一种基于VFTO信号的电缆在线监测系统及方法
By utilizing the VFTO signal-based online cable monitoring system, signals generated by disconnector operation or faults are collected and analyzed in real time. Combined with the electromagnetic transient propagation model, the problem of online cable fault identification and location is solved, achieving efficient and accurate cable condition monitoring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HANGZHOU GUANGZHUO POWER TECH CO LTD
- Filing Date
- 2025-10-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient for efficiently identifying and locating faults such as insulation aging, poor joint contact, and partial discharge under actual cable operating conditions. Traditional offline detection methods affect power supply continuity and are costly.
By using the VFTO signal generated by the operation or fault of the disconnecting switch in the power system as the excitation source, and through real-time acquisition, preprocessing, signal feature extraction and electromagnetic transient propagation model, online diagnosis and fault location of cable insulation status, connection point contact status and partial discharge can be realized.
It enables passive online monitoring of cable systems, improving the real-time performance and accuracy of monitoring. It can efficiently identify various fault types and accurately locate fault points, reducing equipment downtime and testing costs.
Smart Images
Figure CN121417486B_ABST