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Aging failure evaluation method for running composite insulator

A technology for composite insulators and failure evaluation, applied in measuring devices, instruments, environment/reliability testing, etc., can solve problems such as one-sidedness and insufficient discrimination, and achieve the effect of eliminating subjectivity, reducing one-sidedness, and ensuring sensitivity

Inactive Publication Date: 2020-05-08
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the purpose of this application is to provide a method for evaluating the aging failure of operational composite insulators, which can solve the problems of insufficient discrimination and one-sidedness existing in existing evaluation techniques

Method used

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  • Aging failure evaluation method for running composite insulator
  • Aging failure evaluation method for running composite insulator
  • Aging failure evaluation method for running composite insulator

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Embodiment 1

[0063] The above is the first embodiment of a method for evaluating the aging failure of an operating composite insulator provided by the embodiment of this application. The following is the second embodiment of an evaluation method for the aging failure of an operating composite insulator provided by the embodiment of this application. For details, please refer to figure 1 , Figure 3 to Figure 5 ;

[0064] A method for evaluating the aging failure of an operating composite insulator, comprising the steps of:

[0065] Step 10, obtain n microscopic test parameters belonging to different parameter indexes respectively, wherein n is an integer greater than three; it should be noted that this step is the same as step 10 of the above-mentioned embodiment one, and specific details will not be repeated.

[0066] Step 20 , normalize the multiple test values ​​obtained according to n microscopic test parameters, so that one microscopic test parameter corresponds to one normalized val...

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Abstract

The invention discloses an aging failure evaluation method for a running composite insulator. The method comprises the following steps: acquiring n microcosmic test parameters belonging to different parameter indexes respectively; normalizing a plurality of test values obtained by testing according to the n microcosmic test parameters to obtain a normalized value; obtaining n axis segments with the same length as a preset numerical value to construct an axis segment model; enabling the n normalized numerical values to be equivalent to line segments taking the original point as a starting pointon the n axis segments, wherein the normalized numerical values are smaller than a preset numerical value; respectively calculating a first n-polygon area formed by connecting the end points of the line segments corresponding to the n normalization values and a second n-polygon area formed by connecting the end points of the n axis segments; quantizing the area of a first n-polygon and the area of a second n-polygon to obtain a quantized value; and obtaining an evaluation result under the quantized value according to a preset evaluation model. The problems of insufficient distinction degree and one-sidedness in the prior art can be solved.

Description

technical field [0001] This application relates to the technical field of insulator aging failure, and in particular to a method for evaluating the aging failure of operating composite insulators. Background technique [0002] Composite insulators are important electrical components in transmission lines, which play the role of connecting towers and transmission lines and electrical insulation. The composite insulator mainly consists of three parts: the outer insulating sheath, the fittings at both ends and the inner insulating epoxy glass fiber mandrel. Among them, the fittings at both ends play the role of connection; the inner insulating epoxy glass fiber core rod plays the role of providing mechanical tension or support; the outer insulating umbrella sleeve plays the role of isolation, that is, to isolate the mandrel from the external environment and prevent its aging. Therefore, the aging failure of the outer insulating sheath of the composite insulator means that the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R31/12
CPCG01R31/003G01R31/1245
Inventor 汪政彭向阳魏俊涛李志峰黄振
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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