EP3721458A1 - Elektrisches gerät mit pressplatten zum verspannen eines magnetisierbaren kerns - Google Patents
Elektrisches gerät mit pressplatten zum verspannen eines magnetisierbaren kernsInfo
- Publication number
- EP3721458A1 EP3721458A1 EP19700555.6A EP19700555A EP3721458A1 EP 3721458 A1 EP3721458 A1 EP 3721458A1 EP 19700555 A EP19700555 A EP 19700555A EP 3721458 A1 EP3721458 A1 EP 3721458A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- core
- electrical device
- housing
- winding
- tension elements
- 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 claims abstract description 45
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 239000012811 non-conductive material Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000000463 material Substances 0.000 description 4
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 3
- 239000011151 fibre-reinforced plastic Substances 0.000 description 3
- 230000005291 magnetic effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil 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
- H01F27/02—Casings
-
- 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
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- 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
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
-
- 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
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
-
- 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
-
- 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 electrical device for connection to a high voltage line having a magnetizable core, at least one arranged in the vicinity of the core winding and filled with insulating fluid housing in which stares least one winding is arranged, wherein the core at least partially disposed outside of the housing is.
- a transformer which comprises an air-cooled iron core with core legs, each of which bridges through a fluid-tight housing.
- the two core legs are interconnected by an upper and lower yoke to form a closed magnetic circuit.
- the windings of the transformer are arranged in pairs in the two adjacent housings, which are filled with an insulating fluid.
- two clamping frames hen each consist of two opposite pressing carriers.
- the two Press extend laterally next to the upper or lower yoke, which is held by Querverspannen the Pressisme the clamping frame fixed to the core and at the same time the flat against each other lying on the electric sheets of the core braced each other.
- the so-mounted press frame is also the stabi le holder of the windings on the respective core leg acts be.
- EP 2 929 551 B1 likewise discloses a transformer with an air-cooled core and windings encased in the legs.
- the above-mentioned electrical device has the disadvantage that with the holder presented there no cores can be used, which consist of two halves.
- the object of the invention is therefore to provide an electrical device of the type mentioned, with which a stable support of a core consisting of two halves is made possible.
- the invention solves this problem in that the core is fully arranged constantly between two opposing Pressplat th, between which tension elements for Ver span the core extend.
- the core is arranged in total between two pressing plates lying opposite one another.
- the entire core extends with all its portions between the press plates.
- the pressing force which is introduced into the core via the press plates is aligned parallel to the longitudinal direction of the windings and the core sections which extend through the windings.
- the mutually strained core parts such as core halves, can either touch on their outer contours or, if necessary, be kept at a distance from each other, so that between them an air gap is limited.
- Press plates and tension elements can basically be made of any material.
- press plates and tension elements consist of an electrically non-conductive material, for example a fiber-reinforced plastic.
- Due to the holding concept according to the invention can be dispensed ver further to mounting components for mounting the electrical device. In this way is an effective one and a compact electrical device that is quick and easy to assemble.
- the core has core limbs, which are connected to one another via a lower and an upper yoke, wherein the upper yoke rests on the front side on an upper pressure plate and the lower yoke on the front side against a lower pressure plate.
- the core forms in this way a closed magnetic circuit, which has been found to be particularly useful.
- the core legs extend in a longitudinal direction which is aligned parallel to the pressing force.
- the e.g. performed as a cutting tape core which is usually fixed by means of bandages or Span conditions.
- the bandage is placed along the circumference around the cutting band core and mechanically fixed there.
- the electrical device is a transformer, in particular a transformer of a
- the electrical Ge device is designed as a throttle.
- the core has two core limbs arranged parallel to one another, wherein each core limb is enclosed by at least two windings arranged concentrically to one another.
- the electrical device is designed as a transformer.
- the core leg is used for in ductile coupling of the concentrically arranged winding.
- the windings are preferably angeord net in a respec gene core leg enclosing fluid-tight housing, which is filled with a fluid, such as an ester or egg nem mineral oil.
