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A Life Evaluation Method for Potty Insulators Based on Artificial Accelerated Aging Test

A pot-type insulator, accelerated aging technology, used in measuring devices, instruments, measuring electricity and other directions, can solve the problems of in-depth insulation aging assessment and life prediction, etc.

Active Publication Date: 2018-05-04
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

Although there are more and more studies on basin insulators with the wide application of GIS, they are all limited to the study of a single problem, and have not gone deep into the insulation aging assessment and life prediction.
In terms of artificial accelerated aging test, at present, IEC and national standards do not have an aging test method for the electrothermal comprehensive factors of solid dielectrics, but a relatively systematic standard has been formed for the aging test method of composite insulators, which can be used for reference

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  • A Life Evaluation Method for Potty Insulators Based on Artificial Accelerated Aging Test
  • A Life Evaluation Method for Potty Insulators Based on Artificial Accelerated Aging Test
  • A Life Evaluation Method for Potty Insulators Based on Artificial Accelerated Aging Test

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

[0032] In one embodiment, the present invention discloses a method for evaluating the life of a pot insulator based on an artificial accelerated aging test, the method comprising the following steps:

[0033] S100. Put two groups of samples equipped with electrodes into the multi-factor aging laboratory; set the test temperature and voltage, and start the artificial accelerated aging test;

[0034] S200, take out one sample from each of the two groups of samples at intervals of aging time t, use the same number to measure the insulation resistivity, and generate an insulation characteristic curve based on the aging time and the percentage relationship of the insulation resistivity;

[0035] S300, keeping the test temperature constant, taking multiple test voltage values, repeating steps S100 and S200, and obtaining multiple sets of insulation chara...

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Abstract

The invention proposes a basin-type insulator life evaluation method based on artificial accelerated aging test. According to the characteristics of basin type insulators being closed, high temperature and long-term high voltage, the method uses a multi-factor laboratory to design an artificial accelerated aging test platform of electric and thermal comprehensive factors, and measures the characteristic quantities of multiple epoxy resin samples under different aging degrees. On this basis, analyze the experimental data, use the existing empirical formula, adopt the curve fitting technology and the Weibull probability distribution method, study the inner relationship between each aging factor, electrical test quantity and aging life, and will have an impact on the environment. The test data of epoxy resin material is connected with the aging evaluation of pot insulators, and a set of life evaluation methods for pot insulators is proposed.

Description

technical field [0001] The invention belongs to the technical field of solid dielectric aging life prediction, in particular to a basin-type insulator life evaluation method based on an artificial accelerated aging test. Background technique [0002] Basin insulator is the main component of GIS. It has two functions: one is to connect the high-potential parts and the ground potential shell, which plays the role of support and insulation to the ground; the other is to connect the moving contacts and static contacts between the fractures. The corresponding components play the role of connection and fracture insulation. With the wide application of GIS, the operational reliability of GIS equipment has aroused widespread concern at home and abroad, and GIS equipment failures have occurred frequently in recent years. According to operating experience, among all GIS failure cases, basin-type insulators and disconnectors have the highest proportion of failures, and the failure rat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
Inventor 夏小飞黄金剑黄辉敏芦宇峰王飞风
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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