A single-phase ground fault transition resistance calculation method, device, equipment and storage medium
By calculating the grounding transition resistance and utilizing the voltage and current of the grounded phase, the problem of untimely single-phase grounding fault investigation was solved, enabling rapid fault location and power restoration, and improving power supply reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- POWER RES INST OF STATE GRID SHAANXI ELECTRIC POWER CO LTD
- Filing Date
- 2023-05-22
- Publication Date
- 2026-06-30
AI Technical Summary
In the current technology, the investigation of single-phase grounding faults mainly relies on sectional testing and manual visual inspection, which makes it impossible to deal with them in a timely manner, resulting in long power restoration time and affecting social production and life order.
By calculating the magnitude of the grounding transition resistance, and utilizing the voltage of the grounded phase during normal operation of the power system, the zero-sequence voltage of the bus, and the zero-sequence current of the faulted line, the grounding resistance is calculated. This provides a method, device, and equipment for calculating the transition resistance of a single-phase grounding fault, which can be used in low-current grounding fault location devices.
It shortened the troubleshooting time, improved power supply reliability and user satisfaction, and reduced economic losses caused by power outages.
Smart Images
Figure CN116593823B_ABST