一种环网柜内部电弧故障快速检测泄压系统
The ring main unit arc fault detection system, which integrates multi-channel sensor fusion and graded pressure relief control, solves the problems of response speed and reliability in ring main unit arc fault detection, and achieves fast and accurate arc fault protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 德川电气有限公司
- Filing Date
- 2026-04-02
- Publication Date
- 2026-07-17
AI Technical Summary
Existing ring main unit arc fault detection technologies suffer from slow response speed, poor detection reliability, and inaccurate pressure relief control, making it difficult to quickly and effectively protect equipment and personnel safety when an arc fault occurs.
By employing a multi-channel sensor fusion and graded pressure relief control approach, and combining arc light sensors, pressure sensors, and current sensors with the STA/LTA algorithm, sub-millisecond-level arc detection and graded pressure relief response are achieved. Through characteristic function calculation, parallel short-time and long-time recursive calculation, multi-channel fusion trigger judgment, and graded pressure relief control, arc faults can be quickly identified and the pressure relief intensity can be adjusted according to the severity.
This technology reduces the response time for arc fault detection from tens of milliseconds to approximately one millisecond, improving detection reliability and pressure relief control accuracy, and ensuring equipment safety and personnel protection.
Smart Images
Figure CN121965345B_ABST