EP0166844A1 - Lastwähler mit gebogener Welle - Google Patents

Lastwähler mit gebogener Welle Download PDF

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Publication number
EP0166844A1
EP0166844A1 EP84870091A EP84870091A EP0166844A1 EP 0166844 A1 EP0166844 A1 EP 0166844A1 EP 84870091 A EP84870091 A EP 84870091A EP 84870091 A EP84870091 A EP 84870091A EP 0166844 A1 EP0166844 A1 EP 0166844A1
Authority
EP
European Patent Office
Prior art keywords
bearing
selector
coupling element
control shaft
selector according
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.)
Ceased
Application number
EP84870091A
Other languages
English (en)
French (fr)
Inventor
Jean-Claude Dufrasnes
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.)
Umicore NV SA
Original Assignee
Ateliers de Constructions Electriques de Charleroi SA
ACEC SA
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 Ateliers de Constructions Electriques de Charleroi SA, ACEC SA filed Critical Ateliers de Constructions Electriques de Charleroi SA
Priority to EP84870091A priority Critical patent/EP0166844A1/de
Priority to KR1019850004744A priority patent/KR860001455A/ko
Priority to US06/751,699 priority patent/US4647731A/en
Priority to JP60146438A priority patent/JPS6164109A/ja
Priority to CN198585105310A priority patent/CN85105310A/zh
Publication of EP0166844A1 publication Critical patent/EP0166844A1/de
Ceased legal-status Critical Current

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Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches

