A multi-dimensional feature monitoring system for power distribution cables

By integrating partial discharge, fault location, and temperature rise circulation monitoring functions into a multi-dimensional feature monitoring system, the problem of limited functionality in existing equipment has been solved, enabling efficient and accurate cable condition monitoring and fault prediction.

CN122131074APending Publication Date: 2026-06-02WUHAN LIERDA DIGITAL DETECTION TECHNOLOGY CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN LIERDA DIGITAL DETECTION TECHNOLOGY CO LTD
Filing Date
2026-04-01
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing cable monitoring equipment has limited functionality and cannot simultaneously cover the three core risks of insulation partial discharge, fault location, and temperature rise circulating current, resulting in high maintenance difficulty and safety hazards.

Method used

Design a multi-dimensional characteristic monitoring system for power distribution cables, integrating partial discharge monitoring, fault location and temperature rise circulation monitoring functions into one system. It adopts snap-fit ​​integrated sensors and shared hardware devices, and combines the system fusion management platform to perform multi-parameter synchronous acquisition and data fusion analysis.

Benefits of technology

It enables simultaneous acquisition of multiple parameters and precise data fusion, improving the accuracy of fault tracing and monitoring efficiency, and reducing equipment procurement and maintenance costs.

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Abstract

This invention relates to a multi-dimensional characteristic monitoring system for power distribution cables. The system includes a snap-on integrated sensor, partial discharge / fault location / temperature rise circulating current monitoring equipment, shared hardware equipment, and a system fusion management device. The integrated sensor synchronously collects partial discharge, fault traveling wave, temperature, and circulating current signals and outputs them uniformly. The three monitoring devices receive signals through a unified interface and analyze them independently. The shared hardware provides unified power supply, communication, and GPS / BeiDou dual-mode clock synchronization. The system fusion management device performs multi-dimensional data fusion analysis and collaborative early warning. All devices achieve time synchronization, resource sharing, and data interoperability. The fault location equipment integrates multi-source abnormal data to complete fault prediction and accurate location. The fusion management device mines parameter linkage relationships to identify complex hidden dangers. This system achieves integrated collaborative monitoring of multi-dimensional characteristics of power distribution cables, improves the accuracy of monitoring and fault tracing, reduces equipment and maintenance costs, and is suitable for the operation and maintenance needs of 6-35kV power distribution network cables.
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Citation Information

Patent Citations

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    CN105699856A

  • Cable partial discharge detection method and device

    CN113866578A

  • Cable insulation operation temperature and circulation on-line monitoring method

    CN115950550A