Deicing power transmission line of multiple conducting wires

A technology of transmission lines and wire currents, which is applied to the installation of electrical components and cables, and the space arrangement/configuration of cables, etc., which can solve the problems of increased cost and inconvenience

Inactive Publication Date: 2009-09-09
邹家福 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is clean, thorough, and convenient for deicing, but it is not very convenient for the multiple wires (multiple identical live wires) that have been installed now.
Because it needs to separate and insulate a wire, and then twist them together, which will increase the cost economically.

Method used

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  • Deicing power transmission line of multiple conducting wires

Examples

Experimental program
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Effect test

Embodiment Construction

[0005] specific implementation plan

[0006] Under normal circumstances, as shown in the figure above, the switch gates of each wire of the left and right wire groups are closed and energized. Each conductor collectively carries the entire current capacity of the wire group. The wires do not appear to heat up. Once the wires are frozen thick and need to be deiced, as shown in the figure below, only one wire switch in the left wire group is closed and energized, and the rest of the wires are all switched off and not energized. Then, only the wire on the left carries the full current flow of the wire group. As a result, the current in this wire increases and heats up, which melts the ice and de-ices it. Switching the switch gates of each line group and each section can de-ice the entire line.

[0007] For newly installed lines, generally 2 to 4 lines are line groups.

[0008] Each wire of each wire group can be twisted into a strand by multiple wires (including steel core),...

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PUM

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Abstract

The invention relates to a deicing power transmission line of multiple conducting wires. Multiple (more than two but less than four) power transmission lines arranged in parallel in the same direction form a line set, wherein the lines are mutually separated and arranged in zones. Conducting wires at two ends of each line set of each zone are connected with a breaker respectively, and the breakers at two ends of each zone are communicated. Under normal condition, all breakers at two ends of each line set of each zone are switched on and powered, and the conducting wires do not heat. Once the conducting wires are iced heavily, when a section of the conducting wire needs to deice, one line in the breaker at any end of the line set is reserved, and the rest lines are switched off and not powered. Thus, only one conducting wire is switched on and powered to bear overall electric quantity of the line set, the current is increased and the line heats, and then the line melts ice so as to deice. In the same way, when the breaker is transformed, any conducting wire can melt the ice. When the ice is melted, the normal condition recovers.

Description

Technical field [0001] The invention relates to a power transmission line, in particular to a deicing power transmission line with multiple wires. Background technique [0002] There is no convenient deicing method and equipment for the existing transmission lines. In the event of persistent snow and freezing rain, the wires will freeze and increase in weight, pulling down the iron towers, pulling down the poles, and breaking the wires, causing large-scale power outages and heavy losses. There is a technology called "de-icing transmission line", patent application number 200820062242.3, which divides each transmission line into two parts, one part is more, called attached line, and the other part is less, called special line, and the special line is covered with an insulating layer . Then twist the two into a wire. Usually, both the dedicated line and the attached line are energized, and the wire does not heat up. When deicing, switch off the attached line switch, and on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/20H02G7/16
Inventor 邹家福邹家华
Owner 邹家福
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