This standard specifies the product model, technical requirements, and testing requirements for 10kV three-phase oil immersed on load capacity and voltage regulating transformers (hereinafter referred to as "capacity and voltage regulating transformers"). This standard is applicable to a rated frequency of 50Hz and a voltage level of_ 10kV, with a rated capacity of 100 (30) kVA to 630 (200) kVA for capacity and voltage regulation. The regulation of capacity and voltage involved in this standard is not applicable to situations where there is a need for continuous operation and frequent capacity regulation (exceeding 6 adjustments per day) or frequent residual voltage regulation (exceeding 15 adjustments per day). The following normative references are essential for the application of this sub document. For dated references, only the dated version applies to this document. For all referenced documents that are not marked as blank, the latest version (including all modification orders) applies to this document. GB/T 1094 Power Transformers Part 1: General Provisions GB/T 1094 Power Transformers Part 2: Temperature Rise of Liquid Immersed Transformers GB/T 10943 Power Transformers Part 3: Insulation Levels Insulation Testing and External Insulation Air Gap GB/T 1094.5 Power Transformers Part 5: Ability to withstand short circuits GB/T 29001 Basic Terminology of Electrical Terminology GB 2536 Unused Mineral Insulating Oils for Electrical Fluid Transformers and Switches GB/T 4208 Degrees of Protection Provided by Enclosures (IP Code) GB/T 645LT Oil-immersed Power Transformers - Technical Parameters and Requirements - GB/T 65872012- General Specification for Electronic Measuring Instruments - GB/T 10230 Tapping Switches - Part 1: Performance Requirements and Test Methods - GB/T 10230.2 Tapping Switches - Part 2: Application Guidelines - GB/T 15153.1- Equipment and Systems - Part 2: Working Conditions - Part 1: Power Supply and Electromagnetic Compatibility (IEC 870-2-1:1995, IDT)
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