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Lightning arrester

A lightning arrester and hollow rod technology, which is applied in the field of lightning arresters, can solve problems such as overheating damage and insufficient heat dissipation of zinc oxide arresters, so as to improve safety and reliability, improve the ability to deal with icing flashover and lightning trip faults, and speed up heat dissipation. Effect

Active Publication Date: 2018-05-18
STATE GRID HUNAN ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
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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 purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

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

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Abstract

The invention relates to the technical field of electrical engineering, and discloses a lightning arrester. The lightning arrester comprises an insulating hollow rod, multiple resistor discs and metalcushion blocks, air outlets are formed in the upper end and the lower end of the insulating hollow rod respectively, the resistor discs and the metal cushion blocks are arranged in the circumferential direction of the insulating hollow rod, the multiple resistor discs are arranged in the axial direction of the insulating hollow rod, the metal cushion blocks are arranged between every two adjacentresistor discs, and heat emission holes are formed in the surface where the insulating hollow rod makes contact with the resistor discs. According to the lightning arrester, a heat dissipation channel of the resistor discs is formed through a hollow insulating tube and the metal cushion blocks, the heat dissipation speed of the lightning arrester in the high temperature condition is increased, and then the capacity of the lightning arrester for dealing with icing flashover and lightning tripping fault is improved, and the safety and reliability of the device are greatly improved.

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 always been a serious threat to the reliable operation of the power system. 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, the zinc oxide arrester has become the best performance and fastest-growing overvoltage protection device in the power system. Its application range is extremely wide. "The effect of lightning current. Thermal stability is one of the most important characteristics of zinc oxide arresters, which directly determines the life and reliability of zinc oxide arresters, and is related to whether zinc oxide arresters can operate normally for a long time. [0003] The actual operation experience shows that: due to the long-term exposure to power frequency v...

Claims

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Application Information

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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
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