继电保护安全技术在电气自动化系统中的应用

The safety technology of relay protection is the "safety guard" of electrical automation system, which plays an irreplaceable key role in ensuring the reliable operation of power system. As the first line of defense for fault isolation and self-healing of power grid, it is of great significance to ensure the stable operation of electrical automation system. In the first time when the system fails, the relay protection technology can judge and execute the cut-off command in milliseconds, effectively prevent the fault diffusion and chain reaction, ensure the power supply quality in the non-fault area, and provide decision support for the subsequent system reconstruction. Based on the above understanding, this paper starts from the concept of electrical automation system relay protection technology, analyzes the application principles and technical types of relay protection safety technology, and puts forward the application countermeasures of electrical automation system relay protection safety technology on this basis.