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Lower discharge piece used for gap lightning protection

A technology for electrical parts and gaps, applied in the field of lower discharge parts for gap lightning protection, can solve the problems of exposed arc rod discharge points, no discharge action, affecting discharge action, etc., so as to increase the discharge gap and improve the lightning strike protection performance. , the effect of improving stability

Inactive Publication Date: 2018-01-09
卢永星
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, this kind of lightning protection post insulator still has the following disadvantages: the discharge point of the arc striker and the lower steel foot is exposed, and it is easy to accumulate dirt, which affects the discharge action
In addition, the discharge gap between the arc striker and the lower steel foot is fixed, but the external weather changes frequently, which may easily lead to misoperation or discharge failure.

Method used

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  • Lower discharge piece used for gap lightning protection
  • Lower discharge piece used for gap lightning protection

Examples

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Embodiment 1

[0017] (Example 1, lower discharge parts)

[0018] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0019] figure 1 One specific embodiment of the invention is shown. The present invention provides a lower discharge part 3 for gap lightning protection, such as figure 1 As shown, it includes a lower discharge rod 31, a mandrel 32, an insulating connector 33 for insulatingly connecting the lower discharge rod and the mandrel, an insulating slide tube 34, a soft connection 35, a conductive coil 36, and a return spring 37 that provides return elastic force for the mandrel. , Conductive installation base 38 and conductive installation pillar 39; In this embodiment, the top of the lower discharge rod 31 is used as the lower discharge end 311.

[0020] The lower discharge rod is located directly above the mandrel...

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PUM

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Abstract

The invention discloses a lower discharge piece used for gap lightning protection. The lower discharge piece comprises an insulating sliding pipe, a conducting coil which is arranged on the insulatingsliding pipe in a sleeving manner and is used for generating electromagnetic force, a lower discharge rod arranged at a lower discharge end, a flexible connector for electrically connecting the lowerdischarge rod and the top of the conducting coil, a core rod arranged in the insulating sliding pipe in a sliding manner, a reset spring for providing reset elastic force for the core rod, a conducting mounting base electrically connected with the bottom end of the conducting coil and a conducting mounting rack which stretches out an insulator downwards and is used for being mounted on a cross arm; and the lower discharge rod is fixedly connected with the core rod. The lower discharge piece is beneficial for turning off power-flow current.

Description

technical field [0001] The invention belongs to the technical field of lightning strike protection for electric power overhead lines, and in particular relates to a lower discharge part for gap lightning protection. Background technique [0002] After the overhead line is struck by lightning, power frequency freewheeling will occur. The so-called power frequency freewheeling means that after the overhead line is struck by lightning, a lightning arc will be generated between the overhead line and the metal cross arm. The survival time of this lightning arc is very short, but it forms The conductive channel between the overhead line and the cross-arm is opened, so that the power supply of the overhead line is short-circuited to the ground (cross-arm). In terms of freewheeling, the greater the grounding resistance of the crossarm or pole, the smaller the power frequency freewheeling, and the easier it is to cut off the current. [0003] Compared with overhead bare wires, overh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/14H01B17/46
Inventor 卢永星
Owner 卢永星
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