EP0325139B1 - Dispositif de contact monté dans une paroi de matériaux isolants pour sélecteurs de prises de transformateurs à prises - Google Patents

Dispositif de contact monté dans une paroi de matériaux isolants pour sélecteurs de prises de transformateurs à prises Download PDF

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Publication number
EP0325139B1
EP0325139B1 EP89100296A EP89100296A EP0325139B1 EP 0325139 B1 EP0325139 B1 EP 0325139B1 EP 89100296 A EP89100296 A EP 89100296A EP 89100296 A EP89100296 A EP 89100296A EP 0325139 B1 EP0325139 B1 EP 0325139B1
Authority
EP
European Patent Office
Prior art keywords
insulating material
contact
shaft
sleeve
contact member
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
EP89100296A
Other languages
German (de)
English (en)
Other versions
EP0325139A2 (fr
EP0325139A3 (en
Inventor
Alexander Bleibtreu
Rolf Ing.Grad. Lauterwald
Dieter Dr.-Ing. Dohnal
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
Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
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
Priority to AT89100296T priority Critical patent/ATE103735T1/de
Publication of EP0325139A2 publication Critical patent/EP0325139A2/fr
Publication of EP0325139A3 publication Critical patent/EP0325139A3/de
Application granted granted Critical
Publication of EP0325139B1 publication Critical patent/EP0325139B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
    • 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
    • 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
    • H01H2009/0022—Mounting of the fixed contacts or taps on cylindrical wall of oil vessel containing the tap changer; Details of screening

Definitions

  • the invention relates to a contact arrangement for step selector according to the preamble of claim 1.
  • Such contact arrangements are known: DE-AS 11 18 860.
  • insulating material cylinders manufactured using the filament process are used for both the diverter switch and the tap selector. It is therefore necessary to arrange a large number of contact pieces in the wall of such an insulating material cylinder. It should be taken into account here that the shaft sitting in the wall of the insulating material cylinder acts as an electrode, on which high exit field strengths occur, mainly when subjected to electrical shock. The contact pieces sitting in the wall are therefore provided with additional cross insulation. This is to prevent the high exit field strengths that occur from coming to rest directly on the glass fibers cut through with the bore and on the capillaries that may form around individual filaments. Since it is also important to avoid metallic fasteners when fastening the contact pieces, so as not to further reduce the electrical strength between the contacts by means of these metallic fasteners, the contact arrangements mentioned are very expensive.
  • the object of the invention is to provide a contact arrangement according to the preamble of claim 1, which can be produced in a simple manner while avoiding metallic fasteners which would lead to a deterioration of the field profile and which therefore require additional control electrodes leaves. This object is achieved by the means specified in the characterizing part of claim 1.
  • the new contact arrangement can be produced with simple tools or aids
  • another advantage is that the contact piece can be fastened in the cylinder wall without additional metallic parts and also without sharp-edged threads.
  • the insulating-material socket on the side of the terminal lug is provided with two opposing cutouts corresponding to the width of the terminal lug. This simplifies the assembly of the contact device, since the insulating bush can also be pushed onto the shaft after the terminal lug has been crimped, after which it is then rotated through 90 °.
  • the shaft of the contact piece in the region of the two insulating material sockets can be provided with a thin layer of dielectric high-quality insulating material.
  • the shaft can e.g. can be wrapped with a special insulating material or it can e.g. be coated with insulating material using the fluidized bed process.
  • the contact is easily possible to arrange the contact to be provided with a usual shielding electrode on the connection side.
  • This can be arranged in such a way that it is simply clamped between the insulating material bushing and the deforming point, whereby it lies against the surface of the insulating material bushing.
  • the insulating material bushing can furthermore be provided with a peripheral edge which surrounds the shielding electrode on the outside and which forms a further insulating barrier.
  • the contact piece with a flat shaft 1 is inserted into the wall 2 of an insulating material cylinder.
  • the contact piece has a contact surface designed as an electrode shape 3 on the inside of the cylinder and a connection surface designed as a flat connection 4 on the outside.
  • the contact piece with its contact surface designed as an electrode shape 3 is firmly embedded in the insulating sleeve 5 and, on the other hand, through deformations 9, which have been made on the outside of the wall 2 on the shaft 1 and which are directed against the outer insulating sleeve 6, in the wall 2 of the Insulated plastic cylinder held.
  • the gap 11 existing between the two insulating material bushings 5, 6 is connected to the outside via ventilation ducts 12.
  • the two recognizable holes 13 are used to deform the shaft 1 on the outside of the wall 2 of the insulating cylinder.
  • the contact piece has a round shaft 31, which in turn is seated in the wall 2 of an insulating material cylinder.
  • the inner, thicker end 33 forming the contact surface is in turn designed as an electrode shape and lies firmly against the inner insulating material bush 35.
  • the outer end of the contact piece is provided with a crimped flat connection 34, the flat connection extending beyond the width of the shaft 31.
  • the outer insulating material bushing 36 has two cutouts 361, which correspond to the width of the flat connection 34.
  • the outer insulating material bushing 36 can subsequently be pushed over the flat connection and then subsequently rotated by approximately 90 °.
  • the contact piece is fixed by deformations 39, which have been made on the shaft 31 on the outside of the wall 2, in such a way that the contact piece together with the two insulating material bushings 35, 36 is held firmly in the wall 2 of the insulating material cylinder becomes. Vent channels 312 are also provided here.
  • FIGS. 4a and 4b show an embodiment as has already been shown and described in FIGS. 1, 2a and 2b.
  • the shaft 41 of the contact piece in the region of the two insulating bushings 45, 46 is provided with additional insulation 14 made of high-quality insulating material. Everything else corresponds to the example described above.
  • the exemplary embodiment described at the beginning is provided with an additional shielding electrode 15, which is arranged around the deformations 9.
  • the shielding electrode 15 lies against the surface of the outer insulating material bushing 6 and is also held by the deformations 9.
  • the outer insulating material bushing 66 is provided with a peripheral edge 16 which surrounds the shielding electrode 15 laterally and is open to the outside. This edge 16 serves as an additional insulating barrier. All other features correspond to the features described with reference to FIGS. 1, 2a, 2b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Insulators (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Insulating Of Coils (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Push-Button Switches (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Claims (6)

