JPS57202716A - Split-type current transformer - Google Patents

Split-type current transformer

Info

Publication number
JPS57202716A
JPS57202716A JP56090086A JP9008681A JPS57202716A JP S57202716 A JPS57202716 A JP S57202716A JP 56090086 A JP56090086 A JP 56090086A JP 9008681 A JP9008681 A JP 9008681A JP S57202716 A JPS57202716 A JP S57202716A
Authority
JP
Japan
Prior art keywords
iron core
split
tape
gap
wound
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
JP56090086A
Other languages
Japanese (ja)
Other versions
JPS622447B2 (en
Inventor
Yasutake Murakami
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56090086A priority Critical patent/JPS57202716A/en
Publication of JPS57202716A publication Critical patent/JPS57202716A/en
Publication of JPS622447B2 publication Critical patent/JPS622447B2/ja
Granted 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

Abstract

PURPOSE:To increase productivity and to reduce manufacturing costs by a method wherein the external circumference of a coil wound on a split iron core is armored by a tape impregnating heat-cured synthetic resin in a substrate and foaming resin is filled in the gap between the iron core around a split section and the tape. CONSTITUTION:The terminal section 3a of a prepreg tape 3 is wound by meeting with the split section 1c of an iron core and the end section of the secondary coil 2 is wound by separating from the split end of the iron core by about 10mm. to provide a gap 2a and an iron core insulating material, the prepreg tape 3, and foaming resin sheet 6 having adhesiveness are wound in the gap 2a. In applying heating cure to the tape 3, the gap 2a is hermetically sealed by foaming 6a the sheet 6. A heat fomaing member may be heated and foamed by injecting foaming urethane or epoxy resin. In this composition, the molded metal mold is unnecessary to simplify work andto reduce costs. The exfoliation and cracks of an armor insulator can be prevented by moderate buffer action by foaming resin.
JP56090086A 1981-06-08 1981-06-08 Split-type current transformer Granted JPS57202716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56090086A JPS57202716A (en) 1981-06-08 1981-06-08 Split-type current transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56090086A JPS57202716A (en) 1981-06-08 1981-06-08 Split-type current transformer

Publications (2)

Publication Number Publication Date
JPS57202716A true JPS57202716A (en) 1982-12-11
JPS622447B2 JPS622447B2 (en) 1987-01-20

Family

ID=13988707

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56090086A Granted JPS57202716A (en) 1981-06-08 1981-06-08 Split-type current transformer

Country Status (1)

Country Link
JP (1) JPS57202716A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007120796A2 (en) * 2006-04-14 2007-10-25 Abb Technology Ag Transformer with foamed insulating material and method of manufacturing the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS527978A (en) * 1975-07-09 1977-01-21 Chugai Pharmaceut Co Ltd Process for preparing 2,3-dihydro-4 (1h)-quinazolinone derivatives

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS527978A (en) * 1975-07-09 1977-01-21 Chugai Pharmaceut Co Ltd Process for preparing 2,3-dihydro-4 (1h)-quinazolinone derivatives

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007120796A2 (en) * 2006-04-14 2007-10-25 Abb Technology Ag Transformer with foamed insulating material and method of manufacturing the same
WO2007120796A3 (en) * 2006-04-14 2007-12-06 Abb Technology Ag Transformer with foamed insulating material and method of manufacturing the same

Also Published As

Publication number Publication date
JPS622447B2 (en) 1987-01-20

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