A high-voltage cable metal sheath grounding monitoring method and system

A technology for high-voltage cables and metal sheaths, applied in the field of grounding monitoring methods and systems for metal sheaths of high-voltage cables, capable of solving problems such as abnormal monitoring and analysis of ungrounded currents

Active Publication Date: 2021-09-14
XUJI GRP +2
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method and system for monitoring the grounding of the metal sheath of a high-voltage cable, which is used to solve the problem in the prior art that the abnormal situation of the sheath grounding current of the metal sheath of the high-voltage cable is not monitored and analyzed

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 high-voltage cable metal sheath grounding monitoring method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0020] The invention provides a high-voltage cable metal sheath grounding monitoring system, which includes a sheath grounding current acquisition device, an operating current acquisition device, and a monitoring unit. Both the sheath grounding current acquisition device and the operating current acquisition device are connected to the monitoring unit. The grounding current collection device is used to collect the sheath grounding current of the metal sheath of the high-voltage cable, and the running current collection device is used to collect the running current of the high-voltage cable metal sheath, and sends the collected sheath grounding current and running current to the monitoring unit; The monitoring unit is used to give an alarm when the running current of any one of the phases is input, and the running current of this phase is greater th...

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 provides a method and system for monitoring the grounding of the metal sheath of a high-voltage cable, which collects the grounding current and operating current of each phase of the metal sheath of the high-voltage cable, and judges whether an alarm is given according to the grounding current of the protective layer and the operating current. The invention not only realizes on-line dynamic monitoring, but also predicts the cable fault trend, and because the ground current on-line monitoring system is more convenient to install and apply, it greatly saves economic cost investment; it provides more efficient and reliable power supply departments. The ground current monitoring method improves the reliability of the cable line operation, and at the same time improves the operation and maintenance efficiency of the operation and maintenance personnel; it solves the problems of high false alarm rate and low reliability of the ground current monitoring of the metal sheath of the high-voltage cable.

Description

technical field [0001] The invention belongs to the technical field of online monitoring of high-voltage cables, and in particular relates to a method and system for monitoring the grounding of a metal sheath of a high-voltage cable. Background technique [0002] At present, with the continuous development of my country's national economy and the continuous advancement of urbanization, power cables have been widely used due to their advantages of getting rid of the restrictions of overhead corridors, saving urban land, and high reliability of power supply. The rapid growth of high-voltage cables and cable tunnels makes power supply companies face enormous pressure in the operation and maintenance of high-voltage cables and cable tunnels. On the one hand, the rapid increase of cable lines and cable tunnels; on the other hand, the supplement of cable operation and maintenance personnel has not kept up in time. At the same time, the management of high-voltage cables and cable ...

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): G01R19/165G01R31/52G08B13/22
CPCG01R19/16547G08B13/22
Inventor 曾国辉路光辉周水斌雍明超王伟杰梁武民牧继清李英明龚东武兰五胜毛丽娜杨增荣陈磊郭旭
Owner XUJI GRP
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