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WO2019149460A1 - Appareil électrique doté d'une pièce intermédiaire - Google Patents

Appareil électrique doté d'une pièce intermédiaire Download PDF

Info

Publication number
WO2019149460A1
WO2019149460A1 PCT/EP2019/050023 EP2019050023W WO2019149460A1 WO 2019149460 A1 WO2019149460 A1 WO 2019149460A1 EP 2019050023 W EP2019050023 W EP 2019050023W WO 2019149460 A1 WO2019149460 A1 WO 2019149460A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
dome
electrical device
intermediate piece
winding
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.)
Ceased
Application number
PCT/EP2019/050023
Other languages
German (de)
English (en)
Inventor
Jonas Claus
Julian Kraus
Stephan Voss
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
Siemens Corp
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 WO2019149460A1 publication Critical patent/WO2019149460A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • H01F27/12—Oil cooling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B5/00—Non-enclosed substations; Substations with enclosed and non-enclosed equipment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/02—Cable terminations

Definitions

  • the invention relates to an electrical device for connection to a high voltage line.
  • An electrical device such as a transformer or a choke, usually has a housing in which at least one winding is arranged. For electrical insulation of the lying at a high voltage potential when operating winding but also for cooling a Iso lierfluid, with which the housing is filled.
  • the entire active part, the ment of a Wick, whose leads and a core is disposed within the housing.
  • the housing has bushings that extend through the housing wall.
  • the projecting into the interior of the housing insertion end of the implementation is connected via a winding connection conductor to the winding.
  • an outdoor connection is used to connect an air-insulated high-voltage line.
  • the housing is dimensioned so that all components can fit in it.
  • the disclosed there transformer has a closed core of a magnetizable material Ma, which is equipped with two core legs, which are connected to each other via a lower and upper yoke. Each core leg is surrounded by only one winding, one of which is connectable to an outer contact wire and serves as a high-voltage winding.
  • a conductor bushing is vorgese hen, which is fixedly mounted on a dome.
  • the hollow cylindrical dome is molded onto the housing so that the internal volume of the housing is enlarged by the dome.
  • the conductor lead-through extends with an insertion in the also filled with insulating fluid interior of the dome back and is connected via a winding connection conductor with the Wick development.
  • the prior art electrical device has the disadvantage that the integrally formed on the housing Dom is bulky and leads to problems during installation, especially if the space provided for this purpose is limited.
  • the object of the invention is to provide an electrical device of the initially mentioned type, the housing is compact and can be quickly and effectively installed even with limited space.
  • the invention solves this problem in that the dome is arranged at a distance from the housing and connected via an intermediate piece with this.
  • the dome which serves to accommodate the conductor implementation, not verbun directly to the compact ausgestalte th housing of the electrical device according to the invention the.
  • an intermediate piece is used, which connects the interior of the housing with the interior of the dome.
  • an insertion section of the Lei ter brand installation protrudes into the interior of the dome and is thus surrounded by insulating fluid.
  • the insulating fluid provides not only the cooling for the necessary electrical insulation of the components lying in operation at high voltage and is preferably a liquid, such as a mineral oil or an ester oil.
  • connection between the insertion section and the winding takes place via a winding connection conductor, which extends from the winding through the housing, the hollow intermediate piece and the dome interior to the insertion section of the conductor leadthrough and makes electrical contact there.
