Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

GIL insulator flashover voltage increasing method based on gas-solid interface electric field optimization

A gas-solid interface and flashover voltage technology, applied in insulators, circuits, electrical components, etc., can solve the problems of enhancing local electric field, threatening the safe operation of the system, reducing the flashover voltage of insulators, etc., to improve the flashover voltage and optimize the structure. , the effect of improving reliability

Inactive Publication Date: 2019-04-19
TIANJIN UNIV +1
View PDF9 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that under a DC electric field, charges tend to accumulate on the surface of the insulator during long-term operation, thereby enhancing the local electric field and causing partial discharges, resulting in flashover along the surface of the insulator, which greatly threatens the safe operation of the entire system
For example, the electric field distortion caused by the accumulation of negative charges can lead to a significant reduction of 22.8% in the flashover voltage of the insulator

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
  • GIL insulator flashover voltage increasing method based on gas-solid interface electric field optimization
  • GIL insulator flashover voltage increasing method based on gas-solid interface electric field optimization
  • GIL insulator flashover voltage increasing method based on gas-solid interface electric field optimization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0016] The invention provides a method for improving the flashover voltage of GIL insulators based on the optimization of the electric field at the gas-solid interface. Through fluorinated surface treatment, the thickness of the fluorinated layer of the insulator and the distribution of the surface conductance are regulated to optimize the electric field distribution; the thickness of the fluorinated layer of the insulator and the surface conductance The gradient distribution depends on the surface geometry design.

[0017] like Picture 1-1 Shown, the surface treatment flow process of embodiment one is as follows:

[0018] (1) Starting from the junction of the surface of the insulat...

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 GIL insulator flashover voltage increasing method based on gas-solid interface electric field optimization. A surface of an epoxy insulator is partitioned, different parts ofthe epoxy insulator are respectively subjected to fluorination treatment at different degrees, and the surface conductivity of the insulator is high at three junction points where an electric field distorts, so that electric field distribution is improved, flashover voltage of the insulator along the surface is improved, and the insulating property of the insulator is improved.

Description

technical field [0001] The invention belongs to the field of modified polymer materials and equipment manufacturing, in particular to a method for improving the flashover voltage of GIL insulators based on the optimization of the gas-solid interface electric field. Background technique [0002] Compared with overhead line and cable transmission, GIL has the advantages of flexible laying method, large transmission capacity, high reliability and environmental friendliness. In recent years, it has made great progress in solving power transmission in special areas. In GIL's gas / solid composite insulation system, epoxy cast pot and column insulators are usually selected for conductor support and electrical insulation. Studies have shown that under a DC electric field, charges tend to accumulate on the surface of the insulator during long-term operation, thereby enhancing the local electric field and causing partial discharges, resulting in flashover along the surface of the insul...

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): H01B19/04
CPCH01B19/04
Inventor 杜伯学冉昭玉李进梁虎成傅明利侯帅景一王泽华刘浩梁
Owner TIANJIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com