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Electrical insulator particularly for medium voltage and high voltage

An electrical insulator, insulator technology, applied in insulators, transformer/inductor parts, circuits, etc., can solve the problem of outputting the inside of the casing to the surrounding environment

Inactive Publication Date: 2007-10-10
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the retained area, some heat may be exported from the inside of the package case to the surrounding environment through the insulator

Method used

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  • Electrical insulator particularly for medium voltage and high voltage
  • Electrical insulator particularly for medium voltage and high voltage
  • Electrical insulator particularly for medium voltage and high voltage

Examples

Experimental program
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Embodiment Construction

[0025] FIG. 1 shows a section of a first design variant of an electrical insulator 1 . A first embodiment of the electrical insulator 1 has an essentially hollow-cylindrical structure. This first configuration of the electrical insulator 1 is embodied in the form of a plastic connection insulator. A layer of thermally insulating material 3 is arranged on the carrier tube 2 . The thermally insulating material 3 forms a thermally insulating region which extends around the carrier tube 2 on the peripheral surface side. The thermally insulating area is constructed as a through-body layer. As an outer surface, a protective layer 4 formed of silicon is provided on the heat insulating material 3 . This protective layer can, for example, be cast or sprayed on or be applied as a finished element on the carrier tube 2 covered with thermal insulation material 3 . The pores contained in the insulating material 3 can be filled, for example, with an insulating gas. This improves the di...

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PUM

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Abstract

An electrical insulator (1c) surrounds an inner space (3c). Electrically active elements (2c) can be arranged within the interior space (3c). To limit heat transfer between the inner space (3c) and the external environment of the electrical insulator (1c), the insulator (1c) has thermally insulating regions (7c, 8c, 9c).

Description

technical field [0001] The invention relates to an electrical insulator, in particular for neutralizing high voltages, which encloses an inner space. Background technique [0002] One such insulator is disclosed, for example, in US Pat. No. 6,147,333. The insulator there is a part of the high-voltage lead wire, which is used to electrically connect the conductor to pass through the metal package of the high-voltage power switch. A cut-off unit of the high-voltage power switch is arranged inside the metal package shell. The high-voltage leads each have an insulator which is provided with reinforcing ribs on its surface for extending the leakage path. The encapsulating casing is filled with an insulating gas present at elevated pressure. To avoid liquefaction of the insulating gas at low temperatures, the enclosure of the high-voltage line switch is equipped with an electric heating device. To keep heat loss as low as possible, the heating unit is combined with a thermally...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/54H01F27/04
CPCH01B17/54Y10S439/921Y10S439/934Y10S439/935
Inventor 卢茨-鲁迪格·贾尼科尼尔斯·沃宁
Owner SIEMENS AG