Progress in the Localization and Substitution of New Materials in Ultra-High Voltage (UHV) Equipment

Ultra-High Voltage (UHV) transmission technology, as a key method for global energy transmission, places higher demands on the performance of materials used in core equipment. This paper reviews the new materials employed in UHV equipment, including insulation materials, conductor materials, magnetic materials, and noise reduction materials. It analyzes the main characteristics, current research status, and limitations of each material, with a focus on the progress of domestic substitution for these materials. The aim of this paper is to provide a comprehensive reference for material development and equipment manufacturing, while proposing future directions to address the increasingly stringent service conditions and performance requirements of UHV equipment