EP3443569B1 - Dispositif de liaison d'un conducteur haute tension à un bobinage d'un appareil électrique - Google Patents

Dispositif de liaison d'un conducteur haute tension à un bobinage d'un appareil électrique Download PDF

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Publication number
EP3443569B1
EP3443569B1 EP17720741.2A EP17720741A EP3443569B1 EP 3443569 B1 EP3443569 B1 EP 3443569B1 EP 17720741 A EP17720741 A EP 17720741A EP 3443569 B1 EP3443569 B1 EP 3443569B1
Authority
EP
European Patent Office
Prior art keywords
socket
flange
plug
winding
conductor
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
EP17720741.2A
Other languages
German (de)
English (en)
Other versions
EP3443569A1 (fr
Inventor
Johann Schlager
Jens Hoppe
Karsten LOPPACH
Thomas Wende
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 Energy Global GmbH and Co KG
Original Assignee
Siemens Energy Global 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 Siemens Energy Global GmbH and Co KG filed Critical Siemens Energy Global GmbH and Co KG
Publication of EP3443569A1 publication Critical patent/EP3443569A1/fr
Application granted granted Critical
Publication of EP3443569B1 publication Critical patent/EP3443569B1/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
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • 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
    • H01F27/2823—Wires
    • H01F27/2828—Construction of conductive connections, of leads
    • 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
    • H01F27/2847—Sheets; Strips
    • H01F27/2852—Construction of conductive connections, of leads
    • 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
    • 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
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • 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
    • H01F27/288—Shielding
    • H01F27/2885—Shielding with shields or electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/10—Connecting leads to windings

