EP3577665B1 - Partie active pour un appareil électrique à haute tension - Google Patents

Partie active pour un appareil électrique à haute tension Download PDF

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Publication number
EP3577665B1
EP3577665B1 EP18711041.6A EP18711041A EP3577665B1 EP 3577665 B1 EP3577665 B1 EP 3577665B1 EP 18711041 A EP18711041 A EP 18711041A EP 3577665 B1 EP3577665 B1 EP 3577665B1
Authority
EP
European Patent Office
Prior art keywords
core
active part
winding
distribution
cable
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
EP18711041.6A
Other languages
German (de)
English (en)
Other versions
EP3577665A1 (fr
Inventor
Markus Baumann
Klaus Delatron
Julian Kraus
Manfred Montag
Erwin Sauer
Christer Vogt
David Weber
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 EP3577665A1 publication Critical patent/EP3577665A1/fr
Application granted granted Critical
Publication of EP3577665B1 publication Critical patent/EP3577665B1/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
    • 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
    • H01F27/24—Magnetic cores
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
    • 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
    • H01F27/321—Insulating of coils, windings, or parts thereof using a fluid for insulating purposes only

Definitions

  • the invention relates to an active part for an electrical high-voltage device with a magnetizable core, at least one winding held on the core for generating a magnetic flux in the core and connecting lines which are each connected at their winding end to a named winding and at their distribution end to a distribution device of the active part , wherein the core forms at least one beveled core corner and the distribution device is arranged in the area of the beveled core corner.
  • Such an active part is from the U.S. 2013/147594 A1 known.
  • a low voltage transformer that can be assembled in a modular fashion. Two half legs protrude from a flat section of a base part with beveled corners. The half legs of a correspondingly designed base part are placed on these half legs, so that core legs are formed in this way, which are formed in the assembled state of the transformer core legs that each extend through a winding.
  • connection lines are designed as cables and extend from the respective winding tap to a distribution device of the active part.
  • the connecting lines are laid inside a tank filled with an insulating fluid and run above the windings. All connection lines are for connection to the distribution system brought together above the core yoke and connected there to the distribution device.
  • EP 3 048 623 A1 discloses an active part for a traction transformer that includes a core with a core leg and windings that concentrically surround a core leg of the core.
  • a distributor device is also described, which is connected to one of the windings via a connecting line.
  • the previously known active part has the disadvantage that due to the arrangement of the connection lines above the windings, the tank for accommodating the active part must be designed to take up a lot of space. However, the space available for electrical devices is limited, particularly in rail operations.
  • the object of the invention is therefore to provide an active part of the type mentioned at the outset that is compact.
  • the distribution device is designed as a distribution strip that extends in a longitudinal direction, with the distribution strip forming a plurality of cable connections lying next to one another, which are each connected to a named connection line, and the cable connections being connected to their respective associated Connecting line facing away from each other are connected to a busbar of the active part, which is connected at its end remote from the distribution strip with a connector system of cable sockets of the active part.
  • the active part according to the invention has a core with beveled core corners.
  • the beveled corners of the core provide additional space for the distribution device.
  • the distribution device otherwise arranged above the windings be arranged in the area of the beveled core corner, so that the active part according to the invention is designed to be more compact and can therefore be arranged in a smaller tank.
  • the high-voltage device composed of the active part according to the invention and a tank arranged thereon is therefore also more compact and lighter than a high-voltage device according to the prior art.
  • a transformer or a choke can be used as an electrical high-voltage device.
  • the electrical high-voltage device is a railway transformer, the longitudinal direction of the windings of the railway transformer extending in a horizontal direction in the installed position.
  • the windings of the active part are in the tank.
  • Magnetizable materials are to be understood here as meaning ferromagnetic materials such as iron.
  • the distribution device is designed as a distribution strip that extends in a longitudinal direction, the distribution strip having a plurality of cable connections lying next to one another, which are each connected to the distribution end of a Z respective associated connecting line.
  • the length of the distribution strip is adapted to the installation space made available by the beveled corner, so that the distribution strip can be installed in the region of the beveled corner on the active part.
  • the distribution bar enables a clear connection of the active part.
  • the cable connections are electrically connected on their side facing away from the connecting line to a busbar, which is connected to a plug-in system of cable sockets on the active part at its end facing away from the distribution strip.
  • the cable sockets as a lead-through system, advantageously extend through the wall of a tank at ground potential, in which the active part is arranged. In this way, an external connection of the active part is made possible.
  • the core defines upper and lower yokes and at least one outer core leg extending between the upper and lower yokes, each outer core leg and, for example, the upper yoke together forming a chamfered core corner.
  • the outer core leg and each yoke form a corner that is rectangular in cross-sectional view.
  • this core corner is chamfered, with the chamfer creating, for example, two interior angles instead of a 90-degree interior angle between the outside of the yoke and the outer core limb in a cross-sectional view.
