Patent ID: 6995546

Claim:
An alternating current generator having a three-phase power source for outputting a three-phase alternating current electric power and a single-phase three-wire power source for outputting a single-phase alternating current electric power, the generator comprising: two taps, each of which being respectively provided with any two of three armature windings at a position where each winding number of the two armature windings from a winding start end of a neutral point is equal; and two armature extension windings, each of which having a half winding number from said winding start end to said tap, and being connected so as to electrically become a same phase as a remaining armature winding other than said two armature windings and to extend to said taps, wherein said three-phase power source is configured so that the three armature windings are connected to said neutral point in Y-connection, wherein said three armature windings are wound from the winding start end connected to said neutral point to winding finish ends with same winding numbers and a phase difference of 120 degrees of an electric angle, respectively.