JPS5763816A - Molded transformer coil - Google Patents

Molded transformer coil

Info

Publication number
JPS5763816A
JPS5763816A JP13880580A JP13880580A JPS5763816A JP S5763816 A JPS5763816 A JP S5763816A JP 13880580 A JP13880580 A JP 13880580A JP 13880580 A JP13880580 A JP 13880580A JP S5763816 A JPS5763816 A JP S5763816A
Authority
JP
Japan
Prior art keywords
resin
combining
insulating tube
main body
end part
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.)
Pending
Application number
JP13880580A
Other languages
Japanese (ja)
Inventor
Hirobumi Kubo
Toshiyuki Fujimori
Akihiro Ooyama
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13880580A priority Critical patent/JPS5763816A/en
Publication of JPS5763816A publication Critical patent/JPS5763816A/en
Pending 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
    • H01F27/32—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulating Of Coils (AREA)

Abstract

PURPOSE:To improve the combining strength and to enhance reliability, by combining insulating tubes and an end part insulator by the adhesive power of resin and the mechanical combining power of fibrinous material. CONSTITUTION:A coil main body 9 is formed by winding a conductor 10 via interlayer insulators 11 on the inner insulating tube 1 which is formed by impregnating thermosetting resin 2 into the fibrinous material. The outer insulating tube 12 which is formed by the same material as that of the inner insulating tube is provided on the coil main body 9. By preliminarily drying said device, the resin 2 in the insulating tubes 1 and 12 is perfectly cured. Then the thermosetting resin 14 is injected, heated, and cured, and the insulating tubes 1 and 12 and the end part insulator 15 are strongly combined.
JP13880580A 1980-10-06 1980-10-06 Molded transformer coil Pending JPS5763816A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13880580A JPS5763816A (en) 1980-10-06 1980-10-06 Molded transformer coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13880580A JPS5763816A (en) 1980-10-06 1980-10-06 Molded transformer coil

Publications (1)

Publication Number Publication Date
JPS5763816A true JPS5763816A (en) 1982-04-17

Family

ID=15230642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13880580A Pending JPS5763816A (en) 1980-10-06 1980-10-06 Molded transformer coil

Country Status (1)

Country Link
JP (1) JPS5763816A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2630253A1 (en) * 1988-04-19 1989-10-20 Alsthom METHOD FOR IMPROVING THE FIRE RESISTANCE OF A DRY ELECTRICAL TRANSFORMER
EP1631972A2 (en) * 2003-06-11 2006-03-08 ABB Technology AG Low voltage composite mold
WO2008046236A1 (en) * 2006-10-19 2008-04-24 Abb Research Ltd Low voltage coil and transformer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2630253A1 (en) * 1988-04-19 1989-10-20 Alsthom METHOD FOR IMPROVING THE FIRE RESISTANCE OF A DRY ELECTRICAL TRANSFORMER
EP1631972A2 (en) * 2003-06-11 2006-03-08 ABB Technology AG Low voltage composite mold
EP1631972A4 (en) * 2003-06-11 2011-04-06 Abb Technology Ag Low voltage composite mold
WO2008046236A1 (en) * 2006-10-19 2008-04-24 Abb Research Ltd Low voltage coil and transformer

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