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Device for preventing transmission line from waving by using eddy-current heating

A transmission wire, eddy current heating technology, applied in the direction of mechanical vibration damping device, permanent magnet, etc., can solve the problems of loose anti-vibration hammer, fracture of interphase spacer, unsatisfactory anti-dancing effect, etc., and achieve the effect of avoiding damage

Active Publication Date: 2012-11-21
STATE GRID HEBEI ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to prevent the galloping of the wires, a series of measures are currently taken on the transmission line, such as adding interphase spacers and anti-vibration hammers. , new circular galloping, loose anti-vibration hammer, displacement of anti-vibration hammer and unsatisfactory anti-dance effect, etc.

Method used

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  • Device for preventing transmission line from waving by using eddy-current heating
  • Device for preventing transmission line from waving by using eddy-current heating
  • Device for preventing transmission line from waving by using eddy-current heating

Examples

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Embodiment Construction

[0015] as attached figure 1 As shown, the present invention includes a sleeve 4 fixedly connected to the lifting lug I1, a pressing plate 8 arranged at one end of the sleeve 4, a climbing skirt 6 arranged around the sleeve 4, a coil 5 arranged on the inner wall of the sleeve 4, The pull rod 9 fixedly connected with the lifting ear II 10 and the permanent magnet 3 fixedly connected with the pull rod 9 are set in the sleeve 4 .

[0016] Lifting lug I 1 and lifting lug II 10 are respectively fixedly connected to different wires. Sleeve 4, climbing skirt 6 and tie rod 9 are usually made of non-metallic materials. The function of climbing skirt 6 is to increase creepage distance and prevent surface discharge; The cavity 2 formed by the sleeve 4 and the pressure plate 9 is provided with a damping liquid, and the pull rod 9 set in the sleeve 4 is set with a spring 7. The function of the damping liquid is to increase resistance and heat dissipation, which can prevent the coil 5 from o...

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Abstract

The invention relates to a protection tool used for an electrical protection transmission line, in particular to a device for preventing the transmission line from waving by using eddy-current heating. The device comprises a sleeve, a pressing plate, a creepage extender, a coil, a pull rod and a permanent magnet, wherein the sleeve is fixedly connected with a lug I; the pressing plate is arrangedat one end of the sleeve; the creepage extender is arranged around the sleeve; the coil is arranged on the inner wall of the sleeve; the pull rod is sleeved in the sleeve and is fixedly connected with the lug I; and the permanent magnet is fixedly connected with the pull rod. The coil cuts magnetic lines of force in the permanent magnet to generate eddy-current therein so as to generate heat; andthe generated eddy-current hinders the relative movement of the lines connected with the device so as to consume the kinetic energy of the lines.

Description

technical field [0001] The invention relates to a protection tool used for electric power protection transmission lines, in particular to a device capable of preventing the dancing of power transmission wires and protecting iron towers from being damaged. Background technique [0002] Under certain meteorological conditions, the wires that transmit power will continue to act on the vibration system formed by the wires and the iron tower, and the wires will dance. The dancing of the wires is a kind of energy. The iron tower, the iron tower and the wire constitute a vibration system. The vibration system forms resonance and forced vibration under the continuous action of wind energy, forming the galloping of the transmission line, and the galloping will become larger and larger as time goes on. On the one hand, the galloping energy destroys the structure of the iron tower, on the other hand, it will form a short circuit discharge between phases or towers due to galloping. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G7/14H01F7/02
Inventor 冯砚厅
Owner STATE GRID HEBEI ELECTRIC POWER RES INST
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