SE0002019D0 - Insulated electric cable - Google Patents

Insulated electric cable

Info

Publication number
SE0002019D0
SE0002019D0 SE0002019A SE0002019A SE0002019D0 SE 0002019 D0 SE0002019 D0 SE 0002019D0 SE 0002019 A SE0002019 A SE 0002019A SE 0002019 A SE0002019 A SE 0002019A SE 0002019 D0 SE0002019 D0 SE 0002019D0
Authority
SE
Sweden
Prior art keywords
viscosity
cable
liquid
impregnating material
exhibits
Prior art date
Application number
SE0002019A
Other languages
Swedish (sv)
Inventor
Per Nordberg
Ola Hansson
Hans Ekander
Mikael Bergkvist
Johan Felix
Original Assignee
Abb Ab
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 Abb Ab filed Critical Abb Ab
Priority to SE0002019A priority Critical patent/SE0002019D0/en
Publication of SE0002019D0 publication Critical patent/SE0002019D0/en
Priority to PCT/SE2001/001232 priority patent/WO2001093279A2/en
Priority to EP01937104A priority patent/EP1297538A2/en
Priority to AU2001262869A priority patent/AU2001262869A1/en
Priority to NO20025743A priority patent/NO20025743L/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/06—Gas-pressure cables; Oil-pressure cables; Cables for use in conduits under fluid pressure
    • H01B9/0688—Features relating to the dielectric of oil-pressure cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
    • H01B3/22—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils hydrocarbons

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Organic Insulating Materials (AREA)

Abstract

An electric cable of the mass-impregnated non-draining type impregnated with a dielectric impregnating material. The dielectric impregnating material is liquid and the viscosity of the liquid impregnating material exhibits a low temperature dependency that gives the cable pressure dynamic properties, whereby it acquires a capability to accommodate and compensate for thermal and pressure gradients building up in the cable under operation. The acquired pressure dynamic properties minimize the risks of unfilled voids and the like discontinuities developing. At the lower range of operating temperatures, the dielectric liquid has a viscosity suitably high to ensure the non-draining features while it allows the liquid to flow under the influence of shear stresses typically developing in the radial direction in the cable insulation of a DC cable during operation. Further, the impregnating material, within the first lower range of temperatures, exhibits a minimized weak temperature dependency of the viscosity. At a higher range of impregnating temperature, it has a significantly lower viscosity to ensure the impregnation result. It exhibits a significant change in the viscosity over the limited transition range of temperatures.
SE0002019A 2000-05-31 2000-05-31 Insulated electric cable SE0002019D0 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE0002019A SE0002019D0 (en) 2000-05-31 2000-05-31 Insulated electric cable
PCT/SE2001/001232 WO2001093279A2 (en) 2000-05-31 2001-05-31 Insulated electric cable
EP01937104A EP1297538A2 (en) 2000-05-31 2001-05-31 Insulated electric cable
AU2001262869A AU2001262869A1 (en) 2000-05-31 2001-05-31 Insulated electric cable
NO20025743A NO20025743L (en) 2000-05-31 2002-11-29 Insulated electrical cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0002019A SE0002019D0 (en) 2000-05-31 2000-05-31 Insulated electric cable

Publications (1)

Publication Number Publication Date
SE0002019D0 true SE0002019D0 (en) 2000-05-31

Family

ID=20279896

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0002019A SE0002019D0 (en) 2000-05-31 2000-05-31 Insulated electric cable

Country Status (5)

Country Link
EP (1) EP1297538A2 (en)
AU (1) AU2001262869A1 (en)
NO (1) NO20025743L (en)
SE (1) SE0002019D0 (en)
WO (1) WO2001093279A2 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259540A (en) * 1978-05-30 1981-03-31 Bell Telephone Laboratories, Incorporated Filled cables
GB2299343B (en) * 1995-03-17 1999-07-14 Campbell Dussek Ltd Hydrophobic compositions
NO952808L (en) * 1995-07-14 1997-01-15 Norsk Hydro As Electrically insulating oil-based composition and its use
SE9602647D0 (en) * 1996-07-04 1996-07-04 Abb Research Ltd Liquid comprising at least one hydrocarbon mixture having an oil character, cable and use of a liquid
JP3973722B2 (en) * 1997-01-23 2007-09-12 株式会社フジクラ DC oil immersion power cable
JP3693776B2 (en) * 1997-01-27 2005-09-07 株式会社フジクラ DC oil immersion power cable
JPH11111057A (en) * 1997-09-29 1999-04-23 Fujikura Ltd Insulation oil for connecting part of high viscosity oil impregnated cable
NO984234L (en) * 1998-09-14 2000-03-15 Alsthom Cge Alcatel Impregnation material for electric cables

Also Published As

Publication number Publication date
WO2001093279A2 (en) 2001-12-06
NO20025743D0 (en) 2002-11-29
EP1297538A2 (en) 2003-04-02
WO2001093279A3 (en) 2002-06-27
NO20025743L (en) 2003-01-22
AU2001262869A1 (en) 2001-12-11
WO2001093279A8 (en) 2003-01-09

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