浙江舟山：海岛变电站投运 护航甬舟铁路建设

Core Insights - The 220 kV Wanghai (Jintang) power transmission and transformation project has officially commenced operations, supporting the integration of Zhoushan Archipelago New Area into the Yangtze River Delta and facilitating major projects like the Yong-Zhou Railway [1][2] - The Wanghai substation, covering an area of 15,000 square meters with a total investment of 252 million yuan, is the largest cross-sea interconnected power transmission project of its voltage level in Zhejiang's history [1] - The substation features indoor transformers to mitigate the impact of harsh environmental conditions, enhancing operational stability and reliability [1] Project Efficiency and Technology - The construction of the Wanghai substation took only 13 months, achieving a 45% improvement in overall efficiency [1] - The substation integrates digital technologies, including electronic sand tables and smart robotic inspections, and employs a sunlight introduction system to reduce lighting energy consumption [1] - It is the first 220 kV substation in Zhoushan to utilize remote comparison technology for relay protection settings, with 100% of protection devices connected to the main station system, allowing for verification in approximately 5 minutes [2] Regional Impact - The commissioning of the Wanghai substation is expected to alleviate the increasing electricity demand in the region, particularly with the upcoming completion of the Yong-Zhou Railway, which will end Zhoushan's historical lack of rail connectivity [2] - The project is anticipated to inject new momentum into local leading industries and the port industrial cluster development [2]