EP0102513A1 - Transformateur à sec avec enroulements fondus dans une résine de coulée - Google Patents

Transformateur à sec avec enroulements fondus dans une résine de coulée Download PDF

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Publication number
EP0102513A1
EP0102513A1 EP83107410A EP83107410A EP0102513A1 EP 0102513 A1 EP0102513 A1 EP 0102513A1 EP 83107410 A EP83107410 A EP 83107410A EP 83107410 A EP83107410 A EP 83107410A EP 0102513 A1 EP0102513 A1 EP 0102513A1
Authority
EP
European Patent Office
Prior art keywords
winding
winding parts
cast resin
windings
cast
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
EP83107410A
Other languages
German (de)
English (en)
Other versions
EP0102513B1 (fr
Inventor
Gerhard Dipl.-Ing. Altmann
Friedrich Alber
Lothar Brzuska
Klaus Seeliger
Walter Schaich
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.)
Transformatoren Union AG
Original Assignee
Transformatoren Union 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 Transformatoren Union AG filed Critical Transformatoren Union AG
Priority to AT83107410T priority Critical patent/ATE17617T1/de
Publication of EP0102513A1 publication Critical patent/EP0102513A1/fr
Application granted granted Critical
Publication of EP0102513B1 publication Critical patent/EP0102513B1/fr
Expired legal-status Critical Current

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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
    • H01F27/08—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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other 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
    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/327—Encapsulating or impregnating
    • H01F2027/328—Dry-type transformer with encapsulated foil winding, e.g. windings coaxially arranged on core legs with spacers for cooling and with three phases

