Salient n-poles of a synchronous machine

(a) A salient six-pole rotor for a synchronous machine.
(b) Photograph of a salient eightpole synchronous machine rotor showing the windings on the individual rotor poles. (Courtesy of General Electric Company.)
(c) Photograph of a single salient pole from a rotor with the field windings not yet in place. (Courtesy of General Electric Company.)
(d) A single salient pole shown after the field windings are
installed but before it is mounted on the rotor. (Courtesy of Westinghouse Electric Company.)