EP3685413A1 - Unité d'enroulement à prises formées au niveau du support - Google Patents

Unité d'enroulement à prises formées au niveau du support

Info

Publication number
EP3685413A1
EP3685413A1 EP18800503.7A EP18800503A EP3685413A1 EP 3685413 A1 EP3685413 A1 EP 3685413A1 EP 18800503 A EP18800503 A EP 18800503A EP 3685413 A1 EP3685413 A1 EP 3685413A1
Authority
EP
European Patent Office
Prior art keywords
winding
support
winding unit
supporter
insulating body
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
Application number
EP18800503.7A
Other languages
German (de)
English (en)
Other versions
EP3685413B1 (fr
Inventor
Richard Sille
Andre Luiz MORENO
Martin Alsina Navarro
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 EP3685413A1 publication Critical patent/EP3685413A1/fr
Application granted granted Critical
Publication of EP3685413B1 publication Critical patent/EP3685413B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/025—Constructional details of transformers or reactors with tapping on coil or windings
    • 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
    • H01F27/327—Encapsulating or impregnating

Definitions

  • the invention relates to a winding unit for connection to a high-voltage network with a embedded in a solid insulating winding, a first terminal, which is connected to a first coil end of the winding and arranged on egg nem first integrally formed on the insulator support, and a second terminal, with a second winding end of the winding is connected, wherein the winding part windings and taps, by means of which the number of series windings of the partial windings is adjustable and which are each connected via a lier emotions in the Iso extending discharge with an externally accessible to tapping terminal ,
  • the previously known winding unit 10 has a designed as a resin block 11 insulating body in which a high-voltage winding 12 is angeord net.
  • the high-voltage winding 12 consists of a ers th 13 and second part of the winding 14, the mutually facing th winding ends are connected to themselves through the resin block 11 concernedre ckende discharges 15 and 16 with tapping connection terminals 5 and 6, respectively, from the outside
  • An upper main connection terminal 19 can be seen at the free end of an integrally formed on the resin block 11 1 supporter.
  • a lower main connection terminal 20 is correspondingly at the free end of a also formed on the resin block 11 formed support 2.
  • two tap terminals must be connected to each other.
  • a connection of the tapping connection terminals 4 and 7 leads to a series circuit of an average number of turns, whereas a compound of the tapping connection terminals 3 and 8 leads to egg ner series connection of turns, the number of comparatively comparatively least.
  • the tapping connection terminals 3 and 8 are connected to one another via a connecting lug 21.
  • a connecting lug 21 about -5% of the nominal voltage can be tapped at the main terminals 19 and 20.
  • the voltage prevailing there would be about -2.5%, whereas a connection of the tapping connection terminals 4 and 6 would lead to a tapped voltage of about + 2.5%.
  • the previously known winding unit has the disadvantage that the centrally extending in the resin block outlets 15, 16 and 18 prevent it, that the high-voltage winding of egg nem shielding cage can be fully enclosed.
  • the shield cage would have to carry out the Ausleitun conditions 15, 16 and 18 have an opening, whereby the effect of the shield would be canceled.
  • the object of the invention is to provide a winding unit of the initially mentioned type, which makes it possible to encapsulate the upper tension in the resin block in full by a scarf mung cage.
  • the invention solves this problem in that the Anzap tion connection terminals are formed on the supporter.
  • the tapping connection terminals in the context of he inven tion no longer centrally on Isolierköper or with other Wor th winding block but together with one of the Hauptan circuit terminals formed on the supporter. Since the supporter is usually arranged on the front side of the insulator arranged in the high-voltage winding, the con nection lines of the taps from the front side of the winding can be performed. Connecting lines that extend in from a centrally arranged in the insulator body tap in the transverse direction of the insulating out, are avoided in this way.
  • the Wicklungsein unit equipped with a shield in the insulating who the who completes the winding completely and cage-like order.
  • the shield is advantageously arranged in un indirectly close to the winding.
  • the winding is advantageously a high-voltage winding, which is thus designed for higher voltages and lower currents.
  • each support is rotationally symmetrical and equipped with ribs, wherein each support extends in a longitudinal direction and the tapping connection terminals between two ribs over the circumference of the respective support are arranged evenly distributed.
  • ribs are provided on the supporter in order to magnify the path for leakage currents and to suppress them as completely as possible. Creep currents are undesirable because they can affect the dielectric strength of the insulator.
  • the first main connection terminal is formed at the free end of the supporter.
  • the first winding of the high-voltage winding connected via a extending through the entire length of the support through discharge with the main terminal.
  • the Anzapfungsan are terminals arranged offset to the insulator out and therefore have a distance from the first main terminal.
  • all tapping connection terminals are arranged at the same height and at least one rib from the first main terminal spaced. It is expedient that the number of turns between tween the first end-side turn of the winding and the taps is as small as possible. Otherwise, the potential difference between the first main terminal and the tap terminals on the supporter would be too large to be co-located with a supporter and spaced apart by a single rib.
