Page 239 - Electrical Equipment Handbook _ Troubleshooting and Maintenance
P. 239

SYNCHRONOUS GENERATORS

            12.2                      CHAPTER TWELVE



                                     N
                                        Slip
                                        rings

                                          S
                                 S

                                          N
                                 N

                                  (a)
                                                             (b)












                           (c)








                                                             (d)
            FIGURE 12.1 (a) A salient six-pole rotor for a synchronous machine. (b) Photograph of a salient eight-
            pole 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.)
















                FIGURE 12.2 A nonsalient two-pole rotor for a synchronous machine.



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