Definitions

  • the invention relates to a device for connecting a high-voltage conductor to a winding of an electrical device, the device having a socket for inserting the high-voltage conductor, a socket flange firmly connected to the socket, and spacer elements which extend between the socket flange and a further flange.
  • the invention also relates to an electrical device with a housing which can be filled with insulating liquid and in which at least one winding is arranged.
  • Such a device and such an electrical device are, for example, from WO 2011/113479 A1 known.
  • a device referred to as a multi-contact arrangement which has two sockets which are each mechanically and electrically connected to a flange.
  • the two socket flanges are mechanically linked to one another via spacer bolts, with current bands for the transmission of an electrical current extending between the two socket flanges.
  • means are provided for moving the sockets radially and axially.
  • One of the sockets is connected to a winding line, while the high-voltage conductor of a bushing engages the other socket.
  • the multi-contact arrangement therefore enables an electrical device to be connected to a high-voltage network.
  • a contact arrangement with two sockets is also disclosed, each of which can be connected to a high-voltage line.
  • a strip conductor for carrying an electrical current extends between the sockets.
  • a barrier system made of pressboard is provided for sockets in a power transformer.
  • the object of the invention is to provide a device of the type mentioned at the outset which is simple and inexpensive in terms of its structure and which enables a high-voltage conductor to be connected to the winding of an electrical device quickly and in a technically simple manner.
  • the further flange is a mounting flange and has mounting means for mechanically fastening the device in the electrical device, the socket flange having connection means for mechanical and electrical connection of a winding conductor connected to the winding and only a single socket is provided and the socket flange is connected directly to the winding conductor.
  • the further flange is therefore referred to here as the mounting flange.
  • the mounting flange is free of connection means for the electrical connection of the winding conductor.
  • the winding conductor is rather connected to the socket flange which has the connection means set up for this purpose. In this way, the construction of the device is simplified compared to the prior art.
  • the high-voltage conductor can be connected simply, safely and quickly to the winding of the electrical device.
  • the socket flange is designed to be circumferentially closed, for example, with the socket being arranged concentrically within the annular flange.
  • the socket is firmly connected to the socket flange at certain points or, in a departure from this, is molded onto it.
  • the invention enables the transmission of a higher current with essentially the same dimensioning of the components.
  • the electrical device expediently has a housing which can be filled with an insulating liquid and in which at least one winding is arranged.
  • shields or barrier systems for example made of metal or pressboard, are arranged in the housing, which serve to switch off electrical fields within the housing.
  • a shielding or barrier system expediently also serves to hold the device according to the invention within the housing.
  • the electrical device is, for example, a transformer designed for high voltages or a choke.
  • connection means are set up for connecting a ribbon-shaped winding conductor.
  • a ribbon-shaped winding conductor can be attached to the socket flange, for example, by simply mechanically clamping the ribbon conductor.
  • appropriate clamping means are provided, such as clamping screws, clamping rivets or the like.
  • connection means are provided for connecting the winding conductor.
  • the winding conductor can be connected to the socket flange at several, in the simplest case two points.
  • the winding conductor is split into a number of partial strands in the shape of a fork, for example, so that a redundant connection with the socket flange is made possible.
  • larger currents can be conducted via the device according to the invention, since the current is divided over several connection paths.
  • the spacer elements are rod-shaped or bolt-shaped and extend in a longitudinal direction, wherein they are distributed circumferentially around the closed circumferential socket flange and are arranged parallel to one another.
  • the device forms a cage structure with its mounting and socket flanges and its spacer elements. This cage structure is simple in its construction and, moreover, allows quick assembly for establishing a connection between a winding in a housing filled with insulating liquid and an air-insulated high-voltage line.
  • the spacer elements are attached to the socket flange with play.
  • the socket transversely to its longitudinal orientation and, moreover, to incline or, in other words, to tilt it with respect to a virtual longitudinal axis of the cage structure together with the socket flange.
  • the mobility of the socket is made possible in a cost-effective manner within the scope of the invention.
  • the spacer elements are therefore not firmly screwed to the socket flange. Rather, a loose connection between these two components of the device according to the invention is sufficient to provide the necessary play for tilting and moving in the lateral direction.
  • the socket flange expediently has through bores through which the free end of the respective spacer element extends.
  • the free end is provided, for example, with an internal thread into which a fastening element protruding through the flange engages with its external thread.
  • the through bores have an inner diameter that is larger than the outer diameter of the Fastening element extending through said through hole. This enables it to be moved in the transverse direction.
  • the through-hole between a shoulder which is formed on the spacer element and said fastening element can be displaced in the longitudinal direction of the spacer element.
  • the shoulder can, for example, also be the end face of the spacer element, so that only the fastening element extends through the through hole.