  • the number of turns of the first part winding whose topmost end turn is connected to the Ers th main terminal and whose last Win tion is connected to a tapping terminal on the supporter between 1 and 20, whereas the number of turns of the second part winding, the first end winding is connected to a tapping terminal and whose last turn is connected to the second main terminal.
  • a second support which extends from the winding body to its free end, wherein the second main terminal is formed at the free end of the second support.
  • two main terminals are provided, which are each arranged at the free end of a supporter. Between the terminals, the number of turns between the first and second main terminals and thus the voltage can be adjusted by bridging the appropriately selected tapping terminals.
  • the second support also has ribs. Here, too, serve the ribs of the enlargement of the creepage path and thus the He increase the dielectric strength of the winding unit.
  • Supporter made of a hardened resin.
  • Suitable resin here is epoxy resin into consideration, wherein the resin suitable additions are added for curing.
  • Insulating body made of resin, however, are known to the person skilled in the art, so that at this point more detailed explanations can be dispensed with.
  • a flexible cap held on the support which serves to protect the tapping connection terminals.
  • the cap is made for example of a flexible elastomer and serves to keep out dirt, rainwater or the like. Due to the flexibility of the cap this can be slipped over the respective ribs of the support, if necessary, via the Anzap supply connection terminals.
  • FIGS. 1 and 2 a winding unit according to the
  • FIGS 3 and 4 a winding unit according to the prior invention in a front view or in a sectional side view
  • Figures 5 and 6 an embodiment of a
  • Figure 7 shows an embodiment of the inventions to the invention winding unit, which illustrate in a perspective view.
  • Figures 1 and 2 show a winding unit according to the prior art as already described in detail WUR de, so that a re-representation can be omitted.
  • FIG. 3 shows an embodiment of the winding unit 10 according to the invention in an end view.
  • FIG. 4 shows the winding unit of FIG. 3 in a sectioned side view.
  • the winding unit 10 has a fixed Wicklungskör, which is designed as a resin block 11.
  • a winding 12 is embedded.
  • the winding 12, which is designed here as a high-voltage winding 12 again comprises a first partial winding 13 and a second partial winding 14, which are galvanically separated from each other.
  • the uppermost Wick lungslage the first part of the winding 13 is connected via a drain 18 with the first main terminal 19 of a supporter 1.
  • the first main terminal 19 is disposed at the free end of the supporter 1, which is turned from the insulating body 11 from.
  • the last Windungslage the first part of the winding 13 is - as in the prior art according to Figures 1 and 2 - connected via a discharge line 15 with the tapping terminal 5, which, however, in contrast to the Darge presented in Figure 1 winding unit is formed on the support 1. Ent speaking applies to the tapping connection terminals 3 and 4, which are also connected to taps 17 of the first part of winding 13.
  • the first winding layer of the second sub-winding 14 is again connected via a lead-out 16 with the Anzap- Fung connection terminal 6 is connected, which is also arranged on the supporter 1.
  • the partial windings 13, 14 differ in terms of the number of turns. While in the Wick treatment unit 11 according to Figure 2, the first partial winding 13 and the second partial winding 14 dimensioned almost identically and have approximately the same number of turns, the first partial winding 13 is approximately smaller dimensioned in the Auspar shown in Figure 4 approximately embodiment of the invention. This has the advantage that the outlets 15, 16 and 18 need not unnecessarily long parallel to the winding 12 to the supporter 1 in the resin block 11 must be performed so that the winding unit 10 according to the invention easier and cost can be designed cheaper.
  • the supporter 1 is configured rotationally onssymmetrisch and ribs 22 forms to extend the creepage current path and thus increase theistsfes activity.
  • the tapping connection terminals 3, 4, 5, 6, 7 and 8 are all arranged in common between the first and the second rib 23 and 24 of the supporter 1.
  • the supporter 2 at the free end, the second main terminal 20 is located, is equipped with outer ribs 22 from.
  • Figure 5 shows the supporter 1 with the first main terminal 19 in a sectional view in which only the tapping connection terminals 7 and 5 can be seen, with the last or first turn of the first part winding 13 are connected.
  • the tapping terminal 7 is connected via the outlet 18 with a tap 17 of the second partial winding 14.
  • Figure 6 shows the supporter 1 according to Figure 5 in a plan view. There are all tapping connection terminals 3, 4, 5, 6,
  • first rib 23 has a sub-rib 25 which has approximately the same radius as the second rib 24.
  • Anzapfungsan term terminals below the sub-rib 25 and the second rib 24 are arranged.
  • the second connection rib 24 is configured radially slightly shorter than the remaining ribs 22 of the supporter 1.
  • FIG. 7 shows the winding unit 10 in a perspektivi rule representation, in which it can be seen that the tapping connection terminals 3, 4, 5, 6, 7 and 8 uniformly distributed over the circumference of the supporter 1 away and thus are arranged with the same radial distance from each other ,
  • the second support 2 with the second main connection terminal 20 can be seen.
  • the resin block 11 is shown, in which a high-voltage winding and two Unterwoodswicklun conditions are arranged.
  • the high-voltage winding is initially connected to the main terminals 19 and 20, where in the low-voltage windings with the Unterthesesan circuit terminals 25 is electrically connected.
  • the Wicklungskör by 11 is designed with a central mounting hole 26, which is provided for receiving a core leg.
  • the core leg is part of a ring-shaped around the Wick lungs stresses 11 extending magnetizable core unit for inductive coupling of the windings, which, however, figuratively depending but not shown.

