THEORY, CONSTRUCTION, AND OPERATION
CHAPTER 1 PRINCIPLES OF OPERATION OF SYNCHRONOUS MACHINES The synchronous electrical generator (also called alternator) belongs to the family of electric rotating machines. Other members of the family are the direct-
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geosci.uchicago.edu8 PRINCIPLES OF OPERATION OF SYNCHRONOUS MACHINES Voltage (e) α α E (phasor) ω Fig. 1.7 A phasor E, that can represent the voltage impressed on a circuit.The phasor is made of a vector with magnitude proportional to the magnitude of E, rotating at a constant rotational speed ω.
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