JPS55146916A - Branching box for gas insulating bus direct coupling type oil-filled transformer - Google Patents

Branching box for gas insulating bus direct coupling type oil-filled transformer

Info

Publication number
JPS55146916A
JPS55146916A JP5416679A JP5416679A JPS55146916A JP S55146916 A JPS55146916 A JP S55146916A JP 5416679 A JP5416679 A JP 5416679A JP 5416679 A JP5416679 A JP 5416679A JP S55146916 A JPS55146916 A JP S55146916A
Authority
JP
Japan
Prior art keywords
gas
bushing
shape
insulating oil
distance
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
JP5416679A
Other languages
Japanese (ja)
Inventor
Hiroshi Miyauchi
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 JP5416679A priority Critical patent/JPS55146916A/en
Publication of JPS55146916A publication Critical patent/JPS55146916A/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
    • H01F27/02—Casings
    • H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)

Abstract

PURPOSE:To make compact a metal bellows and a gas bus box by a method wherein an inclined through bushing is arranged considering the insulating characteristics of insulating oil and SF6 gas so as to make smaller the diameter of the tip of a bushing pocket. CONSTITUTION:Since it is possible to shorten a relative distance and a distance from the ground for a shield 8 in a live part on an SF6 gas side 13 as compared with a shield 7 in a live part on an insulating oil side 3, the shape of a cylindrical bushing pocket 4 is formed in the shape of a cone in proportion to the ratio of the insulation break-down strength of the insulating oil 3 to that of the SF6 gas. The inclined angle of a through bushing 6 to a fitting plate 5 is such that a distance between shields 7 and a distance between the bushing pocket 4 and the ground on the insulating oil side are maintained, while the live part on the SF6 gas side has a dimension sufficient to satisfy the insulation break-down strength, so that the shields 7, 8 arranged in the shape of a concentric cone. For this, a metal bellows to be fixed to the portion having a small diameter of the bushing pocket 4 made in a cone shape can be compact, and the diameter of a gas bus box 11 is minimized.
JP5416679A 1979-05-04 1979-05-04 Branching box for gas insulating bus direct coupling type oil-filled transformer Pending JPS55146916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5416679A JPS55146916A (en) 1979-05-04 1979-05-04 Branching box for gas insulating bus direct coupling type oil-filled transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5416679A JPS55146916A (en) 1979-05-04 1979-05-04 Branching box for gas insulating bus direct coupling type oil-filled transformer

Publications (1)

Publication Number Publication Date
JPS55146916A true JPS55146916A (en) 1980-11-15

Family

ID=12962955

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5416679A Pending JPS55146916A (en) 1979-05-04 1979-05-04 Branching box for gas insulating bus direct coupling type oil-filled transformer

Country Status (1)

Country Link
JP (1) JPS55146916A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59147224U (en) * 1983-03-18 1984-10-02 富士通株式会社 Assembly structure of information processing equipment
JPH0385702A (en) * 1989-08-30 1991-04-10 Hitachi Ltd Apparatus for connection of containers of electric machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59147224U (en) * 1983-03-18 1984-10-02 富士通株式会社 Assembly structure of information processing equipment
JPH0385702A (en) * 1989-08-30 1991-04-10 Hitachi Ltd Apparatus for connection of containers of electric machines

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