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Parallel bundled overhead conductor

A technology for overhead wires and wires, applied to power cables, electrical components, circuits, etc., can solve the problems of large line voltage loss, low safety factor, time-consuming and laborious, etc., to reduce the cost of wires, improve the safety factor of operation, and identify the phase sequence clear effect

Inactive Publication Date: 2014-06-25
SHANGHAI QIFAN CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing twisted bundled wires have a large voltage loss, especially when subjected to wind pressure, frost and other tensions, the safety factor is low, and the cost is high, time-consuming and labor-intensive

Method used

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Examples

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Embodiment Construction

[0013] Such as figure 1 Shown: a parallel bundled overhead wire, including two wires 1 with insulation 2, the wires are aluminum alloy wires, all the wires are arranged side by side, and the wires are connected by connecting ribs 3; as figure 2 with image 3 As shown, the number of the wires is four, and the four wires are arranged in a rectangular shape or a star shape; the insulation is polyvinyl chloride insulation, cross-linked polyethylene insulation or weather-resistant polyethylene insulation.

[0014] In the three-phase four-wire power supply system, the aluminum alloy parallel bundled conductors can minimize the unbalance of the three-phase load of the distribution transformer, reduce the neutral wire current, and thereby reduce the resistance loss. Due to the compact symmetrical split structure, the inductance of the wire is reduced, the dielectric constant between the wires is increased, the capacitance is increased, the circuit reactance is greatly reduced, and t...

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Abstract

The invention relates to a parallel bundled overhead conductor which includes at least two wires with insulators. The wires are aluminum alloy wires and all the wires are arrayed in parallel and the wires are connected through connection ribs. The number of the wires is four. The four wires are arrayed into a rectangular shape or a star-shape. The insulators are polyvinyl chloride layers, crosslinked polyethylene insulators or weather resistance polyethylene insulators. The parallel bundled overhead conductor is capable of reducing the inductance of the wires and increasing inter-wire dielectric constants and increasing the capacitance so that the reactance of a circuit is reduced significantly and an objective of capacitance expansion and loss reduction is realized finally.

Description

technical field [0001] The invention relates to an overhead cable, in particular to parallel bundled overhead wires. Background technique [0002] The existing twisted bundled conductor line has a large voltage loss, especially when it is subjected to tension such as wind pressure and frost, the safety factor is low, the cost is high, and it is time-consuming and labor-intensive. Contents of the invention [0003] The present invention aims to overcome the defects of the prior art and provide a parallel bundled overhead wire, which can reduce the inductance of the wire, increase the dielectric constant between the wires, increase the capacitance, greatly reduce the circuit reactance, and finally achieve the purpose of capacity expansion and loss reduction . [0004] In order to solve the problems of the technologies described above, the present invention is achieved in that: [0005] A parallel bundled overhead wire, comprising at least two insulated wires, characterized...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/00
Inventor 邵文贞高俊威丁永国
Owner SHANGHAI QIFAN CABLE CO LTD
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