JPS57170509A - Insulation process of dry-type transformer - Google Patents

Insulation process of dry-type transformer

Info

Publication number
JPS57170509A
JPS57170509A JP5509381A JP5509381A JPS57170509A JP S57170509 A JPS57170509 A JP S57170509A JP 5509381 A JP5509381 A JP 5509381A JP 5509381 A JP5509381 A JP 5509381A JP S57170509 A JPS57170509 A JP S57170509A
Authority
JP
Japan
Prior art keywords
windings
synthetic resin
resin
jig
impregnated
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
JP5509381A
Other languages
Japanese (ja)
Inventor
Kenichi Sato
Yoshihiro Ito
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5509381A priority Critical patent/JPS57170509A/en
Publication of JPS57170509A publication Critical patent/JPS57170509A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/127—Encapsulating or impregnating

Landscapes

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

Abstract

PURPOSE:To prevent leakage of impregnated resin in a dry-type transforme to achieve elaborate impregnation by a methode wherein an outer side surface and an axial-direction end surface of high-voltage and low-voltate windings are covered with an insulation substance through which impregnated resin cannot be penetrated and synthetic resin is impregnated into inner and outer insulators enveloping windings. CONSTITUTION:An inner insulating 13 and an outer insulating 14 consisting of glass cloth, mica sheets, polymid, etc. are applied on both a low-voltage winding 11 and a high-viltage winding 12 separated with a duct piece. Next, before impregnation of synthetic resin into these insulatings, an insulator 15 such as a thin laminated plate or plastic film through which synthetic resin does not pentrate is applied onto an outer side surface and end surfaces in the longitudinal direction of windings. After this, synthetic resin is inpregnated into windings 11 and 12 under vacuum, and then it is mounted on a rotary jig 17 in a heating furnace 16 and heated with the jig 17 rotated by a driving unit 18 to gelatinize resin. Afterwards, windings are taken out of the jig 17 and into a thermostatic oven to harden it fully.
JP5509381A 1981-04-14 1981-04-14 Insulation process of dry-type transformer Pending JPS57170509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5509381A JPS57170509A (en) 1981-04-14 1981-04-14 Insulation process of dry-type transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5509381A JPS57170509A (en) 1981-04-14 1981-04-14 Insulation process of dry-type transformer

Publications (1)

Publication Number Publication Date
JPS57170509A true JPS57170509A (en) 1982-10-20

Family

ID=12989117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5509381A Pending JPS57170509A (en) 1981-04-14 1981-04-14 Insulation process of dry-type transformer

Country Status (1)

Country Link
JP (1) JPS57170509A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0191694A1 (en) * 1985-02-08 1986-08-20 Schlumberger Canada Limited High voltage transformer and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0191694A1 (en) * 1985-02-08 1986-08-20 Schlumberger Canada Limited High voltage transformer and method

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