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Variable-gap lightning arrester and lightning protection device

An air-termination and variable-gap technology, applied in corona discharge devices, connecting contact materials, electrical components, etc., can solve the problems of lightning protection failure, charge corona phenomenon, etc., and achieve a simple structure and high lightning reliability Effect

Active Publication Date: 2021-02-26
GUANGDONG POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, the accumulation of charges on the air receptor will cause corona phenomenon, which will lead to the failure of lightning protection

Method used

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  • Variable-gap lightning arrester and lightning protection device
  • Variable-gap lightning arrester and lightning protection device
  • Variable-gap lightning arrester and lightning protection device

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Embodiment Construction

[0022] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0023] Such as Figure 1 to Figure 3 As shown, a variable-gap air-termination device 1 provided by the present invention is used to be installed on the top of the tower 2 of the power transmission line. The variable-gap lightning-termination device 1 is electrically connected to the grounding grid. The flasher 1 introduces lightning into the grounding grid to prevent the tower 2 from being struck by lightning and ensure the safety of power transmission. The variable gap air receptor 1 includes a lightning conductor 10, a first conductor 11 and a second conductor 12, and the lightning conductor 10, the first conductor 11 and the second conductor 12 are a...

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Abstract

The invention relates to a variable-gap lightning arrester and a lightning protection device. The variable-gap lightning arrester comprises a lightning leading pole, a first conductor and a second conductor, the first conductor is used for being electrically connected with a grounding grid, the second conductor is elastically arranged on the first conductor, the lightning leading pole penetrates through the second conductor and is in insulation connection with the first conductor, a plurality of blades are annularly arranged on the periphery of the second conductor, in the first state, the second conductor and the lightning leading pole are spaced, and in the second state, the blades can drive the second conductor to abut against the lightning leading pole under the action of wind power. The second conductor is elastically connected with the first conductor, the lightning leading pole is spaced from the second conductor, the second conductor is provided with the blades, and the bladesenable the second conductor to abut against the lightning leading pole under the action of wind power, so that an electric path is achieved. The structure can avoid the problem that the lightning leading pole cannot conduct lightning smoothly due to corona, can avoid corona by blowing away a large amount of charges on the lightning leading pole through wind, and has the characteristics of simple structure and high lightning leading reliability.

Description

technical field [0001] The invention relates to the technical field of electric power equipment, in particular to a variable-gap air-termination device and a lightning protection device comprising the variable-gap air-termination device. Background technique [0002] The lightning receptor is an important part of the lightning protection device. The lightning receptor is a metal object used to directly receive lightning strikes. The lightning receptor is set on the top of the object to be protected and connected to the grounding grid through a down conductor. When a lightning strike occurs, the lightning is introduced into the ground through the air receptor to realize the lightning protection of the protected object. However, in practical applications, the accumulation of electric charges on the air receptor will cause corona phenomenon, which will lead to the failure of lightning protection. Contents of the invention [0003] The object of the present invention is to pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01T19/04H01R4/64H01R4/66
CPCH01T19/04H01R4/64H01R4/66
Inventor 张焕强余克光
Owner GUANGDONG POWER GRID CO LTD
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