Self-walking underground cable failure detection intelligent instrument

Abstract

The invention relates to a self-walking underground cable failure detection intelligent instrument which comprises an underground cable hot failure infrared detector 1. an underground cable partial discharge ultraviolet detector 2. an underground cable insulation aging electric field distribution detector 3. an underground cable self-walking patrolling robot 4 and an underground cable failure predication system 5. The self-walking underground cable failure detection intelligent instrument realizes the comprehensive detection and prediction on the underground cable failure based on the multi-sensor detection, multi-information amalgamation, and movable intelligent patrolling mode, has high degree of automation as well as full-size, intuitive and reliable information, and greatly lightens the working load and working intensity of personnel.

Description

technical field [0001] The invention relates to an underground cable fault detection device, in particular to a self-propelled underground cable fault detection intelligent instrument. Background technique [0002] In the past two decades, in order to ensure the safe operation of power cables, the on-line monitoring technology for the insulation status of power cables has been greatly developed. Foreign countries, especially developed countries such as Europe, America and Japan, are in a leading position in detection methods and technologies. The insulation detection devices researched and developed by them have good application effects, and long-term online operation also provides a large number of monitoring results, which enriches the cable inspection. Criterion for insulation defects and aging. The technical fields related to the invention mainly include underground cable thermal fault detection, cable partial discharge detection, and insulation aging state detection. ...

AI Technical Summary

Problems solved by technology

[0006] The main problem faced by the existing cable line partial discharge detection technology is: how to improve the partial discharge detection sensitivity when there are many interference sources such as corona in the environment of the measurement site

[0009] To sum up, the existing technologies all use a single detection method to propose a solution for a specific fault

In the underground cable field environment, the fault phenomenon caused by various reasons may be very complicated, often resulting in a single method detection failure or inaccurate judgment, and it is urgent to carry out comprehensive detection of cable current carrying capacity, partial discharge, dielectric characteristics and surrounding environmental conditions , to obtain comprehensive cable fault information; at the same time, since the location of the fault point cannot be predicted in advance, the mobile inspection method must be used to realize the full-line detection function

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