Landscapes

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

Abstract

L'invention concerne une unité d'enroulement (10) destinée à être raccordée à un réseau à haute tension. L'unité d'enroulement comprend un enroulement (12) incorporé dans un corps isolant fixe (11) et une première borne de raccordement principale (19) qui est raccordée à une première extrémité de l'enroulement (12) et qui est disposée au niveau d'un premier support (1) formé au niveau du corps isolant (11). En outre, une deuxième borne de raccordement principale (20) est raccordée à une deuxième extrémité de l'enroulement (12). L'enroulement comporte des enroulements partiels (13, 14) et des prises (17) permettant de régler le nombre d'enroulements des enroulements partiels (13, 14) montés en série. Les prises (17) sont reliées à une borne de raccordement de prise (3, 4, 5, 6, 7, 8), accessible de l'extérieur, par des sorties de ligne (15, 16, 18), s'étendant dans le corps isolant (11). Pour encapsuler la haute tension dans le bloc de résine intégralement par une cage de blindage, il est proposé de former les bornes de raccordement de prise (3, 4, 5, 6, 7, 8) au niveau du support (1).
EP18800503.7A 2017-11-21 2018-10-24 Unité de bobinage avec raccordements formés sur le support Active EP3685413B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017220779.5A DE102017220779A1 (de) 2017-11-21 2017-11-21 Wicklungseinheit mit am Stützer ausgebildeten Anzapfungen
PCT/EP2018/079127 WO2019101460A1 (fr) 2017-11-21 2018-10-24 Unité d'enroulement à prises formées au niveau du support

