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Multi-fission transmission lead torsional vibration swing-preventing device

A technology of power transmission wires and anti-dancing devices, which is applied in the field of mechanical gravity self-balancing devices, can solve problems such as falling towers, large dancing ranges, and broken wires, and achieves the effects of convenient installation, low cost, and simple structure

Inactive Publication Date: 2010-05-05
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the conductor galloping is not suppressed at the initial stage, the galloping range will become larger and larger, causing flashover and tripping in the slightest, and causing major accidents such as mixed lines, short circuits, disconnections, and tower collapses of transmission lines, resulting in large-scale power outages , causing huge losses to the national economy

Method used

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  • Multi-fission transmission lead torsional vibration swing-preventing device
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  • Multi-fission transmission lead torsional vibration swing-preventing device

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Embodiment Construction

[0013] figure 1 figure 2 As shown, the present invention is composed of wire clamp 1, (clamp) swing shaft 2 (including bearing), annular spacer bar 3, (arc round tube) T-shaped swing bar 4, low-temperature antifreeze liquid 5 and counterweight ball 6 .

[0014] More than two wire clips 1 used to fix the power transmission wire 7 are evenly arranged on the annular spacer 3: the swing shaft 2 is rotatably arranged on the ring spacer 3 through the bearing, and the wire clip 1 is fixed on the swing shaft 2 Above; the T-shaped swing rod 4 is fixed on the bottom of the annular spacer, and the arc-shaped tube of the T-shaped swing rod is filled with a ball 6 and low-temperature antifreeze 5 (that is, the outer ring of the bearing is fixed on the annular spacer, and the swing shaft is fixed on the on the bearing inner ring). Corresponding to double-split, triple-split, four-split, six-split, or eight-split wires, the wire clips are two, three, four, six, or eight, respectively. G...

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Abstract

The invention relates to a multi-fission transmission lead torsional vibration swing-preventing device. More than two lead clamps for fixing transmission leads are evenly arranged on an annular spacer rod; a swing shaft can be rotatably arranged on the annular spacer rod through a bearing and the lead clamps are fixed on the swing shaft; and T-shaped swing rod is fixed at the bottom of the annular spacer rod and a balance weight ball and low-temperature anti-freezing fluid are held in an arc circular tube of the T-shaped swing rod. The torsion of overhead conductors can be prevented from rotating by self balance of round ball gravity; in addition, the multi-fission transmission lead torsional vibration swing-preventing device has the characteristics of simple structure, convenient installation and use and no need of frequent maintenance.

Description

technical field [0001] The invention relates to an anti-galling device for an overhead power transmission line, in particular to a mechanical gravity self-balancing device for preventing the galloping of a power transmission wire. Background technique [0002] Conductor galloping is an important factor that threatens the safe and stable operation of overhead transmission lines. my country is one of the countries with the most serious galloping disasters, and galloping will cause huge damage to transmission lines. The reason for galloping is that the overhead high-voltage transmission wire is covered with ice. Since the wire is covered with ice to form an asymmetric circular cross section, under the action of a certain wind force, the wire will be induced to produce a low-frequency, large-amplitude self-excited vibration, which will cause the wire to gallop. If the conductor galloping is not suppressed at the initial stage, the galloping range will become larger and larger, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/14
Inventor 张宏雁
Owner STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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