The Three-Phase Transformer (Two Windings) has a problem with shift angles. When you use D1 (primary or secondary) there's no shift angle, input and output stay together, but the shift angle should be + or - 30 degrees (images D1_Yg and Y_D1). When you use D11 (primary or secondary) there's a shift angle about + or - 60 degrees, but the shift angle should be + or - 30 degrees (images D11_Yg and Y_D11). I'm not sure if shift angle of harmonic sines or currents fundamental and harmonics is working correctly. Can anyone answer to me if I done something wrong?
Shift angle D1_Yg and Y_D1 (input and output together)
Shift angle D11_Yg and Y_D11 (shift phase of 60 degrees by fourier)
