EP1528576A3 - Electrical insulator - Google Patents

Electrical insulator Download PDF

Info

Publication number
EP1528576A3
EP1528576A3 EP04025657A EP04025657A EP1528576A3 EP 1528576 A3 EP1528576 A3 EP 1528576A3 EP 04025657 A EP04025657 A EP 04025657A EP 04025657 A EP04025657 A EP 04025657A EP 1528576 A3 EP1528576 A3 EP 1528576A3
Authority
EP
European Patent Office
Prior art keywords
electrical insulator
shed
reduced
diameter
airflow
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.)
Withdrawn
Application number
EP04025657A
Other languages
German (de)
French (fr)
Other versions
EP1528576A2 (en
Inventor
Kiyoshi Morita
Kazuyuki Sugimura
Takahiro Chono
Morishige Hattori
Katsufumi Hashimoto
Takeshi Kurita
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
Publication of EP1528576A2 publication Critical patent/EP1528576A2/en
Publication of EP1528576A3 publication Critical patent/EP1528576A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/14—Supporting insulators
    • H01B17/18—Supporting insulators for very heavy conductors, e.g. bus-bars, rails

Landscapes

  • Insulators (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

An electrical insulator (1) includes a shed (31) having a diameter larger than the shed diameter of the electrical insulator (1) in an upper portion of the electrical insulator (1), and the shed (31) has an elliptical or oval cross section. Accordingly, the airflow in the vertical direction of the electrical insulator (1) is reduced, and therefore the noise caused by pressure fluctuation on a shed of the electrical insulator (1) due to vortices generated at positions downstream of a structural component, such as a collector shoe, placed on top of the electrical insulator (1) is reduced.
EP04025657A 2003-10-28 2004-10-28 Electrical insulator Withdrawn EP1528576A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003367240 2003-10-28
JP2003367240A JP4332718B2 (en) 2003-10-28 2003-10-28 Insulator

Publications (2)

Publication Number Publication Date
EP1528576A2 EP1528576A2 (en) 2005-05-04
EP1528576A3 true EP1528576A3 (en) 2006-02-01

Family

ID=34420122

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04025657A Withdrawn EP1528576A3 (en) 2003-10-28 2004-10-28 Electrical insulator

Country Status (2)

Country Link
EP (1) EP1528576A3 (en)
JP (1) JP4332718B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104269235A (en) * 2014-10-17 2015-01-07 王玉华 Opposite angular edge pillar anti-pollution-flashover insulator special for electric locomotives and motor train units
CN104590030A (en) * 2014-12-12 2015-05-06 株洲鼎顺新材料科技有限公司 Bus brace and pantograph brace porcelain insulator on roof of electric locomotive
CN107946005A (en) * 2017-05-27 2018-04-20 国网新疆电力公司经济技术研究院 A kind of wind resistance composite insulator applied to strong wind area
DE102019121932A1 (en) * 2019-08-14 2021-02-18 Bombardier Transportation Gmbh Insulator for a rail vehicle and pantograph
CN114551013B (en) * 2022-02-24 2024-06-18 南京理工大学 Resistance-reducing noise-reducing insulator and high-speed train pantograph with same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR594268A (en) * 1924-03-05 1925-09-09 Porcelainfabrikken Norden As Electrical insulator for high voltage
FR1246691A (en) * 1959-03-20 1960-11-18 Siemens Ag Advanced isolator
FR2133473A1 (en) * 1971-04-14 1972-12-01 Gratzmuller J Power line insulator - formed from assembly of moulded synthetic resin insulator elements
EP0264684A1 (en) * 1986-10-02 1988-04-27 Sediver, Societe Europeenne D'isolateurs En Verre Et Composite Composite insulator with an insulating covering moulded onto it

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR594268A (en) * 1924-03-05 1925-09-09 Porcelainfabrikken Norden As Electrical insulator for high voltage
FR1246691A (en) * 1959-03-20 1960-11-18 Siemens Ag Advanced isolator
FR2133473A1 (en) * 1971-04-14 1972-12-01 Gratzmuller J Power line insulator - formed from assembly of moulded synthetic resin insulator elements
EP0264684A1 (en) * 1986-10-02 1988-04-27 Sediver, Societe Europeenne D'isolateurs En Verre Et Composite Composite insulator with an insulating covering moulded onto it

Also Published As

Publication number Publication date
EP1528576A2 (en) 2005-05-04
JP2005135602A (en) 2005-05-26
JP4332718B2 (en) 2009-09-16

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