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

A multi-source joint detection method for partial discharge of gas-insulated electrical equipment

A technology of partial discharge and joint detection, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc.

Active Publication Date: 2018-04-20
WUHAN UNIV +2
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is aimed at the existing SF 6 A single partial discharge signal detection method for gas-insulated electrical equipment, providing a SF 6 Experimental method for multi-sensor joint detection of partial discharge in gas-insulated electrical equipment, simulating SF in the laboratory 6 Partial discharge under various typical defect models in gas-insulated electrical equipment, so as to obtain characteristic information such as sound, light, and composition of partial discharge, which is an SF based on multi-source partial discharge information. 6 Provide an experimental basis for fault diagnosis and insulation state assessment of gas-insulated electrical equipment

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
  • A multi-source joint detection method for partial discharge of gas-insulated electrical equipment
  • A multi-source joint detection method for partial discharge of gas-insulated electrical equipment
  • A multi-source joint detection method for partial discharge of gas-insulated electrical equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0055] A multi-sensor joint detection experimental method for partial discharge of gas-insulated electrical equipment, using the above-mentioned device, for SF 6 The specific steps of PD simulation experiment and multi-dimensional partial discharge information collection and analysis for gas-insulated electrical equipment are as follows:

[0056] ⑴Experimental preparation

[0057] ①Placing artificial insulation defect model and device dust removal treatment

[0058] First, according to the schematic diagram of the test circuit figure 1 Accurately connect each device, ground all test equipment in turn to ensure the electrical safety of the test; uncover the spherical top cover 19 of the stainless steel columnar cavity 22 of the gas discharge chamber 7 in the test device, and use ethanol liquid to cover the stainless steel cavity 22 The inner wall of the artificial defect model 31 is cleaned and wiped, and the impurities and dust on the device are removed, and the two ends of ...

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
lengthaaaaaaaaaa
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of on-line monitoring technology of insulative condition of SF6 (sulfur hexafluoride) gas insulated electric equipment, and in particular relates to a gas insulated electric equipment partial discharge multi-source joint detection method. The detection method mainly comprises the steps of preparing a test, cleaning a stainless steel cylinder, filling with SF6 gas, performing an industrial frequency AC SF6 gas PD test, pulse current detection, ultrahigh frequency sensor detection, fluorescent optical fiber sensor detection, discharge gas collection and component detection and the like. The detection method provided by the invention is simple in operation, liable to promote, and provides references for multi-dimensional information joint detection method. The detection method is widely applied to SF6 gas insulated electric equipment partial discharge multi-sensor joint detection under the condition of power frequency, and provides a simple test scheme for multi-dimensional information extraction of PD (Potential Difference) decomposition characteristics and a decomposition theory.

Description

technical field [0001] The present invention belongs to sulfur hexafluoride (SF 6 ) The technical field of on-line monitoring of the insulation state of gas-insulated electrical equipment, specifically relates to a multi-sensor joint detection test method for partial discharge of gas-insulated electrical equipment. Background technique [0002] With sulfur hexafluoride gas (SF 6 ) SF6 Gas Insulated Switchgear (GIS for short) as the insulation and arc extinguishing medium has developed rapidly and is widely used in high-voltage power systems due to its advantages of high reliability, small maintenance, small footprint, and flexible configuration. And ultra / ultra-high voltage field, has gradually become one of the preferred equipment and important symbols of modern substations. GIS has always been generally considered as low-maintenance or even maintenance-free high-voltage electrical equipment, but according to the statistics of the International Power Grid Commission (CIGR...

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 Patents(China)
IPC IPC(8): G01R31/12G01N30/02
CPCG01N30/02G01N2030/025G01R31/1254
Inventor 唐炬张晓星曾福平金淼万凌云姚强苗玉龙杜修明逯遥
Owner WUHAN 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