EP1715495A3 - Resin-insulated dry transformer - Google Patents

Resin-insulated dry transformer Download PDF

Info

Publication number
EP1715495A3
EP1715495A3 EP06075810A EP06075810A EP1715495A3 EP 1715495 A3 EP1715495 A3 EP 1715495A3 EP 06075810 A EP06075810 A EP 06075810A EP 06075810 A EP06075810 A EP 06075810A EP 1715495 A3 EP1715495 A3 EP 1715495A3
Authority
EP
European Patent Office
Prior art keywords
resin
dry transformer
electrically conductive
insulated dry
insulated
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Withdrawn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
EP06075810A
Other languages
German (de)
French (fr)
Other versions
EP1715495A2 (en
Inventor
Carlo TMC Italia S.p.A. Vaccari
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.)
TMC ITALIA S.P.A.
Original Assignee
TMC Italia SpA
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 TMC Italia SpA filed Critical TMC Italia SpA
Publication of EP1715495A2 publication Critical patent/EP1715495A2/en
Publication of EP1715495A3 publication Critical patent/EP1715495A3/en
Withdrawn legal-status Critical Current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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2876—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
    • H01F27/28—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
    • 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
    • H01F27/303—Clamping coils, windings or parts thereof together

Landscapes

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

Abstract

A resin-insulated dry transformer is described, said transformer comprising: a magnetic core (20); an electrically conductive primary winding; and an electrically conductive secondary winding. The secondary winding is electrically insulated from the primary winding and is linked to the primary winding by means of the magnetic core. The secondary winding comprises a cooling channel (33) with a number of spacers (10,10'). According to the invention, the spacers are made, at least partially, of an electrically conductive material.
EP06075810A 2005-04-21 2006-04-05 Resin-insulated dry transformer Withdrawn EP1715495A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI20050711 ITMI20050711A1 (en) 2005-04-21 2005-04-21 DRY TRANSFORMER ISOLATED IN RESIN

Publications (2)

Publication Number Publication Date
EP1715495A2 EP1715495A2 (en) 2006-10-25
EP1715495A3 true EP1715495A3 (en) 2011-09-28

Family

ID=36691883

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06075810A Withdrawn EP1715495A3 (en) 2005-04-21 2006-04-05 Resin-insulated dry transformer

Country Status (2)

Country Link
EP (1) EP1715495A3 (en)
IT (1) ITMI20050711A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102456475A (en) 2010-10-19 2012-05-16 通用电气公司 Magnetic element
EP2549495B1 (en) * 2011-07-18 2018-05-23 ABB Schweiz AG Dry type transformer
CN102723181B (en) * 2012-06-11 2015-08-26 常熟市常源变压器有限公司 A kind of low voltage coil for dry transformer
ES2616270T3 (en) * 2013-07-17 2017-06-12 Abb Schweiz Ag Dry transformer
US20230326653A1 (en) * 2021-07-19 2023-10-12 Hitachi Energy Switzerland Ag Support structure and transformer including a support structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170225A (en) * 1957-03-15 1965-02-23 Gen Electric Method of making foil wound electrical coils
GB1087594A (en) * 1964-10-23 1967-10-18 Westinghouse Electric Corp Electrical apparatus
EP0056580A1 (en) * 1981-01-16 1982-07-28 Smit Transformatoren B.V. Winding for an air-cooled dry transformer or reactor having spacers in the air channels
US5621372A (en) * 1993-03-17 1997-04-15 Square D Company Single phase dry-type transformer
DE19854439A1 (en) * 1998-11-25 2000-06-15 Siemens Ag Transformer - especially cast resin transformer
WO2003107364A1 (en) * 2001-12-21 2003-12-24 Abb T & D Technology Ltd. Integrated cooling duct for resin-encapsulated distribution transformer coils

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170225A (en) * 1957-03-15 1965-02-23 Gen Electric Method of making foil wound electrical coils
GB1087594A (en) * 1964-10-23 1967-10-18 Westinghouse Electric Corp Electrical apparatus
EP0056580A1 (en) * 1981-01-16 1982-07-28 Smit Transformatoren B.V. Winding for an air-cooled dry transformer or reactor having spacers in the air channels
US5621372A (en) * 1993-03-17 1997-04-15 Square D Company Single phase dry-type transformer
DE19854439A1 (en) * 1998-11-25 2000-06-15 Siemens Ag Transformer - especially cast resin transformer
WO2003107364A1 (en) * 2001-12-21 2003-12-24 Abb T & D Technology Ltd. Integrated cooling duct for resin-encapsulated distribution transformer coils

Also Published As

Publication number Publication date
ITMI20050711A1 (en) 2006-10-22
EP1715495A2 (en) 2006-10-25

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