【Daily Question】Electrical Technology 2019-3-15
Thread Content
It is a transformer in which the high-voltage winding is connected in Y configuration with a neutral point led out, and the low-voltage winding is connected in Δ configuration; the line voltage of the low-voltage winding leads the phasor of the line voltage of the high-voltage winding by 30° (or the potential phasor lags by 330°), and its connection group designation is . A. Y,d11 B. YN,d11 C. Y,d1 D. YN,d1B
B．YN,d11