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EP1519391B1 - Transformateur encapsulé en résine - Google Patents

Transformateur encapsulé en résine Download PDF

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Publication number
EP1519391B1
EP1519391B1 EP04090341.1A EP04090341A EP1519391B1 EP 1519391 B1 EP1519391 B1 EP 1519391B1 EP 04090341 A EP04090341 A EP 04090341A EP 1519391 B1 EP1519391 B1 EP 1519391B1
Authority
EP
European Patent Office
Prior art keywords
winding
windings
taps
regions
voltage
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
EP04090341.1A
Other languages
German (de)
English (en)
Other versions
EP1519391A2 (fr
EP1519391A3 (fr
Inventor
Rudolf Hanov
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
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP1519391A2 publication Critical patent/EP1519391A2/fr
Publication of EP1519391A3 publication Critical patent/EP1519391A3/fr
Application granted granted Critical
Publication of EP1519391B1 publication Critical patent/EP1519391B1/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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/327—Encapsulating or impregnating

Definitions

  • the invention relates to a casting resin transformer according to the preamble of claim 1.
  • the DE 26 34 21 discloses a winding for controllable transformers, one part of which is permanently switched on and the other part of which is provided with switching stages which are arranged symmetrically to one another. According to the local invention, the switching stages of the high-voltage winding are arranged with respect to the center plane, that the winding parts selected by means of the tap changer are arranged symmetrically to each other and thus canceling with respect to the force effect.
  • Another cast resin transformer is from the US 4,533,892 A known.
  • an axial cooling channel is formed between the areas not provided with tappings and the areas provided with taps of the two winding parts. This leads to an improved cooling effect of the transformer.
  • the partial windings forming the taps of the two winding parts are advantageously electrically connected to each other at their respective two ends.
  • a particularly simple structure is obtained if, on the one hand, the mutually facing ends and, on the other hand, the mutually remote ends of the part-windings of the two winding parts provided with the taps in the axial direction are each at the same potential. This is achieved by non-disabling bow-shaped conductors.
  • Fig. 1 shows the extending in the axial direction right outer edge 1 of a core of a provided, for example, with three core legs cast resin transformer.
  • the cores are each equipped with the same winding arrangement. Coaxially guided around the core are on the radially inner side of a low-voltage winding and on the radially outer side of a high-voltage winding.
  • the low voltage winding and the high voltage winding are arranged in the radial direction at a distance from each other and thus form an axial cooling channel. 2
  • the low-voltage winding consists of two axially extending, electrically connected in parallel winding parts, which are each formed of two successive in the axial direction part windings 3.1, 3.2 and 4.1, 4.2.
  • the partial winding 3.1 of the first winding part spatially within the part winding 4.1 of the second winding part and the part winding 3.2 of the first winding part are spatially arranged outside the part winding 4.2 of the second winding part.
  • the high-voltage winding also has two extending in the axial direction, electrically connected in parallel Winding on, each containing two in the axial direction part windings 5.1, 5.2 and 6.1, 6.2 included. Their spatial assignment is as in the low-voltage winding such that the two partial windings are 5.1 and 5.2 or 6.1 and 6.2 of a winding axially one behind the other and that the partial winding 5.1 of the first winding part concentric of the partial winding 6.1 of the second winding part and the partial winding 6.2 of the second winding part are surrounded concentrically by the partial winding 5.2 of the first winding part.
  • the winding parts of the high-voltage winding additionally each contain a third partial winding 5.3 or 6.3.
  • These partial windings 5.3 and 6.3 are on the one hand connected in series with the other part windings 5.1 and 5.2 or 6.1 and 6.2 of their winding part, on the other hand but connected directly at their respective two ends by conductors 7 and 8, so that they are connected directly parallel to each other.
  • the terminals 9 and 10 of the high-voltage winding are connected on the one hand to a conductor 11 connecting the upper ends of the partial windings 5.1 and 6.1 and on the other hand to the conductor 8.
  • the partial windings 5.3 and 6.3 are each, as Fig. 1 shows, from a plurality of, in the example shown, ten, connected in series coils 12.
  • Each coil 12 is according to Fig. 2 provided with a tap 13; However, the coils 12 may each have a plurality of taps 13.
  • the taps 13 are opposite to in Fig. 1 shown leads to the sub-windings 5.3 and 6.3 offset in the circumferential direction by 180 ° and therefore in Fig. 1 not shown.
  • the partial windings 5.3 and 6.3 are identical to one another, so that each coil 12 or tap 13 of the partial winding 5.3 corresponds to a coil 12 or tapping 13 of the partial winding 6.3, which is at the same potential.
  • the taps 13 are connected to terminals of a switching strip 14. These contains internal connection lines 15 such that the two taps 13 lying at the same potential of the partial windings 5.3 and 6.3 are connected to each other. Each with two lying at the same potential taps 13 connecting line 15 is guided to an external terminal of the switching strip 14, which in turn is connected to a terminal of a tap changer 16 in connection.
  • the sub-windings 5.3 and 6.3 are also arranged concentrically to the core and the partial windings 6.1 and 5.2, wherein they are in the axial direction one behind the other.
  • the two conductors 7 and 8 respectively connect the opposite and opposite ends of the partial windings 5.3 and 6.3 via terminal supports 17, 18, 19 and 20.
  • An auxiliary support 21 serves to fix a conductor 22 between the terminal 9 and the conductor 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Ac-Ac Conversion (AREA)

Claims (6)

