JPS5457199A - Bushing and method of producing same - Google Patents

Bushing and method of producing same

Info

Publication number
JPS5457199A
JPS5457199A JP12296377A JP12296377A JPS5457199A JP S5457199 A JPS5457199 A JP S5457199A JP 12296377 A JP12296377 A JP 12296377A JP 12296377 A JP12296377 A JP 12296377A JP S5457199 A JPS5457199 A JP S5457199A
Authority
JP
Japan
Prior art keywords
bushing
core
reduce
insulating paper
insulators
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
JP12296377A
Other languages
Japanese (ja)
Other versions
JPS5938685B2 (en
Inventor
Nobuo Kubo
Nobuaki Hattori
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 JP12296377A priority Critical patent/JPS5938685B2/en
Publication of JPS5457199A publication Critical patent/JPS5457199A/en
Publication of JPS5938685B2 publication Critical patent/JPS5938685B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Insulators (AREA)
  • Insulating Bodies (AREA)

Abstract

PURPOSE: To reduce the packaging and transportation cost of bushing carried in horizontal state, to reduce the total oil amount of the bushing and to improve the reliability of the bushing by forming the inside core in conical state at both ends by utilizing a laser for cutting insulating paper.
CONSTITUTION: An inside core 12 formed by winding insulating paper on the outer periphery of the center conductor 1 is contained in a container composed of insulators 4, 5, fittings 7, and upper cap 6 with insulating oil 3 to thus form a bushing. Nitrogen gas is sealed on the oil surface in the cap 6. The insulating paper wound on the outer periphery of the conductor 1 is cut in predetermined width by a laser. Thus, thread-like chips are not produced upon cutting of the end of the paper. Both ends of the core 12 are formed in conical shape to thus cause the core 12 to be laid along the inside shape of the insulators 4, 5 so as to reduce the total oil amount in the bushing
COPYRIGHT: (C)1979,JPO&Japio
JP12296377A 1977-10-15 1977-10-15 Method of manufacturing bushings Expired JPS5938685B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12296377A JPS5938685B2 (en) 1977-10-15 1977-10-15 Method of manufacturing bushings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12296377A JPS5938685B2 (en) 1977-10-15 1977-10-15 Method of manufacturing bushings

Publications (2)

Publication Number Publication Date
JPS5457199A true JPS5457199A (en) 1979-05-08
JPS5938685B2 JPS5938685B2 (en) 1984-09-18

Family

ID=14848944

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12296377A Expired JPS5938685B2 (en) 1977-10-15 1977-10-15 Method of manufacturing bushings

Country Status (1)

Country Link
JP (1) JPS5938685B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020059781A1 (en) * 2018-09-21 2020-03-26 日新電機株式会社 Current transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020059781A1 (en) * 2018-09-21 2020-03-26 日新電機株式会社 Current transformer

Also Published As

Publication number Publication date
JPS5938685B2 (en) 1984-09-18

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