  • a winding connection conductor which extends from the winding through the housing, the hollow intermediate piece and the dome interior to the insertion section of the conductor leadthrough and makes electrical contact there.
  • the intermediate piece allows a flexible arrangement of the dome with almost any distance to the housing.
  • the housing can be designed compactly and the dome can be mounted at a location that is adapted to the respective given installation space. In this way, the electrical appliance according to the invention can be easily and conveniently installed in predetermined installation spaces who the.
  • the intermediate piece is designed as a hollow cylinder. It is particularly advantageous if the intermediate piece extends in a longitudinal direction and is configured circular in cross section. In other words, the intermediate piece has a circular outer contour in a cross-sectional view. Such an intermediate piece is easy to manufacture and inexpensive.
  • the intermediate piece is advantageously designed as a connecting pipe or connecting hose.
  • the connecting tube he allows a rigid connection between the housing interior and the interior of the cathedral.
  • the dimensionally stable rigid tube simplifies the implementation of the winding connection conductor, which extends between the winding and the insertion of the Lei ter manage.
  • the Wicklungsan gleichlei ter for example, be laid with the help of on the inside of the tube fastened ended supporters.
  • a connecting hose is flexible and therefore can be bent easily by hand, so that it can be easier in the given space installed on it.
  • the dome limits a cavity
  • the fastening means has on its side facing away from its outer terminal side Be.
  • the dome can be easily and quickly mounted anywhere. Subsequently, the assembly of the inter mediate piece and thus the connection of the Dominnenraums with the housing interior.
  • the dome is open on one side on its attachment side. The one-sided opening allows easy connection with the housing interior.
  • the dome consists of an electrically non-conductive material.
  • the conductor implementation can hen best example of a metallic material.
  • the dome provides the necessary electrical insulation.
  • the intermediate piece is also made of an electrically non-conductive material. This increases theistsfes activity of the electrical device according to the invention even more ter.
  • the intermediate piece is fluid-tightly connected to the dome and the housing.
  • appropriate sealing medium are provided.
  • the spacer has aggregate joserwei se at its two ends via a connector, a screw, a flange or the like. Basically, the way the fluid-tight connec tion between adapter and housing or inter mediate piece and Dom in the context of the invention, however, is arbitrarily executable.
  • the winding connection conductor which extends between the insertion of the bushing and the Wick development, a so-called stranded conductor.
  • the Litzenlei ter is suitably secured in an inner bore of the insertion section of the conductor bushing by crimping.
  • crimping at least one of the components to be bonded together is plastically deformed. The plastic deformation provides a form fit and connects the components permanently together.
  • the dome is mounted on a press plate, which is set up for clamping the ge entire core. Since the core is air-insulated, it extends at least partially outside the housing.
  • the housing is in a cross-sectional view annular or in other words hollow cylindrical and defines a cavity through which the core extends with a core leg.
  • the winding arranged in the annular housing encloses the said core leg.
  • the core leg is connected via an upper and lower yoke with another core leg.
  • the core is disposed outside of the housing and thus kept air-insulated.
  • the press plates are connected to each other via tension elements, with the aid of which the desired pressing force can be generated.
  • each dome is arranged on a side of the press plate facing away from the core.
  • the distance of the press plate to the housing corresponds approximately to the height of the lower or upper yoke. This distance is bridged by the intermediate piece, which thus increases the mecanicvolu men of the housing towards the cathedral.
  • the dome is mounted by means of a mounting flange fluid-tight to the te Pressplat, wherein the pressure plate has a passage opening through which the intermediate piece to the cathedral out he stretches.
