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a lightning arrester

A lightning arrester and hollow rod technology, applied in the field of lightning arresters, can solve the problems of insufficient heat dissipation and overheating damage of zinc oxide arresters, so as to improve the ability to deal with ice-covered flashover and lightning strike tripping faults, improve safety and reliability, and speed up heat dissipation. Effect

Active Publication Date: 2019-03-08
STATE GRID HUNAN ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a lightning arrester to solve the problem that the existing zinc oxide lightning arrester is prone to overheating damage due to insufficient heat dissipation

Method used

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Embodiment Construction

[0023] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "installation", "connected" and "connected" should be understood in a broad sense, unless otherwise clearly specified and limited. For example, they can be fixed or detachable. Connected or integrally connected; it can be a mechanical connection ...

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Abstract

The invention relates to the technical field of electrical engineering, and discloses a lightning arrester, which comprises an insulating hollow rod, a plurality of resistance sheets and metal pads, an air outlet is respectively arranged at the upper and lower ends of the insulating hollow rod, and the resistance sheets and metal pads The block is arranged in the circumferential direction of the insulating hollow rod, and a plurality of the resistance pieces are arranged along the axial direction of the insulating hollow rod, and the metal spacer is arranged between two adjacent resistance pieces, and the insulating hollow The surface of the rod in contact with the resistance sheet is provided with heat dissipation holes. The lightning arrester of the present invention forms the heat dissipation channel of the resistive sheet through the hollow insulating tube and the metal pad, which accelerates the heat dissipation speed of the arrester under high temperature conditions, thereby improving the ability of the arrester to deal with icing flashover and lightning trip faults, and greatly improving the safety of the device. Safety and reliability.

Description

Technical field [0001] The invention relates to the technical field of electrical engineering, in particular to a lightning arrester. Background technique [0002] Lightning strikes have been a serious threat to the reliable operation of power systems. In order to reduce the occurrence of lightning accidents, the power grid has adopted various lightning protection measures to protect the transmission lines. At present, zinc oxide arresters have become the best-performing and fastest-growing overvoltage protection devices in power systems. They have a wide range of applications. They can cut off power frequency freewheeling in time when lightning strikes, and play a role in the lightning protection of transmission lines. "The role of lightning current. Thermal stability is one of the most important characteristics of the zinc oxide arrester, which directly determines the life and reliability of the zinc oxide arrester, and is related to the long-term normal operation of the zinc ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01C1/08H01C7/12
CPCH01C1/08H01C7/12
Inventor 陆佳政吴伟蒋正龙胡建平谢鹏康王博文
Owner STATE GRID HUNAN ELECTRIC POWER