Test system for measuring insulator surface field intensity distribution

A technology of surface field strength and test system, which is applied in the direction of electrostatic field measurement, etc., can solve problems such as inability to accurately measure the surface electric field of insulators, and achieve the effect of eliminating distortion and reliable reference

Inactive Publication Date: 2020-06-05
XI AN JIAOTONG UNIV +2
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the fact that the above-mentioned existing insulator surface field strength measurement method can no longer meet the current situation of accurately measuring the insulator surface electric field, the present invention proposes a test system that does not need an electric field probe and can measure the insulator surface field strength distribution

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Test system for measuring insulator surface field intensity distribution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The insulator is made of transparent epoxy resin, glass, transparent rubber or other insulator materials mixed with electroluminescent powder, placed in a high-pressure gas chamber or oil tank, and pressurized through a high-voltage bushing. When the voltage is high, the surface field strength of the insulator is stronger than the luminescence threshold field strength of the electroluminescent powder (about 1kV / mm), and the insulator will emit light. The luminescence of the insulator is photographed by the camera, and the surface field strength of the insulator is deduced from the image. distributed.

[0014] In the present invention, the insulator mixed with electroluminescent powder is placed in a high-pressure gas chamber or an oil tank, and the power frequency high voltage test transformer is used to pressurize the insulator through a protection resistor and a high voltage bushing, and the voltage is changed by a voltage regulator of the power frequency high voltage ...

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

No PUM Login to view more

Abstract

The invention discloses a test system for measuring insulator surface field intensity distribution. Transparent epoxy resin, glass, transparent rubber or other insulator materials doped with electroluminescent powder are used for manufacturing the insulator. A voltage regulator and a power frequency high-voltage test transformer are used for pressurizing theinsulator in a high-voltage air chamberor an oil tank through a protective resistor and a high-voltage sleeve; a ground electrode and a high-voltage electrode are arranged in thehigh-voltage air chamber or theoil tank according to the actual working condition of the insulator, after high voltage is applied, the insulator emits light, a camera is used for shooting the light emitting phenomenon of the insulator through an observation window of the high-voltage air chamber or the oil tank, and therefore distribution of the field intensity on the surface of the insulator is reversely deduced. The system does not need to arrange an electric field probe near the insulator, eliminates the distortion of the electric field probe to the surface field intensity of the insulator, and can better reflect the real condition of the surface field intensity distribution of the insulator.

Description

technical field [0001] The invention relates to an insulator test system, in particular to a test system for measuring the field intensity distribution on the surface of an insulator. Background technique [0002] An insulator is a device that is installed between different potentials and can withstand voltage and mechanical stress. It is widely used in the power grid and is one of the indispensable and important components in the power grid. In order to improve the electrical performance of insulators and reduce the surface field strength of insulators, simulation methods are usually used to optimize the structure of insulators, but the correctness of simulation and the effectiveness of structural optimization are difficult to verify experimentally. At present, the effectiveness of structural optimization is usually judged by measuring the flashover voltage of the insulator, and the validity of the simulation is judged by using the electric field probe to measure the field ...

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
IPC IPC(8): G01R29/14
CPCG01R29/14
Inventor 汲胜昌贾云飞高璐杨欣颐李志兵刘伟刘子恩
Owner XI AN JIAOTONG UNIV
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
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap