Core Viewpoint - The Inner Mongolia Electric Power Group's Ulanqab Power Supply Company successfully completed critical maintenance work on electrical equipment despite severe weather conditions, ensuring the stability and safety of the regional power grid [1][4]. Group 1: Weather Impact and Response - From July 23 to 25, the Ulanqab region experienced rare continuous heavy rainfall, prompting the Inner Mongolia Electric Power Group to upgrade the weather risk alert level from three to two [1]. - The company faced a crucial power outage maintenance window during this adverse weather, demonstrating commitment to maintaining operational schedules despite challenges [1]. Group 2: Equipment Maintenance and Upgrades - The maintenance involved replacing aging current transformers, which had shown signs of deterioration due to prolonged use, and optimizing the performance of the 2nd main transformer [1]. - The transformation of the current transformer ratio from 600/5 to 1200/5 significantly enhanced the equipment's saturation resistance, contributing to improved safety and performance [1]. Group 3: Team Efforts and Training - Despite muddy and difficult working conditions, the maintenance teams, including relay protection, substation maintenance, and high-voltage testing, worked efficiently and collaboratively to complete the tasks as planned [1][3]. - The relay protection team leader utilized the opportunity for on-site training, providing practical lessons to younger employees, thereby fostering skill transfer and team spirit [3]. Group 4: Future Commitments - The successful completion of this maintenance not only eliminated safety hazards but also optimized relay protection performance, laying a solid foundation for reliable power supply during peak summer demand [4]. - The company plans to continue enhancing hazard identification and management, adhering to high standards and strict requirements to ensure the safe and stable operation of the power system [4].