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A device for covering surface of melting wires, poles and insulators in transmission line with ice

An overhead transmission line, with load technology, applied in the installation of cables, circuits, insulators, etc., can solve problems such as damage to power transmission and transformation equipment, and achieve the effect of saving energy, reducing usage, and low voltage levels

Inactive Publication Date: 2008-10-15
郑卫东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of strong winds, the "resonance" effect produced by the dancing lines is enough to pull down the steel towers weighing dozens of tons, causing secondary damage to power transmission and transformation equipment

Method used

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  • A device for covering surface of melting wires, poles and insulators in transmission line with ice
  • A device for covering surface of melting wires, poles and insulators in transmission line with ice
  • A device for covering surface of melting wires, poles and insulators in transmission line with ice

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Embodiment Construction

[0079] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0080] According to the public papers, the example of melting ice of the line, the cross section of the wire is 120mm 2 , the melting ice heating power is 20 kW / km, and the melting ice thickness is 95-150 mm. Links to this source are provided in the Background section of this document.

[0081] According to the netizen's calculation of the commonly used aluminum torus of 400 square millimeters and steel core wires of 35 square millimeters for high-voltage wires, the heating power for melting ice is 1320 kW / km, and the thickness of melting ice is 50-100 mm. Links to this source are provided in the Background section of this document.

[0082] The span of high-voltage transmission line towers is more than 1000 meters, which is super long. The span is generally between 300 and 500 meters, and the span is usually 400 meters.

[0083] Since the pr...

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Abstract

The invention relates to a device for thawing the surface ice coating of a line, a tower and an insulator with load for an overhead transmission line, which can thaw ice on the line without stopping supplying electricity and is characterized in that a current transformer is adopted and electric power used for thawing the surface ice coating of line with load is obtained from the overhead transmission line with load; according to concrete line conditions, the parameters of current, time and space position of thawing is set span by span (the distance between two towers that set up the transmission line). The device has the beneficial effects of ice thawing operation without stopping transmission and, equipment needed with light weight, low price and small power.

Description

technical field [0001] The invention relates to a device for melting the surface of overhead power transmission lines (wires and lightning protection lines) with load (power supply, power transmission, online) to cover ice on the surface of lines, towers, and insulators, especially a device for melting power supply lines, towers, and insulators Ice-melting devices for surface ice, icing, icing, icing, and icing can melt ice online without stopping the power supply. Background technique [0002] From January to February 2008, large-scale snow disasters and freezing rain disasters occurred in southern China. As a result, high-voltage and high-power power supply lines in extensive areas were severely covered with ice on the surface of the lines, and a large number of overhead power supply lines were broken. In the field of power supply, it is commonly known as foundation, tower base, foundation, and iron tower) and a large number of collapses (fallen towers). [0003] Icing on...

Claims

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Application Information

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IPC IPC(8): H02G7/16H01B17/54H01B17/52
Inventor 郑卫东利莉郑贯天郑琼
Owner 郑卫东
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