This standard specifies the performance parameters, technical requirements, inspection rules and methods, marking, lifting, packaging, transportation, and storage of oil immersed power transformers. This standard applies to three-phase oil-immersed power transformers with a rated capacity of 30 kV · A and above, a rated frequency of 50 Hz, and voltage levels of 6 kV, 10 kV, 35 kV, 66 kV, 110 kV, 220 kV, 330 kV, and 500 kV, as well as single-phase oil-immersed power transformers with a voltage level of 500 kV. The following normative references are essential for the application of this document. For all dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB 1094.1 Power Transformers Part I: General GB1094.2 Power Transformers Part 2: Temperature Rise of Liquid Immersed Transformers GB 1094.3 Power Transformers Part 3: Insulation Levels, Insulation Tests, and External Insulation Air Clearances GB 1094.5 Power Transformers Part 5: Ability to withstand Short Circuits GB/T 1094.7 Power Transformers Part 7: Load Guidelines for Oil Immersed Power Transformers GB/T 2900.95 Electrotechnical Terminology Transformers Voltage regulator and reactor JB/T10088 6 kV -500 kV power transformer sound level
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