Three phase oil-immersed distribution transformers, 50 Hz, from 50 to 2500 kVA with highest voltage for equipment not exceeding 36 kV, Supplementary requirements for transformers with highest voltage for equipment equal to 36 kV— 12 стр.
Three-phase oil-immersed distribution transformers 50 Hz, from 50 kVA to 2 500 kVA with highest voltage for equipment not exceeding 36 kV. General requirements— 18 стр.