  • the shoulder is expediently dimensioned so that it cannot be inserted into the through hole.
  • At least one pre-alignment rod is provided which extends between the socket flange and the mounting flange.
  • Each pre-alignment rod is less mechanically strong than the spacer elements. Rather, it has a mechanical strength that is sufficient to ensure a secure hold of the socket with respect to the mounting flange in the unloaded state.
  • the device according to the invention is designed, for example, to be rotationally symmetrical.
  • each pre-alignment rod is pliable, particularly plastically pliable, and can be easily bent during assembly, retaining its shape after being bent. By inclining and / or shifting the socket flange to the side, the socket can therefore be aligned to match the high-voltage conductor. This makes it easier to insert the high-voltage conductor into the socket.
  • the spacer elements and / or each pre-alignment rod are made, for example, of a suitable metal such as copper.
  • the mounting flange is advantageously connected to a shield of the winding connection conductor.
  • the shielding of the winding connection conductor is, for example, a tubular shield, with one or more strip conductors extend within the tubular shield.
  • the tubular shield is, for example, a metallic shield electrode.
  • any other high-voltage conductor can also be inserted into the socket.
  • a transformer or a choke can be considered as the electrical device.
  • FIG. 1 shows an embodiment of the device according to the invention in a perspective view.
  • the device 1 has a socket 2 which is firmly connected to a socket flange 3.
  • the socket flange 3 runs circumferentially closed around the socket 2 and has an inner through opening 4 for receiving the socket 2.
  • the inner wall of the socket 2 delimits a socket cavity which has a circular cylindrical contour and an inner diameter which is slightly larger than the outer diameter of the high-voltage conductor to be inserted.
  • the connection between the socket 2 and the socket flange 3 is, for example, a conventional welded connection. In a departure from this, however, the socket flange 3 can also be integrally formed on the socket 2.
  • the socket flange 3 is connected to a mounting flange 6 via spacer elements 5.
  • the spacer elements 5 are designed as circular cylindrical rods, four spacer elements 5 being arranged symmetrically around the circumference of the socket flange 3 and the mounting flange 6.
  • Fastening means 7 are provided to connect the spacer element 5 and the socket flange 3 or the mounting flange 6 Figure 1
  • the embodiment shown is a simple screw 7.
  • the mounting flange 6 has additional fastening means 7 in the form of screws 7, which extend through through bores provided in the mounting flange 6, so that in Figure 1 whose free end can be seen. Said free end is provided with an external thread.
  • a pre-alignment rod 8 can be seen, which has a small outer diameter compared to the spacer elements 5. In other words, the mechanical strength of the pre-alignment rod 8 is significantly smaller than that of a spacer element 5.
  • the pre-alignment rod 8 also extends between the socket flange 3 and the mounting flange 6 and is firmly connected to them. Like the spacer elements 5, it is expediently made of copper.
  • the through bores in the socket flange 3 for fastening the respective Spacer element 5 have a diameter which is greater than the outer diameter of the portion of the spacer element 5 which extends through the through hole.
  • the socket flange 3 can be displaced in the radial direction, but the alignment rod 8 is slightly bent.
  • each spacer element 5 forms a shoulder (not shown in the figures), the outer diameter of which is greater than the inner diameter of the through-hole of the socket flange.
  • the socket flange 3 can therefore be displaced in the longitudinal direction, that is to say axially, between the shoulder and the head of the screw 7. Because of this play in the axial direction, the socket 2 can also be pivoted. In other words, the insertion angle for the high-voltage conductor can be changed. This considerably simplifies the assembly of the device.
  • FIG 2 is the device according to Figure 1 shown in an assembled position. It can be seen that the mounting flange 6 is firmly attached to a tubular shielding electrode.
  • the tubular shielding electrode has a fastening flange 10, which is designed to be complementary in shape to the mounting flange 6 of the device 1 according to the invention.
  • a ribbon-shaped winding conductor 11 extends inside a tubular shielding 9 as a shielding or shielding electrode and is split into two conductor sections 13 and 14 at a branching point 12 in the form of a fork.
  • the free end of each conductor section 13 or 14 extends as far as the connection means 15, which are each set up for the mechanical and electrical connection of the conductor section 13 or 14 to the socket flange 3.
  • the socket flange 3 is connected directly to the winding conductor 11.
  • the cage structure consisting of the mounting flange and socket flange as well as the spacer elements is used for easy and quick attachment of the socket 2 to the tubular shielding electrode 9.
  • the high-voltage conductor 16 inserted into the socket 2 can also be seen. It is also shown that the socket flange 3 is arranged offset with respect to a central axis 17; this takes place by a lateral or, in other words, radial displacement of the socket flange 2 to facilitate the insertion of the high-voltage conductor 16.
  • FIG 2 a further metallic shield 18 can be seen, which extends concentrically and circumferentially closed around the device 1 according to the invention.
  • the shielding 18, like the tubular shielding electrode 9, is arranged by a barrier system (not shown in the figures) made of pressboard within an electrical device, which is also not shown in the figures.
  • Figure 3 shows the device according to Figure 1 , however, the high-voltage bushing 19 can be seen, the high-voltage conductor 16 of which is inserted into the socket 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Cable Accessories (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Insulators (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Coils Of Transformers For General Uses (AREA)

