JPS56165306A - Apparatus having pressure - Google Patents

Apparatus having pressure

Info

Publication number
JPS56165306A
JPS56165306A JP6891380A JP6891380A JPS56165306A JP S56165306 A JPS56165306 A JP S56165306A JP 6891380 A JP6891380 A JP 6891380A JP 6891380 A JP6891380 A JP 6891380A JP S56165306 A JPS56165306 A JP S56165306A
Authority
JP
Japan
Prior art keywords
expansion joint
inside diameter
pressure
bushing
attraction
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
JP6891380A
Other languages
Japanese (ja)
Other versions
JPS6259446B2 (en
Inventor
Hiroyoshi Otani
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 JP6891380A priority Critical patent/JPS56165306A/en
Publication of JPS56165306A publication Critical patent/JPS56165306A/en
Publication of JPS6259446B2 publication Critical patent/JPS6259446B2/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
    • H01F27/02—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)
  • Gas-Insulated Switchgears (AREA)

Abstract

PURPOSE:To decrease attraction or repulsion generated between mutual apparatus having pressure, and to simplify the supporting structure from the groundwork thereof by a method wherein the inside diameter of an expansion joint between the mutual apparatus is made smaller than the inside diameter of a connecting vessel having an expansion joint fitted thereto. CONSTITUTION:A gas valve 8 is equipped to the expansion joint 9A connected to a bushing pocket 12 protruding from a transformer tank, and is supported by a supporting frame 13. While a lead wire 6 led out from the transformer is connected to the gas valve 8 through a heat part shield 7B of wall bushing and an insulator 7A. An insulating oil is filled up in the bushing pocket 12, and a decomposed gas detector 10 is equipped thereon. By making the inside diameter DA of the expansion joint 9A smaller than the inside diameter D of the bushing pocket 12, the pressure receiving area of the expansion joint 9A is reduced to (DA/D)<2> times, and pressure P kg/cm<2> of attraction or repulstion generated mutually between the apparatus can be reduced to (DA/D)<2> times also.
JP6891380A 1980-05-26 1980-05-26 Apparatus having pressure Granted JPS56165306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6891380A JPS56165306A (en) 1980-05-26 1980-05-26 Apparatus having pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6891380A JPS56165306A (en) 1980-05-26 1980-05-26 Apparatus having pressure

Publications (2)

Publication Number Publication Date
JPS56165306A true JPS56165306A (en) 1981-12-18
JPS6259446B2 JPS6259446B2 (en) 1987-12-11

Family

ID=13387363

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6891380A Granted JPS56165306A (en) 1980-05-26 1980-05-26 Apparatus having pressure

Country Status (1)

Country Link
JP (1) JPS56165306A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200474510Y1 (en) * 2013-02-18 2014-09-23 엘에스산전 주식회사 Electromagnetic switching device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239708U (en) * 1975-09-12 1977-03-22
JPS5298948A (en) * 1976-02-16 1977-08-19 Nissin Electric Co Ltd Coupling device for gas insulated electrical appliances and oillimmersed electrical machinery and apparatus
JPS538536U (en) * 1976-07-07 1978-01-25
JPS5532487A (en) * 1978-08-29 1980-03-07 Mitsubishi Electric Corp Insulated conductor connecting device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5171827A (en) * 1974-12-19 1976-06-22 Sumitomo Metal Ind Renzokuchuzoni okeru arukaridoruigenso kidoruigensono tenkahoho

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239708U (en) * 1975-09-12 1977-03-22
JPS5298948A (en) * 1976-02-16 1977-08-19 Nissin Electric Co Ltd Coupling device for gas insulated electrical appliances and oillimmersed electrical machinery and apparatus
JPS538536U (en) * 1976-07-07 1978-01-25
JPS5532487A (en) * 1978-08-29 1980-03-07 Mitsubishi Electric Corp Insulated conductor connecting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200474510Y1 (en) * 2013-02-18 2014-09-23 엘에스산전 주식회사 Electromagnetic switching device
US8884729B2 (en) 2013-02-18 2014-11-11 Lsis Co., Ltd. Electromagnetic switching device

Also Published As

Publication number Publication date
JPS6259446B2 (en) 1987-12-11

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