  1. Transformateur encapsulé de résine comprenant au moins un enroulement de sous-tension et au moins un enroulement de surtension l'entourant coaxialement et ayant deux parties d'enroulement qui sont montées en parallèle l'une avec l'autre, et qui ont respectivement plusieurs prises pour un réglage souhaité de la surtension,
    - dans lequel chaque partie d'enroulement a des sous-enroulements ( 5.1, 5.2, 5.3 et 6.1, 6.2, 6.3 ), les sous-enroulements de chaque partie ( 5.1, 5.2, 5.3 et 6.1, 6.2, 6.3 ) d'enroulement formant un circuit série,
    - dans lequel les parties, pourvues des prises ( 13 ), des deux parties d'enroulement, sont formées par respectivement un sous-enroulement ( 5.3, 6.3 ) ayant respectivement un certain nombre de bobines ( 12 ), et ces sous-enroulements ( 5.3, 6.3 ) entourent coaxialement les parties non pourvues des prises ( 13 ) des deux parties d'enroulement, et sont disposées l'une derrière l'autre dans la direction axiale, caractérisé
    - en ce que les sous-enroulements ( 5.3, 6.3 ) qui forment les parties pourvues des prises ( 13 ) des deux parties d'enroulement, sont réalisées pareilles de sorte qu'à chaque bobine ( 12 ) ou prise ( 13 ) des premiers de ces sous-enroulements ( 5.3 ) correspond une bobine ( 12 ) ou une prise ( 13 ) des deuxièmes de ces sous-enroulements ( 6.3 ) qui sont au même potentiel, les prises ( 13 ) au même potentiel de ces deux sous-enroulements ( 5.3, 6.3 ) étant reliés à une borne commune d'un commutateur ( 16 ) à gradins, réglable pour régler la tension,
    - en ce que les parties non pourvues des prises ( 13 ) des deux parties d'enroulement sont subdivisées respectivement en au moins deux sous-enroulements ( 5.1, 5.2 ; 6.1, 6.2 ) axiaux, ces sous-enroulements ( 5.1, 5.2 ; 6.1, 6.2 ) axiaux étant disposés en alternance sur le côté intérieur radialement et le côté extérieur radialement de l'enroulement de surtension.
  2. Transformateur suivant la revendication 1, caractérisé en ce que un conduit ( 23 ) axial de refroidissement est formé entre les parties pourvues de prises ( 13 ) et les parties qui ne sont pas pourvues de prises ( 13 ) des deux parties d'enroulement.
  3. Transformateur suivant l'une des revendications 1 ou 2, caractérisé en ce que les parties pourvues des prises ( 13 ) des sous-enroulements ( 5.3, 6.3 ) formant les deux parties d'enroulement sont reliées en parallèle électriquement à leurs deux extrémités respectives.
  4. Transformateur suivant la revendication 3, caractérisé en que les extrémités tournées l'une vers l'autre des sous-enroulements ( 5.3, 6.3 ) montés l'un derrière l'autre dans la direction axiale des parties pourvues des prises ( 13 ) des deux parties d'enroulement sont au même potentiel.
  5. Transformateur suivant la revendication 3 ou 4, caractérisé en ce que les extrémités éloignées l'une de l'autre des sous-enroulements ( 5.3, 6.3 ) disposés l'un derrière l'autre dans la direction axiale des parties pourvues des prises ( 13 ) des deux parties d'enroulement sont au même potentiel.
  6. Transformateur suivant l'une des revendications précédentes, caractérisé en ce qu'il est prévu une réglette ( 14 ) de commutation pour la liaison des prises ( 13 ) au même potentiel des deux parties d'enroulement entre elles et à une borne associée du commutateur ( 16 ) à gradins.
EP04090341.1A 2003-09-25 2004-09-06 Transformateur encapsulé en résine Expired - Lifetime EP1519391B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003145659 DE10345659B4 (de) 2003-09-25 2003-09-25 Gießharz-Transformator
DE10345659 2003-09-25

Publications (3)

Publication Number Publication Date
EP1519391A2 EP1519391A2 (fr) 2005-03-30
EP1519391A3 EP1519391A3 (fr) 2006-03-01
EP1519391B1 true EP1519391B1 (fr) 2016-11-02

Family

ID=34178036

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04090341.1A Expired - Lifetime EP1519391B1 (fr) 2003-09-25 2004-09-06 Transformateur encapsulé en résine

Country Status (2)

Country Link
EP (1) EP1519391B1 (fr)
DE (1) DE10345659B4 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4533892A (en) * 1982-06-23 1985-08-06 Hitachi, Ltd. Split structure type transformer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE263421C (fr) * 1911-07-04 1913-09-05
DE3338149A1 (de) * 1983-10-20 1985-05-02 Transformatoren Union Ag, 7000 Stuttgart Schaltungsanordnung fuer leistungsgrosstransformatoren
DE3936937A1 (de) * 1989-11-06 1991-05-08 Siemens Ag Wicklungsanordnung fuer giessharztransformatoren
DE19809572C2 (de) * 1998-03-05 2000-06-21 Siemens Ag Gießharz-Transformator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4533892A (en) * 1982-06-23 1985-08-06 Hitachi, Ltd. Split structure type transformer

Also Published As

Publication number Publication date
DE10345659B4 (de) 2005-11-10
EP1519391A2 (fr) 2005-03-30
DE10345659A1 (de) 2005-04-28
EP1519391A3 (fr) 2006-03-01

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