On the Theory of Cylindrical Rotor A. C. Machines, Including Main Flux Saturation

In recently published papers concerned with variable saturation in cylindrical rotor a. c. machines, a cross-saturation effect was described, caused by variable saturation. Using the same approximations as applied in the cited papers we will show that Faraday's law applied to cylindrical rotor a.c. machines including variable saturation excludes any transformer effect that links the mutually perpendicular axes of a general reference frame. In reality the induced component voltages in the directions of coordinate axes are well defined by transformer and rotational effects in agreement to Faraday's law, showing that the coordinate axes of the general coordinate system used, are magnetically independent.