Separating conductor for ultra-high voltage cable

A split conductor, ultra-high voltage technology, applied in the direction of conductors, insulated cables, power cables, etc., can solve the problems of lack of longitudinal water resistance and "big skin effect"

Inactive Publication Date: 2014-01-29
兴乐电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a novel ultra-high voltage segmented conductor with optimal design, wh

Method used

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  • Separating conductor for ultra-high voltage cable

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with exemplary embodiments and accompanying drawings, but the examples should not be construed as a specific limitation to the present invention.

[0011] see figure 1 , a split conductor of an extra-high voltage cable, comprising several split strands 1 and a single round wire 5, several round single wires 2 twisted into split strands 1, and the central gap after the combination of several split strands 1 is disposed of A single round wire 5 is coated with an insulating water-blocking paste 3 outside the single round wire 5, and the divided strands 1 are separated from the divided strands 1 by an insulating water-blocking tape 4. Each of the divided strands 1 Insulating water-blocking paste 3 is also coated between layers of circular single wires 2 .

[0012] see figure 1 , the split stock block 1 is five shares.

[0013] see figure 1 , the split strand 1 includes several layers of fan-shaped twis...

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Abstract

Provided is a separating conductor for an ultra-high voltage cable. The separating conductor for the ultra-high voltage cable comprises a plurality of separating strand blocks and a single circular guide line, a plurality of strands of circular single lines are twisted to be the separating strand blocks, the single circular guide line is arranged at the center interval after the separating strand blocks are combined, the single circular guide line is coated with insulation and water resistance paste, every two adjacent separating strand blocks are separated through insulation and water resistance tape, and the position between every two adjacent circular single lines in each separating strand block is also coated with insulation and water resistance paste. The separating conductor is mainly used for the ultra-high voltage cable, the separating effect is remarkable, the structure is stable, the excellent longitudinal water resistance performance is achieved, the alternating current resistance of the separating conductor is smaller than that of an ordinary separating conductor, the manufacturing process is simple, and production cost is low.

Description

technical field [0001] The invention relates to a conductor, in particular to an ultra-high voltage cable split conductor. Background technique [0002] Due to the influence of "skin effect" and "proximity effect" when the cable conductor transmits AC current, its AC resistance is greater than the DC resistance, resulting in increased power loss and heat generation, and reduced power transmission efficiency. This effect increases with the increase of the conductor cross-section. And more and more obvious. [0003] Due to the high voltage level and the strong inner surface field of the insulation, extra-high voltage cables can only use large cross-section conductors. In order to reduce its "skin effect", most of the industry uses crepe paper to divide the conductor into several mutually isolated conductors. The method of conductor surface area reduces the influence of "skin effect" on AC resistance. Due to the limitation of stranding equipment and process, most of the common...

Claims

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Application Information

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IPC IPC(8): H01B7/282H01B7/02H01B7/30H01B7/00H01B9/00
CPCY02A30/14
Inventor 虞文品陈小洋胡光祥刘文庭汤方建
Owner 兴乐电缆有限公司
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