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Series Gap Arrester

A technology of series gaps and lightning arresters, which is applied in the field of lightning arresters, can solve the problems of large leakage current and poor arc extinguishing effect, and achieve the effects of small leakage current, poor capacitance and reduced arc energy

Active Publication Date: 2022-07-01
NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The arc extinguishing effect of this type of series gap arrester is poor, and the leakage current is large under the condition of the lightning protection effect of the same specification.

Method used

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Embodiment Construction

[0026] Below in conjunction with the accompanying drawings, the present invention will be described in the form of embodiments to assist those skilled in the art to understand and implement the present invention. Unless otherwise specified, the following embodiments and technical terms therein should not be understood without departing from the background of technical knowledge in the technical field.

[0027] In the present invention, the two conductors at both ends of the gas discharge channel are the A conductors and the B conductors, respectively.

[0028] The formula for the potential difference between the two poles of a parallel plate capacitor

[0029]

[0030] In the formula, U AB is the potential difference loaded between the two plates of the parallel plate capacitor, q is the amount of charge stored in the parallel plate capacitor C, d is the distance between the two plates of the parallel plate capacitor, ε 0 is the relative permittivity, and S is the area of...

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Abstract

A series gap arrester, comprising an insulator and a plurality of conductor groups arranged in the gap along the main axis direction of the insulator, the adjacent two groups of conductor groups arranged in the gap in the main axis direction of the insulator are the first conductor group, the second conductor group respectively. Two conductor groups, the first conductor group includes A first conductors, the second conductor group includes B second conductors, A+B≥3, the first conductor group The lengths of all the gas discharge channels formed by a conductor and the second conductors of the second conductor group are equal. It can improve the arc extinguishing effect of the series gap arrester and reduce its leakage current under the condition of taking into account the lightning protection effect.

Description

technical field [0001] The invention relates to the field of arresters, in particular to a series gap arrester. Background technique [0002] A surge arrester is an electrical appliance used to protect electrical equipment from high transient overvoltage hazards and to limit the freewheeling time and often the freewheeling amplitude. Existing arresters for transmission lines include zinc oxide arresters, series gap arresters, and the like. [0003] Patent document CN110829183A describes a lightning protection device for power transmission lines, including a lightning electrode for electrically connecting the transmission line, a ground electrode for electrically connecting the ground wire, and a lightning protection device for maintaining the distance between the lightning electrode and the ground electrode. The support insulator and the arrester arranged between the ground electrode and the lightning electrode, the arrester includes a plurality of conductors arranged in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01T4/16H01T4/02H01T1/08H01C7/12H01C7/112
CPCH01T4/16H01T4/02H01T1/08H01C7/12H01C7/112
Inventor 罗道军先真王文明张亚涛周建军姚楠
Owner NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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