pypsa.pf.wye_to_delta# pypsa.pf.wye_to_delta(z1: float, z2: float, z3: float) → tuple[float, float, float]# Follows http://home.earthlink.net/~w6rmk/math/wyedelta.html. Parameters: (int (z3) float (Third impedance value) complex) (or) (int float complex) (int float complex) Returns: A tuple containing the three transformed impedance values Return type: tuple[float, float, float]