Core Viewpoint - The successful completion of the 220 kV Yuling Substation comprehensive automation renovation project by the Ulanqab Power Supply Company enhances the safety and stability of the regional power grid [1][3]. Group 1: Project Overview - The project took four months to complete, transitioning from summer to winter, and is the first full station backend replacement project for the Ulanqab Power Supply Company [3]. - The project team implemented an innovative "dual backend operation" model to address the challenge of "full station power outage" during traditional renovations [3]. Group 2: Technical Achievements - The renovation involved significant work, including the upgrade of core equipment at the substation, with a total of 51 protection, measurement and control, recording, and DC screen cabinets replaced [3]. - The team updated 22 switch cabinet protection and measurement control devices, thereby refreshing the core control equipment configuration of the substation [3]. Group 3: Operational Efficiency - During the construction, each completed interval's power outage was smoothly integrated into the new backend system, while the remaining unrenovated intervals operated under the synchronized dual backend, achieving the goal of "renovation without power outage and uninterrupted supply" [3]. - The maintenance team optimized work processes by pre-raising the screen cabinets and completing wiring tasks, significantly reducing on-site construction time and minimizing the impact on users' power supply [3].