Claims (10)

  1. Dispositif (1) de liaison d'un conducteur (16) de haute tension à un enroulement d'un appareil électrique, comprenant
    - une fiche (2) femelle pour l'introduction du conducteur (16) de haute tension,
    - une bride (3) de bride femelle, reliée fixement à la fiche de femelle et
    - des éléments (5) d'entretoisement, qui s'étendent entre la bride (3) de la fiche femelle et une autre bride (6)
    caractérisés en ce que l'autre bride est une bride (6) de montage et dispose de moyens (7) de montage pour la fixation mécanique du dispositif dans l'appareil électrique, dans lequel la bride (3) de la fiche femelle a des moyens (15) de raccordement pour le raccordement mécanique et électrique d'un conducteur (11) de l'enroulement, relié à l'enroulement, et dans lequel il n'est prévu qu'une fiche (2) femelle unique et la bride (3) de la fiche femelle est reliée directement au conducteur (11) de l'enroulement.
  2. Dispositif (1) suivant la revendication 1,
    caractérisé en ce que
    les moyens (15) de raccordement sont agencés pour le raccordement d'un conducteur d'enroulement en forme de ruban.
  3. Dispositif (1) suivant la revendication 1 ou 2,
    caractérisé en ce qu'il
    est prévu au moins deux moyens (15) de raccordement pour le raccordement du conducteur de l'enroulement.
  4. Dispositif (1) suivant l'une des revendications précédentes, caractérisé en ce que les éléments (5) d'entretoisement sont constitués en forme de barreau ou d'axe et s'étendent dans une direction longitudinale, dans lequel ils sont disposés, de manière répartie sur le pourtour, autour de la bride (3) de la fiche femelle faisant le tour de manière sans fin et s'étendent en étant parallèles les uns aux autres.
  5. Dispositif (1) suivant l'une des revendications précédentes, caractérisé en ce que les éléments (5) d'entretoisement sont fixés avec du jeu à la bride (3) de la fiche femelle.
  6. Dispositif (1) suivant la revendication 5,
    caractérisé en ce qu'il est prévu au moins un barreau (8) donnant préalablement la direction, qui s'étend entre la bride (3) de la fiche femelle et la bride (6) de montage.
  7. Appareil électrique ayant une enveloppe, qui peut être remplie d'un liquide isolant et dans laquelle est disposé au moins un enroulement,
    caractérisé par
    un dispositif (1) suivant l'une des revendications précédentes.
  8. Appareil électrique suivant la revendication 7,
    caractérisé en ce que la bride (6) de montage est reliée à un blindage (9, 10) du conducteur (11) de l'enroulement.
  9. Appareil électrique suivant la revendication 7 ou 8,
    caractérisé en ce que le dispositif (1) est disposé à l'intérieur d'une électrode (18) tubulaire de blindage.
  10. Appareil électrique suivant l'une des revendications 7, 8 ou 9, caractérisé en ce que le conducteur (16) de haute tension d'une traversée (19) de haute tension est inséré dans la fiche (2) femelle.
EP17720741.2A 2016-05-25 2017-04-25 Dispositif de liaison d'un conducteur haute tension à un bobinage d'un appareil électrique Active EP3443569B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016209132.8A DE102016209132A1 (de) 2016-05-25 2016-05-25 Vorrichtung zum Verbinden eines Hochspannungsleiters mit einer Wicklung eines elektrischen Geräts
PCT/EP2017/059696 WO2017202558A1 (fr) 2016-05-25 2017-04-25 Dispositif de liaison d'un conducteur haute tension à un bobinage d'un appareil électrique

Publications (2)

Publication Number Publication Date
EP3443569A1 EP3443569A1 (fr) 2019-02-20
EP3443569B1 true EP3443569B1 (fr) 2021-06-09

Family

ID=58664673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17720741.2A Active EP3443569B1 (fr) 2016-05-25 2017-04-25 Dispositif de liaison d'un conducteur haute tension à un bobinage d'un appareil électrique

Country Status (4)

Country Link
EP (1) EP3443569B1 (fr)
CN (1) CN109155177B (fr)
DE (1) DE102016209132A1 (fr)
WO (1) WO2017202558A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018201477A1 (de) * 2018-01-31 2019-08-01 Siemens Aktiengesellschaft Elektrisches Gerät mit Zwischenstück

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7926743U1 (de) * 1979-09-20 1979-12-20 Siemens Ag, 1000 Berlin Und 8000 Muenchen Induktiver Spannungswandler für eine voUisolierte, metallgekapselte Hochspannungsschaltanlage
JPS5936909A (ja) 1982-04-05 1984-02-29 Hitachi Ltd 静止誘導電器の接続装置
US4671324A (en) * 1982-09-01 1987-06-09 Neill David C Jack bolt assembly
DD279337A1 (de) * 1988-12-30 1990-05-30 Liebknecht Transformat Durchfuehrungsanschluss an eine hochspannungsdurchfuehrung
DE4241656A1 (de) * 1992-12-04 1994-11-17 Tro Transformatoren Und Schalt Verfahren zum Anschließen einer Wicklungsausleitung eines Transformators an einen Durchführungsleiter
EP1903583B1 (fr) * 2006-09-25 2014-10-29 Siemens Aktiengesellschaft Traversée à forte intensité pour transformateur
EP2548209B1 (fr) 2010-03-16 2016-11-16 Siemens Aktiengesellschaft Système de conduit pour un transformateur haute tension
KR101080632B1 (ko) * 2011-08-17 2011-11-08 신현기전 주식회사 고전압용 리드
CN204905019U (zh) * 2015-07-28 2015-12-23 北京天威瑞恒高压套管有限公司 插拔式变压器套管

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN109155177B (zh) 2021-10-29
BR112018073899A2 (pt) 2019-02-26
CN109155177A (zh) 2019-01-04
DE102016209132A1 (de) 2017-11-30
EP3443569A1 (fr) 2019-02-20
WO2017202558A1 (fr) 2017-11-30

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