EP3685412A1 - Transformateur destiné à être fixé à un mât d'un réseau de distribution d'énergie - Google Patents

Transformateur destiné à être fixé à un mât d'un réseau de distribution d'énergie

Info

Publication number
EP3685412A1
EP3685412A1 EP18800501.1A EP18800501A EP3685412A1 EP 3685412 A1 EP3685412 A1 EP 3685412A1 EP 18800501 A EP18800501 A EP 18800501A EP 3685412 A1 EP3685412 A1 EP 3685412A1
Authority
EP
European Patent Office
Prior art keywords
transformer
core
winding
mast
core unit
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.)
Withdrawn
Application number
EP18800501.1A
Other languages
German (de)
English (en)
Inventor
Andre Luiz MORENO
Martin Alsina Navarro
Richard Sille
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 AG
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 filed Critical Siemens AG
Publication of EP3685412A1 publication Critical patent/EP3685412A1/fr
Withdrawn legal-status Critical Current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
    • H01F27/06—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
    • H01F27/08—Cooling; Ventilating
    • 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
    • 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
    • H01F27/327—Encapsulating or impregnating
    • 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
    • H01F27/022—Encapsulation
    • 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
    • H01F27/23—Corrosion protection

Definitions

  • the invention relates to a transformer for mounting on egg nem mast of an energy distribution network.
  • Such a transformer is for example from the
  • the transformer disclosed there is provided for mounting on a mast of an air-insulated power distribution network and can therefore also be referred to as a mast transformer.
  • the mast transformer disclosed therein has a high-voltage winding and lower voltage windings, which are arranged in an electrically insulating resin block as an insulator.
  • a passage is formed, which has at its end facing away from the resin block an outdoor connection, which serves for connection to an air-insulated phase conductor of the power distribution network.
  • the low and high voltage windings are inductively coupled together by an outside of the resin block arranged iron core, so that the desired voltage conversion is possible.
  • a grounded shield in the form of a metallic cage is provided, which closes the high-voltage winding completely.
  • the pre-known mast transformer has the disadvantage that the resin block and the core do not form a stable and secure unit.
  • the object of the invention is therefore to provide a transformer of the type mentioned, whose core is protected from environmental influences and corrosion, while simultane- ously a stable support of core and resin block is created.
  • the invention solves this problem by a transformer with a winding block, which has a solid insulating body in which at least one high-voltage winding and we least one undervoltage winding are arranged, wherein the winding block defines a fully closed central holding opening, a core unit, the at least ei NEN magnetizable Core and over which each upper voltage winding is inductively coupled to each undervoltage winding, wherein the core unit with at least egg nem core leg extends through the holding opening and the winding block with a ring portion outside annularly closes and with holding means for securing the Kranzab section on the mast.
  • a winding block is provided with a solid Iso lier emotions in which the upper and lower voltage windings are arranged.
  • This winding block forms a holding opening.
  • the core unit is arranged outside of the insulating body and extends according to the invention by the said holding opening.
  • the arrangement of the core unit outside of the insulator is advantageous that during the operation of the transformer, the magnetic fields preferably duri fen within the core unit.
  • the core unit preferably consists of mutually anlie ing magnetizable electric sheets or bands, it comes in operation to eddy currents, which provide a warming tion of the core unit.
  • the associated geometri cal expansion of the core unit is dependent on the size of the magnetic field and the thermal expansion coefficient of the core material used. Since the core unit is arranged outside the Iso lier emotionss, cracks in the insulating body due to a different degree of thermal expansion of the core and insulator are avoided.
  • the holding means single Lich for attachment of the annular rim portion of Serve core unit.
  • the winding block of the extending through the holding opening core leg is tread conditions.
  • the holder of the invention is therefore simple and so with cost.
  • a fast mounting of the transformer has become possible on the mast, wherein the fastening means also provide a protection for the environmentally sensitive core unit.
  • the support opening projecting from the cut of the core unit is adapted with respect to its outer contour to the inner contour of the holding opening.
  • the outer diameter of said core unit section is slightly smaller than the inner diameter of the holding opening, so that a mechanically stable unit is provided.
  • the core unit has at least one core, which is configured for example as a so-called winding core.
  • each core has so-called core winding layers which are passed through the retaining aperture.
  • wound cores and materials are well known to those skilled in the art, so that at this point on further Ausure ments can be dispensed with.
  • the core unit may be constituted only by a core having a central core leg extending through the holding opening and two return legs forming the rim section together with the yoke. Deviating from several cores are provided, each of which form a ge closed iron or magnetic circuit.
