TREA

Electrical bushing

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Information

  • Patent Application
  • 20070181324
  • Publication Number
    20070181324
  • Date Filed
    November 13, 2006
    18 years ago
  • Date Published
    August 09, 2007
    17 years ago
Information
Abstract
An electrical bushing (1) for connecting a superconducting device to a device located at ambient temperature, the bushing (1) having an electrical conductor (9) and an insulating layer (10) surrounding the electrical conductor (9). An interlayer (15) is provided between the electrical conductor (9) and the insulating layer (10) and makes it possible for the electrical conductor (9) to slide in the insulating layer (10) within a temperature range of from 70 kelvin to the ambient temperature. A field control layer (11) is also applied to the insulating layer (10).
Description

BRIEF DESCRIPTION OF THE DRAWINGS


FIG. 1 shows an exemplary embodiment of an electrical bushing, in accordance with one embodiment of the present invention; and



FIG. 2 shows an enlarged illustration of the conductor, in accordance with one embodiment of the present invention.


Claims
  • 1. Electrical bushing for connecting a superconducting device to a device located at ambient temperature, the bushing comprising: an electrical conductor; andan insulating layer surrounding the electrical conductor, wherein an interlayer is provided between the electrical conductor and the insulating layer and makes it possible for the electrical conductor to slide in the insulating layer within a temperature range of from 70 kelvin to the ambient temperature, and in that a field control layer is provided on the insulating layer.
  • 2. Electrical bushing according to claim 1, wherein the material of the interlayer is liquid or viscous in the mentioned temperature range.
  • 3. Electrical bushing according to claim 2, wherein the interlayer is made from polytetrafluoroethylene.
  • 4. Electrical bushing according to claim 1, wherein the interlayer is taping made from a material which is resistant to high voltages.
  • 5. Electrical bushing according to claim 1, wherein the interlayer is made from graphite.
  • 6. Electrical bushing according to claim 1, wherein the interlayer further comprises a tape coated with graphite.
  • 7. Electrical bushing according to claim 1, wherein the interlayer further comprises a mica or fibreglass tape.
Priority Claims (1)
Number Date Country Kind
06290159.0 Jan 2006 EP regional