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External insulation natural dirt accumulation testing method for high-voltage power transmission line

A technology of high-voltage transmission lines and testing methods, which is applied in specific gravity measurement, measurement device, electrical digital data processing and other directions to achieve the effect of facilitating promotion, reducing the consumption of human, material and financial resources, and simplifying the determination steps

Inactive Publication Date: 2011-12-28
泉州亿兴电力工程建设有限公司
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Problems solved by technology

[0006] Aiming at the deficiencies of the existing natural pollution test methods, the present invention aims to propose a new test method for natural pollution of the external insulation of high-voltage transmission lines, and efficiently realize the test of natural pollution of the external insulation of high-voltage transmission lines

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Embodiment Construction

[0026] The test of natural pollution on the external insulation of high-voltage transmission lines needs to consider many factors comprehensively, and can be implemented according to the following steps.

[0027] (1) On the Google Earth visual geographic information platform, the pollution test area is divided into grids, and the entire area is divided into several grids of 1km to 5km; Google Earth (Google Earth, GE) is a software developed by Google. Virtual globe software that lays out satellite photos, aerial photography, and GIS on a three-dimensional model of the Earth. Google Earth was launched to the world in 2005. Users can browse high-resolution satellite images around the world for free through a client software downloaded to their computers.

[0028] (2) Import the coordinates of the existing 110kV ~ 500kV transmission line towers in the pollution test area into the Google Earth visual geographic information platform, and use the black tower icons ( ) means 110kV ...

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Abstract

The invention discloses an external insulation natural direct accumulation testing method for a high-voltage power transmission line. The method comprises the following steps of: performing mesh division on a dirt test area on a Google Earth visible geographic information platform to divide the whole area into a plurality of meshes of 1 to 5 kilometers; then importing power transmission line tower coordinates in the dirt test area into the Google Earth visible geographic information platform; and importing the conventional dirt level distribution graph and terrain and physiognomy distribution graphs in the dirt test area into the Google Earth visible geographic information platform, determining a polygonal comprehensive attribute area, determining a natural direct accumulation test point of the high-voltage power transmission line, and calculating full-surface equivalent salt density and full-surface equivalent gray density. The method for selecting the external insulation natural direct accumulation test point of the high-voltage power transmission line has the advantages of low cost, simple and feasible operation and easy acceptance and mastering, and is convenient for popularization.

Description

technical field [0001] The invention relates to a test method for natural contamination of external insulation, in particular to a test method for natural contamination of external insulation of high-voltage transmission lines with a voltage level of 110kV and above. Background technique [0002] Antifouling work is usually based on pollution degree tests and pollution flashover mechanisms. Determine the pollution level through the pollution degree test, guide the external insulation design, operation and maintenance, etc.; through the pollution flashover mechanism research, formulate new anti-pollution measures to improve the anti-pollution ability. In recent years, with the continuous improvement of external insulation design level and operation and maintenance level, the widespread use of composite insulators and durable antifouling coatings (PRTV), the pollution flashover accidents of transmission lines in my country have been effectively contained. However, large-scale...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N9/00G01N9/36G01R31/08G06F17/30
Inventor 李恒真刘刚
Owner 泉州亿兴电力工程建设有限公司
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