Definitions

  • the present invention relates to a tap selector for stepped transformers.
  • the different sockets constituting the fixed contacts are electrically connected to the outputs of the steps of the transformer.
  • These different sockets are arranged, at a sufficient dielectric distance from each other, on the internal wall of an insulating cylinder, acting as an oil container, inside of which move movable contacts.
  • the number of fixed contacts arranged on the insulating cylinder is proportional to the diameter of this cylinder.
  • the increase in the number of fixed contacts necessarily leads to an increase in the diameter of the insulating tube.
  • these variations in diameter cause significant modifications to the components of the device and increase the number of different parts to be kept in store.
  • the object of the present invention is to use a maximum number of identical elements to cover different classes of device and thus reduce manufacturing costs and inventory management. This goal is achieved by judiciously modifying the geometry of a limited number of elements.
  • the invention essentially consists in using, at the level of the selector, on the one hand a bent shaft making it possible to keep the same switching modules on the other hand adaptation rings for connecting the bowl and the housing of the control mechanism to a larger diameter insulating cylinder.
  • Figure 1 is a sectional view of the assembly of a charge selector.
  • the load selector comprises an insulating cylinder 1 carrying, at the periphery of the inner wall, fixed selector contacts 2 and common point rings 3 which are connected to the steps of the three phases of the transformer. From 12.30 / 1923 fixed changeover contacts 4 are mounted in the upper part of the insulating cylinder 1.
  • the selector switching modules 5 are added to an insulating tube 6 constituting the off-center part of a bent control shaft 7.
  • This bent control shaft 7 consists of a male coupling element 8, a female coupling element 9 associated with an upper elbow 10, of the insulating tube 6, hereinafter called off-center insulating tube 6, a lower bend 11 joined at a conical end 12 by means of a bearing 13 called the lower bearing 13.
  • the control shaft 7 is centered and driven at its upper part by the male coupling element 8 rotating in a bearing 14, called the upper bearing 14, and supported by a flange 15 of a casing 16 containing a control mechanism 17 which actuates the male coupling element 8.
  • the cross section of the male coupling element 8 is of non-circular shape and engages in an imprint of the same configuration of the female coupling element 9.
  • L 'conical end 12 is centered by the interposition of a socket 18 on a bearing support 19 secured to a bowl 20 serving as the bottom of the oil container.
  • Ce'uvuv 20 designed for an insulating tube of smaller diameter, is connected to the insulating cylinder 1 by a lower connection ring 21.
  • a siphoning pipe can be provided passing through the bent control shaft 7 and making it possible to draw the oil from the container.
  • This duct is accessible from the outside by a connection tube 22 which extends through the control mechanism 17 to end in a drain tube 23 arranged vertically in an axial bore, of larger diameter, of the element d coupling 8 and kept centered by a seal 24 placed in the female coupling element 9.
  • the drain tube 23 does not support any mechanical force .
  • the tube drain 23 leads to a bent pipe 25, internal to the female coupling element 9 and to the upper elbow 10.
  • the bent pipe 25 can then be connected to a siphoning tube 26 held in the axis, marked 27, of the insulating tube off-center 6 by the upper elbow 10 and the lower elbow 11.
  • the lower end of the siphoning tube 26 opens into a hole 28 made in the lower elbow 11 along the axis 27 to serve as a nozzle 28.
  • Seals 29 are provided at the two ends of the siphoning tube 26.
  • This casing 16 designed for an insulating tube of smaller diameter is connected to the insulating cylinder 1 by a spherical connection ring 30.
  • the casing 16 carries over its entire periphery a shoulder 31 which is connected to the transformer tank.
  • the female coupling 9 supports at its base a bearing 32 which equips a plate 33 secured to an inverter insulating tube 34 on which are movable inverter contacts 35.
  • the plate 33 carries a buttonhole 36 in which engages a drive lug 37 actuated by the control mechanism 17.
  • This control mechanism 17 independently actuates the reverser via the drive lug 37 and the selector via the male coupling 8.
  • the insulating cylinder 1 in collaboration with the bowl 20, the lower connection ring 21, the casing 16 provided with a cover 38 and the upper connection ring 30 acts as an oil container for the entire appliance.
  • This oil container is sealed by seals 39, 40, 41, 42, 43 arranged in grooves made respectively in the lower connection ring 21, in the upper connection ring 30 and in the cover 38.
  • the insulating tube 1, carrying the fixed contacts of the reverser 4, the fixed contacts of the selector 2 and the crowns of common point 3, are concentric around a same axis 44 called the axis of the device 44.
  • the off-center insulating tube 6, carrying the selector switching modules 5 has an axis of symmetry of revolution called the axis of the bent part 27.
  • This off-center insulating tube 6 constitutes the bent part of the control shaft 7 which bears on the lower bearing 13 and on the upper bearing, both concentric with the axis of the apparatus 44.
  • the upper part of the off-center insulating tube 6 moves inside the inverter insulating tube 34.
  • the covering part of the off-center insulating tube 6 and the insulating tube of the inverter 34 is more or less depending on the distance to be left between the fixed contacts of the reverser 4 and the plate 33.
  • the selector switching modules 5 are normally mounted on the off-center insulating tube 6 according to the generator contained in the plane formed by the axis of the device 44 and the axis of the bent part 27 in line with the fixed selector 2 contacts
  • these modules can be mounted in a position deviating more or less strongly from the normal position previously defined.
  • the same result could also be obtained by the circular shape of the section of this off-center insulating cylinder 6 by an elliptical shape and by having soles adjustable in rotation on the lower elbow 11 and the upper elbow 10.
  • the lower connection crown 21 and the upper connection ring 30 are preferably identical to each other and of a suitable shape so as to be easily set to the desired external diameter.
  • the passage resistors are arranged around the off-center insulating tube 6 in a molded sheath, extending into the free space located at the bottom of each selector switching module 5, and shaped to support the moving contact moving in front of each common point crown 3.
  • the off-center insulating tube 6 can be replaced over a part of its length by a metal tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Insulators (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
EP84870091A 1984-07-04 1984-07-04 Lastwähler mit gebogener Welle Ceased EP0166844A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP84870091A EP0166844A1 (de) 1984-07-04 1984-07-04 Lastwähler mit gebogener Welle
KR1019850004744A KR860001455A (ko) 1984-07-04 1985-07-02 엘보축에 의한 부하절환장치
US06/751,699 US4647731A (en) 1984-07-04 1985-07-03 Transformer crankshaft load selector
JP60146438A JPS6164109A (ja) 1984-07-04 1985-07-03 エルボ軸による負荷切換装置
CN198585105310A CN85105310A (zh) 1984-07-04 1985-07-10 曲轴型有载分接开关

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP84870091A EP0166844A1 (de) 1984-07-04 1984-07-04 Lastwähler mit gebogener Welle
CN198585105310A CN85105310A (zh) 1984-07-04 1985-07-10 曲轴型有载分接开关

Publications (1)

Publication Number Publication Date
EP0166844A1 true EP0166844A1 (de) 1986-01-08

Family

ID=75134311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84870091A Ceased EP0166844A1 (de) 1984-07-04 1984-07-04 Lastwähler mit gebogener Welle

Country Status (5)

