Lightning arrester

A lightning arrester and insulating cylinder technology, which is applied in the field of lightning arresters, can solve problems such as damage to the resistance sheet, achieve the effects of increasing friction, avoiding damage to the resistance sheet, and reducing the extrusion force

Pending Publication Date: 2022-03-11
HENAN PINGGAO ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a lightning arrester to solve the problem in the prior ar

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0038] Example 1 of the lightning arrester in the present invention:

[0039] Such as figure 1As shown, the arrester includes a housing 10, and an insulating barrel 20 is provided in the housing 10, and a plurality of resistance sheets 40 are sequentially stacked along the axial direction of the insulating cartridge 20, and one end of the insulating barrel 20 is provided with a resistor. The slice 40 is pressed into the spring 30, that is, the plurality of resistive pieces 40 can be fixed in the insulating barrel 20 by the elastic action of the spring 30. The plurality of resistive sheets 40 are divided into at least two resistor sheets disposed in the direction of the stack direction. In the present embodiment, the resistance sheet is provided with five sections, and the number of resistance sheets 40 in each of the resistive sheets is the same. A support pad 50 is provided between the adjacent two segments, and the support pad 50 is a conductor, and the support pad 50 is fitted ...

Example Embodiment

[0045] Example 2 of the arrester in the present invention:

[0046] In the present embodiment, the plurality of resistance sheets 40 are divided into five-stage resistive sheets arranged in sequential arrangement in the order direction. In the present embodiment, the plurality of resistive sheets 40 can be divided into two sections, three, four sections, six or more resistive fragment groups disposed in the direction of the stacking direction.

Example Embodiment

[0047] Example 3 of the arrester in the present invention:

[0048] The present embodiment differs from the first embodiment in that in Example 1, each of the vent holes 21 arranged three along the axial interval of the insulating barrel 20. In the present embodiment, each of the exhaust holes 21 can be all arranged in both the axial intervals of the insulating cartridge 20, four or more. Of course, the air hole 21 can also be a long hole capable of covering all resistors.

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PUM

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Abstract

The lightning arrester comprises a shell, an insulating cylinder is arranged in the shell, a plurality of resistor discs are stacked in the insulating cylinder, at least one end of the insulating cylinder is provided with springs matched with the resistor discs in a jacking mode, and the resistor discs are divided into at least two resistor disc sets which are sequentially arranged in the stacking direction. A supporting pad is arranged between any two adjacent resistor disc groups, the supporting pad is a conductor, the supporting pad is adaptively arranged in the insulating cylinder, and the supporting pad is supported on the cylinder wall of the insulating cylinder when the insulating cylinder is transversely arranged. Compared with the prior art, when the lightning arrester is horizontally placed and transported, the damage of the resistor disc caused by vibration generated during transportation can be avoided, and the damage of the lightning arrester caused by the damage of the resistor disc can be avoided.

Description

technical field [0001] The invention belongs to the technical field of lightning arresters, and in particular relates to a lightning arrester. Background technique [0002] The tank type surge arrester is a kind of overvoltage protection device commonly used in the power system. Its core component is the core body arranged in the tank type surge arrester shell. In order to ensure good contact between the resistors, the end of the insulating cylinder is provided with a spring that presses and fits the resistors. [0003] With the development of resistor technology, zinc oxide resistors have appeared 300V / mm, 400V / mm and other high-gradient resistors, which provide convenience for the single-column design of products. However, in the voltage field of 550kV and 800kV, the height of the core body can reach 1800mm and 2400mm respectively. Since the height of the core body is too high, the arrester needs to be transported horizontally when transporting the arrester. [0004] How...

Claims

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Application Information

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IPC IPC(8): H01C7/12
CPCH01C7/12
Inventor 赵新科孟庆喜廉丽娟吴超申磊刘瑞瑞李纪强岳光华田素君魏晓耀李阳王凯房鑫田超群
Owner HENAN PINGGAO ELECTRIC
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