Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Composite insulator rod core ageing evaluation method

A composite insulator and evaluation method technology, applied in the field of composite insulator core aging evaluation, can solve the problems of insensitivity to early aging degree of composite insulator core, evaluation accuracy needs to be improved, and large data randomness, etc. The effect of improving the accuracy rate and clarifying the physical meaning

Inactive Publication Date: 2018-04-06
STATE GRID CORP OF CHINA +1
View PDF7 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can characterize the aging degree of the composite insulator core to a certain extent, but the equipment used is relatively complex, and the data is random, so the evaluation accuracy needs to be improved, and it is not sensitive to the early aging degree of the composite insulator core

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for evaluating the aging of composite insulator rod cores, including performing infrared spectrum analysis on composite insulator rod cores, extracting the height of the main absorption peak of composite insulators, and evaluating the aging degree of composite insulator rod cores by using a support vector machine; the infrared spectrum The analysis needs to make the composite insulator rod core into a test sample with a thickness of 1.5mm. The main absorption peaks include the hydroxyl group (-OH), the hydrocarbon group (-CH 3 ), carbonyl group (-C=O), the establishment of the support vector machine needs to be aimed at the evaluation model of the composite insulator rod core of a kind of fixed type at first, then utilize the model parameter to evaluate the composite insulator rod core sample of this model

[0021] The absorption peaks are all characteristic parameters of the infrared spectrum absorption peaks that change significantly during the aging process o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a composite insulator rod core ageing evaluation method especially suitable for 110KV-voltage-class insulators. The composite insulator rod core ageing evaluation method is characterized in that infrared spectroscopic analysis is conducted on a composite insulator rod core to extract the height of the main absorbing peak of a composite insulator, a support vector machine is utilized to evaluate the ageing degree of the composite insulator rod core; for the infrared spectroscopic analysis, the composite insulator rod core needs to be made into a test sample having the thickness of 1.5 mm, the main absorbing peak contains a hydroxy group (-OH), an alkyl group (-CH3) and a carbanyl group (-C=O), the establishment of the support vector machine needs an evaluation modelfor a fixed model of composite insulator rod cores, and then model parameters are utilized to evaluate the composite insulator rod cores of the model. The composite insulator rod core ageing evaluation method can conduct classification and state assessment on composite insulators in different ageing states and guide operating maintenance workers to maintain the composite insulators.

Description

technical field [0001] The invention relates to a composite insulator rod core aging evaluation method which is especially suitable for 110KV voltage level insulators. Background technique [0002] Composite insulators are one of the key equipment for the operation of power systems, and they are used for supporting protection and electrical insulation. Composite insulator rod core is mainly composed of epoxy resin, which belongs to a kind of thermosetting polymer oligomer organic matter, which has the characteristics of good mechanical properties, stable size, good electrical properties and stable chemical properties. However, since the composite insulator itself operates in a natural environment and is subjected to long-term temperature changes, ultraviolet rays, rain and snow, etc., aging linearity will inevitably occur. The aging of the composite insulator rod core will reduce its mechanical properties and cause brittle fracture accidents, which will pose a serious threa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G01N21/3563
CPCG01N21/3563G06F30/20G06F2119/04
Inventor 闫振华吴旭涛高博朱洪波李秀广丁培马飞越李奇超刘威峰
Owner STATE GRID CORP OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products