  • the core unit is impregnated with a curable polymer.
  • the core is exposed to environmental influences and consists before given of a ferromagnetic material, in particular an electric sheet or electrical steel, which is designed for example as a grain-oriented electrical steel.
  • the total thickness of the material wound into a loop of the core is between 0.1 mm and 0.5 mm.
  • the soft magnetic materials must be protected from corrosion because the core unit does not lose its magnetic induction effect.
  • a polymer is provided, which is supplied in the liquid state of the core unit.
  • the core unit is saturated by the liquid.
  • the polymer is cured under heat, for example in the oven and preferably in a vacuum oven. In this case, the vacuum draws the still liquid polymer into all spaces otherwise exposed to the environmental influences, so that effective protection for the core unit is provided after complete polymerization of the polymer.
  • the polymer is, for example, a commercially available resin or other polymer used in the field of transformer construction.
  • the polymer may have conventional additives.
  • the holding means have a support frame, which is designed so that it completely surrounds the outer rim portion of the transformer.
  • the support frame provides safe protection against moisture and harmful environmental influences, so that the effect of possibly existing impregnation is reinforced by the support frame.
  • the support frame can be configured as desired, as long as it provides for a complete encapsulation of the Kranzab section.
  • the support frame has a cross-sectionally C-shaped GE closed circumferential side wall which fully surrounds the rim portion.
  • the wreath section runs around the outside Winding block around annular or in other words annular, so that it can be arranged within the C-shaped Tragrah mens.
  • the support frame is adapted to the rim portion with respect to its dimensioning tion, so that a complete gripping the rim portion is possible.
  • a Dämmmate is arranged rial between the support frame and the rim portion.
  • the insulating material ensures, for example, a noise suppression and additional protection of the rim section.
  • Appropriate insulation is example, a suitable glass fiber fabric, in addition to the protection and noise suppression effect even a sufficient cooling of the warmed during operation ring section he allows.
  • the core unit comprises two cores, which each extend with a core leg through the holding opening and each enclose a leg of the winding body in full circumference.
  • the cores are advantageously wound from an electrical steel, which has already been described above be.
  • At least one intermediate layer is arranged between the voltage extending through the Garöff core leg of the cores, limits the cooling channels. In this way ge ensures adequate cooling of the cores, since the cores heat during operation and the resulting heat must be dissipated.
  • intermediate layers are arranged between the winding block and the core unit, the zen zen cooling channels.
  • inter mediate layers are also arranged between the fixed holding block and the core unit.
  • Suitable intermediate layers are, on the one hand, flexible materials which form recesses through which the cooling channels are formed.
  • the holding means have a mounting rail which can be mounted on the mast and which can be detachably connected to the supporting frame via a form-locking connection.
  • a positive connection is for example a one-time hook connection, which conveniently has a retaining plate into which a hook formed on the support frame can be inserted.
  • the hook can also be formed on the fastening supply rail, wherein the hook has an upwardly extending free end over which a retaining bracket of the support frame can be slipped.
  • a floor structure for holding the winding block, which is fastened to the supporting frame.
  • the floor structure is beispielswei se realized in the form of two brackets, which are each mounted on one side of the support frame and limit a basket-like inner contour which is complementary in shape to the outer contour of the winding block.
  • the headband are designed so that the winding block can be turned off on this.
  • the floor structure can also be configured in any other way and also with additional insulation material.
  • the support frame and / or the floor structure is / are equipped with a grounding nut.
  • the grounding nut allows a simple manner arranged in the holding block shield the Oberspan voltage winding to ground.
  • the transformer according to the invention a so-called
  • the retaining nut is used to connect the voltage arrester.
  • FIG. 1 shows a first embodiment of the inventive transformer in a schematic side view
  • Figure 2 shows the transformer of Figure 1 in a mounted on a mast position
  • FIG. 3 shows another embodiment of the invention
  • FIG. 1 shows an embodiment of the transformer 20 according to the invention in a sectional schematic Be tenansicht.
  • the transformer 20 has a Wick lungsêtenia 1, the one or two solid and dry Iso lier emotions of casting resin and two low-voltage windings and a high-voltage winding comprises.
  • the said Wicklun conditions are figuratively not shown.
  • the upper voltage winding between the lower voltage windings is net angeord.
  • the high-voltage winding is surrounded by a Abschir determination, which is figuratively also not shown.
  • a bushing 3 is formed, which extends from the winding body 1 to a free end, on which an open air connection 30 is formed.
  • Another appropriately trained implementation is in the direction exactly behind the implementation of 3 and is therefore not visible in Figure 1.
  • the insulating ribs of the implementation 3 are indicated schematically.
