Comprehensive monitoring method and system for cable faults and operation states

A technology for comprehensive monitoring of cable faults, applied to the fault location, phase angle between voltage and current, and measurement of electricity, can solve the problems of cumbersome operation, inability to judge cable fault information, and large amount of offline cable fault location. , to achieve the effect of avoiding a large amount of engineering

Pending Publication Date: 2021-02-12
GUANGZHOU SCISUN TECH
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The traditional cable metal sheath current monitoring device only measures the current and cannot judge the cable fault information
[0006] The traditional offline cable fault location requires a large amount of engineering and cumbersome operations

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
  • Comprehensive monitoring method and system for cable faults and operation states
  • Comprehensive monitoring method and system for cable faults and operation states
  • Comprehensive monitoring method and system for cable faults and operation states

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0057] Aiming at the problems existing in the prior art, the present invention provides a comprehensive monitoring method and system for cable faults and operating states. The present invention will be described in detail below in conjunction with the accompanying drawings.

[0058] Such as figure 1 As shown, the present invention provides a comprehensive monitoring system for cable faults and operating states that calculates cable fault (hidden danger) points and judges fault types by collecting amplitude and phase information of metal sheath currents at different frequencies. The current value of the cable metal sheath i...

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 belongs to the technical field of cable monitoring, and discloses a cable fault and operation state comprehensive monitoring method and system, and the method comprises the steps: collecting the amplitude and phase information of a metal sheath current at different frequencies, carrying out the calculation of a cable fault point, and analyzing whether a cable has a fault or not; according to the judged fault, carrying out fault type judgment, and carrying out cable fault positioning; and sending the acquired cable fault point data, the fault type and the fault positioning point information to a background. The invention provides a method for judging the fault type of a cable by monitoring the current information of a metal sheath of the cable, and overcomes the defect that the conventional current monitoring device for the metal sheath of the cable only measures the current and cannot judge the fault information of the cable. The invention provides a method for positioning a cable fault point by monitoring current information of a metal sheath of a cable, and overcomes the defects that the conventional offline cable fault positioning work amount is large and the operation is complicated.

Description

technical field [0001] The invention belongs to the technical field of cable monitoring, and in particular relates to a comprehensive monitoring method and system for cable faults and operating states. Background technique [0002] At present, the power cable is composed of a core conductor, an insulating layer, a filling layer, a metal sheath and an outer protective layer. When the wire core flows through the current, an electromagnetic field will be generated in a certain space, and an effective current path will be formed between the metal sheath and the earth, and a loop current will be generated under the condition of its induced voltage, that is, the grounding loop current of the cable. [0003] In the case of a cable fault, the increase in the current of the metal sheath will cause the temperature of the metal sheath to rise continuously, resulting in a certain degree of weakening of the insulation and shortening the operating life of the cable. [0004] Through the ...

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): G01R31/08G01R19/165G01R19/04G01R31/52G01R25/00
CPCG01R31/08G01R31/088G01R19/16571G01R31/52G01R19/04G01R25/00
Inventor 刘勇村洪云陈浩鑫
Owner GUANGZHOU SCISUN TECH
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