December 2012
Beginner
528 pages
17h 31m
English
Content preview from Introduction to Electrical Power and Power Electronics
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AC Generator
Nearly all electrical power in the world is generated by the three-phase synchro-
nous generator, which is also known as the ac generator or the alternator. It con-
sists of three stationary coils (called the stator, armature, or phase coils), which
are physically separated in space by 120° from each other, and a rotor with dc coil
that produces the dc magnetic eld. Both the stator and rotor coils are individually
embedded in ferromagnetic cores with an air gap that is consistent with the electri-
cal and mechanical design requirements. Figure 3.1 is a simplied cross section of a
three-phase generator with three stator coils and ...
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