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.
Classification of environmental conditions. Classification of groups of environmental parameters and their severities, Microclimates inside products— 16 стр.
Three-phase oil-immersed distribution transformers 50 Hz, from 50 kVA to 2500 kVA with highest voltage for equipment not exceeding 36 kV. Requirements and tests concerning pressurised corrugated tanks— 6 стр.
Medium power transformers 50 Hz, with highest voltage for equipment not exceeding 36 kV. Transformers with cable boxes on the high-voltage and/or low-voltage side. General requirements for transformers with rated power less than or equal to 3 150 kVA— 14 стр.
Medium power transformers 50 Hz, with highest voltage for equipment not exceeding 36 kV -- Part 2: Transformers with cable boxes on the high-voltage and/or low-voltage side - General requirements for transformers with rated power less than or equal to 3 150 kVA (english version)