Definitions

  • the invention relates to a dry transformer with windings cast in cast resin and with at least one axial cooling channel provided in addition to the main scattering channel, preferably in the winding lying radially outside the main scattering channel.
  • a cast-resin-insulated transformer winding with additional axial cooling channels lying inside the cast-resin body is already known from DE-AS 21 04 112.
  • the production of cast resin bodies enveloping such windings is, however, very complex in terms of production technology.
  • this known winding design does not significantly change the practically existing function between the cast resin body piece weight and the nominal power of the transformer. In principle, nothing changes even if the windings are axially divided into several partial windings. For a technically Krt 2 Po / 02.08.1982 Usable and sufficiently economical feasibility of ever increasing ratings of cast resin transformers, therefore, further solutions are necessary.
  • the invention is therefore based on the object of designing the winding structure for cast-resin-insulated transformer windings with additional cooling ducts in such a way that cooling ducts are formed solely by the arrangement of the parts, and all parts can be produced using known methods without particular difficulties, and yet without increasing the piece weights of the cast resin body a significant increase in the maximum possible unit performance of the transformers provided with this winding structure is guaranteed.
  • windings provided with additional cooling channels are divided into mutually coaxial winding parts, each of which is cast in a special casting mold with casting resin, that these winding parts have cross-sectional dimensions that keep cooling channel-forming distances between adjacent winding parts free, that in the circumferential direction
  • Known 180 ° staggered reinforcements of the cast resin layer on the outer jacket of the outermost cast resin body wear mains connection terminals and tap terminals and at the same time serve to accommodate axially extending connecting conductors for the electrical connection of the winding parts and that the winding parts belonging to the same winding after their assembly by clamping between all windings or winding parts common elastic blocks are galvanically connected to each other in front of the end faces of the cast resin body.
  • the high-voltage winding is on the outside and has an additional cooling duct, the insulation of the winding part lying between the main scattering duct and the additional cooling duct being designed for the full nominal voltage and the insulation of the winding part lying outside the additional cooling duct for about half the rated voltage is designed.
  • the winding parts of this high-voltage winding are each constructed from individual coils connected in series in such a way that the galvanic connections of these individual coils for the inner winding part are accommodated in a strip formed by the casting opening of the casting mold on the outer jacket of the cast resin body, and for the outer winding part in which the power supply terminals are carried Reinforcement of the cast resin body.
  • winding parts themselves are electrically connected in series and the input turns 30 of all winding parts are spatially in the same winding end.
  • the winding conductor ends used to connect the winding parts are located in the region of the end faces of the cast resin body in insulating tubes which are used during the Casting process simultaneously serve as a seal between the winding conductor end and a mold.
  • the cross section of the cast resin bodies advantageously represents approximately a circular ring, and the cast resin bodies do not touch one another in their installed position. Aba support strips are not required and would also adversely affect the electrical strength in the associated cooling channel.
  • Dry transformers constructed according to the invention are very advantageous because. they allow an increase in the unit performance of cast-resin-insulated transformers while maintaining the manufacturing facilities and manufacturing processes that were previously customary for their manufacture.
  • An undervoltage winding 2 and an high-voltage winding comprising an inner winding part 4 and an outer winding part 5 are arranged radially from the inside to the outside of a laminated iron core 1.
  • the undervoltage winding 2 and the inner winding part 4 include a main stray channel 3, which also acts as a cooling channel.
  • the coaxially interlocking winding parts 4 and 5 of the upper voltage winding flank an additional cooling channel 6.
  • the undervoltage winding 2 and the winding parts 4 and 5 are held in their installed position by at least partially elastic blocks 7, the blocks 7 engaging on the one hand with lugs in the main stray duct 3 and the additional cooling duct 6 and on the other hand in a manner not shown in detail on one also support the iron core of the transformer that holds the press frame together.
  • the elastic blocks 7 are distributed approximately uniformly over the circumference of the undervoltage winding 2 and the winding parts 4 and 5 and preferably form angles of approximately 45 ° with the longitudinal axis of the transformer.
  • FIGS. 3 and 4 each form an angle of 90 ° with the longitudinal axis of the transformer and show the arrangement of power supply terminals 8 and tap terminals 9.
  • Coil connections 11 for the galvanic are also in one plane with the power supply terminals 8 Connection of the individual coils in the winding parts 4 and 5 and axially extending connecting conductors for the electrical connection of the winding parts 4 and 5 housed.
  • the axially extending connecting conductors are led out of the cast resin bodies through the end faces and are connected to one another by insulated bridges 12 to form a so-called single-layer circuit of the two winding parts 4 and 5.
  • Reinforcements 10 are used to ensure the required insulation distances within the cast resin body Cast resin layer on the outer winding part 5 of the high-voltage winding.
  • a web (not shown), which is simultaneously formed by the mold filling opening, can be used to accommodate the coil connections 11, if necessary.
  • the winding conductor ends led out of the cast resin bodies in the axial direction through the end faces lie in hoses made of elastic insulating material or of another suitable insulating material which at the same time brings about the sealing between the winding conductors and the casting mold.
  • the mains connection terminals 8 lie on thorn-like projections cast onto the outer cast resin body and carry a switching strip 13 through which the high-voltage windings of the transformer, preferably in a delta connection, are connected to one another.
  • the bridges 12 together with the axially extending connecting conductors within one of the reinforcements 10 serve for the above-mentioned single-layer switching of the winding parts 4 and 5.
  • the single-layer switching enforces a uniform voltage load of approximately half the nominal voltage over the entire length of the additional cooling channel 6 .
  • the winding part 4 preferably carries the higher voltage, so that the insulation of the winding part 5, apart from the mains connection on the high-voltage side, can only be dimensioned for half the nominal voltage.
  • a further reinforcement 10 is provided, on which tap terminals 9 are also arranged in radially protruding elevations are, which in the de-energized state by switching bridges 14 allow a gradual adaptation of the transformation ratio of the transformer to different network loads.
  • the tap windings are provided in the middle individual coils of the outer winding part 5 of the high-voltage winding. Instead of two, more taps are possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulating Of Coils (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)
EP83107410A 1982-08-06 1983-07-27 Transformateur à sec avec enroulements fondus dans une résine de coulée Expired EP0102513B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83107410T ATE17617T1 (de) 1982-08-06 1983-07-27 Trockentransformator mit in giessharz eingegossenen wicklungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3229480 1982-08-06
DE19823229480 DE3229480A1 (de) 1982-08-06 1982-08-06 Trockentransformator mit in giessharz eingegossenen wicklungen

Publications (2)

Publication Number Publication Date
EP0102513A1 true EP0102513A1 (fr) 1984-03-14
EP0102513B1 EP0102513B1 (fr) 1986-01-22

Family

ID=6170340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83107410A Expired EP0102513B1 (fr) 1982-08-06 1983-07-27 Transformateur à sec avec enroulements fondus dans une résine de coulée

Country Status (6)

