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Lightning arrester used for power transmission line

A technology for lightning protection devices and transmission lines, which is applied in the installation of cables, overvoltage arresters with spark gaps, and circuits. The effect of excellent combustion performance

Inactive Publication Date: 2020-02-21
LUOHE POWER SUPPLY OF HENAN ELECTRIC POWER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the purpose of the present invention is to provide a lightning arrester for power transmission lines to solve the technical problems of short service life and high maintenance cost of existing lightning arresters capable of extinguishing arcs

Method used

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  • Lightning arrester used for power transmission line
  • Lightning arrester used for power transmission line
  • Lightning arrester used for power transmission line

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Embodiment 1

[0027] Embodiment 1: A kind of lightning protection device for transmission line, see Figure 1-3 , including a lightning electrode 221 for electrically connecting the power line 90, a ground electrode 241 for electrically connecting the ground wire, a support insulator 23 for maintaining the distance between the lightning electrode 221 and the ground electrode 241, and the ground electrode 241 The lightning arrester 1 between the lightning induction electrode 221.

[0028] see figure 1 , the lightning guiding electrode 221 is fixed on the first busbar 22 and is electrically connected with the first busbar 22, and the first busbar 22 is electrically connected with the transmission line 90 through the soft wire 21 with a conductive clip.

[0029] see figure 1 , the ground electrode 241 is fixed on the second bus plate 24 and electrically connected with the second bus plate 24, and the second bus plate 24 is used for electrically connecting the ground wire.

[0030] see f...

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Abstract

The invention discloses a lightning arrester used for a power transmission line, and belongs to the power transmission line lightning protection technology field. The lightning arrester comprises a lightning leading electrode used for electrically connecting a power transmission line, a grounding electrode used for electrically connecting a grounding wire, a supporting insulator used for keepinga distance between the lightning leading electrode and the grounding electrode, and the lightning arrester arranged between the grounding electrode and the lightning leading electrode. The lightning arrester comprises a plurality of conductors which are arranged in an insulating support body at intervals, an arc extinguishing chamber with an arc blowing hole is arranged at a position, corresponding to a gap between the two adjacent conductors, of the insulating support body, and the arc blowing hole faces a back direction of the power transmission line and a line insulator is connected with the power transmission line. A voltage dividing capacitor and an arc extinguishing gate which are connected in series are formed through a pure air gap structure, repeated use can be achieved, rapid arcextinguishing can be realized, and a condition that high-temperature electric arcs blown from the arc blowing hole burn out the power transmission line can be avoided.

Description

technical field [0001] The invention relates to the technical field of lightning protection for power transmission lines, in particular to a lightning protection device for power transmission lines. Background technique [0002] Surge arrester is an electrical appliance used to protect electrical equipment from high transient overvoltage hazards and limit the freewheeling time and freewheeling amplitude. Existing arresters for transmission lines include zinc oxide arresters and series gap arresters, which can effectively protect insulators from arc damage and reduce the tripping rate of lines due to lightning strikes. However, the application of zinc oxide arresters in high-voltage lines has the following disadvantages: the zinc oxide resistors are prone to aging; the zinc oxide resistors will also be dampened after the seal fails. The production process of the series gap arrester is relatively complicated, and the large weight and volume make the installation of the device...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01T1/02H01T4/02H02G13/00
CPCH01T1/02H01T4/02H02G13/80
Inventor 李军姚凯黄敏李帅王永翔
Owner LUOHE POWER SUPPLY OF HENAN ELECTRIC POWER CORP
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