Core Viewpoint - The Ulanqab Power Supply Company of Inner Mongolia Electric Power Group is enhancing network security in substation operations by implementing a new operational model that incorporates portable maintenance gateways, addressing vulnerabilities in traditional maintenance practices [1][3][4] Group 1: New Operational Model - The training focuses on promoting a new operational model that integrates "maintenance computer + portable maintenance gateway + maintained equipment," introducing a "security isolation zone" in traditional direct connection links [3] - The portable maintenance gateway features three core protective capabilities: physical isolation to block direct data interaction, two-way identity authentication for maintenance requests, and traffic filtering to intercept abnormal data transmissions [3] Group 2: Training and Implementation - During the training, participants engaged in hands-on practice, discussing real-world issues related to the gateway's compatibility with different equipment models and data transmission management [3] - The training emphasized understanding the parameters, device compatibility, and troubleshooting of the portable maintenance gateway in the context of actual substation operations [3] Group 3: Future Directions - As the digital transformation of the power grid accelerates, ensuring network security at substations is critical for reliable power supply, making the mitigation of operational risks a top priority for the team [4] - The team plans to continue integrating business needs with technological innovation and security measures to strengthen the stability of the power grid [4]