JPS5681909A - Terminal conductor connecting system - Google Patents

Terminal conductor connecting system

Info

Publication number
JPS5681909A
JPS5681909A JP15918479A JP15918479A JPS5681909A JP S5681909 A JPS5681909 A JP S5681909A JP 15918479 A JP15918479 A JP 15918479A JP 15918479 A JP15918479 A JP 15918479A JP S5681909 A JPS5681909 A JP S5681909A
Authority
JP
Japan
Prior art keywords
shield
oil
insulators
solid state
solid
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
JP15918479A
Other languages
Japanese (ja)
Other versions
JPS6259450B2 (en
Inventor
Hideki Takahashi
Kazuo Kobayashi
Yuzo Oka
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 JP15918479A priority Critical patent/JPS5681909A/en
Publication of JPS5681909A publication Critical patent/JPS5681909A/en
Publication of JPS6259450B2 publication Critical patent/JPS6259450B2/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)
  • Cable Accessories (AREA)
  • Insulating Of Coils (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Insulators (AREA)

Abstract

PURPOSE:To improve a DC flashover voltage by eliminating a high electric field at a gap between shield upper and lower bushings and lead wires by arranging a solid insulator composed of an oil impregnated paper at the peripheral area of a conductor. CONSTITUTION:Filling material of solid insulators 13, 14 is filled in each gap between a bushing 12 and a shield 25 and between the shield 25 and a lead wire 24. A cap winding by means of an oil impregnated paper tape or an oil impregnated oil sheet is formed at the peripheral area of the solid insulators 13, 14 and the shield 25, and a solid state insulator 15 having a drum shape and a tapering toward the point at the lower part is formed. An oil gap 16 is formed within the shield 25 and the potential is allotted partially to the solid state insulator 14, therefore, the potential is low at this part. And as a result thereof, a high electric field is generated in the solid state insulators 13, 14. However, since the magnitude of a DC breakdown electric field is approximately 10 times as large as that of an insulating oil, the solid state insulators 13, 14 can be prevented from a dielectric breakdown, and the DC flashover voltage between the bushing 12 and the busing pocket tank can be improved.
JP15918479A 1979-12-10 1979-12-10 Terminal conductor connecting system Granted JPS5681909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15918479A JPS5681909A (en) 1979-12-10 1979-12-10 Terminal conductor connecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15918479A JPS5681909A (en) 1979-12-10 1979-12-10 Terminal conductor connecting system

Publications (2)

Publication Number Publication Date
JPS5681909A true JPS5681909A (en) 1981-07-04
JPS6259450B2 JPS6259450B2 (en) 1987-12-11

Family

ID=15688140

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15918479A Granted JPS5681909A (en) 1979-12-10 1979-12-10 Terminal conductor connecting system

Country Status (1)

Country Link
JP (1) JPS5681909A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58175838A (en) * 1981-11-26 1983-10-15 Toshiba Corp Manufacture of semiconductor device
JPS60193313A (en) * 1984-03-15 1985-10-01 Toshiba Corp Direct current electric apparatus filled with oil
JPS60193316A (en) * 1984-03-15 1985-10-01 Toshiba Corp Direct current oil filled electric apparatus
JPH0422359A (en) * 1990-05-16 1992-01-27 Zuikou:Kk Disposable diaper
EP0795877A2 (en) * 1996-03-14 1997-09-17 Hitachi, Ltd. DC bushing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58175838A (en) * 1981-11-26 1983-10-15 Toshiba Corp Manufacture of semiconductor device
JPS60193313A (en) * 1984-03-15 1985-10-01 Toshiba Corp Direct current electric apparatus filled with oil
JPS60193316A (en) * 1984-03-15 1985-10-01 Toshiba Corp Direct current oil filled electric apparatus
JPH0422359A (en) * 1990-05-16 1992-01-27 Zuikou:Kk Disposable diaper
EP0795877A2 (en) * 1996-03-14 1997-09-17 Hitachi, Ltd. DC bushing
EP0795877A3 (en) * 1996-03-14 1998-09-16 Hitachi, Ltd. DC bushing

Also Published As

Publication number Publication date
JPS6259450B2 (en) 1987-12-11

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