用于检测电气设施中隔离故障的方法、设备和系统
By injecting specific frequency signals into electrical facilities to measure voltage and current, and calculating impedance to identify the operating status of the electrical facilities, the false alarm problem of isolation fault detection systems is solved, achieving accurate fault identification and simplified system management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SCHNEIDER ELECTRIC IND SAS
- Filing Date
- 2021-08-09
- Publication Date
- 2026-07-17
AI Technical Summary
Existing electrical fault detection systems are prone to generating false alarms, especially when the current amplitude is low and electrical effects are present, leading to unnecessary operational interference.
Using isolated monitors and positioning devices, voltage and current are measured by injecting signals that periodically oscillate at predefined first and second frequencies into the electrical load of the electrical facility, the impedance of the electrical facility is calculated, and the operating condition is identified based on predefined conditions.
Effectively identify and isolate true faults in electrical facilities, reduce false alarms, simplify system installation and management, and adapt to the characteristics of different electrical facilities.
Smart Images
Figure CN116097107B_ABST