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How is the voltage regulated with changing loads?
In my understanding, turning up the power really means bringing more
generators on line
and if the demand is less than the capacity of the
running generators, the excess is dumped back to ground.
Another Web site talked about DC transmission being more efficient than
AC--but I think they were talking about at the same voltage.
The particular Canadian DC line was running at 900K!
how [do] the various power
plants on a grid synchonize frequency and phase as their output is merged?