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Lightning pillar insulator with built-in discharge gap

A pillar insulator, discharge gap technology, applied in the direction of supporting insulators, insulators, circuits, etc., can solve the problems of affecting the discharge action, malfunction, and inability to occur discharge action, and achieve the effect of ensuring reliability and reducing space occupation.

Inactive Publication Date: 2017-11-17
苏州灵亿易电子科技有限公司
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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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  • Lightning pillar insulator with built-in discharge gap
  • Lightning pillar insulator with built-in discharge gap
  • Lightning pillar insulator with built-in discharge gap

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (Example 1, lightning protection post insulator)

[0021] 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.

[0022] Figure 1 to Figure 3 One specific embodiment of the invention is shown. The invention provides a lightning protection pillar insulator with a built-in discharge gap, such as Figure 1 to Figure 3 As shown, it includes an insulator 1, an upper discharge rod 2 and a lower discharge member 3;

[0023] The inside of the insulator is provided with a sealed cavity 4; the upper discharge rod is provided with an upper discharge end 21 located on the upper part of the sealed cavity and an electrical terminal 22 protruding upward from the sealed cavity; the lower discharge part in this embodiment is a rod-shaped conductive rod 31, The conductive rod 31 is provided with a lower discharge end 311 l...

Embodiment 2）

[0030] Figure 4 A second embodiment of the invention is shown.

[0031] This embodiment is basically the same as Embodiment 1, the difference is that the structure of the lower discharge part in this embodiment is different from that in Embodiment 1; see Figure 4 As shown, the lower discharge member 3 in this embodiment includes a conductive rod 31, a mandrel 32, an insulating connector 33 for insulatingly connecting the conductive rod and the mandrel, an insulating tube 34, a conductive slide tube 35, a conductive coil 36, and The mandrel provides the return spring 37, the conductive installation base 38 and the conductive installation pillar 39 of the restoring elastic force; The installation end 312 of the sealed cavity; the upper discharge end of the upper discharge rod and the lower discharge end of the lower discharge part leave a discharge gap.

[0032]The conductive rod is located directly above the mandrel, the conductive rod and the mandrel are arranged concentri...

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PUM

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Abstract

The invention discloses a lightning pillar insulator with a built-in discharge gap. The lightning pillar insulator comprises an insulator, an upper discharge rod and a lower discharge part; the top end of the insulator is provided with a clamping mechanism for clamping a cable; a sealed cavity is defined in the insulator; the upper discharge rod is provided with an upper discharge end located at the upper part of the sealed cavity and an electricity connection end extending upwards from the sealed cavity; the electricity connection end of the upper discharge rod is electrically connected with the clamping mechanism; the lower discharge part is provided with a lower discharge end located in the sealed cavity and a mounting end protruding downwardly from the sealed cavity; and a discharge gap is left between the upper discharge end and the lower discharge end. According to the lightning pillar insulator with the built-in discharge gap of the invention, the discharge gap is defined in the insulator, and therefore, the interference of external environmental factors can be effectively reduced, the lightning protection performance of the lightning pillar insulator can be improved, so that the lightning protection performance can be stable and reliable.

Description

technical field [0001] The invention belongs to the technical field of lightning strike protection for electric overhead insulated lines, and in particular relates to a lightning protection post insulator with a built-in discharge gap. 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 overhe...

Claims

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Application Information

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IPC IPC(8): H01B17/14H01B17/46
CPCH01B17/14H01B17/46
Inventor 卢征
Owner 苏州灵亿易电子科技有限公司