoermig bewegten Stufen-schalter und einem einpoligen Wendeschalter, fuer unter Last regelbare Transformatoren
US3155782A (en) * 1959-05-01 1964-11-03 Mc Graw Edison Co Switch actuating mechanism for controlled speed tap changer

Also Published As

Publication number Publication date
CN114667584A (zh) 2022-06-24
EP4042462A1 (fr) 2022-08-17
DE102019130462B4 (de) 2022-03-24
JP7592710B2 (ja) 2024-12-02
JP2023501214A (ja) 2023-01-18
WO2021094024A1 (fr) 2021-05-20
AU2020381675A1 (en) 2022-06-23
CN114667584B (zh) 2025-09-12
US11798752B2 (en) 2023-10-24
DE102019130462A1 (de) 2021-05-12
EP4042462C0 (fr) 2024-08-28
US20220392716A1 (en) 2022-12-08

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