  • Through the implementation 3 extends a figured not dargestell ter inner conductor which connects the outdoor terminal 30 with the high-voltage winding of the winding body 1.
  • Unte Ren winding body portion 23 are low-voltage terminal terminals 4 are formed, which are each connected to the two Un terwoodswickl12.
  • the winding body 1 forms two winding body legs 21 and 22, which are interconnected by a lower 23 and an upper 24 winding body portion.
  • the winding body limbs 21, 22 as well as the upper and lower winding body sections 23, 24 define a holding opening 25, which is penetrated by a core unit 26.
  • the Kernein unit 26 has a first core 2.1 and a two-th core 2.2, each enclosing a winding body legs 21 and 22 in full.
  • Each core 2.1, 2.2 is a so-called wound core, in which the core consists of a plurality of winding or electrical strips that abut one another.
  • the electrical tapes or electrical sheets are grain-oriented electrical sheets or consist of an amorphous material.
  • wound cores of this type are known to the person skilled in the art, so that it is not necessary to discuss them in more detail here.
  • the two cores 2.1 and 2.2 each have a leg with which the respective core 2.1 or 2.2 extends through the holding opening 25. Outside the holding opening 25, the core unit 26 extends in a ring shape with a ring portion 27 around the winding body 1 around.
  • the cores were 2.1, 2.2 and that both the rim portion 27 and the teö réelle through the Hal 25 extending therethrough leg with a poly mer, here resin, impregnated.
  • the resin was placed in the liquid to stand in a vacuum oven on the core, so that due to the vacuum, the liquid resin penetrates into all interstices of the respective core 2.1, 2.2. Subsequently, the resin cures due to the heat of the furnace, so that the electric tapes or electrical sheets of the cores 2.1 and 2.2 are impregnated with resin in the. In this way, effective corrosion protection is provided.
  • a support frame 5 which has C-shaped side walls, the rim portion 27th completely enclose the core unit 26. In other words, the rim portion 27 is completely disposed within the support frame 5.
  • a corrosion protection and a Dämmmate is inserted, which serves for a necessary corrosion protection, on the other hand, a damping of the noise occurring during operation of the transformer.
  • corrosion protection and insulation material 6 for example, a suitable fiberglass material into consideration.
  • grounding nut 10 On the support frame 5, a grounding nut 10 can be seen, which is screwed onto a frame provided with an external thread pin of the support 5, wherein said pin is connected to the shield already described above.
  • the grounding nut 10 allows easy grounding of the shield from, but also the connection of the transformer with a surge arrester, which provides the desired protection of the transformer sector against surges.
  • FIG. 2 shows the attachment of the transformer 20 in accordance with Fi gur 1 to a mast 8.
  • the transformer 20 Hal means on which comprise a mounting rail 7.1, the two fastened via two hook-shaped mast holders 8.1 on the mast 8 are taken.
  • the mounting rail 7.1 forms a respective counterpart 7.3 to the hook-shaped mast holders 8.1, so that the mounting rail 7.1 can be quickly and easily hooked into the mast holder 8.1.
  • the fastening rail 7.1 is firmly connected to the support frame 5.
  • the mounting rail 7.1, the counterpart 7.3 and the support frame 5 include the holding means a bottom structure 7.2, which is connected in the ge Service in Figure 2 ge Service th embodiment with the support frame 5 and supports the winding body 1 from below, so that ge provides additional stabilization of the transformer 1 ge.
  • retaining rail 7.1 and bottom structure 7.2 are designed as separate and releasably interconnected components.
  • the winding body 1 is first produced together with the bushing 3. Subsequently, the cores 2.1 and 2.2 are mounted around the winding body legs 21 and 22, wherein the intermediate layers 9.1 and 9.2 who inserted the. Then it comes to the mounting of the support frame 5 together with the corrosion protection and the insulation material 6. Then, the mounting of the mounting rail 7.1 and the Bo den Siemens 7.2. Finally, the suspension takes place in the be already fixed to the mast 8 mounted mast holder 8.1. In order to simplify assembly, for example with the aid of lifting vehicles such as cranes or the like, suspension openings 11 are provided in the holding means M.
  • FIG 3 shows a further embodiment of the inventions to the invention transformer 20.
  • the mast retaining 8.1 shown there is equipped with an upper and a lower mast holder 8.1, each mast holder 8.1 only forms a hook, in each of which a counterpart 7.3 hooked who can.
  • the counterparts 7.3 are again arranged on the fastening transmission rail 7.3, which is connected at its side remote from the counterpart 7.3 side fixed to a part of the support frame 5.
  • the mounting rail 7.1 is formed in contrast to the embodiment shown in Figure 2 L-shaped and has a vertical, extending parallel to the mast section and a horizonta len portion with which the mounting rail 7.1 engages the Wick training body 1.
  • the Befest onlysschien 7.1 on its side remote from the mast 8 side also connected to a part of the support frame 5, so that a stable unit between the winding body 1, core unit 26 and holding means 5, 7.1 and 7.3 is provided.
  • the two said parts of the support frame 5 are bolted together.
  • the remote from the mast 8 part of the support frame 5 is C-shaped in a plan view of the transformer 20 and screwed at the ends of its free legs with the elongated extending in one direction to the part of the support frame 5.
  • Attached to the support frame 5 eyelets 7.4 simplify the installation of the transformer 20 by means of a lifting crane on the mast

