On a stator core (3), there are wound T-connection primary generating windings (WU,WV,WW) such that the second and third single-phase windings (WV,WW) are respectively arranged at positions electrically orthogonal to the first single-phase winding (WU). The winding number of the first single-phase winding (WU) is 31/2 times that of the second single-phase winding (WV) or the third single-phase winding (WW). The stator excitation windings (We) are also wound on the stator core, which are connected to the center taps (u,v,w) of the primary generating windings (WU,WV,WW) through a control rectifier (5). A plurality of field windings (Wf) are wound on a rotor core (7). The field windings are arranged at positions where they are magnetically coupled with both the odd-order spatial higher harmonic components of armature reaction magnetic fields produced by currents (I₁,I₂,I₃) flowing in the primary generating windings and the static magnetic fields produced by current (Ie) flowing in the stator excitation windings (We). Due to the T-connection primary generating windings, the generator is capable of simultaneously generating not only the three-phase outputs but also the single-phase three-line outputs.
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