  • the upper yoke and a straight bevel form an internal angle of 135 degrees with respect to their common upper point of intersection in cross-sectional view, said bevel and the outer contour of the core leg also forming an angle of 135 degrees with respect to their point of intersection in cross-sectional view.
  • An additional installation space is provided above said bevel, which is used within the scope of the invention for the winding connection.
  • two outer core legs are provided.
  • two or four additional installation spaces are provided, so that the distribution device can be divided between the two or four additional installation spaces.
  • the distribution device consists of two parts, each of which is assigned to a winding arrangement.
  • the winding arrangement comprises, for example, two concentrically arranged windings through which one of the outer core limbs extends.
  • each outer core leg is surrounded concentrically by two windings.
  • a transformer is provided which does not have any dead-winding feedback legs having.
  • connection conductors are designed as insulated round conductors that have an inner current conductor that is surrounded by an outer cable insulation.
  • the cable insulation ensures increased dielectric strength of the connecting lines, so that they can be laid close to the turns of the respective winding.
  • cables can also be used as insulated round conductors.
  • connection conductors extend on an outside of the outer winding, which faces away from each adjacent winding. According to this advantageous further development, the connecting conductors no longer run above the windings, so that the need for an additional internal volume in the tank is avoided.
  • connection lines extend from a winding tap arranged on the outside of the winding along said outside of the winding, which is remote from any other winding.
  • a beveled core corner is formed on this outside together with the respective yoke, in the vicinity of which the distribution unit is at least partially arranged.
  • each outer winding of the winding arrangement has a side that faces the other parallel winding arrangement.
  • the winding arrangement also forms a side facing away from the other winding arrangement, which is referred to here as the outside of the winding or winding arrangement.
  • the connecting lines are routed along this outside directly to the distribution device, so that a complex and space-consuming collection of cables is avoided.
  • the windings are also tapped on the outside.
  • the core is composed of magnetizable metal sheets that lie flat against one another.
  • the sheets are preferably iron sheets that are insulated from one another, so that eddy current losses are reduced.
  • FIG. 1 shows an embodiment of an active part according to the prior art.
  • the active part 1 shown has a core 2, which has an upper yoke 3 and a lower yoke, not shown in the figures.
  • Two core legs 4 extend between the upper yoke 3 and the lower yoke.
  • Each core limb 4 consists of two windings arranged concentrically to one another surrounded, of which only the outer high-voltage windings 7 and 8 can be seen in the figure shown.
  • the low-voltage windings are each arranged inside the high-voltage windings 7 , 8 .
  • Connection lines 9 are provided for connecting the windings, each of which has a winding end 10 and a distributor end 11 .
  • Each connecting line 9 is connected to the winding end 10 with a tap of a winding, for example the high-voltage winding 7 .
  • each connection line 9 is connected to a distribution device 12, which consists of a large number of cable sockets 12 here.
  • a cable plug can be inserted into a cable socket 12 and the winding can thus be connected to an external component as desired.
  • the external component is, for example, a converter, a switch or the like.
  • FIG 2 shows an exemplary embodiment of the active part 1 according to the invention, which again comprises a core 2 .
  • the core 2 has two outer legs 4, each of which is surrounded by two windings arranged concentrically to one another. Of the windings, only the outer winding, the high-voltage winding 7, 8, can be seen.
  • the core 2 is again composed of metal sheets 13 made of a magnetizable material, here iron, lying flat against one another, the metal sheets 13 being clamped together by a lower and an upper press frame 5 (not shown in the figure).
  • the upper press frame 5 consists of two press parts 5 a and 5 b which are arranged on both sides of the upper yoke 3 and which are mechanically connected to one another via yoke bolts 14 .
  • the non-magnetic yoke bolts 14 extend through the upper yoke 3, with nuts 15 being provided on both end sides for generating the clamping force.
  • each outer leg 4 forms a beveled corner 16 with the upper yoke 3, which each provide additional installation space due to the lack of a "semi-corner".
  • the outer contour of the upper yoke 3 forms an inner angle of about 135 degrees with the outer contour of the bevel 17 .
  • FIG 3 shows the head area of the active part 1 according to FIG figure 2 in a top view.
  • the beveled core corners 16 can also be seen here. where is in figure 3 the outer contour of the core without beveled core corners 16 is illustrated with the aid of the dashed lines 18 .
  • the dashed line 18 therefore illustrates the installation space gained by beveling the corners, ie the missing half-corners.
  • a distribution unit designed as a distribution strip 19 is arranged in this area.
  • Each distribution strip 19 extends in a longitudinal direction, with each distribution strip 19 having cable connections 20 arranged next to one another.
  • the cable connections 20 are designed here as cable lugs, which are electrically connected to the distributor ends 11 of the connecting conductors 9, which are designed here as insulated round conductors.
  • the connecting conductors 9 again have a winding end (not shown in the figure) with which they are electrically connected to a tap of an associated winding.
  • the cable connections 20 are each connected to a busbar 21, which in turn is connected to a cable bushing 22 as a bushing system on its side facing away from the respective cable connection 20.
  • the cable sockets 22 are arranged in the tank wall and are accessible from the outside, so that the respective winding tap can be connected to an external component by inserting a cable plug into the cable socket 22 .

