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Capacitive power transmission cable

A power transmission, capacitive technology, applied in the direction of power cables, insulated cables, cables, etc., can solve the problem that Litz wires and Milliken conductors are not suitable for use

Active Publication Date: 2021-02-05
エネルテクノスホールディングスリミテッド
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Litz wire and Milliken conductors are not suitable for use as Litz wire is good for low power and Milliken conductors are only lightly insulated

Method used

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  • Capacitive power transmission cable
  • Capacitive power transmission cable
  • Capacitive power transmission cable

Examples

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Embodiment Construction

[0083] Referring to the drawings, a power transmission cable 1 has copper strands 2 inside a sheath 3 . The jacket is a conventional jacket with an outer protective polymer layer 4 , a steel / copper wire protective ground layer 5 , a semiconductive layer 6 , an insulating layer 7 and a semiconductive layer 8 . Copper conductive strands are consistent with the invention.

[0084] Typically, in a cable with an operating voltage of 33 kV and a cross-section of 300 square meters, the lay diameter 12 of the copper strands 2 is typically 16 mm. The thickness of the insulating layer is typically 8 mm, resulting in a diameter 14 of 32 mm and a ratio of 2:1. A conductive strand has a typical capacitance between its set value of 120nF / m and a typical capacitance to ground of 0.3nF / m, so the capacitance to ground is two orders of magnitude smaller than the capacitance between two sets of strands.

[0085] In addition, the insulation thickness between strands or between layers of strands...

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Abstract

A capacitive power transmission cable (1) comprises at least two sets of conductive strands (2). The strands of the sets are distributed in a transverse cross- section of the cable, whereby the two sets are in capacitive relation to each other.

Description

technical field [0001] The present invention relates to capacitive power transmission cables. Background technique [0002] U.S. Patent No. 1,825,624 describes and claims: [0003] 1. In a power transmission system, an AC power supply, a receiving circuit, a transmission circuit for interconnecting the power supply and the receiving circuit, and a distributed capacitance inserted in series with the transmission circuit, the value of the distributed capacitance is substantially It is sufficient to cancel the inductive reactance of the transmission circuit, thereby increasing the power limit of the system. [0004] The abstract of US Patent No. 4,204,129 reads as follows: [0005] The present invention relates to power transmission and, more particularly, provides a power transmission system that reduces vector regulation, voltage drops and power losses by utilizing electrical conductors to include capacitance in series cables between generators and loads. That is, a capaci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/30H01B9/00H02J3/22
CPCH01B7/303H01B7/02H01B9/006H02J3/22H02J3/20
Inventor M·萨利希-穆哈丹G·奥布莱C·卢卡斯-克莱门茨D·昆内尔
Owner エネルテクノスホールディングスリミテッド