EP2850624B1 - Transformateur équipé d'un compartiment à traversée - Google Patents

Transformateur équipé d'un compartiment à traversée Download PDF

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Publication number
EP2850624B1
EP2850624B1 EP12721819.6A EP12721819A EP2850624B1 EP 2850624 B1 EP2850624 B1 EP 2850624B1 EP 12721819 A EP12721819 A EP 12721819A EP 2850624 B1 EP2850624 B1 EP 2850624B1
Authority
EP
European Patent Office
Prior art keywords
bushing
tank
cover
compartment
transformer
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
EP12721819.6A
Other languages
German (de)
English (en)
Other versions
EP2850624A1 (fr
Inventor
Antal Olah
Zsolt SUKOSD
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to PL12721819.6T priority Critical patent/PL2850624T3/pl
Publication of EP2850624A1 publication Critical patent/EP2850624A1/fr
Application granted granted Critical
Publication of EP2850624B1 publication Critical patent/EP2850624B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01F27/02—Casings
    • H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements

Definitions

  • the present invention relates to an electrical transformer, especially a distribution transformer, with a Bushing Compartment.
  • the bushing compartment of electrical transformers is arranged on the cover of the transformer tank.
  • the tank is hermetically sealed by placing a sealing gasket between the cover, usually a flat cover, and a pot-shaped casing portion.
  • the bushing compartment comprises electrically insulated conductors extending through an opening of the tank and having substantial vertical oriented outer terminals. Electrical connection of the terminals is easily possible with the bushing compartment arranged on the top of the tank.
  • an electrical transformer comprising a tank having sidewall portions, a cover and a bottom portion, whereby the cover is carrying a first bushing assembly and wherein a side portion of the tank has an opening.
  • the magnetic core and a winding assembly are disposed in a usual way in this tank.
  • a bushing compartment is attached on the side wall portion of the tank having the opening. The attachment is arranged in a way to seal the opening.
  • the bushing compartment itself has sidewalls, a cover and a bottom portion, whereby the bottom portion of said bushing compartment having a second opening therein for receiving a second bushing assembly.
  • the second bushing assembly having electrical conductor means being mounted through the second opening and having first terminals being encased and electrically connected with the winding assembly.
  • the electrical conductor means further have second terminals remaining outside of the bottom portion of the bushing compartment.
  • the transformer according to the invention has a bushing assembly arranged on two levels: on a first level first bushings on the cover of the transformer, and on a second level second bushings arranged on a bottom portion of an attached bushing compartment (supplementary casing), whereby electrical terminals of the second bushings facing downwardly.
  • the bottom portion of the attached bushing compartment brings the advantage of a second carrier for further electrical conductors, which are required in high current applications, like setting of proper connection group by off-load and / or off-circuit operation, selection of proper tapping of high current winding in on-load condition ( DE 102008064485 ) or off-load condition, application for external control and measurement.
  • the covers of the tank are arranged in first plane and the bottom portion of the bushing compartment is arranged in a second plane, whereby the planes having a vertical distance to each other. Electrical terminals of the bushing assembly are arranged in niche and not exposed to be damaged and easy accessible.
  • Connecting the second terminals of the second bushing assembly can be easily accomplished when they are oriented vertically and substantially parallel to each other.
  • the second bushing assembly comprises a flat insulating part acting as a carrier for the electrical conductor means.
  • Fig. 1 shows a front view, a side view and a top view of a preferred embodiment of a distribution transformer 1 according to the invention.
  • the transformer 1 has casing or tank 2 made of steel, having side wall portions 3, a cover 4 and a bottom portion 5.
  • a first bushing assembly 6 is attached on the cover 4, having terminals 7 for primary and secondary electrical connection of the transformer 1.
  • a bushing compartment 11 is welded on the side wall 3 of the tank 2.
  • the cover 13 of the bushing compartment 11 and the cover 4 of the tank 2 are arranged in a horizontal plane 20 and formed integrally in one piece.
  • the bottom portion 14 of the bushing compartment 11 is arranged in a plane 21.
  • the bottom portion 14 has an opening 15, adapted for receiving a second bushing assembly 16.
  • the transformer according to the invention has a bushing assembly arranged in two levels: a first level in plane 20, a second level in plane 21.
  • the two-level construction of a bushing assembly opens the possibility for arrangement of further connection means required in high current applications. Electrical terminals 19 facing downwardly from the bottom portion 14 of the bushing assembly 11 are protected in a niche.
  • the bushing assembly 16 comprises electrical conductor means 17 having first terminals 18 and second terminals 19.
  • the second terminals 19 extend outward of the bushing compartment 11.
  • the terminals 19 are oriented substantially vertically and parallel to each other.
  • Fig. 2 shows a partial sectional drawing of the front and side view of Fig 1 .
  • the bushing compartment 11 is attached on the side wall 3 of the tank 2 there is an opening 8 in the side wall 3. This opening 8 is sealed by welded side wall portions 12 and bottom portion 14 of the bushing compartment 11.
  • Flexible conductors connect the terminals 18 through the opening 8 with the winding assembly 10 located on the magnetic core 9 in the tank 2.
  • Fig. 3 shows an enlarged view of detail "X" in Fig. 2 .
  • the side walls of the bushing compartment 11 and bottom portion 14 are pot-shaped.
  • the bottom portion 14 has the opening 15 for receiving the second bushing assembly 16.
  • a plate-shaped insulating part 23 acts as a carrier for electrical conductors 17.
  • a sealing gasket 24 is located between the insulating part 23 and the bottom portion 14. The insulating part 23 is fixed with screws.
  • the invention provides sufficient space for electrical connections required in additional high current applications.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)