- the insulating fluid provides on the one hand the necessary electrical insulation but also ei ne cooling for the windings.
- the housing is preferably made of an electrically non lei border insulating material, such as a fiber-reinforced plastic or the like.
- each winding is arranged in a housing is.
- At least one winding is arranged between two housing cover plates of the housing, wherein the housing cover plates are clamped together with the aid of the elements.
- the tension elements not only serve to tighten the core. Rather, the tension elements also allow a secure holding tion of each winding in a defined position to the core.
- the tension elements are mechanically connected to the housing cover plates, between which the said winding is arranged.
- at least two concentrically arranged windings are located on each end face on a housing cover plate.
- the housing cover plates are, like the pressing plates, opposite each other, so that they can be braced against each other on the train ele- ments. In this Wei se necessary for holding the winding on the core winding pressure is introduced into the windings.
- the traction elements threaded rods, Sei le, solid rods, tubes or rope braids.
- threaded rods are preferably used, to which
- Clamping nuts can be screwed on.
- the threaded rods extend through openings in sections of the press plates or housing cover plates, so that by tightening the screws, the necessary clamping or holding forces can be generated.
- the train elements are taken gefer from an electrically non-conductive material.
- any fiber-reinforced plastics come into consideration, which have the necessary mechanical strength.
- the pressing plate consists of one piece.
- press plate consists of several parts.
- housing cover plates the same applies to the housing cover plates.
- the core has two core halves which abut each other or bound by means of spacers an air gap.
- the core is a winding tape core.
- FIG. 2 shows a detailed view of the mechanical framework of the electrical device according to FIG. 1.
- FIG. 1 shows an embodiment of the electrical device 1 according to the invention in a side view.
- the designed as Trans transformer 1 electrical device has a core 2 with two core legs 3 and 4, each extending through one of two housings.
- the housings are shown in FIG. 1 without side walls in order to release the view of the outer windings 5 and 6 arranged in the housing.
- the core legs 3 and 4 are connected by an upper 7 and lower yoke 8 with each other, so that a closed Mag net Vietnamese is created.
- the core 2 consists of a magne tisierbaren material, so for example, a ferromagnetic's material, and is performed as a so-called cut tape core, which has a plurality of winding or electrical strips that abut each other.
- the electrical tapes are, for example, grain-oriented electrical tapes or electric sheets. By contrast, they are made of an amorphous material.
- each housing without side wall shown, which surrounds the core legs 3 and 4 in full the externally recognizable high-voltage winding 5 relationship 6 and each one figuratively not shown lower voltage winding concentric with each other.
- the concentric windings are inductively coupled together by the core legs 3 and 4.
- the housing is filled with an insulating fluid, which is used for electrical insulation of the high-voltage winding 5 and the low-voltage winding but also for their cooling.
- the high-voltage winding 5 is connected in series with the high-voltage winding 6. The same applies to the lower voltage windings arranged within the high-voltage windings 5, 6.
- the housing is next to the figuratively not shown side wall, the is cylindrical and runs around the windings around ver, from two end-side housing cover plates 9 and 10, the fluid-tight verbun with the side wall, not shown are the.
- the core 2 is completely between a first press plate
- the tension members are in the embodiment shown as example in a longitudinal direction extending threaded rods 13 executed, which are provided with an external thread.
- On the threaded rods 13 aufschraubbare clamping nuts 14 can now be screwed as far as the respective threaded rod 13, to the between the press plates 11 and
- the threaded rods 13 extend through through holes which are provided in the housing cover plate 9 and the housing sedeckelplatte 10.
- the windings are either directly or via a winding ring 15 or other component to the housing cover plates 9 and 10, so that by the Verspan nen the housing cover plates 9 and 10 of the necessary Wick ment pressure is introduced into the windings to these stable in the desired position on the respective core legs 3, 4 to hold.
- the press plates 11, 12, the Genzousede ckelplatten 9 and 10 and the tension members 13 thus a holding frame is provided.