  1. Dispositif de contact pour des sélecteurs de prises de transformateurs à prises dont la pièce de contact est montée avec son corps (1) dans un perçage d'une paroi de cylindre (2) en matière isolante obtenue par enroulement et sur la face extérieure de la paroi du cylindre, cette pièce est en saillie par son extrémité (4) munie d'une surface de raccordement et du côté intérieur, la pièce est en saillie de la paroi du cylindre par une extrémité (3) munie d'une surface de contact, le corps ayant une enveloppe supplémentaire en matière isolante assurant l'isolation transversale,
    dispositif caractérisé en ce que
    l'enveloppe se compose de deux pièces (5, 6) venant prendre l'une dans l'autre à la manière de deux manchons, en matière isolante, ces deux pièces étant engagées sur le corps (1) à partir des deux faces de la paroi cylindrique (2), et elles s'appuient respectivement par un bord en saillie (7, 8) contre la paroi du cylindre, l'extrémité (3) de la pièce de contact munie de la surface de contact étant renforcée par un bourrelet sous forme d'électrode par rapport au corps et elle s'appuie solidement contre la douille en matière isolante (5) par cette forme d'électrode (3), la pièce de contact étant maintenue par déformation permanente (9) de son corps dans la paroi du cylindre, sur le côté extérieur de cette paroi.
  2. Dispositif de contact selon la revendication 1, caractérisé en ce que l'intervalle (11) qui subsiste entre les deux douilles de matière isolante (5, 6) engagées l'une dans l'autre, est relié à l'extérieur par des canaux de ventilation (12).
  3. Dispositif de contact selon la revendication 1 ou 2, caractérisé en ce que l'extrémité de la pièce de contact qui porte la surface de raccordement se prolonge par une patte de raccordement (34) réalisée par écrasement et dont la largeur dépasse le diamètre du corps (31), la douille (36) située du côté de la patte de raccordement est munie de deux cavités (361) opposées, correspondant à la largeur de la patte de raccordement (34), et, en position finale de la pièce de contact, la douille (36) est tournée environ de 90° avec les cavités (361) par rapport à l'extension en largeur de la patte de raccordement (34).
  4. Dispositif de contact selon les revendications 1, 2 ou 3, caractérisé en ce qu'au niveau des deux douilles isolantes (45, 46), le corps (41) de la pièce de contact comporte une mince couche (14) en une matière isolante à caractéristique diélectrique très élevée.
  5. Dispositif de contact selon l'une des précédentes revendications, caractérisé en ce qu'une électrode formant écran (15) entoure la zone de déformation (9), électrode qui s'appuie contre la surface supérieure de la douille isolante (6) et est pincée entre cette douille et la zone de déformation.
  6. Dispositif de contact selon la revendication 5, caractérisé en ce que la douille isolante (66) comporte, sur son côté externe, un bord (67) ouvert vers l'extérieur, entourant latéralement l'électrode (15) formant écran et constituant une barrière d'isolation.
EP89100296A 1988-01-16 1989-01-10 Dispositif de contact monté dans une paroi de matériaux isolants pour sélecteurs de prises de transformateurs à prises Expired - Lifetime EP0325139B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89100296T ATE103735T1 (de) 1988-01-16 1989-01-10 In einer isolierstoffwand sitzende kontaktanordnung fuer stufenwaehler von stufentransformatoren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3801152 1988-01-16
DE3801152A DE3801152A1 (de) 1988-01-16 1988-01-16 In einer isolierstoffwand sitzende kontaktanordnung fuer stufenwaehler von stufentransformatoren

