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A line arrester

A technology of line arrester and discharge main body, which is applied in the direction of circuits, electrical components, corona discharge devices, etc., can solve the problems of single voltage level of line arrester and easy aging of the number of actions, and achieve the effect of blocking power frequency freewheeling

Active Publication Date: 2017-06-06
云南滇能智慧能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a line surge arrester, aiming to solve the problem of single voltage level and many times of action of the existing line surge arrester, which is easy to aging

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] figure 1 The structure of the line arrester provided by the present invention is shown. The line arrester includes a discharge body 10, an insulator 11, and auxiliary electrodes, ie auxiliary electrodes 12 and 13, arranged at the upper and lower ends of the insulator. The discharge body 10 is wound on the insulator 11, and the auxiliary electrode is used for connecting the high voltage line and grounding.

[0024] like figure 2 As shown, the discharge body 10 includes a metal electrode 101 and a base 102, and the material of the metal electrode 101 includes conductive materials such as iron, copper and aluminum; the base 102 is made of a high temperature resistant and insulating soft material. The metal electrodes 101 are fixedly arranged on the substrate 102 at equal intervals, and the equal intervals between the metal electrodes form the first discharge gaps 103, and a plurality of metal electrodes 101 will form a plurality of first discharge gaps 103, and the plura...

Embodiment 2

[0029] image 3 It shows the structure of the line arrester provided by the present invention. The difference from Embodiment 1 is that the discharge body 20 is spirally wound on the edge of the shed-shaped insulator, which has the advantage of increasing the length of the discharge body 20 and adapting to different voltages. grade.

[0030] In addition, the structure of the line arrester is different from the existing metal oxide arrester. The oxide resistance of the metal oxide arrester will be prone to aging due to too many lightning protection operations, and the resistance will also change due to aging. And this line arrester is made of metal, because its life will be longer.

Embodiment 3

[0032] Figure 4 It is the structure diagram of the use scene of the line arrester in this embodiment, such as Figure 4 As shown, the line arrester 31 is fixed on the iron tower 34 through the fixing device 311 on it and grounded. The line arrester 31 can be the line arrester structure in Embodiment 1 or Embodiment 2, but in this embodiment it also includes a discharge gap formed by auxiliary electrodes 361 and 362, which is fixedly supported by the insulator 32, or can be fixedly supported by other insulating objects . The other end of the auxiliary electrode 362 is connected to the high-voltage line 35, and the high-voltage line 35 is fixed on the iron tower 34 through the insulator 33. This structure is an extension of the line arrester in the above example, and there is an additional discharge during use. gap.

[0033] In summary, it can be seen that the line arrester can adapt to lines of different voltage levels, and effectively solve the problem of a single voltage ...

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Abstract

The invention relates to the technical field of electric power facilities, and provides a line lightning arrester. The lightning arrester comprises a discharge body, an insulator and an auxiliary electrode, wherein the discharge body comprises metal electrodes and a base. The line lightning arrester can be adaptive with lines of different voltage levels, so that the problem of a single voltage level of the existing line lightning arrester is effectively solved; meanwhile, compared with the existing metal oxide lightning arrester having the problems of too many times of lightning-protection actions and high probabilities of aging, damage and causing flashover, the problems can be avoided by the line lightning arrester provided by the invention; in addition, according to the lightning arrester, the multiple metal electrodes are fixedly arranged at the equal intervals to form multiple first discharge gaps, so that power frequency follow current can be effectively blocked.

Description

technical field [0001] The invention relates to the technical field of power facilities, in particular to a line lightning arrester. Background technique [0002] The function of the lightning arrester is to protect various electrical equipment in the power system from faults caused by lightning strikes. The line arrester is to limit the lightning overvoltage of the line, improve the lightning protection level of the line, and reduce the tripping rate of the system due to lightning strike faults. , and a specially designed new lightning arrester suspended and installed on the transmission tower. There are many types of line arresters, among which the zinc oxide type is the most common and widely used. However, the surge arresters currently on the market have problems of single voltage level, vulnerability and flashover, that is, they can only be installed on the corresponding voltage level power system. In addition, the number of lightning protection operations is too many,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01T19/04
CPCH01T19/04
Inventor 庄严杨志一
Owner 云南滇能智慧能源有限公司