Claims (8)

  1. Transformateur électrique, comprenant :
    un conteneur (2) présentant des parties paroi latérale (3), un couvercle (4) et une partie fond (5), avec le couvercle (4) supportant un premier ensemble de bague (6) et dans lequel une partie paroi latérale (3) présente une ouverture (8) ;
    un noyau magnétique (9) et un ensemble bobinage (10) agencés dans le conteneur (2) ;
    un compartiment à bague (11) fixé sur la partie paroi latérale (3) et fourni de manière à fermer de manière étanche l'ouverture (8) ;
    ledit compartiment à bague (11) présentant des parois latérales (12), un couvercle (13) et une partie fond (14), avec la partie fond (14) dudit compartiment à bague (11) présentant une deuxième ouverture (15) en son sein afin de recevoir un deuxième ensemble de bague (16),
    ledit deuxième ensemble de bague (16) présentant un moyen conducteur électrique (17) monté à travers la deuxième ouverture (15) et présentant des premières bornes (18) enchâssées et raccordées électriquement à l'ensemble bobinage (10) et des deuxièmes bornes (19) demeurant à l'extérieur de la partie fond (14) dudit compartiment à bague (11),
    caractérisée en ce que la partie couvercle (4) du conteneur (2) est agencée dans un premier plan (20) et la partie fond (14) du compartiment à bague (11) est agencée dans un deuxième plan (21), avec les plans (20, 21) présentant une distance verticale (22) l'un par rapport à l'autre, dans lequel le couvercle (4) du conteneur (2) et le couvercle (13) du compartiment à bague (11) sont agencés dans le premier plan (20), dans lequel les deuxièmes bornes (19) sont orientées de manière essentiellement verticale et parallèle les unes par rapport aux autres.
  2. Transformateur selon la revendication 1, dans lequel ledit deuxième ensemble de bague (16) comprend une pièce isolante plane (23) faisant office de support pour le moyen conducteur électrique (17).
  3. Transformateur selon la revendication 2, dans lequel, dans une position montée du deuxième ensemble de bague (16), un joint d'étanchéité (34) est agencé entre la pièce isolante (3) et la partie fond (14) du compartiment à bague (11).
  4. Transformateur selon la revendication 3, dans lequel la pièce isolante (23) du deuxième ensemble de bague (16) est fixée sur la partie fond (14) grâce à des vis.
  5. Transformateur selon l'une quelconque des revendications précédentes, dans lequel le compartiment à bague (11) et le conteneur (2) sont réalisés en acier.
  6. Transformateur selon la revendication 5, dans lequel le compartiment à bague (11) est soudé sur la partie paroi latérale (3) du conteneur (2).
  7. Transformateur selon la revendication 5, dans lequel le couvercle (4) du conteneur (2) et le couvercle (13) du compartiment à bague (11) sont réalisés d'une seule pièce.
  8. Procédé de fabrication d'un transformateur électrique comprenant les étapes consistant à :
    a. former un conteneur (2) présentant des parties paroi latérale, dessus et fond (2, 3, 14), avec un couvercle (13) présentant un ensemble de bague (6) et une partie paroi latérale présentant une ouverture (8) ;
    b. monter un compartiment à bague (11) présentant des parties paroi latérale, dessus et fond sur la partie paroi latérale du conteneur et fermer ainsi de manière étanche l'ouverture (8), avec une partie fond (14) du compartiment à bague (11) présentant une deuxième ouverture (15) conçue pour recevoir un deuxième ensemble de bague (16), dans lequel la partie couvercle (4) du conteneur (2) est agencée dans un premier plan (20) et la partie fond (14) du compartiment à bague (11) est agencée dans un deuxième plan (21), avec les plans (20, 21) présentant une distance verticale (22) l'un par rapport à l'autre, dans lequel le couvercle (4) du conteneur (2) et le couvercle (13) du compartiment à bague (11) sont agencés dans le premier plan (20), dans lequel les deuxièmes bornes (19) sont orientées de manière essentiellement verticale et parallèle les unes par rapport aux autres ;
    c. raccorder des premières bornes (18) du deuxième ensemble de bague (16) à des fils prolongeant l'ensemble bobinage (10) ;
    d. fournir un noyau magnétique (9) et l'ensemble bobinage (10) dans le conteneur (2) ;
    e. fermer de manière étanche le deuxième ensemble de bague (16) au moyen d'un joint d'étanchéité (24) au niveau du deuxième plan (21) ;
    f. fermer de manière étanche le couvercle (4, 13) sur le conteneur (2) au niveau du premier plan (20) ;
    g. raccorder les deuxièmes bornes (19) aux bornes d'un dispositif d'une application haute intensité.
EP12721819.6A 2012-05-14 2012-05-14 Transformateur équipé d'un compartiment à traversée Active EP2850624B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12721819.6T PL2850624T3 (pl) 2012-05-14 2012-05-14 Transformator z pomieszczeniem dla izolatora przepustowego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/058884 WO2013170873A1 (fr) 2012-05-14 2012-05-14 Transformateur équipé d'un compartiment à traversée