Country Link
US (1) US4523171A (fr)
EP (1) EP0102513B1 (fr)
JP (1) JPS5944810A (fr)
AT (1) ATE17617T1 (fr)
DE (2) DE3229480A1 (fr)
NO (1) NO159893C (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19809572A1 (de) * 1998-03-05 1999-10-14 Siemens Ag Gießharz-Transformator
WO2006103193A3 (fr) * 2005-04-01 2007-02-22 Siemens Ag Transformateur pourvu d'un blindage electrique
DE102007053685A1 (de) * 2007-11-10 2009-05-14 Abb Technology Ag Herstellungsverfahren für eine mehrlagige Transformatorwicklung mit Isolationsschicht
EP2651020A3 (fr) * 2012-04-10 2016-10-26 RITZ Instrument Transformers GmbH Convertisseur de tension

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3741032A1 (de) * 1987-12-03 1989-06-15 Mitsubishi Electric Corp Hochspannungstransformator
US5656984A (en) * 1995-04-06 1997-08-12 Centre D'innovation Sur Le Transport D'energie Du Quebec Solid insulation transformer
GB2343300B (en) * 1995-04-06 2000-06-07 D Innovation Sur Le Transport Solid insulation transformer
WO1996031888A1 (fr) * 1995-04-06 1996-10-10 Centre D'innovation Sur Le Transport D'energie Du Quebec Transformateur a isolation a corps solide
US6376775B1 (en) 1996-05-29 2002-04-23 Abb Ab Conductor for high-voltage windings and a rotating electric machine comprising a winding including the conductor
SE9602079D0 (sv) 1996-05-29 1996-05-29 Asea Brown Boveri Roterande elektriska maskiner med magnetkrets för hög spänning och ett förfarande för tillverkning av densamma
PL330202A1 (en) 1996-05-29 1999-04-26 Asea Brown Boveri Insulated conductor for high-voltage windings and method of making same
BR9709391A (pt) 1996-05-29 1999-08-10 Asea Brown Boveri Instalações que compreendem máquinas elétricas rotativas
SE509072C2 (sv) 1996-11-04 1998-11-30 Asea Brown Boveri Anod, anodiseringsprocess, anodiserad tråd och användning av sådan tråd i en elektrisk anordning
SE512917C2 (sv) 1996-11-04 2000-06-05 Abb Ab Förfarande, anordning och kabelförare för lindning av en elektrisk maskin
SE510422C2 (sv) 1996-11-04 1999-05-25 Asea Brown Boveri Magnetplåtkärna för elektriska maskiner
SE515843C2 (sv) 1996-11-04 2001-10-15 Abb Ab Axiell kylning av rotor
SE9704421D0 (sv) 1997-02-03 1997-11-28 Asea Brown Boveri Seriekompensering av elektrisk växelströmsmaskin
SE9704427D0 (sv) 1997-02-03 1997-11-28 Asea Brown Boveri Infästningsanordning för elektriska roterande maskiner
SE508543C2 (sv) 1997-02-03 1998-10-12 Asea Brown Boveri Hasplingsanordning
SE9704422D0 (sv) 1997-02-03 1997-11-28 Asea Brown Boveri Ändplatta
SE9704423D0 (sv) 1997-02-03 1997-11-28 Asea Brown Boveri Roterande elektrisk maskin med spolstöd
SE508544C2 (sv) 1997-02-03 1998-10-12 Asea Brown Boveri Förfarande och anordning för montering av en stator -lindning bestående av en kabel.
AU9362998A (en) 1997-11-28 1999-06-16 Asea Brown Boveri Ab Method and device for controlling the magnetic flux with an auxiliary winding ina rotating high voltage electric alternating current machine
US6801421B1 (en) 1998-09-29 2004-10-05 Abb Ab Switchable flux control for high power static electromagnetic devices
DE19854439C2 (de) * 1998-11-25 2000-10-12 Siemens Ag Transformator - insbesondere Giessharztransformator
US7023312B1 (en) 2001-12-21 2006-04-04 Abb Technology Ag Integrated cooling duct for resin-encapsulated distribution transformer coils
US7808360B1 (en) 2004-12-20 2010-10-05 Abb Technology Ag Cushioning materials and method for applying the same to resin cast transformers
KR101707813B1 (ko) * 2009-06-30 2017-02-27 에이비비 슈바이쯔 아게 개선된 냉각 특징을 구비한 건식 변압기
ES2540817T3 (es) * 2009-10-19 2015-07-13 Abb Technology Ag Transformador
EP2333798B1 (fr) * 2009-12-08 2015-08-26 ABB Technology AG Système d'échangeur de chaleur pour transformateurs non immergés
BR112013005110A2 (pt) * 2010-09-01 2016-05-10 Abb Technology Ag transformador arrefecido com ao menos um enrolamento de cinta
CN110323050B (zh) * 2018-03-28 2022-04-05 台达电子工业股份有限公司 高压线圈、高压线圈制作方法与变压器
CN112071604B (zh) * 2020-08-07 2021-11-19 华翔翔能科技股份有限公司 一种干变高压浇注模具