- the holding frame allows a simple, inexpensive installation of the electrical device 1 according to the invention.
- cores 2 which are made of two halves be.
- the two halves of the core 2 can abut each other, so that a closed magnetic circuit is formed. Notwithstanding this, non-magnetizable spacer are provided between the core halves, which define an air gap between the halves.
- Figure 2 shows a detailed view of the upper first Pressplat te 11. It can be seen that this is a total of six Ge threaded rods 13 is connected to the lower pressure plate.
- the upper press plate 11 has a recess 16 which is designed complementary to the shape of the outer contour of the upper yoke 7 in this area. The recess or indentation 16 simplifies assembly and increases the mechanical strength of the transformer 1.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018201488.4A DE102018201488A1 (de) | 2018-01-31 | 2018-01-31 | Elektrisches Gerät mit Pressplatten zum Verspannen eines magnetisierbaren Kerns |
PCT/EP2019/050144 WO2019149469A1 (de) | 2018-01-31 | 2019-01-04 | Elektrisches gerät mit pressplatten zum verspannen eines magnetisierbaren kerns |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3721458A1 true EP3721458A1 (de) | 2020-10-14 |
EP3721458B1 EP3721458B1 (de) | 2022-03-09 |
Family
ID=65023877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19700555.6A Active EP3721458B1 (de) | 2018-01-31 | 2019-01-04 | Elektrisches gerät mit pressplatten zum verspannen eines magnetisierbaren kerns |
Country Status (9)
Country | Link |
---|---|
US (1) | US11721471B2 (de) |
EP (1) | EP3721458B1 (de) |
CN (1) | CN111670481B (de) |
CA (1) | CA3089164C (de) |
DE (1) | DE102018201488A1 (de) |
DK (1) | DK3721458T3 (de) |
PL (1) | PL3721458T3 (de) |
RU (1) | RU2741441C1 (de) |
WO (1) | WO2019149469A1 (de) |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT275669B (de) * | 1965-12-23 | 1969-11-10 | Elin Union Ag | Elektrisches Steuergerät mit einem Gerüst und Haltevorrichtung für einen oder mehrere mechanisch nachgiebige magnetische Ringbandkerne |
DE1563243B2 (de) * | 1966-08-25 | 1972-05-18 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Selbsttaetig nachstellende pressanordnung fuer wicklungen von transformatoren und drosselspulen |
DE2423416A1 (de) * | 1974-05-14 | 1975-11-27 | Siemens Ag | Schnittbandkern mit spannvorrichtung |
DE3413359A1 (de) * | 1984-04-09 | 1985-10-17 | Transformatoren Union Ag, 7000 Stuttgart | Drossel mit wicklungen um eisenkernschenkel aus eisenkernscheiben |
JPH0670922B2 (ja) | 1988-08-25 | 1994-09-07 | 日立金属株式会社 | 高電圧パルス発生装置用磁性部品 |
JPH04162605A (ja) * | 1990-10-26 | 1992-06-08 | Toshiba Corp | 分解輸送変圧器とその輸送、組立方法 |
WO2000002211A1 (de) * | 1998-07-02 | 2000-01-13 | Siemens Aktiengesellschaft | Induktives bauteil mit einem kern |
JP4240344B2 (ja) * | 1998-12-29 | 2009-03-18 | Necトーキン株式会社 | チョークコイル |
US6494617B1 (en) * | 1999-04-30 | 2002-12-17 | General Electric Company | Status detection apparatus and method for fluid-filled electrical equipment |
JP4038957B2 (ja) * | 2000-04-11 | 2008-01-30 | 松下電器産業株式会社 | 変圧器 |
