Shandong area insulator dirtiness water-soluble negative ion ingredient testing method

Abstract

The invention discloses a Shandong area insulator dirtiness water-soluble negative ion ingredient testing method. According to the method, an efficient negative ion exchange separation column IonPac AS18 is used, and water-soluble negative ions in a dirtiness sample are accurately and fast tested under the KOH gradient leaching condition. The experiment result shows that the method has the advantages that the quantity definition is precise; the repeatability is good; the requirement on the practical dirtiness accurate evaluation in the Shandong area insulator can be met. The method is simple, convenient and stable; the pertinency is good in the linear range; the accuracy is high; the interference by other factors is small; the sample consumption is low; the practical value is high.

Description

technical field [0001] The invention belongs to the field of instrument analysis, in particular to a method for determining the water-soluble anion components of insulator pollution in Shandong area. Background technique [0002] Industrial pollution and air pollution are becoming more and more serious, resulting in more pollution on the surface of operating insulators, and increasing the risk of pollution flashover accidents on transmission lines. [0003] At present, the pollution characteristic parameters commonly used at home and abroad to characterize insulators mainly include: equivalent salt density, conductivity of pollution layer, leakage current and flashover field strength, etc. When evaluating the pollution of the external insulation of the power system, the method of measuring the equivalent salt deposit density (ESDD) is usually used to evaluate the degree of pollution. By measuring the conductivity of the dirty solution on the surface of the cleaning insulator...

AI Technical Summary

Problems solved by technology

[0005] Due to the influence of the specific local atmospheric environment and energy structure, the pollution of insulators in Shandong area shows a certain specificity in pollution components. The existing technology is limited by the accuracy and precision of the detection method itself, which affects the pollution components of insulators. Due to the accuracy of the final results, there is a big difference between the evaluation results and the actual pollution situation, which leads to the unsatisfactory actual effect of external insulation design and daily operation and maintenance.

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