Partial discharge detection and analytic diagnosis system for GIS cable terminal

A technology of partial discharge detection and cable termination, which is applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the inability to accurately judge the severity of partial discharge, the detection method cannot effectively and comprehensively find partial discharge signals, and field test experience requirements Extremely high and other problems, to make up for the inability to accurately diagnose partial discharge signals, realize comprehensive detection, and improve the detection rate

Inactive Publication Date: 2018-10-12
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
View PDF9 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A single detection method cannot effectively and comprehensively discover the partial discharge signal inside the GIS cable terminal, and the analysis and diagnosis of the partial discharge signal requires extremely high on-site testing experience of the inspectors. Sometimes even if the signal is found on the spot, the partial discharge signal cannot be accurately judged. severity

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
  • Partial discharge detection and analytic diagnosis system for GIS cable terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0018] refer to figure 1 , a preferred embodiment of the present invention provides a GIS cable terminal partial discharge detection and analysis diagnosis system, including: ultrasonic sensor 4, ultra-high frequency sensor 5, high frequency pulse current sensor 6, first signal amplifier 7, second signal Amplifier 8 , broadband gain amplifier 9 , data acquisition unit 10 , data storage server 11 , analysis and diagnosis platform 12 .

[0019] The ultrasonic...

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 partial discharge detection and analytic diagnosis system for a GIS cable terminal. The system comprises an ultrasonic sensor, an ultrahigh-frequency sensor, a high-frequencypulse current sensor, a data acquisition unit, a data storage server and an analytic diagnosis platform, wherein the ultrasonic sensor and the ultrahigh-frequency sensor are installed on a tail tubeof the GIS cable terminal, the high-frequency pulse current sensor is installed on a grounding wire of the GIS cable terminal, the ultrasonic sensor, the ultrahigh-frequency sensor and the high-frequency pulse current sensor are connected with the data acquisition unit separately, the data acquisition unit is connected with the data storage server, and the data storage server is connected with theanalytic diagnosis platform. By adopting three different detection methods to perform long-term partial discharge online monitoring on the GIS cable terminal, the problem of large on-site interference can be effectively solved, and the accuracy of analytic diagnosis of partial discharge signals can be improved.

Description

technical field [0001] The invention relates to the technical field of partial discharge detection of electric power equipment, in particular to a GIS cable terminal partial discharge detection and analysis diagnosis system. Background technique [0002] Partial discharge is the main manifestation of insulation defects in GIS, switch cabinets, cables and other high-voltage electrical equipment, and the further development of partial discharge is the main cause of insulation failure of power equipment. Statistics show that nearly 85% of power equipment accidents are caused by partial discharge. Partial discharge detection is an effective method to quantitatively analyze the insulation degradation process, so it is of great significance to carry out partial discharge detection on GIS cable terminals. [0003] Due to the weak partial discharge signal of high-voltage cables, under the influence of field noise and external electromagnetic interference, it is difficult to detect ...

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): G01R31/12
CPCG01R31/1272
Inventor 黄锋李婧郭金明田树军
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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