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

Claims (7)

  1. Partie (1) active d'un appareil électrique à haute tension comprenant
    - un noyau (2) magnétisable,
    - au moins un enroulement (7, 8) maintenu sur le noyau (2) pour la production d'un flux magnétique dans le noyau (2) et
    - des lignes (9) de connexion, qui sont connectées respectivement à leurs extrémités (10) d'enroulement à un dit enroulement (7, 8) et à leurs extrémités (11) de répartiteur à un dispositif (19) de répartition de la partie active,
    dans laquelle le noyau (2) constitue au moins un coin (16) de noyau biseauté et le dispositif (19) de répartition est disposé dans la partie du coin (16) de noyau biseauté,
    caractérisée en ce que
    le dispositif de répartition est constitué sous la forme d'une réglette (19) de distribution, qui s'étend dans une direction longitudinale, la réglette (19) de distribution constituant plusieurs connexions (20) par câbles côte à côte, qui sont reliées à respectivement une dite ligne (9) de connexion et dans lequel les connexions (20) par câble sont reliées, du côté loin de la ligne (9) de connexion respectivement associée à un rail (21) collecteur de la partie active, qui est relié à son extrémité, loin de la réglette de répartition, à un système (22) d'enfichage composé de douilles (22) pour câble de la partie (1) active.
  2. Partie (1) active suivant la revendication 1,
    caractérisée en ce que
    le noyau constitue une culasse (3) supérieure et inférieure ainsi qu'au moins une branche (4) extérieure de noyau, qui s'étend entre la culasse (3) supérieure et inférieure, dans laquelle chaque branche (4) extérieure du noyau et la culasse (3) supérieure forment ensemble un coin (16) de noyau biseauté.
  3. Partie (1) active suivant la revendication 2,
    caractérisée en ce que
    il est prévu deux branches (4) extérieures du noyau.
  4. Partie (1) active suivant la revendication 2 ou 3, caractérisée en ce que
    la branche (4) extérieure du noyau est entourée concentriquement de deux enroulements.
  5. Partie (1) active suivant l'une des revendications précédentes,
    caractérisée en ce que
    les conducteurs de connexion sont des conducteurs (9) circulaires isolés de section circulaire, qui ont un conducteur intérieur de courant, lequel est entouré d'une isolation extérieure de câble.
  6. Partie (1) active suivant l'une des revendications précédentes,
    caractérisée en ce que
    les lignes (9) de connexion s'étendent d'un côté extérieur d'un enroulement (7, 8) extérieur, qui est loin de chaque enroulement voisin.
  7. Partie (1) active suivant l'une des revendications précédentes,
    caractérisée en ce que le noyau (2) est composé de tôles (13) magnétisables s'appliquant les unes aux autres.
EP18711041.6A 2017-04-04 2018-03-05 Partie active pour un appareil électrique à haute tension Active EP3577665B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017205749.1A DE102017205749A1 (de) 2017-04-04 2017-04-04 Aktivteil für ein elektrisches Hochspannungsgerät
PCT/EP2018/055313 WO2018184777A1 (fr) 2017-04-04 2018-03-05 Composant actif pour appareil électrique haute tension