AT414075B (de) | 2002-02-12 | 2006-08-15 | Siemens Ag Oesterreich | Spulenkörper und spule für leiterplattenmontage |
FI120067B (fi) | 2006-10-31 | 2009-06-15 | Jarkko Salomaeki | Menetelmä induktiivisen komponentin valmistamiseksi ja induktiivinen komponentti |
DE102007033892A1 (de) | 2007-07-20 | 2009-01-22 | Dürr Systems GmbH | Verfahren zur Prozessdiagnose und Rotationszerstäuberanordnung |
JP5208481B2 (ja) * | 2007-11-02 | 2013-06-12 | 公益財団法人鉄道総合技術研究所 | 極低温容器の支持装置 |
US8721149B2 (en) * | 2008-01-30 | 2014-05-13 | Qualcomm Mems Technologies, Inc. | Illumination device having a tapered light guide |
WO2010102669A1 (en) * | 2009-03-12 | 2010-09-16 | Abb Technology Ag | An electric transformer with improved cooling system |
ES2665930T3 (es) | 2010-09-02 | 2018-04-30 | Abb Schweiz Ag | Núcleo del transformador bobinado con estructura de soporte |
JP2013117473A (ja) * | 2011-12-05 | 2013-06-13 | Tamagawa Seiki Co Ltd | 回転角信号断線検出方法及び装置 |
DE102012111069A1 (de) | 2012-11-16 | 2014-05-22 | Phoenix Contact Gmbh & Co. Kg | Planarübertrager |
WO2014086948A2 (en) * | 2012-12-05 | 2014-06-12 | Abb Technology Ag | Transformer assembly |
US9198500B2 (en) | 2012-12-21 | 2015-12-01 | Murray W. Davis | Portable self powered line mountable electric power line and environment parameter monitoring transmitting and receiving system |
EP2832959A1 (de) | 2013-08-01 | 2015-02-04 | Siemens Aktiengesellschaft | Gehäuse, insbesondere Außengehäuse für eine Niederdruckdampfturbine |
EP2887480A1 (de) | 2013-12-17 | 2015-06-24 | Siemens Aktiengesellschaft | Steckerteil einer Verbindungseinheit |
EP3192087B1 (de) | 2014-09-12 | 2020-04-29 | ABB Power Grids Switzerland AG | Traktionstransformator |
CN204991387U (zh) | 2015-08-06 | 2016-01-20 | 天津通安变压器有限公司 | 变压器铁芯夹紧装置 |
CN105225794B (zh) | 2015-08-28 | 2018-05-22 | 国家电网公司 | 一种具有通风冷却结构的三相五柱高频变压器 |
CN206040385U (zh) * | 2016-10-11 | 2017-03-22 | 卧龙电气集团股份有限公司 | 一种机车牵引变压器的卷铁芯结构 |
-
2018
- 2018-01-31 DE DE102018201488.4A patent/DE102018201488A1/de not_active Ceased
-
2019
- 2019-01-04 US US16/966,551 patent/US11721471B2/en active Active
- 2019-01-04 EP EP19700555.6A patent/EP3721458B1/de active Active
- 2019-01-04 PL PL19700555.6T patent/PL3721458T3/pl unknown
- 2019-01-04 RU RU2020125104A patent/RU2741441C1/ru active
- 2019-01-04 CA CA3089164A patent/CA3089164C/en active Active
- 2019-01-04 CN CN201980011040.7A patent/CN111670481B/zh active Active
- 2019-01-04 WO PCT/EP2019/050144 patent/WO2019149469A1/de unknown
- 2019-01-04 DK DK19700555.6T patent/DK3721458T3/da active
Also Published As
Publication number | Publication date |
---|---|
CA3089164C (en) | 2024-01-02 |
WO2019149469A1 (de) | 2019-08-08 |
CN111670481A (zh) | 2020-09-15 |
EP3721458B1 (de) | 2022-03-09 |
CA3089164A1 (en) | 2019-08-08 |
DE102018201488A1 (de) | 2019-08-01 |
DK3721458T3 (da) | 2022-05-23 |
PL3721458T3 (pl) | 2022-07-25 |
RU2741441C1 (ru) | 2021-01-26 |
US20210050139A1 (en) | 2021-02-18 |
CN111670481B (zh) | 2023-08-04 |
US11721471B2 (en) | 2023-08-08 |
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