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Field complete pollution level detection method for running composite insulator

A technology of composite insulators and detection methods, which can solve problems such as difficult and accurate measurement by removing certain components, weighing, sampling devices, etc.

Inactive Publication Date: 2011-05-11
SHANDONG ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the problem that it is difficult to accurately measure the complete pollution degree of the running composite insulator, and provides a detection method for the complete pollution degree of the running composite insulator. , not only can clean the surface of the insulator, but also ensure the accuracy of the measurement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Measurement of the complete pollution degree of a single shed at the site:

[0017] a. Equivalent salt density measurement

[0018] Take 100ml of pure water, use 80ml of pure water to clean the upper and lower surfaces of the shed of the composite insulator, and repeatedly scrub until there is no residual dirt on the surface of the insulator. Use the remaining 20ml of pure water to rinse the surface of the shed once again. Care should be taken not to lose scrubbing water, that is, there is no major change in the amount of water before and after sampling the dirt. Thoroughly stir the dirty liquid. For highly soluble filth, the stirring time is 5 to 10 minutes; for low soluble filth, generally need to stir for 30 to 40 minutes.

[0019] The equivalent salt density (ESDD) of the shed can be calculated by measuring the conductivity and temperature of the dirty liquid.

[0020] b. Ash density measurement

[0021] First weigh the filter paper (1.6μm level or less), then u...

Embodiment 2

[0025] On-site complete pollution degree measurement of the upper and lower surfaces of a single shed:

[0026] Take 100ml of pure water, use 80ml of pure water to clean the upper surface of the shed of the composite insulator, and repeatedly scrub until there is no residual dirt on the upper surface of the insulator. Use the remaining 20ml of pure water to rinse the upper surface of the cleaned umbrella skirt again. Care should be taken not to lose scrubbing water, that is, there is no major change in the amount of water before and after sampling the dirt. Thoroughly stir the dirty liquid. For highly soluble filth, the stirring time is 5 to 10 minutes; for low soluble filth, generally need to stir for 30 to 40 minutes. Measure the conductivity and temperature of sewage, and the measurement should be carried out in sewage.

[0027] The equivalent salt density (ESDD) of the upper surface of the shed can be calculated by measuring the conductivity and temperature of the dirty ...

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PUM

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Abstract

The invention relates to a field complete pollution level detection method for a running composite insulator. The method is simple; and by combining an inorganic solvent and an organic solvent and sampling twice, the surface of the insulator can be cleaned, and the measurement accuracy is ensured. The method comprises the following steps of: (1) scrubbing pollutants to a polluted liquid storage from the upper and lower surfaces of the insulator by adopting distilled water or deionized water, and then measuring the equivalent salt density of the insulator; (2) filtering the polluted liquid in the step 1, drying, weighing, and calculating washing ash density; (3) scrubbing insoluble and water-insoluble substances to the polluted liquid storage from the upper and lower surfaces of the washed insulator by adopting alcohol and using absorbent cotton, filtering the polluted liquid, drying, weighing, and calculating the alcohol cleaning ash density of the surface of the insulator; and (4) adding the washing ash density and the alcohol cleaning ash density to obtain complete ash density of the surface of the insulator.

Description

technical field [0001] The invention relates to a method for detecting the complete pollution degree of an operating composite insulator on site, which belongs to the category of operating detection of power transmission lines. Background technique [0002] The pollution accumulation on the surface of composite insulators has a very important impact on its overall performance. On the one hand, it determines the pollution flashover resistance of composite insulators, and on the other hand, it directly affects the performance of material aging phenomena such as tracking and electrical erosion Occurrence and development are one of the important indicators reflecting the performance of composite insulators. [0003] At present, there is no unified method and standard for on-site pollution degree detection of composite insulators at home and abroad, but only refers to the detection method of porcelain and glass insulators for on-site pollution degree measurement. [0004] Under ...

Claims

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Application Information

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IPC IPC(8): G01N5/04G01N1/10
Inventor 沈庆河慕世友姜一涛许喆
Owner SHANDONG ELECTRIC POWER RES INST
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