A Representation Method of Regional Pollution Degree of Transmission Lines

Abstract

The invention discloses a method for characterizing the pollution degree of transmission line area, which can more comprehensively consider the influence of environmental factors on the pollution and flashover characteristics of the insulator surface; The impact of the effect, and the result of its action combined with the original surface salt density into an equivalent salt density, which is used as the basis for the division of pollution levels. The division method of the present invention considers the more and more electrical conductivity foggy weather in the near future as an environmental feature, and arranges the insulation configuration in this way, which can effectively reduce flashover accidents caused by sudden bad weather, and strengthen the safe and stable operation of the power grid.

Description

technical field [0001] The invention relates to a method for characterizing the pollution level of a transmission line area, which belongs to the technical field of high-voltage external insulation. Background technique [0002] In addition to the two basic forms of pollution, the conventional solid slow pollution accumulation and the highly conductive liquid pollution rapid accumulation, in inland areas, due to human activities (such as straw burning, setting off firecrackers, etc.) or natural factors (mountain fires, The high conductivity and high humidity weather conditions caused by acid rain, etc., superimpose the rapid fouling process on the basis of solid fouling, which is more likely to cause pollution flashover. Under such circumstances, if the results of the conventional slow fouling process and cleaning fog are still used, large errors will be caused, resulting in the inability to take preventive measures against possible flashovers in time, threatening the safety...

AI Technical Summary

Problems solved by technology

[0002] In addition to the two basic pollution accumulation forms of conventional solid slow pollution and highly conductive liquid pollution fast pollution, in inland areas, due to human activities (such as straw burning, firecrackers, etc.) or natural factors (mountain fires, Acid rain, etc.) caused by high conductivity, high humidity weather conditions, on the basis of solid fouling superimposed rapid fouling process, more likely to cause pollution flashover

Under such circumstances, if the results of the conventional slow fouling process and the effect of cleaning fog are still used, large errors will be caused, resulting in failure to take preventive measures for possible flashovers in time, threatening the safety and stable operation of the power grid

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