The stator has the ability to " rotate" the excitation field so that the ro=
tor produces output in phase with the Mains. The stator does not rotate, ju=
st the magnetic field.=20
There are many windings connected to many cabinets and there is a phase met=
er on the main control panel that must match with in a degree before the ge=
nerator is put on line.=20
The stator is really impressive to see with the amount of separate field wi=
ndings stacked in a giant ring. The stator cooling is done from the outside=
 diameter.=20

Cheers,=20

Fred=20

----- Original Message -----=20
From: "Justin Richards" <justin.richards@gmail.com>=20
To: "Microcontroller discussion list - Public." <piclist@mit.edu>=20
Sent: Sunday, May 8, 2011 12:56:25 AM=20
Subject: [OT]:how are hydroelectric power stations synchronised=20

The question has come up regarding syncronising hyrdoelectric power station=
s.=20

I can see how a diesel fired station is controlled but I cant see how=20
you could control a hydro powered turbine.=20

I guess they generate ac and variable freq convert to dc and convert to ac.=
'=20


However, the converts would have to handle a huge amount of power and=20
perhaps not possible to build such a device.=20

Any ideas.=20

The web didn't want to play.=20

Cheers Justin=20
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