Publications (2)

Publication Number Publication Date
EP3577665A1 EP3577665A1 (fr) 2019-12-11
EP3577665B1 true EP3577665B1 (fr) 2022-06-15

Family

ID=61628316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18711041.6A Active EP3577665B1 (fr) 2017-04-04 2018-03-05 Partie active pour un appareil électrique à haute tension

Country Status (5)

Country Link
EP (1) EP3577665B1 (fr)
CN (1) CN110462763B (fr)
DE (1) DE102017205749A1 (fr)
PL (1) PL3577665T3 (fr)
WO (1) WO2018184777A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130147594A1 (en) * 2011-09-23 2013-06-13 Yujing Technology Co., Ltd Transformer Structure Having Double-axis Iron Core
US8558651B2 (en) * 2011-01-27 2013-10-15 Tamura Corporation Core fixing member and coil device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61174704A (ja) * 1985-01-30 1986-08-06 Toshiba Corp ３相ガス絶縁変圧器
US5461772A (en) * 1993-03-17 1995-10-31 Square D Company Method of manufacturing a strip wound coil to reinforce edge layer insulation
DE102010012517B4 (de) * 2010-03-24 2015-07-23 Johann Lasslop Gmbh Drossel
CN202230862U (zh) * 2011-08-23 2012-05-23 常熟开关制造有限公司(原常熟开关厂） 一种剩余电流互感器
DE202014000579U1 (de) * 2014-01-24 2014-02-20 Kendrion Kuhnke Automation Gmbh Elektromagnet und elektromagnetisches System
CN204010978U (zh) * 2014-08-29 2014-12-10 江苏南瑞帕威尔电气有限公司 单相轴向四分裂非晶合金干式隔离变压器
ES2806448T3 (es) * 2014-09-12 2021-02-17 Abb Power Grids Switzerland Ag Transformador de tracción
EP3048623B1 (fr) * 2015-01-20 2017-11-22 Balikesir Elektromekanik Sanayi Tesisleri Anonim Sirketi Transformateur à hauteur, volume et poids réduits

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8558651B2 (en) * 2011-01-27 2013-10-15 Tamura Corporation Core fixing member and coil device
US20130147594A1 (en) * 2011-09-23 2013-06-13 Yujing Technology Co., Ltd Transformer Structure Having Double-axis Iron Core

Also Published As

Publication number Publication date
DE102017205749A1 (de) 2018-10-04
EP3577665A1 (fr) 2019-12-11
PL3577665T3 (pl) 2022-09-19
CN110462763A (zh) 2019-11-15
CN110462763B (zh) 2022-06-24
WO2018184777A1 (fr) 2018-10-11

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