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Insulating Of Coils (AREA)

Abstract

L'invention vise à réaliser un transformateur (20) destiné à être fixé à un mât d'un réseau de distribution d'énergie isolé par air, dont le noyau est protégé contre la corrosion et les influences environnementales en fournissant simultanément un maintien stable. Selon l'invention, le transformateur (20) possède un bloc d'enroulement (1) comprenant un corps isolant fixe dans lequel sont disposés au moins un enroulement de tension primaire et au moins un enroulement de tension secondaire. Le bloc d'enroulement (1) délimite une ouverture de maintien (25) centrale entièrement fermée sur le pourtour. Une unité de noyau (26) est en outre présente, laquelle possède au moins un noyau magnétisable (2.1, 2.2) et par le biais de laquelle chaque enroulement de tension primaire est couplé par induction à chaque enroulement de tension secondaire. L'unité de noyau (26) s'étend avec au moins une branche de noyau à travers l'ouverture de maintien (25) et entoure le bloc d'enroulement (1) à l'extérieur en forme d'anneau par une portion en couronne (27). Des moyens de maintien (7.1, 7.3, 5, 8.1) sont présents pour la fixation de la portion en couronne au mât (8).
EP18800501.1A 2017-11-21 2018-10-24 Transformateur destiné à être fixé à un mât d'un réseau de distribution d'énergie Withdrawn EP3685412A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017220782.5A DE102017220782A1 (de) 2017-11-21 2017-11-21 Transformator zur Befestigung an einem Mast eines Energieverteilungsnetzes
PCT/EP2018/079121 WO2019101458A1 (fr) 2017-11-21 2018-10-24 Transformateur destiné à être fixé à un mât d'un réseau de distribution d'énergie

Publications (1)

Publication Number Publication Date
EP3685412A1 true EP3685412A1 (fr) 2020-07-29

Family

ID=64270808

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18800501.1A Withdrawn EP3685412A1 (fr) 2017-11-21 2018-10-24 Transformateur destiné à être fixé à un mât d'un réseau de distribution d'énergie

