This document specifies the terms and definitions, basic requirements, operating conditions, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and quality commitment of three-phase dry amorphous alloy three-dimensional wound core distribution transformers. This document is applicable to the non-excitation voltage-regulated three-phase dry amorphous alloy three-dimensional wound core assembly for indoor use with a system nominal voltage of 6 kV and 10 kV, a rated frequency of 50 Hz, and a rated capacity of 30 kVA to 2 500 kVA. Electrical transformer (hereinafter referred to as "transformer").
T/ZZB 2873-2022 history
2022T/ZZB 2873-2022 Three-phase dry-type amorphous alloy tridimensional wound-core distribution transformers