Cable with processed conducting wire core specially for winding

A technology of conductive wire core and cable, applied in the direction of transformer/inductor coil/winding/connection, insulating conductor/cable, insulating cable, etc., can solve problems such as large eddy current loss, and achieve the effect of reducing AC loss

Inactive Publication Date: 2004-06-23
TEBIAN ELECTRIC APP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the conventional cable is used in the winding of electrical or electromagnetic equipment or

Method used

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  • Cable with processed conducting wire core specially for winding
  • Cable with processed conducting wire core specially for winding
  • Cable with processed conducting wire core specially for winding

Examples

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[0009] In order to ensure the uniform potential, at least one of the untreated conductive cores (5) and the inner semi-conductive layer (3) of the conductive cores of the conductor (4) containing a thinner copper oxide insulating layer must be reliably electrically connected. Contact to ensure uniformity of potential.

[0010] For example, the treated stranded conductive wire core is treated again with the last drawing die (with the same diameter), and then the inner semi-conductive layer (3), the insulating layer (2), and the outer semi-conductive layer (3), the insulating layer (2), and the outer layer are formed on the conductor through a three-layer co-extrusion process. The semi-conductive layer (1), so that at least one untreated conductor (5) in the outermost layer of the stranded conductive core is in reliable electrical contact with the inner semi-conductive layer (3) to maintain a uniform potential.

[0011] The present invention uses a low-viscosity mixed solution of 1%...

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Abstract

The present invention relates to conductor for high voltage winding, and is especially one kind of cable with processed conducting wire core specially for winding. The twisted multi-core conductor is treated chemically, that is, the twisted multi-core conductor is soaked in low viscosity mixed solution containing sodium chlorite in 1-10 wt% and sodium hydroxide in 1-10 wt% to form thin insulating layer on the surface of each core conductor for mutual insulation. The formed copper oxide film will not be damaged in the subsequent twisting, pressing, drawing and other steps. The cable may be used in strong magnetic field and has the features of lowered AC loss, lowered eddy loss, saving in energy and high efficiency.

Description

technical field [0001] The present invention relates to cables for high-voltage windings intended for any electrical connection in electrical or electromagnetic equipment for power purposes, in particular, the present invention relates to cables for high-voltage windings comprising a plurality of multi-core metal strands, i. Handled cables dedicated to winding. Background technique [0002] As we all know, when the nominal cross section of the conductor reaches a certain level of operation, the eddy current loss will be very large, especially in the strong magnetic field environment; the multi-core stranded conductor with large cross section will also have skin effect and proximity effect. Larger AC loss. Conventional power transmission cable conductors do not need to be processed, and the multi-core conductors are directly stranded. Only ultra-high voltage power transmission cables use split conductors. However, if the conventional cable is used in the winding of electric...

Claims

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Application Information

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IPC IPC(8): H01B7/00H01B13/06H01F27/28
Inventor 杜新梅刘军刘坚栋
Owner TEBIAN ELECTRIC APP CO LTD
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