Country Status (8)

Country Link
US (1) US11587714B2 (fr)
EP (1) EP3685412A1 (fr)
CN (1) CN111357064B (fr)
BR (1) BR112020008549B1 (fr)
CA (1) CA3082292C (fr)
DE (1) DE102017220782A1 (fr)
MX (1) MX2020004193A (fr)
WO (1) WO2019101458A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110400674B (zh) * 2019-07-28 2020-11-17 安徽祥能电力科技有限公司 一种固定强稳定连接机构的高架设户外变压器
CN110783063B (zh) * 2019-10-30 2021-06-04 许继集团有限公司 变压器安装结构及柱上变压器安装支架

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2975385A (en) 1959-10-15 1961-03-14 Porter Co Inc H K Non-liquid transformer
US3213397A (en) 1961-04-28 1965-10-19 Gen Electric Electrical winding spool for electrical apparatus
US3263196A (en) 1963-07-16 1966-07-26 Mc Graw Edison Co Encapsulated electrical coil having means to aid impregnation
US3371299A (en) * 1966-02-10 1968-02-27 Westinghouse Electric Corp Transformer apparatus cooling system
SE325330B (fr) 1967-04-11 1970-06-29 Dow Corning
US5275368A (en) 1992-04-24 1994-01-04 Continental Electric Company Automatic locking transformer bracket
US6411188B1 (en) * 1998-03-27 2002-06-25 Honeywell International Inc. Amorphous metal transformer having a generally rectangular coil
BR9902887C1 (pt) 1999-07-22 2001-03-20 Siemens Ltda Trasformador de distribuição
US6914195B2 (en) * 2003-04-30 2005-07-05 Va Tech Transformateurs Ferranti-Packard (Quebec) Inc. Distribution transformer
CA2700669C (fr) 2007-09-28 2016-08-30 Siemens Aktiengesellschaft Corps d'enroulement electrique et transformateur a refroidissement force
WO2011126991A1 (fr) * 2010-04-07 2011-10-13 Abb Technology Ag Transformateur sec extérieur
CN202134359U (zh) 2011-06-17 2012-02-01 上海工业变压器有限公司 一种新型非晶合金配电变压器
CN102723182B (zh) * 2011-12-05 2016-01-20 山东电力集团公司青岛供电公司 10kV柱上变压器隔音装置
WO2014031959A2 (fr) 2012-08-24 2014-02-27 Abb Technology Ag Transformateur de distribution
DE202013004440U1 (de) * 2013-05-14 2014-05-16 Thales Deutschland Gmbh Schutzgehäuse zur Aufnahme mindestens einer gekapselten Baugruppe und Baugruppe hierfür
CN104269246B (zh) * 2014-10-29 2016-08-24 国网浙江慈溪市供电公司 变压器装置
EP3089179B1 (fr) * 2015-04-29 2020-10-21 General Electric Technology GmbH Boîtier d'équipement électrique comprenant une paroi double usage pour la réduction de bruit
CN105261468A (zh) 2015-11-05 2016-01-20 成都市亚丰电子技术有限责任公司 平板高压变压器及其制作方法
CN107316735A (zh) * 2016-06-29 2017-11-03 施三武 一种电动汽车专用配电变压器
US11250990B2 (en) * 2017-01-25 2022-02-15 Delta Electronics (Shanghai) Co., Ltd High-voltage transformer and electronic power apparatus

Also Published As

Publication number Publication date
DE102017220782A1 (de) 2019-05-23
BR112020008549A2 (pt) 2020-10-06
CA3082292A1 (fr) 2019-05-31
BR112020008549A8 (pt) 2023-04-25
MX2020004193A (es) 2020-08-03
WO2019101458A1 (fr) 2019-05-31
CN111357064B (zh) 2023-12-01
BR112020008549B1 (pt) 2024-03-12
CA3082292C (fr) 2023-10-10
CN111357064A (zh) 2020-06-30
US11587714B2 (en) 2023-02-21
US20200357559A1 (en) 2020-11-12

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