Core Viewpoint - The successful handling of equipment defects by the Ulanqab Power Supply Company of Inner Mongolia Electric Power Group ensures the stability of the regional power grid during the autumn season [1] Group 1: Equipment Maintenance - The maintenance team effectively addressed a circuit breaker energy storage fault and replaced the observation window of the current transformer, eliminating two equipment defects that could impact grid safety [1] - The circuit breaker is crucial for connecting different busbars in substations, and its reliable energy storage is essential for quick fault isolation [1] - The observation window of the current transformer is vital for monitoring internal oil levels and operational status, directly affecting the assessment of equipment health [1] Group 2: Operational Efficiency - The maintenance work required the team to complete two distinct defect elimination tasks in the same interval, showcasing their comprehensive skills and efficient collaboration [1] - A detailed site survey and a well-planned operational scheme with risk prevention measures were organized prior to the work [1] - The team demonstrated clear division of labor and effective cooperation, ensuring a safe, high-quality, and efficient operation throughout the process [1] Group 3: Commitment to Safety and Service - The successful completion of the dual defect elimination tasks reflects the technical strength and versatile capabilities of the maintenance team [1] - The team’s actions embody a spirit of responsibility in safeguarding the power grid, aligning with the principle of "Electricity for the People" [1] - The company continues to contribute to the safe and stable operation of the regional power grid through precise operations that eliminate potential hazards [1]

Group 1 - The 10th International Conference on Power and Renewable Energy (ICPRE 2025) will be held from September 19 to 22, 2025, in Hangzhou, Zhejiang, attracting nearly 500 experts and scholars from various countries to discuss cutting-edge topics in power generation, transmission, storage, and renewable energy applications [1][2] - The conference emphasizes the profound changes in the power and renewable energy sector due to the "dual carbon" goals and the deep adjustment of the global energy structure, highlighting the importance of technological innovation and system reconstruction [2][3] - The conference serves as an international academic exchange platform, marking its tenth edition, which signifies its ongoing role in gathering global wisdom and promoting the transformation of cutting-edge research results and interdisciplinary collaboration [2] Group 2 - Keynote speeches will be delivered by prominent figures, including John D. McDonald from GE, focusing on grid modernization and the integration of microgrids and distributed generation [7][9] - The conference will address critical directions such as low-carbon energy systems and the challenges of fault detection and equipment compatibility in DC applications, proposing innovative technical solutions [11]

Core Viewpoint - The State Grid Tibet Electric Power is transitioning its focus to autumn inspection and pre-test work starting in September, with a comprehensive plan to ensure the stable operation of the power grid during the winter peak season [1] Group 1: Autumn Inspection and Maintenance - The autumn inspection period will last until the end of November, involving 487 maintenance and pre-test tasks with over 2,700 personnel deployed [1] - The company is facing multiple challenges, including the simultaneous maintenance of important inter-provincial connections and the need to manage various levels of grid risks [1][3] Group 2: Safety and Risk Management - The company adheres to a "plan first" principle in safety management, implementing strict operational plans and enhancing safety measures for high-risk operations [3] - A "weekly control, monthly report" mechanism has been established for hidden danger management, focusing on the rectification of 21 overloaded main transformers and clearing tree obstacles along power lines [5] Group 3: Seasonal Preparations - Preparations for the winter peak season include inspections for floating debris and fire hazards, as well as maintenance checks on insulation and firefighting facilities at substations [6] - The company is also ensuring the safety of waterworks at power plants and maintaining water reserves, while enhancing emergency support in key areas like Ali and Naqu [6]

Core Viewpoint - The successful resolution of a safety defect in the 500 kV Baitian transmission line by the State Grid Putian Power Supply Company and State Grid Fujian UHV Company enhances the stability and reliability of the power grid during the peak summer electricity demand period [2][4]. Group 1: Safety and Operational Efficiency - The 500 kV Baitian line is a crucial transmission channel for electricity supply from the north to the south in Fujian Province, making its stable operation essential for energy security [2]. - A defect was identified in the R pin of the insulator connection on tower 192 during a drone inspection, which could have led to severe safety risks if not addressed promptly [2][3]. - The operation to rectify the defect was conducted efficiently, with the team achieving "zero perception, zero error" during the high-altitude work [3]. Group 2: Future Collaboration and Technological Advancements - The Putian Power Supply Company plans to deepen collaboration with the State Grid Fujian UHV Company to explore new technologies and equipment for live-line work, aiming to strengthen the safety of the Putian power grid [4]. - This collaboration is expected to contribute significantly to the high-quality development of the Putian region by ensuring a continuous and reliable power supply [4].

证券研究报告：电力设备|深度报告 行业投资评级 强于大市 |维持 行业基本情况 | 收盘点位 | | 6629.95 | | --- | --- | --- | | 52 | 周最高 | 8068.94 | | 52 | 周最低 | 5403.16 | 行业相对指数表现（相对值） 2024-06 2024-09 2024-11 2025-01 2025-04 2025-06 -11% -7% -3% 1% 5% 9% 13% 17% 21% 25% 29% 33% 电力设备 沪深300 资料来源：聚源，中邮证券研究所 研究所 分析师:杨帅波 SAC 登记编号:S1340524070002 Email:yangshuaibo@cnpsec.com 近期研究报告 《全面加快电力现货市场建设+辅助服 务顶层规划发布，有望理顺价格机制， 绿电价值有望重估》 - 2025.05.06 抽蓄系列产业报告 1：抽蓄是促进新能源高质量发 展和提升电力系统安全性的有效途径 驱动因素3：抽蓄的两部制电价，稳定成本回收预期+提升盈利； 国家鼓励民企参与抽蓄电站建设。华东地区规模最大的抽水蓄能电站 ——浙江建德协鑫抽蓄电站（240 ...

Core Viewpoint - The article highlights the dedication and achievements of Pi Zhiyong, a national model worker in the electric power sector, emphasizing his commitment to ensuring the safety and reliability of the power grid through innovative practices and rigorous training [1][3]. Group 1: Personal Background and Development - Pi Zhiyong, aged 50, is the team leader of the secondary repair class at the State Grid Jingmen Power Supply Company and has been rooted in the field for 26 years, evolving from a veteran to a leading figure in power grid maintenance and technological innovation [3]. - After joining the company in 1999, Pi faced challenges due to his lack of knowledge, prompting him to dedicate his spare time to learning and mastering technical skills, resulting in over 1 million words of study notes and more than 2,000 wiring diagrams [3]. Group 2: Achievements and Innovations - Pi has successfully organized the installation and commissioning of 33 newly built and renovated substations, achieving a 100% success rate for initial power supply [3]. - He has completed over 30,000 operations in substation maintenance without any errors, showcasing his expertise and attention to detail [3]. - The "Pi Zhiyong Model Worker Innovation Studio," established in 2012, has led to numerous innovations, including a one-click inspection system that reduces work time from two days to just a few minutes, and a condensation dehumidification device that has eliminated direct current grounding faults [4]. Group 3: Future Commitment and Vision - Pi emphasizes the importance of mastering core technologies in the face of rapid equipment and technology changes, aiming to maintain grid safety and reliability [4]. - He plans to continue his frontline work, focusing on both safeguarding the power grid and fostering innovation to meet new energy transition challenges [4].