  • the dome is arranged on a side facing away from the core of the press plate.
  • FIG. 1 shows an embodiment of the electrical device according to the invention in a side view
  • FIG. 2 shows the dome mounted on a press plate and the intermediate piece extending between the dome and the housing of a partially sectioned side view.
  • FIG. 1 shows an embodiment of the electrical device 1 according to the invention in a side view.
  • the electrical device is designed as a web transformer and has a core 2, which has two legs 3 and 4, which are connected by egg nem lower 5 and upper yoke 6 to form a ge closed magnetic circuit with each other.
  • each core leg 3 or 4 extends through a housing 7, which in each case circumscribes a closed around the respective core leg 3 or 4 respectively
  • Housing outer wall 8 features.
  • the housing 7 has front side housing cover plates 9, which is fluid-tightly connected to the housing outer wall 8 and the housing inner wall, so that the housing 7 can be filled with an insulating fluid, here an ester liquid, which is provided for insulating and cooling of the windings arranged in the housing is.
  • an insulating fluid here an ester liquid
  • the windings are arranged concentrically with each other, wherein an outer winding serves as a high-voltage winding and an inner winding as a low-voltage winding.
  • an outer winding serves as a high-voltage winding and an inner winding as a low-voltage winding.
  • the undervoltage windings are also connected to a consumer ter admiration 10 with a Lei, so that in Figure 1 a total of four conductor bushings 10 can be seen.
  • Each conductor bushing 10 is attached to a free end of a mandrel 11, which is designed as a hollow cylinder and each mounted on a side facing away from the conductor bushing 10 side of a pressure plate 12.
  • each dome 11 has a fastening section, which is designed here as a flange. Deviating from this, however, each dome 11 can also be glued, welded or otherwise connected in a fluid-tight manner to the respective pressure plate 12.
  • the press plates 12 are located on the front side directly on the lower 5 and upper yoke 6 of the core 2 and are clamped together by means of threaded rods 13 designed as tension members.
  • the threaded rods 13 have an Au workedgewinde, which is in engagement with the internal thread of clamping nuts 17. By screwing the clamping nuts 17 on the respective threaded rod 13 thus the desired Hal tekraft can be generated for the core 2.
  • the threaded rods 13 are also used for clamping the housing cover plates 9, which are also clamped together via the threaded rods 13 and the clamping nuts 17.
  • the strained housing cover plates 9 also provide the necessary Wick tion pressure for stably holding the windings in a defined position to the respective core leg 3, 4 ready.
  • the Wick lungs are therefore either directly or via Wicklungskompo components, such as winding rings or the like, supported on the respec conditions housing cover plate 9.
  • FIG. 2 shows a dome 11 mounted on a press plate 12 in a partially sectioned side view.
  • the dome 11 is designed as a hollow cylinder, wherein at its closed end, a conductor bushing 10 can be seen.
  • the conductor bushing 10 has an insertion section 14 with a réelleboh tion 15, which projects into the dome 11.
  • the attachment portion is recognizable, which is formed as a flange 16, wherein the flange 16 via clamping nuts 17 and figuratively not shown sealing means is mounted in a fluid-tight manner on the pressure plate 12.
  • the dome 11 with its interior is located exactly above a passage opening provided in the pressure plate 12. 19 arranged.
  • housing cover plate 9 can be seen, which leads to a housing interior 20 of the housing 7.
  • a hollow cylindrical inter mediate piece 21 extends, which has a stop shoulder 22 at both ends, with which the intermediate piece 21 rests against the housing plate 9 and the pressure plate 12.
  • sealing means in the form of a sealing ring 23 are arranged. In this way, a fluid-tight connection between the interior of the dome 11 and the housing interior 20 is provided via the intermediate piece 21.
  • the dome 11 spaced from the housing 7 and the housing 7 are formed as compact as possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

