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Insulators for providing electrical insulation of conductors and electrical equipment incorporating such insulators

A technology for insulators and electrical equipment, applied in insulators, lead-in/punch-through insulators, circuits, etc., can solve problems such as time-consuming and troublesome capacitor cores, reduce production time, and promote customization.

Active Publication Date: 2018-05-25
HITACHI ENERGY SWITZERLAND AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production of such capacitor cells is usually cumbersome and time-consuming

Method used

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  • Insulators for providing electrical insulation of conductors and electrical equipment incorporating such insulators
  • Insulators for providing electrical insulation of conductors and electrical equipment incorporating such insulators
  • Insulators for providing electrical insulation of conductors and electrical equipment incorporating such insulators

Examples

Experimental program
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Embodiment Construction

[0027] figure 1 A prior art bushing 100 is schematically illustrated comprising an elongated insulating housing 105 through which a conductor 110 extends. Electrical terminals are provided at each end of the conductor 110 for connecting the conductor 110 to an electrical system or device. The end of the sleeve is called the connection end 113 . figure 1 The bushing 100 also includes a capacitor core 115 .

[0028] figure 1 The capacitive core 115 includes a number of conductive foils 120 separated by a dielectric spacer medium 123 . Dielectric spacer 123 is typically made of an insulating material such as oil or resin impregnated paper.

[0029] figure 1 The bushing 100 further includes a flange 125 attached to the insulator 105 . Flange 125 can be used to connect bushing 100 to plane 130 through which conductor 110 is to extend. exist figure 1 In the bushing 100 , the plane 130 is connected to the outermost conductive foil 120 via a connection 135 . Plane 130 can be ...

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Abstract

The present invention relates to an insulation body (400) for providing electrical insulation of a conductor in an electrical device. The insulation body (400) comprises at least two modules (200[1] - 200[n]), each module having a hole through which the conductor (110) may extend. The at least two modules are arranged so that the holes of the at least two modules are aligned to form a passage for the conductor, and adjacent modules are arranged firmly against each other. Each module comprises at least one insulationg material, and the relative permittivity of the insulation body varies in the axial and / or the radial direction of the insulation body.

Description

technical field [0001] The present invention relates to the field of power transmission technology, and in particular to insulators for providing electrical insulation of conductors in electrical equipment such as bushings, instrument transformers or cable terminations. Background technique [0002] Electrical bushings are used to carry current across a plane that is at a different potential than the current path. The bushing is designed to electrically insulate the conductors located inside the bushing from such planes. The plane through which the conductor extends is often referred to as a ground plane, even though the plane does not need to be grounded, eg, in some applications the plane is at a potential further from ground potential than the conductor. This ground plane can be, for example, a transformer box or a wall. [0003] In order to obtain a smooth potential distribution between the conductor and the ground plane, the bushing usually includes an insulator surro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B17/42H01B17/26
CPCH01B17/26H01B17/42
Inventor R·赫德伦德N·拉维斯森H·马蒂尼J·施伊斯林格P·斯登瓦尔
Owner HITACHI ENERGY SWITZERLAND AG