Publications (3)

Publication Number Publication Date
EP0325139A2 EP0325139A2 (fr) 1989-07-26
EP0325139A3 EP0325139A3 (en) 1990-10-03
EP0325139B1 true EP0325139B1 (fr) 1994-03-30

Family

ID=6345418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89100296A Expired - Lifetime EP0325139B1 (fr) 1988-01-16 1989-01-10 Dispositif de contact monté dans une paroi de matériaux isolants pour sélecteurs de prises de transformateurs à prises

Country Status (9)

Country Link
EP (1) EP0325139B1 (fr)
JP (1) JP2785130B2 (fr)
KR (1) KR970010989B1 (fr)
CN (1) CN1016021B (fr)
AT (1) ATE103735T1 (fr)
DE (2) DE3801152A1 (fr)
ES (1) ES2050722T3 (fr)
HU (1) HU201172B (fr)
IN (1) IN172230B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3936420A1 (de) * 1989-11-02 1991-05-08 Reinhausen Maschf Scheubeck Kontaktanordnung mit abschirmung fuer stufenschalter von stufentransformatoren
DE4138000C1 (fr) * 1991-11-19 1993-03-04 Maschinenfabrik Reinhausen Gmbh, 8400 Regensburg, De
DE4236528C2 (de) * 1991-11-19 1993-12-16 Reinhausen Maschf Scheubeck Kontaktanordnung und Formfeder zur Befestigung dieser Kontaktanordnung
DE4239188C2 (de) * 1992-11-21 1995-08-03 Tele Plast Bleyer Und Gaertner Fassung für einen metallischen Kontaktstift
DE10344142B3 (de) * 2003-09-24 2005-02-10 Maschinenfabrik Reinhausen Gmbh Laststufenschalter mit Motorantrieb
DE102004041317B3 (de) * 2004-08-26 2005-10-20 Reinhausen Maschf Scheubeck Kontaktanordnung
ITVI20070199A1 (it) * 2007-07-16 2009-01-17 Comem Spa Dispositivo di connessione amovibile per commutatori a vuoto per trasformatori elettrici.
EP2637186B1 (fr) * 2012-03-07 2014-09-17 ABB Technology Ltd Robinet sélecteur et procédé d'assemblage d'un changeur de prises
EP3086342A1 (fr) 2015-04-21 2016-10-26 ABB Technology Ltd Contact fixe pour un changeur de prise et procédé de montage d'une cosse de câble sur celui-ci

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL94688C (fr) * 1958-05-02 1960-06-15
DE1763569B2 (de) * 1968-06-25 1971-11-04 Oelgefaess fuer lastumschalter von stufenschaltern fuer regeltransformatoren
DE2059638A1 (de) * 1970-12-04 1972-06-08 Reinhausen Maschf Scheubeck Anschlusskontaktstueck fuer Lastumschalter von Stufenschaltern an Regeltransformatoren
DE7121024U (de) * 1971-05-29 1971-08-26 Gebrueder Scheubeck Kg Kontaktanordnung fuer stufenschalter von regeltransformatoren
AT342717B (de) * 1975-11-07 1978-04-25 Elin Union Ag Elektrode zum kontaktanschluss fur wahler, wender od.dgl.
DE7810069U1 (de) * 1978-04-05 1979-09-13 Maschinenfabrik Reinhausen Gebrueder Scheubeck Gmbh & Co Kg, 8400 Regensburg Unter oel betriebener stufenwaehler fuer stufenschalter von stufentransformatoren
AT382476B (de) * 1981-10-02 1987-02-25 Elin Union Ag Sicherung von kontakten

Also Published As

Publication number Publication date
ATE103735T1 (de) 1994-04-15
EP0325139A2 (fr) 1989-07-26
EP0325139A3 (en) 1990-10-03
ES2050722T3 (es) 1994-06-01
CN1016021B (zh) 1992-03-25
DE3801152A1 (de) 1989-07-27
IN172230B (fr) 1993-05-08
KR890012333A (ko) 1989-08-25
CN1035388A (zh) 1989-09-06
JPH01226126A (ja) 1989-09-08
DE58907309D1 (de) 1994-05-05
KR970010989B1 (ko) 1997-07-05
JP2785130B2 (ja) 1998-08-13
DE3801152C2 (fr) 1992-10-01
HU201172B (en) 1990-09-28
HUT51023A (en) 1990-03-28

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