NF C52-112-3-2007
最高电压不超过36kV的设备用50kVA~2500kVA三相油浸配电变压器.第3部分:载有非正弦电流的变压器额定功率的测定
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 3 : determination of the power rating of a transformer loaded with non-sinusoidal currents.