There are many factors that affect the phase angle. Path length is one, so is the impedance of the lines (a line with double the X will get the same phase offse

There are many factors that affect the phase angle. Path length is one, so is the impedance of the lines (a line with double the X will get the same phase offset in half the length). Other equipment will have phase offsets such as transformers where the phase offset is a function of the winding configuration. There are event specialized transformers just for this purpose https://en.wikipedia.org/wiki/Quadrature_booster https://en.wikipedia.org/wiki/Quadrature_booster