L'invention concerne un appareil électrique (1) destiné à être raccordé à une ligne à haute tension. L'appareil électrique (1) dispose d'un noyau (2) magnétisable isolé par air, d'un boîtier (7) qui est rempli d'un fluide isolant, et d'au moins un enroulement agencé dans le boîtier (7) et à proximité du noyau (2), le boîtier (7) étant relié à un dôme (11). Le dôme (11) est conçu pour loger une traversée de conducteur (10) qui peut être reliée électriquement à l'enroulement et présente un raccordement extérieur (24) pour le raccordement de la ligne haute tension. L'objet de l'invention est de pouvoir concevoir le boîtier de la façon la plus compacte possible. À cet effet, le dôme (11) est situé à une certaine distance du boîtier (7) et est relié à celui-ci au moyen d'une pièce intermédiaire (21).
PCT/EP2019/050023 2018-01-31 2019-01-02 Appareil électrique doté d'une pièce intermédiaire Ceased WO2019149460A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018201477.9 2018-01-31
DE102018201477.9A DE102018201477A1 (de) 2018-01-31 2018-01-31 Elektrisches Gerät mit Zwischenstück

Publications (1)

Publication Number Publication Date
WO2019149460A1 true WO2019149460A1 (fr) 2019-08-08

Family

ID=65023869

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/050023 Ceased WO2019149460A1 (fr) 2018-01-31 2019-01-02 Appareil électrique doté d'une pièce intermédiaire

Country Status (2)

Country Link
DE (1) DE102018201477A1 (fr)
WO (1) WO2019149460A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114141511A (zh) * 2021-11-30 2022-03-04 江苏科兴电器有限公司 一种气体绝缘三相4pt组合电压互感器

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB969480A (en) * 1960-05-11 1964-09-09 English Electric Co Ltd Improvements in or relating to circuit-breaker or transformer housings with bushings
US3235823A (en) * 1961-04-03 1966-02-15 Mc Graw Edison Co High voltage three phase transformer
DE1235419B (de) * 1965-10-08 1967-03-02 Licentia Gmbh Transformator-Durchfuehrung von Leistungstransformatoren fuer sehr hohe Betriebsspannungen von ueber 300 kV
JPH0935957A (ja) * 1995-07-19 1997-02-07 Hitachi Ltd 電気機器
US5952617A (en) * 1996-04-19 1999-09-14 Jersey Central Power & Light Company Power transformer and coupling means
WO2014086948A2 (fr) 2012-12-05 2014-06-12 Abb Technology Ag Ensemble de transformateur
EP3048623A1 (fr) * 2015-01-20 2016-07-27 Balikesir Elektromekanik Sanayi Tesisleri Anonim Sirketi Transformateur à hauteur, volume et poids réduits
US20170316862A1 (en) * 2016-04-29 2017-11-02 Siemens Aktiengesellschaft Transformer with insertable high voltage conductor
WO2017202558A1 (fr) * 2016-05-25 2017-11-30 Siemens Aktiengesellschaft Dispositif de liaison d'un conducteur haute tension à un bobinage d'un appareil électrique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB476408A (en) * 1936-03-14 1937-12-08 Siemens Ag Improvements in or relating to a lead-in for cables to transformers, condensers and the like
JPS5842607B2 (ja) * 1976-11-05 1983-09-21 株式会社東芝 絶縁媒体封入変圧器
CN201449877U (zh) * 2009-07-14 2010-05-05 中山市泰峰电气有限公司 气体绝缘式电压互感器
JP5925443B2 (ja) * 2011-08-02 2016-05-25 株式会社東芝 静止誘導電気機器およびその製造方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB969480A (en) * 1960-05-11 1964-09-09 English Electric Co Ltd Improvements in or relating to circuit-breaker or transformer housings with bushings
US3235823A (en) * 1961-04-03 1966-02-15 Mc Graw Edison Co High voltage three phase transformer
DE1235419B (de) * 1965-10-08 1967-03-02 Licentia Gmbh Transformator-Durchfuehrung von Leistungstransformatoren fuer sehr hohe Betriebsspannungen von ueber 300 kV
JPH0935957A (ja) * 1995-07-19 1997-02-07 Hitachi Ltd 電気機器
US5952617A (en) * 1996-04-19 1999-09-14 Jersey Central Power & Light Company Power transformer and coupling means
WO2014086948A2 (fr) 2012-12-05 2014-06-12 Abb Technology Ag Ensemble de transformateur
EP3048623A1 (fr) * 2015-01-20 2016-07-27 Balikesir Elektromekanik Sanayi Tesisleri Anonim Sirketi Transformateur à hauteur, volume et poids réduits
US20170316862A1 (en) * 2016-04-29 2017-11-02 Siemens Aktiengesellschaft Transformer with insertable high voltage conductor
WO2017202558A1 (fr) * 2016-05-25 2017-11-30 Siemens Aktiengesellschaft Dispositif de liaison d'un conducteur haute tension à un bobinage d'un appareil électrique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114141511A (zh) * 2021-11-30 2022-03-04 江苏科兴电器有限公司 一种气体绝缘三相4pt组合电压互感器

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