Three-phase oil-immersed distribution transformers 50 Hz, from 50 kVA to 2 500 kVA with highest voltage for equipment not exceeding 36 kV -- Part 2-1: Distribution transformers with cable boxes on the high-voltage and/or low-voltage side - General requirements
最高电压不超过36kV的设备用50Hz 50 kVA至2500 kVA的三相油浸式配电变压器第2-1部分:高压和/或低压侧带电缆盒的配电变压器一般要求