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2246235B2 (de) * 1972-09-21 1978-08-24 Transformatoren Union Ag, 7000 Stuttgart Trockentransformator
DE2104112B2 (de) * 1971-01-29 1978-09-14 Transformatoren Union Ag, 7000 Stuttgart Verfahren zur Herstellung von Kühlkanälen in einer in Kunstharz vergossenen Wicklung
EP0075796A1 (fr) * 1981-09-30 1983-04-06 Transformatoren Union Aktiengesellschaft Transformateur avec enroulements encastrés dans de la résine moulée

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677810A (en) * 1950-10-14 1954-05-04 Gen Electric Step voltage regulator
US2685677A (en) * 1950-11-29 1954-08-03 Gen Electric Cooling system for electrical apparatus
US2783441A (en) * 1952-07-25 1957-02-26 Gen Electric Transformer
US2756397A (en) * 1952-07-25 1956-07-24 Gen Electric Transformer
GB1426135A (en) * 1974-03-19 1976-02-25 Novolipetsky Metall Z Lining metallurgical vessels
US4129938A (en) * 1975-08-25 1978-12-19 Hariolf Hagenbucher Method of making tubular coils with cooling and insulating channels

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2104112B2 (de) * 1971-01-29 1978-09-14 Transformatoren Union Ag, 7000 Stuttgart Verfahren zur Herstellung von Kühlkanälen in einer in Kunstharz vergossenen Wicklung
DE2246235B2 (de) * 1972-09-21 1978-08-24 Transformatoren Union Ag, 7000 Stuttgart Trockentransformator
EP0075796A1 (fr) * 1981-09-30 1983-04-06 Transformatoren Union Aktiengesellschaft Transformateur avec enroulements encastrés dans de la résine moulée

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, unexamined applications, E Section, Vol. 5, No. 66, May 2, 1981 THE PATENT OFFICE JAPANESE GOVERNMENT, page 20 E 55 & JP-A-56 015 011 (TOKYO SHIBAURA) *
PATENT ABSTRACTS OF JAPAN, unexamined applications, E Section, Vol.5, No. 27, February 18, 1981 THE PATENT OFFICE JAPANESE GOVERNMENT, page III E 46 & JP-A-55 154 717 (MITSUBISHI) *
PATENT ABSTRACTS OF JAPAN, unexamined applications, E Section, Vol.5, No. 30, February 24, 1981 THE PATENT OFFICE JAPANESE GOVERNMENT, page 31 E 47 & JP-A-55 156 315 (TOKYO SHIBAURA) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19809572A1 (de) * 1998-03-05 1999-10-14 Siemens Ag Gießharz-Transformator
DE19809572C2 (de) * 1998-03-05 2000-06-21 Siemens Ag Gießharz-Transformator
WO2006103193A3 (fr) * 2005-04-01 2007-02-22 Siemens Ag Transformateur pourvu d'un blindage electrique
US8085121B2 (en) 2005-04-01 2011-12-27 Siemens Aktiengesellschaft Transformer with electrical shield
DE102007053685A1 (de) * 2007-11-10 2009-05-14 Abb Technology Ag Herstellungsverfahren für eine mehrlagige Transformatorwicklung mit Isolationsschicht
EP2651020A3 (fr) * 2012-04-10 2016-10-26 RITZ Instrument Transformers GmbH Convertisseur de tension

Also Published As

Publication number Publication date
JPS5944810A (ja) 1984-03-13
ATE17617T1 (de) 1986-02-15
EP0102513B1 (fr) 1986-01-22
NO832374L (no) 1984-02-07
NO159893B (no) 1988-11-07
NO159893C (no) 1989-02-15
US4523171A (en) 1985-06-11
DE3361926D1 (en) 1986-03-06
DE3229480A1 (de) 1984-02-09

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