Publications (2)

Publication Number Publication Date
EP2850624A1 EP2850624A1 (fr) 2015-03-25
EP2850624B1 true EP2850624B1 (fr) 2016-04-13

Family

ID=46124334

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12721819.6A Active EP2850624B1 (fr) 2012-05-14 2012-05-14 Transformateur équipé d'un compartiment à traversée

Country Status (3)

Country Link
EP (1) EP2850624B1 (fr)
PL (1) PL2850624T3 (fr)
WO (1) WO2013170873A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016207405A1 (de) * 2016-04-29 2017-11-02 Siemens Aktiengesellschaft Transformator mit einsteckbaren Hochspannungsdurchführungen
DE102018204350A1 (de) * 2018-03-21 2019-09-26 Siemens Aktiengesellschaft Anordnung zur Durchführung mehrerer elektrischer Anschlüsse durch eine Wand eines elektrischen Transformators

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621426A (en) * 1970-11-12 1971-11-16 Westinghouse Electric Corp Transformer with bushing compartment
US3936592A (en) * 1975-01-02 1976-02-03 Westinghouse Electric Corporation Electrical bushing having a central conductor with large planar terminal portions at each end
CA2375584C (fr) * 2002-03-07 2009-01-06 Ernst H. Wiebe Enceinte de dispositif electrique de traitement des hautes tensions
DE102008064485A1 (de) 2008-12-22 2010-06-24 Siemens Aktiengesellschaft Stufenschalter für Mittel-Niederspannungstransformatoren

Also Published As

Publication number Publication date
EP2850624A1 (fr) 2015-03-25
WO2013170873A1 (fr) 2013-11-21
PL2850624T3 (pl) 2016-10-31

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