[Info-vax] IE8 got me too :-( Sorry Jeff.

[JF Mezei]

glen herrmannsfeldt wrote:

> Not so many years ago we toured Grand Coulee and I was even
> more surprised to learn that they run at 72RPM.  I suppose
> for something that big it can't turn at 20Hz, 


Could they be generating some DC current which is later converted to
60hz and synchronized with the grid ?

Or is it possible that they are wired as DC generators, but the "grid"
controls the magnets to end up creating precise 60hz that is
synchronized to the grid ?