海拔最高750千伏超高压变电站投运两年送电超65.5亿千瓦时

Core Viewpoint - The 750 kV ultra-high voltage substation at the National Energy Group's Qinhai Malda Dam has been operational for two years, delivering over 6.55 billion kWh of electricity, playing a crucial role in clean energy transmission in high-altitude regions [1] Group 1: Infrastructure and Capacity - The substation is located at an altitude of 3,365 meters in the Hainan Tibetan Autonomous Prefecture, approximately 1.2 kilometers from the Malda Dam [1] - It features two transformers with a capacity of 2.1 million kVA, five 750 kV outgoing lines, and nineteen 330 kV outgoing lines, facilitating the transmission of hydropower and renewable energy from various regions [1] Group 2: Operational Challenges and Solutions - The substation faces harsh natural conditions such as strong winds and variable climate, which can affect equipment efficiency [1] - To address these challenges, the company conducts frequent inspections and precise maintenance of equipment, utilizing advanced technologies like intelligent inspection systems and online monitoring systems to track operational status in real-time [1] Group 3: Technological Advancements - As a smart substation, it allows operational personnel to share data and interact intelligently with adjacent substations and grid dispatching through advanced auxiliary control systems [1] - This capability enhances the safety and stability of the power grid, improves regional power supply reliability, and strengthens the ability to withstand accidents [1] Group 4: Environmental Impact - The substation plays a significant role in optimizing the utilization of water resources in the upper Yellow River and in the development of clean energy [1]