Determination method for filthy components of high-voltage insulator

A high-voltage insulator and component determination technology, which is applied in the direction of material analysis, measurement device, and material separation using wave/particle radiation, can solve problems such as complex components, and achieve the effect of preventing pollution flashover accidents

Active Publication Date: 2014-03-26
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, due to the complex pollution components of high-voltage insulators, there is

Method used

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  • Determination method for filthy components of high-voltage insulator
  • Determination method for filthy components of high-voltage insulator
  • Determination method for filthy components of high-voltage insulator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The pollution of high voltage insulators in this example was taken from near a chemical plant

[0039] A method for determining the pollution components of high-voltage insulators, the specific steps are as follows (refer to figure 1 ):

[0040] A. Sample pretreatment:

[0041] Take the dirty sample of the high voltage insulator and dry it in an oven to obtain sample 1;

[0042] B. Qualitative and semi-quantitative analysis:

[0043] B1, utilize X-ray photoelectron spectrometer to test sample 1, determine element type and relative content in sample 1; The process step and parameter of described X-ray photoelectron spectrometer test are to get a small amount of sample 1 and grind into powder, Spread evenly on the sample stage. K α As the excitation source, the target voltage and target current are 15kV and 10mA respectively, and the vacuum chamber pressure is less than 4×10 -6 Pa, the analyzer transmission energy is 50eV, the measurement step is 0.1eV, the sputteri...

Embodiment 2

[0055] The pollution of high voltage insulators in this example is taken from the vicinity of a power plant

[0056] A method for determining the pollution components of high-voltage insulators, the specific steps are as follows:

[0057] A. Sample pretreatment:

[0058] Take the dirty sample of the high voltage insulator and dry it in an oven to obtain sample 1;

[0059] B. Qualitative and semi-quantitative analysis:

[0060] B1, utilize X-ray photoelectron spectrometer to test sample 1, determine element type and relative content in sample 1; The process step and parameter of described X-ray photoelectron spectrometer test are to get a small amount of sample 1 and grind into powder, Spread evenly on the sample stage. K α As the excitation source, the target voltage and target current are 15kV and 10mA respectively, and the vacuum chamber pressure is less than 4×10 -6 Pa, the analyzer transmission energy is 50eV, the measurement step is 0.1eV, the sputtering angle is 45°...

Embodiment 3

[0071] In this example, the pollution of high voltage insulators was taken from the vicinity of a steel factory

[0072] A method for determining the pollution components of high-voltage insulators, the specific steps are as follows (refer to figure 2 ):

[0073] A. Sample pretreatment:

[0074] Take the dirty sample of the high voltage insulator and dry it in an oven to obtain sample 1;

[0075] B. Qualitative and semi-quantitative analysis:

[0076] B1, utilize X-ray photoelectron spectrometer to test sample 1, determine element type and relative content in sample 1; The process step and parameter of described X-ray photoelectron spectrometer test are to get a small amount of sample 1 and grind into powder, Spread evenly on the sample stage. K α As the excitation source, the target voltage and target current are 15kV and 10mA respectively, and the vacuum chamber pressure is less than 4×10 -6 Pa, the analyzer transmission energy is 50eV, the measurement step is 0.1eV, ...

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Abstract

The invention discloses a determination method for filthy components of a high-voltage insulator. The determination method comprises the specific steps: A, pre-treating a sample; B, qualitatively and semi-quantitatively analyzing, namely determining varieties and corresponding contents of elements in the sample by using an X-ray photoelectron spectroscopy, and determining chemical group varieties in the sample by using a fourier transform infrared spectrometer; and C, quantitatively analyzing, namely carrying out an ICP (Inductively Coupled Plasma) test to determine the content of cations in the sample and carrying out an IC (Integrated Circuit) test to determine the content of anions in the sample. According to the determination method for the filthy components of the high-voltage insulator, the filthy components of the high-voltage insulator can be qualitatively and quantitatively analyzed by organically combining an X-ray photoelectron spectroscopy (XPS) test, a fourier transform infrared spectrometer (FTIR) test, the ICP test and an IC test result; the filthy components of the high-voltage insulator can be accurately determined so as to be good for preventing a pollution flashover accident.

Description

technical field [0001] The invention relates to a method for component determination, in particular to a method for determining the contamination component of a high-voltage insulator. Background technique [0002] According to statistics, the number of insulation flashover accidents caused by pollution of high-voltage insulators currently ranks second in the total number of accidents in the power grid, second only to lightning accidents, but the losses caused by pollution flashover accidents are 9-9% of lightning accidents 10 times. [0003] Due to different pollution sources, the chemical composition of pollution deposited on the surface of insulators by various particulate matter in the atmosphere also varies greatly due to different atmospheric environments and pollution sources. At present, most of our countries use the equivalent salt density and equivalent gray density to evaluate the degree of dirt on the surface of electric porcelain. However, in practical applica...

Claims

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Application Information

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IPC IPC(8): G01N23/227G01N21/25G01N21/73G01N30/02
Inventor 陆国俊王勇黄青丹宋浩永王劲黄慧红张德智赵崇智刘静徐诗颖吴培伟李聃裴利强吕慧媛李助亚练穆森
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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