Publications (2)

Publication Number Publication Date
EP3685413A1 true EP3685413A1 (fr) 2020-07-29
EP3685413B1 EP3685413B1 (fr) 2023-05-31

Family

ID=64270810

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18800503.7A Active EP3685413B1 (fr) 2017-11-21 2018-10-24 Unité de bobinage avec raccordements formés sur le support

Country Status (8)

Country Link
US (1) US11557424B2 (fr)
EP (1) EP3685413B1 (fr)
CN (1) CN111373497B (fr)
BR (1) BR112020009328B1 (fr)
CA (1) CA3083142C (fr)
DE (1) DE102017220779A1 (fr)
MX (1) MX2020005122A (fr)
WO (1) WO2019101460A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112216493A (zh) * 2020-09-27 2021-01-12 山东电力设备有限公司 一种大电流多分接线圈的出头结构

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2431244A (en) * 1946-06-08 1947-11-18 Westinghouse Electric Corp High-voltage metering apparatus
DE878406C (de) * 1950-09-13 1953-06-01 Friedrich Raupach Hochspannungstrockentransformator, insbesondere zweipolig isolierter Spannungswandler
AT181318B (de) * 1952-04-24 1955-03-10 Moser Glaser & Co Ag Hochspannungs-Trockentransformator mit einem stabförmigen, magnetisierbaren Kern
DE2640595B2 (de) 1976-09-09 1980-11-20 Transformatoren Union Ag, 7000 Stuttgart Wicklungsanordnung für einen Transformator mit in einen Kunstharzblock eingegossener Oberspannungswicklung
US4159457A (en) * 1977-10-25 1979-06-26 Burroughs Corporation Low voltage high current transformer
JP4509544B2 (ja) * 2003-01-21 2010-07-21 和夫 河野 巻線型トランス及びこの巻線型トランスを使用した電源装置
DE102006041501B4 (de) * 2006-08-31 2008-10-30 Cbp Guideway Systems Gmbh Isolator zur elektrisch isolierten Befestigung einer Stromschiene an einem Befestigungselement, insbesondere an einer Biegeweiche einer Magnetschwebebahn
CN101350247B (zh) * 2007-07-18 2010-09-08 大连北方互感器有限公司 电力机车用户外干式电压互感器
BRPI1101495B1 (pt) 2011-04-15 2020-09-24 Siemens Aktiengesellschaft Transformador de distribuição a seco trifásico ou monofásico e método de isolação elétrica para um painel de taps de um transformador de distribuição a seco trifásico ou monofásico
CN202205531U (zh) * 2011-08-15 2012-04-25 大连北方互感器集团有限公司 单相抽头式户外放电线圈
US20130043966A1 (en) 2011-08-15 2013-02-21 Abb Technology Ag Transformer tap projection and cover
KR101693021B1 (ko) 2015-04-09 2017-01-05 (주)대림엠이씨 부싱단자용 절연커버

Also Published As

Publication number Publication date
MX2020005122A (es) 2020-11-06
BR112020009328A8 (pt) 2023-02-07
CA3083142C (fr) 2023-03-14
US11557424B2 (en) 2023-01-17
DE102017220779A1 (de) 2019-05-23
BR112020009328B1 (pt) 2024-03-12
BR112020009328A2 (pt) 2020-10-27
EP3685413B1 (fr) 2023-05-31
CN111373497A (zh) 2020-07-03
CN111373497B (zh) 2023-07-21
US20200357566A1 (en) 2020-11-12
WO2019101460A1 (fr) 2019-05-31
CA3083142A1 (fr) 2019-05-31

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