Nonlinear transmission wire breeze vibration protection device

A technology for transmission wires and protective devices, which is applied in the field of non-linear transmission wire wind vibration protection devices, can solve the problems of single energy consumption mode of anti-vibration devices, and achieve remarkable energy consumption effects, diverse energy consumption modes, and good economy

Active Publication Date: 2019-10-18
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of single energy consumption mode of common anti-vibration devices existing in the prior art, the present invention provides a non-linear power transmission wire breeze vibration protection device

Method used

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  • Nonlinear transmission wire breeze vibration protection device
  • Nonlinear transmission wire breeze vibration protection device
  • Nonlinear transmission wire breeze vibration protection device

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Embodiment Construction

[0040] In order to better understand the present invention, the content of the present invention will be further described below in conjunction with the accompanying drawings and examples.

[0041] 1. Anti-vibration principle

[0042] The non-linear electromagnetic damping type transmission wire breeze vibration protection device is characterized in that it can not only convert the kinetic energy of the vibrating wire into heat energy by relying on the friction between strands of steel strands like an ordinary anti-vibration hammer, so as to consume the energy input by the wind into the wire, but also pass through The electromagnetic damping device in each closed shell introduces nonlinear electromagnetic damping into the traditional damped spring vibrator system, forming a nonlinear energy slot, widening the vibration-absorbing frequency range and improving the vibration-damping effect.

[0043] The electromagnetic damping device is composed of a catheter of a certain specifi...

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Abstract

The invention provides a nonlinear transmission wire breeze vibration protection device; the nonlinear transmission wire breeze vibration protection device is hung on a power transmission wire and ischaracterized in that the device comprises a sealing device and an electromagnetic damping device (2); the sealing device is of a hollow closed structure and is wrapped outside the electromagnetic damping device (2), so that the interference of the inner magnetic field and the outer magnetic field is prevented; the electromagnetic damping device (2) comprises a horizontal guide pipe (7) and a plurality of crossed guide pipes, and a certain included angle is formed among the crossed guide pipes, and the crossed guide pipes are fixed on the horizontal guide pipe (7) separately. According to thedevice, nonlinear electromagnetic damping can be generated in the vibration of the transmission wire, energy consumption is increased, meanwhile, the applicable vibration range is wider, and vibrationof the transmission wire can be better reduced.

Description

technical field [0001] The invention relates to the field of conductors of overhead transmission lines, in particular to a wind-vibration protection device for non-linear transmission conductors. Background technique [0002] Breeze vibration is one of the important factors that threaten the safe operation of UHV transmission lines, and it is a problem that line design, construction and operation management departments must attach great importance to. Long-term breeze vibration can easily lead to damage or even failure of various components of the transmission line (ground wire, fittings, etc.), which seriously threatens the safe operation of the transmission line. [0003] Overhead line breeze vibration is a type of overhead line vibration mainly in the vertical direction caused by the wind. Its vibration frequency is 3-120Hz, and its amplitude is on the order of the diameter of the overhead line. The wind speed that causes this vibration is usually in the range of 0.5-10m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/14
CPCH02G7/14Y02E10/72
Inventor 司佳钧周立宪王景朝刘胜春刘彬赵彬齐翼孙娜展雪萍尹泉李轩灏李冬青刘龙张暕郎超
Owner CHINA ELECTRIC POWER RES INST
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