EP0354423B1 - Sélecteur cylindrique de gradins pour transformateurs à gradins avec anneaux de contact tenus par des conduits de raccordement - Google Patents

Sélecteur cylindrique de gradins pour transformateurs à gradins avec anneaux de contact tenus par des conduits de raccordement Download PDF

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Publication number
EP0354423B1
EP0354423B1 EP89113946A EP89113946A EP0354423B1 EP 0354423 B1 EP0354423 B1 EP 0354423B1 EP 89113946 A EP89113946 A EP 89113946A EP 89113946 A EP89113946 A EP 89113946A EP 0354423 B1 EP0354423 B1 EP 0354423B1
Authority
EP
European Patent Office
Prior art keywords
insulating material
ring
contact
cylinder
tap selector
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
EP89113946A
Other languages
German (de)
English (en)
Other versions
EP0354423A1 (fr
Inventor
Alexander Bleibtreu
Leo Ing. Grad. Pillmeier
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
Original Assignee
Maschinenfabrik Reinhausen GmbH
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 filed Critical Maschinenfabrik Reinhausen GmbH
Priority to AT89113946T priority Critical patent/ATE85149T1/de
Publication of EP0354423A1 publication Critical patent/EP0354423A1/fr
Application granted granted Critical
Publication of EP0354423B1 publication Critical patent/EP0354423B1/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
    • H01H9/0016—Contact arrangements for tap changers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals

Definitions

  • the invention relates to a cylindrical step selector for step transformers according to the preamble of claim 1.
  • the rigid connecting lines are additionally supported in several levels by comb-like scaffolding parts (AT-PS 199 759).
  • This support of the connecting lines therefore requires special construction parts that lie outside the actual tap selector and thus also take up additional space.
  • mounting the rigid connection cables can result in tension on the contact ring, especially since considerable lever lengths can occur due to the size of the step selector. As a result, the smooth movement of the rotary motion of the selector shaft can be impaired.
  • the object of the invention is therefore to provide an additional securing of the position of the contact ring in the step selector mentioned at the outset, so that tilting or tensioning of the contact ring on the selector shaft can be practically ruled out. This object is achieved by the means specified in the characterizing part of patent claim 1.
  • the advantage achieved by the invention lies in the additional securing of the position of the contact ring, which takes place completely independently of the connecting line and also does not take up any additional space. Furthermore, the contact ring is fixed practically on the supporting frame of the step selector, that is to say on the insulating cylinder and thus also independently of the selector shaft of the step selector. The contact ring is supported exclusively via parts made of insulating material, and these parts are locked together by cams or corresponding recesses.
  • the tap selector has a load-bearing insulating cylinder 1, which carries the fixed step contacts 2 of the contact planes. It also has a tubular switching shaft 3 arranged in the center of the insulating material cylinder 1, which can be rotated step by step in the usual way.
  • a contact ring 4 is provided, which is arranged around the selector shaft 3 and which is held by means of the connecting line 5.
  • the contact bridge 6 is held and guided by a support arm 7 seated on the control shaft 3.
  • the contact ring 4 is in turn seated on an insulating ring 8 and is locked to the latter via cams 9.
  • the insulating ring 8 is pushed over the selector shaft 3 and is supported on the insulating cylinder 1 with three struts 10 arranged in a star shape.
  • each strut 10 is provided with a cam 11 which engages in a corresponding recess in the insulating cylinder. This results in a stable position of the insulating ring 8, which is ultimately based on the supporting structure of the step selector, namely the insulating cylinder 1.
  • the insulating ring 8 can thus also serve as a guide or as a bearing for the selector shaft 3. Impairment of its position by connecting the connecting line 5 is practically impossible.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Control Of Electrical Variables (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Locating Faults (AREA)
  • Particle Accelerators (AREA)

Claims (2)

  1. Sélecteur cylindrique de prises pour transformateurs à prises, sélecteur dans lequel des contacts fixes de prises (2) sont situés dans au moins un plan sur la paroi d'un cylindre (1) en matière isolante et dans lequel il est prévu pour chacun de ces plans un pont de contact (6), dont l'extrémité interne frotte sur un anneau de contact (4) se situant dans ce même plan et qui est disposé autour d'un arbre de commutation tubulaire (3) en matière isolante, commandant les ponts de contact et cet anneau est fixé au moyen d'une liaison électrique rigide de raccordement (5) partant en principe latéralement et horizontalement du cylindre en matière isolante et assemblée avec l'anneau de contact, sélecteur de prises caractérisé en ce que l'anneau de contact (4) est placé sur un anneau (8) en matière isolante disposé autour de l'arbre de commutation (3) et est enclenché avec cet anneau au moyen de plusieurs ergots (9), tandis que l'anneau (8) en matière isolante est supporté par au moins trois jambes de force (10) en matière isolante qui prennent appui contre la paroi du cylindre (1) en matière isolante.
  2. Sélecteur cylindrique de prises selon la revendication 1, caractérisé en ce que les jambes de force (10), directement reliées à l'anneau (8) en matière isolante, sont enclenchées avec le cylindre (1) en matière isolante au moyen d'ergots (11) qui viennent en prise dans des perçages correspondants de ce cylindre.
EP89113946A 1988-08-12 1989-07-28 Sélecteur cylindrique de gradins pour transformateurs à gradins avec anneaux de contact tenus par des conduits de raccordement Expired - Lifetime EP0354423B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89113946T ATE85149T1 (de) 1988-08-12 1989-07-28 Zylindrischer stufenwaehler fuer stufentransformatoren mit durch anschlussleitungen gehaltenen kontaktringen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3827388 1988-08-12
DE3827388A DE3827388A1 (de) 1988-08-12 1988-08-12 Zylindrischer stufenwaehler fuer stufentransformatoren mit durch anschlussleitungen gehaltenen kontaktringen

Publications (2)

Publication Number Publication Date
EP0354423A1 EP0354423A1 (fr) 1990-02-14
EP0354423B1 true EP0354423B1 (fr) 1993-01-27

Family

ID=6360712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113946A Expired - Lifetime EP0354423B1 (fr) 1988-08-12 1989-07-28 Sélecteur cylindrique de gradins pour transformateurs à gradins avec anneaux de contact tenus par des conduits de raccordement

Country Status (4)

Country Link
EP (1) EP0354423B1 (fr)
JP (1) JPH02101719A (fr)
AT (1) ATE85149T1 (fr)
DE (2) DE3827388A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVI20040307A1 (it) * 2004-12-27 2005-03-27 Comem Spa Commutatore senza tensione con manovra per trasformatori elettrici

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT199759B (de) * 1955-04-18 1958-09-25 Elin Ag Elek Ind Wien Stufenwähler für Regeltransformatoren
DE3009052C2 (de) * 1980-03-08 1983-10-20 Maschinenfabrik Reinhausen Gebrueder Scheubeck Gmbh & Co Kg, 8400 Regensburg Stufenschalter für Stufentransformatoren
GB2078445B (en) * 1980-06-17 1984-04-18 Ass Tapchangers Ltd An on-load tap selector
EP0166844A1 (fr) * 1984-07-04 1986-01-08 ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI (ACEC) Société Anonyme Sélecteur de charge à arbre coudé

Also Published As

Publication number Publication date
JPH02101719A (ja) 1990-04-13
DE3827388A1 (de) 1990-02-15
ATE85149T1 (de) 1993-02-15
DE58903389D1 (de) 1993-03-11
EP0354423A1 (fr) 1990-02-14

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