GB/T 23755-2020 Three-phase site-combined power transformer

Scope: This standard specifies the terms, definitions, service conditions, product models, and basic parameters of three-phase combined power transformers with a rated capacity of 40,000 kVA and above, a system nominal voltage of 110 kV to 500 kV, and a rated frequency of 50 Hz. Structural requirements. Technical requirements, nameplates, human tolerances, inspection rules and methods. Signs, lifting, packaging, transportation, installation and storage. This standard applies to oil-immersed three-phase combined power transformers used in substations or power plants with limited transportation conditions or layout sites. At

GB/T 23755-2020Three-phase site-combined power transformer