Country Link
US (1) US4647731A (de)
EP (1) EP0166844A1 (de)
JP (1) JPS6164109A (de)
KR (1) KR860001455A (de)
CN (1) CN85105310A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0354423A1 (de) * 1988-08-12 1990-02-14 Maschinenfabrik Reinhausen Gmbh Zylindrischer Stufenwähler für Stufentransformatoren mit durch Anschlussleitungen gehaltenen Kontaktringen
EP0354425A1 (de) * 1988-08-12 1990-02-14 Maschinenfabrik Reinhausen Gmbh Zylindrischer Stufenwähler mit durch einen Tragarm aus Isolierstoff geführter Kontaktbrücke
EP0354424A1 (de) * 1988-08-12 1990-02-14 Maschinenfabrik Reinhausen Gmbh Zylindrischer Stufenwähler für Stufentransformatoren mit durch Anschlussleitungen fixierten Kontaktringen

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4611869B2 (ja) * 2005-11-18 2011-01-12 株式会社日立産機システム モールド変圧器及びそれに用いるタップカバー
DE102010020130A1 (de) * 2010-05-11 2011-11-17 Maschinenfabrik Reinhausen Gmbh Lastumschalter für einen Stufenschalter
CN102354626B (zh) * 2011-09-30 2014-04-23 上海华明电力设备集团有限公司 一种立式布置的一体式双极性转换器
DE102013107547B4 (de) * 2013-07-16 2017-01-19 Maschinenfabrik Reinhausen Gmbh Laststufenschalter, Verfahren zur Montage eines Lastumschaltereinsatzes im Laststufenschalter und Kerosinablassschraube
DE102013107549B4 (de) * 2013-07-16 2017-11-30 Maschinenfabrik Reinhausen Gmbh Lastwähler für Stufentransformatoren und Trägerarm für einen Vorwähler des Lastwählers
CN104425145B (zh) * 2013-08-30 2017-08-11 西门子公司 切换装置的驱动机构及其切换装置
CN105206443B (zh) * 2015-10-11 2017-11-28 辽宁金立电力电器有限公司 一种配电变压器有载分接开关
CN116504578B (zh) * 2023-04-10 2024-04-26 上海交通大学 一种真空有载分接开关及调压方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439465A1 (fr) * 1978-10-19 1980-05-16 Reinhausen Kg Maschf Selecteur en charge pour transformateur a echelons
FR2453481A1 (fr) * 1979-04-03 1980-10-31 Reinhausen Kg Maschf Selecteur triphase en charge pour transformateurs a echelons

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2723318A (en) * 1951-03-07 1955-11-08 Jansen Bernhard Load selector for tapped transformers with insulating cylinders unrolling within each other
DE1788013B1 (de) * 1968-09-14 1971-12-02 Reinhausen Maschf Scheubeck Stufenwaehler mit wender fuer stufenschalter von re geltransfor matoren
SE357279B (de) * 1971-11-02 1973-06-18 Asea Ab
US3902030A (en) * 1973-08-31 1975-08-26 Laurentiv Popa Diverter switch for on-load changers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439465A1 (fr) * 1978-10-19 1980-05-16 Reinhausen Kg Maschf Selecteur en charge pour transformateur a echelons
FR2453481A1 (fr) * 1979-04-03 1980-10-31 Reinhausen Kg Maschf Selecteur triphase en charge pour transformateurs a echelons

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0354423A1 (de) * 1988-08-12 1990-02-14 Maschinenfabrik Reinhausen Gmbh Zylindrischer Stufenwähler für Stufentransformatoren mit durch Anschlussleitungen gehaltenen Kontaktringen
EP0354425A1 (de) * 1988-08-12 1990-02-14 Maschinenfabrik Reinhausen Gmbh Zylindrischer Stufenwähler mit durch einen Tragarm aus Isolierstoff geführter Kontaktbrücke
EP0354424A1 (de) * 1988-08-12 1990-02-14 Maschinenfabrik Reinhausen Gmbh Zylindrischer Stufenwähler für Stufentransformatoren mit durch Anschlussleitungen fixierten Kontaktringen

Also Published As

Publication number Publication date
CN85105310A (zh) 1987-01-14
JPS6164109A (ja) 1986-04-02
KR860001455A (ko) 1986-02-26
US4647731A (en) 1987-03-03

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19851024

17Q First examination report despatched

Effective date: 19860912

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19870801

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DUFRASNES, JEAN-CLAUDE